WO2016143140A1 - Display device, monitoring system, display method, and display program - Google Patents

Display device, monitoring system, display method, and display program Download PDF

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Publication number
WO2016143140A1
WO2016143140A1 PCT/JP2015/057379 JP2015057379W WO2016143140A1 WO 2016143140 A1 WO2016143140 A1 WO 2016143140A1 JP 2015057379 W JP2015057379 W JP 2015057379W WO 2016143140 A1 WO2016143140 A1 WO 2016143140A1
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WO
WIPO (PCT)
Prior art keywords
interest
display
region
screen
trend
Prior art date
Application number
PCT/JP2015/057379
Other languages
French (fr)
Japanese (ja)
Inventor
剣云 朱
Original Assignee
富士電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 富士電機株式会社 filed Critical 富士電機株式会社
Priority to CN201580001732.5A priority Critical patent/CN106164796B/en
Priority to PCT/JP2015/057379 priority patent/WO2016143140A1/en
Priority to KR1020167004741A priority patent/KR20170127344A/en
Priority to JP2016512131A priority patent/JP6428766B2/en
Priority to TW104140333A priority patent/TWI715546B/en
Publication of WO2016143140A1 publication Critical patent/WO2016143140A1/en

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
    • G05B23/0267—Fault communication, e.g. human machine interface [HMI]
    • G05B23/0272—Presentation of monitored results, e.g. selection of status reports to be displayed; Filtering information to the user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2628—Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/23—Pc programming
    • G05B2219/23163—Display enlarged, zoomed detail and small overall schematic, plan
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24103—Graphical display of proces as function of detected alarm signals

Definitions

  • the present invention relates to a display device for displaying information acquired from a control device in a monitoring system for monitoring a plant, a monitoring system provided with the display device, and a display method and display program executed by the display device.
  • the system includes a control device that controls the processes and an operator station as a human machine interface.
  • Distributed control systems are known.
  • the operator station has a function to display image content based on the status information of the plant sent from the control device.
  • image content there is, for example, a trend screen showing a temporal history of status information of devices provided in a plant. On the trend screen, it is possible to magnify and display an area selected to grasp more detailed information.
  • Patent Document 1 when the user designates and inputs a desired area on the trend screen via the input unit, a technology for enlarging and displaying the designated / inputted area Is disclosed.
  • Patent Document 1 Although it is possible to enlarge a partial region on the trend screen, for example, a plurality of regions of interest are compared or the region once enlarged is enlarged again later. It was not assumed until that, but the processing that can be executed on the trend screen was limited.
  • the present invention has been made in view of the above, and it is an object of the present invention to provide a display device, a monitoring system, a display method, and a display program capable of executing various processes on a trend screen.
  • a display device is a display unit capable of displaying an image, and a trend for generating data of a trend screen displayed in a predetermined display area of the display unit.
  • An enlarged trend screen generating unit for generating data of an enlarged trend screen, an input unit for receiving an input for setting the plurality of regions of interest and an instruction for generating the enlarged trend screen, the trend screen, the region of interest display screen
  • a display control unit for displaying the enlarged trend screen on the display unit.
  • the display device is characterized in that, in the above-mentioned invention, the enlarged trend screen generation unit generates data of the enlarged trend screen by enlarging the plurality of regions of interest and arranging them along one direction. I assume.
  • the display device is characterized in that, in the above-mentioned invention, the enlarged trend screen generation unit generates data of the enlarged trend screen by arranging the plurality of regions of interest with the same size.
  • the enlarged trend screen generation unit generates data of the enlarged trend screen by equalizing scales in directions orthogonal to the direction in which the plurality of regions of interest are arranged. It is characterized by
  • the enlarged trend screen generation unit generates data of the enlarged trend screen by enlarging and superimposing the plurality of regions of interest.
  • the trend screen displays a trend graph indicating time change of the measurement value while setting the horizontal axis as a time axis and the vertical axis as an axis of a predetermined measurement value.
  • the enlarged trend screen generation unit is characterized in that data of the enlarged trend screen is generated by changing line features in each portion of the trend graph which respectively passes through the plurality of regions of interest.
  • the trend screen displays a trend graph indicating time change of the measurement value while setting the horizontal axis as a time axis and the vertical axis as an axis of a predetermined measurement value.
  • the enlarged trend screen generation unit is configured to calculate a characteristic of a background color of a region where a difference between measured values at the same time in any two of the trend graphs passing through the plurality of regions of interest is a threshold color and a region less than the threshold Generating the data of the enlarged trend screen by changing the characteristics of the background color of the image.
  • the display device is characterized in that, in the above-mentioned invention, the plurality of regions of interest have the same area and shape as each other.
  • the display device is characterized in that, in the above-mentioned invention, the enlargement trend screen generation unit enlarges the shapes of the plurality of regions of interest while holding them.
  • the input unit can receive an instruction input for changing a position, an area or a shape in each of the plurality of regions of interest, and the region of interest display screen generation unit The position, shape, or size of the plurality of regions of interest on the region-of-interest display screen can be changed based on the instruction input received by the input unit.
  • the region-of-interest screen generation unit is configured to exclude the characteristics of the background color in the plurality of regions of interest set in the trend screen and the plurality of regions of interest in the trend screen. It generates the data of the region of interest display screen which is different from the characteristic of the background color in the non-interest region of.
  • the display device is characterized in that, in the above-mentioned invention, the characteristic of the background color is color transparency.
  • the display device is, in the above invention, communicably connected to a control device connected to a plurality of devices installed in a plant, and the display unit is a state of the plurality of devices from the control device Are obtained and displayed.
  • the display apparatus is characterized in that, in the above-mentioned invention, the trend screen displays a trend graph indicating a trend of at least one of the plurality of state information.
  • a display device includes a display unit capable of displaying an image, a trend screen generation unit generating data of a trend screen displayed in a predetermined display area of the display unit, and an interest set in the trend screen
  • a region-of-interest display screen generation unit that generates data of a region-of-interest display screen that displays regions in a discriminable manner
  • an enlarged trend screen generation unit that generates data of an enlarged trend screen in which at least the region of interest is expanded within the display region
  • An input unit for receiving an input of setting of the region of interest, an input of generation instruction of the enlarged trend screen, and an input of a bookmark registration instruction signal of the region of interest, the trend screen, the region of interest display screen, and the enlarged trend screen A display control unit to be displayed on each unit, and a bookmark registration instruction signal received by the input unit. Characterized in that and a bookmark registration unit that adds information indicating that it has been registered in the bookmark relative to the region of interest.
  • the input unit receives an input of a selection signal of the region of interest registered in the bookmark, and the information of the region of interest registered in the bookmark by the bookmark registration unit. And a region-of-interest selection unit for selecting the region of interest corresponding to the selection signal from the storage unit.
  • the region of interest display screen is a characteristic of background color in a region of interest set in the trend screen and a background in a non-interest region other than the region of interest in the trend screen. It is characterized in that it differs from the color characteristics.
  • a monitoring system includes a control device connected to a plurality of devices installed in a plant, and a plurality of states connected communicably to the control device and indicating states of the plurality of devices from the control device. And a display device as described above that acquires information and displays it on the display unit.
  • the display method according to the present invention is a display method performed by a display device provided with a display unit capable of displaying an image, and includes a trend screen display step of displaying a trend screen in a predetermined display area of the display unit; A region of interest setting step of receiving setting input of a plurality of regions of interest included in the screen; and a region of interest display screen display step of displaying information indicating the plurality of regions of interest set in the trend screen together with the trend screen; And an enlarged trend screen display step of displaying an enlarged trend screen in which the plurality of regions of interest are enlarged.
  • the display method according to the present invention is a display method performed by a display device provided with a display unit capable of displaying an image, and includes a trend screen display step of displaying a trend screen in a predetermined display area of the display unit; A region of interest setting step for receiving a setting input of a region of interest included in the screen; a region of interest display screen for displaying the region of interest display screen for identifiably displaying the region of interest; and at least the interest in the display region An enlarged trend screen display step of displaying an enlarged trend screen in which the region is enlarged; and a bookmark registration step of adding information indicating that the region of interest has been registered in the bookmark according to an input of a bookmark registration instruction signal. It is characterized by including.
  • a display program comprises a display screen provided with a display unit capable of displaying an image, a trend screen display step of displaying a trend screen in a predetermined display area of the display unit, and a plurality of display screens included in the trend screen. And a region of interest display screen displaying step of displaying information indicating a plurality of regions of interest set in the trend screen together with the trend screen, and a plurality of regions of interest An enlarged trend screen display step of displaying an enlarged enlarged trend screen is performed.
  • a display program comprises a trend screen display step of displaying a trend screen in a predetermined display area of the display unit on a display device provided with a display unit capable of displaying an image, and an interest included in the trend screen
  • a region of interest setting step of receiving a region setting input a region of interest display screen display step of displaying a region of interest display screen for identifiably displaying the region of interest, and an enlarged trend obtained by enlarging at least the region of interest in the display region
  • a bookmark registration step of adding information indicating that the region of interest has been registered in the bookmark according to an input of a bookmark registration instruction signal.
  • FIG. 1 It is a figure which shows typically the structure of the monitoring system which concerns on Embodiment 1 of this invention. It is a block diagram which shows the structure of the operator station which is a display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows typically the example of a display of the display screen for monitoring systems in the display part of the operator station which is a display apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which shows the outline
  • FIG. 1 It is a figure which shows typically the expansion / deformation process of the region of interest which the operator station which is a display apparatus which concerns on Embodiment 2 of this invention performs. It is a block diagram which shows the structure of the operator station which is a display apparatus which concerns on Embodiment 3 of this invention. It is a flowchart which shows the outline
  • FIG. 31 is a diagram showing a display example of a region of interest screen displayed when the back button is selected on the selected region of interest display screen shown in FIG. 30. It is a figure which shows the example of a display of the screen for selection when one bookmark registered interest area
  • FIG. 17 is a diagram showing a display example of a selected region of interest display screen when two bookmark registered regions of interest are selected. It is a figure which shows another display example of the region of interest display screen in the display part of the operator station which is a display apparatus which concerns on Embodiment 3 of this invention.
  • FIG. 1 is a view schematically showing a configuration of a monitoring system according to Embodiment 1 of the present invention.
  • the monitoring system 1 shown in the figure is a distributed control system (DCS: Distributed Control System) that controls and monitors processes performed in a plant P such as a steel plant, a chemical plant or a power plant.
  • the monitoring system 1 includes a plurality of control devices 2 (only two control devices 2 are shown in FIG. 1), an operator station 3, a database station 4, and a printer 5.
  • the plurality of control devices 2, the operator station 3 and the database station 4 are communicably connected via the control network 6.
  • the operator station 3, the database station 4 and the printer 5 are communicably connected via an information network 7.
  • Each of the control network 6 and the information network 7 is constituted by, for example, a communication network in which a LAN (Local Area Network), a WAN (Wide Area Network), an intranet, a public line network, a private line network and the like are appropriately combined.
  • the control device 2 is connected to measurement devices such as sensors connected to various devices (only two devices P1 and P2 are shown in FIG. 1) installed in the plant P in order to execute the process of the plant P.
  • the control device 2 includes a CPU (Central Processing Unit), and controls various devices by performing calculations based on measurement results of the measurement device.
  • PID Proportional Integral Derivative
  • the control device 2 has information on an internal instrument for controlling the process based on the measurement result of the measuring device described above.
  • internal instruments include PID control instruments, switch (on / off) instruments, power factor instruments, wind direction instruments and the like.
  • the control device 2 periodically transmits information of the internal instrument to the operator station 3 via the control network 6 as state information indicating the states of various devices to be controlled.
  • the state information includes various setting values, information (alarm) indicating an abnormality, TAG information for identifying an internal meter, and the like, in addition to the measurement results of the measuring device.
  • the control device 2 performs processing such as changing of various setting values based on an instruction signal sent from the operator station 3 via the control network 6.
  • FIG. 2 is a block diagram showing the configuration of the operator station 3.
  • the operator station 3 shown in the figure is a device for a user (an operator such as a plant manager) to check the operation state of the plant P, and functions as a display device according to the present invention.
  • the operator station 3 includes an input unit 31, a first communication unit 32, a second communication unit 33, a display unit 34, an image processing unit 35, a control unit 36, and a storage unit 37.
  • the input unit 31 is configured using a keyboard and a pointing device such as a mouse, and receives an input of various operation instruction signals from the user. It is also possible to apply a touch panel provided overlapping on the display screen of the display unit 34 as a pointing device constituting the input unit 31.
  • the first communication unit 32 transmits and receives various data to and from a plurality of control devices 2 via the control network 6 under the control of the control unit 36.
  • the information received by the first communication unit 32 from the control device 2 is stored in the storage unit 37 and stored.
  • the second communication unit 33 transmits and receives various data to and from the database station 4 and the printer 5 via the information network 7 under the control of the control unit 36.
  • the display unit 34 is configured using a display such as liquid crystal or organic EL (Electro Luminescence), and displays various information under the control of the control unit 36.
  • FIG. 3 is a view schematically showing a display example of a display screen for the monitoring system in the display unit 34. As shown in FIG.
  • the display screen 100 shown in the figure includes a menu display area 100a for displaying various menus for the user to select according to the status of the plant and the purpose of work, and a state information display for displaying state information of the device to be controlled. And a region 100b.
  • a graphic screen for displaying various information on the plant P a trend screen for trend displaying status information obtained from the devices P1 and P2 of the plant P, and a status obtained from the devices P1 and P2
  • a form screen for displaying information in the form of a form, an alarm screen for displaying alarm information output when an abnormality occurs in the plant P, and the like are displayed.
  • the image processing unit 35 generates a trend screen generating unit 351 for generating trend screen data, and a region of interest display screen for generating region of interest display screen data for displaying a plurality of regions of interest (a plurality of regions) set on the trend screen. And an enlarged trend screen generation unit 353 that generates enlarged trend screen data for enlarging and displaying a plurality of regions of interest.
  • the image processing unit 35 is realized using a CPU, various arithmetic circuits, and the like.
  • the trend screen generation unit 351 displays the state information of the device corresponding to the selected internal instrument by referring to the information received from the control device 2 via the first communication unit 32 and the information stored in the storage unit 37. Generate trend screen data.
  • the region-of-interest display screen generation unit 352 generates region-of-interest display screen data that displays the region set as the region of interest in the trend screen so as to be distinguishable from the other non-interest regions.
  • the enlarged trend screen generation unit 353 generates enlarged trend screen data in which a plurality of set regions of interest are arranged and enlarged according to predetermined layout information.
  • the control unit 36 sets a region of interest setting unit 361 that sets a region of interest on the trend screen based on the setting signal of the region of interest received by the input unit 31, and a display control unit 362 that controls display processing of the display unit 34;
  • the control parameter change unit 363 changes the control parameter of the process control performed by the control device 2 according to the input of the input unit 31.
  • Control unit 36 is configured using a CPU, various arithmetic circuits, and the like, and performs, for example, transfer of instructions and data corresponding to each unit constituting operator station 3 in accordance with various operation instruction signals input by input unit 31. Thus, the operation of the operator station 3 is controlled centrally. It is also possible to configure the image processing unit 35 and the control unit 36 using a common CPU.
  • the storage unit 37 includes a state information storage unit 371, a region of interest information storage unit 372, a layout information storage unit 373 and a program storage unit 374.
  • the state information storage unit 371 stores a plurality of state information that the first communication unit 32 periodically receives from the control device 2. Under the control of the control unit 36, the state information storage unit 371 updates the information stored each time a plurality of state information is received, and also sends the previous information to the database station 4 via the second communication unit 33. You may make it transmit.
  • the region-of-interest information storage unit 372 stores information necessary when the enlargement trend screen generation unit 353 generates enlargement trend screen data.
  • Such information includes, for example, information on the position and size (length and width) of the region of interest set by the region of interest setting unit 361.
  • the information of the region of interest set by the region of interest setting unit 361 is automatically deleted when the enlarged trend screen data based on the information is generated by the enlarged trend screen generation unit 353. It is also good. That is, the region-of-interest information storage unit 372 may temporarily store information on the region of interest until the enlarged trend screen generation unit 353 generates the enlarged trend screen.
  • the layout information storage unit 373 stores layout information when the enlargement trend screen generation unit 353 generates enlargement trend screen data.
  • the layout information stored in the layout information storage unit 373 is, for example, information on the arrangement of a plurality of regions of interest, vertical and horizontal scales, information on the range of values to be displayed, and information on colors of graphs to be displayed.
  • the arrangement of the plurality of regions of interest includes, for example, the arrangement in vertical alignment, the arrangement in horizontal alignment, and the arrangement in which a plurality of regions of interest are superimposed.
  • the program storage unit 374 includes the display program according to the first embodiment, and stores various programs for operating the operator station 3 and various data used during execution of the various programs.
  • the program stored in the program storage unit 374 can also be recorded on a computer readable recording medium.
  • the program may be recorded in the recording unit or the recording medium when the computer or the recording medium is shipped as a product, or may be downloaded through a communication network.
  • the storage unit 37 is a ROM (Read Only Memory) in which a display program according to the first embodiment and a program for starting up a predetermined OS are installed in advance, and a RAM (Random) storing operation parameters and data of each process. It is realized using an Access Memory or the like.
  • the various programs described above can also be acquired by downloading via a communication network.
  • the communication network mentioned here is realized by, for example, an existing public network, LAN, WAN or the like, and may be wired or wireless.
  • the operator station 3 having the above configuration may be realized using one computer or may be realized using a plurality of computers. In the latter case, it is possible to perform processing in cooperation with each other while transmitting and receiving data via a communication network.
  • the computer can be configured by a general-purpose personal computer, a server or the like.
  • the operator station 3 is constructed by a client server system comprising a plurality of computers via a communication network, while the client terminal is provided with the functions of the input unit 31 and the display unit 34, the image processing unit 35 controls The functions of the unit 36 and the storage unit 37 may be distributed to one or more servers.
  • the database station 4 is an apparatus for accumulating data transmitted from the control apparatus 2 via the control network 6, and is an apparatus for storing alarm history information on plant P and trend information on numerical values for a long period of time .
  • the database station 4 also transmits and receives data to and from the operator station 3 via the information network 7.
  • the printer 5 acquires and prints various data stored in the operator station 3 and the database station 4 based on an instruction signal of the operator station 3 transmitted via the information network 7.
  • FIG. 4 is a flowchart showing an outline of processing of a display method performed by the operator station 3 which is the display device according to the first embodiment.
  • FIG. 4 shows an outline of processing (hereinafter referred to as trend screen display processing) when display of a trend screen for a plurality of predetermined internal instruments in a predetermined period is selected in the operator station 3.
  • the trend screen generation unit 351 generates trend screen data that displays temporal changes such as measured values (PV: Process Variable) included in the state information of the device corresponding to the internal instrument set as the display target. (Step S1).
  • the trend screen generation unit 351 requests the control device 2 via the first communication unit 32 for information required to generate trend screen data. Thereafter, the trend screen generation unit 351 generates trend screen data based on the information acquired from the control device 2 and the information stored in the state information storage unit 371. Note that part of the information necessary for the trend screen data may be acquired from the database station 4.
  • the display control unit 362 causes the display unit 34 to display a trend screen corresponding to the trend screen data generated by the trend screen generation unit 351 (step S2).
  • FIG. 5 is a view showing a display example of the trend screen on the display unit 34.
  • the trend screen 101 shown in the figure displays a trend graph 201 which is a curve indicating the temporal trend of a certain internal instrument.
  • the horizontal axis t of the trend graph 201 is time, and the vertical axis PV is a measured value.
  • the number of trend graphs to be displayed is not limited to this.
  • step S4 when the input unit 31 receives the input of the start instruction signal of the enlargement process (step S3: Yes), the operator station 3 performs the enlargement process (step S4).
  • the start instruction signal is input by moving the mouse pointer to a desired position on the trend screen by operating the mouse of the input unit 31 and then clicking the mouse button.
  • step S11 the operator station 3 initializes a counter n indicating the number of regions of interest to 1 (step S11).
  • step S12 Yes
  • the operator station 3 proceeds to step S13.
  • the selection input operation of the first region of interest when the counter n is 1 is realized by the drag operation of the mouse.
  • This drag operation is, for example, the same as the operation performed when enlarging the area of a window displayed on a display monitor provided in a normal personal computer.
  • the first region of interest is defined as a rectangular region whose diagonals are the start and end points of the mouse pointer.
  • the selection input at the time of setting the nth region of interest when the counter n is 2 or more is realized, for example, by the user arranging the mouse pointer at a desired position and performing a click operation.
  • a region having the same shape and area as the first region of interest around the position of the mouse pointer is set as the nth region of interest.
  • step S13 the region-of-interest setting unit 361 sets the n-th region of interest on the trend screen based on the selection input of the n-th region of interest accepted by the input unit 31 (step S13). It is temporarily stored in the information storage unit 372.
  • the region-of-interest display screen generation unit 352 refers to the region-of-interest information storage unit 372 and generates whole region-of-interest display screen data that displays all the set regions of interest (step S14).
  • FIG. 7 is a diagram showing a display example of the entire region of interest display screen when the counter n is 1.
  • the entire region of interest display screen 102 shown in FIG. 7 displays a rectangular first region of interest 251 set so as to pass through a part of the trend graph 201.
  • FIG. 8 is a diagram showing a display example of the entire region of interest display screen when the counter n is two.
  • the trend graph 201 passes at a position separated to such an extent that it does not intersect the first region of interest 251.
  • a second region of interest 252 having the same size and shape is displayed.
  • FIG. 9 is a diagram showing a display example of the entire region of interest display screen when the counter n is three.
  • the entire region of interest display screen 104 shown in FIG. 9 is a trend at a position separated to such an extent that the first region of interest 251 and the second region of interest 252 do not intersect.
  • a graph 201 has passed through and displays a third region of interest 253 having the same size and shape as the first region of interest 251.
  • step S16 After the entire region of interest display screen is displayed on the display unit 34 in step S15, the operator station 3 performs a process of increasing the counter n by 1 (step S16).
  • step S17 differs depending on whether the input unit 31 receives an input of the selection confirmation signal of the region of interest.
  • the input of the selection confirmation signal is realized by, for example, a click operation of a mouse.
  • step S17 when the input unit 31 receives the input of the selection confirmation signal of the region of interest (step S17: Yes), the enlargement trend screen generation unit 353 arranges and enlarges all the regions of interest according to predetermined layout information. The enlarged trend screen data to be displayed is generated (step S18).
  • the enlarged trend screen generation unit 353 arranges and enlarges the entire region of interest vertically or horizontally with reference to the layout information stored in the layout information storage unit 373.
  • the layout information storage unit 373 stores in advance in which direction the lines are to be arranged and enlarged. The user may select the layout of the entire region of interest by clicking the mouse after the menu related to the layout is displayed on the screen by right-clicking the mouse or the like.
  • FIG. 10 is a diagram illustrating a first example of the enlarged trend screen generated by the enlarged trend screen generation unit 353.
  • the enlarged trend screen 105 shown in the figure is a screen in which the first region of interest 251 and the second region of interest 252 in the entire region of interest display screen 103 are arranged vertically and enlarged and displayed, and the upper enlarged trend graph 211 is The enlarged trend graph 201 in the first region of interest 251 is enlarged, and the lower enlarged trend graph 221 is an enlarged graph of the trend graph 201 in the second region of interest 252.
  • the enlargement ratio of the first region of interest 251 and the second region of interest 252 is larger than the enlargement ratio of the vertical direction.
  • the vertical and horizontal ratio of the first region of interest 251 and the second region of interest 252 may be enlarged and displayed as it is on the entire region of interest display screen. Further, additional information such as parameter values corresponding to the displayed enlarged trend graph may be displayed in the menu display area 100a shown in FIG.
  • FIG. 11 is a diagram illustrating a second example of the enlarged trend screen generated by the enlarged trend screen generation unit 353.
  • the enlarged trend screen 106 shown in the figure is a screen in which the first region of interest 251 and the second region of interest 252 in the entire region of interest display screen 103 are arranged side by side and enlarged and displayed.
  • the enlargement trend graph 212 on the left is an enlargement of the trend graph 201 in the first region of interest 251
  • the enlargement trend graph 222 on the right is an enlargement of the trend graph 201 in the second region of interest 252.
  • the enlargement ratio of the first region of interest 251 and the second region of interest 252 is larger than the enlargement ratio of the horizontal direction.
  • the enlarged display may be performed while keeping the horizontal to vertical ratio of the first region of interest 251 and the second region of interest 252 the same as on the entire region of interest display screen.
  • FIG. 12 is a diagram illustrating a third example of the enlarged trend screen generated by the enlarged trend screen generation unit 353.
  • the enlarged trend screen 107 shown in the figure is a screen in which the first region of interest 251, the second region of interest 252, and the third region of interest 253 in the entire region of interest display screen 104 are arranged side by side and enlarged and displayed.
  • the enlargement trend graph 213 on the left is an enlargement of the trend graph 201 in the first region of interest 251, and the enlargement trend graph 223 in the center is an enlargement of the trend graph 201 in the second region of interest 252.
  • the enlargement trend graph 231 is an enlargement of the trend graph 201 of the third region of interest 253.
  • the enlargement display may be performed while keeping the horizontal to vertical ratio of the first region of interest 251, the second region of interest 252, and the third region of interest 253 the same as on the entire region of interest display screen.
  • FIG. 13 is a diagram illustrating a fourth example of the enlarged trend screen generated by the enlarged trend screen generation unit 353.
  • the enlarged trend screen 108 shown in the figure is a screen in which the first region of interest 251 and the second region of interest 252 in the entire region of interest display screen 103 are superimposed and enlarged and displayed.
  • the enlargement trend graph 214 shown by a solid line is an enlargement of the trend graph 201 in the first region of interest 251
  • the enlargement trend graph 224 shown by a broken line is an enlargement of the trend graph 201 in the second region of interest 252 It is.
  • the enlarged display may be performed while keeping the horizontal to vertical ratio of the first region of interest 251 and the second region of interest 252 the same as on the entire region of interest display screen.
  • step S17 No
  • the operator station 3 returns to step S12.
  • step S12: No when the input unit 31 does not receive the selection input of the first region of interest in step S12 (step S12: No), when the input unit 31 receives an input of a signal for ending the enlargement process (step S19: Yes), the operator Station 3 ends the enlargement process and returns to the main routine. On the other hand, when the input unit 31 does not receive the input of the signal for ending the enlargement process in step S19 (step S19: No), the operator station 3 returns to step S12.
  • step S4 when the enlargement trend screen data is generated and exists (step S5: Yes), the display control unit 362 causes the display unit 34 to display the enlargement trend screen (step S6).
  • step S6 for example, an enlarged trend screen as shown in FIGS. 10 to 13 is displayed.
  • step S7: Yes the operator station 3 ends the trend screen display process.
  • step S7: No the operator station 3 repeats step S7.
  • step S8 determines whether the state information stored in the state information storage unit 371 is updated (step S8). As a result of the determination, if the state information is updated (step S8: Yes), the operator station 3 returns to step S1. On the other hand, as a result of the determination, when the state information is not updated (step S8: No), the operator station 3 proceeds to step S9.
  • step S9 when the input unit 31 receives the input of the instruction signal for ending the trend display (step S9: Yes), the operator station 3 ends the trend screen display process. On the other hand, when the input unit 31 does not receive the input of the instruction signal for ending the trend display (step S9: No), the operator station 3 returns to step S8.
  • the information indicating a plurality of different regions of interest set in the trend screen is displayed together with the trend graph, and the selection of the plurality of regions of interest is determined.
  • a variety of processes can be performed on the trend screen in order to expand and display the region of interest.
  • a plurality of regions of interest are enlarged and displayed side by side along one direction, which facilitates comparison.
  • the user can perform the setting of two regions of interest and the generation of the enlarged trend screen only by performing the mouse operation twice. Therefore, it is not necessary to repeat the enlargement and reduction operations multiple times, and it is possible to view the desired enlargement trend screen with only a simple operation.
  • FIG. 14 is a view showing a display example of the enlarged trend screen in the first modification of the first embodiment.
  • the enlarged trend screen 109 shown in the figure changes and displays the line type of the trend curve according to the magnitude relationship between the measured value and the predetermined threshold value.
  • a portion which is equal to or less than the threshold TH is displayed by a broken line.
  • the threshold referred to here may be, for example, the boundary between the normal range and the abnormal range in the measurement value.
  • the color of the line may be changed and displayed instead of changing the line type according to the magnitude with the threshold value, or both of the line type and the color of the line may be changed and displayed.
  • the user can visually recognize the magnitude with the threshold, and it is possible to perform more accurate determination.
  • FIG. 15 is a diagram showing a display example of the enlarged trend screen in the second modification of the first embodiment. Similar to the case shown in FIG. 11, the enlarged trend screen 110 shown in the figure superimposes and displays the trend graphs in the two regions of interest. In the enlarged trend screen 110, in order to emphasize the area where the difference between the values of the two enlarged trend graphs 214 and 224 is large, the area with the difference between the values below a predetermined value is displayed with different characteristics of the mask or background color. . In FIG. 15, the masked area is indicated by diagonal lines.
  • the user can easily recognize an area having a large difference between the two trend curves to be compared, so that accurate determination can be performed easily and quickly.
  • FIG. 16 is a diagram showing a display example of the entire region of interest display screen in the third modification of the first embodiment.
  • the sizes and shapes of two regions of interest passing through the trend graph 201 are different, specifically, the area of the first region of interest 251 is more than the second region of interest 254 The area is small and the aspect ratio is also different.
  • the size and shape of the plurality of regions of interest can be set individually.
  • the size and shape of the region of interest are changed by positioning the mouse pointer near the boundary of the region of interest once determined by the user and dragging the mouse.
  • FIG. 17 is a diagram showing a display example (first example) of the enlarged trend screen in the third modification.
  • the enlarged trend screen 112 shown in the figure when displaying the first region of interest and the second region of interest vertically, the vertical and horizontal scales of the two trend graphs are displayed in common. Therefore, the enlarged trend graph 215 obtained by enlarging the trend graph 201 in the first region of interest 251 has less data volume than the enlarged trend graph 225 obtained by enlarging the trend graph 201 in the second region of interest 254.
  • the scale of the horizontal axis that is, the time axis may be changed as appropriate by the operation input from the input unit 31. In addition, it may be displayed such that the lengths of the two vertical axes PV1 and PV2 become equal.
  • FIG. 18 is a diagram showing a display example (second example) of the enlarged trend screen in the third modification.
  • the enlarged trend screen 113 shown in the figure when displaying the first region of interest and the second region of interest side by side, the scales of the horizontal axes of the two trend graphs, that is, the time axes are displayed in common. Therefore, the enlarged trend graph 216 obtained by enlarging the trend graph 201 in the first region of interest 251 has a smaller amount of data than the enlarged trend graph 226 obtained by enlarging the trend graph 201 in the second region of interest 254, and the horizontal axis is displayed shorter. .
  • FIG. 18 is a diagram showing a display example (second example) of the enlarged trend screen in the third modification.
  • the scales of the two vertical axes are common, it is preferable to compare the rates of change of the two enlarged trend graphs 216 and 226.
  • the vertical axes of the two trend graphs arranged side by side that is, the axes indicating the measured values may be identical.
  • the scale of the vertical axis may be changed as appropriate by the operation input from the input unit 31.
  • the area of the trend graph display area in the screen may be different according to the aspect ratio of the first area of interest and the second area of interest.
  • the setting of the region of interest can be performed more flexibly.
  • the second embodiment of the present invention can execute various processes on a trend screen in a display device provided in a monitoring system, and in particular, can easily and accurately compare different regions of interest.
  • the purpose is to flexibly set the area of interest.
  • the second embodiment is characterized in that the position, size, and shape of the region of interest can be changed when setting the region of interest.
  • the display device according to the second embodiment has a configuration similar to that of the operator station 3 described in the first embodiment, and forms a part of the monitoring system 1.
  • the same components as the components of the monitoring system 1 will be described with the same reference numerals as in FIGS. 1 and 2.
  • step S4 The outline of the trend screen display process executed by the operator station 3 which is the display device according to the second embodiment is the same as the flowchart shown in FIG. 4, but the contents of the enlargement process (step S4) are different.
  • the outline of the enlargement process performed by the operator station 3 will be described below with reference to the flowchart shown in FIG.
  • the processes of steps S31 to S37 shown in FIG. 19 sequentially correspond to the processes of steps S11 to S17 shown in FIG.
  • step S32: No the operator station 3 transfers to step S41 mentioned later.
  • step S38 when the input unit 31 receives an input of a change start instruction signal of a region of interest (step S38: Yes), the operator station 3 performs a region of interest change process (step S39).
  • FIG. 20 is a flowchart showing an outline of the region-of-interest change process performed by the operator station 3.
  • the region of interest setting unit 361 changes the region of interest, and stores the changed information in the region of interest information storage unit 372 (Step S52).
  • the region-of-interest display screen generation unit 352 updates the entire region-of-interest display screen data with reference to the region-of-interest information storage unit 372 (step S53).
  • the display control unit 362 causes the display unit 34 to display an all-interest area display screen corresponding to the updated all-interest area display screen data (step S54).
  • FIG. 21 is a diagram schematically showing movement processing of a region of interest as an example of the region of interest change processing.
  • the trend display area 301 shown in the figure includes a first area of interest 302 and a second area of interest 303.
  • a region 302a indicated by a broken line virtually shows the position and the size of the first region of interest 302 before the change.
  • description of a trend graph etc. is abbreviate
  • the user moves the first region of interest 302 by placing the mouse pointer M near the outer edge of the initial position (region 302a) of the first region of interest 302 and then dragging and dropping the mouse in the lower right direction.
  • Shows the display state after the This movement operation is similar to the movement operation of the window on the monitor of the personal computer.
  • the characters "Continue” are displayed, and buttons "Yes” and “No” are displayed.
  • the user aligns the mouse pointer M with the “Yes” button and clicks the mouse when he / she desires to change other regions of interest.
  • the user aligns the mouse pointer M with the “No” button and clicks the mouse.
  • FIG. 22 is a diagram schematically showing enlargement / deformation processing of the region of interest as another example of the processing of changing the region of interest.
  • the user moves the mouse pointer to the lower right vertex of the boundary of the second region of interest 303 with respect to the trend display area 301 shown in FIG. 2 shows the display state after changing to the second region of interest 303 a by enlarging while changing the shape of the region of interest 303.
  • this enlargement / deformation operation is similar to the operation of enlarging / deforming the window on the monitor of the personal computer.
  • FIG. 22 is a diagram schematically showing enlargement / deformation processing of the region of interest as another example of the processing of changing the region of interest.
  • Step S55: Yes the operator station 3 returns to Step S51.
  • the input unit 31 does not receive the input of the instruction to continue selection and receives the input of the end instruction signal (Step S55: No)
  • the operator station 3 ends the region of interest change processing.
  • step S51 when the input unit 31 does not receive the input of the change instruction signal of the region of interest (step S51: No), the operator station 3 proceeds to step S56.
  • step S56 when the input unit 31 receives an input of a signal for ending the region of interest change processing (step S56: Yes), the operator station 3 ends the region of interest change processing and returns to the main routine. On the other hand, when the input unit 31 does not receive the input of the signal for ending the region of interest change processing in step S56 (step S56: No), the operator station 3 returns to step S51.
  • the enlarged trend screen generation unit 353 After the region of interest change processing (step S39) described above, the enlarged trend screen generation unit 353 generates enlarged trend screen data in which the region of interest is expanded to the entire trend display region (step S40).
  • the enlarged trend screen in this case may be displayed by changing the display area of each region of interest according to the size of each region of interest, or the display region of each area of interest may be equally divided and displayed.
  • step S38 when the input unit 31 does not receive the input of the change start instruction signal of the region of interest (step S38: No), the operator station 3 proceeds to step S40.
  • step S41 when the input unit 31 receives an input of a signal for ending the enlargement process (step S41: Yes), the operator station 3 ends the enlargement process and returns to the main routine. On the other hand, when the input unit 31 does not receive the input of the signal for ending the enlargement process in step S41 (step S41: No), the operator station 3 returns to step S32.
  • FIG. 23 is a block diagram showing a configuration of an operator station which is a display device according to Embodiment 3 of the present invention.
  • the operator station 8 shown in the figure has the same configuration as that of the operator station 3 described in the first embodiment except for the configurations of the control unit 81 and the storage unit 82 (see FIG. 2).
  • the operator station 8 forms a part of the monitoring system according to the third embodiment.
  • the monitoring system according to the third embodiment has the same configuration as the monitoring system 1 according to the first embodiment except for the operator station.
  • the same components as the components of the monitoring system 1 will be described with the same reference numerals as in FIGS. 1 and 2.
  • the control unit 81 includes a region of interest setting unit 361, a display control unit 362, a control parameter changing unit 363, a bookmark registration unit 811 and a region of interest selection unit 812.
  • the bookmark registration unit 811 has a function of adding information indicating that the region of interest has been registered in the bookmark.
  • the region of interest selection unit 812 selects a region of interest from among the regions of interest registered in the bookmark based on the selection signal received by the input unit 31.
  • the storage unit 82 includes a state information storage unit 371, a region of interest information storage unit 372, a layout information storage unit 373, a program storage unit 374, and a bookmark information storage unit 821.
  • the bookmark information storage unit 821 stores information of the regions of interest registered in the bookmark based on the registration instruction signal received by the input unit 31 among the regions of interest set by the region of interest setting unit 361.
  • the bookmark registration unit 811 adds the bookmark registration information to the information of the corresponding region of interest, It is stored in the information storage unit 821.
  • the region of interest information to which the bookmark registration information is added is stored in the bookmark information storage unit 821 even after the enlargement trend screen generation unit 353 generates the enlargement trend screen data.
  • FIG. 24 is a flowchart showing an outline of a display method executed by the operator station 8 which is a display device according to the third embodiment.
  • the process of generating trend screen data (step S61) and the process of displaying a trend screen (step S62) correspond to steps S1 and S2 in FIG. 4, respectively.
  • the operator station 8 shifts to different processing depending on whether or not the input unit 31 receives the input of the start instruction signal of the region of interest selection processing in which the bookmark has been registered (step S63).
  • step S63: No the case where the input unit 31 does not receive the input of the start instruction signal of the region of interest selection processing in which the bookmark registration has been performed in step S63 will be described (step S63: No).
  • step S64: Yes when the input unit 31 receives the input of the start instruction signal of the enlargement process (step S64: Yes), the operator station 8 performs the enlargement process (step S65).
  • the start instruction signal is input by clicking the mouse button after the user moves the mouse pointer to a desired position on the trend screen by operating the mouse of the input unit 31. .
  • step S64: No the operator station 8 shifts to step S67 described later.
  • step S65 The outline of the enlargement process (step S65) performed by the operator station 8 will be described below with reference to the flowchart shown in FIG.
  • the process of steps S81 to S87 sequentially corresponds to the process of steps S11 to S17 shown in FIG.
  • step S82: No the operator station 8 proceeds to step S91 described later.
  • step S88 when the input unit 31 receives an input of a bookmark registration instruction signal of the region of interest for which selection has been determined (step S88: Yes), the operator station 3 bookmarks the corresponding region of interest.
  • FIG. 26 is a flowchart showing the details of the process of bookmarking a region of interest. In the following description, it is assumed that the number of regions of interest for which selection has been determined is N ( ⁇ 1). First, the operator station 8 initializes a counter n indicating the number of regions of interest to 1 (step S101).
  • FIG. 27 is a diagram showing a display example of a registration confirmation screen displayed by the display unit 34.
  • FIG. 27 is a view showing a display example of a registration confirmation screen for the first region of interest 251 in the entire region of interest display screen 103 shown in FIG.
  • the boundary of the first region of interest 251 is described with a thicker line than the boundary of the second region of interest 252.
  • a registration confirmation display unit 401 is displayed.
  • the registration confirmation display unit 401 displays a sentence "Do you want to register?" And displays buttons "Yes” and "No". When the user aligns the mouse pointer M with either of these two buttons and clicks the mouse, input of a signal according to the display of “Yes” or “No” is accepted.
  • the bookmark registration unit 811 adds the bookmark registration information to the information of the nth region of interest, and the bookmark information storage unit 821 A registration process for storing the image data is performed (step S104).
  • step S105 the operator station 8 performs a process of increasing the counter n by 1 (step S105).
  • step S103 the operator station 8 performs the process of step S105.
  • step S105 the operator station 8 determines whether the counter n is equal to or less than the number N of the selected regions of interest (step S106). If the counter n is less than or equal to N (step S106: Yes), the operator station 8 returns to step S102. On the other hand, when the counter n is larger than N (step S106: No), the operator station 8 ends the bookmark registration process.
  • the enlarged trend screen generation unit 353 generates enlarged trend screen data of the determined region of interest (step S90). Thereafter, the operator station 8 ends the enlargement process and returns to the main routine.
  • step S88 when the input unit 31 does not receive the input of the bookmark registration instruction signal of the region of interest (step S88: No), the operator station 8 proceeds to step S90.
  • step S91 when the input unit 31 receives an input of a signal for ending the enlargement process (step S91: Yes), the operator station 8 ends the enlargement process and returns to the main routine. On the other hand, when the input unit 31 does not receive the input of the signal for ending the enlargement process in step S91 (step S91: No), the operator station 8 returns to step S82.
  • step S65 A process following the enlargement process of step S65 described above will be described again with reference to FIG. After the enlargement processing in step S65, if the enlargement trend screen data is generated and exists (step S66: Yes), the operator station 8 shifts to step S72 described later.
  • step S66 determines whether the state information stored in the state information storage unit 371 is updated (step S66) S67). As a result of the determination, if the state information is updated (step S67: Yes), the operator station 8 returns to step S61. On the other hand, as a result of the determination, when the state information is not updated (step S67: No), the operator station 8 shifts to step S68.
  • step S68 when the input unit 31 receives the input of the instruction signal for ending the trend screen display (step S68: Yes), the operator station 8 ends the trend screen display processing. On the other hand, when the input unit 31 does not receive the input of the instruction signal for ending the trend screen display (step S68: No), the operator station 8 returns to step S67.
  • step S63 Yes
  • the operator station 8 performs a region of interest selection process (step S69).
  • FIG. 28 is a flowchart showing an outline of the region of interest selection process.
  • the display control unit 362 causes the display unit 34 to display a selection screen for selecting a region of interest registered as a bookmark (step S111).
  • FIG. 29 is a view showing a display example of the selection screen on the display unit 34.
  • the selection screen 501 shown in FIG. 29 displays a menu of dates and times corresponding to the start points of a plurality of bookmark registered interest regions.
  • the selection screen 501 displays the menu designated by the mouse pointer M in a distinguishable manner.
  • FIG. 29 illustrates a state in which the menu “2. 2013/5/20 18:30” is selected among the plurality of menus indicating the region of interest registered as a bookmark.
  • the date and time indicate information on the start point of the corresponding region of interest.
  • the change of the menu is performed, for example, by the user operating the mouse wheel or the keyboard.
  • the input unit 31 receives the selection input of the region of interest corresponding to the menu “2. 2013/5/20 18:30”.
  • the region of interest selection unit 812 acquires information of the selected region of interest from the bookmark information storage unit 821. It outputs to the region-of-interest display screen generation unit 352 (step S113).
  • the region of interest display screen generation unit 352 generates selected region of interest display screen data based on the information of the region of interest output from the region of interest selection unit 812 (step S114). Thereafter, the display control unit 362 causes the display unit 34 to display a selected region of interest display screen corresponding to the selected region of interest display screen data generated in step S114 (step S115). This allows the user to browse a desired region of interest out of the bookmarked regions of interest.
  • FIG. 30 is a diagram showing a display example of the selected region of interest display screen.
  • the selected region of interest display screen 502 shown in the figure is displayed in the trend display region, and has a title display region 511 and a trend display region 521.
  • a title display area 511 in addition to date and time information ("2. 2013/5/20 18:30") of the start point of the selected region of interest, an enlargement button 512, a back button 513, and a forward button 514 are displayed.
  • the region of interest 522 is located at the center of the trend display region 521. In the lower part of the trend display area 521, the characters “Continue” are displayed and buttons “Yes” and "No” are displayed.
  • the user aligns the mouse pointer M with the “Yes” button and clicks the mouse.
  • the user aligns the mouse pointer M with the “No” button and clicks the mouse.
  • the trend graph and the like are omitted. Note that instead of displaying the date and time information of the start point of the region of interest in the title, the title set by the user and the TAG information of the internal instrument may be displayed.
  • the enlargement button 512 has a function of receiving an input of an enlargement instruction signal of a region of interest being displayed.
  • an enlargement trend screen of the region of interest is generated.
  • the display instruction of the enlarged trend screen may be input by placing the mouse pointer inside the region of interest and performing an operation such as click or double click.
  • FIG. 31 is a view showing a display example of a region of interest screen displayed when the back button 513 is selected on the selected region of interest display screen 502 shown in FIG.
  • the region of interest display screen 503 shown in FIG. 31 has a title display region 531 and a trend display region 541.
  • the title display area 531 displays an enlargement button 532, a back button 533, and a forward button 534.
  • the region of interest 542 is located at the center of the trend display region 541. Also in FIG. 31, the trend graph etc. is omitted and described.
  • a forward button 514 receives an instruction input to shift the display to a region of interest registered one later. For example, in the selected region of interest display screen 502 shown in FIG. 30, when the forward button 514 is selected, the region of interest display screen corresponding to the menu "3. 2014/1/15 9:00" in the selection screen of FIG. It will be displayed on the display unit 34.
  • Step S116: Yes the operator station 8 returns to Step S112.
  • the operator station 8 ends the region-of-interest selection process.
  • step S112 when the input unit 31 receives a selection input of a region of interest registered as a bookmark (step S112: No), the operator station 8 proceeds to step S117.
  • step S117 when the input unit 31 receives an input of a signal for ending the region of interest selection processing (step S117: Yes), the operator station 8 ends the region of interest selection processing and returns to the main routine. On the other hand, when the input unit 31 does not receive the input of the signal for ending the region of interest change processing in step S117 (step S117: No), the operator station 8 returns to step S112.
  • FIG. 32 is a diagram showing a display example of the selection screen when one bookmark registered interest region is already selected.
  • the selected menu “2.2013 / 5/20 18:30” is surrounded by bold face among the plurality of menus.
  • the menu “4. 2014/4/10 15: 25” is selected in the state shown in FIG. 32, two regions of interest are displayed on the selected region of interest display screen.
  • FIG. 33 is a diagram showing a display example of a selected region of interest display screen on the display unit 34 when two bookmark registered regions of interest are selected.
  • the selected region of interest display screen 505 shown in FIG. 33 is displayed in the trend display region, and has two title display regions 551 and 552 and two trend display regions 553 and 554.
  • date and time information ("2. 2013/5/20 18:30") of the start point of the first selected interest area is displayed, and in the title display area 552, the second is selected.
  • the date and time information (“4. 2014/4/10 15: 25" of the start point of the region of interest is displayed.
  • the trend display area 553 displays a first selected first interest area 555 (corresponding to the interest area 522 in FIG. 30).
  • the second selected second interest area 556 is displayed. Also in the selected region of interest display screen 505, the characters “Continue” are displayed and buttons “Yes” and “No” are displayed. Thereafter, every time the selection of the region of interest is repeated, the selected region of interest display screen displays all the selected regions of interest. The first selected one may be displayed below, or two regions of interest may be displayed side by side. Also, the display positions of these characters and buttons are not limited to those shown in FIG. In addition, an enlargement button, a back button, and a forward button may be displayed in the title display areas 551 and 552 so that the region of interest registered as a bookmark can be switched by selection.
  • step S69 region expansion instruction signal after the region of interest selection processing
  • step S70: Yes the operator station 8 proceeds to step S71.
  • step S71 the input unit 31 does not receive the input of the instruction to expand the region of interest
  • step S74 the operator station 8 proceeds to step S74.
  • the input unit 31 receives the input of the enlargement instruction signal of the region of interest (step S70: Yes)
  • the enlarged trend screen generation unit 353 generates enlarged trend screen data in which the region of interest is expanded over the entire trend display region (step S71).
  • the display control unit 362 causes the display unit 34 to display the enlarged trend screen (step S72).
  • a display may be added to identify whether the enlarged trend screen is bookmarked or not.
  • step S72 when the input unit 31 receives the input of the instruction signal for ending the trend display (step S73: Yes), the operator station 8 ends the trend screen display process. On the other hand, when the input unit 31 does not receive the input of the instruction signal for ending the trend display in step S73 (step S73: No), the operator station 8 repeats step S73.
  • step S70: No the case where the input unit 31 does not receive the input of the enlargement instruction signal of the region of interest (step S70: No) will be described.
  • step S74: Yes the operator station 8 returns to step S69.
  • the region of interest selection processing in step S69 is performed from the initialized state, the region of interest selected in the previous region of interest selection processing is displayed in a distinguishable state on the selection screen. You may do so.
  • Step S74: No when the input unit 31 does not receive the change instruction input of the region of interest (Step S74: No) when the input unit 31 does not receive the input of the instruction to expand the region of interest at Step S70 (Step S70: No), the operator station 8 shifts to step S67.
  • the user can store the desired region of interest not temporarily, by having the bookmark registration function. Can. Further, according to the third embodiment, by having a function of selecting and browsing the bookmarked region of interest, it is possible to effectively utilize the region of interest selected in the past and perform one-step and fine-grained monitoring. Is possible.
  • FIG. 34 is a diagram showing a display example of the region of interest display screen in this case.
  • the region of interest display screen 506 shown in the figure has a title display area 561 and a trend display area 571.
  • an enlargement button 562 in addition to the date and time information ("3. 2014/1/15 9:00") of the start point of the selected region of interest, an enlargement button 562, a back button 563 and a forward button 564 are displayed. .
  • the trend display area 571 in addition to the selected area of interest 572, two areas of interest 573 and 574 bookmarked in the vicinity thereof are simultaneously displayed.
  • the user can more efficiently obtain information on a region of interest selected and bookmarked in the past.
  • the region of interest 572 may be displayed in a thick frame or the like to differentiate it from the other regions of interest 573 and 574, and the region of interest 572 selected by the user may be clearly indicated. . In this case, it is not necessary to center the region of interest selected by the user in the trend display area.
  • FIG. 34 described so far illustrates the case where the region of interest 572 and the regions of interest 573 and 574 do not overlap.
  • the regions of interest overlap the whole can be set as a unique region of interest by placing the mouse pointer on a portion not overlapping with the other and clicking. Further, one of the overlapped regions of interest may be enlarged and displayed by performing the same operation.
  • the overlapping region of interest is clicked, only the overlapping portion may be set as a new region of interest, or one region of interest is selected from the overlapping regions of interest and enlarged.
  • a selection screen for setting may be displayed to prompt the user to make a selection.
  • the bookmark information storage unit 821 may be provided in the database station 4. In this case, by appropriately communicating with the database station 4 through the second communication unit 33, the display method described above is realized.
  • Embodiment 4 The fourth embodiment of the present invention can execute various processes on the trend screen in the display device included in the monitoring system, and in particular, can easily and accurately compare different regions of interest. The purpose is to make it possible to accurately grasp the area of interest.
  • the fourth embodiment of the present invention is characterized in having a configuration for more accurately grasping a region to be enlarged when expanding a plurality of regions of interest.
  • the display device according to the fourth embodiment has a configuration similar to that of the operator station 3 described in the first embodiment, and forms a part of the monitoring system 1.
  • the same components as the components of the monitoring system 1 will be described with the same reference numerals as in FIG.
  • the region-of-interest display screen generation unit 352 generates background color characteristic change screen data by changing the characteristic of the background color of the trend display region.
  • the characteristics of the background color changed by the region-of-interest display screen generation unit 352 include, for example, one of transparency, three hues of light, saturation, lightness, or a plurality of transparency and light three attributes. A combination can be mentioned.
  • FIG. 35 is a flowchart showing an outline of processing of a display method performed by the display device according to the fourth embodiment.
  • FIG. 35 shows an outline of the trend screen display process performed by the operator station 3.
  • FIG. 36 is a view showing a display example of the trend screen on the display unit 34.
  • the trend screen 601 shown in the figure displays the trends of the three internal instruments A, B, and C.
  • the trend screen 601 has a title display area 611, a numerical information display area 612, and a trend display area 613.
  • a title "trend screen” is displayed in the title display area 611.
  • a title "trend screen” is displayed.
  • numerical information display area 612 for example, numerical information such as the latest measurement value (PV) of each internal instrument, a data acquisition period, a measurement period, and a vertical ruled line interval is displayed.
  • PV latest measurement value
  • a vertical scroll bar 617 for scrolling the display range vertically and horizontally and A horizontal scroll bar 618 is displayed.
  • the number of trends to be displayed is not limited to this.
  • step S132 when the input unit 31 receives an input of a start instruction signal of enlargement processing (step S133: Yes), the operator station 3 performs enlargement processing (step S134).
  • the start instruction signal is input by moving the mouse pointer to a desired position on the trend screen by operating the mouse of the input unit 31 and then clicking the mouse button.
  • the region-of-interest display screen generation unit 352 generates background color characteristic change screen data by changing the characteristic of the background color of the trend display area using the start instruction signal of the enlargement process input in step S133 as a trigger. (Step S151). Subsequently, the display control unit 362 causes the display unit 34 to display a background color characteristic change screen (step S152).
  • FIG. 38 is a view showing a display example of the background color characteristic change screen on the display unit 34. As shown in FIG. The background color characteristic change screen 602 shown in the figure is displayed in a mode in which the entire trend display area 613 of the original trend screen 601 is shaded. This shaded area schematically indicates that the display is performed with the low transparency as a characteristic of the background color.
  • step S152 the operator station 8 initializes a counter n indicating the number of regions of interest to 1 (step S153).
  • the operator station 3 proceeds to step S155.
  • the selection input operation of the enlarged display target area is realized by the drag operation of the mouse. This drag operation is, for example, the same as the operation performed when enlarging the area of a window displayed on a display monitor provided in a normal personal computer.
  • the region of interest is defined as a rectangular region whose diagonals are the start and end points of the mouse pointer.
  • the region of interest setting unit 361 sets the nth region of interest on the trend screen based on the selection input of the nth region of interest received by the input unit 31 (step S155), and sets the set information to the region of interest information storage unit 372 Temporarily store.
  • the region-of-interest display screen generation unit 352 refers to the region-of-interest information storage unit 372 and generates the entire region-of-interest display screen data by restoring the set background color characteristic of the region of interest (Step S156). ).
  • FIG. 39 is a diagram showing a display example (first example) of the entire region of interest display screen.
  • the entire region of interest display screen 603 shown in the figure displays the first region of interest 613a in the trend display region 613 with a background color having the same characteristics as the trend screen 601, while the non-interest region 613b changes the background color characteristics.
  • the background color having the same characteristics as the screen 602 is displayed.
  • FIG. 39 shows a case where the user sets the region of interest by performing a drag operation with the mouse from the upper left vertex (see FIG.
  • the arrow L is a virtual line indicating the locus of the mouse pointer M from the background color characteristic change screen 602 of FIG. 38 to the entire region of interest display screen 603 of FIG. 39 and is displayed on the actual screen. is not. However, it is of course possible to display the locus on the screen to clearly indicate the locus.
  • a selection confirmation confirmation display portion 619 is displayed substantially at the center of the trend display area.
  • buttons of “Yes” and “No” are displayed together with the characters “selection confirmed?”.
  • FIG. 40 is a diagram showing a display example (second example) of the region of interest display screen.
  • the entire region of interest display screen 604 shown in the same figure displays the first region of interest 613 a and the second region of interest 613 c in the trend display region 613 respectively with a background color having the same characteristics as the trend screen 601 while An area 613 d is displayed in a background color having the same characteristics as the background color characteristic change screen 602.
  • FIG. 40 shows a state where the user has performed a mouse drag operation to set the second region of interest 613 c after the “No” button of the selection confirmation display portion 619 is selected in the state shown in FIG. 39. ing.
  • a selection confirmation / confirmation display portion 619 is also displayed on the entire region of interest display screen 604.
  • step S158 After the entire region of interest display screen is displayed on the display unit 34 in step S157, the operator station 8 performs processing for increasing the counter n by 1 (step S158).
  • step S159 when the input unit 31 receives the input of the selection confirmation signal of the region of interest (step S159: Yes), the enlargement trend screen generation unit 353 enlarges and displays the selected region over the entire trend display region. Trend screen data is generated (step S160).
  • the input acceptance of the selection decision signal in step S159 is executed by selecting the “Yes” button of the selection decision confirmation display unit 619 in FIG. 39 and the like.
  • the enlarged trend screen generation unit 353 enlarges the region of interest to the entire trend display region 613.
  • the enlargement trend screen generation unit 353 reacquires state information on the trend of the area to be enlarged when enlarging the scales of the trend display area 613 to be enlarged (vertical scale, horizontal scale, etc. Redraw according to). For this reason, when the aspect ratio (aspect ratio) of the region of interest is not equal to the aspect ratio of the trend display region, the enlargement ratios in the vertical direction and the horizontal direction are different. For example, in the case shown in FIG. 39, the enlargement factor in the horizontal direction of the first region of interest 613a is larger than the enlargement factor in the vertical direction.
  • the enlarged trend screen generation unit 353 also generates enlarged trend screen data for the non-interest region 613 b around the first region of interest 613 a. At this time, the enlargement trend screen generation unit 353 generates enlargement trend screen data while maintaining the characteristics of the background color of the first region of interest 613a and the non-interest region 613b before the enlargement.
  • the display unit 34 can smoothly display the scroll screen (see step S138 described later).
  • step S154 When the input unit 31 does not receive the selection input of the region of interest in step S154 (step S154: No), and when the input unit 31 does not receive the input of the selection determination signal of the region of interest in step S159 (step S159: No)
  • step S159: No The operator station 3 moves to step S161.
  • step S161 is the same as step S19 of FIG. 6 described in the first embodiment.
  • step S161 when the input unit 31 does not receive the input of the signal for ending the enlargement process (step S161: No), the operator station 3 returns to step S154.
  • FIG. 41 is a diagram showing a display example (first example) of the enlarged trend screen.
  • the enlarged trend screen 605 shown in the figure is a screen in which the first region of interest 613a and the second region of interest 613c in the entire region of interest display screen 604 of FIG.
  • the enlargement factors of the first region of interest 613a and the second interest region 613c in this case are larger than the enlargement factors of the vertical direction.
  • FIG. 42 is a diagram showing a display example (second example) of the enlarged trend screen according to the scroll amount.
  • the enlarged trend screen 606 shown in the figure scrolls the screen upward using the vertical scroll bar 617a with respect to the first region of interest 613a, while scrolling the screen rightward using the horizontal scroll bar 618a.
  • An example display is shown after the screen is scrolled upward using the vertical scroll bar 617b with respect to the region of interest 613c, while the screen is scrolled rightward using the horizontal scroll bar 618b.
  • the characteristics of the background color of the first region of interest 613a, the second region of interest 613c, and the non-interest region 613d are the same as the entire region of interest display screen 604. Therefore, when the user scrolls the enlarged trend screen, the user can accurately grasp the boundaries between the first region of interest 613a and the second region of interest 613c and the non-interest region 613d.
  • step S139: Yes the operator station 3 returns to step S131.
  • step S139 when the input unit 31 does not receive the input of the reduction display (step S139: No), when the input of the command signal for ending the trend display is received (step S140: Yes), the operator station 3 displays the trend screen End the process. On the other hand, when the input unit 31 does not receive the input of the instruction signal for ending the trend display in step S140 (step S140: No), the operator station 3 returns to step S137.
  • step S133: No When the input unit 31 does not receive the input of the start instruction signal of the enlargement processing in step S133 (step S133: No), and when the enlargement trend screen data is not generated in step S135 (step S135: No)
  • the unit 36 determines whether the state information stored in the state information storage unit 371 is updated (step S141). As a result of the determination, when the state information is updated (step S141: Yes), the operator station 3 returns to step S131. On the other hand, if the state information is not updated as a result of the determination (step S141: No), the operator station 3 proceeds to step S142.
  • the process of step S142 is the same as step S9 of FIG. 4 described in the first embodiment.
  • step S137 when the input of the scroll operation on the enlarged trend screen is not received (step S137: No), the operator station 3 proceeds to step S139.
  • the region of interest set as the region to be enlarged is different in the characteristic of the background color different from other regions of non-interest Since the region of interest display screen to be displayed is generated, the region of interest can be accurately grasped when a part of the display screen is enlarged.
  • the difference in characteristics with the region of interest is created by reducing the transparency of the background color in the region of non-interest, the trend of the region of non-interest can also be grasped.
  • the fourth embodiment when the enlarged trend screen is generated, since the non-interest region around the region of interest is also enlarged, the trend around the region of interest can be confirmed by scrolling. In addition, since the characteristics of the background color of the non-interest area are the same before and after the enlargement, the user can clearly distinguish the interest area from the non-interest area even after the enlargement.
  • the user can perform setting of the region of interest and generation of the enlarged trend screen only by performing the drag and drop operation of the mouse, so that the desired enlargement trend can be performed by a simple operation. You can see the screen.
  • FIG. 43 is a diagram showing a display example of the enlarged trend screen on the display unit 34 according to the first modification of the fourth embodiment.
  • the enlarged trend screen 607 shown in the figure is enlarged at the same magnification and displayed without changing the aspect ratio of the first region of interest 613a and the second region of interest 613c shown in FIG.
  • the vertical direction is the largest while the horizontal direction is not the largest. Therefore, in the enlarged trend screen, the non-interest region 613d 'is displayed along the horizontal direction.
  • the enlarged trend screen 607 shows the case where the widths of the two regions of interest are substantially the same, this is merely an example.
  • FIG. 44 is a diagram schematically showing a display example of the enlarged trend screen on the display unit 34 according to the second modification of the fourth embodiment.
  • the display range of the first region of interest 613 a ′ ′ and the second region of interest 613 c ′ ′ of the trend display region 613 ′ ′ is smaller than the entire region of each display region.
  • a non-interest region 613 d ′ ′ is displayed on the part.
  • the fifth embodiment of the present invention is intended to be able to execute various processes on a trend screen in a display device provided in a monitoring system, and in particular to store a region of interest desired by a user.
  • the fifth embodiment of the present invention is characterized in having a configuration for more accurately grasping a region to be enlarged when expanding one region of interest.
  • FIG. 45 is a block diagram showing a configuration of an operator station which is a display device according to the fifth embodiment.
  • the operator station 9 shown in the figure has the same configuration as the operator station 8 described in the third embodiment, and forms a part of the monitoring system 1.
  • the same components as the components of the monitoring system 1 will be described with the same reference numerals as in FIG.
  • the image processing unit 91 included in the operator station 9 generates a trend screen data generation unit 911 that generates trend screen data, and a region of interest display screen generation unit 912 that generates region of interest display screen data that displays a region of interest set on the trend screen. And an enlarged trend screen generation unit 913 that generates enlarged trend screen data in which the region of interest is expanded.
  • the image processing unit 91 is realized using a CPU, various arithmetic circuits, and the like.
  • the region-of-interest display screen generation unit 912 generates region-of-interest display screen data that displays the region set as the region of interest in the trend screen so as to be distinguishable from the other non-interest regions. Specifically, when the input unit 31 receives an input of a start instruction signal of enlargement processing, the region of interest display screen generation unit 912 changes the characteristic of the background color of the trend display region to change the background color characteristic change screen data. Generate Thereafter, when the input unit 31 receives the selection input of the region of interest, the region-of-interest display screen generation unit 912 displays the region of interest in the trend display region with a background color having the same characteristics as the trend screen, The area is displayed in a background color having the same characteristics as the background color characteristic change screen. The characteristic of the background color changed by the region of interest display screen generation unit 912 is the same as that of the fourth embodiment described above.
  • the outline of the trend screen display process executed by the operator station 9 is the same as the flowchart shown in FIG. 24, but the contents of the enlargement process (step S65) are different.
  • the outline of the enlargement processing performed by the operator station 9 will be described below with reference to the flowchart shown in FIG.
  • FIG. 46 the processes of steps S171 to S172 are the same as the processes of steps S151 to S152 of FIG.
  • FIG. 47 is a view showing a display example of the trend screen on the display unit 34.
  • the trend screen 701 shown in FIG. 47 has the same configuration as the trend screen 601 shown in FIG. Therefore, parts corresponding to the trend screen 601 are given the same reference numerals as the trend screen 601.
  • the trend screen 701 also illustrates the case where the trend graphs 711, 712, and 713 of broken lines respectively indicating the trends of the three internal instruments A, B, and C are displayed, but the number of trends to be displayed is It is not limited.
  • FIG. 48 is a view showing a display example of the background color characteristic change screen on the display unit 34.
  • the background color characteristic change screen 702 shown in the figure is displayed in a mode in which the entire trend display area 613 of the original trend screen 701 is shaded. This shaded area schematically indicates that the display is performed with the low transparency as a characteristic of the background color.
  • step S173 Yes
  • the operator station 9 proceeds to step S174.
  • the selection input operation of the enlarged display target area is realized by the drag operation of the mouse as in the fourth embodiment.
  • the region of interest setting unit 361 sets the region of interest on the trend screen based on the selection input of the region of interest received by the input unit 31, and temporarily stores the set information in the region of interest information storage unit 372 (step S174).
  • the region-of-interest display screen generation unit 912 generates region-of-interest display screen data by referencing the region-of-interest information storage unit 372 and restoring the set background color characteristic of the region of interest (Step S175).
  • FIG. 49 is a diagram showing a display example of the region of interest display screen.
  • the region of interest display screen 703 shown in the figure displays the region of interest 721 in the trend display region 613 with a background color having the same characteristics as the trend screen 701 while the region of non-interest 722 displays the background color characteristic change screen 702. It is displayed in a background color having similar characteristics.
  • FIG. 49 shows a case where the user sets the region of interest by performing a drag operation with the mouse from the upper left vertex (see FIG. 48) of the region of interest 721 (see FIG. 48) to the lower right vertex (broken line in the region of interest 721) Arrow L)). Also in FIG. 49, the arrow L is a virtual line, but may be displayed on the screen.
  • Step S177 when the input unit 31 receives an input of a selection confirmation signal of a region of interest (Step S177: Yes), when an input of a bookmark registration instruction signal of a region of interest determined by the input unit 31 is received (Step S178: Yes), the bookmark registration unit 811 adds the bookmark registration information to the information of the corresponding region of interest, and stores it in the bookmark information storage unit 821 (step S179).
  • the enlargement trend screen generation unit 913 generates enlargement trend screen data in which the selected area is enlarged and displayed in the entire trend display area 613 (step S180).
  • the selection decision signal is realized by the drop operation of the mouse as in the fourth embodiment.
  • FIG. 49 shows the case where the top left vertex of the region of interest 721 is the start point and the bottom right vertex is the end point.
  • FIG. 50 is a diagram showing a display example of the enlarged trend screen.
  • the enlarged trend screen 704 shown in the figure is a screen in which the region of interest 721 in the region of interest display screen 703 of FIG. 49 is enlarged to the entire area of the trend display region 613.
  • the enlargement factor of the region of interest 721 in this case is larger than the enlargement factor of the vertical direction.
  • step S178 when the input unit 31 does not receive the input of the bookmark registration instruction signal of the determined region of interest (step S178: No), the operator station 9 proceeds to step S180.
  • step S173 When the input unit 31 does not receive the selection input of the region of interest in step S173 (step S173: No), and when the input unit 31 does not receive the input of the selection determination signal of the region of interest in step S177 (step S177: No)
  • step S173: No When the input unit 31 does not receive the selection input of the region of interest in step S173 (step S173: No), and when the input unit 31 does not receive the input of the selection determination signal of the region of interest in step S177 (step S177: No)
  • step S177: No The operator station 9 proceeds to step S181.
  • step S181 when the input unit 31 receives an input of a signal for ending the enlargement process (step S181: Yes), the operator station 9 ends the enlargement process and returns to the main routine. On the other hand, when the input unit 31 does not receive the input of the signal for ending the enlargement process in step S181 (step S181: No), the operator station 9 returns to step S173.
  • various processes can be performed on the trend screen.
  • the user by providing the bookmark registration function, the user can store a desired region of interest.
  • the fifth embodiment by having the function of selecting and browsing the bookmarked region of interest, it is possible to effectively utilize the region of interest selected in the past and perform one-step and fine-grained monitoring. Is possible.
  • the fifth embodiment in order to generate a region-of-interest display screen that displays the region of interest set as the region to be enlarged with the characteristic of the background color different from that of the other non-interest regions, When expanding a part, it is possible to accurately grasp the area of interest.
  • the fourth embodiment is characterized in that the transparency of the background color is reduced in the non-interest region, and the non-interest region around the region of interest is also expanded when generating the enlarged trend screen.
  • the user can grasp the trend of the non-interest region or can clearly distinguish the interest region from the non-interest region even after enlargement.
  • the point suitable for the screen which displays a trend graph like a trend is also the same as that of the embodiment.
  • the bookmark registration function by providing the bookmark registration function, the user can store the desired region of interest not temporarily. Further, according to the fifth embodiment, by having the function of selecting and browsing the bookmarked region of interest, it is possible to effectively utilize the region of interest selected in the past and perform one-step and fine-grained monitoring. Is possible.
  • the position, shape or size of the region of interest can be selected in addition to the fact that the user can select the region of interest simply by performing the drag and drop operation of the mouse. Can be changed, which allows more flexible setting of the region of interest.
  • the mouse wheel when returning from the enlarged trend screen 704 shown in FIG. 50 to the region of interest display screen 703 shown in FIG. 49, by operating the mouse wheel, the mouse wheel is operated gradually.
  • the image may be reduced.
  • the user can view the trend screen in the intermediate state by stopping the operation of the mouse wheel on the way.
  • the characteristics of the background color of the region of interest and the region of non-interest are kept, the user can clearly identify the region of interest and the region of non-interest even during the process of reducing the image. preferable.
  • the process when returning from the enlarged trend screen 704 shown in FIG. 50 to the region of interest display screen 703 shown in FIG. 49, the process is started by selecting an icon displayed as “return” on the display unit. You may do so.
  • the enlarged trend screen 704 so as to gradually reduce the size on the region of interest display screen 703, it is possible to obtain the same visual effect as the mouse wheel operation described above.
  • the reduction process is stopped by selecting the icon displayed as "stop" on the display unit, it is possible to obtain the same effect as when the mouse wheel operation is stopped halfway.
  • a monitoring system using a personal computer with a display function incorporating SCADA (Supervisory Control And Data Acquisition) software and a monitoring system using a programmable control system with a programmable controller and a display unit.
  • SCADA Supervisory Control And Data Acquisition

Abstract

This display device is provided with: a display unit capable of displaying images; a trend screen generation unit for generating data for a trend screen to be displayed in a prescribed display area of the display unit; an area of interest display screen generation unit for generating data for an area of interest display screen in which information on a plurality of mutually different areas of interest set from within the trend screen are displayed together with the trend screen; an enlarged trend screen generation unit for generating data for an enlarged trend screen in which a plurality of areas of interest are enlarged; an input unit for receiving input to set a plurality of areas of interest and input of an instruction to generate an enlarged trend screen; and a display control unit for causing the display unit to display trend screens, area of interest display screens, and enlarged trend screens.

Description

表示装置、監視システム、表示方法および表示プログラムDisplay device, monitoring system, display method and display program
　本発明は、プラントを監視する監視システムにおいて制御装置から取得した情報を表示する表示装置、該表示装置を備えた監視システム、該表示装置が実行する表示方法および表示プログラムに関する。 The present invention relates to a display device for displaying information acquired from a control device in a monitoring system for monitoring a plant, a monitoring system provided with the display device, and a display method and display program executed by the display device.
　従来、鉄鋼プラント、化学プラント、発電プラント等の各種プラントを対象とするプロセスの制御や監視を行うための監視システムとして、プロセスの制御を行う制御装置と、ヒューマンマシンインターフェースとしてのオペレータステーションとを備えた分散型制御システムが知られている。 Conventionally, as a monitoring system for controlling and monitoring processes targeting various plants such as steel plants, chemical plants, and power plants, the system includes a control device that controls the processes and an operator station as a human machine interface. Distributed control systems are known.
　オペレータステーションは、制御装置から送られてくるプラントの状態情報に基づいた画像コンテンツの表示を行う機能を有している。このような画像コンテンツとして、例えばプラントに設けられた機器の状態情報の時間的な履歴を示すトレンド画面がある。トレンド画面では、より詳細な情報を把握するために選択した領域を拡大して表示することができる。 The operator station has a function to display image content based on the status information of the plant sent from the control device. As such image content, there is, for example, a trend screen showing a temporal history of status information of devices provided in a plant. On the trend screen, it is possible to magnify and display an area selected to grasp more detailed information.
　トレンド画面をより見やすくするための技術として、下記特許文献１には、トレンド画面上でユーザが入力部を介して所望の領域を指定入力すると、その指定入力された領域を拡大して表示する技術が開示されている。 As a technology for making the trend screen easier to read, in Patent Document 1 below, when the user designates and inputs a desired area on the trend screen via the input unit, a technology for enlarging and displaying the designated / inputted area Is disclosed.
特開２００５－３３２３６０号公報JP, 2005-332360, A
　しかしながら、上述した特許文献１に記載の技術では、トレンド画面上の一部領域を拡大することはできるものの、例えば複数の関心領域を比較したり、一度拡大した領域をあとで再度拡大したりするといったことまでは想定されておらず、トレンド画面上で実行できる処理が限られていた。 However, with the technology described in Patent Document 1 described above, although it is possible to enlarge a partial region on the trend screen, for example, a plurality of regions of interest are compared or the region once enlarged is enlarged again later. It was not assumed until that, but the processing that can be executed on the trend screen was limited.
　本発明は、上記に鑑みてなされたものであって、トレンド画面上で多様な処理を実行することができる表示装置、監視システム、表示方法および表示プログラムを提供することを目的とする。 The present invention has been made in view of the above, and it is an object of the present invention to provide a display device, a monitoring system, a display method, and a display program capable of executing various processes on a trend screen.
　上述した課題を解決し、目的を達成するために、本発明に係る表示装置は、画像を表示可能な表示部と、前記表示部の所定の表示領域に表示するトレンド画面のデータを生成するトレンド画面生成部と、前記トレンド画面内で設定される互いに異なる複数の関心領域の情報を前記トレンド画面とともに表示する関心領域表示画面のデータを生成する関心領域表示画面生成部と、前記複数の関心領域を拡大した拡大トレンド画面のデータを生成する拡大トレンド画面生成部と、前記複数の関心領域の設定入力および前記拡大トレンド画面の生成指示入力を受け付ける入力部と、前記トレンド画面、前記関心領域表示画面および前記拡大トレンド画面を前記表示部にそれぞれ表示させる表示制御部と、を備えたことを特徴とする。 In order to solve the problems described above and achieve the object, a display device according to the present invention is a display unit capable of displaying an image, and a trend for generating data of a trend screen displayed in a predetermined display area of the display unit. A screen generation unit; a region of interest display screen generation unit for generating data of a region of interest display screen displaying information of a plurality of different regions of interest set in the trend screen together with the trend screen; and the plurality of regions of interest An enlarged trend screen generating unit for generating data of an enlarged trend screen, an input unit for receiving an input for setting the plurality of regions of interest and an instruction for generating the enlarged trend screen, the trend screen, the region of interest display screen And a display control unit for displaying the enlarged trend screen on the display unit.
　本発明に係る表示装置は、上記発明において、前記拡大トレンド画面生成部は、前記複数の関心領域を拡大して一つの方向に沿って並べることによって前記拡大トレンド画面のデータを生成することを特徴とする。 The display device according to the present invention is characterized in that, in the above-mentioned invention, the enlarged trend screen generation unit generates data of the enlarged trend screen by enlarging the plurality of regions of interest and arranging them along one direction. I assume.
　本発明に係る表示装置は、上記発明において、前記拡大トレンド画面生成部は、前記複数の関心領域を同じ大きさで並べることによって前記拡大トレンド画面のデータを生成することを特徴とする。 The display device according to the present invention is characterized in that, in the above-mentioned invention, the enlarged trend screen generation unit generates data of the enlarged trend screen by arranging the plurality of regions of interest with the same size.
　本発明に係る表示装置は、上記発明において、前記拡大トレンド画面生成部は、前記複数の関心領域を並べる方向と直交する方向のスケールを互いに等しくすることによって前記拡大トレンド画面のデータを生成することを特徴とする。 In the display device according to the present invention, in the above-described invention, the enlarged trend screen generation unit generates data of the enlarged trend screen by equalizing scales in directions orthogonal to the direction in which the plurality of regions of interest are arranged. It is characterized by
　本発明に係る表示装置は、上記発明において、前記拡大トレンド画面生成部は、前記複数の関心領域を拡大して重畳することによって前記拡大トレンド画面のデータを生成することを特徴とする。 In the display device according to the present invention as set forth above, the enlarged trend screen generation unit generates data of the enlarged trend screen by enlarging and superimposing the plurality of regions of interest.
　本発明に係る表示装置は、上記発明において、前記トレンド画面は、横軸を時間軸とする一方、縦軸を所定の測定値の軸として該測定値の時間変化を示すトレンドグラフを表示し、前記拡大トレンド画面生成部は、前記複数の関心領域をそれぞれ通過する前記トレンドグラフの各部分における線の特徴を関心領域ごとに変えることによって前記拡大トレンド画面のデータを生成することを特徴とする。 In the display device according to the present invention, in the above-mentioned invention, the trend screen displays a trend graph indicating time change of the measurement value while setting the horizontal axis as a time axis and the vertical axis as an axis of a predetermined measurement value. The enlarged trend screen generation unit is characterized in that data of the enlarged trend screen is generated by changing line features in each portion of the trend graph which respectively passes through the plurality of regions of interest.
　本発明に係る表示装置は、上記発明において、前記トレンド画面は、横軸を時間軸とする一方、縦軸を所定の測定値の軸として該測定値の時間変化を示すトレンドグラフを表示し、前記拡大トレンド画面生成部は、前記複数の関心領域を通過する前記トレンドグラフのいずれか２つにおける同じ時間の測定値の差が閾値以上である領域の背景色の特性と該閾値未満である領域の背景色の特性とを変えることによって前記拡大トレンド画面のデータを生成することを特徴とする。 In the display device according to the present invention, in the above-mentioned invention, the trend screen displays a trend graph indicating time change of the measurement value while setting the horizontal axis as a time axis and the vertical axis as an axis of a predetermined measurement value. The enlarged trend screen generation unit is configured to calculate a characteristic of a background color of a region where a difference between measured values at the same time in any two of the trend graphs passing through the plurality of regions of interest is a threshold color and a region less than the threshold Generating the data of the enlarged trend screen by changing the characteristics of the background color of the image.
　本発明に係る表示装置は、上記発明において、前記複数の関心領域は、互いの面積および形状がそれぞれ同じであることを特徴とする。 The display device according to the present invention is characterized in that, in the above-mentioned invention, the plurality of regions of interest have the same area and shape as each other.
　本発明に係る表示装置は、上記発明において、前記拡大トレンド画面生成部は、前記複数の関心領域の形状をぞれぞれ保持したまま拡大することを特徴とする。 The display device according to the present invention is characterized in that, in the above-mentioned invention, the enlargement trend screen generation unit enlarges the shapes of the plurality of regions of interest while holding them.
　本発明に係る表示装置は、上記発明において、前記入力部は、前記複数の関心領域の各々における位置、面積または形状を変更する指示入力を受け付け可能であり、前記関心領域表示画面生成部は、前記入力部が受け付けた指示入力に基づいて前記関心領域表示画面における前記複数の関心領域の位置、形状または大きさを変更可能であることを特徴とする。 In the display device according to the present invention according to the above-mentioned invention, the input unit can receive an instruction input for changing a position, an area or a shape in each of the plurality of regions of interest, and the region of interest display screen generation unit The position, shape, or size of the plurality of regions of interest on the region-of-interest display screen can be changed based on the instruction input received by the input unit.
　本発明に係る表示装置は、上記発明において、前記関心領域画面生成部は、前記トレンド画面内で設定される前記複数の関心領域における背景色の特性と前記トレンド画面内の前記複数の関心領域以外の非関心領域における背景色の特性とが異なる関心領域表示画面のデータを生成することを特徴とする。 In the display device according to the present invention, in the above-mentioned invention, the region-of-interest screen generation unit is configured to exclude the characteristics of the background color in the plurality of regions of interest set in the trend screen and the plurality of regions of interest in the trend screen. It generates the data of the region of interest display screen which is different from the characteristic of the background color in the non-interest region of.
　本発明に係る表示装置は、上記発明において、前記背景色の特性は、色の透過性であることを特徴とする。 The display device according to the present invention is characterized in that, in the above-mentioned invention, the characteristic of the background color is color transparency.
　本発明に係る表示装置は、上記発明において、プラントに設置された複数の機器に接続された制御装置と通信可能に接続されてなり、前記表示部は、前記制御装置から前記複数の機器の状態をそれぞれ示す複数の状態情報を取得して表示することを特徴とする。 The display device according to the present invention is, in the above invention, communicably connected to a control device connected to a plurality of devices installed in a plant, and the display unit is a state of the plurality of devices from the control device Are obtained and displayed.
　本発明に係る表示装置は、上記発明において、前記トレンド画面は、前記複数の状態情報の少なくともいずれか一つのトレンドを示すトレンドグラフを表示することを特徴とする。 The display apparatus according to the present invention is characterized in that, in the above-mentioned invention, the trend screen displays a trend graph indicating a trend of at least one of the plurality of state information.
　本発明に係る表示装置は、画像を表示可能な表示部と、前記表示部の所定の表示領域に表示するトレンド画面のデータを生成するトレンド画面生成部と、前記トレンド画面内で設定される関心領域を識別可能に表示する関心領域表示画面のデータを生成する関心領域表示画面生成部と、前記表示領域内で少なくとも前記関心領域を拡大した拡大トレンド画面のデータを生成する拡大トレンド画面生成部と、前記関心領域の設定入力、前記拡大トレンド画面の生成指示入力および前記関心領域のブックマーク登録指示信号の入力を受け付ける入力部と、前記トレンド画面、前記関心領域表示画面および前記拡大トレンド画面を前記表示部にそれぞれ表示させる表示制御部と、前記入力部が入力を受け付けたブックマーク登録指示信号に基づいて、前記関心領域に対してブックマークに登録されたことを示す情報を付加するブックマーク登録部と、を備えたことを特徴とする。 A display device according to the present invention includes a display unit capable of displaying an image, a trend screen generation unit generating data of a trend screen displayed in a predetermined display area of the display unit, and an interest set in the trend screen A region-of-interest display screen generation unit that generates data of a region-of-interest display screen that displays regions in a discriminable manner; an enlarged trend screen generation unit that generates data of an enlarged trend screen in which at least the region of interest is expanded within the display region; An input unit for receiving an input of setting of the region of interest, an input of generation instruction of the enlarged trend screen, and an input of a bookmark registration instruction signal of the region of interest, the trend screen, the region of interest display screen, and the enlarged trend screen A display control unit to be displayed on each unit, and a bookmark registration instruction signal received by the input unit. Characterized in that and a bookmark registration unit that adds information indicating that it has been registered in the bookmark relative to the region of interest.
　本発明に係る表示装置は、上記発明において、前記入力部は、前記ブックマークに登録された前記関心領域の選択信号の入力を受け付け、前記ブックマーク登録部によって前記ブックマークに登録された前記関心領域の情報を記憶する記憶部と、前記記憶部から前記選択信号に対応する前記関心領域を選択する関心領域選択部と、をさらに備えたことを特徴とする。 In the display device according to the present invention, in the above-described invention, the input unit receives an input of a selection signal of the region of interest registered in the bookmark, and the information of the region of interest registered in the bookmark by the bookmark registration unit. And a region-of-interest selection unit for selecting the region of interest corresponding to the selection signal from the storage unit.
　本発明に係る表示装置は、上記発明において、前記関心領域表示画面は、前記トレンド画面内で設定される関心領域における背景色の特性と前記トレンド画面内の前記関心領域以外の非関心領域における背景色の特性とが異なることを特徴とする。 In the display device according to the present invention, in the above-mentioned invention, the region of interest display screen is a characteristic of background color in a region of interest set in the trend screen and a background in a non-interest region other than the region of interest in the trend screen. It is characterized in that it differs from the color characteristics.
　本発明に係る監視システムは、プラントに設置された複数の機器に接続された制御装置と、前記制御装置と通信可能に接続され、前記制御装置から前記複数の機器の状態をそれぞれ示す複数の状態情報を取得して前記表示部で表示する上記の表示装置と、を備えたことを特徴とする。 A monitoring system according to the present invention includes a control device connected to a plurality of devices installed in a plant, and a plurality of states connected communicably to the control device and indicating states of the plurality of devices from the control device. And a display device as described above that acquires information and displays it on the display unit.
　本発明に係る表示方法は、画像を表示可能な表示部を備えた表示装置が行う表示方法であって、前記表示部の所定の表示領域にトレンド画面を表示するトレンド画面表示ステップと、前記トレンド画面内に含まれる複数の関心領域の設定入力を受け付ける関心領域設定ステップと、前記トレンド画面内で設定される複数の関心領域を示す情報を前記トレンド画面とともに表示する関心領域表示画面表示ステップと、前記複数の関心領域を拡大した拡大トレンド画面を表示する拡大トレンド画面表示ステップと、を含むことを特徴とする。 The display method according to the present invention is a display method performed by a display device provided with a display unit capable of displaying an image, and includes a trend screen display step of displaying a trend screen in a predetermined display area of the display unit; A region of interest setting step of receiving setting input of a plurality of regions of interest included in the screen; and a region of interest display screen display step of displaying information indicating the plurality of regions of interest set in the trend screen together with the trend screen; And an enlarged trend screen display step of displaying an enlarged trend screen in which the plurality of regions of interest are enlarged.
　本発明に係る表示方法は、画像を表示可能な表示部を備えた表示装置が行う表示方法であって、前記表示部の所定の表示領域にトレンド画面を表示するトレンド画面表示ステップと、前記トレンド画面内に含まれる関心領域の設定入力を受け付ける関心領域設定ステップと、前記関心領域を識別可能に表示する関心領域表示画面を表示する関心領域表示画面表示ステップと、前記表示領域内で少なくとも前記関心領域を拡大した拡大トレンド画面を表示する拡大トレンド画面表示ステップと、ブックマーク登録指示信号の入力に応じて前記関心領域に対してブックマークに登録されたことを示す情報を付加するブックマーク登録ステップと、を含むことを特徴とする。 The display method according to the present invention is a display method performed by a display device provided with a display unit capable of displaying an image, and includes a trend screen display step of displaying a trend screen in a predetermined display area of the display unit; A region of interest setting step for receiving a setting input of a region of interest included in the screen; a region of interest display screen for displaying the region of interest display screen for identifiably displaying the region of interest; and at least the interest in the display region An enlarged trend screen display step of displaying an enlarged trend screen in which the region is enlarged; and a bookmark registration step of adding information indicating that the region of interest has been registered in the bookmark according to an input of a bookmark registration instruction signal. It is characterized by including.
　本発明に係る表示プログラムは、画像を表示可能な表示部を備えた表示装置に、前記表示部の所定の表示領域にトレンド画面を表示するトレンド画面表示ステップと、前記トレンド画面内に含まれる複数の関心領域の設定入力を受け付ける関心領域設定ステップと、前記トレンド画面内で設定される複数の関心領域を示す情報を前記トレンド画面とともに表示する関心領域表示画面表示ステップと、前記複数の関心領域を拡大した拡大トレンド画面を表示する拡大トレンド画面表示ステップと、を実行させることを特徴とする。 A display program according to the present invention comprises a display screen provided with a display unit capable of displaying an image, a trend screen display step of displaying a trend screen in a predetermined display area of the display unit, and a plurality of display screens included in the trend screen. And a region of interest display screen displaying step of displaying information indicating a plurality of regions of interest set in the trend screen together with the trend screen, and a plurality of regions of interest An enlarged trend screen display step of displaying an enlarged enlarged trend screen is performed.
　本発明に係る表示プログラムは、画像を表示可能な表示部を備えた表示装置に、前記表示部の所定の表示領域にトレンド画面を表示するトレンド画面表示ステップと、前記トレンド画面内に含まれる関心領域の設定入力を受け付ける関心領域設定ステップと、前記関心領域を識別可能に表示する関心領域表示画面を表示する関心領域表示画面表示ステップと、前記表示領域内で少なくとも前記関心領域を拡大した拡大トレンド画面を表示する拡大トレンド画面表示ステップと、ブックマーク登録指示信号の入力に応じて前記関心領域に対してブックマークに登録されたことを示す情報を付加するブックマーク登録ステップと、を実行させることを特徴とする。 A display program according to the present invention comprises a trend screen display step of displaying a trend screen in a predetermined display area of the display unit on a display device provided with a display unit capable of displaying an image, and an interest included in the trend screen A region of interest setting step of receiving a region setting input, a region of interest display screen display step of displaying a region of interest display screen for identifiably displaying the region of interest, and an enlarged trend obtained by enlarging at least the region of interest in the display region And a bookmark registration step of adding information indicating that the region of interest has been registered in the bookmark according to an input of a bookmark registration instruction signal. Do.
　本発明によれば、トレンド画面上で多様な処理を実行することが可能となる。 According to the present invention, it is possible to execute various processes on the trend screen.
本発明の実施の形態１に係る監視システムの構成を模式的に示す図である。It is a figure which shows typically the structure of the monitoring system which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る表示装置であるオペレータステーションの構成を示すブロック図である。It is a block diagram which shows the structure of the operator station which is a display apparatus which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る表示装置であるオペレータステーションの表示部における監視システム用の表示画面の表示例を模式的に示す図である。It is a figure which shows typically the example of a display of the display screen for monitoring systems in the display part of the operator station which is a display apparatus which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る表示装置であるオペレータステーションが実行する表示方法の処理の概要を示すフローチャートである。It is a flowchart which shows the outline | summary of a process of the display method which the operator station which is a display apparatus which concerns on Embodiment 1 of this invention performs. 本発明の実施の形態１に係る表示装置であるオペレータステーションの表示部におけるトレンド画面の表示例を示す図である。It is a figure which shows the example of a display of the trend screen in the display part of the operator station which is a display apparatus which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る表示装置であるオペレータステーションが実行する拡大処理の概要を示すフローチャートである。It is a flowchart which shows the outline | summary of the expansion process which the operator station which is a display apparatus which concerns on Embodiment 1 of this invention performs. 本発明の実施の形態１に係る表示装置の表示部における全関心領域表示画面の表示例（カウンタが１の場合）を示す図である。It is a figure which shows the example of a display of the whole region of interest display screen in the display part of the display apparatus which concerns on Embodiment 1 of this invention (when a counter is 1). 本発明の実施の形態１に係る表示装置の表示部における全関心領域表示画面の表示例（カウンタが２の場合）を示す図である。It is a figure which shows the example of a display of the whole region of interest display screen in the display part of the display apparatus which concerns on Embodiment 1 of this invention (when a counter is 2). 本発明の実施の形態１に係る表示装置の表示部における全関心領域表示画面の表示例（カウンタが３の場合）を示す図である。It is a figure which shows the example of a display of the whole region of interest display screen in the display part of the display apparatus which concerns on Embodiment 1 of this invention (when a counter is 3). 本発明の実施の形態１に係る表示装置の拡大トレンド画面生成部が生成する拡大トレンド画面の第１例を示す図である。It is a figure which shows the 1st example of the expansion trend screen which the expansion trend screen production | generation part of the display apparatus which concerns on Embodiment 1 of this invention produces | generates. 本発明の実施の形態１に係る表示装置の拡大トレンド画面生成部が生成する拡大トレンド画面の第２例を示す図である。It is a figure which shows the 2nd example of the expansion trend screen which the expansion trend screen production | generation part of the display apparatus which concerns on Embodiment 1 of this invention produces | generates. 本発明の実施の形態１に係る表示装置の拡大トレンド画面生成部が生成する拡大トレンド画面の第３例を示す図である。It is a figure which shows the 3rd example of the expansion trend screen which the expansion trend screen production | generation part of the display apparatus which concerns on Embodiment 1 of this invention produces | generates. 本発明の実施の形態１に係る表示装置の拡大トレンド画面生成部が生成する拡大トレンド画面の第４例を示す図である。It is a figure which shows the 4th example of the expansion trend screen which the expansion trend screen production | generation part of the display apparatus which concerns on Embodiment 1 of this invention produces | generates. 本発明の実施の形態１の変形例１における拡大トレンド画面の表示例を示す図である。It is a figure which shows the example of a display of the expansion trend screen in the modification 1 of Embodiment 1 of this invention. 本発明の実施の形態１の変形例２における拡大トレンド画面の表示例を示す図である。It is a figure which shows the example of a display of the expansion trend screen in the modification 2 of Embodiment 1 of this invention. 本発明の実施の形態１の変形例３における全関心領域表示画面の表示例を示す図である。It is a figure which shows the example of a display of the all-interest area display screen in the modification 3 of Embodiment 1 of this invention. 本発明の実施の形態１の変形例３における拡大トレンド画面の表示例（第１例）を示す図である。It is a figure which shows the display example (1st example) of the expansion trend screen in the modification 3 of Embodiment 1 of this invention. 本発明の実施の形態１の変形例３における拡大トレンド画面の表示例（第２例）を示す図である。It is a figure which shows the display example (2nd example) of the expansion trend screen in the modification 3 of Embodiment 1 of this invention. 本発明の実施の形態２に係る表示装置が実行する表示方法の処理の概要を示すフローチャートである。It is a flowchart which shows the outline | summary of a process of the display method which the display apparatus which concerns on Embodiment 2 of this invention performs. 本発明の実施の形態２に係る表示装置であるオペレータステーションが実行する関心領域変更処理の概要を示すフローチャートである。It is a flowchart which shows the outline | summary of the region of interest change process which the operator station which is a display apparatus which concerns on Embodiment 2 of this invention performs. 本発明の実施の形態２に係る表示装置であるオペレータステーションが実行する関心領域の移動処理を模式的に示す図である。It is a figure which shows typically the movement process of the region of interest which the operator station which is a display apparatus which concerns on Embodiment 2 of this invention performs. 本発明の実施の形態２に係る表示装置であるオペレータステーションが実行する関心領域の拡大・変形処理を模式的に示す図である。It is a figure which shows typically the expansion / deformation process of the region of interest which the operator station which is a display apparatus which concerns on Embodiment 2 of this invention performs. 本発明の実施の形態３に係る表示装置であるオペレータステーションの構成を示すブロック図である。It is a block diagram which shows the structure of the operator station which is a display apparatus which concerns on Embodiment 3 of this invention. 本発明の実施の形態３に係る表示装置であるオペレータステーションが実行する表示方法の処理の概要を示すフローチャートである。It is a flowchart which shows the outline | summary of a process of the display method which the operator station which is a display apparatus which concerns on Embodiment 3 of this invention performs. 本発明の実施の形態３に係る表示装置であるオペレータステーションが実行する拡大処理の概要を示すフローチャートである。It is a flowchart which shows the outline | summary of the expansion process which the operator station which is a display apparatus which concerns on Embodiment 3 of this invention performs. 本発明の実施の形態３に係る表示装置であるオペレータステーションが関心領域をブックマーク登録する処理の詳細を示すフローチャートである。It is a flowchart which shows the detail of the process which the operator station which is a display apparatus which concerns on Embodiment 3 of this invention bookmarks a region of interest. 本発明の実施の形態３に係る表示装置であるオペレータステーションの表示部における登録確認画面の表示例を示す図である。It is a figure which shows the example of a display of the registration confirmation screen in the display part of the operator station which is a display apparatus which concerns on Embodiment 3 of this invention. 本発明の実施の形態３に係る表示装置であるオペレータステーションが実行する関心領域選択処理の概要を示すフローチャートである。It is a flowchart which shows the outline | summary of the region of interest selection process which the operator station which is a display apparatus which concerns on Embodiment 3 of this invention performs. ブックマーク登録済みの関心領域を選択する際に表示部が表示する選択用画面の表示例を示す図である。It is a figure which shows the example of a display of the screen for selection which a display part displays, when selecting the region of interest with which the bookmark registration was completed. 選択関心領域表示画面の表示例を示す図である。It is a figure which shows the example of a display of a selection interest area | region display screen. 図３０に示す選択関心領域表示画面において、戻るボタンが選択された場合に表示される関心領域画面の表示例を示す図である。FIG. 31 is a diagram showing a display example of a region of interest screen displayed when the back button is selected on the selected region of interest display screen shown in FIG. 30. １つのブックマーク登録済み関心領域が選択された場合の選択用画面の表示例を示す図である。It is a figure which shows the example of a display of the screen for selection when one bookmark registered interest area | region is selected. ２つのブックマーク登録済み関心領域が選択された場合の選択関心領域表示画面の表示例を示す図である。FIG. 17 is a diagram showing a display example of a selected region of interest display screen when two bookmark registered regions of interest are selected. 本発明の実施の形態３に係る表示装置であるオペレータステーションの表示部における関心領域表示画面の別の表示例を示す図である。It is a figure which shows another display example of the region of interest display screen in the display part of the operator station which is a display apparatus which concerns on Embodiment 3 of this invention. 本発明の実施の形態４に係る表示装置が実行する表示方法の処理の概要を示すフローチャートである。It is a flowchart which shows the outline | summary of a process of the display method which the display apparatus which concerns on Embodiment 4 of this invention performs. 本発明の実施の形態４に係る表示装置の表示部におけるトレンド画面の表示例を示す図である。It is a figure which shows the example of a display of the trend screen in the display part of the display apparatus which concerns on Embodiment 4 of this invention. 本発明の実施の形態４に係る表示装置であるオペレータステーションが実行する拡大処理の概要を示すフローチャートである。It is a flowchart which shows the outline | summary of the expansion process which the operator station which is a display apparatus which concerns on Embodiment 4 of this invention performs. 本発明の実施の形態４に係る表示装置の表示部における背景色特性変更画面の表示例を示す図である。It is a figure which shows the example of a display of the background color characteristic change screen in the display part of the display apparatus which concerns on Embodiment 4 of this invention. 本発明の実施の形態４に係る表示装置の表示部における関心領域表示画面の表示例（第１例）を示す図である。It is a figure which shows the example of a display (1st example) of the region-of-interest display screen in the display part of the display apparatus which concerns on Embodiment 4 of this invention. 本発明の実施の形態４に係る表示装置の表示部における関心領域表示画面の表示例（第２例）を示す図である。It is a figure which shows the example of a display of the region of interest display screen in the display part of the display apparatus which concerns on Embodiment 4 of this invention (2nd example). 本発明の実施の形態４に係る表示装置の表示部における拡大トレンド画面の表示例（第１例）を示す図である。It is a figure which shows the example of a display (1st example) of the expansion trend screen in the display part of the display apparatus which concerns on Embodiment 4 of this invention. 本発明の実施の形態４に係る表示装置の表示部における拡大トレンド画面の表示例（第２例）を示す図である。It is a figure which shows the example of a display (2nd example) of the expansion trend screen in the display part of the display apparatus which concerns on Embodiment 4 of this invention. 本発明の実施の形態４の変形例１に係る表示装置の表示部における拡大トレンド画面の表示例を示す図である。It is a figure which shows the example of a display of the expansion trend screen in the display part of the display apparatus which concerns on the modification 1 of Embodiment 4 of this invention. 本発明の実施の形態４の変形例２に係る表示装置の表示部における拡大トレンド画面が有するトレンド表示領域の表示例を示す図である。It is a figure which shows the example of a display of the trend display area which the expansion trend screen in the display part of the display apparatus which concerns on the modification 2 of Embodiment 4 of this invention has. 本発明の実施の形態５に係る表示装置であるオペレータステーションの構成を示すブロック図である。It is a block diagram which shows the structure of the operator station which is a display apparatus based on Embodiment 5 of this invention. 本発明の実施の形態５に係る表示装置であるオペレータステーションが実行する拡大処理の概要を示すフローチャートである。It is a flowchart which shows the outline | summary of the expansion process which the operator station which is a display apparatus which concerns on Embodiment 5 of this invention performs. 本発明の実施の形態５に係る表示装置の表示部におけるトレンド画面の表示例を示す図である。It is a figure which shows the example of a display of the trend screen in the display part of the display apparatus which concerns on Embodiment 5 of this invention. 本発明の実施の形態５に係る表示装置の表示部における背景色特性変更画面の表示例を示す図である。It is a figure which shows the example of a display of the background color characteristic change screen in the display part of the display apparatus which concerns on Embodiment 5 of this invention. 本発明の実施の形態５に係る表示装置の表示部における関心領域表示画面の表示例を示す図である。It is a figure which shows the example of a display of the region of interest display screen in the display part of the display apparatus which concerns on Embodiment 5 of this invention. 本発明の実施の形態５に係る表示装置の表示部における拡大トレンド画面の表示例を示す図である。It is a figure which shows the example of a display of the expansion trend screen in the display part of the display apparatus which concerns on Embodiment 5 of this invention.
　以下に、添付図面を参照して、本発明を実施するための形態（以下、「実施の形態」という）を説明する。 Hereinafter, modes for carrying out the present invention (hereinafter, referred to as “embodiments”) will be described with reference to the accompanying drawings.
（実施の形態１）
　本発明の実施の形態１は、監視システムが備える表示装置において、トレンド画面上での多様な処理を実行することができ、特に異なる関心領域同士を容易にかつ正確に比較することができることを目的とする。図１は、本発明の実施の形態１に係る監視システムの構成を模式的に示す図である。同図に示す監視システム１は、鉄鋼プラント、化学プラントまたは発電プラント等のプラントＰで行われるプロセスの制御や監視を行う分散型制御システム（ＤＣＳ：Distributed　Control　System）である。監視システム１は、複数の制御装置２（図１では２つの制御装置２のみを図示）と、オペレータステーション３と、データベースステーション４と、プリンタ５と、を備える。 Embodiment 1
The first embodiment of the present invention aims to be able to execute various processes on a trend screen in a display device included in a monitoring system, and in particular to easily and accurately compare different regions of interest. I assume. FIG. 1 is a view schematically showing a configuration of a monitoring system according to Embodiment 1 of the present invention. The monitoring system 1 shown in the figure is a distributed control system (DCS: Distributed Control System) that controls and monitors processes performed in a plant P such as a steel plant, a chemical plant or a power plant. The monitoring system 1 includes a plurality of control devices 2 (only two control devices 2 are shown in FIG. 1), an operator station 3, a database station 4, and a printer 5.
　複数の制御装置２、オペレータステーション３およびデータベースステーション４は、制御ネットワーク６を介して通信可能に接続されている。オペレータステーション３、データベースステーション４およびプリンタ５は、情報ネットワーク７を介して通信可能に接続されている。制御ネットワーク６および情報ネットワーク７の各々は、例えばＬＡＮ（Local　Area　Network）、ＷＡＮ（Wide　Area　Network）、イントラネット、公衆回線網、専用回線網などを適宜組み合わせた通信ネットワークによって構成される。 The plurality of control devices 2, the operator station 3 and the database station 4 are communicably connected via the control network 6. The operator station 3, the database station 4 and the printer 5 are communicably connected via an information network 7. Each of the control network 6 and the information network 7 is constituted by, for example, a communication network in which a LAN (Local Area Network), a WAN (Wide Area Network), an intranet, a public line network, a private line network and the like are appropriately combined.
　制御装置２は、プラントＰのプロセスを実行するためにプラントＰに設置された各種機器（図１では２つの機器Ｐ１、Ｐ２のみを図示）に接続されたセンサ等の計測装置と接続する。制御装置２は、ＣＰＵ（Central　Processing　Unit）を備え、計測装置の測定結果等に基づいた演算を行うことによって各種機器を制御する。制御装置２が行う制御方式として、例えばＰＩＤ（Proportional　Integral　Derivative）制御を挙げることができる。 The control device 2 is connected to measurement devices such as sensors connected to various devices (only two devices P1 and P2 are shown in FIG. 1) installed in the plant P in order to execute the process of the plant P. The control device 2 includes a CPU (Central Processing Unit), and controls various devices by performing calculations based on measurement results of the measurement device. As a control method which the control device 2 performs, for example, PID (Proportional Integral Derivative) control can be mentioned.
　制御装置２は、上述した計測装置の測定結果等に基づいてプロセスの制御を行うための内部計器に関わる情報を有している。このような内部計器として、例えばＰＩＤ制御計器、スイッチ（オン／オフ）計器、力率計器、風向計器等がある。 The control device 2 has information on an internal instrument for controlling the process based on the measurement result of the measuring device described above. Examples of such internal instruments include PID control instruments, switch (on / off) instruments, power factor instruments, wind direction instruments and the like.
　制御装置２は、内部計器の情報を制御対象である各種機器の状態を示す状態情報として、制御ネットワーク６を介してオペレータステーション３へ定期的に送信する。状態情報には、計測装置の測定結果に加えて、各種設定値、異常を示す情報（アラーム）、内部計器を識別するためのＴＡＧ情報等が含まれる。 The control device 2 periodically transmits information of the internal instrument to the operator station 3 via the control network 6 as state information indicating the states of various devices to be controlled. The state information includes various setting values, information (alarm) indicating an abnormality, TAG information for identifying an internal meter, and the like, in addition to the measurement results of the measuring device.
　制御装置２は、制御ネットワーク６を介してオペレータステーション３から送られてくる指示信号に基づいて、各種設定値の変更等の処理を行う。 The control device 2 performs processing such as changing of various setting values based on an instruction signal sent from the operator station 3 via the control network 6.
　図２は、オペレータステーション３の構成を示すブロック図である。同図に示すオペレータステーション３は、ユーザ（プラント管理者等のオペレータ）が、プラントＰの稼動状態を確認するための装置であり、本発明に係る表示装置として機能する。オペレータステーション３は、入力部３１と、第１通信部３２と、第２通信部３３と、表示部３４と、画像処理部３５と、制御部３６と、記憶部３７と、を備える。 FIG. 2 is a block diagram showing the configuration of the operator station 3. The operator station 3 shown in the figure is a device for a user (an operator such as a plant manager) to check the operation state of the plant P, and functions as a display device according to the present invention. The operator station 3 includes an input unit 31, a first communication unit 32, a second communication unit 33, a display unit 34, an image processing unit 35, a control unit 36, and a storage unit 37.
　入力部３１は、キーボード、およびマウス等のポインティングデバイスを用いて構成され、ユーザによる各種操作指示信号の入力を受け付ける。入力部３１を構成するポインティングデバイスとして、表示部３４の表示画面上に重ねて設けられるタッチパネルを適用することも可能である。 The input unit 31 is configured using a keyboard and a pointing device such as a mouse, and receives an input of various operation instruction signals from the user. It is also possible to apply a touch panel provided overlapping on the display screen of the display unit 34 as a pointing device constituting the input unit 31.
　第１通信部３２は、制御部３６の制御の下、制御ネットワーク６を介して複数の制御装置２との間で各種データを送受信する。第１通信部３２が制御装置２から受信した情報は、記憶部３７に格納されて記憶される。
　第２通信部３３は、制御部３６の制御の下、情報ネットワーク７を介してデータベースステーション４やプリンタ５との間で各種データを送受信する。 The first communication unit 32 transmits and receives various data to and from a plurality of control devices 2 via the control network 6 under the control of the control unit 36. The information received by the first communication unit 32 from the control device 2 is stored in the storage unit 37 and stored.
The second communication unit 33 transmits and receives various data to and from the database station 4 and the printer 5 via the information network 7 under the control of the control unit 36.
　表示部３４は、液晶または有機ＥＬ（Electro　Luminescence）等のディスプレイを用いて構成され、制御部３６による制御の下、各種情報を表示する。図３は、表示部３４における監視システム用の表示画面の表示例を模式的に示す図である。同図に示す表示画面１００は、ユーザがプラントの状況や作業の目的に応じて選択するための各種メニューを表示するメニュー表示領域１００ａと、制御対象である機器の状態情報を表示する状態情報表示領域１００ｂとを有する。状態情報表示領域１００ｂには、プラントＰに関する各種情報を表示するグラフィック画面、プラントＰの機器Ｐ１、Ｐ２等から得られる状態情報をトレンド表示するトレンド画面、および機器Ｐ１、Ｐ２等から得られた状態情報を帳票形式で表示する帳票画面、プラントＰに異常が発生した場合に出力されるアラーム情報を表示するアラーム画面等が表示される。 The display unit 34 is configured using a display such as liquid crystal or organic EL (Electro Luminescence), and displays various information under the control of the control unit 36. FIG. 3 is a view schematically showing a display example of a display screen for the monitoring system in the display unit 34. As shown in FIG. The display screen 100 shown in the figure includes a menu display area 100a for displaying various menus for the user to select according to the status of the plant and the purpose of work, and a state information display for displaying state information of the device to be controlled. And a region 100b. In the status information display area 100b, a graphic screen for displaying various information on the plant P, a trend screen for trend displaying status information obtained from the devices P1 and P2 of the plant P, and a status obtained from the devices P1 and P2 A form screen for displaying information in the form of a form, an alarm screen for displaying alarm information output when an abnormality occurs in the plant P, and the like are displayed.
　画像処理部３５は、トレンド画面データを生成するトレンド画面生成部３５１と、トレンド画面で設定される複数の関心領域（複数の領域）を表示する関心領域表示画面データを生成する関心領域表示画面生成部３５２と、複数の関心領域を拡大表示する拡大トレンド画面データを生成する拡大トレンド画面生成部３５３と、を有する。画像処理部３５は、ＣＰＵや各種演算回路等を用いて実現される。 The image processing unit 35 generates a trend screen generating unit 351 for generating trend screen data, and a region of interest display screen for generating region of interest display screen data for displaying a plurality of regions of interest (a plurality of regions) set on the trend screen. And an enlarged trend screen generation unit 353 that generates enlarged trend screen data for enlarging and displaying a plurality of regions of interest. The image processing unit 35 is realized using a CPU, various arithmetic circuits, and the like.
　トレンド画面生成部３５１は、制御装置２から第１通信部３２を介して受信した情報および記憶部３７が記憶する情報を参照することにより、選択された内部計器に対応する機器の状態情報を表示するトレンド画面データを生成する。
　関心領域表示画面生成部３５２は、トレンド画面の中で関心領域として設定された領域をそれ以外の非関心領域と識別可能に表示する関心領域表示画面データを生成する。本実施の形態１では、１つの画面上で２つの関心領域を設定できるものとして説明するが、より一般に複数の関心領域を設定可能としてもよい。
　拡大トレンド画面生成部３５３は、設定された複数の関心領域を所定のレイアウト情報にしたがって配置して拡大表示する拡大トレンド画面データを生成する。 The trend screen generation unit 351 displays the state information of the device corresponding to the selected internal instrument by referring to the information received from the control device 2 via the first communication unit 32 and the information stored in the storage unit 37. Generate trend screen data.
The region-of-interest display screen generation unit 352 generates region-of-interest display screen data that displays the region set as the region of interest in the trend screen so as to be distinguishable from the other non-interest regions. In the first embodiment, although it is described that two regions of interest can be set on one screen, more generally, a plurality of regions of interest may be set.
The enlarged trend screen generation unit 353 generates enlarged trend screen data in which a plurality of set regions of interest are arranged and enlarged according to predetermined layout information.
　制御部３６は、入力部３１が受け付けた関心領域の設定信号に基づいて、トレンド画面における関心領域を設定する関心領域設定部３６１と、表示部３４の表示処理を制御する表示制御部３６２と、制御装置２が行うプロセス制御の制御パラメータを入力部３１の入力に応じて変更する制御パラメータ変更部３６３とを有する。 The control unit 36 sets a region of interest setting unit 361 that sets a region of interest on the trend screen based on the setting signal of the region of interest received by the input unit 31, and a display control unit 362 that controls display processing of the display unit 34; The control parameter change unit 363 changes the control parameter of the process control performed by the control device 2 according to the input of the input unit 31.
　制御部３６は、ＣＰＵや各種演算回路等を用いて構成され、入力部３１が入力を受け付けた各種操作指示信号に応じてオペレータステーション３を構成する各部に対応する指示やデータの転送等を行うことにより、オペレータステーション３の動作を統括して制御する。なお、画像処理部３５と制御部３６を、共通のＣＰＵを用いて構成することも可能である。 Control unit 36 is configured using a CPU, various arithmetic circuits, and the like, and performs, for example, transfer of instructions and data corresponding to each unit constituting operator station 3 in accordance with various operation instruction signals input by input unit 31. Thus, the operation of the operator station 3 is controlled centrally. It is also possible to configure the image processing unit 35 and the control unit 36 using a common CPU.
　記憶部３７は、状態情報記憶部３７１と、関心領域情報記憶部３７２と、レイアウト情報記憶部３７３と、プログラム記憶部３７４と、を有する。 The storage unit 37 includes a state information storage unit 371, a region of interest information storage unit 372, a layout information storage unit 373 and a program storage unit 374.
　状態情報記憶部３７１は、第１通信部３２が制御装置２から定期的に受信する複数の状態情報を記憶する。状態情報記憶部３７１は、制御部３６の制御の下、複数の状態情報を受信するごとに記憶する情報を更新するとともに、それ以前の情報を、第２通信部３３を介してデータベースステーション４へ送信するようにしてもよい。 The state information storage unit 371 stores a plurality of state information that the first communication unit 32 periodically receives from the control device 2. Under the control of the control unit 36, the state information storage unit 371 updates the information stored each time a plurality of state information is received, and also sends the previous information to the database station 4 via the second communication unit 33. You may make it transmit.
　関心領域情報記憶部３７２は、拡大トレンド画面生成部３５３が拡大トレンド画面データを生成する際に必要な情報を記憶する。このような情報として、関心領域設定部３６１が設定した関心領域の位置および大きさ（縦と横の長さ）に関する情報等がある。なお、本実施の形態１において、関心領域設定部３６１が設定した関心領域の情報は、その情報に基づく拡大トレンド画面データが拡大トレンド画面生成部３５３によって生成された時点で自動的に削除してもよい。すなわち、関心領域情報記憶部３７２は、関心領域の情報を、拡大トレンド画面生成部３５３が拡大トレンド画面を生成するまでの間、一時的に記憶するようにしてもよい。 The region-of-interest information storage unit 372 stores information necessary when the enlargement trend screen generation unit 353 generates enlargement trend screen data. Such information includes, for example, information on the position and size (length and width) of the region of interest set by the region of interest setting unit 361. In the first embodiment, the information of the region of interest set by the region of interest setting unit 361 is automatically deleted when the enlarged trend screen data based on the information is generated by the enlarged trend screen generation unit 353. It is also good. That is, the region-of-interest information storage unit 372 may temporarily store information on the region of interest until the enlarged trend screen generation unit 353 generates the enlarged trend screen.
　レイアウト情報記憶部３７３は、拡大トレンド画面生成部３５３が拡大トレンド画面データを生成する際のレイアウト情報を記憶する。レイアウト情報記憶部３７３が記憶するレイアウト情報は、例えば複数の関心領域の配置に関する情報、縦横のスケールおよび表示する値の範囲に関する情報、表示するグラフの色に関する情報等である。複数の関心領域の配置には、例えば縦に並べる配置、横に並べる配置、および複数の関心領域を重畳する配置がある。 The layout information storage unit 373 stores layout information when the enlargement trend screen generation unit 353 generates enlargement trend screen data. The layout information stored in the layout information storage unit 373 is, for example, information on the arrangement of a plurality of regions of interest, vertical and horizontal scales, information on the range of values to be displayed, and information on colors of graphs to be displayed. The arrangement of the plurality of regions of interest includes, for example, the arrangement in vertical alignment, the arrangement in horizontal alignment, and the arrangement in which a plurality of regions of interest are superimposed.
　プログラム記憶部３７４は、本実施の形態１に係る表示プログラムを含み、オペレータステーション３を動作させるための各種プログラム、および各種プログラムの実行中に使用される各種データ等を記憶する。なお、プログラム記憶部３７４が記憶するプログラムは、コンピュータ読み取り可能な記録媒体に記録することも可能である。また、プログラムの記録部または記録媒体への記録は、コンピュータまたは記録媒体を製品として出荷する際に行ってもよいし、通信ネットワークを介したダウンロードにより行ってもよい。 The program storage unit 374 includes the display program according to the first embodiment, and stores various programs for operating the operator station 3 and various data used during execution of the various programs. The program stored in the program storage unit 374 can also be recorded on a computer readable recording medium. The program may be recorded in the recording unit or the recording medium when the computer or the recording medium is shipped as a product, or may be downloaded through a communication network.
　記憶部３７は、本実施の形態１に係る表示プログラムや所定のＯＳを起動するプログラム等が予めインストールされたＲＯＭ（Read　Only　Memory）、および各処理の演算パラメータやデータ等を記憶するＲＡＭ（Random　Access　Memory）等を用いて実現される。上述した各種プログラムは、通信ネットワークを介してダウンロードすることによって取得することも可能である。ここでいう通信ネットワークは、例えば既存の公衆回線網、ＬＡＮ、ＷＡＮなどによって実現されるものであり、有線、無線を問わない。 The storage unit 37 is a ROM (Read Only Memory) in which a display program according to the first embodiment and a program for starting up a predetermined OS are installed in advance, and a RAM (Random) storing operation parameters and data of each process. It is realized using an Access Memory or the like. The various programs described above can also be acquired by downloading via a communication network. The communication network mentioned here is realized by, for example, an existing public network, LAN, WAN or the like, and may be wired or wireless.
　以上の構成を有するオペレータステーション３は、１つのコンピュータを用いて実現してもよいし、複数のコンピュータを用いて実現してもよい。後者の場合には、通信ネットワークを介してデータの送受信を行いながら、互いに連携して処理を行うようにすることも可能である。なお、ここでいうコンピュータは、汎用のパーソナルコンピュータやサーバ等によって構成することができる。また、通信ネットワークを介した複数のコンピュータからなるクライアント・サーバシステムによってオペレータステーション３を構築する場合には、入力部３１および表示部３４の機能をクライアント端末に具備させる一方、画像処理部３５、制御部３６および記憶部３７の機能を一または複数のサーバに分散するような構成としてもよい。 The operator station 3 having the above configuration may be realized using one computer or may be realized using a plurality of computers. In the latter case, it is possible to perform processing in cooperation with each other while transmitting and receiving data via a communication network. Here, the computer can be configured by a general-purpose personal computer, a server or the like. When the operator station 3 is constructed by a client server system comprising a plurality of computers via a communication network, while the client terminal is provided with the functions of the input unit 31 and the display unit 34, the image processing unit 35 controls The functions of the unit 36 and the storage unit 37 may be distributed to one or more servers.
　データベースステーション４は、制御ネットワーク６を介して制御装置２から送信されてくるデータを蓄積する装置であり、プラントＰに関するアラームの履歴情報や数値のトレンド情報を長期間にわたって保存するための装置である。データベースステーション４は、情報ネットワーク７を介してオペレータステーション３との間でデータの送受信も行う。 The database station 4 is an apparatus for accumulating data transmitted from the control apparatus 2 via the control network 6, and is an apparatus for storing alarm history information on plant P and trend information on numerical values for a long period of time . The database station 4 also transmits and receives data to and from the operator station 3 via the information network 7.
　プリンタ５は、情報ネットワーク７を介して送信されてくるオペレータステーション３の指示信号に基づいて、オペレータステーション３およびデータベースステーション４が記憶する各種データを取得して印刷する。 The printer 5 acquires and prints various data stored in the operator station 3 and the database station 4 based on an instruction signal of the operator station 3 transmitted via the information network 7.
　図４は、本実施の形態１に係る表示装置であるオペレータステーション３が実行する表示方法の処理の概要を示すフローチャートである。図４では、オペレータステーション３において、所定期間における所定の複数の内部計器に対するトレンド画面の表示が選択された場合の処理（以下、トレンド画面表示処理という）の概要を示している。 FIG. 4 is a flowchart showing an outline of processing of a display method performed by the operator station 3 which is the display device according to the first embodiment. FIG. 4 shows an outline of processing (hereinafter referred to as trend screen display processing) when display of a trend screen for a plurality of predetermined internal instruments in a predetermined period is selected in the operator station 3.
　まず、トレンド画面生成部３５１は、表示対象として設定された内部計器に対応する機器の状態情報に含まれる測定値（ＰＶ：Process　Variable）等の時間的な変化を表示するトレンド画面データを生成する（ステップＳ１）。トレンド画面生成部３５１は、トレンド画面データの生成に必要な情報を第１通信部３２を介して制御装置２へ要求する。その後、トレンド画面生成部３５１は、制御装置２から取得した情報および状態情報記憶部３７１が記憶している情報をもとにトレンド画面データを生成する。なお、トレンド画面データに必要な情報の一部をデータベースステーション４から取得するようにしてもよい。 First, the trend screen generation unit 351 generates trend screen data that displays temporal changes such as measured values (PV: Process Variable) included in the state information of the device corresponding to the internal instrument set as the display target. (Step S1). The trend screen generation unit 351 requests the control device 2 via the first communication unit 32 for information required to generate trend screen data. Thereafter, the trend screen generation unit 351 generates trend screen data based on the information acquired from the control device 2 and the information stored in the state information storage unit 371. Note that part of the information necessary for the trend screen data may be acquired from the database station 4.
　続いて、表示制御部３６２は、トレンド画面生成部３５１が生成したトレンド画面データに対応するトレンド画面を表示部３４に表示させる（ステップＳ２）。 Subsequently, the display control unit 362 causes the display unit 34 to display a trend screen corresponding to the trend screen data generated by the trend screen generation unit 351 (step S2).
　図５は、表示部３４におけるトレンド画面の表示例を示す図である。同図に示すトレンド画面１０１は、ある内部計器の時間的なトレンドを示す曲線であるトレンドグラフ２０１を表示している。トレンドグラフ２０１の横軸ｔは時間であり、縦軸ＰＶは測定値である。なお、図５では、１つの内部計器のトレンドを表示している場合を例示しているが、表示対象のトレンドグラフの数はこれに限られるわけではない。 FIG. 5 is a view showing a display example of the trend screen on the display unit 34. As shown in FIG. The trend screen 101 shown in the figure displays a trend graph 201 which is a curve indicating the temporal trend of a certain internal instrument. The horizontal axis t of the trend graph 201 is time, and the vertical axis PV is a measured value. In addition, although the case where the trend of one internal instrument is displayed is illustrated in FIG. 5, the number of trend graphs to be displayed is not limited to this.
　ステップＳ２の後、入力部３１が拡大処理の開始指示信号の入力を受け付けた場合（ステップＳ３：Ｙｅｓ）、オペレータステーション３は、拡大処理を行う（ステップＳ４）。本実施の形態１において、開始指示信号は、ユーザが入力部３１のマウスを操作することによってトレンド画面上の所望の位置にマウスポインタを移動した後、マウスボタンをクリックすることによって入力される。以下、図６に示すフローチャートを参照して、拡大処理の概要を説明する。 After step S2, when the input unit 31 receives the input of the start instruction signal of the enlargement process (step S3: Yes), the operator station 3 performs the enlargement process (step S4). In the first embodiment, the start instruction signal is input by moving the mouse pointer to a desired position on the trend screen by operating the mouse of the input unit 31 and then clicking the mouse button. The outline of the enlargement processing will be described below with reference to the flowchart shown in FIG.
　ステップＳ１１において、オペレータステーション３は、関心領域の数を示すカウンタｎを１に初期化する（ステップＳ１１）。 In step S11, the operator station 3 initializes a counter n indicating the number of regions of interest to 1 (step S11).
　この後、入力部３１がｎ番目の関心領域（以下、第ｎ関心領域という）の選択入力を受け付けた場合（ステップＳ１２：Ｙｅｓ）、オペレータステーション３はステップＳ１３へ移行する。 Thereafter, when the input unit 31 receives a selection input of the nth region of interest (hereinafter referred to as the nth region of interest) (step S12: Yes), the operator station 3 proceeds to step S13.
　カウンタｎが１である場合の第１関心領域の選択入力操作は、マウスのドラッグ操作によって実現される。このドラッグ操作は、例えば通常のパーソナルコンピュータが備える表示モニタ上で表示されるウィンドウの面積を拡大する際に行う操作と同様である。マウスがドラッグされると、第１関心領域はマウスポインタの始点と終点を対角線とする矩形領域として定義される。 The selection input operation of the first region of interest when the counter n is 1 is realized by the drag operation of the mouse. This drag operation is, for example, the same as the operation performed when enlarging the area of a window displayed on a display monitor provided in a normal personal computer. When the mouse is dragged, the first region of interest is defined as a rectangular region whose diagonals are the start and end points of the mouse pointer.
　カウンタｎが２以上である場合の第ｎ関心領域を設定する際の選択入力は、例えばユーザがマウスポインタを所望の位置に配置してクリック操作を行うことによって実現される。マウスポインタの位置を中心として第１関心領域と同じ形状および面積を有する領域が第ｎ関心領域として設定される。 The selection input at the time of setting the nth region of interest when the counter n is 2 or more is realized, for example, by the user arranging the mouse pointer at a desired position and performing a click operation. A region having the same shape and area as the first region of interest around the position of the mouse pointer is set as the nth region of interest.
　ステップＳ１３において、関心領域設定部３６１は、入力部３１が受け付けた第ｎ関心領域の選択入力に基づいて、トレンド画面における第ｎ関心領域の設定を行い（ステップＳ１３）、設定した情報を関心領域情報記憶部３７２へ一時的に格納する。 In step S13, the region-of-interest setting unit 361 sets the n-th region of interest on the trend screen based on the selection input of the n-th region of interest accepted by the input unit 31 (step S13). It is temporarily stored in the information storage unit 372.
　続いて、関心領域表示画面生成部３５２は、関心領域情報記憶部３７２を参照し、設定された全ての関心領域を表示する全関心領域表示画面データを生成する（ステップＳ１４）。 Subsequently, the region-of-interest display screen generation unit 352 refers to the region-of-interest information storage unit 372 and generates whole region-of-interest display screen data that displays all the set regions of interest (step S14).
　この後、表示制御部３６２は、全関心領域表示画面を表示部３４に表示させる（ステップＳ１５）。図７は、カウンタｎが１の場合の全関心領域表示画面の表示例を示す図である。図７に示す全関心領域表示画面１０２は、トレンドグラフ２０１の一部を通過するように設定された矩形状の第１関心領域２５１を表示している。図８は、カウンタｎが２の場合の全関心領域表示画面の表示例を示す図である。図８に示す全関心領域表示画面１０３は、第１関心領域２５１に加えて、第１関心領域２５１と交わりを有しない程度に離れた位置でトレンドグラフ２０１が通過し、第１関心領域２５１と同じ大きさおよび形状を有する第２関心領域２５２を表示している。図９は、カウンタｎが３の場合の全関心領域表示画面の表示例を示す図である。図９に示す全関心領域表示画面１０４は、第１関心領域２５１および第２関心領域２５２に加えて、第１関心領域２５１および第２関心領域２５２と交わりを有しない程度に離れた位置でトレンドグラフ２０１が通過し、第１関心領域２５１と同じ大きさおよび形状を有する第３関心領域２５３を表示している。 Thereafter, the display control unit 362 causes the display unit 34 to display the entire region of interest display screen (step S15). FIG. 7 is a diagram showing a display example of the entire region of interest display screen when the counter n is 1. The entire region of interest display screen 102 shown in FIG. 7 displays a rectangular first region of interest 251 set so as to pass through a part of the trend graph 201. FIG. 8 is a diagram showing a display example of the entire region of interest display screen when the counter n is two. In the entire region of interest display screen 103 shown in FIG. 8, in addition to the first region of interest 251, the trend graph 201 passes at a position separated to such an extent that it does not intersect the first region of interest 251. A second region of interest 252 having the same size and shape is displayed. FIG. 9 is a diagram showing a display example of the entire region of interest display screen when the counter n is three. In addition to the first region of interest 251 and the second region of interest 252, the entire region of interest display screen 104 shown in FIG. 9 is a trend at a position separated to such an extent that the first region of interest 251 and the second region of interest 252 do not intersect. A graph 201 has passed through and displays a third region of interest 253 having the same size and shape as the first region of interest 251.
　ステップＳ１５で全関心領域表示画面が表示部３４で表示された後、オペレータステーション３は、カウンタｎを１増やす処理を行う（ステップＳ１６）。 After the entire region of interest display screen is displayed on the display unit 34 in step S15, the operator station 3 performs a process of increasing the counter n by 1 (step S16).
　この後のステップＳ１７の処理は、入力部３１が関心領域の選択確定信号の入力を受け付けたか否かに応じて異なる。選択確定信号の入力は、例えばマウスのクリック操作によって実現される。ステップＳ１７において、入力部３１が関心領域の選択確定信号の入力を受け付けた場合（ステップＳ１７：Ｙｅｓ）、拡大トレンド画面生成部３５３は、全ての関心領域を所定のレイアウト情報にしたがって配置して拡大表示する拡大トレンド画面データを生成する（ステップＳ１８）。 The subsequent process of step S17 differs depending on whether the input unit 31 receives an input of the selection confirmation signal of the region of interest. The input of the selection confirmation signal is realized by, for example, a click operation of a mouse. In step S17, when the input unit 31 receives the input of the selection confirmation signal of the region of interest (step S17: Yes), the enlargement trend screen generation unit 353 arranges and enlarges all the regions of interest according to predetermined layout information. The enlarged trend screen data to be displayed is generated (step S18).
　拡大トレンド画面生成部３５３は、レイアウト情報記憶部３７３が記憶するレイアウト情報を参照して、全関心領域を縦または横に並べて拡大する。どちらの方向に並べて拡大表示するかは、予めレイアウト情報記憶部３７３が記憶しておく。なお、ユーザがマウスの右クリック操作等によって画面上にレイアウトに関するメニューを表示した後、全関心領域のレイアウトをマウスのクリック操作によって選択できるようにしてもよい。 The enlarged trend screen generation unit 353 arranges and enlarges the entire region of interest vertically or horizontally with reference to the layout information stored in the layout information storage unit 373. The layout information storage unit 373 stores in advance in which direction the lines are to be arranged and enlarged. The user may select the layout of the entire region of interest by clicking the mouse after the menu related to the layout is displayed on the screen by right-clicking the mouse or the like.
　図１０は、拡大トレンド画面生成部３５３が生成する拡大トレンド画面の第１例を示す図である。同図に示す拡大トレンド画面１０５は、全関心領域表示画面１０３における第１関心領域２５１および第２関心領域２５２を縦に並べて配置してそれぞれ拡大表示した画面であり、上側の拡大トレンドグラフ２１１は第１関心領域２５１におけるトレンドグラフ２０１を拡大したものであり、下側の拡大トレンドグラフ２２１は第２関心領域２５２におけるトレンドグラフ２０１を拡大したものである。この場合の第１関心領域２５１および第２関心領域２５２の拡大率は、横方向の拡大率が縦方向の拡大率よりも大きい。なお、第１関心領域２５１および第２関心領域２５２の縦横の比率を、全関心領域表示画面上と同じにしたままで拡大表示するようにしてもよい。また、表示される拡大トレンドグラフに対応したパラメータ値等の付加情報を図３に示すメニュー表示領域１００ａに表示するようにしてもよい。 FIG. 10 is a diagram illustrating a first example of the enlarged trend screen generated by the enlarged trend screen generation unit 353. The enlarged trend screen 105 shown in the figure is a screen in which the first region of interest 251 and the second region of interest 252 in the entire region of interest display screen 103 are arranged vertically and enlarged and displayed, and the upper enlarged trend graph 211 is The enlarged trend graph 201 in the first region of interest 251 is enlarged, and the lower enlarged trend graph 221 is an enlarged graph of the trend graph 201 in the second region of interest 252. In this case, the enlargement ratio of the first region of interest 251 and the second region of interest 252 is larger than the enlargement ratio of the vertical direction. Note that the vertical and horizontal ratio of the first region of interest 251 and the second region of interest 252 may be enlarged and displayed as it is on the entire region of interest display screen. Further, additional information such as parameter values corresponding to the displayed enlarged trend graph may be displayed in the menu display area 100a shown in FIG.
　図１１は、拡大トレンド画面生成部３５３が生成する拡大トレンド画面の第２例を示す図である。同図に示す拡大トレンド画面１０６は、全関心領域表示画面１０３における第１関心領域２５１および第２関心領域２５２を横に並べて配置してそれぞれ拡大表示した画面である。左方の拡大トレンドグラフ２１２は第１関心領域２５１におけるトレンドグラフ２０１を拡大したものであり、右方の拡大トレンドグラフ２２２は第２関心領域２５２におけるトレンドグラフ２０１を拡大したものである。この場合の第１関心領域２５１および第２関心領域２５２の拡大率は、縦方向の拡大率が横方向の拡大率よりも大きい。なお、横に並べて拡大表示する場合にも、第１関心領域２５１および第２関心領域２５２の縦横の比率を全関心領域表示画面上と同じにしたままで拡大表示してもよい。 FIG. 11 is a diagram illustrating a second example of the enlarged trend screen generated by the enlarged trend screen generation unit 353. The enlarged trend screen 106 shown in the figure is a screen in which the first region of interest 251 and the second region of interest 252 in the entire region of interest display screen 103 are arranged side by side and enlarged and displayed. The enlargement trend graph 212 on the left is an enlargement of the trend graph 201 in the first region of interest 251, and the enlargement trend graph 222 on the right is an enlargement of the trend graph 201 in the second region of interest 252. In this case, the enlargement ratio of the first region of interest 251 and the second region of interest 252 is larger than the enlargement ratio of the horizontal direction. Even in the case where the display is arranged side by side and enlarged, the enlarged display may be performed while keeping the horizontal to vertical ratio of the first region of interest 251 and the second region of interest 252 the same as on the entire region of interest display screen.
　図１２は、拡大トレンド画面生成部３５３が生成する拡大トレンド画面の第３例を示す図である。同図に示す拡大トレンド画面１０７は、全関心領域表示画面１０４における第１関心領域２５１、第２関心領域２５２および第３関心領域２５３を横に並べて配置してそれぞれ拡大表示した画面である。左方の拡大トレンドグラフ２１３は第１関心領域２５１におけるトレンドグラフ２０１を拡大したものであり、中央の拡大トレンドグラフ２２３は第２関心領域２５２におけるトレンドグラフ２０１を拡大したものであり、右方の拡大トレンドグラフ２３１は第３関心領域２５３のトレンドグラフ２０１を拡大したものである。なお、第１関心領域２５１、第２関心領域２５２および第３関心領域２５３の縦横の比率を全関心領域表示画面上と同じにしたままで拡大表示してもよい。 FIG. 12 is a diagram illustrating a third example of the enlarged trend screen generated by the enlarged trend screen generation unit 353. The enlarged trend screen 107 shown in the figure is a screen in which the first region of interest 251, the second region of interest 252, and the third region of interest 253 in the entire region of interest display screen 104 are arranged side by side and enlarged and displayed. The enlargement trend graph 213 on the left is an enlargement of the trend graph 201 in the first region of interest 251, and the enlargement trend graph 223 in the center is an enlargement of the trend graph 201 in the second region of interest 252. The enlargement trend graph 231 is an enlargement of the trend graph 201 of the third region of interest 253. In addition, the enlargement display may be performed while keeping the horizontal to vertical ratio of the first region of interest 251, the second region of interest 252, and the third region of interest 253 the same as on the entire region of interest display screen.
　図１３は、拡大トレンド画面生成部３５３が生成する拡大トレンド画面の第４例を示す図である。同図に示す拡大トレンド画面１０８は、全関心領域表示画面１０３における第１関心領域２５１および第２関心領域２５２を重畳してそれぞれ拡大表示した画面である。具体的には、実線で示す拡大トレンドグラフ２１４は第１関心領域２５１におけるトレンドグラフ２０１を拡大したものであり、破線で示す拡大トレンドグラフ２２４は第２関心領域２５２におけるトレンドグラフ２０１を拡大したものである。なお、２つのトレンドグラフの線種を変える代わりに、２つのトレンドグラフの線の色または太さ等の特徴をを変えてもよい。また、重畳して拡大表示する場合にも、第１関心領域２５１および第２関心領域２５２の縦横の比率を全関心領域表示画面上と同じにしたままで拡大表示してもよい。 FIG. 13 is a diagram illustrating a fourth example of the enlarged trend screen generated by the enlarged trend screen generation unit 353. The enlarged trend screen 108 shown in the figure is a screen in which the first region of interest 251 and the second region of interest 252 in the entire region of interest display screen 103 are superimposed and enlarged and displayed. Specifically, the enlargement trend graph 214 shown by a solid line is an enlargement of the trend graph 201 in the first region of interest 251, and the enlargement trend graph 224 shown by a broken line is an enlargement of the trend graph 201 in the second region of interest 252 It is. Note that instead of changing the line types of the two trend graphs, it is also possible to change features such as the color or thickness of the lines of the two trend graphs. In addition, also in the case of overlapping and enlarged display, the enlarged display may be performed while keeping the horizontal to vertical ratio of the first region of interest 251 and the second region of interest 252 the same as on the entire region of interest display screen.
　ステップＳ１７において入力部３１が関心領域の選択確定信号の入力を受け付けない場合（ステップＳ１７：Ｎｏ）、オペレータステーション３はステップＳ１２へ戻る。 When the input unit 31 does not receive the input of the selection determination signal of the region of interest in step S17 (step S17: No), the operator station 3 returns to step S12.
　ステップＳ１２において入力部３１が第１関心領域の選択入力を受け付けない場合（ステップＳ１２：Ｎｏ）において、入力部３１が拡大処理を終了する信号の入力を受け付けたとき（ステップＳ１９：Ｙｅｓ）、オペレータステーション３は拡大処理を終了してメインルーチンへ戻る。一方、ステップＳ１９において、入力部３１が拡大処理を終了する信号の入力を受け付けない場合（ステップＳ１９：Ｎｏ）、オペレータステーション３はステップＳ１２へ戻る。 When the input unit 31 does not receive the selection input of the first region of interest in step S12 (step S12: No), when the input unit 31 receives an input of a signal for ending the enlargement process (step S19: Yes), the operator Station 3 ends the enlargement process and returns to the main routine. On the other hand, when the input unit 31 does not receive the input of the signal for ending the enlargement process in step S19 (step S19: No), the operator station 3 returns to step S12.
　再び図４を参照して、上述したステップＳ４の拡大処理に続く処理を説明する。ステップＳ４での拡大処理の後、拡大トレンド画面データが生成されて存在している場合（ステップＳ５：Ｙｅｓ）、表示制御部３６２は、拡大トレンド画面を表示部３４に表示させる（ステップＳ６）。このステップＳ６では、例えば図１０～図１３に示すような拡大トレンド画面が表示される。 Referring to FIG. 4 again, the process following the enlargement process of step S4 described above will be described. After the enlargement processing in step S4, when the enlargement trend screen data is generated and exists (step S5: Yes), the display control unit 362 causes the display unit 34 to display the enlargement trend screen (step S6). In this step S6, for example, an enlarged trend screen as shown in FIGS. 10 to 13 is displayed.
　この後、入力部３１がトレンド表示終了の指示信号の入力を受け付けたとき（ステップＳ７：Ｙｅｓ）、オペレータステーション３はトレンド画面表示処理を終了する。一方、ステップＳ７において、入力部３１がトレンド表示終了の指示信号の入力を受け付けない場合（ステップＳ７：Ｎｏ）、オペレータステーション３はステップＳ７を繰り返す。 Thereafter, when the input unit 31 receives the input of the instruction signal for ending the trend display (step S7: Yes), the operator station 3 ends the trend screen display process. On the other hand, when the input unit 31 does not receive the input of the instruction signal for ending the trend display in step S7 (step S7: No), the operator station 3 repeats step S7.
　ステップＳ３において、入力部３１が拡大処理の開始指示信号の入力を受け付けない場合（ステップＳ３：Ｎｏ）、およびステップＳ５において、拡大トレンド画面データが生成されていない場合（ステップＳ５：Ｎｏ）、制御部３６は、状態情報記憶部３７１が記憶する状態情報が更新されているか否かを判断する（ステップＳ８）。判断の結果、状態情報が更新されている場合（ステップＳ８：Ｙｅｓ）、オペレータステーション３はステップＳ１へ戻る。一方、判断の結果、状態情報が更新されていない場合（ステップＳ８：Ｎｏ）、オペレータステーション３はステップＳ９へ移行する。 When the input unit 31 does not receive the input of the start instruction signal of the enlargement process in step S3 (step S3: No), and when the enlargement trend screen data is not generated in step S5 (step S5: No) The unit 36 determines whether the state information stored in the state information storage unit 371 is updated (step S8). As a result of the determination, if the state information is updated (step S8: Yes), the operator station 3 returns to step S1. On the other hand, as a result of the determination, when the state information is not updated (step S8: No), the operator station 3 proceeds to step S9.
　ステップＳ９において、入力部３１がトレンド表示終了の指示信号の入力を受け付けた場合（ステップＳ９：Ｙｅｓ）、オペレータステーション３はトレンド画面表示処理を終了する。一方、入力部３１がトレンド表示終了の指示信号の入力を受け付けない場合（ステップＳ９：Ｎｏ）、オペレータステーション３はステップＳ８へ戻る。 In step S9, when the input unit 31 receives the input of the instruction signal for ending the trend display (step S9: Yes), the operator station 3 ends the trend screen display process. On the other hand, when the input unit 31 does not receive the input of the instruction signal for ending the trend display (step S9: No), the operator station 3 returns to step S8.
　本実施の形態１では、２つの関心領域を拡大表示する場合を説明したが、２つ以上の関心領域を拡大表示する場合も同様に行うことが可能である。 Although the case where two regions of interest are enlarged and displayed is described in the first embodiment, the same can be applied to the case where two or more regions of interest are enlarged and displayed.
　以上説明した本発明の実施の形態１によれば、トレンド画面内で設定される互いに異なる複数の関心領域を示す情報をトレンドグラフとともに表示し、複数の関心領域の選択が確定した場合に複数の関心領域を拡大して表示するため、トレンド画面上で多様な処理を実行することができる。特に、本実施の形態１によれば、トレンド画面上で異なる関心領域同士を容易にかつ正確に比較することが可能となる。 According to the first embodiment of the present invention described above, the information indicating a plurality of different regions of interest set in the trend screen is displayed together with the trend graph, and the selection of the plurality of regions of interest is determined. A variety of processes can be performed on the trend screen in order to expand and display the region of interest. In particular, according to the first embodiment, it becomes possible to easily and accurately compare different regions of interest on the trend screen.
　また、本実施の形態１によれば、複数の関心領域を拡大して１つの方向に沿って並べて表示するため、比較を行いやすい。 Further, according to the first embodiment, a plurality of regions of interest are enlarged and displayed side by side along one direction, which facilitates comparison.
　また、本実施の形態１によれば、複数の関心領域を重畳して表示するため、並べて表示する場合と同じく比較を行いやすい。 Further, according to the first embodiment, since a plurality of regions of interest are superimposed and displayed, it is easy to compare as in the case of side by side display.
　また、本実施の形態１によれば、ユーザはマウスの操作を２回行うだけで、２つの関心領域の設定および拡大トレンド画面の生成を実行することができる。したがって、拡大や縮小の操作を複数回繰り返し行う必要はなく、簡単な操作のみで所望の拡大トレンド画面を見ることができる。 Further, according to the first embodiment, the user can perform the setting of two regions of interest and the generation of the enlarged trend screen only by performing the mouse operation twice. Therefore, it is not necessary to repeat the enlargement and reduction operations multiple times, and it is possible to view the desired enlargement trend screen with only a simple operation.
　（実施の形態１の変形例１）
　図１４は、本実施の形態１の変形例１における拡大トレンド画面の表示例を示す図である。同図に示す拡大トレンド画面１０９は、測定値と所定の閾値との大小関係に応じてトレンド曲線の線種を変えて表示している。具体的には、下側に表示されている拡大トレンドグラフ２２１ａにおいて、閾値ＴＨ以下となっている部分を破線で表示している。ここでいう閾値とは、例えば測定値における正常範囲と異常範囲との境界でもよい。なお、閾値との大小に応じて線種を変化させる代わりに線の色を変化させて表示してもよいし、線種と線の色の両方を変化させて表示してもよい。 (Modification 1 of Embodiment 1)
FIG. 14 is a view showing a display example of the enlarged trend screen in the first modification of the first embodiment. The enlarged trend screen 109 shown in the figure changes and displays the line type of the trend curve according to the magnitude relationship between the measured value and the predetermined threshold value. Specifically, in the enlarged trend graph 221a displayed on the lower side, a portion which is equal to or less than the threshold TH is displayed by a broken line. The threshold referred to here may be, for example, the boundary between the normal range and the abnormal range in the measurement value. Note that the color of the line may be changed and displayed instead of changing the line type according to the magnitude with the threshold value, or both of the line type and the color of the line may be changed and displayed.
　本実施の形態１の変形例１によれば、ユーザは閾値との大小を視覚的に認識することができ、より正確な判定を行うことが可能となる。 According to the first modification of the first embodiment, the user can visually recognize the magnitude with the threshold, and it is possible to perform more accurate determination.
（実施の形態１の変形例２）
　図１５は、本実施の形態１の変形例２における拡大トレンド画面の表示例を示す図である。同図に示す拡大トレンド画面１１０は、図１１に示す場合と同様に２つの関心領域におけるトレンドグラフを重畳して表示している。拡大トレンド画面１１０では、２つの拡大トレンドグラフ２１４、２２４の値の差が大きい領域を強調するために、値の差が所定値以下の領域をマスクまたは背景色の特性を変えて表示している。図１５では、マスクしている領域を斜線で表示している。 (Modification 2 of Embodiment 1)
FIG. 15 is a diagram showing a display example of the enlarged trend screen in the second modification of the first embodiment. Similar to the case shown in FIG. 11, the enlarged trend screen 110 shown in the figure superimposes and displays the trend graphs in the two regions of interest. In the enlarged trend screen 110, in order to emphasize the area where the difference between the values of the two enlarged trend graphs 214 and 224 is large, the area with the difference between the values below a predetermined value is displayed with different characteristics of the mask or background color. . In FIG. 15, the masked area is indicated by diagonal lines.
　本実施の形態１の変形例２によれば、ユーザは比較対象の２つのトレンド曲線で差が大きい領域を容易に認識できるため、正確な判定を容易にかつ迅速に行うことが可能となる。 According to the second modification of the first embodiment, the user can easily recognize an area having a large difference between the two trend curves to be compared, so that accurate determination can be performed easily and quickly.
（実施の形態１の変形例３）
　図１６は、本実施の形態１の変形例３における全関心領域表示画面の表示例を示す図である。同図に示す全関心領域表示画面１１１は、トレンドグラフ２０１を通過する２つの関心領域の大きさおよび形状が異なる、具体的には、第１関心領域２５１の面積は第２関心領域２５４よりも面積が小さく、縦横比も異なる。このように、本変形例３では、複数の関心領域の大きさおよび形状を個別に設定することができる。本変形例３において関心領域を設定する際には、ユーザがいったん確定した関心領域の境界付近にマウスポインタを合わせてマウスをドラッグ操作することにより、関心領域の大きさおよび形状を変化させる。 (Modification 3 of Embodiment 1)
FIG. 16 is a diagram showing a display example of the entire region of interest display screen in the third modification of the first embodiment. In the entire region of interest display screen 111 shown in the figure, the sizes and shapes of two regions of interest passing through the trend graph 201 are different, specifically, the area of the first region of interest 251 is more than the second region of interest 254 The area is small and the aspect ratio is also different. Thus, in the third modification, the size and shape of the plurality of regions of interest can be set individually. In setting the region of interest in the third modification, the size and shape of the region of interest are changed by positioning the mouse pointer near the boundary of the region of interest once determined by the user and dragging the mouse.
　図１７は、本変形例３における拡大トレンド画面の表示例（第１例）を示す図である。同図に示す拡大トレンド画面１１２は、第１関心領域と第２関心領域を縦に並べて表示する際、２つのトレンドグラフの縦横のスケールが共通となるように表示している。したがって、第１関心領域２５１におけるトレンドグラフ２０１を拡大した拡大トレンドグラフ２１５は、第２関心領域２５４におけるトレンドグラフ２０１を拡大した拡大トレンドグラフ２２５よりもデータ量が少ない。なお、横軸すなわち時間軸のスケールは、入力部３１からの操作入力によって適宜変更可能としてもよい。また、縦方向の２つの軸ＰＶ１、ＰＶ２の長さが等しくなるよう表示してもよい。 FIG. 17 is a diagram showing a display example (first example) of the enlarged trend screen in the third modification. In the enlarged trend screen 112 shown in the figure, when displaying the first region of interest and the second region of interest vertically, the vertical and horizontal scales of the two trend graphs are displayed in common. Therefore, the enlarged trend graph 215 obtained by enlarging the trend graph 201 in the first region of interest 251 has less data volume than the enlarged trend graph 225 obtained by enlarging the trend graph 201 in the second region of interest 254. The scale of the horizontal axis, that is, the time axis may be changed as appropriate by the operation input from the input unit 31. In addition, it may be displayed such that the lengths of the two vertical axes PV1 and PV2 become equal.
　図１８は、本変形例３における拡大トレンド画面の表示例（第２例）を示す図である。同図に示す拡大トレンド画面１１３は、第１関心領域と第２関心領域を横に並べて表示する際、２つのトレンドグラフの横軸すなわち時間軸のスケールが共通となるように表示している。したがって、第１関心領域２５１におけるトレンドグラフ２０１を拡大した拡大トレンドグラフ２１６は、第２関心領域２５４におけるトレンドグラフ２０１を拡大した拡大トレンドグラフ２２６よりもデータ量が少なく、横軸が短く表示される。図１８に示すように、２つの縦軸のスケールが共通である場合には、２つの拡大トレンドグラフ２１６、２２６の変化率を比較するのに好適である。これに対して、２つの拡大したトレンドグラフの絶対値を比較したい場合には、横に並べた２つのトレンドグラフの縦軸すなわち測定値を示す軸が同一となるようにすればよい。なお、縦軸のスケールは、入力部３１からの操作入力によって適宜変更可能としてもよい。また、横に並べる場合には、第１関心領域と第２関心領域の縦横比に応じて画面内でのトレンドグラフ表示領域の面積が異なるようにしてもよい。 FIG. 18 is a diagram showing a display example (second example) of the enlarged trend screen in the third modification. In the enlarged trend screen 113 shown in the figure, when displaying the first region of interest and the second region of interest side by side, the scales of the horizontal axes of the two trend graphs, that is, the time axes are displayed in common. Therefore, the enlarged trend graph 216 obtained by enlarging the trend graph 201 in the first region of interest 251 has a smaller amount of data than the enlarged trend graph 226 obtained by enlarging the trend graph 201 in the second region of interest 254, and the horizontal axis is displayed shorter. . As shown in FIG. 18, in the case where the scales of the two vertical axes are common, it is preferable to compare the rates of change of the two enlarged trend graphs 216 and 226. On the other hand, when it is desired to compare the absolute values of the two enlarged trend graphs, the vertical axes of the two trend graphs arranged side by side, that is, the axes indicating the measured values may be identical. The scale of the vertical axis may be changed as appropriate by the operation input from the input unit 31. Further, in the case of arranging horizontally, the area of the trend graph display area in the screen may be different according to the aspect ratio of the first area of interest and the second area of interest.
　以上説明した本実施の形態１の変形例３によれば、関心領域の設定をより柔軟に行うことができる。 According to the third modification of the first embodiment described above, the setting of the region of interest can be performed more flexibly.
（実施の形態２）
　本発明の実施の形態２は、監視システムが備える表示装置において、トレンド画面上での多様な処理を実行することができ、特に異なる関心領域同士を容易にかつ正確に比較することができるとともに、関心領域の設定を柔軟に行うことを目的とする。本実施の形態２は、関心領域の設定を行う際に、関心領域の位置、大きさ、形状を変更可能であることを特徴とする。本実施の形態２に係る表示装置は、実施の形態１で説明したオペレータステーション３と同様の構成を有しており、監視システム１の一部をなす。以下、監視システム１が有する構成要素と同じ構成要素については、図１および図２と同一の符号を付して説明する。 Second Embodiment
The second embodiment of the present invention can execute various processes on a trend screen in a display device provided in a monitoring system, and in particular, can easily and accurately compare different regions of interest. The purpose is to flexibly set the area of interest. The second embodiment is characterized in that the position, size, and shape of the region of interest can be changed when setting the region of interest. The display device according to the second embodiment has a configuration similar to that of the operator station 3 described in the first embodiment, and forms a part of the monitoring system 1. Hereinafter, the same components as the components of the monitoring system 1 will be described with the same reference numerals as in FIGS. 1 and 2.
　本実施の形態２に係る表示装置であるオペレータステーション３が実行するトレンド画面表示処理の概要は、図４に示すフローチャートと同様であるが、拡大処理（ステップＳ４）の内容が異なる。以下、図１９に示すフローチャートを参照して、オペレータステーション３が実行する拡大処理の概要を説明する。図１９に示すステップＳ３１～Ｓ３７の処理は、図６に示すステップＳ１１～Ｓ１７の処理に順次対応している。なお、ステップＳ３２において入力部３１が関心領域の選択入力を受け付けない場合（ステップＳ３２：Ｎｏ）、オペレータステーション３は、後述するステップＳ４１へ移行する。 The outline of the trend screen display process executed by the operator station 3 which is the display device according to the second embodiment is the same as the flowchart shown in FIG. 4, but the contents of the enlargement process (step S4) are different. The outline of the enlargement process performed by the operator station 3 will be described below with reference to the flowchart shown in FIG. The processes of steps S31 to S37 shown in FIG. 19 sequentially correspond to the processes of steps S11 to S17 shown in FIG. In addition, when the input part 31 does not receive the selection input of a region of interest in step S32 (step S32: No), the operator station 3 transfers to step S41 mentioned later.
　ステップＳ３７に続くステップＳ３８において、入力部３１が関心領域の変更開始指示信号の入力を受け付けた場合（ステップＳ３８：Ｙｅｓ）、オペレータステーション３は、関心領域変更処理を行う（ステップＳ３９）。 In step S38 following step S37, when the input unit 31 receives an input of a change start instruction signal of a region of interest (step S38: Yes), the operator station 3 performs a region of interest change process (step S39).
　図２０は、オペレータステーション３が実行する関心領域変更処理の概要を示すフローチャートである。まず、入力部３１が関心領域の変更指示信号の入力を受け付けた場合（ステップＳ５１：Ｙｅｓ）、関心領域設定部３６１は関心領域を変更し、変更後の情報を関心領域情報記憶部３７２へ格納する（ステップＳ５２）。 FIG. 20 is a flowchart showing an outline of the region-of-interest change process performed by the operator station 3. First, when the input unit 31 receives the input of the change instruction signal of the region of interest (step S51: Yes), the region of interest setting unit 361 changes the region of interest, and stores the changed information in the region of interest information storage unit 372 (Step S52).
　続いて、関心領域表示画面生成部３５２は、関心領域情報記憶部３７２を参照して全関心領域表示画面データを更新する（ステップＳ５３）。表示制御部３６２は、更新された全関心領域表示画面データに対応する全関心領域表示画面を表示部３４に表示させる（ステップＳ５４）。 Subsequently, the region-of-interest display screen generation unit 352 updates the entire region-of-interest display screen data with reference to the region-of-interest information storage unit 372 (step S53). The display control unit 362 causes the display unit 34 to display an all-interest area display screen corresponding to the updated all-interest area display screen data (step S54).
　図２１は、関心領域変更処理の一例として、関心領域の移動処理を模式的に示す図である。同図に示すトレンド表示領域３０１は、第１関心領域３０２および第２関心領域３０３を有する。破線で示す領域３０２ａは、変更前の第１関心領域３０２の位置および大きさを仮想的に示している。なお、図２１ではトレンドグラフ等の記載を省略している。図２１では、ユーザが第１関心領域３０２の初期位置（領域３０２ａ）における外縁付近にマウスポインタＭを合わせてから右下方向へマウスをドラッグアンドドロップすることにより、第１関心領域３０２を移動させた後の表示状態を示している。この移動操作は、パーソナルコンピュータのモニタ上でのウィンドウの移動操作と同様である。トレンド表示領域３０１の下方には、「続行？」という文字が表示されるとともに、「Ｙｅｓ」および「Ｎｏ」のボタンが表示される。ユーザは、他の関心領域の変更を希望する場合にはマウスポインタＭを「Ｙｅｓ」ボタンに位置合わせしてマウスをクリックする。一方、ユーザは、関心領域の選択を終了する場合には、マウスポインタＭを「Ｎｏ」ボタンに位置合わせしてマウスをクリックする。 FIG. 21 is a diagram schematically showing movement processing of a region of interest as an example of the region of interest change processing. The trend display area 301 shown in the figure includes a first area of interest 302 and a second area of interest 303. A region 302a indicated by a broken line virtually shows the position and the size of the first region of interest 302 before the change. In addition, description of a trend graph etc. is abbreviate | omitted in FIG. In FIG. 21, the user moves the first region of interest 302 by placing the mouse pointer M near the outer edge of the initial position (region 302a) of the first region of interest 302 and then dragging and dropping the mouse in the lower right direction. Shows the display state after the This movement operation is similar to the movement operation of the window on the monitor of the personal computer. In the lower part of the trend display area 301, the characters "Continue" are displayed, and buttons "Yes" and "No" are displayed. The user aligns the mouse pointer M with the “Yes” button and clicks the mouse when he / she desires to change other regions of interest. On the other hand, when ending the selection of the region of interest, the user aligns the mouse pointer M with the “No” button and clicks the mouse.
　図２２は、関心領域の変更処理の別な例として、関心領域の拡大・変形処理を模式的に示す図である。同図に示すトレンド表示領域３１１は、図２２に示すトレンド表示領域３０１に対し、ユーザが第２関心領域３０３の境界の右下頂点部にマウスポインタを合わせてからドラッグアンドドロップすることにより、第２関心領域３０３の形状を変えながら拡大することによって第２関心領域３０３ａに変更した後の表示状態を示している。図２２では、この拡大・変形操作は、パーソナルコンピュータのモニタ上でウィンドウを拡大・変形する操作と同様である。なお、図２２では拡大・変形した場合を例示したが、同様の操作によって関心領域を縮小・変形することも可能であるし、関心領域の形状は変えずに拡大または縮小することも可能である。トレンド表示領域３１１にも、「続行？」の文字と、「Ｙｅｓ」、「Ｎｏ」のボタンが表示されている。 FIG. 22 is a diagram schematically showing enlargement / deformation processing of the region of interest as another example of the processing of changing the region of interest. In the trend display area 311 shown in the figure, the user moves the mouse pointer to the lower right vertex of the boundary of the second region of interest 303 with respect to the trend display area 301 shown in FIG. 2 shows the display state after changing to the second region of interest 303 a by enlarging while changing the shape of the region of interest 303. In FIG. 22, this enlargement / deformation operation is similar to the operation of enlarging / deforming the window on the monitor of the personal computer. In addition, although the case where it expanded and changed was illustrated in FIG. 22, it is also possible to reduce and deform a region of interest by the same operation, and it is also possible to expand or reduce without changing the shape of a region of interest. . In the trend display area 311, the characters "Continue" and buttons "Yes" and "No" are displayed.
　この後、入力部３１が変更続行の指示信号の入力を受け付けた場合（ステップＳ５５：Ｙｅｓ）、オペレータステーション３はステップＳ５１に戻る。一方、入力部３１が選択続行の指示信号の入力を受け付けず、終了指示信号の入力を受け付けた場合（ステップＳ５５：Ｎｏ）、オペレータステーション３は関心領域変更処理を終了する。 Thereafter, when the input unit 31 receives the input of the instruction signal to continue the change (Step S55: Yes), the operator station 3 returns to Step S51. On the other hand, when the input unit 31 does not receive the input of the instruction to continue selection and receives the input of the end instruction signal (Step S55: No), the operator station 3 ends the region of interest change processing.
　ステップＳ５１において、入力部３１が関心領域の変更指示信号の入力を受け付けない場合（ステップＳ５１：Ｎｏ）、オペレータステーション３はステップＳ５６へ移行する。 In step S51, when the input unit 31 does not receive the input of the change instruction signal of the region of interest (step S51: No), the operator station 3 proceeds to step S56.
　ステップＳ５６において、入力部３１が関心領域変更処理を終了する信号の入力を受け付けた場合（ステップＳ５６：Ｙｅｓ）、オペレータステーション３は関心領域変更処理を終了してメインルーチンへ戻る。一方、ステップＳ５６において、入力部３１が関心領域変更処理を終了する信号の入力を受け付けない場合（ステップＳ５６：Ｎｏ）、オペレータステーション３はステップＳ５１へ戻る。 In step S56, when the input unit 31 receives an input of a signal for ending the region of interest change processing (step S56: Yes), the operator station 3 ends the region of interest change processing and returns to the main routine. On the other hand, when the input unit 31 does not receive the input of the signal for ending the region of interest change processing in step S56 (step S56: No), the operator station 3 returns to step S51.
　以上説明した関心領域変更処理（ステップＳ３９）の後、拡大トレンド画面生成部３５３は、関心領域をトレンド表示領域の全域へ拡大した拡大トレンド画面データを生成する（ステップＳ４０）。この場合の拡大トレンド画面は、関心領域ごとの大きさに応じて各関心領域の表示領域を変えて表示してもよいし、各関心領域の表示領域を等分して表示してもよい。 After the region of interest change processing (step S39) described above, the enlarged trend screen generation unit 353 generates enlarged trend screen data in which the region of interest is expanded to the entire trend display region (step S40). The enlarged trend screen in this case may be displayed by changing the display area of each region of interest according to the size of each region of interest, or the display region of each area of interest may be equally divided and displayed.
　ステップＳ３８において、入力部３１が、関心領域の変更開始指示信号の入力を受け付けない場合（ステップＳ３８：Ｎｏ）、オペレータステーション３はステップＳ４０へ移行する。 In step S38, when the input unit 31 does not receive the input of the change start instruction signal of the region of interest (step S38: No), the operator station 3 proceeds to step S40.
　ステップＳ４１において、入力部３１が拡大処理を終了する信号の入力を受け付けた場合（ステップＳ４１：Ｙｅｓ）、オペレータステーション３は拡大処理を終了してメインルーチンへ戻る。一方、ステップＳ４１において、入力部３１が拡大処理を終了する信号の入力を受け付けない場合（ステップＳ４１：Ｎｏ）、オペレータステーション３はステップＳ３２へ戻る。 In step S41, when the input unit 31 receives an input of a signal for ending the enlargement process (step S41: Yes), the operator station 3 ends the enlargement process and returns to the main routine. On the other hand, when the input unit 31 does not receive the input of the signal for ending the enlargement process in step S41 (step S41: No), the operator station 3 returns to step S32.
　以上説明した本発明の実施の形態２によれば、実施の形態１と同様の効果に加えて、ユーザはマウスのドラッグアンドドロップ操作を行うだけで関心領域を選択することができることに加え、関心領域の位置、形状または大きさを変更することができるため、関心領域の設定を一段と柔軟に行うことができる。 According to the second embodiment of the present invention described above, in addition to the same effect as the first embodiment, in addition to the fact that the user can select the region of interest simply by performing the drag and drop operation of the mouse, Since the position, shape or size of the region can be changed, setting of the region of interest can be performed more flexibly.
（実施の形態３）
　本発明の実施の形態３は、監視システムが備える表示装置において、トレンド画面上での多様な処理を実行することができ、特に異なる関心領域同士を容易にかつ正確に比較することができるとともに、過去に選択した関心領域を有効に活用して、きめの細かい監視を行うことを目的とする。図２３は、本発明の実施の形態３に係る表示装置であるオペレータステーションの構成を示すブロック図である。同図に示すオペレータステーション８は、制御部８１および記憶部８２の構成を除いて、実施の形態１で説明したオペレータステーション３と同様の構成を有する（図２を参照）。また、オペレータステーション８は、本実施の形態３に係る監視システムの一部をなす。本実施の形態３に係る監視システムは、オペレータステーションを除いて、実施の形態１に係る監視システム１と同様の構成を有する。以下、監視システム１が有する構成要素と同じ構成要素については、図１および図２と同一の符号を付して説明する。 Third Embodiment
The third embodiment of the present invention can execute various processes on a trend screen in a display device provided in a monitoring system, and in particular, can easily and accurately compare different regions of interest. The purpose is to perform fine-grained monitoring by effectively utilizing the region of interest selected in the past. FIG. 23 is a block diagram showing a configuration of an operator station which is a display device according to Embodiment 3 of the present invention. The operator station 8 shown in the figure has the same configuration as that of the operator station 3 described in the first embodiment except for the configurations of the control unit 81 and the storage unit 82 (see FIG. 2). In addition, the operator station 8 forms a part of the monitoring system according to the third embodiment. The monitoring system according to the third embodiment has the same configuration as the monitoring system 1 according to the first embodiment except for the operator station. Hereinafter, the same components as the components of the monitoring system 1 will be described with the same reference numerals as in FIGS. 1 and 2.
　制御部８１は、関心領域設定部３６１と、表示制御部３６２と、制御パラメータ変更部３６３と、ブックマーク登録部８１１と、関心領域選択部８１２とを有する。ブックマーク登録部８１１は、関心領域に対してブックマークに登録されたことを示す情報を付加する機能を有する。関心領域選択部８１２は、ブックマークに登録された関心領域の中から、入力部３１が受け付けた選択信号に基づいて関心領域を選択する。 The control unit 81 includes a region of interest setting unit 361, a display control unit 362, a control parameter changing unit 363, a bookmark registration unit 811 and a region of interest selection unit 812. The bookmark registration unit 811 has a function of adding information indicating that the region of interest has been registered in the bookmark. The region of interest selection unit 812 selects a region of interest from among the regions of interest registered in the bookmark based on the selection signal received by the input unit 31.
　記憶部８２は、状態情報記憶部３７１と、関心領域情報記憶部３７２と、レイアウト情報記憶部３７３と、プログラム記憶部３７４と、ブックマーク情報記憶部８２１とを有する。ブックマーク情報記憶部８２１は、関心領域設定部３６１が設定した関心領域のうち、入力部３１が受け付けた登録指示信号に基づいてブックマークに登録された関心領域の情報を記憶する。 The storage unit 82 includes a state information storage unit 371, a region of interest information storage unit 372, a layout information storage unit 373, a program storage unit 374, and a bookmark information storage unit 821. The bookmark information storage unit 821 stores information of the regions of interest registered in the bookmark based on the registration instruction signal received by the input unit 31 among the regions of interest set by the region of interest setting unit 361.
　以上の構成を有するオペレータステーション８において、入力部３１が関心領域のブックマークの登録指示信号の入力を受け付けると、ブックマーク登録部８１１が該当する関心領域の情報に対してブックマーク登録情報を付加し、ブックマーク情報記憶部８２１へ格納する。ブックマーク登録情報が付加された関心領域情報は、拡大トレンド画面生成部３５３が拡大トレンド画面データを生成した後も、ブックマーク情報記憶部８２１によって記憶される。 In the operator station 8 having the above configuration, when the input unit 31 receives the input of the registration instruction signal of the bookmark of the region of interest, the bookmark registration unit 811 adds the bookmark registration information to the information of the corresponding region of interest, It is stored in the information storage unit 821. The region of interest information to which the bookmark registration information is added is stored in the bookmark information storage unit 821 even after the enlargement trend screen generation unit 353 generates the enlargement trend screen data.
　図２４は、本実施の形態３に係る表示装置であるオペレータステーション８が実行する表示方法の概要を示すフローチャートである。まず、トレンド画面データの生成処理（ステップＳ６１）およびトレンド画面の表示処理（ステップＳ６２）は、図４のステップＳ１およびＳ２にそれぞれ対応している。 FIG. 24 is a flowchart showing an outline of a display method executed by the operator station 8 which is a display device according to the third embodiment. First, the process of generating trend screen data (step S61) and the process of displaying a trend screen (step S62) correspond to steps S1 and S2 in FIG. 4, respectively.
　この後、入力部３１がブックマーク登録済の関心領域選択処理の開始指示信号の入力を受け付けたか否か（ステップＳ６３）に応じて、オペレータステーション８は異なる処理へ移行する。 Thereafter, the operator station 8 shifts to different processing depending on whether or not the input unit 31 receives the input of the start instruction signal of the region of interest selection processing in which the bookmark has been registered (step S63).
　まず、ステップＳ６３において、入力部３１がブックマーク登録済の関心領域選択処理の開始指示信号の入力を受け付けない場合（ステップＳ６３：Ｎｏ）を説明する。この場合において、入力部３１が拡大処理の開始指示信号の入力を受け付けた場合（ステップＳ６４：Ｙｅｓ）、オペレータステーション８は、拡大処理を行う（ステップＳ６５）。本実施の形態３においても、開始指示信号は、ユーザが入力部３１のマウスを操作することによってトレンド画面上の所望の位置にマウスポインタを移動した後、マウスボタンをクリックすることによって入力される。なお、ステップＳ６４で入力部３１が拡大処理の開始指示信号の入力を受け付けない場合（ステップＳ６４：Ｎｏ）、オペレータステーション８は、後述するステップＳ６７へ移行する。 First, the case where the input unit 31 does not receive the input of the start instruction signal of the region of interest selection processing in which the bookmark registration has been performed in step S63 will be described (step S63: No). In this case, when the input unit 31 receives the input of the start instruction signal of the enlargement process (step S64: Yes), the operator station 8 performs the enlargement process (step S65). Also in the third embodiment, the start instruction signal is input by clicking the mouse button after the user moves the mouse pointer to a desired position on the trend screen by operating the mouse of the input unit 31. . When the input unit 31 does not receive the input of the enlargement process start instruction signal in step S64 (step S64: No), the operator station 8 shifts to step S67 described later.
　以下、図２５に示すフローチャートを参照して、オペレータステーション８が行う拡大処理（ステップＳ６５）の概要を説明する。まず、ステップＳ８１～Ｓ８７の処理は、図６に示すステップＳ１１～Ｓ１７の処理に順次対応している。なお、ステップＳ８２において入力部３１が関心領域の選択入力を受け付けない場合（ステップＳ８２：Ｎｏ）、オペレータステーション８は、後述するステップＳ９１へ移行する。 The outline of the enlargement process (step S65) performed by the operator station 8 will be described below with reference to the flowchart shown in FIG. First, the process of steps S81 to S87 sequentially corresponds to the process of steps S11 to S17 shown in FIG. When the input unit 31 does not receive the selection input of the region of interest in step S82 (step S82: No), the operator station 8 proceeds to step S91 described later.
　ステップＳ８７に続くステップＳ８８において、入力部３１が、選択が確定した関心領域のブックマーク登録指示信号の入力を受け付けた場合（ステップＳ８８：Ｙｅｓ）、オペレータステーション３は、該当する関心領域をブックマーク登録する（ステップＳ８９）。図２６は、関心領域をブックマーク登録する処理の詳細を示すフローチャートである。以下の説明では、選択が確定した関心領域の数がＮ（≧１）であったとする。まず、オペレータステーション８は、関心領域の数を示すカウンタｎを１に初期化する（ステップＳ１０１）。 In step S88 following step S87, when the input unit 31 receives an input of a bookmark registration instruction signal of the region of interest for which selection has been determined (step S88: Yes), the operator station 3 bookmarks the corresponding region of interest. (Step S89). FIG. 26 is a flowchart showing the details of the process of bookmarking a region of interest. In the following description, it is assumed that the number of regions of interest for which selection has been determined is N (≧ 1). First, the operator station 8 initializes a counter n indicating the number of regions of interest to 1 (step S101).
　この後、表示制御部３６２は、全関心領域表示画面に第ｎ関心領域の登録を確認する表示を重畳して表示部３４に表示させる（ステップＳ１０２）。図２７は、表示部３４が表示する登録確認画面の表示例を示す図である。具体的には、図２７は、図８に示す全関心領域表示画面１０３において、第１関心領域２５１に対する登録確認画面の表示例を示す図である。図２７に示す登録確認画面１２１において、第１関心領域２５１の境界線は第２関心領域２５２の境界線よりも太線で記載されている。また、登録確認画面１２１では、登録確認表示部４０１が表示されている。登録確認表示部４０１には、「登録しますか？」という文章が表示されるとともに、「Ｙｅｓ」および「Ｎｏ」のボタンが表示される。これら２つのボタンのいずれかにユーザがマウスポインタＭを位置合わせしてマウスをクリックすると、「Ｙｅｓ」または「Ｎｏ」の表示に応じた信号の入力受け付けがなされる。 Thereafter, the display control unit 362 superimposes a display for confirming registration of the nth region of interest on the entire region of interest display screen and causes the display unit 34 to display the superimposed image (step S102). FIG. 27 is a diagram showing a display example of a registration confirmation screen displayed by the display unit 34. As shown in FIG. Specifically, FIG. 27 is a view showing a display example of a registration confirmation screen for the first region of interest 251 in the entire region of interest display screen 103 shown in FIG. In the registration confirmation screen 121 illustrated in FIG. 27, the boundary of the first region of interest 251 is described with a thicker line than the boundary of the second region of interest 252. Further, on the registration confirmation screen 121, a registration confirmation display unit 401 is displayed. The registration confirmation display unit 401 displays a sentence "Do you want to register?" And displays buttons "Yes" and "No". When the user aligns the mouse pointer M with either of these two buttons and clicks the mouse, input of a signal according to the display of “Yes” or “No” is accepted.
　入力部３１が第ｎ関心領域の登録指示信号の入力を受け付けた場合（ステップＳ１０３：Ｙｅｓ）、ブックマーク登録部８１１は、第ｎ関心領域の情報にブックマーク登録情報を付加し、ブックマーク情報記憶部８２１へ格納する登録処理を行う（ステップＳ１０４）。 When the input unit 31 receives the input of the registration instruction signal of the nth region of interest (step S103: Yes), the bookmark registration unit 811 adds the bookmark registration information to the information of the nth region of interest, and the bookmark information storage unit 821 A registration process for storing the image data is performed (step S104).
　続いて、オペレータステーション８は、カウンタｎを１増やす処理を行う（ステップＳ１０５）。なお、入力部３１が第ｎ関心領域の登録指示信号の入力を受け付けない場合（ステップＳ１０３：Ｎｏ）にも、オペレータステーション８はステップＳ１０５の処理を行う。 Subsequently, the operator station 8 performs a process of increasing the counter n by 1 (step S105). In addition, even when the input unit 31 does not receive the input of the registration instruction signal of the nth region of interest (step S103: No), the operator station 8 performs the process of step S105.
　ステップＳ１０５の後、オペレータステーション８は、カウンタｎが選択された関心領域の数Ｎ以下であるか否かを判定する（ステップＳ１０６）。カウンタｎがＮ以下である場合（ステップＳ１０６：Ｙｅｓ）、オペレータステーション８は、ステップＳ１０２へ戻る。一方、カウンタｎがＮより大きい場合（ステップＳ１０６：Ｎｏ）、オペレータステーション８は、ブックマーク登録処理を終了する。 After step S105, the operator station 8 determines whether the counter n is equal to or less than the number N of the selected regions of interest (step S106). If the counter n is less than or equal to N (step S106: Yes), the operator station 8 returns to step S102. On the other hand, when the counter n is larger than N (step S106: No), the operator station 8 ends the bookmark registration process.
　再び図２５を参照して、以上説明した関心領域のブックマーク登録処理（ステップＳ８９）の後の処理を説明する。拡大トレンド画面生成部３５３は、確定した関心領域の拡大トレンド画面データを生成する（ステップＳ９０）。この後、オペレータステーション８は、拡大処理を終了してメインルーチンへ戻る。 Referring back to FIG. 25, the process after the bookmark registration process (step S89) of the region of interest described above will be described. The enlarged trend screen generation unit 353 generates enlarged trend screen data of the determined region of interest (step S90). Thereafter, the operator station 8 ends the enlargement process and returns to the main routine.
　ステップＳ８８において、入力部３１が、関心領域のブックマーク登録指示信号の入力を受け付けない場合（ステップＳ８８：Ｎｏ）、オペレータステーション８はステップＳ９０へ移行する。 In step S88, when the input unit 31 does not receive the input of the bookmark registration instruction signal of the region of interest (step S88: No), the operator station 8 proceeds to step S90.
　ステップＳ９１において、入力部３１が拡大処理を終了する信号の入力を受け付けた場合（ステップＳ９１：Ｙｅｓ）、オペレータステーション８は拡大処理を終了してメインルーチンへ戻る。一方、ステップＳ９１において、入力部３１が拡大処理を終了する信号の入力を受け付けない場合（ステップＳ９１：Ｎｏ）、オペレータステーション８はステップＳ８２へ戻る。 In step S91, when the input unit 31 receives an input of a signal for ending the enlargement process (step S91: Yes), the operator station 8 ends the enlargement process and returns to the main routine. On the other hand, when the input unit 31 does not receive the input of the signal for ending the enlargement process in step S91 (step S91: No), the operator station 8 returns to step S82.
　以上説明したステップＳ６５の拡大処理に続く処理を、再び図２４を参照して説明する。ステップＳ６５での拡大処理の後、拡大トレンド画面データが生成されて存在している場合（ステップＳ６６：Ｙｅｓ）、オペレータステーション８は後述するステップＳ７２へ移行する。 A process following the enlargement process of step S65 described above will be described again with reference to FIG. After the enlargement processing in step S65, if the enlargement trend screen data is generated and exists (step S66: Yes), the operator station 8 shifts to step S72 described later.
　一方、ステップＳ６６において、拡大トレンド画面データが生成されていない場合（ステップＳ６６：Ｎｏ）、制御部８１は、状態情報記憶部３７１が記憶する状態情報が更新されているか否かを判断する（ステップＳ６７）。判断の結果、状態情報が更新されている場合（ステップＳ６７：Ｙｅｓ）、オペレータステーション８はステップＳ６１へ戻る。一方、判断の結果、状態情報が更新されていない場合（ステップＳ６７：Ｎｏ）、オペレータステーション８はステップＳ６８へ移行する。 On the other hand, when the enlarged trend screen data is not generated in step S66 (step S66: No), the control unit 81 determines whether the state information stored in the state information storage unit 371 is updated (step S66) S67). As a result of the determination, if the state information is updated (step S67: Yes), the operator station 8 returns to step S61. On the other hand, as a result of the determination, when the state information is not updated (step S67: No), the operator station 8 shifts to step S68.
　ステップＳ６８において、入力部３１がトレンド画面表示終了の指示信号の入力を受け付けた場合（ステップＳ６８：Ｙｅｓ）、オペレータステーション８はトレンド画面表示処理を終了する。一方、入力部３１がトレンド画面表示終了の指示信号の入力を受け付けない場合（ステップＳ６８：Ｎｏ）、オペレータステーション８はステップＳ６７へ戻る。 In step S68, when the input unit 31 receives the input of the instruction signal for ending the trend screen display (step S68: Yes), the operator station 8 ends the trend screen display processing. On the other hand, when the input unit 31 does not receive the input of the instruction signal for ending the trend screen display (step S68: No), the operator station 8 returns to step S67.
　次に、ステップＳ６３において、入力部３１がブックマーク登録済の関心領域選択処理の開始指示信号の入力を受け付けた場合（ステップＳ６３：Ｙｅｓ）を説明する。この場合、オペレータステーション８は、関心領域選択処理を行う（ステップＳ６９）。 Next, the case where the input unit 31 receives the input of the start instruction signal of the region of interest selection processing in which the bookmark registration has been performed in step S63 will be described (step S63: Yes). In this case, the operator station 8 performs a region of interest selection process (step S69).
　図２８は、関心領域選択処理の概要を示すフローチャートである。まず、表示制御部３６２はブックマーク登録済みの関心領域を選択するための選択用画面を表示部３４に表示させる（ステップＳ１１１）。図２９は、表示部３４における選択用画面の表示例を示す図である。図２９に示す選択用画面５０１は、複数のブックマーク登録済み関心領域の始点に相当する日時をメニュー表示している。選択用画面５０１では、マウスポインタＭが指示しているメニューを識別可能に表示する。図２９では、ブックマーク登録済みの関心領域を示す複数のメニューのうち、メニュー「２．２０１３／５／２０　１８：３０」が選択された状態を示している。この日時は、対応する関心領域の始点の情報を示している。ここで、メニューの変更は、例えばユーザがマウスホイールまたはキーボードを操作することによって行われる。図２９に示す状態でユーザがマウスをクリックすることにより、入力部３１はメニュー「２．２０１３／５／２０　１８：３０」に対応する関心領域の選択入力を受け付ける。 FIG. 28 is a flowchart showing an outline of the region of interest selection process. First, the display control unit 362 causes the display unit 34 to display a selection screen for selecting a region of interest registered as a bookmark (step S111). FIG. 29 is a view showing a display example of the selection screen on the display unit 34. As shown in FIG. The selection screen 501 shown in FIG. 29 displays a menu of dates and times corresponding to the start points of a plurality of bookmark registered interest regions. The selection screen 501 displays the menu designated by the mouse pointer M in a distinguishable manner. FIG. 29 illustrates a state in which the menu “2. 2013/5/20 18:30” is selected among the plurality of menus indicating the region of interest registered as a bookmark. The date and time indicate information on the start point of the corresponding region of interest. Here, the change of the menu is performed, for example, by the user operating the mouse wheel or the keyboard. When the user clicks the mouse in the state shown in FIG. 29, the input unit 31 receives the selection input of the region of interest corresponding to the menu “2. 2013/5/20 18:30”.
　この後、入力部３１がブックマーク登録済みの関心領域の選択入力を受け付けた場合（ステップＳ１１２：Ｙｅｓ）、関心領域選択部８１２は、選択された関心領域の情報をブックマーク情報記憶部８２１から取得して関心領域表示画面生成部３５２へ出力する（ステップＳ１１３）。 Thereafter, when the input unit 31 receives a selection input of a region of interest already registered as a bookmark (step S112: Yes), the region of interest selection unit 812 acquires information of the selected region of interest from the bookmark information storage unit 821. It outputs to the region-of-interest display screen generation unit 352 (step S113).
　ステップＳ１１３に続いて、関心領域表示画面生成部３５２は、関心領域選択部８１２から出力された関心領域の情報に基づいて選択関心領域表示画面データを生成する（ステップＳ１１４）。その後、表示制御部３６２は、ステップＳ１１４で生成された選択関心領域表示画面データに対応する選択関心領域表示画面を表示部３４に表示させる（ステップＳ１１５）。これによりユーザは、ブックマーク登録された関心領域のうち所望の関心領域を閲覧することができる。 Subsequent to step S113, the region of interest display screen generation unit 352 generates selected region of interest display screen data based on the information of the region of interest output from the region of interest selection unit 812 (step S114). Thereafter, the display control unit 362 causes the display unit 34 to display a selected region of interest display screen corresponding to the selected region of interest display screen data generated in step S114 (step S115). This allows the user to browse a desired region of interest out of the bookmarked regions of interest.
　図３０は、選択関心領域表示画面の表示例を示す図である。同図に示す選択関心領域表示画面５０２は、トレンド表示領域に表示され、タイトル表示領域５１１と、トレンド表示領域５２１とを有する。タイトル表示領域５１１には、選択された関心領域の始点の日時情報（「２．２０１３／５／２０　１８：３０」）に加え、拡大ボタン５１２、戻るボタン５１３、および進むボタン５１４が表示される。関心領域５２２は、トレンド表示領域５２１の中央に位置している。トレンド表示領域５２１の下方には、「続行？」という文字と、「Ｙｅｓ」、「Ｎｏ」のボタンが表示されている。ユーザは、他の関心領域の選択を希望する場合にはマウスポインタＭを「Ｙｅｓ」ボタンに位置合わせしてマウスをクリックする。一方、ユーザは、関心領域の選択を終了する場合には、マウスポインタＭを「Ｎｏ」ボタンに位置合わせしてマウスをクリックする。図３０において、トレンドグラフ等は省略して記載している。なお、タイトルに関心領域の始点の日時情報を表示する代わりに、ユーザが設定入力したタイトルや内部計器のＴＡＧ情報等を表示するようにしてもよい。 FIG. 30 is a diagram showing a display example of the selected region of interest display screen. The selected region of interest display screen 502 shown in the figure is displayed in the trend display region, and has a title display region 511 and a trend display region 521. In the title display area 511, in addition to date and time information ("2. 2013/5/20 18:30") of the start point of the selected region of interest, an enlargement button 512, a back button 513, and a forward button 514 are displayed. . The region of interest 522 is located at the center of the trend display region 521. In the lower part of the trend display area 521, the characters "Continue" are displayed and buttons "Yes" and "No" are displayed. When the user desires to select another region of interest, the user aligns the mouse pointer M with the “Yes” button and clicks the mouse. On the other hand, when ending the selection of the region of interest, the user aligns the mouse pointer M with the “No” button and clicks the mouse. In FIG. 30, the trend graph and the like are omitted. Note that instead of displaying the date and time information of the start point of the region of interest in the title, the title set by the user and the TAG information of the internal instrument may be displayed.
　拡大ボタン５１２は、表示中の関心領域の拡大指示信号の入力を受け付ける機能を有している。拡大ボタン５１２にマウスポインタを合わせた状態でマウスがクリックされると、関心領域の拡大トレンド画面が生成される。なお、関心領域の内部にマウスポインタを合わせてクリックまたはダブルクリック等の操作を行うことによって拡大トレンド画面の表示指示を入力する構成としてもよい。 The enlargement button 512 has a function of receiving an input of an enlargement instruction signal of a region of interest being displayed. When the mouse is clicked with the mouse pointer placed on the enlargement button 512, an enlargement trend screen of the region of interest is generated. Note that the display instruction of the enlarged trend screen may be input by placing the mouse pointer inside the region of interest and performing an operation such as click or double click.
　戻るボタン５１３は、一つ前に登録された関心領域へ表示を移行する指示入力を受け付ける。図３１は、図３０に示す選択関心領域表示画面５０２において、戻るボタン５１３が選択された場合に表示される関心領域画面の表示例を示す図である。図３１に示す関心領域表示画面５０３は、タイトル表示領域５３１と、トレンド表示領域５４１とを有する。タイトル表示領域５３１には、選択された関心領域の始点の日時情報（「１．２０１３／２／９　１２：１０」）に加え、拡大ボタン５３２、戻るボタン５３３、および進むボタン５３４が表示されている。関心領域５４２は、トレンド表示領域５４１の中央に位置している。図３１においても、トレンドグラフ等は省略して記載している。 The back button 513 receives an instruction input to shift the display to the region of interest registered immediately before. FIG. 31 is a view showing a display example of a region of interest screen displayed when the back button 513 is selected on the selected region of interest display screen 502 shown in FIG. The region of interest display screen 503 shown in FIG. 31 has a title display region 531 and a trend display region 541. In addition to the date and time information ("1. 2013/2/9 12: 10") of the start point of the selected region of interest, the title display area 531 displays an enlargement button 532, a back button 533, and a forward button 534. There is. The region of interest 542 is located at the center of the trend display region 541. Also in FIG. 31, the trend graph etc. is omitted and described.
　進むボタン５１４は、一つ後に登録された関心領域へ表示を移行する指示入力を受け付ける。例えば、図３０に示す選択関心領域表示画面５０２において、進むボタン５１４が選択されると、図２９の選択画面におけるメニュー「３．２０１４／１／１５　９：００」に相当する関心領域表示画面が表示部３４で表示されることとなる。 A forward button 514 receives an instruction input to shift the display to a region of interest registered one later. For example, in the selected region of interest display screen 502 shown in FIG. 30, when the forward button 514 is selected, the region of interest display screen corresponding to the menu "3. 2014/1/15 9:00" in the selection screen of FIG. It will be displayed on the display unit 34.
　この後、入力部３１が選択続行の指示信号の入力を受け付けた場合（ステップＳ１１６：Ｙｅｓ）、オペレータステーション８はステップＳ１１２に戻る。一方、入力部３１が選択続行の指示信号の入力を受け付けず、終了指示信号の入力を受け付けた場合（ステップＳ１１６：Ｎｏ）、オペレータステーション８は関心領域選択処理を終了する。 Thereafter, when the input unit 31 receives the input of the selection continuation instruction signal (Step S116: Yes), the operator station 8 returns to Step S112. On the other hand, when the input unit 31 does not receive the input of the instruction to continue selection and receives the input of the end instruction signal (Step S116: No), the operator station 8 ends the region-of-interest selection process.
　ステップＳ１１２において、入力部３１がブックマーク登録済みの関心領域の選択入力を受け付けた場合（ステップＳ１１２：Ｎｏ）、オペレータステーション８はステップＳ１１７へ移行する。 In step S112, when the input unit 31 receives a selection input of a region of interest registered as a bookmark (step S112: No), the operator station 8 proceeds to step S117.
　ステップＳ１１７において、入力部３１が関心領域選択処理を終了する信号の入力を受け付けた場合（ステップＳ１１７：Ｙｅｓ）、オペレータステーション８は関心領域選択処理を終了してメインルーチンへ戻る。一方、ステップＳ１１７において、入力部３１が関心領域変更処理を終了する信号の入力を受け付けない場合（ステップＳ１１７：Ｎｏ）、オペレータステーション８はステップＳ１１２へ戻る。 In step S117, when the input unit 31 receives an input of a signal for ending the region of interest selection processing (step S117: Yes), the operator station 8 ends the region of interest selection processing and returns to the main routine. On the other hand, when the input unit 31 does not receive the input of the signal for ending the region of interest change processing in step S117 (step S117: No), the operator station 8 returns to step S112.
　図３２は、すでに１つのブックマーク登録済み関心領域が選択された場合の選択用画面の表示例を示す図である。同図に示す選択用画面５０４では、複数のメニューのうち、選択済みのメニュー「２．２０１３／５／２０　１８：３０」は太字で囲まれている。図３２に示す状態でメニュー「４．２０１４／４／１０　１５：２５」が選択されると、選択関心領域表示画面では２つの関心領域が表示される。 FIG. 32 is a diagram showing a display example of the selection screen when one bookmark registered interest region is already selected. In the selection screen 504 shown in the figure, the selected menu “2.2013 / 5/20 18:30” is surrounded by bold face among the plurality of menus. When the menu “4. 2014/4/10 15: 25” is selected in the state shown in FIG. 32, two regions of interest are displayed on the selected region of interest display screen.
　図３３は、２つのブックマーク登録済み関心領域が選択された場合の表示部３４における選択関心領域表示画面の表示例を示す図である。図３３に示す選択関心領域表示画面５０５は、トレンド表示領域に表示され、２つのタイトル表示領域５５１、５５２と、２つのトレンド表示領域５５３、５５４とを有する。タイトル表示領域５５１には、１番目に選択された関心領域の始点の日時情報（「２．２０１３／５／２０　１８：３０」）が表示され、タイトル表示領域５５２には、２番目に選択された関心領域の始点の日時情報（「４．２０１４／４／１０　１５：２５」）が表示される。トレンド表示領域５５３には、１番目に選択された第１関心領域５５５（図３０の関心領域５２２に対応）が表示される。トレンド表示領域５５４には、２番目に選択された第２関心領域５５６が表示される。選択関心領域表示画面５０５においても、「続行？」という文字と、「Ｙｅｓ」、「Ｎｏ」のボタンが表示されている。この後、関心領域の選択が繰り返されるたびに、選択関心領域表示画面には、選択された全ての関心領域が表示される。なお、１番目に選択された方を下に表示してもよいし、２つの関心領域を左右に並べて表示してもよい。また、これらの文字およびボタンの表示位置は図３３に示すものに限られるわけではない。また、タイトル表示領域５５１、５５２に、拡大ボタン、戻るボタン、および進むボタンを表示して、選択によってブックマーク登録済みの関心領域を切り換えることができるようにしてもよい。 FIG. 33 is a diagram showing a display example of a selected region of interest display screen on the display unit 34 when two bookmark registered regions of interest are selected. The selected region of interest display screen 505 shown in FIG. 33 is displayed in the trend display region, and has two title display regions 551 and 552 and two trend display regions 553 and 554. In the title display area 551, date and time information ("2. 2013/5/20 18:30") of the start point of the first selected interest area is displayed, and in the title display area 552, the second is selected. The date and time information ("4. 2014/4/10 15: 25") of the start point of the region of interest is displayed. The trend display area 553 displays a first selected first interest area 555 (corresponding to the interest area 522 in FIG. 30). In the trend display area 554, the second selected second interest area 556 is displayed. Also in the selected region of interest display screen 505, the characters “Continue” are displayed and buttons “Yes” and “No” are displayed. Thereafter, every time the selection of the region of interest is repeated, the selected region of interest display screen displays all the selected regions of interest. The first selected one may be displayed below, or two regions of interest may be displayed side by side. Also, the display positions of these characters and buttons are not limited to those shown in FIG. In addition, an enlargement button, a back button, and a forward button may be displayed in the title display areas 551 and 552 so that the region of interest registered as a bookmark can be switched by selection.
　以上説明した関心領域選択処理（ステップＳ６９）の後、入力部３１が関心領域の拡大指示信号の入力を受け付けた場合（ステップＳ７０：Ｙｅｓ）、オペレータステーション８はステップＳ７１へ移行する。一方、入力部３１が関心領域の拡大指示信号の入力を受け付けない場合（ステップＳ７０：Ｎｏ）、オペレータステーション８はステップＳ７４へ移行する。 If the input unit 31 receives an input of a region expansion instruction signal after the region of interest selection processing (step S69) described above (step S70: Yes), the operator station 8 proceeds to step S71. On the other hand, when the input unit 31 does not receive the input of the instruction to expand the region of interest (step S70: No), the operator station 8 proceeds to step S74.
　まず、入力部３１が関心領域の拡大指示信号の入力を受け付けた場合（ステップＳ７０：Ｙｅｓ）を説明する。この場合、拡大トレンド画面生成部３５３は、関心領域をトレンド表示領域の全域へ拡大した拡大トレンド画面データを生成する（ステップＳ７１）。その後、表示制御部３６２は、拡大トレンド画面を表示部３４に表示させる（ステップＳ７２）。なお、拡大トレンド画面を表示する際に、その拡大トレンド画面がブックマーク登録されたものであるか否かを識別できるような表示を追加してもよい。 First, the case where the input unit 31 receives the input of the enlargement instruction signal of the region of interest (step S70: Yes) will be described. In this case, the enlarged trend screen generation unit 353 generates enlarged trend screen data in which the region of interest is expanded over the entire trend display region (step S71). Thereafter, the display control unit 362 causes the display unit 34 to display the enlarged trend screen (step S72). When the enlarged trend screen is displayed, a display may be added to identify whether the enlarged trend screen is bookmarked or not.
　ステップＳ７２の後、入力部３１がトレンド表示終了の指示信号の入力を受け付けたとき（ステップＳ７３：Ｙｅｓ）、オペレータステーション８はトレンド画面表示処理を終了する。一方、ステップＳ７３において、入力部３１がトレンド表示終了の指示信号の入力を受け付けない場合（ステップＳ７３：Ｎｏ）、オペレータステーション８はステップＳ７３を繰り返す。 After step S72, when the input unit 31 receives the input of the instruction signal for ending the trend display (step S73: Yes), the operator station 8 ends the trend screen display process. On the other hand, when the input unit 31 does not receive the input of the instruction signal for ending the trend display in step S73 (step S73: No), the operator station 8 repeats step S73.
　次に、入力部３１が関心領域の拡大指示信号の入力を受け付けない場合（ステップＳ７０：Ｎｏ）を説明する。この場合において、入力部３１が関心領域の変更指示入力を受け付けたとき（ステップＳ７４：Ｙｅｓ）、オペレータステーション８はステップＳ６９へ戻る。この場合、ステップＳ６９での関心領域選択処理は、初期化された状態から行われるものとするが、選択用画面において、前回の関心領域選択処理で選択した関心領域を識別可能な状態で表示するようにしてもよい。 Next, the case where the input unit 31 does not receive the input of the enlargement instruction signal of the region of interest (step S70: No) will be described. In this case, when the input unit 31 receives an instruction to change the region of interest (step S74: Yes), the operator station 8 returns to step S69. In this case, although the region of interest selection processing in step S69 is performed from the initialized state, the region of interest selected in the previous region of interest selection processing is displayed in a distinguishable state on the selection screen. You may do so.
　ステップＳ７０で入力部３１が関心領域の拡大指示信号の入力を受け付けない場合（ステップＳ７０：Ｎｏ）において、入力部３１が関心領域の変更指示入力を受け付けないとき（ステップＳ７４：Ｎｏ）、オペレータステーション８はステップＳ６７へ移行する。 When the input unit 31 does not receive the change instruction input of the region of interest (Step S74: No) when the input unit 31 does not receive the input of the instruction to expand the region of interest at Step S70 (Step S70: No), the operator station 8 shifts to step S67.
　以上説明した本発明の実施の形態３によれば、実施の形態１と同様の効果に加えて、ブックマーク登録機能を有することにより、ユーザは所望の関心領域を一時的ではなく記憶させておくことができる。また、本実施の形態３によれば、ブックマーク登録された関心領域を選択して閲覧する機能を有することにより、過去に選択した関心領域を有効に活用して、一段ときめの細かい監視を行うことが可能となる。 According to the third embodiment of the present invention described above, in addition to the same effect as the first embodiment, the user can store the desired region of interest not temporarily, by having the bookmark registration function. Can. Further, according to the third embodiment, by having a function of selecting and browsing the bookmarked region of interest, it is possible to effectively utilize the region of interest selected in the past and perform one-step and fine-grained monitoring. Is possible.
　なお、本実施の形態３において、ブックマーク登録済みの関心領域が選択された場合において、その周辺にブックマーク登録済みの他の関心領域が存在しているとき、これらを一括して表示するようにしてもよい。図３４は、この場合の関心領域表示画面の表示例を示す図である。同図に示す関心領域表示画面５０６は、タイトル表示領域５６１と、トレンド表示領域５７１とを有する。タイトル表示領域５６１には、選択された関心領域の始点の日時情報（「３．２０１４／１／１５　９：００」）に加え、拡大ボタン５６２、戻るボタン５６３、および進むボタン５６４が表示される。トレンド表示領域５７１には、選択された関心領域５７２に加えて、その周辺でブックマーク登録済みの２つの関心領域５７３、５７４が同時に表示されている。このような表示方法を採用することにより、ユーザはより効率的に過去に選択してブックマーク登録された関心領域の情報を得ることができる。 In the third embodiment, when a region of interest registered in a bookmark is selected, if there is another region of interest registered in the bookmark in the vicinity, the regions of interest are displayed collectively. It is also good. FIG. 34 is a diagram showing a display example of the region of interest display screen in this case. The region of interest display screen 506 shown in the figure has a title display area 561 and a trend display area 571. In the title display area 561, in addition to the date and time information ("3. 2014/1/15 9:00") of the start point of the selected region of interest, an enlargement button 562, a back button 563 and a forward button 564 are displayed. . In the trend display area 571, in addition to the selected area of interest 572, two areas of interest 573 and 574 bookmarked in the vicinity thereof are simultaneously displayed. By adopting such a display method, the user can more efficiently obtain information on a region of interest selected and bookmarked in the past.
　図３４に示す場合において、例えば関心領域５７２だけを太枠で表示するなどして他の関心領域５７３、５７４との差別化を図り、ユーザが選択した関心領域５７２を明示するようにしてもよい。この場合には、ユーザが選択した関心領域をトレンド表示領域の中央に配置させる必要はない。 In the case shown in FIG. 34, for example, only the region of interest 572 may be displayed in a thick frame or the like to differentiate it from the other regions of interest 573 and 574, and the region of interest 572 selected by the user may be clearly indicated. . In this case, it is not necessary to center the region of interest selected by the user in the trend display area.
　ここまで説明した図３４は、関心領域５７２と関心領域５７３、５７４とが重なっていない場合を例示している。これに対し、関心領域が重なっている場合には、他と重なっていない部分にマウスポインタを合わせてクリックすることで、全体を一意の関心領域として設定することができる。また、同様の操作を行うことで、重なった関心領域のうちの１つを拡大表示させるようにしてもよい。一方、重なっている関心領域をクリックした場合には、重なっている部分のみを新たな関心領域として設定するようにしてもよいし、重なっている関心領域から１つの関心領域を選択して拡大表示するための選択画面を表示してユーザに選択を促すようにしてもよい。 FIG. 34 described so far illustrates the case where the region of interest 572 and the regions of interest 573 and 574 do not overlap. On the other hand, when the regions of interest overlap, the whole can be set as a unique region of interest by placing the mouse pointer on a portion not overlapping with the other and clicking. Further, one of the overlapped regions of interest may be enlarged and displayed by performing the same operation. On the other hand, when the overlapping region of interest is clicked, only the overlapping portion may be set as a new region of interest, or one region of interest is selected from the overlapping regions of interest and enlarged. A selection screen for setting may be displayed to prompt the user to make a selection.
　なお、本実施の形態３において、ブックマーク情報記憶部８２１をデータベースステーション４に設けてもよい。この場合には、第２通信部３３を介してデータベースステーション４との間で適宜通信を行うことにより、上述した表示方法を実現することとなる。 In the third embodiment, the bookmark information storage unit 821 may be provided in the database station 4. In this case, by appropriately communicating with the database station 4 through the second communication unit 33, the display method described above is realized.
（実施の形態４）
　本発明の実施の形態４は、監視システムが備える表示装置において、トレンド画面上での多様な処理を実行することができ、特に異なる関心領域同士を容易にかつ正確に比較することができるとともに、関心領域を正確に把握できるようにすることを目的とする。本発明の実施の形態４は、複数の関心領域を拡大する際に、拡大対象とする領域を一段と正確に把握するための構成を有することを特徴とする。本実施の形態４に係る表示装置は、実施の形態１で説明したオペレータステーション３と同様の構成を有しており、監視システム１の一部をなす。以下、監視システム１が有する構成要素と同じ構成要素については、図２と同一の符号を付して説明する。 Embodiment 4
The fourth embodiment of the present invention can execute various processes on the trend screen in the display device included in the monitoring system, and in particular, can easily and accurately compare different regions of interest. The purpose is to make it possible to accurately grasp the area of interest. The fourth embodiment of the present invention is characterized in having a configuration for more accurately grasping a region to be enlarged when expanding a plurality of regions of interest. The display device according to the fourth embodiment has a configuration similar to that of the operator station 3 described in the first embodiment, and forms a part of the monitoring system 1. Hereinafter, the same components as the components of the monitoring system 1 will be described with the same reference numerals as in FIG.
　本実施の形態４において、関心領域表示画面生成部３５２は、トレンド表示領域の背景色の特性を変更することにより、背景色特性変更画面データを生成する。関心領域表示画面生成部３５２が変更する背景色の特性として、例えば透過性、光の三属性である色相、彩度、明度のいずれか一つ、または透過性および光の三属性のうち複数を組み合わせたものを挙げることができる。 In the fourth embodiment, the region-of-interest display screen generation unit 352 generates background color characteristic change screen data by changing the characteristic of the background color of the trend display region. The characteristics of the background color changed by the region-of-interest display screen generation unit 352 include, for example, one of transparency, three hues of light, saturation, lightness, or a plurality of transparency and light three attributes. A combination can be mentioned.
　図３５は、本実施の形態４に係る表示装置が実行する表示方法の処理の概要を示すフローチャートである。図３５では、オペレータステーション３が行うトレンド画面表示処理の概要を示している。 FIG. 35 is a flowchart showing an outline of processing of a display method performed by the display device according to the fourth embodiment. FIG. 35 shows an outline of the trend screen display process performed by the operator station 3.
　ステップＳ１３１、Ｓ１３２の処理は、実施の形態１で説明したステップＳ１、Ｓ２の処理にそれぞれ対応している。図３６は、表示部３４におけるトレンド画面の表示例を示す図である。同図に示すトレンド画面６０１は、３つの内部計器Ａ、Ｂ、Ｃのトレンドを表示している。トレンド画面６０１は、タイトル表示領域６１１と、数値情報表示領域６１２と、トレンド表示領域６１３とを有する。タイトル表示領域６１１には、「トレンド画面」というタイトルが表示されている。数値情報表示領域６１２には、例えば各内部計器の最新の測定値（ＰＶ）、データ取得期間、計測周期、縦罫線間隔等の数値情報が表示されている。トレンド表示領域６１３には、内部計器Ａ、Ｂ、Ｃのトレンドをそれぞれ示す折れ線のトレンドグラフ６１４、６１５、６１６に加え、表示範囲を縦方向および横方向にそれぞれスクロールするための縦スクロールバー６１７および横スクロールバー６１８が表示されている。なお、図３６では、３つの内部計器のトレンドを表示している場合を例示しているが、表示対象のトレンドの数はこれに限られるわけではない。 The processes of steps S131 and S132 correspond to the processes of steps S1 and S2 described in the first embodiment, respectively. FIG. 36 is a view showing a display example of the trend screen on the display unit 34. As shown in FIG. The trend screen 601 shown in the figure displays the trends of the three internal instruments A, B, and C. The trend screen 601 has a title display area 611, a numerical information display area 612, and a trend display area 613. In the title display area 611, a title "trend screen" is displayed. In the numerical information display area 612, for example, numerical information such as the latest measurement value (PV) of each internal instrument, a data acquisition period, a measurement period, and a vertical ruled line interval is displayed. In the trend display area 613, in addition to the line trend graphs 614, 615, 616 indicating the trends of the internal instruments A, B, C, respectively, a vertical scroll bar 617 for scrolling the display range vertically and horizontally and A horizontal scroll bar 618 is displayed. In addition, although the case where the trend of three internal instruments is displayed is illustrated in FIG. 36, the number of trends to be displayed is not limited to this.
　ステップＳ１３２の後、入力部３１が拡大処理の開始指示信号の入力を受け付けた場合（ステップＳ１３３：Ｙｅｓ）、オペレータステーション３は、拡大処理を行う（ステップＳ１３４）。本実施の形態４において、開始指示信号は、ユーザが入力部３１のマウスを操作することによってトレンド画面上の所望の位置にマウスポインタを移動した後、マウスボタンをクリックすることによって入力される。以下、図３７に示すフローチャートを参照して、拡大処理の概要を説明する。 After step S132, when the input unit 31 receives an input of a start instruction signal of enlargement processing (step S133: Yes), the operator station 3 performs enlargement processing (step S134). In the fourth embodiment, the start instruction signal is input by moving the mouse pointer to a desired position on the trend screen by operating the mouse of the input unit 31 and then clicking the mouse button. The outline of the enlargement process will be described below with reference to the flowchart shown in FIG.
　まず、関心領域表示画面生成部３５２は、ステップＳ１３３で入力された拡大処理の開始指示信号をトリガとして、トレンド表示領域の背景色の特性を変更することにより、背景色特性変更画面データを生成する（ステップＳ１５１）。続いて、表示制御部３６２は、背景色特性変更画面を表示部３４に表示させる（ステップＳ１５２）。図３８は、表示部３４における背景色特性変更画面の表示例を示す図である。同図に示す背景色特性変更画面６０２は、もとのトレンド画面６０１のトレンド表示領域６１３全体を網掛けした態様で表示している。この網掛けは、背景色の特性として、その透過性を低くして表示していることを模式的に示している。 First, the region-of-interest display screen generation unit 352 generates background color characteristic change screen data by changing the characteristic of the background color of the trend display area using the start instruction signal of the enlargement process input in step S133 as a trigger. (Step S151). Subsequently, the display control unit 362 causes the display unit 34 to display a background color characteristic change screen (step S152). FIG. 38 is a view showing a display example of the background color characteristic change screen on the display unit 34. As shown in FIG. The background color characteristic change screen 602 shown in the figure is displayed in a mode in which the entire trend display area 613 of the original trend screen 601 is shaded. This shaded area schematically indicates that the display is performed with the low transparency as a characteristic of the background color.
　ステップＳ１５２の後、オペレータステーション８は、関心領域の数を示すカウンタｎを１に初期化する（ステップＳ１５３）。 After step S152, the operator station 8 initializes a counter n indicating the number of regions of interest to 1 (step S153).
　続いて、入力部３１が第ｎ関心領域の選択入力を受け付けた場合（ステップＳ１５４：Ｙｅｓ）、オペレータステーション３はステップＳ１５５へ移行する。本実施の形態４において、拡大表示対象領域の選択入力操作は、マウスのドラッグ操作によって実現される。このドラッグ操作は、例えば通常のパーソナルコンピュータが備える表示モニタ上で表示されるウィンドウの面積を拡大する際に行う操作と同様である。マウスがドラッグされると、関心領域はマウスポインタの始点と終点を対角線とする矩形領域として定義される。 Subsequently, when the input unit 31 receives a selection input of the nth region of interest (step S154: Yes), the operator station 3 proceeds to step S155. In the fourth embodiment, the selection input operation of the enlarged display target area is realized by the drag operation of the mouse. This drag operation is, for example, the same as the operation performed when enlarging the area of a window displayed on a display monitor provided in a normal personal computer. When the mouse is dragged, the region of interest is defined as a rectangular region whose diagonals are the start and end points of the mouse pointer.
　関心領域設定部３６１は、入力部３１が受け付けた第ｎ関心領域の選択入力に基づいてトレンド画面における第ｎ関心領域の設定を行い（ステップＳ１５５）、設定した情報を関心領域情報記憶部３７２へ一時的に格納する。 The region of interest setting unit 361 sets the nth region of interest on the trend screen based on the selection input of the nth region of interest received by the input unit 31 (step S155), and sets the set information to the region of interest information storage unit 372 Temporarily store.
　続いて、関心領域表示画面生成部３５２は、関心領域情報記憶部３７２を参照し、設定された関心領域の背景色の特性を元に戻すことによって全関心領域表示画面データを生成する（ステップＳ１５６）。 Subsequently, the region-of-interest display screen generation unit 352 refers to the region-of-interest information storage unit 372 and generates the entire region-of-interest display screen data by restoring the set background color characteristic of the region of interest (Step S156). ).
　この後、表示制御部３６２は、全関心領域表示画面データに対応する全関心領域表示画面を表示部３４に表示させる（ステップＳ１５７）。図３９は、全関心領域表示画面の表示例（第１例）を示す図である。同図に示す全関心領域表示画面６０３は、トレンド表示領域６１３の中に第１関心領域６１３ａをトレンド画面６０１と同様の特性を有する背景色で表示する一方、非関心領域６１３ｂは背景色特性変更画面６０２と同様の特性を有する背景色で表示している。図３９では、ユーザが第１関心領域６１３ａの左上の頂点（図３８を参照）から右下の頂点までマウスでドラッグ操作を行うことによって関心領域を設定した場合を示している（第１関心領域６１３ａ内の破線の矢印Ｌを参照）。矢印Ｌは、図３８の背景色特性変更画面６０２から図３９の全関心領域表示画面６０３に至るまでのマウスポインタＭの軌跡を示す仮想的な線であって実際の画面上に表示されるわけではない。ただし、軌跡を明示するために画面上で表示させるようにすることももちろん可能である。 Thereafter, the display control unit 362 causes the display unit 34 to display the entire region of interest display screen corresponding to the entire region of interest display screen data (step S157). FIG. 39 is a diagram showing a display example (first example) of the entire region of interest display screen. The entire region of interest display screen 603 shown in the figure displays the first region of interest 613a in the trend display region 613 with a background color having the same characteristics as the trend screen 601, while the non-interest region 613b changes the background color characteristics. The background color having the same characteristics as the screen 602 is displayed. FIG. 39 shows a case where the user sets the region of interest by performing a drag operation with the mouse from the upper left vertex (see FIG. 38) of the first region of interest 613a to the lower right vertex (first region of interest See dashed arrow L in 613a). The arrow L is a virtual line indicating the locus of the mouse pointer M from the background color characteristic change screen 602 of FIG. 38 to the entire region of interest display screen 603 of FIG. 39 and is displayed on the actual screen. is not. However, it is of course possible to display the locus on the screen to clearly indicate the locus.
　図３９では、トレンド表示領域の略中央部に選択確定確認表示部６１９が表示される。選択確定確認表示部６１９には、「選択確定？」という文字とともに、「Ｙｅｓ」および「Ｎｏ」のボタンが表示される。ユーザがマウスポインタＭを用いて「Ｙｅｓ」を選択すると、第１関心領域６１３ａのみの選択で関心領域の選択が確定される。一方、ユーザがマウスポインタＭを用いて「Ｎｏ」を選択すると、さらに別の関心領域を選択することができる。 In FIG. 39, a selection confirmation confirmation display portion 619 is displayed substantially at the center of the trend display area. In the selection confirmation display portion 619, buttons of “Yes” and “No” are displayed together with the characters “selection confirmed?”. When the user selects "Yes" using the mouse pointer M, the selection of the first region of interest 613a is finalized and the selection of the region of interest is finalized. On the other hand, when the user selects "No" using the mouse pointer M, another region of interest can be selected.
　図４０は、関心領域表示画面の表示例（第２例）を示す図である。同図に示す全関心領域表示画面６０４は、トレンド表示領域６１３の中に第１関心領域６１３ａおよび第２関心領域６１３ｃをトレンド画面６０１と同様の特性を有する背景色でそれぞれ表示する一方、非関心領域６１３ｄは背景色特性変更画面６０２と同様の特性を有する背景色で表示している。図４０では、図３９に示す状態で、選択確定確認表示部６１９の「Ｎｏ」ボタンが選択された後、ユーザが第２関心領域６１３ｃを設定するためのマウスのドラッグ操作を行った状態を示している。この際、第２関心領域６１３ｃの領域が第１関心領域６１３ａと合同な領域となるように設定されている場合には、マウスのドラッグ操作とは無関係に第２関心領域６１３ｃを決定してもよい。全関心領域表示画面６０４にも、選択確定確認表示部６１９が表示されている。図４０に示す状態で関心領域の選択を確定する場合、ユーザはマウスの操作によって「Ｙｅｓ」ボタンを選択する一方、さらに別の関心領域を選択する場合には、「Ｎｏ」ボタンを選択すればよい。 FIG. 40 is a diagram showing a display example (second example) of the region of interest display screen. The entire region of interest display screen 604 shown in the same figure displays the first region of interest 613 a and the second region of interest 613 c in the trend display region 613 respectively with a background color having the same characteristics as the trend screen 601 while An area 613 d is displayed in a background color having the same characteristics as the background color characteristic change screen 602. FIG. 40 shows a state where the user has performed a mouse drag operation to set the second region of interest 613 c after the “No” button of the selection confirmation display portion 619 is selected in the state shown in FIG. 39. ing. At this time, if the area of the second region of interest 613c is set to be a region congruent with the first region of interest 613a, even if the second region of interest 613c is determined regardless of the dragging operation of the mouse. Good. A selection confirmation / confirmation display portion 619 is also displayed on the entire region of interest display screen 604. When the selection of the region of interest is confirmed in the state shown in FIG. 40, the user selects the “Yes” button by operating the mouse, while selecting another region of interest while selecting the “No” button. Good.
　ステップＳ１５７において全関心領域表示画面が表示部３４で表示された後、オペレータステーション８は、カウンタｎを１増やす処理を行う（ステップＳ１５８）。 After the entire region of interest display screen is displayed on the display unit 34 in step S157, the operator station 8 performs processing for increasing the counter n by 1 (step S158).
　続いて、入力部３１が関心領域の選択確定信号の入力を受け付けた場合（ステップＳ１５９：Ｙｅｓ）、拡大トレンド画面生成部３５３は、選択された領域をトレンド表示領域全域に拡大して表示する拡大トレンド画面データを生成する（ステップＳ１６０）。上述したように、ステップＳ１５９における選択確定信号の入力受付は、図３９等の選択確定確認表示部６１９の「Ｙｅｓ」ボタンを選択することにより実行される。 Subsequently, when the input unit 31 receives the input of the selection confirmation signal of the region of interest (step S159: Yes), the enlargement trend screen generation unit 353 enlarges and displays the selected region over the entire trend display region. Trend screen data is generated (step S160). As described above, the input acceptance of the selection decision signal in step S159 is executed by selecting the “Yes” button of the selection decision confirmation display unit 619 in FIG. 39 and the like.
　拡大トレンド画面生成部３５３は、関心領域をトレンド表示領域６１３の全域に拡大する。本実施の形態４において、拡大トレンド画面生成部３５３は、拡大する際に、拡大対象とする領域のトレンドに関する状態情報を再取得して、拡大するトレンド表示領域６１３のスケール（縦スケール、横スケール）に合わせて再描画する。このため、関心領域の縦横比（アスペクト比）がトレンド表示領域の縦横比と等しくない場合、縦方向と横方向の拡大率は異なる。例えば、図３９に示す場合、第１関心領域６１３ａの横方向の拡大率の方が縦方向の拡大率よりも大きくなる。 The enlarged trend screen generation unit 353 enlarges the region of interest to the entire trend display region 613. In the fourth embodiment, the enlargement trend screen generation unit 353 reacquires state information on the trend of the area to be enlarged when enlarging the scales of the trend display area 613 to be enlarged (vertical scale, horizontal scale, etc. Redraw according to). For this reason, when the aspect ratio (aspect ratio) of the region of interest is not equal to the aspect ratio of the trend display region, the enlargement ratios in the vertical direction and the horizontal direction are different. For example, in the case shown in FIG. 39, the enlargement factor in the horizontal direction of the first region of interest 613a is larger than the enlargement factor in the vertical direction.
　拡大トレンド画面生成部３５３は、第１関心領域６１３ａの周辺の非関心領域６１３ｂについても拡大トレンド画面データを生成する。この際、拡大トレンド画面生成部３５３は、拡大前の第１関心領域６１３ａおよび非関心領域６１３ｂの背景色の特性を保持したまま、拡大トレンド画面データを生成する。これにより、入力部３１が拡大トレンド画面のスクロール操作の入力を受け付けた場合、表示部３４でスクロール画面をスムーズに表示させることが可能となる（後述するステップＳ１３８を参照）。 The enlarged trend screen generation unit 353 also generates enlarged trend screen data for the non-interest region 613 b around the first region of interest 613 a. At this time, the enlargement trend screen generation unit 353 generates enlargement trend screen data while maintaining the characteristics of the background color of the first region of interest 613a and the non-interest region 613b before the enlargement. Thus, when the input unit 31 receives an input of a scroll operation on the enlarged trend screen, the display unit 34 can smoothly display the scroll screen (see step S138 described later).
　ステップＳ１５４において入力部３１が関心領域の選択入力を受け付けない場合（ステップＳ１５４：Ｎｏ）、およびステップＳ１５９において入力部３１が関心領域の選択確定信号の入力を受け付けない場合（ステップＳ１５９：Ｎｏ）、オペレータステーション３はステップＳ１６１へ移行する。 When the input unit 31 does not receive the selection input of the region of interest in step S154 (step S154: No), and when the input unit 31 does not receive the input of the selection determination signal of the region of interest in step S159 (step S159: No) The operator station 3 moves to step S161.
　ステップＳ１６１の処理は、実施の形態１で説明した図６のステップＳ１９と同様である。ステップＳ１６１において、入力部３１が拡大処理を終了する信号の入力を受け付けない場合（ステップＳ１６１：Ｎｏ）、オペレータステーション３はステップＳ１５４へ戻る。 The process of step S161 is the same as step S19 of FIG. 6 described in the first embodiment. In step S161, when the input unit 31 does not receive the input of the signal for ending the enlargement process (step S161: No), the operator station 3 returns to step S154.
　以上説明したステップＳ１３４の拡大処理に続く処理を説明する。ステップＳ１３４での拡大処理の後、拡大トレンド画面データが生成されて存在している場合（ステップＳ１３５：Ｙｅｓ）、表示制御部３６２は、拡大トレンド画面を表示部３４に表示させる（ステップＳ１３６）。図４１は、拡大トレンド画面の表示例（第１例）を示す図である。同図に示す拡大トレンド画面６０５は、図４０の全関心領域表示画面６０４における第１関心領域６１３ａおよび第２関心領域６１３ｃをトレンド表示領域６１３で縦に並べて拡大した画面である。この場合の第１関心領域６１３ａおよび第２関心領域６１３ｃの拡大率は、上述したように、横方向の拡大率が縦方向の拡大率よりも大きい。 A process following the enlargement process of step S134 described above will be described. After the enlargement processing in step S134, when the enlargement trend screen data is generated and exists (step S135: Yes), the display control unit 362 causes the display unit 34 to display the enlargement trend screen (step S136). FIG. 41 is a diagram showing a display example (first example) of the enlarged trend screen. The enlarged trend screen 605 shown in the figure is a screen in which the first region of interest 613a and the second region of interest 613c in the entire region of interest display screen 604 of FIG. As described above, the enlargement factors of the first region of interest 613a and the second interest region 613c in this case are larger than the enlargement factors of the vertical direction.
　この後、入力部３１が、拡大トレンド画面のスクロール操作の入力を受け付けた場合（ステップＳ１３７：Ｙｅｓ）、表示制御部３６２は、スクロール量に応じて表示する部分を変更して（スクロールして）表示部３４に表示させる（ステップＳ１３８）。図４２は、スクロール量に応じた拡大トレンド画面の表示例（第２例）を示す図である。同図に示す拡大トレンド画面６０６は、第１関心領域６１３ａに対して縦スクロールバー６１７ａを用いて画面を上向きにスクロールする一方、横スクロールバー６１８ａを用いて画面を右向きにスクロールするとともに、第２関心領域６１３ｃに対して縦スクロールバー６１７ｂを用いて画面を上向きにスクロールする一方、横スクロールバー６１８ｂを用いて画面を右向きにスクロールした後の表示例を示している。拡大トレンド画面６０６では、第１関心領域６１３ａおよび第２関心領域６１３ｃと非関心領域６１３ｄの背景色の特性が全関心領域表示画面６０４と同じである。このため、ユーザは、拡大トレンド画面をスクロールした場合、第１関心領域６１３ａおよび第２関心領域６１３ｃと非関心領域６１３ｄの境界を正確に把握することができる。 Thereafter, when the input unit 31 receives an input of a scroll operation on the enlarged trend screen (step S137: Yes), the display control unit 362 changes a portion to be displayed according to the scroll amount (scrolls) It is displayed on the display unit 34 (step S138). FIG. 42 is a diagram showing a display example (second example) of the enlarged trend screen according to the scroll amount. The enlarged trend screen 606 shown in the figure scrolls the screen upward using the vertical scroll bar 617a with respect to the first region of interest 613a, while scrolling the screen rightward using the horizontal scroll bar 618a. An example display is shown after the screen is scrolled upward using the vertical scroll bar 617b with respect to the region of interest 613c, while the screen is scrolled rightward using the horizontal scroll bar 618b. In the enlarged trend screen 606, the characteristics of the background color of the first region of interest 613a, the second region of interest 613c, and the non-interest region 613d are the same as the entire region of interest display screen 604. Therefore, when the user scrolls the enlarged trend screen, the user can accurately grasp the boundaries between the first region of interest 613a and the second region of interest 613c and the non-interest region 613d.
　続いて、入力部３１が縮小指示の入力を受け付けた場合（ステップＳ１３９：Ｙｅｓ）、オペレータステーション３はステップＳ１３１へ戻る。 Subsequently, when the input unit 31 receives an input of a reduction instruction (step S139: Yes), the operator station 3 returns to step S131.
　ステップＳ１３９において、入力部３１が縮小表示の入力を受け付けない場合（ステップＳ１３９：Ｎｏ）において、トレンド表示終了の指示信号の入力を受け付けたとき（ステップＳ１４０：Ｙｅｓ）、オペレータステーション３はトレンド画面表示処理を終了する。一方、ステップＳ１４０において、入力部３１がトレンド表示終了の指示信号の入力を受け付けない場合（ステップＳ１４０：Ｎｏ）、オペレータステーション３はステップＳ１３７へ戻る。 In step S139, when the input unit 31 does not receive the input of the reduction display (step S139: No), when the input of the command signal for ending the trend display is received (step S140: Yes), the operator station 3 displays the trend screen End the process. On the other hand, when the input unit 31 does not receive the input of the instruction signal for ending the trend display in step S140 (step S140: No), the operator station 3 returns to step S137.
　ステップＳ１３３において、入力部３１が拡大処理の開始指示信号の入力を受け付けない場合（ステップＳ１３３：Ｎｏ）、およびステップＳ１３５において、拡大トレンド画面データが生成されていない場合（ステップＳ１３５：Ｎｏ）、制御部３６は、状態情報記憶部３７１が記憶する状態情報が更新されているか否かを判断する（ステップＳ１４１）。判断の結果、状態情報が更新されている場合（ステップＳ１４１：Ｙｅｓ）、オペレータステーション３はステップＳ１３１へ戻る。一方、判断の結果、状態情報が更新されていない場合（ステップＳ１４１：Ｎｏ）、オペレータステーション３はステップＳ１４２へ移行する。ステップＳ１４２の処理は、実施の形態１で説明した図４のステップＳ９と同様である。 When the input unit 31 does not receive the input of the start instruction signal of the enlargement processing in step S133 (step S133: No), and when the enlargement trend screen data is not generated in step S135 (step S135: No) The unit 36 determines whether the state information stored in the state information storage unit 371 is updated (step S141). As a result of the determination, when the state information is updated (step S141: Yes), the operator station 3 returns to step S131. On the other hand, if the state information is not updated as a result of the determination (step S141: No), the operator station 3 proceeds to step S142. The process of step S142 is the same as step S9 of FIG. 4 described in the first embodiment.
　ステップＳ１３７において、拡大トレンド画面のスクロール操作の入力を受け付けない場合（ステップＳ１３７：Ｎｏ）、オペレータステーション３はステップＳ１３９へ移行する。 In step S137, when the input of the scroll operation on the enlarged trend screen is not received (step S137: No), the operator station 3 proceeds to step S139.
　以上説明した本発明の実施の形態４によれば、実施の形態１と同様の効果に加え、拡大対象の領域として設定される関心領域をそれ以外の非関心領域とは異なる背景色の特性で表示する関心領域表示画面を生成するため、表示画面の一部を拡大する際に、関心領域を正確に把握することができる。 According to the fourth embodiment of the present invention described above, in addition to the same effect as the first embodiment, the region of interest set as the region to be enlarged is different in the characteristic of the background color different from other regions of non-interest Since the region of interest display screen to be displayed is generated, the region of interest can be accurately grasped when a part of the display screen is enlarged.
　また、本実施の形態４によれば、非関心領域では背景色の透過性を低下させることで関心領域との特性の違いを生み出しているため、非関心領域のトレンドも把握することができる。 Further, according to the fourth embodiment, since the difference in characteristics with the region of interest is created by reducing the transparency of the background color in the region of non-interest, the trend of the region of non-interest can also be grasped.
　また、本実施の形態４によれば、拡大トレンド画面を生成する際、関心領域周辺の非関心領域も拡大するため、スクロールすることによって関心領域の周辺のトレンドも確認することができる。加えて、非関心領域の背景色の特性は拡大前後で同じであるため、ユーザは拡大後も関心領域と非関心領域を明確に区別することができる。 Further, according to the fourth embodiment, when the enlarged trend screen is generated, since the non-interest region around the region of interest is also enlarged, the trend around the region of interest can be confirmed by scrolling. In addition, since the characteristics of the background color of the non-interest area are the same before and after the enlargement, the user can clearly distinguish the interest area from the non-interest area even after the enlargement.
　また、本実施の形態４によれば、ユーザはマウスのドラッグアンドドロップ操作を行うだけで、関心領域の設定および拡大トレンド画面の生成を実行することができるため、簡単な操作で所望の拡大トレンド画面を見ることができる。 Further, according to the fourth embodiment, the user can perform setting of the region of interest and generation of the enlarged trend screen only by performing the drag and drop operation of the mouse, so that the desired enlargement trend can be performed by a simple operation. You can see the screen.
　ところで、トレンド画面のようにトレンドグラフを表示する画面では、例えば関心領域を単なる枠で表示しても、グラフとの見分けがつきにくくなってしまうおそれがある。これに対して、本実施の形態４においては、関心領域と非関心領域で背景色の特性を変更しているため、トレンドグラフを含むような画面内で関心領域を設定する場合であっても、関心領域を明確に認識することが可能となる。 By the way, in a screen that displays a trend graph, such as a trend screen, for example, even if the region of interest is displayed as a simple frame, it may be difficult to distinguish the graph from the graph. On the other hand, in the fourth embodiment, since the characteristics of the background color are changed in the region of interest and the region of non-interest, even when the region of interest is set in the screen including the trend graph. , It becomes possible to clearly recognize the region of interest.
（実施の形態４の変形例１）
　図４３は、本実施の形態４の変形例１に係る表示部３４における拡大トレンド画面の表示例を示す図である。同図に示す拡大トレンド画面６０７は、図４０に示す第１関心領域６１３ａおよび第２関心領域６１３ｃの縦横の比率を変えずに同じ倍率でそれぞれ拡大して表示したものである。拡大トレンド画面６０７のトレンド表示領域６１３’内の第１関心領域６１３ａ’および第２関心領域６１３ｃ’では、縦方向が最大である一方、横方向は最大ではない。このため、拡大トレンド画面では、横方向に沿って非関心領域６１３ｄ’が表示されている。なお、拡大トレンド画面６０７は、２つの関心領域の横幅がほぼ一致した場合を示しているが、これはあくまでも一例に過ぎない。 (Modification 1 of Embodiment 4)
FIG. 43 is a diagram showing a display example of the enlarged trend screen on the display unit 34 according to the first modification of the fourth embodiment. The enlarged trend screen 607 shown in the figure is enlarged at the same magnification and displayed without changing the aspect ratio of the first region of interest 613a and the second region of interest 613c shown in FIG. In the first region of interest 613a ′ and the second region of interest 613c ′ in the trend display region 613 ′ of the enlarged trend screen 607, the vertical direction is the largest while the horizontal direction is not the largest. Therefore, in the enlarged trend screen, the non-interest region 613d 'is displayed along the horizontal direction. Although the enlarged trend screen 607 shows the case where the widths of the two regions of interest are substantially the same, this is merely an example.
（実施の形態４の変形例２）
　図４４は、本実施の形態４の変形例２に係る表示部３４における拡大トレンド画面の表示例を模式的に示す図である。同図に示す拡大トレンド画面６０８は、トレンド表示領域６１３’’の第１関心領域６１３ａ’’および第２関心領域６１３ｃ’’の表示範囲が、各表示領域の全域よりも小さくなっており、周縁部に非関心領域６１３ｄ’’が表示されている。このような表示を行うことにより、ユーザは拡大トレンド画面でも、関心領域と非関心領域の境界を正確に把握することができる。 (Modification 2 of Embodiment 4)
FIG. 44 is a diagram schematically showing a display example of the enlarged trend screen on the display unit 34 according to the second modification of the fourth embodiment. In the enlarged trend screen 608 shown in the figure, the display range of the first region of interest 613 a ′ ′ and the second region of interest 613 c ′ ′ of the trend display region 613 ′ ′ is smaller than the entire region of each display region. A non-interest region 613 d ′ ′ is displayed on the part. By performing such display, the user can accurately grasp the boundary between the region of interest and the region of non-interest even on the enlarged trend screen.
　以上説明した本実施の形態４の変形例１および２が、実施の形態４と同様の効果を奏するものであることはいうまでもない。 It goes without saying that the first and second modifications of the fourth embodiment described above provide the same effects as the fourth embodiment.
（実施の形態５）
　本発明の実施の形態５は、監視システムが備える表示装置において、トレンド画面上での多様な処理を実行することができ、特にユーザが所望する関心領域を記憶させておくことを目的とする。本発明の実施の形態５は、１つの関心領域を拡大する際に、拡大対象とする領域を一段と正確に把握するための構成を有することを特徴とする。図４５は、本実施の形態５に係る表示装置であるオペレータステーションの構成を示すブロック図である。同図に示すオペレータステーション９は、実施の形態３で説明したオペレータステーション８と同様の構成を有しており、監視システム１の一部をなす。以下、監視システム１が有する構成要素と同じ構成要素については、図２３と同一の符号を付して説明する。 Fifth Embodiment
The fifth embodiment of the present invention is intended to be able to execute various processes on a trend screen in a display device provided in a monitoring system, and in particular to store a region of interest desired by a user. The fifth embodiment of the present invention is characterized in having a configuration for more accurately grasping a region to be enlarged when expanding one region of interest. FIG. 45 is a block diagram showing a configuration of an operator station which is a display device according to the fifth embodiment. The operator station 9 shown in the figure has the same configuration as the operator station 8 described in the third embodiment, and forms a part of the monitoring system 1. Hereinafter, the same components as the components of the monitoring system 1 will be described with the same reference numerals as in FIG.
　オペレータステーション９が備える画像処理部９１は、トレンド画面データを生成するトレンド画面生成部９１１と、トレンド画面で設定される関心領域を表示する関心領域表示画面データを生成する関心領域表示画面生成部９１２と、関心領域を拡大した拡大トレンド画面データを生成する拡大トレンド画面生成部９１３と、を有する。画像処理部９１は、ＣＰＵや各種演算回路等を用いて実現される。 The image processing unit 91 included in the operator station 9 generates a trend screen data generation unit 911 that generates trend screen data, and a region of interest display screen generation unit 912 that generates region of interest display screen data that displays a region of interest set on the trend screen. And an enlarged trend screen generation unit 913 that generates enlarged trend screen data in which the region of interest is expanded. The image processing unit 91 is realized using a CPU, various arithmetic circuits, and the like.
　関心領域表示画面生成部９１２は、トレンド画面の中で関心領域として設定された領域をそれ以外の非関心領域と識別可能に表示する関心領域表示画面データを生成する。具体的には、関心領域表示画面生成部９１２は、入力部３１が拡大処理の開始指示信号の入力を受け付けると、トレンド表示領域の背景色の特性を変更することにより、背景色特性変更画面データを生成する。その後、入力部３１が関心領域の選択入力を受け付けると、関心領域表示画面生成部９１２は、トレンド表示領域の中に関心領域をトレンド画面と同様の特性を有する背景色で表示する一方、非関心領域は背景色特性変更画面と同様の特性を有する背景色で表示している。関心領域表示画面生成部９１２が変更する背景色の特性は、上述した実施の形態４と同様である。 The region-of-interest display screen generation unit 912 generates region-of-interest display screen data that displays the region set as the region of interest in the trend screen so as to be distinguishable from the other non-interest regions. Specifically, when the input unit 31 receives an input of a start instruction signal of enlargement processing, the region of interest display screen generation unit 912 changes the characteristic of the background color of the trend display region to change the background color characteristic change screen data. Generate Thereafter, when the input unit 31 receives the selection input of the region of interest, the region-of-interest display screen generation unit 912 displays the region of interest in the trend display region with a background color having the same characteristics as the trend screen, The area is displayed in a background color having the same characteristics as the background color characteristic change screen. The characteristic of the background color changed by the region of interest display screen generation unit 912 is the same as that of the fourth embodiment described above.
　オペレータステーション９が実行するトレンド画面表示処理の概要は、図２４に示すフローチャートと同様であるが、拡大処理（ステップＳ６５）の内容が異なる。以下、図４６に示すフローチャートを参照して、オペレータステーション９が実行する拡大処理の概要を説明する。 The outline of the trend screen display process executed by the operator station 9 is the same as the flowchart shown in FIG. 24, but the contents of the enlargement process (step S65) are different. The outline of the enlargement processing performed by the operator station 9 will be described below with reference to the flowchart shown in FIG.
　図４６において、ステップＳ１７１～Ｓ１７２の処理は、図３７のステップＳ１５１～Ｓ１５２の処理とそれぞれ同様である。図４７は、表示部３４におけるトレンド画面の表示例を示す図である。図４７に示すトレンド画面７０１は、図３６に示すトレンド画面６０１と同様の構成を有している。このため、トレンド画面６０１と対応する部分にはトレンド画面６０１と同じ符号を付してある。また、トレンド画面７０１も、３つの内部計器Ａ、Ｂ、Ｃのトレンドをそれぞれ示す折れ線のトレンドグラフ７１１、７１２、７１３を表示する場合を例示しているが、表示対象のトレンドの数はこれに限られるわけではない。 In FIG. 46, the processes of steps S171 to S172 are the same as the processes of steps S151 to S152 of FIG. FIG. 47 is a view showing a display example of the trend screen on the display unit 34. As shown in FIG. The trend screen 701 shown in FIG. 47 has the same configuration as the trend screen 601 shown in FIG. Therefore, parts corresponding to the trend screen 601 are given the same reference numerals as the trend screen 601. In addition, the trend screen 701 also illustrates the case where the trend graphs 711, 712, and 713 of broken lines respectively indicating the trends of the three internal instruments A, B, and C are displayed, but the number of trends to be displayed is It is not limited.
　図４８は、表示部３４における背景色特性変更画面の表示例を示す図である。同図に示す背景色特性変更画面７０２は、もとのトレンド画面７０１のトレンド表示領域６１３全体を網掛けした態様で表示している。この網掛けは、背景色の特性として、その透過性を低くして表示していることを模式的に示している。 FIG. 48 is a view showing a display example of the background color characteristic change screen on the display unit 34. As shown in FIG. The background color characteristic change screen 702 shown in the figure is displayed in a mode in which the entire trend display area 613 of the original trend screen 701 is shaded. This shaded area schematically indicates that the display is performed with the low transparency as a characteristic of the background color.
　この後、入力部３１が関心領域の選択入力を受け付けた場合（ステップＳ１７３：Ｙｅｓ）、オペレータステーション９はステップＳ１７４へ移行する。本実施の形態５において、拡大表示対象領域の選択入力操作は、実施の形態４と同様にマウスのドラッグ操作によって実現される。 Thereafter, when the input unit 31 receives a selection input of a region of interest (step S173: Yes), the operator station 9 proceeds to step S174. In the fifth embodiment, the selection input operation of the enlarged display target area is realized by the drag operation of the mouse as in the fourth embodiment.
　関心領域設定部３６１は、入力部３１が受け付けた関心領域の選択入力に基づいて、トレンド画面における関心領域の設定を行い、設定した情報を関心領域情報記憶部３７２へ一時的に格納する（ステップＳ１７４）。 The region of interest setting unit 361 sets the region of interest on the trend screen based on the selection input of the region of interest received by the input unit 31, and temporarily stores the set information in the region of interest information storage unit 372 (step S174).
　続いて、関心領域表示画面生成部９１２は、関心領域情報記憶部３７２を参照し、設定された関心領域の背景色の特性を元に戻すことによって関心領域表示画面データを生成する（ステップＳ１７５）。 Subsequently, the region-of-interest display screen generation unit 912 generates region-of-interest display screen data by referencing the region-of-interest information storage unit 372 and restoring the set background color characteristic of the region of interest (Step S175). .
　この後、表示制御部３６２は、関心領域表示画面を表示部３４に表示させる（ステップＳ１７６）。図４９は、関心領域表示画面の表示例を示す図である。同図に示す関心領域表示画面７０３は、トレンド表示領域６１３の中に関心領域７２１をトレンド画面７０１と同様の特性を有する背景色で表示する一方、非関心領域７２２は背景色特性変更画面７０２と同様の特性を有する背景色で表示している。図４９では、ユーザが関心領域７２１の左上の頂点（図４８を参照）から右下の頂点までマウスでドラッグ操作を行うことによって関心領域を設定した場合を示している（関心領域７２１内の破線の矢印Ｌを参照）。なお、図４９においても、矢印Ｌは仮想的な線であるが、画面上で表示させるようにしてもよい。 Thereafter, the display control unit 362 causes the display unit 34 to display the region of interest display screen (step S176). FIG. 49 is a diagram showing a display example of the region of interest display screen. The region of interest display screen 703 shown in the figure displays the region of interest 721 in the trend display region 613 with a background color having the same characteristics as the trend screen 701 while the region of non-interest 722 displays the background color characteristic change screen 702. It is displayed in a background color having similar characteristics. FIG. 49 shows a case where the user sets the region of interest by performing a drag operation with the mouse from the upper left vertex (see FIG. 48) of the region of interest 721 (see FIG. 48) to the lower right vertex (broken line in the region of interest 721) Arrow L)). Also in FIG. 49, the arrow L is a virtual line, but may be displayed on the screen.
　続いて、入力部３１が関心領域の選択確定信号の入力を受け付けた場合（ステップＳ１７７：Ｙｅｓ）において、入力部３１が確定した関心領域のブックマーク登録指示信号の入力を受け付けたとき（ステップＳ１７８：Ｙｅｓ）、ブックマーク登録部８１１は、該当する関心領域の情報に対してブックマーク登録情報を付加し、ブックマーク情報記憶部８２１へ格納する（ステップＳ１７９）。 Subsequently, when the input unit 31 receives an input of a selection confirmation signal of a region of interest (Step S177: Yes), when an input of a bookmark registration instruction signal of a region of interest determined by the input unit 31 is received (Step S178: Yes), the bookmark registration unit 811 adds the bookmark registration information to the information of the corresponding region of interest, and stores it in the bookmark information storage unit 821 (step S179).
　続いて、拡大トレンド画面生成部９１３は、選択された領域をトレンド表示領域６１３全域に拡大して表示する拡大トレンド画面データを生成する（ステップＳ１８０）。本実施の形態５において、選択確定信号は、実施の形態４と同様にマウスのドロップ操作によって実現される。図４９では、関心領域７２１の左上の頂点が始点であり、右下の頂点が終点である場合を示している。ステップＳ１８０の後、オペレータステーション９は拡大処理を終了してメインルーチン（図２４を参照）へ戻る。 Subsequently, the enlargement trend screen generation unit 913 generates enlargement trend screen data in which the selected area is enlarged and displayed in the entire trend display area 613 (step S180). In the fifth embodiment, the selection decision signal is realized by the drop operation of the mouse as in the fourth embodiment. FIG. 49 shows the case where the top left vertex of the region of interest 721 is the start point and the bottom right vertex is the end point. After step S180, the operator station 9 ends the enlargement process and returns to the main routine (see FIG. 24).
　図５０は、拡大トレンド画面の表示例を示す図である。同図に示す拡大トレンド画面７０４は、図４９の関心領域表示画面７０３における関心領域７２１をトレンド表示領域６１３の全域へ拡大した画面である。この場合の関心領域７２１の拡大率は、上述したように、横方向の拡大率が縦方向の拡大率よりも大きい。 FIG. 50 is a diagram showing a display example of the enlarged trend screen. The enlarged trend screen 704 shown in the figure is a screen in which the region of interest 721 in the region of interest display screen 703 of FIG. 49 is enlarged to the entire area of the trend display region 613. As described above, the enlargement factor of the region of interest 721 in this case is larger than the enlargement factor of the vertical direction.
　ステップＳ１７８において、入力部３１が、確定した関心領域のブックマーク登録指示信号の入力を受け付けない場合（ステップＳ１７８：Ｎｏ）、オペレータステーション９はステップＳ１８０へ移行する。 In step S178, when the input unit 31 does not receive the input of the bookmark registration instruction signal of the determined region of interest (step S178: No), the operator station 9 proceeds to step S180.
　ステップＳ１７３において入力部３１が関心領域の選択入力を受け付けない場合（ステップＳ１７３：Ｎｏ）、およびステップＳ１７７において入力部３１が関心領域の選択確定信号の入力を受け付けない場合（ステップＳ１７７：Ｎｏ）、オペレータステーション９はステップＳ１８１へ移行する。 When the input unit 31 does not receive the selection input of the region of interest in step S173 (step S173: No), and when the input unit 31 does not receive the input of the selection determination signal of the region of interest in step S177 (step S177: No) The operator station 9 proceeds to step S181.
　ステップＳ１８１において、入力部３１が拡大処理を終了する信号の入力を受け付けた場合（ステップＳ１８１：Ｙｅｓ）、オペレータステーション９は拡大処理を終了してメインルーチンへ戻る。一方、ステップＳ１８１において、入力部３１が拡大処理を終了する信号の入力を受け付けない場合（ステップＳ１８１：Ｎｏ）、オペレータステーション９はステップＳ１７３へ戻る。 In step S181, when the input unit 31 receives an input of a signal for ending the enlargement process (step S181: Yes), the operator station 9 ends the enlargement process and returns to the main routine. On the other hand, when the input unit 31 does not receive the input of the signal for ending the enlargement process in step S181 (step S181: No), the operator station 9 returns to step S173.
　以上説明した本発明の実施の形態５によれば、トレンド画面上で多様な処理を行うことができる。特に、本実施の形態５によれば、ブックマーク登録機能を有することにより、ユーザは所望の関心領域を記憶させておくことができる。 According to the fifth embodiment of the present invention described above, various processes can be performed on the trend screen. In particular, according to the fifth embodiment, by providing the bookmark registration function, the user can store a desired region of interest.
　また、本実施の形態５によれば、ブックマーク登録された関心領域を選択して閲覧する機能を有することにより、過去に選択した関心領域を有効に活用して、一段ときめの細かい監視を行うことが可能となる。 Further, according to the fifth embodiment, by having the function of selecting and browsing the bookmarked region of interest, it is possible to effectively utilize the region of interest selected in the past and perform one-step and fine-grained monitoring. Is possible.
　また、本実施の形態５によれば、拡大対象の領域として設定される関心領域をそれ以外の非関心領域とは異なる背景色の特性で表示する関心領域表示画面を生成するため、表示画面の一部を拡大する際に、関心領域を正確に把握することができる。 Further, according to the fifth embodiment, in order to generate a region-of-interest display screen that displays the region of interest set as the region to be enlarged with the characteristic of the background color different from that of the other non-interest regions, When expanding a part, it is possible to accurately grasp the area of interest.
　また、本実施の形態５によれば、非関心領域では背景色の透過性を低下させる点や、拡大トレンド画面を生成する際、関心領域周辺の非関心領域も拡大する点が実施の形態４と同じであるため、実施の形態４と同様、ユーザは非関心領域のトレンドも把握することができたり、拡大後も関心領域と非関心領域を明確に区別したりすることができる。さらに、トレンドのようなトレンドグラフを表示する画面に対して好適である点も、実施の形態と同様である。 Further, according to the fifth embodiment, the fourth embodiment is characterized in that the transparency of the background color is reduced in the non-interest region, and the non-interest region around the region of interest is also expanded when generating the enlarged trend screen. As in the fourth embodiment, the user can grasp the trend of the non-interest region or can clearly distinguish the interest region from the non-interest region even after enlargement. Furthermore, the point suitable for the screen which displays a trend graph like a trend is also the same as that of the embodiment.
　また、本実施の形態５によれば、ブックマーク登録機能を有することにより、ユーザは所望の関心領域を一時的ではなく記憶させることができ。また、本実施の形態５によれば、ブックマーク登録された関心領域を選択して閲覧する機能を有することにより、過去に選択した関心領域を有効に活用して、一段ときめの細かい監視を行うことが可能となる。 Further, according to the fifth embodiment, by providing the bookmark registration function, the user can store the desired region of interest not temporarily. Further, according to the fifth embodiment, by having the function of selecting and browsing the bookmarked region of interest, it is possible to effectively utilize the region of interest selected in the past and perform one-step and fine-grained monitoring. Is possible.
　また、本実施の形態５によれば、実施の形態４と同様、ユーザはマウスのドラッグアンドドロップ操作を行うだけで関心領域を選択することができることに加え、関心領域の位置、形状または大きさを変更することができるため、関心領域の設定を一段と柔軟に行うことができる。 Further, according to the fifth embodiment, as in the fourth embodiment, the position, shape or size of the region of interest can be selected in addition to the fact that the user can select the region of interest simply by performing the drag and drop operation of the mouse. Can be changed, which allows more flexible setting of the region of interest.
　なお、実施の形態５において、図５０に示す拡大トレンド画面７０４から図４９に示す関心領域表示画面７０３へ戻る場合には、マウスホイールを操作することにより、操作量（回転量）に応じて徐々に画像を縮小していくようにしてもよい。この場合、ユーザは途中でマウスホイールの操作を止めることにより、中間状態のトレンド画面を見ることができる。ここで、関心領域と非関心領域の背景色の特性を保持したままとすれば、ユーザは画像を縮小している途中の段階でも関心領域と非関心領域を明確に識別することができるのでより好ましい。 In the fifth embodiment, when returning from the enlarged trend screen 704 shown in FIG. 50 to the region of interest display screen 703 shown in FIG. 49, by operating the mouse wheel, the mouse wheel is operated gradually. The image may be reduced. In this case, the user can view the trend screen in the intermediate state by stopping the operation of the mouse wheel on the way. Here, if the characteristics of the background color of the region of interest and the region of non-interest are kept, the user can clearly identify the region of interest and the region of non-interest even during the process of reducing the image. preferable.
　また、実施の形態５において、図５０に示す拡大トレンド画面７０４から図４９に示す関心領域表示画面７０３へ戻る場合、表示部で「戻る」と表示されたアイコンを選択することによって処理を開始するようにしてもよい。この場合には、拡大トレンド画面７０４から関心領域表示画面７０３へ徐々に縮小していくように表示すれば、上述したマウスホイール操作と同様の視覚的な効果を得ることができる。さらに、表示部で「停止」と表示されたアイコンを選択することによって縮小処理を停止させるような構成とすれば、マウスホイール操作を縮小途中で止めた場合と同様の効果を得ることができる。 Further, in the fifth embodiment, when returning from the enlarged trend screen 704 shown in FIG. 50 to the region of interest display screen 703 shown in FIG. 49, the process is started by selecting an icon displayed as “return” on the display unit. You may do so. In this case, by displaying the enlarged trend screen 704 so as to gradually reduce the size on the region of interest display screen 703, it is possible to obtain the same visual effect as the mouse wheel operation described above. Furthermore, if the reduction process is stopped by selecting the icon displayed as "stop" on the display unit, it is possible to obtain the same effect as when the mouse wheel operation is stopped halfway.
（その他の実施の形態）
　ここまで、本発明を実施するための形態を説明してきたが、本発明は上述した実施の形態１～５のみによって限定されるべきものではない。例えば、実施の形態１に対して、実施の形態２～４の少なくともいずれか１つの実施の形態の内容を組み合わせて実施することも可能である。 (Other embodiments)
Although the embodiments for carrying out the present invention have been described above, the present invention is not to be limited only by the above-described first to fifth embodiments. For example, it is possible to combine the contents of at least one of the second to fourth embodiments with the first embodiment.
　また、トレンド画面以外の各種監視システム用画面を表示する場合にも、上記同様の機能を具備させることが可能である。 Moreover, when displaying screens for various monitoring systems other than the trend screen, it is possible to provide the same function as described above.
　また、本明細書では、プラントに設置された機器の状態情報のトレンドについて説明してきたが、より一般にトレンドグラフを用いてトレンドを表示する場合に適用すれば、上記実施の形態と同様の効果を得ることができる。このようなトレンドとしては、例えば株価、為替、商品先物取引等のトレンドを挙げることができる。 In addition, although the present specification describes the trend of the state information of the devices installed in the plant, if applied to the case of displaying the trend using the trend graph more generally, the same effect as the above embodiment can be obtained. You can get it. As such a trend, for example, trends such as stock prices, exchange rates, and commodity futures can be cited.
　また、本明細書で記載したフローチャートにおける処理の順序はあくまでも一例に過ぎず、本発明を実施する際に矛盾のない範囲で変更することが可能である。 In addition, the order of processing in the flowcharts described in this specification is merely an example, and can be changed without contradiction when practicing the present invention.
　また、先に説明したＤＣＳ以外に、ＳＣＡＤＡ（Supervisory　Control　And　Data　Acquisition）ソフトが組み込まれた表示機能を有するパーソナルコンピュータによる監視システムや、プログラマブルコントローラと表示部とを備えたプログラマブルコントロールシステムによる監視システムに対しても、本発明を適用することができる。 In addition to the DCS described above, a monitoring system using a personal computer with a display function incorporating SCADA (Supervisory Control And Data Acquisition) software, and a monitoring system using a programmable control system with a programmable controller and a display unit. The present invention is also applicable to this case.
　１　監視システム
　２　制御装置
　３、８、９　オペレータステーション
　４　データベースステーション
　５　プリンタ
　６　制御ネットワーク
　７　情報ネットワーク
　３１　入力部
　３２　第１通信部
　３３　第２通信部
　３４　表示部
　３５、９１　画像処理部
　３６、８１　制御部
　３７、８２　記憶部
　１００　表示画面
　１００ａ　メニュー表示領域
　１００ｂ　状態情報表示領域
　１０１、６０１、７０１　トレンド画面
　１０２、１０３、１０４、１１１、６０３、６０４　全関心領域表示画面
　１０５、１０６、１０７、１０８、１０９、１１０、１１２、１１３、６０５、６０６、６０７、６０８、７０４　拡大トレンド画面
　１２１　登録確認画面
　２０１、６１４、６１５、６１６、７１１、７１２、７１３　トレンドグラフ
　２１１、２１２、２１３、２１４、２１５、２１６、２２１、２２１ａ、２２２、２２３、２２４、２２５、２２６、２３１　拡大トレンドグラフ
　２５１　第１関心領域
　２５２、２５４　第２関心領域
　２５３　第３関心領域
　３０１、３１１、５２１、５４１、５５３、５５４、５７１、６１３、６１３’、６１３’’　トレンド表示領域
　３０２、５５５、６１３ａ、６１３ａ’、６１３ａ’’　第１関心領域
　３０３、３０３ａ、５５６、６１３ｃ、６１３ｃ’、６１３ｃ’’　第２関心領域
　３５１、９１１　トレンド画面生成部
　３５２、９１２　関心領域表示画面生成部
　３５３、９１３　拡大トレンド画面生成部
　３６１　関心領域設定部
　３６２　表示制御部
　３６３　制御パラメータ変更部
　３７１　状態情報記憶部
　３７２　関心領域情報記憶部
　３７３　レイアウト情報記憶部
　３７４　プログラム記憶部
　４０１　登録確認表示部
　５０１、５０４　選択用画面
　５０２、５０５　選択関心領域表示画面
　５０３、５０６、７０３　関心領域表示画面
　５１１、５３１、５５１、５５２、５６１、６１１　タイトル表示領域
　５１２、５３２、５６２　拡大ボタン
　５１３、５３３、５６３　戻るボタン
　５１４、５３４、５６４　進むボタン
　５２２、５４２、５７２、５７３、５７４、７２１　関心領域
　６０２、７０２　背景色特性変更画面
　６１２　数値情報表示領域
　６１３ｂ、６１３ｄ、６１３ｄ’、６１３ｄ’’、７２２　非関心領域
　６１７、６１７ａ、６１７ｂ　縦スクロールバー
　６１８、６１８ａ、６１８ｂ　横スクロールバー
　６１９　選択確定確認表示部
　８１１　ブックマーク登録部
　８１２　関心領域選択部
　８２１　ブックマーク情報記憶部
　Ｍ　マウスポインタ
　Ｐ　プラント
　Ｐ１、Ｐ２　機器 Reference Signs List 1 monitoring system 2 control device 3, 8, 9 operator station 4 database station 5 printer 6 control network 7 information network 31 input unit 32 first communication unit 33 second communication unit 34 display unit 35, 91 image processing unit 36, 81 control Part 37, 82 Storage part 100 Display screen 100a Menu display area 100b Status information display area 101, 601, 701 Trend screen 102, 103, 104, 111, 603, 604 All ROI display screen 105, 106, 107, 108, 109 110, 112, 113, 605, 606, 607, 608, 704 Enlarged trend screen 121 Registration confirmation screen 201, 614, 615, 616, 711, 712, 713 Trend graph 211, 212, 213, 214, 215, 21 , 221, 221 a, 222, 223, 224, 225, 226, 231 enlarged trend graph 251, first region of interest 252, 254 second region of interest 253 third region of interest 301, 311, 521, 541, 553, 554, 571, 613, 613 ', 613''trend display area 302, 555, 613a, 613a', 613a '' first area of interest 303, 303a, 556, 613c, 613c ', 613c''second area of interest 351, 911 trend screen Generation unit 352, 912 Region of interest display screen generation unit 353, 913 Enlarged trend screen generation unit 361 Region of interest setting unit 362 Display control unit 363 Control parameter change unit 371 State information storage unit 372 Region of interest information storage unit 373 Layout information storage unit 374 Program storage section 401 registration confirmation table Part 501, 504 Selection screen 502, 505 Selection region of interest display screen 503, 506, 703 Region of interest display screen 511, 531, 551, 552, 561, 611 Title display region 512, 532, 562 Enlarge button 513, 533, 563 Back button 514, 534, 564 Forward button 522, 542, 572, 573, 574, 721 Region of interest 602, 702 Background color characteristic change screen 612 Numerical information display region 613b, 613d, 613d ', 613d'', 722 Region of no interest 617, 617a, 617b Vertical scroll bar 618, 618a, 618b Horizontal scroll bar 619 Selection confirmation confirmation display unit 811 Bookmark registration unit 812 Region of interest selection unit 821 Bookmark information storage unit M Mouse pointer P Plant P1, P2 Vessel

Claims (23)

  1. 　画像を表示可能な表示部と、
    　前記表示部の所定の表示領域に表示するトレンド画面のデータを生成するトレンド画面生成部と、
    　前記トレンド画面内で設定される互いに異なる複数の関心領域の情報を前記トレンド画面とともに表示する関心領域表示画面のデータを生成する関心領域表示画面生成部と、
    　前記複数の関心領域を拡大した拡大トレンド画面のデータを生成する拡大トレンド画面生成部と、
    　前記複数の関心領域の設定入力および前記拡大トレンド画面の生成指示入力を受け付ける入力部と、
    　前記トレンド画面、前記関心領域表示画面および前記拡大トレンド画面を前記表示部にそれぞれ表示させる表示制御部と、
    　を備えたことを特徴とする表示装置。     A display unit capable of displaying an image;
    A trend screen generating unit that generates data of a trend screen to be displayed in a predetermined display area of the display unit;
    A region-of-interest display screen generation unit that generates data of a region-of-interest display screen on which information on a plurality of different regions of interest set in the trend screen is displayed together with the trend screen;
    An enlarged trend screen generation unit that generates data of an enlarged trend screen in which the plurality of regions of interest are expanded;
    An input unit that receives setting inputs of the plurality of regions of interest and generation instruction inputs of the enlarged trend screen;
    A display control unit for displaying the trend screen, the region of interest display screen, and the enlarged trend screen on the display unit;
    The display apparatus characterized by having.
  2. 　前記拡大トレンド画面生成部は、
    　前記複数の関心領域を拡大して一つの方向に沿って並べることによって前記拡大トレンド画面のデータを生成することを特徴とする請求項１に記載の表示装置。     The enlarged trend screen generation unit
    The display device according to claim 1, wherein the data of the enlarged trend screen is generated by enlarging the plurality of regions of interest and arranging the regions of interest along one direction.
  3. 　前記拡大トレンド画面生成部は、
    　前記複数の関心領域を同じ大きさで並べることによって前記拡大トレンド画面のデータを生成することを特徴とする請求項２に記載の表示装置。     The enlarged trend screen generation unit
    The display device according to claim 2, wherein the data of the enlarged trend screen is generated by arranging the plurality of regions of interest in the same size.
  4. 　前記拡大トレンド画面生成部は、
    　前記複数の関心領域を並べる方向と直交する方向のスケールを互いに等しくすることによって前記拡大トレンド画面のデータを生成することを特徴とする請求項２に記載の表示装置。     The enlarged trend screen generation unit
    The display device according to claim 2, wherein the data of the enlarged trend screen is generated by equalizing the scales in the direction orthogonal to the arranging direction of the plurality of regions of interest.
  5. 　前記拡大トレンド画面生成部は、
    　前記複数の関心領域を拡大して重畳することによって前記拡大トレンド画面のデータを生成することを特徴とする請求項１に記載の表示装置。     The enlarged trend screen generation unit
    The display device according to claim 1, wherein data of the enlarged trend screen is generated by enlarging and overlapping the plurality of regions of interest.
  6. 　前記トレンド画面は、横軸を時間軸とする一方、縦軸を所定の測定値の軸として該測定値の時間変化を示すトレンドグラフを表示し、
    　前記拡大トレンド画面生成部は、
    　前記複数の関心領域をそれぞれ通過する前記トレンドグラフの各部分における線の特徴を関心領域ごとに変えることによって前記拡大トレンド画面のデータを生成することを特徴とする請求項５に記載の表示装置。     The trend screen displays a trend graph showing temporal change of the measurement value, with the horizontal axis as a time axis and the vertical axis as an axis of a predetermined measurement value,
    The enlarged trend screen generation unit
    The display device according to claim 5, wherein the data of the enlarged trend screen is generated by changing a line feature in each portion of the trend graph passing through each of the plurality of regions of interest for each region of interest.
  7. 　前記トレンド画面は、横軸を時間軸とする一方、縦軸を所定の測定値の軸として該測定値の時間変化を示すトレンドグラフを表示し、
    　前記拡大トレンド画面生成部は、
    　前記複数の関心領域を通過する前記トレンドグラフのいずれか２つにおける同じ時間の測定値の差が閾値以上である領域の背景色の特性と該閾値未満である領域の背景色の特性とを変えることによって前記拡大トレンド画面のデータを生成することを特徴とする請求項５に記載の表示装置。     The trend screen displays a trend graph showing temporal change of the measurement value, with the horizontal axis as a time axis and the vertical axis as an axis of a predetermined measurement value,
    The enlarged trend screen generation unit
    Change the characteristics of the background color of the region where the difference between the measurement values at the same time in any two of the trend graphs passing through the plurality of regions of interest is greater than or equal to the threshold and the characteristics of the background color of the region less than the threshold 6. The display device according to claim 5, wherein the data of the enlarged trend screen is generated thereby.
  8. 　前記複数の関心領域は、互いの面積および形状がそれぞれ同じであることを特徴とする請求項１に記載の表示装置。 The display device according to claim 1, wherein the plurality of regions of interest have the same area and shape as each other.
  9. 　前記拡大トレンド画面生成部は、
    　前記複数の関心領域の形状をぞれぞれ保持したまま拡大することを特徴とする請求項１に記載の表示装置。     The enlarged trend screen generation unit
    The display device according to claim 1, wherein the shape of the plurality of regions of interest is enlarged while being held respectively.
  10. 　前記入力部は、
    　前記複数の関心領域の各々における位置、面積または形状を変更する指示入力を受け付け可能であり、
    　前記関心領域表示画面生成部は、
    　前記入力部が受け付けた指示入力に基づいて前記関心領域表示画面における前記複数の関心領域の位置、形状または大きさを変更可能であることを特徴とする請求項１に記載の表示装置。     The input unit is
    It is possible to receive an instruction input for changing the position, area or shape in each of the plurality of regions of interest,
    The region-of-interest display screen generation unit
    The display device according to claim 1, wherein the position, the shape, or the size of the plurality of regions of interest on the region-of-interest display screen can be changed based on an instruction input received by the input unit.
  11. 　前記関心領域画面生成部は、
    　前記トレンド画面内で設定される前記複数の関心領域における背景色の特性と前記トレンド画面内の前記複数の関心領域以外の非関心領域における背景色の特性とが異なる関心領域表示画面のデータを生成することを特徴とする請求項１に記載の表示装置。     The region of interest screen generation unit
    Generates data of the region of interest display screen in which the characteristics of the background color in the plurality of regions of interest set in the trend screen and the characteristics of the background color in the non-interest regions other than the plurality of regions of interest in the trend screen are different The display device according to claim 1, further comprising:
  12. 　前記背景色の特性は、色の透過性であることを特徴とする請求項１１に記載の表示装置。 The display device according to claim 11, wherein the characteristic of the background color is color transparency.
  13. 　プラントに設置された複数の機器に接続された制御装置と通信可能に接続されてなり、
    　前記表示部は、
    　前記制御装置から前記複数の機器の状態をそれぞれ示す複数の状態情報を取得して表示することを特徴とする請求項１に記載の表示装置。     It is communicably connected to a controller connected to a plurality of devices installed in the plant,
    The display unit is
    The display device according to claim 1, wherein a plurality of pieces of state information respectively indicating states of the plurality of devices are acquired from the control device and displayed.
  14. 　前記トレンド画面は、
    　前記複数の状態情報の少なくともいずれか一つのトレンドを示すトレンドグラフを表示することを特徴とする請求項１３に記載の表示装置。     The trend screen is
    The display device according to claim 13, wherein a trend graph indicating a trend of at least one of the plurality of pieces of state information is displayed.
  15. 　画像を表示可能な表示部と、
    　前記表示部の所定の表示領域に表示するトレンド画面のデータを生成するトレンド画面生成部と、
    　前記トレンド画面内で設定される関心領域を識別可能に表示する関心領域表示画面のデータを生成する関心領域表示画面生成部と、
    　前記表示領域内で少なくとも前記関心領域を拡大した拡大トレンド画面のデータを生成する拡大トレンド画面生成部と、
    　前記関心領域の設定入力、前記拡大トレンド画面の生成指示入力および前記関心領域のブックマーク登録指示信号の入力を受け付ける入力部と、
    　前記トレンド画面、前記関心領域表示画面および前記拡大トレンド画面を前記表示部にそれぞれ表示させる表示制御部と、
    　前記入力部が入力を受け付けたブックマーク登録指示信号に基づいて、前記関心領域に対してブックマークに登録されたことを示す情報を付加するブックマーク登録部と、
    　を備えたことを特徴とする表示装置。     A display unit capable of displaying an image;
    A trend screen generating unit that generates data of a trend screen to be displayed in a predetermined display area of the display unit;
    A region-of-interest display screen generation unit for generating data of a region-of-interest display screen for identifiably displaying a region of interest set in the trend screen;
    An enlarged trend screen generation unit that generates data of an enlarged trend screen obtained by enlarging at least the region of interest in the display area;
    An input unit that receives an input of setting of the region of interest, an input of generation instruction of the enlarged trend screen, and an input of a bookmark registration instruction signal of the region of interest;
    A display control unit for displaying the trend screen, the region of interest display screen, and the enlarged trend screen on the display unit;
    A bookmark registration unit that adds information indicating that the region of interest has been registered in the bookmark based on the bookmark registration instruction signal that the input unit receives an input;
    The display apparatus characterized by having.
  16. 　前記入力部は、前記ブックマークに登録された前記関心領域の選択信号の入力を受け付け、
    　前記ブックマーク登録部によって前記ブックマークに登録された前記関心領域の情報を記憶する記憶部と、
    　前記記憶部から前記選択信号に対応する前記関心領域を選択する関心領域選択部と、
    　をさらに備えたことを特徴とする請求項１５に記載の表示装置。     The input unit receives an input of a selection signal of the region of interest registered in the bookmark;
    A storage unit storing information of the region of interest registered in the bookmark by the bookmark registration unit;
    A region of interest selection unit that selects the region of interest corresponding to the selection signal from the storage unit;
    The display device according to claim 15, further comprising:
  17. 　前記関心領域表示画面は、
    　前記トレンド画面内で設定される関心領域における背景色の特性と前記トレンド画面内の前記関心領域以外の非関心領域における背景色の特性とが異なることを特徴とする請求項１５に記載の表示装置。     The region of interest display screen is
    The display device according to claim 15, wherein a characteristic of a background color in a region of interest set in the trend screen and a characteristic of a background color in a non-interest region other than the region of interest in the trend screen are different. .
  18. 　プラントに設置された複数の機器に接続された制御装置と、
    　前記制御装置と通信可能に接続され、前記制御装置から前記複数の機器の状態をそれぞれ示す複数の状態情報を取得して前記表示部で表示する請求項１に記載の表示装置と、
    　を備えたことを特徴とする監視システム。     A controller connected to a plurality of devices installed in the plant;
    The display device according to claim 1, wherein the display device is connected to the control device in a communicable manner, and acquires a plurality of pieces of state information respectively indicating the states of the plurality of devices from the control device.
    The monitoring system characterized by having.
  19. 　プラントに設置された複数の機器に接続された制御装置と、
    　前記制御装置と通信可能に接続され、前記制御装置から前記複数の機器の状態をそれぞれ示す複数の状態情報を取得して前記表示部で表示する請求項１５に記載の表示装置と、
    　を備えたことを特徴とする監視システム。     A controller connected to a plurality of devices installed in the plant;
    The display device according to claim 15, wherein the display device is connected to the control device in a communicable manner, and acquires a plurality of pieces of state information respectively indicating the states of the plurality of devices from the control device.
    The monitoring system characterized by having.
  20. 　画像を表示可能な表示部を備えた表示装置が行う表示方法であって、
    　前記表示部の所定の表示領域にトレンド画面を表示するトレンド画面表示ステップと、
    　前記トレンド画面内に含まれる複数の関心領域の設定入力を受け付ける関心領域設定ステップと、
    　前記トレンド画面内で設定される複数の関心領域を示す情報を前記トレンド画面とともに表示する関心領域表示画面表示ステップと、
    　前記複数の関心領域を拡大した拡大トレンド画面を表示する拡大トレンド画面表示ステップと、
    　を含むことを特徴とする表示方法。     A display method performed by a display device provided with a display unit capable of displaying an image,
    A trend screen display step of displaying a trend screen in a predetermined display area of the display unit;
    A region of interest setting step for receiving setting input of a plurality of regions of interest included in the trend screen;
    A region of interest display screen display step of displaying information indicating a plurality of regions of interest set in the trend screen together with the trend screen;
    An enlarged trend screen display step of displaying an enlarged trend screen in which the plurality of regions of interest are expanded;
    A display method characterized in that
  21. 　画像を表示可能な表示部を備えた表示装置が行う表示方法であって、
    　前記表示部の所定の表示領域にトレンド画面を表示するトレンド画面表示ステップと、
    　前記トレンド画面内に含まれる関心領域の設定入力を受け付ける関心領域設定ステップと、
    　前記関心領域を識別可能に表示する関心領域表示画面を表示する関心領域表示画面表示ステップと、
    　前記表示領域内で少なくとも前記関心領域を拡大した拡大トレンド画面を表示する拡大トレンド画面表示ステップと、
    　ブックマーク登録指示信号の入力に応じて前記関心領域に対してブックマークに登録されたことを示す情報を付加するブックマーク登録ステップと、
    　を含むことを特徴とする表示方法。     A display method performed by a display device provided with a display unit capable of displaying an image,
    A trend screen display step of displaying a trend screen in a predetermined display area of the display unit;
    A region of interest setting step of receiving a setting input of a region of interest included in the trend screen;
    A region of interest display screen displaying step of displaying a region of interest display screen for identifiably displaying the region of interest;
    An enlarged trend screen display step of displaying an enlarged trend screen obtained by enlarging at least the region of interest in the display area;
    A bookmark registration step of adding information indicating that the region of interest has been registered in the bookmark in response to an input of a bookmark registration instruction signal;
    A display method characterized in that
  22. 　画像を表示可能な表示部を備えた表示装置に、
    　前記表示部の所定の表示領域にトレンド画面を表示するトレンド画面表示ステップと、
    　前記トレンド画面内に含まれる複数の関心領域の設定入力を受け付ける関心領域設定ステップと、
    　前記トレンド画面内で設定される複数の関心領域を示す情報を前記トレンド画面とともに表示する関心領域表示画面表示ステップと、
    　前記複数の関心領域を拡大した拡大トレンド画面を表示する拡大トレンド画面表示ステップと、
    　を実行させることを特徴とする表示プログラム。     In a display device provided with a display unit capable of displaying an image,
    A trend screen display step of displaying a trend screen in a predetermined display area of the display unit;
    A region of interest setting step for receiving setting input of a plurality of regions of interest included in the trend screen;
    A region of interest display screen display step of displaying information indicating a plurality of regions of interest set in the trend screen together with the trend screen;
    An enlarged trend screen display step of displaying an enlarged trend screen in which the plurality of regions of interest are expanded;
    The display program characterized by making it perform.
  23. 　画像を表示可能な表示部を備えた表示装置に、
    　前記表示部の所定の表示領域にトレンド画面を表示するトレンド画面表示ステップと、
    　前記トレンド画面内に含まれる関心領域の設定入力を受け付ける関心領域設定ステップと、
    　前記関心領域を識別可能に表示する関心領域表示画面を表示する関心領域表示画面表示ステップと、
    　前記表示領域内で少なくとも前記関心領域を拡大した拡大トレンド画面を表示する拡大トレンド画面表示ステップと、
    　ブックマーク登録指示信号の入力に応じて前記関心領域に対してブックマークに登録されたことを示す情報を付加するブックマーク登録ステップと、
    　を実行させることを特徴とする表示プログラム。     In a display device provided with a display unit capable of displaying an image,
    A trend screen display step of displaying a trend screen in a predetermined display area of the display unit;
    A region of interest setting step of receiving a setting input of a region of interest included in the trend screen;
    A region of interest display screen displaying step of displaying a region of interest display screen for identifiably displaying the region of interest;
    An enlarged trend screen display step of displaying an enlarged trend screen obtained by enlarging at least the region of interest in the display area;
    A bookmark registration step of adding information indicating that the region of interest has been registered in the bookmark in response to an input of a bookmark registration instruction signal;
    The display program characterized by making it perform.
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