WO2018216098A1 - Plant information sharing system - Google Patents

Plant information sharing system Download PDF

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Publication number
WO2018216098A1
WO2018216098A1 PCT/JP2017/019185 JP2017019185W WO2018216098A1 WO 2018216098 A1 WO2018216098 A1 WO 2018216098A1 JP 2017019185 W JP2017019185 W JP 2017019185W WO 2018216098 A1 WO2018216098 A1 WO 2018216098A1
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Prior art keywords
plant
maintenance
level
information
database
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PCT/JP2017/019185
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French (fr)
Japanese (ja)
Inventor
将士 平畠
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三菱電機株式会社
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Priority to PCT/JP2017/019185 priority Critical patent/WO2018216098A1/en
Publication of WO2018216098A1 publication Critical patent/WO2018216098A1/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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules

Definitions

  • the present invention relates to a plant information sharing system for transmitting information held by a plant monitoring control system to a plant maintenance system and sharing information.
  • Patent Document 1 The technology disclosed in Patent Document 1 below is configured to collect plant operation and maintenance field data from a power plant at a maintenance service base via a network, and perform monitoring, diagnosis, inspection, and the like of the power plant.
  • the information held by the plant supervisory control system includes information with different levels of confidentiality, and it is necessary to manage information according to the level of confidentiality and management of information transmission to the maintenance system side.
  • the technique of Patent Document 1 only plant operation and maintenance field data are transmitted via the Internet, and information management and transmission management according to information confidentiality are not performed.
  • a plant information sharing system that can perform information management and transmission management by dividing information held by a plant monitoring control system into a plurality of levels according to the contents is desired.
  • a plant information sharing system is a plant information sharing system that transmits information held by a plant monitoring and control system to a plant maintenance system, and performs information sharing.
  • the supervisory control system has a plant database hierarchically divided into three levels of at least a first level plant database, a second level plant database, and a third level plant database,
  • the first level plant database stores plant monitoring control information
  • the monitoring control system transmits the monitoring control information permitted to be transmitted in advance to the maintenance system in real time
  • the second level plant database stores setting values used in plant monitoring control, and the monitoring control system permits transmission of the setting value information requested from the maintenance system.
  • the maintenance system In the third-level plant database, past plant operation records are stored, and the plant operation records for the contents and period requested from the maintenance system are used as a result of determination as to whether or not transmission is permitted. Accordingly, it is transmitted to the maintenance system.
  • the information held by the plant monitoring and control system can be managed in a hierarchy divided into at least three levels.
  • the monitoring control information permitted to be transmitted in advance is transmitted to the maintenance system in real time. Can be monitored.
  • the monitoring control information permitted to be transmitted in advance is transmitted, it is possible to transmit only information necessary for maintenance and information that can be permitted for transmission due to confidentiality.
  • the setting values for monitoring control stored in the second level plant database the setting values requested from the maintenance system and determined to be permitted to be transmitted on the monitoring control system side are transmitted to the maintenance system. Therefore, it is possible to transmit only the setting values that allow transmission from the information necessary for maintenance and confidentiality.
  • the maintenance system can check the status of the monitoring control based on the transmitted set value and use it for maintenance.
  • the operation records of the past plant stored in the third level plant database it is the operation record of the plant for the contents and the period requested from the maintenance system, and it is determined that the transmission can be permitted on the supervisory control system side. Since the information is transmitted to the maintenance system, it can be transmitted only to the operation record of the plant during the period and the content that can be permitted to be transmitted due to the information necessary for maintenance and confidentiality.
  • the maintenance system can confirm the operation state of the plant based on the transmitted contents and the operation record of the plant during the period, and can use it for maintenance. Accordingly, information held in the plant monitoring control system can be divided into a plurality of levels according to the contents, and information management and transmission management can be performed.
  • FIG. 1 shows the schematic whole structure of the plant information sharing system which concerns on Embodiment 1 of this invention. It is a block diagram explaining the structure and process in the case of transmitting information from the monitoring control system which concerns on Embodiment 1 of this invention to the system for maintenance. It is a block diagram explaining a structure and a process in case the maintenance system which concerns on Embodiment 1 of this invention produces a maintenance plan. It is a hardware block diagram of the monitoring control system (plant server) which concerns on Embodiment 1 of this invention. It is a hardware block diagram of the system for maintenance (maintenance server) concerning Embodiment 1 of the present invention.
  • FIG. 1 is a diagram showing a schematic overall configuration of a plant information sharing system 1.
  • the plant information sharing system 1 is an information sharing system that transmits information held by the plant monitoring control system 10 to the plant maintenance system 50 to share information.
  • the maintenance system 50 is provided in a plant manufacturer, a maintenance service company that performs maintenance service of the plant, or the like.
  • the maintenance system 50 can maintain a plurality of plants. Below, the monitoring control system 10 of one plant is demonstrated as a representative.
  • Plants include various facilities such as production facilities such as power plants and factories, and social infrastructure facilities such as water and sewage systems, electric power, railways, roads, rivers, dams and buildings. In the present embodiment, a case where the plant is a power plant will be described.
  • the monitoring control system 10 is composed of a computer that monitors and controls a plant.
  • the monitoring control system 10 includes a plant computer 11 that monitors and controls each part of the plant, a plant server 12 that collectively stores various plant data, It has.
  • the plant computer 11 drives and controls various actuators such as valves and pumps provided in each part of the plant based on output information of various sensors such as a temperature sensor and a pressure sensor provided in each part of the plant.
  • the plant server 12 is a storage device such as a processing unit 20 (computer) such as a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), a hard disk (HDD), or the like. 21, a communication device 22 that performs data communication with the plant computer 11 and the maintenance system 50 (maintenance server 51), an image display device 23 that displays an image, an input device 24 that receives input from a plant-side user, and the like. .
  • Data communication between the plant server 12 and the maintenance system 50 (maintenance server 51) is performed using an encrypted dedicated line with limited access rights.
  • the dedicated line may be provided using the Internet or may be provided using a telephone line.
  • Data communication between the plant server 12 and the plant computer 11 is performed using an intranet such as an industrial network.
  • the image display device 23 and the input device 24 are provided in the server terminal device 25.
  • the storage device 21 such as a hard disk of the plant server 12 stores a program 16 for each function, and first, second, and third level plant databases 13, 14, 15 and the like.
  • the arithmetic processing device 20 executes a program (software) stored in the storage device 21, and other processing such as the storage device 21, the communication device 22, the image display device 23, and the input device 24 is performed. Realized by cooperating with hardware.
  • the plant server 12 has a plant database that is divided into three levels: a first level plant database 13, a second level plant database 14, and a third level plant database 15. ing.
  • the confidentiality increases.
  • the first-level, second-level, and third-level plant databases 13, 14, and 15 are stored in the storage device 21.
  • the plant server 12 executes a monitoring control information storage process for storing the monitoring control information of the plant in the first level plant database 13. Specifically, the plant server 12 collects actuator drive information received from the plant computer 11, sensor output information, plant operation status, alarm information for notifying abnormality of each part of the plant, and the like online. The level is stored in the plant database 13. The plant server 12 stores the monitoring control information of the plant in a recording period relatively shorter than the recording period of the third-level plant database 15 (for example, a period from the present to one month before).
  • the plant server 12 executes setting value storage processing for storing setting values used in plant monitoring control in the second-level plant database 14. Specifically, the plant server 12 sets set values such as a control gain, a coefficient, a determination value, and an alarm generation determination threshold value used in the monitoring control process executed by the plant computer 11 and the plant server 12 and the like to the plant computer 11. And collected from the plant server 12 and the like and stored in the second-level plant database 14.
  • the alarm generation determination threshold is a determination threshold used for determining whether or not to generate an alarm notifying the abnormality of each part of the plant.
  • the plant server 12 executes an operation record storage process for storing operation records of past plants in the third-level plant database 15. Specifically, the plant server 12 sets the monitoring control information of various plants as described above and various monitoring control setting values over a long period of time (for example, a period from the start of plant operation to the present).
  • the data is stored in the plant database 15 at the third level.
  • the third-level plant database 15 stores plant operation data such as worker work records such as inspection records of each part of the plant and process management records.
  • a recording medium such as an optical disk may be used for the storage device 21 in which the third level plant database 15 is stored.
  • the plant server 12 transmits, in real time, the monitoring control information permitted to be transmitted in advance to the maintenance system 50 (maintenance server 51) among the monitoring control information stored in the first level plant database 13. Execute information transmission processing.
  • the monitoring control information transmission process is performed by a constant transmission process that always transmits data. Although transmission of all monitoring control information may be permitted, for example, transmission of monitoring control information that is important for maintenance (for example, alarm information, information on actuators and sensors with a high frequency of failure) is permitted. Good.
  • the plant server 12 determines whether to permit transmission of setting value information requested from the maintenance system 50 among the setting values for plant monitoring control stored in the plant database 14 at the second level. In response to this, a set value transmission process to be transmitted to the maintenance system 50 is executed.
  • the plant server 12 receives a transmission request for a set value from the maintenance server 51 through conversational sharing processing for sharing data by bidirectional communication.
  • a specific set value is requested to be transmitted among a plurality of set values for monitoring control such as various control gains, coefficients, determination values, and alarm generation determination threshold values. All set values may be requested for transmission.
  • the plant server 12 performs the level 2 screen display process which reads the information of the setting value with the transmission request
  • the plant server 12 performs the user input process which receives the selection result of the plant side user whether transmission is permitted or not via the input device 24 of the server terminal device 25. And when the selection result which permits transmission is inputted, the plant server 12 reads the information of the set value requested for transmission from the second-level plant database 14, and sends it to the maintenance server 51 by the constant transmission process. Execute the conversational transmission process to be transmitted. On the other hand, when a selection result indicating that transmission is not permitted is input, the plant server 12 does not transmit the setting value information requested for transmission to the maintenance server 51.
  • the plant server 12 refers to a data table in which the relationship between each set value and whether or not each set value can be transmitted in advance, reads out whether or not transmission is possible corresponding to the set value for which a transmission request has been made, and performs transmission. It may be configured to determine whether to permit or not.
  • the data table is preset by the plant user and stored in the storage device 21.
  • the plant server 12 determines whether or not to permit transmission of the plant operation record for the contents and period requested from the maintenance system 50 among the past plant operation records stored in the third-level plant database 15. Depending on the determination result, an operation record transmission process to be transmitted to the maintenance system 50 is executed.
  • the plant server 12 receives a request for transmission of the contents and period of the plant operation record from the maintenance server 51 by interactive sharing processing. Then, the plant server 12 reads out the contents of the operation record and the period information of the plant requested to be transmitted from the third level plant database 15 and displays them on the image display device 23 of the server terminal device 25. A confirmation image is displayed on the image display device 23 of the server terminal device 25 to execute the process and to allow the plant-side user to select whether or not to permit transmission of the contents of the operation record and the period information of the plant that has requested transmission. Execute user output processing. And the plant server 12 performs the user input process which receives the selection result of the plant side user whether transmission is permitted or not via the input device 24 of the server terminal device 25.
  • the plant server 12 performs the period designation
  • a selection result for permitting transmission is input, a conversational transmission process is performed in which information read out by the period designation process is transmitted to the maintenance server 51 by a constant transmission process.
  • the plant server 12 does not transmit the contents of the requested operation record and information on the period to the maintenance server 51.
  • the plant operation record is transmitted from the plant server 12 to the maintenance system 50 by encrypting the information read out by the period specifying process and storing it in a recording medium such as an optical disk. It may be done by mailing to the side.
  • the plant server 12 transmits the contents of the operation record of the plant and the information on the period and the descrambling password transmitted by the recording medium to the maintenance system 50 through the conversational transmission process and the constant transmission process. .
  • the maintenance system 50 includes a computer for performing plant maintenance.
  • the maintenance system 50 includes a maintenance server 51.
  • the maintenance server 51 creates a plant maintenance plan based on the data transmitted from the plant server 12.
  • Each function of the maintenance server 51 is realized by a processing circuit and a storage device provided in the maintenance server 51.
  • the maintenance server 51 stores an arithmetic processing device 60 (computer) such as a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), a hard disk (HDD), or the like.
  • the communication apparatus 62 which performs data communication with the apparatus 61, the monitoring control system 10 (plant server 12), etc., the image display apparatus 63 which represents an image, the input apparatus 64 which receives the input of a plant side user, etc. are provided.
  • data communication between the plant server 12 and the maintenance server 51 is performed using an encrypted dedicated line with a limited access right.
  • the image display device 63 and the input device 64 are provided in the server terminal device 65.
  • the storage device 61 such as a hard disk of the maintenance server 51 includes a program 57 for each function, first level, second level, and third level collection databases 52, 53, 54, and second level and third level. Level maintenance databases 55, 56, etc. are stored.
  • the arithmetic processing device 60 executes a program (software) stored in the storage device 61, and in addition to the storage device 61, the communication device 62, the image display device 63, the input device 64, and the like. It is realized by cooperating with the hardware.
  • the maintenance server 51 includes a first level collection database 52 that stores information of the first level plant database 13 transmitted from the plant server 12, and a second level transmitted from the plant server 12.
  • the maintenance server 51 executes monitoring control information collection processing for storing the monitoring control information transmitted from the plant server 12 in real time in the first level collection database 52.
  • the monitoring control information collection process is always performed by a transmission process.
  • the monitoring control information includes actuator driving information that is permitted to be transmitted in advance, sensor output information, plant operating status, and alarm information that notifies abnormality of each part of the plant.
  • the maintenance server 51 receives the specified setting when a setting value for monitoring control requesting transmission is specified from the maintenance side user via the input device 64 and the image display device 63 of the server terminal device 65.
  • a set value transmission request process for transmitting a value transmission request to the plant server 12 is executed.
  • the set value transmission request processing is executed by conversational sharing processing.
  • the maintenance user designates a specific set value for requesting transmission among a plurality of set values such as various control gains, coefficients, determination values, alarm generation determination threshold values, and the like. All set values may be specified.
  • the maintenance server 51 executes setting value collection processing for storing the monitoring control setting value information transmitted from the plant server 12 in the second level collection database 53.
  • the set value collection process is executed by a constant transmission process.
  • the operation record transmission request process for transmitting the contents of the operation record and the transmission request for the period to the plant server 12 side is executed.
  • the operation record transmission request process is executed by an interactive sharing process.
  • the maintenance-side user designates a specific operation record that requires transmission out of a plurality of operation records such as past monitoring control information, setting values for past monitoring control, past plant operation data, etc. specify.
  • the maintenance server 51 executes an operation record collection process for storing the contents and period information of the operation record transmitted from the plant server 12 in the third level collection database 54.
  • the operation record collection process is always performed by a transmission process.
  • the maintenance server 51 includes a second level maintenance database 55 and a third level maintenance database 56. As the level increases from the second level to the third level, confidentiality increases. Here, the reason why the first level maintenance database is not provided is that there is no low confidential database that can be freely transmitted to the outside.
  • the second-level and third-level maintenance databases 55 and 56 are maintained by the maintenance-side user and stored in the storage device 61.
  • the second level maintenance database 55 stores information on design values of setting values for monitoring control.
  • the set values for monitoring control are control gains, coefficients, determination values, alarm generation determination threshold values, etc. used in the monitoring control processing executed by the plant computer 11 and the plant server 12 and the like.
  • the variable value is adjusted by actually operating the plant.
  • the design value information includes the allowable setting range of the set value, the set value when the plant parts such as sensors, actuators, and machine parts are normal or deteriorated, and the replacement time of the plant parts such as sensors, actuators, and machine parts.
  • the setting value to be represented, the setting value representing that there is an abnormality in the plant, the importance of the setting value, information on the basis for setting the setting value, and the like are included.
  • the third level maintenance database 56 stores information on the supply time of spare parts for plant parts.
  • the information on the supply available time includes information on the inventory status of spare parts.
  • the supply available time is set to the shortest time.
  • the supply available time is set to the normal lead time of each plant part from ordering to manufacturing completion.
  • the maintenance server 51 includes the monitoring control information transmitted from the plant server 12, the comparison result between the set value transmitted from the plant server 12 and the design value of the set value stored in the second level maintenance database 55, and the plant Based on at least one or more of the plant operation records transmitted from the server 12, a replacement time prediction process for predicting the replacement required time of plant parts is executed.
  • the maintenance server 51 performs short-term statistical processing on actuator drive information, sensor output information, and monitoring control information such as the plant operating state, and thereby provides plant parts such as sensors, actuators, and machine parts.
  • the normality, abnormality degree, deterioration degree, etc. of the plant are judged and the time when the plant parts need to be replaced is predicted.
  • the maintenance server 51 determines that the higher the standard deviation calculated for statistical processing or the deviation degree from the ideal value, the higher the degree of abnormality or deterioration of the corresponding plant part, and the time when inspection or replacement of the plant part is necessary Judge that the time is near.
  • the maintenance server 51 compares the monitoring control information predicted using a physical model, a statistical model, or the like of the plant with the actual monitoring control information, and the larger the deviation between the predicted value and the actual value, the corresponding plant Judge that it is almost time to inspect or replace parts. In addition, when the maintenance server 51 receives the alarm information, the maintenance server 51 determines that the inspection necessary time or the replacement necessary time of the corresponding plant part is closer as the occurrence frequency of the alarm information or the importance of the alarm information is higher.
  • the maintenance server 51 compares the actual set value stored in the second level collection database 53 with the design value of the set value stored in the second level maintenance database 55 to obtain a sensor.
  • the normality, abnormality degree, deterioration degree, etc. of plant parts such as actuators and machine parts are determined, and the time when inspection or replacement of the plant parts is necessary is predicted.
  • the set value is a control gain, a coefficient, a determination value, an alarm generation determination threshold value, or the like used in the monitoring control process, and is a variable value that is adjusted during plant operation.
  • the design value of the set value is the allowable set range of the set value, the set value when the plant part is normal or deteriorated, the set value indicating the replacement time of the plant part, the set value indicating the plant abnormality, etc. Is done.
  • the maintenance server 51 when the actual setting value exceeds the allowable setting range of the setting value, the maintenance server 51 has a higher degree of abnormality or deterioration of the corresponding plant part as the degree of excess of the allowable setting range is larger. Judgment is made and it is determined that the time for inspection or replacement of plant parts is near. In the maintenance server 51, the closer the actual set value is to the set value at the time of deterioration, the set value representing the replacement time, or the set value representing the abnormality, the closer the inspection required time or the replacement required time of the corresponding plant part is. Is determined.
  • the maintenance server 51 calculates long-term changes such as monitoring control information and set values included in the operation record of the plant stored in the third level collection database 54, and includes sensors, actuators, machine parts, and the like. The normality, abnormality degree, deterioration degree, etc. of the plant parts are determined, and the time when inspection or replacement of the plant parts is necessary is predicted. Further, the maintenance server 51 determines that the inspection necessary time or the replacement necessary time of the corresponding plant part is closer as the recent changes in the monitoring control information and the set value are larger. The maintenance server 51 determines that the inspection necessary time or replacement time of the corresponding plant part is closer as the inspection frequency of the inspection record included in the operation record of the plant stored in the third level collection database 54 is higher. To do.
  • the maintenance server 51 creates a maintenance plan for creating a plant maintenance plan based on the predicted replacement time of the plant parts and information on the supply time of spare parts stored in the second level maintenance database 55. Execute the process.
  • the maintenance server 51 is within the range of the replacement required time when the replacement required time of the plant part determined to be required is within the range of the supplyable time of the spare part of the corresponding plant part.
  • a maintenance plan is created to replace plant parts at the scheduled maintenance time.
  • the maintenance server 51 performs a process of notifying the maintenance side user that it is not within the range when the replacement time of the plant part is not within the range of the supply time of the spare part of the corresponding plant part, The maintenance-side user can arrange for substitutes and take measures such as reflecting them in the maintenance plan.
  • the plant part is immediately Create a maintenance plan to replace
  • the maintenance server 51 creates a maintenance plan for inspecting the plant parts at the scheduled maintenance time scheduled within the range of the inspection required time of the plant parts determined to be inspected.
  • the maintenance server 51 creates a maintenance plan for inspecting the plant parts immediately when the plant parts need to be replaced at the present time and the importance of the plant parts is high.
  • the supply time of the spare parts for the plant parts that are expected to be replaced by the inspection may be taken into consideration as in the case of the above replacement.
  • the maintenance server 51 may include information on an inspection method in an inspection maintenance plan as necessary.
  • the created maintenance plan is stored in the storage device 61 of the maintenance server 51.
  • the maintenance server 51 performs a user output process for notifying the created maintenance plan to the maintenance side user via the image display device 63 of the server terminal device 65 so that the maintenance side user can check the maintenance plan. If it is necessary to change the maintenance plan as a result of confirmation, the maintenance-side user changes the maintenance plan via the input device 64 of the server terminal device 65.
  • the maintenance server 51 executes a user input process for receiving a selection result of the plant-side user as to whether or not the created maintenance plan may be transmitted to the monitoring control system 10 via the input device 64 of the server terminal device 65. .
  • the maintenance server 51 performs the maintenance plan transmission process which transmits a maintenance plan to the plant server 12, when the selection result which permits transmission is input.
  • the maintenance plan transmission process is executed by an interactive sharing process.
  • the maintenance server 51 when there is no inventory of plant parts to be replaced, the maintenance server 51 performs plant part ordering processing in accordance with the maintenance plan. For example, a plant part ordering command is transmitted to the manufacturing department.
  • the maintenance server 51 performs supply processing for supplying plant parts to the plant in accordance with the maintenance plan. For example, a supply instruction for plant parts is transmitted to the logistics department.
  • the plant server 12 executes a user output process for informing the plant-side user of the transmitted maintenance plan via the image display device 23 of the server terminal device 25, and the maintenance plan in the monitoring control system 10. It is transmitted to the system 26 and reflected in the maintenance plan (process, work procedure, etc.) of the plant.
  • step S01 the plant server 12 executes the monitoring control information storage process (monitoring control information storage step) for storing the plant monitoring control information in the first level plant database 13 as described above.
  • step S02 the plant server 12 transmits to the maintenance system 50 in real time the monitoring control information previously permitted to be transmitted among the monitoring control information stored in the first level plant database 13 as described above.
  • Monitoring control information transmission processing monitoring control information transmission step to be executed.
  • step S03 the plant server 12 executes the set value storage process (set value storage step) for storing the set values used in the plant monitoring control in the second level plant database 14 as described above.
  • step S04 the plant server 12 transmits, as described above, information on the setting value requested from the maintenance system 50 among the setting values for plant monitoring control stored in the plant database 14 at the second level.
  • the set value transmission process (set value transmission step) to be transmitted to the maintenance system 50 is executed in accordance with the determination result of whether or not to permit.
  • step S05 the plant server 12 executes the operation record storage process (operation record storage step) in which the operation record of the past plant is stored in the third-level plant database 15 as described above.
  • step S06 the plant server 12 records the operation record of the plant for the contents and period requested from the maintenance system 50 among the operation records of the past plant stored in the plant database 15 of the third level as described above. Then, an operation record transmission process (operation record transmission step) to be transmitted to the maintenance system 50 according to the determination result of whether or not to permit the transmission is executed.
  • the processing in the flowchart of FIG. 7 is executed when the arithmetic processing device 60 (computer) of the maintenance server 51 executes the program 57 (software) stored in the storage device 61.
  • step S11 the maintenance server 51 stores the monitoring control information transmitted from the monitoring control system 10 in real time in the first level collection database 52 as described above (monitoring control information). Collect step).
  • step S12 the maintenance server 51 executes the setting value transmission request process (setting value transmission request step) for requesting the monitoring control system 10 to transmit the monitoring control setting value as described above.
  • step S13 the maintenance server 51 stores the setting value collection processing (setting value) for storing the monitoring control setting value information transmitted from the monitoring control system 10 in the second level collection database 53 as described above. Collect step).
  • step S14 the maintenance server 51 performs operation record transmission request processing (operation record transmission request step) for requesting transmission to the monitoring control system 10 by specifying the contents and period of the plant operation record as described above. Execute.
  • step S15 the maintenance server 51, as described above, stores the operation record content and period information transmitted from the monitoring control system 10 in the third-level collection database 54 (operation record). Collect step).
  • step S16 the maintenance server 51, as described above, the monitoring control information transmitted from the monitoring control system 10, the setting value transmitted from the monitoring control system 10, and the setting stored in the second level maintenance database 55.
  • Replacement time prediction process for predicting the replacement time of plant parts based on at least one of the comparison result of the value with the design value and the operation record of the plant transmitted from the monitoring control system 10 (replacement time prediction step) Execute.
  • step S17 the maintenance server 51 determines the plant part replacement time based on the predicted replacement time of the plant parts and the information on the supply time of the spare parts stored in the second level maintenance database 55 as described above.
  • a maintenance plan creation process (maintenance plan creation step) for creating a maintenance plan is executed.
  • step S18 the maintenance server 51 executes a maintenance plan transmission process (a maintenance plan transmission step) for transmitting the created maintenance plan to the monitoring control system 10 as described above.
  • the supervisory control system 10 divides the plant database divided into three levels of the first level, the second level, and the third level plant databases 13, 14, and 15.
  • the embodiment of the present invention is not limited to this. That is, the supervisory control system 10 may have a plant database divided into at least three levels and may have a plant database divided into four or more levels. For example, it may have a fourth level plant database that is more confidential than the third level and is prohibited from transmitting information to the outside, and the third level plant database 15 is internally layered into a plurality of layers. Also good.
  • a collection database of a level corresponding to the level of the plant database of the monitoring control system 10 is provided in the maintenance system 50.
  • the maintenance system 50 has an example in which the maintenance database 50 has the maintenance database divided into two levels of the maintenance databases 55 and 56 of the second level and the third level.
  • the embodiment of the present invention is not limited to this.
  • the maintenance system 50 only needs to have a maintenance database that is divided into at least two levels of the second level and the third level, and has a maintenance database that is divided into three or more levels. It may be.
  • a fourth level maintenance database having a higher secrecy than the third level or a first level maintenance database having a lower secrecy than the second level may be included. May be hierarchized into a plurality of layers.

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Abstract

The purpose of the present invention is to provide a plant information sharing system capable of hierarchizing information retained by a plant monitoring-control system into a plurality of levels according to content and carrying out information management and data transmission management. Provided is a plant information sharing system (1), wherein a monitoring-control system (10): transmits in real-time to a maintenance system (50) the monitoring-control information wherefor transmission is pre-approved, from among monitoring-control information stored in a first-level plant database (13); transmits, according to the outcome of an assessment on whether to approve the transmission, a requested setting value information from among monitoring-control setting values stored in a second-level plant database (14); and transmits, according to the outcome of the assessment on whether to approve the transmission, the plant operation records matching the requested content and interval, from among past plant operation records stored in a third-level plant database (15).

Description

プラント情報共有システムPlant information sharing system
　本発明は、プラントの監視制御システムが保有する情報をプラントの保守用システムへ伝送し、情報共有を行うプラント情報共有システムに関するものである。 The present invention relates to a plant information sharing system for transmitting information held by a plant monitoring control system to a plant maintenance system and sharing information.
　下記の特許文献１の技術では、発電プラントからプラントの運転、保守フィールドデータを、ネットワーク介して保全サービス拠点に収集し、発電プラントの監視、診断、検査等を行うように構成されている。 The technology disclosed in Patent Document 1 below is configured to collect plant operation and maintenance field data from a power plant at a maintenance service base via a network, and perform monitoring, diagnosis, inspection, and the like of the power plant.
特開２００３－１１４２９４号公報JP 2003-114294 A
　ところで、プラントの監視制御システムが保有する情報には、秘匿性のレベルが異なる情報があり、秘匿性のレベルに応じた情報管理と、保守用システム側への情報伝送の管理を行う必要がある。しかしながら、特許文献１の技術では、インターネットを介して、プラントの運転、保守フィールドデータが伝送されるだけであって、情報の秘匿性に応じた情報管理、伝送管理が行われていない。 By the way, the information held by the plant supervisory control system includes information with different levels of confidentiality, and it is necessary to manage information according to the level of confidentiality and management of information transmission to the maintenance system side. . However, in the technique of Patent Document 1, only plant operation and maintenance field data are transmitted via the Internet, and information management and transmission management according to information confidentiality are not performed.
　そこで、プラントの監視制御システムが保有する情報を、内容に応じて複数のレベルに階層分けして、情報管理、伝送管理が行えるプラント情報共有システムが望まれる。 Therefore, a plant information sharing system that can perform information management and transmission management by dividing information held by a plant monitoring control system into a plurality of levels according to the contents is desired.
　本発明に係るプラント情報共有システムは、プラントの監視制御システムが保有する情報をプラントの保守用システムへ伝送し、情報共有を行うプラント情報共有システムであって、
　前記監視制御システムは、少なくとも第１レベルのプラントデータベース、第２レベルのプラントデータベース、及び第３レベルのプラントデータベースの３つのレベルに階層分けされたプラントデータベースを有し、
　前記第１レベルのプラントデータベースには、プラントの監視制御情報が記憶され、前記監視制御システムは、予め伝送を許可された前記監視制御情報を、リアルタイムで、前記保守用システムに伝送し、
　前記第２レベルのプラントデータベースには、プラントの監視制御で用いられる設定値が記憶され、前記監視制御システムは、前記保守用システムから要求された前記設定値の情報を、伝送を許可するか否かの判定結果に応じて前記保守用システムに伝送し、
　前記第３レベルのプラントデータベースには、過去のプラントの運転記録が記憶され、前記保守用システムから要求された内容及び期間の前記プラントの運転記録を、伝送を許可するか否かの判定結果に応じて前記保守用システムに伝送するものである。 A plant information sharing system according to the present invention is a plant information sharing system that transmits information held by a plant monitoring and control system to a plant maintenance system, and performs information sharing.
The supervisory control system has a plant database hierarchically divided into three levels of at least a first level plant database, a second level plant database, and a third level plant database,
The first level plant database stores plant monitoring control information, and the monitoring control system transmits the monitoring control information permitted to be transmitted in advance to the maintenance system in real time,
The second level plant database stores setting values used in plant monitoring control, and the monitoring control system permits transmission of the setting value information requested from the maintenance system. According to the result of the determination is transmitted to the maintenance system,
In the third-level plant database, past plant operation records are stored, and the plant operation records for the contents and period requested from the maintenance system are used as a result of determination as to whether or not transmission is permitted. Accordingly, it is transmitted to the maintenance system.
　本発明に係るプラント情報共有システムによれば、プラントの監視制御システムが保有する情報を少なくとも３つのレベルに階層分けして管理することができる。第１レベルのプラントデータベースに記憶されたプラントの監視制御情報の内、予め伝送を許可された監視制御情報が、リアルタイムで保守用システムに伝送されるので、保守用システムで、リアルタイムにプラントの各部の状態を監視することができる。この際、予め伝送を許可された監視制御情報が伝送されるので、保守に必要な情報、秘匿性から伝送許可できる情報に限って伝送することできる。第２レベルのプラントデータベースに記憶された監視制御用の設定値の内、保守用システムから要求され、監視制御システム側で伝送を許可できると判定された設定値が、保守用システムに伝送されるので、保守に必要な情報及び秘匿性から伝送許可できる設定値に限って伝送することができる。そして、保守用システムで、伝送された設定値に基づいて、監視制御の状態を確認し、保守に利用することができる。第３レベルのプラントデータベースに記憶された過去のプラントの運転記録の内、保守用システムから要求された内容及び期間のプラントの運転記録であって、監視制御システム側で伝送を許可できると判定されたものが、保守用システムに伝送されるので、保守に必要な情報及び秘匿性から伝送許可できる内容及び期間のプラントの運転記録に限って伝送することができる。そして、保守用システムで、伝送された内容及び期間のプラントの運転記録に基づいて、プラントの運転状態を確認し、保守に利用することができる。従って、プラントの監視制御システムが保有する情報を、内容に応じて複数のレベルに階層分けして、情報管理、伝送管理を行うことができる。 According to the plant information sharing system according to the present invention, the information held by the plant monitoring and control system can be managed in a hierarchy divided into at least three levels. Of the monitoring control information of the plant stored in the first level plant database, the monitoring control information permitted to be transmitted in advance is transmitted to the maintenance system in real time. Can be monitored. At this time, since the monitoring control information permitted to be transmitted in advance is transmitted, it is possible to transmit only information necessary for maintenance and information that can be permitted for transmission due to confidentiality. Of the setting values for monitoring control stored in the second level plant database, the setting values requested from the maintenance system and determined to be permitted to be transmitted on the monitoring control system side are transmitted to the maintenance system. Therefore, it is possible to transmit only the setting values that allow transmission from the information necessary for maintenance and confidentiality. Then, the maintenance system can check the status of the monitoring control based on the transmitted set value and use it for maintenance. Among the operation records of the past plant stored in the third level plant database, it is the operation record of the plant for the contents and the period requested from the maintenance system, and it is determined that the transmission can be permitted on the supervisory control system side. Since the information is transmitted to the maintenance system, it can be transmitted only to the operation record of the plant during the period and the content that can be permitted to be transmitted due to the information necessary for maintenance and confidentiality. The maintenance system can confirm the operation state of the plant based on the transmitted contents and the operation record of the plant during the period, and can use it for maintenance. Accordingly, information held in the plant monitoring control system can be divided into a plurality of levels according to the contents, and information management and transmission management can be performed.
本発明の実施の形態１に係るプラント情報共有システムの概略全体構成を示す図である。It is a figure which shows the schematic whole structure of the plant information sharing system which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る監視制御システムから保守用システムへ情報を伝送する場合の構成及び処理を説明するブロック図である。It is a block diagram explaining the structure and process in the case of transmitting information from the monitoring control system which concerns on Embodiment 1 of this invention to the system for maintenance. 本発明の実施の形態１に係る保守用システムが保守計画を作成する場合の構成及び処理を説明するブロック図である。It is a block diagram explaining a structure and a process in case the maintenance system which concerns on Embodiment 1 of this invention produces a maintenance plan. 本発明の実施の形態１に係る監視制御システム（プラントサーバ）のハードウェア構成図である。It is a hardware block diagram of the monitoring control system (plant server) which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る保守用システム（保守用サーバ）のハードウェア構成図である。It is a hardware block diagram of the system for maintenance (maintenance server) concerning Embodiment 1 of the present invention. 本発明の実施の形態１に係る監視制御システム（プラントサーバ）の処理を説明するためのフローチャートである。It is a flowchart for demonstrating the process of the monitoring control system (plant server) which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る保守用システム（保守用サーバ）の処理を説明するためのフローチャートである。It is a flowchart for demonstrating the process of the system for maintenance (maintenance server) which concerns on Embodiment 1 of this invention.
実施の形態１．
　実施の形態１に係るプラント情報共有システム１について図面を参照して説明する。図１は、プラント情報共有システム１の概略全体構成を示す図である。 Embodiment 1 FIG.
A plant information sharing system 1 according to Embodiment 1 will be described with reference to the drawings. FIG. 1 is a diagram showing a schematic overall configuration of a plant information sharing system 1.
　プラント情報共有システム１は、プラントの監視制御システム１０が保有する情報を、プラントの保守用システム５０へ伝送し、情報共有を行う情報共有システムである。保守用システム５０は、プラントの製造メーカ、プラントの保守サービスを行う保守サービス会社等に設けられている。保守用システム５０は、複数のプラントを保守することが可能とされている。以下では、１つのプラントの監視制御システム１０について、代表して説明する。 The plant information sharing system 1 is an information sharing system that transmits information held by the plant monitoring control system 10 to the plant maintenance system 50 to share information. The maintenance system 50 is provided in a plant manufacturer, a maintenance service company that performs maintenance service of the plant, or the like. The maintenance system 50 can maintain a plurality of plants. Below, the monitoring control system 10 of one plant is demonstrated as a representative.
　プラントには、発電所、工場等の生産設備や、上下水道、電力、鉄道、道路、河川、ダム、ビル等の社会インフラ設備等の各種のプラントが含まれる。本実施の形態では、プラントが発電所とされている場合について説明する。 Plants include various facilities such as production facilities such as power plants and factories, and social infrastructure facilities such as water and sewage systems, electric power, railways, roads, rivers, dams and buildings. In the present embodiment, a case where the plant is a power plant will be described.
１．監視制御システム１０
　監視制御システム１０は、プラントの監視及び制御を行う計算機から構成されている。本実施の形態では、監視制御システム１０は、図２に示すように、プラントの各部の監視及び制御を行うプラント計算機１１と、プラントの各種データを一括して保存しているプラントサーバ１２と、を備えている。プラント計算機１１は、プラントの各部に設けられた温度センサ、圧力センサ等の各種センサの出力情報等に基づいて、プラントの各部に設けられた弁、ポンプ等の各種アクチュエータを駆動制御する。 1. Supervisory control system 10
The monitoring control system 10 is composed of a computer that monitors and controls a plant. In the present embodiment, as shown in FIG. 2, the monitoring control system 10 includes a plant computer 11 that monitors and controls each part of the plant, a plant server 12 that collectively stores various plant data, It has. The plant computer 11 drives and controls various actuators such as valves and pumps provided in each part of the plant based on output information of various sensors such as a temperature sensor and a pressure sensor provided in each part of the plant.
　プラントサーバ１２の各機能は、プラントサーバ１２が備えた処理回路及び記憶装置により実現される。プラントサーバ１２は、図４に示すように、ＣＰＵ（Central Processing Unit）等の演算処理装置２０（コンピュータ）、ＲＡＭ（Random Access Memory）、ＲＯＭ（Read Only Memory）、ハードディスク（ＨＤＤ）等の記憶装置２１、プラント計算機１１及び保守用システム５０（保守用サーバ５１）等とデータ通信を行う通信装置２２、画像を表する画像表示装置２３、プラント側ユーザの入力を受け付ける入力装置２４等を備えている。プラントサーバ１２と保守用システム５０（保守用サーバ５１）との間のデータ通信は、アクセス権が制限され、暗号化された専用回線を用いて行われる。専用回線は、インターネットを用いて設けられてもよく、電話回線を用いて設けられてよい。プラントサーバ１２とプラント計算機１１との間のデータ通信は、産業用ネットワーク等のイントラネットを用いて行われる。本実施の形態では、画像表示装置２３及び入力装置２４は、サーバ端末装置２５に備えられている。 Each function of the plant server 12 is realized by a processing circuit and a storage device provided in the plant server 12. As shown in FIG. 4, the plant server 12 is a storage device such as a processing unit 20 (computer) such as a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), a hard disk (HDD), or the like. 21, a communication device 22 that performs data communication with the plant computer 11 and the maintenance system 50 (maintenance server 51), an image display device 23 that displays an image, an input device 24 that receives input from a plant-side user, and the like. . Data communication between the plant server 12 and the maintenance system 50 (maintenance server 51) is performed using an encrypted dedicated line with limited access rights. The dedicated line may be provided using the Internet or may be provided using a telephone line. Data communication between the plant server 12 and the plant computer 11 is performed using an intranet such as an industrial network. In the present embodiment, the image display device 23 and the input device 24 are provided in the server terminal device 25.
　プラントサーバ１２のハードディスク等の記憶装置２１には、各機能のためのプログラム１６、及び第１レベル、第２レベル、及び第３レベルのプラントデータベース１３、１４、１５等が記憶されている。プラントサーバ１２の各処理は、演算処理装置２０が、記憶装置２１に記憶されたプログラム（ソフトウェア）を実行し、記憶装置２１、通信装置２２、画像表示装置２３、及び入力装置２４等の他のハードウェアと協働することにより実現される。 The storage device 21 such as a hard disk of the plant server 12 stores a program 16 for each function, and first, second, and third level plant databases 13, 14, 15 and the like. In each process of the plant server 12, the arithmetic processing device 20 executes a program (software) stored in the storage device 21, and other processing such as the storage device 21, the communication device 22, the image display device 23, and the input device 24 is performed. Realized by cooperating with hardware.
＜プラントデータベース＞
　図２に示すように、プラントサーバ１２は、第１レベルのプラントデータベース１３、第２レベルのプラントデータベース１４、及び第３レベルのプラントデータベース１５の３つのレベルに階層分けされたプラントデータベースを有している。なお、第１レベルから、第２レベル、第３レベルにレベルが上がるに従って、秘匿性が高くなる。上記のように、第１レベル、第２レベル、及び第３レベルのプラントデータベース１３、１４、１５は、記憶装置２１に記憶されている。 <Plant database>
As shown in FIG. 2, the plant server 12 has a plant database that is divided into three levels: a first level plant database 13, a second level plant database 14, and a third level plant database 15. ing. In addition, as the level increases from the first level to the second level and the third level, the confidentiality increases. As described above, the first-level, second-level, and third- level plant databases 13, 14, and 15 are stored in the storage device 21.
　プラントサーバ１２は、第１レベルのプラントデータベース１３に、プラントの監視制御情報を記憶する監視制御情報記憶処理を実行する。具体的には、プラントサーバ１２は、プラント計算機１１から受け取ったアクチュエータの駆動情報、センサの出力情報、プラントの運転状態、及びプラントの各部の異常を知らせる警報情報等をオンラインで収集し、第１レベルのプラントデータベース１３に記憶する。プラントサーバ１２は、第３レベルのプラントデータベース１５の記録期間よりも比較的短い記録期間（例えば、現在から１か月前までの期間）のプラントの監視制御情報を記憶する。 The plant server 12 executes a monitoring control information storage process for storing the monitoring control information of the plant in the first level plant database 13. Specifically, the plant server 12 collects actuator drive information received from the plant computer 11, sensor output information, plant operation status, alarm information for notifying abnormality of each part of the plant, and the like online. The level is stored in the plant database 13. The plant server 12 stores the monitoring control information of the plant in a recording period relatively shorter than the recording period of the third-level plant database 15 (for example, a period from the present to one month before).
　プラントサーバ１２は、第２レベルのプラントデータベース１４に、プラントの監視制御で用いられる設定値を記憶する設定値記憶処理を実行する。具体的には、プラントサーバ１２は、プラント計算機１１及びプラントサーバ１２等で実行される監視制御の処理で用いられる制御ゲイン、係数、判定値、警報発生判定閾値等の設定値を、プラント計算機１１及びプラントサーバ１２等から収集し、第２レベルのプラントデータベース１４に記憶する。警報発生判定閾値は、プラントの各部の異常を知らせる警報を発生するか否かを判定するために用いられる判定閾値である。これらの各種の監視制御用の設定値は、実際にプラントを運転させて調整される可変値とされている。 The plant server 12 executes setting value storage processing for storing setting values used in plant monitoring control in the second-level plant database 14. Specifically, the plant server 12 sets set values such as a control gain, a coefficient, a determination value, and an alarm generation determination threshold value used in the monitoring control process executed by the plant computer 11 and the plant server 12 and the like to the plant computer 11. And collected from the plant server 12 and the like and stored in the second-level plant database 14. The alarm generation determination threshold is a determination threshold used for determining whether or not to generate an alarm notifying the abnormality of each part of the plant. These various setting values for monitoring and control are variable values that are adjusted by actually operating the plant.
　プラントサーバ１２は、第３レベルのプラントデータベース１５に、過去のプラントの運転記録を記憶する運転記録記憶処理を実行する。具体的には、プラントサーバ１２は、上記のような各種のプラントの監視制御情報、及び各種の監視制御用の設定値を、長期間（例えば、プラントの運転開始時点から現在までの期間）に亘って、第３レベルのプラントデータベース１５に記憶する。また、第３レベルのプラントデータベース１５には、プラント各部の点検記録等の作業員の作業記録、行程管理記録等のプラントの運用データが記憶される。第３レベルのプラントデータベース１５が記憶される記憶装置２１には光ディスク等の記録メディアが用いられてもよい。 The plant server 12 executes an operation record storage process for storing operation records of past plants in the third-level plant database 15. Specifically, the plant server 12 sets the monitoring control information of various plants as described above and various monitoring control setting values over a long period of time (for example, a period from the start of plant operation to the present). The data is stored in the plant database 15 at the third level. The third-level plant database 15 stores plant operation data such as worker work records such as inspection records of each part of the plant and process management records. A recording medium such as an optical disk may be used for the storage device 21 in which the third level plant database 15 is stored.
＜プラントデータベースの情報の伝送＞
　プラントサーバ１２は、第１レベルのプラントデータベース１３に記憶した監視制御情報の内、予め伝送を許可された監視制御情報を、リアルタイムで、保守用システム５０（保守用サーバ５１）に伝送する監視制御情報伝送処理を実行する。監視制御情報伝送処理は、常時データの伝送を行う常時伝送処理により行われる。全ての監視制御情報の伝送が許可されてもよいが、例えば、保守を行う上で重要になる監視制御情報（例えば、警報情報、故障の頻度の高いアクチュエータ及びセンサの情報）の伝送が許可されるとよい。 <Transmission of plant database information>
The plant server 12 transmits, in real time, the monitoring control information permitted to be transmitted in advance to the maintenance system 50 (maintenance server 51) among the monitoring control information stored in the first level plant database 13. Execute information transmission processing. The monitoring control information transmission process is performed by a constant transmission process that always transmits data. Although transmission of all monitoring control information may be permitted, for example, transmission of monitoring control information that is important for maintenance (for example, alarm information, information on actuators and sensors with a high frequency of failure) is permitted. Good.
　プラントサーバ１２は、第２レベルのプラントデータベース１４に記憶したプラントの監視制御用の設定値の内、保守用システム５０から要求された設定値の情報を、伝送を許可するか否かの判定結果に応じて、保守用システム５０に伝送する設定値伝送処理を実行する。 The plant server 12 determines whether to permit transmission of setting value information requested from the maintenance system 50 among the setting values for plant monitoring control stored in the plant database 14 at the second level. In response to this, a set value transmission process to be transmitted to the maintenance system 50 is executed.
　本実施の形態では、プラントサーバ１２は、双方向通信によりデータを共有する会話型共有処理により、保守用サーバ５１から設定値の伝送要求を受け取る。各種の制御ゲイン、係数、判定値、警報発生判定閾値等の複数の監視制御用の設定値の内、特定の設定値が伝送要求される。なお、全部の設定値が伝送要求されてもよい。そして、プラントサーバ１２は、伝送要求があった設定値の情報を、第２レベルのプラントデータベース１４から読み出してサーバ端末装置２５の画像表示装置２３に表示するレベル２画面表示処理を実行すると共に、伝送要求があった設定値の情報の伝送を許可するか否かをプラント側ユーザに選択させる確認画像をサーバ端末装置２５の画像表示装置２３に表示するユーザ出力処理を実行する。 In the present embodiment, the plant server 12 receives a transmission request for a set value from the maintenance server 51 through conversational sharing processing for sharing data by bidirectional communication. A specific set value is requested to be transmitted among a plurality of set values for monitoring control such as various control gains, coefficients, determination values, and alarm generation determination threshold values. All set values may be requested for transmission. And the plant server 12 performs the level 2 screen display process which reads the information of the setting value with the transmission request | requirement from the 2nd level plant database 14, and displays it on the image display apparatus 23 of the server terminal device 25, A user output process for displaying on the image display device 23 of the server terminal device 25 a confirmation image for allowing the plant-side user to select whether or not to permit transmission of the set value information requested to be transmitted is executed.
　そして、プラントサーバ１２は、サーバ端末装置２５の入力装置２４を介して、伝送を許可するか否かのプラント側ユーザの選択結果を受け付けるユーザ入力処理を実行する。そして、プラントサーバ１２は、伝送を許可する選択結果が入力された場合は、第２レベルのプラントデータベース１４から伝送要求があった設定値の情報を読み出して、常時伝送処理により保守用サーバ５１に伝送する会話型伝送処理を実行する。一方、プラントサーバ１２は、伝送を許可しない選択結果が入力された場合は、伝送要求があった設定値の情報を保守用サーバ５１に伝送しない。なお、プラントサーバ１２は、各設定値と各設定値の伝送の可否との関係が予め設定されたデータテーブルを参照し、伝送要求があった設定値に対応する伝送の可否を読み出し、伝送を許可するか否かの判定を行うように構成されてもよい。データテーブルは、プラントユーザにより予め設定され、記憶装置２１に記憶される。 And the plant server 12 performs the user input process which receives the selection result of the plant side user whether transmission is permitted or not via the input device 24 of the server terminal device 25. And when the selection result which permits transmission is inputted, the plant server 12 reads the information of the set value requested for transmission from the second-level plant database 14, and sends it to the maintenance server 51 by the constant transmission process. Execute the conversational transmission process to be transmitted. On the other hand, when a selection result indicating that transmission is not permitted is input, the plant server 12 does not transmit the setting value information requested for transmission to the maintenance server 51. The plant server 12 refers to a data table in which the relationship between each set value and whether or not each set value can be transmitted in advance, reads out whether or not transmission is possible corresponding to the set value for which a transmission request has been made, and performs transmission. It may be configured to determine whether to permit or not. The data table is preset by the plant user and stored in the storage device 21.
　プラントサーバ１２は、第３レベルのプラントデータベース１５に記憶した過去のプラントの運転記録の内、保守用システム５０から要求された内容及び期間のプラントの運転記録を、伝送を許可するか否かの判定結果に応じて、保守用システム５０に伝送する運転記録伝送処理を実行する。 The plant server 12 determines whether or not to permit transmission of the plant operation record for the contents and period requested from the maintenance system 50 among the past plant operation records stored in the third-level plant database 15. Depending on the determination result, an operation record transmission process to be transmitted to the maintenance system 50 is executed.
　本実施の形態では、プラントサーバ１２は、会話型共有処理により、保守用サーバ５１からプラントの運転記録の内容及び期間の伝送要求を受け取る。そして、プラントサーバ１２は、伝送要求があったプラントの運転記録の内容及び期間の情報を、第３レベルのプラントデータベース１５から読み出してサーバ端末装置２５の画像表示装置２３に表示するレベル３画面表示処理を実行すると共に、伝送要求があったプラントの運転記録の内容及び期間の情報の伝送を許可するか否かをプラント側ユーザに選択させる確認画像をサーバ端末装置２５の画像表示装置２３に表示するユーザ出力処理を実行する。そして、プラントサーバ１２は、サーバ端末装置２５の入力装置２４を介して、伝送を許可するか否かのプラント側ユーザの選択結果を受け付けるユーザ入力処理を実行する。 In the present embodiment, the plant server 12 receives a request for transmission of the contents and period of the plant operation record from the maintenance server 51 by interactive sharing processing. Then, the plant server 12 reads out the contents of the operation record and the period information of the plant requested to be transmitted from the third level plant database 15 and displays them on the image display device 23 of the server terminal device 25. A confirmation image is displayed on the image display device 23 of the server terminal device 25 to execute the process and to allow the plant-side user to select whether or not to permit transmission of the contents of the operation record and the period information of the plant that has requested transmission. Execute user output processing. And the plant server 12 performs the user input process which receives the selection result of the plant side user whether transmission is permitted or not via the input device 24 of the server terminal device 25.
　そして、プラントサーバ１２は、伝送を許可する選択結果が入力された場合は、第３レベルのプラントデータベース１５から要求があったプラントの運転記録の内容及び期間の情報を読み出す期間指定処理を実行し、伝送を許可する選択結果が入力された場合は、期間指定処理により読み出した情報を、常時伝送処理により保守用サーバ５１に伝送する会話型伝送処理を実行する。一方、プラントサーバ１２は、伝送を許可しない選択結果が入力された場合は、要求があったプラントの運転記録の内容及び期間の情報を保守用サーバ５１に伝送しない。 And the plant server 12 performs the period designation | designated process which reads the content of the operation record of the plant requested | required from the 3rd level plant database 15, and the information of a period, when the selection result which permits transmission is input. When a selection result for permitting transmission is input, a conversational transmission process is performed in which information read out by the period designation process is transmitted to the maintenance server 51 by a constant transmission process. On the other hand, when a selection result indicating that transmission is not permitted is input, the plant server 12 does not transmit the contents of the requested operation record and information on the period to the maintenance server 51.
　なお、プラントサーバ１２から保守用システム５０へのプラントの運転記録の伝送は、期間指定処理により読み出した情報を、暗号化した上で光ディスク等の記録媒体に記憶し、記録媒体を保守用システム５０側に郵送することにより行われてもよい。この場合は、プラントサーバ１２は、記録媒体により伝送した、プラントの運転記録の内容及び期間の情報、及び暗号解除パスワードを、会話型伝送処理及び常時伝送処理を介して保守用システム５０に伝送する。 The plant operation record is transmitted from the plant server 12 to the maintenance system 50 by encrypting the information read out by the period specifying process and storing it in a recording medium such as an optical disk. It may be done by mailing to the side. In this case, the plant server 12 transmits the contents of the operation record of the plant and the information on the period and the descrambling password transmitted by the recording medium to the maintenance system 50 through the conversational transmission process and the constant transmission process. .
２．保守用システム５０
　保守用システム５０は、プラントの保守を行うための計算機から構成されている。本実施の形態では、保守用システム５０は、保守用サーバ５１を備えている。保守用サーバ５１は、プラントサーバ１２から伝送されたデータに基づいて、プラントの保守計画を作成する。 2. Maintenance system 50
The maintenance system 50 includes a computer for performing plant maintenance. In the present embodiment, the maintenance system 50 includes a maintenance server 51. The maintenance server 51 creates a plant maintenance plan based on the data transmitted from the plant server 12.
　保守用サーバ５１の各機能は、保守用サーバ５１が備えた処理回路及び記憶装置により実現される。保守用サーバ５１は、図５に示すように、ＣＰＵ（Central Processing Unit）等の演算処理装置６０（コンピュータ）、ＲＡＭ（Random Access Memory）、ＲＯＭ（Read Only Memory）、ハードディスク（ＨＤＤ）等の記憶装置６１、監視制御システム１０（プラントサーバ１２）等とデータ通信を行う通信装置６２、画像を表する画像表示装置６３、プラント側ユーザの入力を受け付ける入力装置６４等を備えている。プラントサーバ１２と保守用サーバ５１との間のデータ通信は、上記のように、アクセス権が制限され暗号化された専用回線を用いて行われる。本実施の形態では、画像表示装置６３及び入力装置６４は、サーバ端末装置６５に備えられている。 Each function of the maintenance server 51 is realized by a processing circuit and a storage device provided in the maintenance server 51. As shown in FIG. 5, the maintenance server 51 stores an arithmetic processing device 60 (computer) such as a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), a hard disk (HDD), or the like. The communication apparatus 62 which performs data communication with the apparatus 61, the monitoring control system 10 (plant server 12), etc., the image display apparatus 63 which represents an image, the input apparatus 64 which receives the input of a plant side user, etc. are provided. As described above, data communication between the plant server 12 and the maintenance server 51 is performed using an encrypted dedicated line with a limited access right. In the present embodiment, the image display device 63 and the input device 64 are provided in the server terminal device 65.
　保守用サーバ５１のハードディスク等の記憶装置６１には、各機能のためのプログラム５７、第１レベル、第２レベル、及び第３レベルの収集データベース５２、５３、５４、及び第２レベル及び第３レベルの保守データベース５５、５６等が記憶されている。保守用サーバ５１の各処理は、演算処理装置６０が、記憶装置６１に記憶されたプログラム（ソフトウェア）を実行し、記憶装置６１、通信装置６２、画像表示装置６３、及び入力装置６４等の他のハードウェアと協働することにより実現される。 The storage device 61 such as a hard disk of the maintenance server 51 includes a program 57 for each function, first level, second level, and third level collection databases 52, 53, 54, and second level and third level. Level maintenance databases 55, 56, etc. are stored. For each process of the maintenance server 51, the arithmetic processing device 60 executes a program (software) stored in the storage device 61, and in addition to the storage device 61, the communication device 62, the image display device 63, the input device 64, and the like. It is realized by cooperating with the hardware.
＜収集データベース＞
　図２に示すように、保守用サーバ５１は、プラントサーバ１２から伝送された第１レベルのプラントデータベース１３の情報を記憶する第１レベルの収集データベース５２、プラントサーバ１２から伝送された第２レベルのプラントデータベース１４の情報を記憶する第２レベルの収集データベース５３、及びプラントサーバ１２から伝送された第３レベルのプラントデータベース１５の情報を記憶する第３レベルの収集データベース５４を有している。 <Collection database>
As shown in FIG. 2, the maintenance server 51 includes a first level collection database 52 that stores information of the first level plant database 13 transmitted from the plant server 12, and a second level transmitted from the plant server 12. A second level collection database 53 for storing information on the plant database 14 and a third level collection database 54 for storing information on the third level plant database 15 transmitted from the plant server 12.
　保守用サーバ５１は、プラントサーバ１２からリアルタイムで伝送されてきた監視制御情報を、第１レベルの収集データベース５２に記憶する監視制御情報収集処理を実行する。監視制御情報収集処理は、常時伝送処理により行われる。監視制御情報は、上記のように、予め伝送を許可されたアクチュエータの駆動情報、センサの出力情報、プラントの運転状態、及びプラントの各部の異常を知らせる警報情報等とされる。 The maintenance server 51 executes monitoring control information collection processing for storing the monitoring control information transmitted from the plant server 12 in real time in the first level collection database 52. The monitoring control information collection process is always performed by a transmission process. As described above, the monitoring control information includes actuator driving information that is permitted to be transmitted in advance, sensor output information, plant operating status, and alarm information that notifies abnormality of each part of the plant.
　また、保守用サーバ５１は、サーバ端末装置６５の入力装置６４及び画像表示装置６３を介して、保守側ユーザから、伝送を要求する監視制御用の設定値が指定されると、指定された設定値の伝送要求をプラントサーバ１２側に伝送する設定値伝送要求処理を実行する。設定値伝送要求処理は、会話型共有処理により実行される。保守側ユーザは、各種の制御ゲイン、係数、判定値、警報発生判定閾値等の複数の設定値の内、伝送を要求する特定の設定値を指定する。全ての設定値が指定されてもよい。そして、保守用サーバ５１は、プラントサーバ１２から伝送されてきた監視制御用の設定値の情報を第２レベルの収集データベース５３に記憶する設定値収集処理を実行する。設定値収集処理は、常時伝送処理により実行される。 In addition, the maintenance server 51 receives the specified setting when a setting value for monitoring control requesting transmission is specified from the maintenance side user via the input device 64 and the image display device 63 of the server terminal device 65. A set value transmission request process for transmitting a value transmission request to the plant server 12 is executed. The set value transmission request processing is executed by conversational sharing processing. The maintenance user designates a specific set value for requesting transmission among a plurality of set values such as various control gains, coefficients, determination values, alarm generation determination threshold values, and the like. All set values may be specified. Then, the maintenance server 51 executes setting value collection processing for storing the monitoring control setting value information transmitted from the plant server 12 in the second level collection database 53. The set value collection process is executed by a constant transmission process.
　保守用サーバ５１は、サーバ端末装置６５の入力装置６４及び画像表示装置６３を介して、保守側ユーザから、伝送を要求するプラントの運転記録の内容及び期間が指定されると、指定されたプラントの運転記録の内容及び期間の伝送要求をプラントサーバ１２側に伝送する運転記録伝送要求処理を実行する。運転記録伝送要求処理は、会話型共有処理により実行される。保守側ユーザは、過去の監視制御情報、過去の監視制御用の設定値、過去のプラントの運用データ等の複数の運転記録の内、伝送を要求する特定の運転記録を指定すると共にその期間を指定する。そして、保守用サーバ５１は、プラントサーバ１２から伝送されてきた運転記録の内容及び期間の情報を第３レベルの収集データベース５４に記憶する運転記録収集処理を実行する。運転記録収集処理は、常時伝送処理により実行される。 When the maintenance server 51 specifies the content and period of the operation record of the plant that requires transmission from the maintenance-side user via the input device 64 and the image display device 63 of the server terminal device 65, the specified plant The operation record transmission request process for transmitting the contents of the operation record and the transmission request for the period to the plant server 12 side is executed. The operation record transmission request process is executed by an interactive sharing process. The maintenance-side user designates a specific operation record that requires transmission out of a plurality of operation records such as past monitoring control information, setting values for past monitoring control, past plant operation data, etc. specify. Then, the maintenance server 51 executes an operation record collection process for storing the contents and period information of the operation record transmitted from the plant server 12 in the third level collection database 54. The operation record collection process is always performed by a transmission process.
＜保守計画の作成＞
　図３に示すように、保守用サーバ５１は、第２レベルの保守データベース５５及び第３レベルの保守データベース５６を有している。第２レベルから第３レベルにレベルが上がるに従って、秘匿性が高くなる。ここで、第１レベルの保守データベースが設けられていないのは、外部に自由に伝送できる秘匿性の低いデータベースが設けられていないためである。第２レベル及び第３レベルの保守データベース５５、５６は、保守側ユーザにより整備され、記憶装置６１に記憶されている。 <Create maintenance plan>
As shown in FIG. 3, the maintenance server 51 includes a second level maintenance database 55 and a third level maintenance database 56. As the level increases from the second level to the third level, confidentiality increases. Here, the reason why the first level maintenance database is not provided is that there is no low confidential database that can be freely transmitted to the outside. The second-level and third- level maintenance databases 55 and 56 are maintained by the maintenance-side user and stored in the storage device 61.
　第２レベルの保守データベース５５には、監視制御用の設定値の設計値の情報が記憶されている。上記のように、監視制御用の設定値は、プラント計算機１１及びプラントサーバ１２等で実行される監視制御の処理で用いられる制御ゲイン、係数、判定値、警報発生判定閾値等とされており、実際にプラントを運転させて調整される可変値とされている。設計値の情報には、設定値の許容設定範囲、センサ、アクチュエータ、及び機械部品等のプラント部品の正常時又は劣化時の設定値、センサ、アクチュエータ、及び機械部品等のプラント部品の交換時期を表す設定値、プラントに異常があることを表す設定値、設定値の重要度、設定値の設定根拠の情報等が含まれる。 The second level maintenance database 55 stores information on design values of setting values for monitoring control. As described above, the set values for monitoring control are control gains, coefficients, determination values, alarm generation determination threshold values, etc. used in the monitoring control processing executed by the plant computer 11 and the plant server 12 and the like. The variable value is adjusted by actually operating the plant. The design value information includes the allowable setting range of the set value, the set value when the plant parts such as sensors, actuators, and machine parts are normal or deteriorated, and the replacement time of the plant parts such as sensors, actuators, and machine parts. The setting value to be represented, the setting value representing that there is an abnormality in the plant, the importance of the setting value, information on the basis for setting the setting value, and the like are included.
　第３レベルの保守データベース５６には、プラント部品の予備品の供給可能時間の情報が記憶されている。供給可能時間の情報には、予備品の在庫状態の情報が含まれる。予備品の在庫がある場合は、供給可能時間は、最短の時間に設定されている。在庫が無い場合は、供給可能時間は、発注から製造完了までの各プラント部品の通常のリードタイムに設定されている。 The third level maintenance database 56 stores information on the supply time of spare parts for plant parts. The information on the supply available time includes information on the inventory status of spare parts. When spare parts are in stock, the supply available time is set to the shortest time. When there is no stock, the supply available time is set to the normal lead time of each plant part from ordering to manufacturing completion.
　保守用サーバ５１は、プラントサーバ１２から伝送された監視制御情報、プラントサーバ１２から伝送された設定値と第２レベルの保守データベース５５に記憶された設定値の設計値との比較結果、及びプラントサーバ１２から伝送されたプラントの運転記録の少なくとも１つ以上に基づいて、プラント部品の交換必要時期を予測する交換時期予測処理を実行する。 The maintenance server 51 includes the monitoring control information transmitted from the plant server 12, the comparison result between the set value transmitted from the plant server 12 and the design value of the set value stored in the second level maintenance database 55, and the plant Based on at least one or more of the plant operation records transmitted from the server 12, a replacement time prediction process for predicting the replacement required time of plant parts is executed.
　例えば、保守用サーバ５１は、アクチュエータの駆動情報、センサの出力情報、プラントの運転状態等の監視制御情報に対して短期的な統計処理を行って、センサ、アクチュエータ、及び機械部品等のプラント部品の正常、異常度合、劣化度合等を判定し、プラント部品の交換必要時期を予測する。保守用サーバ５１は、統計処理に算出した標準偏差、又は理想値からの偏り度合が大きいほど、対応するプラント部品の異常度合又は劣化度合が高いと判定し、プラント部品の点検必要時期又は交換必要時期が近いと判定する。保守用サーバ５１は、プラントの物理モデル、統計モデル等を用いて予測した監視制御情報と、実際の監視制御情報とを比較して、予測値と実値との偏差が大きいほど、対応するプラント部品の点検必要時期又は交換必要時期が近いと判定する。また、保守用サーバ５１は、警報情報を受け取った場合は、警報情報の発生頻度又は警報情報の重要度が高いほど、対応するプラント部品の点検必要時期又は交換必要時期が近いと判定する。 For example, the maintenance server 51 performs short-term statistical processing on actuator drive information, sensor output information, and monitoring control information such as the plant operating state, and thereby provides plant parts such as sensors, actuators, and machine parts. The normality, abnormality degree, deterioration degree, etc. of the plant are judged and the time when the plant parts need to be replaced is predicted. The maintenance server 51 determines that the higher the standard deviation calculated for statistical processing or the deviation degree from the ideal value, the higher the degree of abnormality or deterioration of the corresponding plant part, and the time when inspection or replacement of the plant part is necessary Judge that the time is near. The maintenance server 51 compares the monitoring control information predicted using a physical model, a statistical model, or the like of the plant with the actual monitoring control information, and the larger the deviation between the predicted value and the actual value, the corresponding plant Judge that it is almost time to inspect or replace parts. In addition, when the maintenance server 51 receives the alarm information, the maintenance server 51 determines that the inspection necessary time or the replacement necessary time of the corresponding plant part is closer as the occurrence frequency of the alarm information or the importance of the alarm information is higher.
　また、保守用サーバ５１は、第２レベルの収集データベース５３に記憶されている実際の設定値と、第２レベルの保守データベース５５に記憶されている設定値の設計値とを比較して、センサ、アクチュエータ、及び機械部品等のプラント部品の正常、異常度合、劣化度合等を判定し、プラント部品の点検必要時期又は交換必要時期を予測する。設定値は、上記のように、監視制御の処理で用いられる制御ゲイン、係数、判定値、警報発生判定閾値等とされており、プラントの運転において調整される可変値である。設定値の設計値は、上記のように、設定値の許容設定範囲、プラント部品の正常時又は劣化時の設定値、プラント部品の交換時期を表す設定値、プラントの異常を表す設定値等とされる。 In addition, the maintenance server 51 compares the actual set value stored in the second level collection database 53 with the design value of the set value stored in the second level maintenance database 55 to obtain a sensor. The normality, abnormality degree, deterioration degree, etc. of plant parts such as actuators and machine parts are determined, and the time when inspection or replacement of the plant parts is necessary is predicted. As described above, the set value is a control gain, a coefficient, a determination value, an alarm generation determination threshold value, or the like used in the monitoring control process, and is a variable value that is adjusted during plant operation. As described above, the design value of the set value is the allowable set range of the set value, the set value when the plant part is normal or deteriorated, the set value indicating the replacement time of the plant part, the set value indicating the plant abnormality, etc. Is done.
　例えば、保守用サーバ５１は、実際の設定値が、設定値の許容設定範囲を超えている場合は、許容設定範囲の超過度合が大きいほど、対応するプラント部品の異常度合又は劣化度合が高いと判定し、プラント部品の点検必要時期又は交換必要時期が近いと判定する。保守用サーバ５１は、実際の設定値が、劣化時の設定値、又は交換時期を表す設定値、又は異常を表す設定値に近いほど、対応するプラント部品の点検必要時期又は交換必要時期が近いと判定する。 For example, when the actual setting value exceeds the allowable setting range of the setting value, the maintenance server 51 has a higher degree of abnormality or deterioration of the corresponding plant part as the degree of excess of the allowable setting range is larger. Judgment is made and it is determined that the time for inspection or replacement of plant parts is near. In the maintenance server 51, the closer the actual set value is to the set value at the time of deterioration, the set value representing the replacement time, or the set value representing the abnormality, the closer the inspection required time or the replacement required time of the corresponding plant part is. Is determined.
　保守用サーバ５１は、第３レベルの収集データベース５４に記憶されているプラントの運転記録に含まれる監視制御情報及び設定値等の長期的な変化を算出して、センサ、アクチュエータ、及び機械部品等のプラント部品の正常、異常度合、劣化度合等を判定し、プラント部品の点検必要時期又は交換必要時期を予測する。また、保守用サーバ５１は、監視制御情報及び設定値の最近の変化が大きくなっているほど、対応するプラント部品の点検必要時期又は交換必要時期が近いと判定する。保守用サーバ５１は、第３レベルの収集データベース５４に記憶されているプラントの運転記録に含まれる点検記録の点検頻度が高いほど、対応するプラント部品の点検必要時期又は交換必要時期が近いと判定する。 The maintenance server 51 calculates long-term changes such as monitoring control information and set values included in the operation record of the plant stored in the third level collection database 54, and includes sensors, actuators, machine parts, and the like. The normality, abnormality degree, deterioration degree, etc. of the plant parts are determined, and the time when inspection or replacement of the plant parts is necessary is predicted. Further, the maintenance server 51 determines that the inspection necessary time or the replacement necessary time of the corresponding plant part is closer as the recent changes in the monitoring control information and the set value are larger. The maintenance server 51 determines that the inspection necessary time or replacement time of the corresponding plant part is closer as the inspection frequency of the inspection record included in the operation record of the plant stored in the third level collection database 54 is higher. To do.
　そして、保守用サーバ５１は、予測したプラント部品の交換必要時期、及び第２レベルの保守データベース５５に記憶された予備品の供給可能時間の情報に基づいてプラントの保守計画を作成する保守計画作成処理を実行する。 Then, the maintenance server 51 creates a maintenance plan for creating a plant maintenance plan based on the predicted replacement time of the plant parts and information on the supply time of spare parts stored in the second level maintenance database 55. Execute the process.
　例えば、保守用サーバ５１は、交換の必要があると判定されたプラント部品の交換必要時期が、対応するプラント部品の予備品の供給可能時間の範囲内である場合は、交換必要時期の範囲内において予定されている定期保守時期でプラント部品を交換する保守計画を作成する。一方、保守用サーバ５１は、プラント部品の交換必要時期が、対応するプラント部品の予備品の供給可能時間の範囲内にない場合は、範囲内にないことを保守側ユーザに知らせる処理を行い、保守側ユーザが代替品を手配し、保守計画に反映させる等の対応を行えるようにする。また、保守用サーバ５１は、あるプラント部品の交換必要時期が現在であり、プラント部品の重要度が高く、対応するプラント部品の予備品の供給可能時間の範囲内である場合は、直ぐにプラント部品を交換する保守計画を作成する。 For example, the maintenance server 51 is within the range of the replacement required time when the replacement required time of the plant part determined to be required is within the range of the supplyable time of the spare part of the corresponding plant part. A maintenance plan is created to replace plant parts at the scheduled maintenance time. On the other hand, the maintenance server 51 performs a process of notifying the maintenance side user that it is not within the range when the replacement time of the plant part is not within the range of the supply time of the spare part of the corresponding plant part, The maintenance-side user can arrange for substitutes and take measures such as reflecting them in the maintenance plan. Further, when the maintenance server 51 needs to replace a certain plant part and the importance of the plant part is high and it is within the supply time of the spare part of the corresponding plant part, the plant part is immediately Create a maintenance plan to replace
　また、保守用サーバ５１は、点検の必要があると判定されたプラント部品の点検必要時期の範囲内で予定されている定期保守時期でプラント部品を点検する保守計画を作成する。保守用サーバ５１は、プラント部品の交換必要時期が現在であり、プラント部品の重要度が高い場合は、直ぐにプラント部品を点検する保守計画を作成する。この点検の保守計画の作成の際、点検により交換が必要になると予想されるプラント部品の予備品の供給可能時間が、上記の交換の場合と同様に、考慮されてもよい。保守用サーバ５１は、点検の保守計画に、必要に応じて、点検方法の情報を含ませてもよい。作成した保守計画は、保守用サーバ５１の記憶装置６１に記憶される。 Further, the maintenance server 51 creates a maintenance plan for inspecting the plant parts at the scheduled maintenance time scheduled within the range of the inspection required time of the plant parts determined to be inspected. The maintenance server 51 creates a maintenance plan for inspecting the plant parts immediately when the plant parts need to be replaced at the present time and the importance of the plant parts is high. When preparing the maintenance plan for this inspection, the supply time of the spare parts for the plant parts that are expected to be replaced by the inspection may be taken into consideration as in the case of the above replacement. The maintenance server 51 may include information on an inspection method in an inspection maintenance plan as necessary. The created maintenance plan is stored in the storage device 61 of the maintenance server 51.
　保守用サーバ５１は、作成した保守計画を、サーバ端末装置６５の画像表示装置６３を介して保守側ユーザに知らせるユーザ出力処理を実行し、保守側ユーザが確認できるようにする。保守側ユーザは、確認の結果、保守計画を変更する必要がある場合は、サーバ端末装置６５の入力装置６４を介して保守計画を変更する。保守用サーバ５１は、サーバ端末装置６５の入力装置６４を介して、作成した保守計画を監視制御システム１０に伝送してよいか否かのプラント側ユーザの選択結果を受け付けるユーザ入力処理を実行する。そして、保守用サーバ５１は、伝送を許可する選択結果が入力された場合は、保守計画を、プラントサーバ１２に伝送する保守計画伝送処理を実行する。保守計画伝送処理は、会話型共有処理により実行される。 The maintenance server 51 performs a user output process for notifying the created maintenance plan to the maintenance side user via the image display device 63 of the server terminal device 65 so that the maintenance side user can check the maintenance plan. If it is necessary to change the maintenance plan as a result of confirmation, the maintenance-side user changes the maintenance plan via the input device 64 of the server terminal device 65. The maintenance server 51 executes a user input process for receiving a selection result of the plant-side user as to whether or not the created maintenance plan may be transmitted to the monitoring control system 10 via the input device 64 of the server terminal device 65. . And the maintenance server 51 performs the maintenance plan transmission process which transmits a maintenance plan to the plant server 12, when the selection result which permits transmission is input. The maintenance plan transmission process is executed by an interactive sharing process.
　また、保守用サーバ５１は、交換予定のプラント部品の在庫がない場合は、保守計画に合わせてプラント部品の発注処理を行う。例えば、プラント部品の発注指令が、製造部門に伝達される。また、保守用サーバ５１は、保守計画に合わせて、プラント部品をプラントに供給する供給処理を行う。例えば、プラント部品の供給指令が、物流部門に伝達される。 Further, when there is no inventory of plant parts to be replaced, the maintenance server 51 performs plant part ordering processing in accordance with the maintenance plan. For example, a plant part ordering command is transmitted to the manufacturing department. The maintenance server 51 performs supply processing for supplying plant parts to the plant in accordance with the maintenance plan. For example, a supply instruction for plant parts is transmitted to the logistics department.
　プラントサーバ１２は、伝送された保守計画を、サーバ端末装置２５の画像表示装置２３を介して、プラント側ユーザに知らせるユーザ出力処理を実行すると共に、保守計画を、監視制御システム１０内の保守管理システム２６に伝送し、プラントの保守計画（工程、作業要領等）に反映させる。 The plant server 12 executes a user output process for informing the plant-side user of the transmitted maintenance plan via the image display device 23 of the server terminal device 25, and the maintenance plan in the monitoring control system 10. It is transmitted to the system 26 and reflected in the maintenance plan (process, work procedure, etc.) of the plant.
３．フローチャート
　監視制御システム１０（プラントサーバ１２）の処理の手順（プログラム及び方法）について、図６に示すフローチャートに基づいて説明する。図６のフローチャートの処理は、プラントサーバ１２の演算処理装置２０（コンピュータ）が、記憶装置２１に記憶されたプログラム１６（ソフトウェア）を実行することにより、実行される。 3. Flowchart The processing procedure (program and method) of the monitoring control system 10 (plant server 12) will be described based on the flowchart shown in FIG. The processing in the flowchart of FIG. 6 is executed when the arithmetic processing device 20 (computer) of the plant server 12 executes the program 16 (software) stored in the storage device 21.
　ステップＳ０１で、プラントサーバ１２は、上記のように、第１レベルのプラントデータベース１３に、プラントの監視制御情報を記憶する監視制御情報記憶処理（監視制御情報記憶ステップ）を実行する。 In step S01, the plant server 12 executes the monitoring control information storage process (monitoring control information storage step) for storing the plant monitoring control information in the first level plant database 13 as described above.
　ステップＳ０２で、プラントサーバ１２は、上記のように、第１レベルのプラントデータベース１３に記憶した監視制御情報の内、予め伝送を許可された監視制御情報を、リアルタイムで、保守用システム５０に伝送する監視制御情報伝送処理（監視制御情報伝送ステップ）を実行する。 In step S02, the plant server 12 transmits to the maintenance system 50 in real time the monitoring control information previously permitted to be transmitted among the monitoring control information stored in the first level plant database 13 as described above. Monitoring control information transmission processing (monitoring control information transmission step) to be executed.
　ステップＳ０３で、プラントサーバ１２は、上記のように、第２レベルのプラントデータベース１４に、プラントの監視制御で用いられる設定値を記憶する設定値記憶処理（設定値記憶ステップ）を実行する。 In step S03, the plant server 12 executes the set value storage process (set value storage step) for storing the set values used in the plant monitoring control in the second level plant database 14 as described above.
　ステップＳ０４で、プラントサーバ１２は、上記のように、第２レベルのプラントデータベース１４に記憶したプラントの監視制御用の設定値の内、保守用システム５０から要求された設定値の情報を、伝送を許可するか否かの判定結果に応じて、保守用システム５０に伝送する設定値伝送処理（設定値伝送ステップ）を実行する。 In step S04, the plant server 12 transmits, as described above, information on the setting value requested from the maintenance system 50 among the setting values for plant monitoring control stored in the plant database 14 at the second level. The set value transmission process (set value transmission step) to be transmitted to the maintenance system 50 is executed in accordance with the determination result of whether or not to permit.
　ステップＳ０５で、プラントサーバ１２は、上記のように、第３レベルのプラントデータベース１５に、過去のプラントの運転記録を記憶する運転記録記憶処理（運転記録記憶ステップ）を実行する。 In step S05, the plant server 12 executes the operation record storage process (operation record storage step) in which the operation record of the past plant is stored in the third-level plant database 15 as described above.
　ステップＳ０６で、プラントサーバ１２は、上記のように、第３レベルのプラントデータベース１５に記憶した過去のプラントの運転記録の内、保守用システム５０から要求された内容及び期間のプラントの運転記録を、伝送を許可するか否かの判定結果に応じて保守用システム５０に伝送する運転記録伝送処理（運転記録伝送ステップ）を実行する。 In step S06, the plant server 12 records the operation record of the plant for the contents and period requested from the maintenance system 50 among the operation records of the past plant stored in the plant database 15 of the third level as described above. Then, an operation record transmission process (operation record transmission step) to be transmitted to the maintenance system 50 according to the determination result of whether or not to permit the transmission is executed.
　次に、保守用システム５０（保守用サーバ５１）の処理の手順（プログラム及び方法）について、図７に示すフローチャートに基づいて説明する。図７のフローチャートの処理は、保守用サーバ５１の演算処理装置６０（コンピュータ）が、記憶装置６１に記憶されたプログラム５７（ソフトウェア）を実行することにより、実行される。 Next, the processing procedure (program and method) of the maintenance system 50 (maintenance server 51) will be described based on the flowchart shown in FIG. The processing in the flowchart of FIG. 7 is executed when the arithmetic processing device 60 (computer) of the maintenance server 51 executes the program 57 (software) stored in the storage device 61.
　ステップＳ１１で、保守用サーバ５１は、上記のように、監視制御システム１０からリアルタイムで伝送されてきた監視制御情報を、第１レベルの収集データベース５２に記憶する監視制御情報収集処理（監視制御情報収集ステップ）を実行する。 In step S11, the maintenance server 51 stores the monitoring control information transmitted from the monitoring control system 10 in real time in the first level collection database 52 as described above (monitoring control information). Collect step).
　ステップＳ１２で、保守用サーバ５１は、上記のように、監視制御システム１０に監視制御用の設定値の伝送を要求する設定値伝送要求処理（設定値伝送要求ステップ）を実行する。 In step S12, the maintenance server 51 executes the setting value transmission request process (setting value transmission request step) for requesting the monitoring control system 10 to transmit the monitoring control setting value as described above.
　ステップＳ１３で、保守用サーバ５１は、上記のように、監視制御システム１０から伝送されてきた監視制御用の設定値の情報を第２レベルの収集データベース５３に記憶する設定値収集処理（設定値収集ステップ）を実行する。 In step S13, the maintenance server 51 stores the setting value collection processing (setting value) for storing the monitoring control setting value information transmitted from the monitoring control system 10 in the second level collection database 53 as described above. Collect step).
　ステップＳ１４で、保守用サーバ５１は、上記のように、プラントの運転記録の内容及び期間を指定して、監視制御システム１０に伝送を要求する運転記録伝送要求処理（運転記録伝送要求ステップ）を実行する。 In step S14, the maintenance server 51 performs operation record transmission request processing (operation record transmission request step) for requesting transmission to the monitoring control system 10 by specifying the contents and period of the plant operation record as described above. Execute.
　ステップＳ１５で、保守用サーバ５１は、上記のように、監視制御システム１０から伝送されてきた運転記録の内容及び期間の情報を第３レベルの収集データベース５４に記憶する運転記録収集処理（運転記録収集ステップ）を実行する。 In step S15, the maintenance server 51, as described above, stores the operation record content and period information transmitted from the monitoring control system 10 in the third-level collection database 54 (operation record). Collect step).
　ステップＳ１６で、保守用サーバ５１は、上記のように、監視制御システム１０から伝送された監視制御情報、監視制御システム１０から伝送された設定値と第２レベルの保守データベース５５に記憶された設定値の設計値との比較結果、及び監視制御システム１０から伝送されたプラントの運転記録の少なくとも１つ以上に基づいて、プラント部品の交換必要時期を予測する交換時期予測処理（交換時期予測ステップ）を実行する。 In step S16, the maintenance server 51, as described above, the monitoring control information transmitted from the monitoring control system 10, the setting value transmitted from the monitoring control system 10, and the setting stored in the second level maintenance database 55. Replacement time prediction process for predicting the replacement time of plant parts based on at least one of the comparison result of the value with the design value and the operation record of the plant transmitted from the monitoring control system 10 (replacement time prediction step) Execute.
　そして、ステップＳ１７で、保守用サーバ５１は、上記のように、予測したプラント部品の交換必要時期、及び第２レベルの保守データベース５５に記憶された予備品の供給可能時間の情報に基づいてプラントの保守計画を作成する保守計画作成処理（保守計画作成ステップ）を実行する。 In step S17, the maintenance server 51 determines the plant part replacement time based on the predicted replacement time of the plant parts and the information on the supply time of the spare parts stored in the second level maintenance database 55 as described above. A maintenance plan creation process (maintenance plan creation step) for creating a maintenance plan is executed.
　ステップＳ１８で、保守用サーバ５１は、上記のように、作成した保守計画を、監視制御システム１０に伝送する保守計画伝送処理（保守計画伝送ステップ）を実行する。 In step S18, the maintenance server 51 executes a maintenance plan transmission process (a maintenance plan transmission step) for transmitting the created maintenance plan to the monitoring control system 10 as described above.
〔その他の実施の形態〕
　最後に、本発明のその他の実施の形態について説明する。なお、以下に説明する各実施の形態の構成は、それぞれ単独で適用されるものに限られず、矛盾が生じない限り、他の実施の形態の構成と組み合わせて適用することも可能である。 [Other Embodiments]
Finally, other embodiments of the present invention will be described. Note that the configuration of each embodiment described below is not limited to being applied independently, and can be applied in combination with the configuration of other embodiments as long as no contradiction arises.
（１）上記の実施の形態１においては、監視制御システム１０は、第１レベル、第２レベル、及び第３レベルのプラントデータベース１３、１４、１５の３つのレベルに階層分けされたプラントデータベースを有している場合を例として説明した。しかし、本発明の実施の形態はこれに限定されない。すなわち、監視制御システム１０は、少なくとも３つのレベルに階層分けされたプラントデータベースを有していればよく、４つ以上のレベルに階層分けされたプラントデータベースを有していてもよい。例えば、第３レベルよりも秘匿性の高く、外部への情報伝送が禁止された第４レベルのプラントデータベースを有してもよく、第３レベルのプラントデータベース１５が内部で複数に階層化されてもよい。監視制御システム１０のプラントデータベースのレベルに対応したレベルの収集データベースが、保守用システム５０に設けられる。 (1) In the first embodiment described above, the supervisory control system 10 divides the plant database divided into three levels of the first level, the second level, and the third level plant databases 13, 14, and 15. The case where it has is described as an example. However, the embodiment of the present invention is not limited to this. That is, the supervisory control system 10 may have a plant database divided into at least three levels and may have a plant database divided into four or more levels. For example, it may have a fourth level plant database that is more confidential than the third level and is prohibited from transmitting information to the outside, and the third level plant database 15 is internally layered into a plurality of layers. Also good. A collection database of a level corresponding to the level of the plant database of the monitoring control system 10 is provided in the maintenance system 50.
（２）上記の実施の形態１においては、保守用システム５０は、第２レベル及び第３レベルの保守データベース５５、５６の２つのレベルに階層分けされた保守データベースを有している場合を例として説明した。しかし、本発明の実施の形態はこれに限定されない。すなわち、保守用システム５０は、少なくとも第２レベル及び第３レベルの２つのレベルに階層分けされた保守データベースを有していればよく、３つ以上のレベルに階層分けされた保守データベースを有していてもよい。例えば、第３レベルよりも秘匿性の高い第４レベルの保守データベース、又は第２レベルよりも秘匿性の低い第１レベルの保守データベースを有してもよく、第３レベルの保守データベース５６が内部で複数に階層化されてもよい。 (2) In the first embodiment, the maintenance system 50 has an example in which the maintenance database 50 has the maintenance database divided into two levels of the maintenance databases 55 and 56 of the second level and the third level. As explained. However, the embodiment of the present invention is not limited to this. In other words, the maintenance system 50 only needs to have a maintenance database that is divided into at least two levels of the second level and the third level, and has a maintenance database that is divided into three or more levels. It may be. For example, a fourth level maintenance database having a higher secrecy than the third level or a first level maintenance database having a lower secrecy than the second level may be included. May be hierarchized into a plurality of layers.
　なお、本発明は、その発明の範囲内において、各実施の形態を自由に組み合わせたり、各実施の形態を適宜、変形、省略したりすることが可能である。 In the present invention, it is possible to freely combine the respective embodiments within the scope of the invention, and to appropriately modify and omit the respective embodiments.
１　プラント情報共有システム、１０　監視制御システム、１３　第１レベルのプラントデータベース、１４　第２レベルのプラントデータベース、１５　第３レベルのプラントデータベース、５０　保守用システム、５５　第２レベルの保守データベース、５６　第３レベルの保守データベース 1 Plant information sharing system, 10 Monitoring control system, 13 First level plant database, 14 Second level plant database, 15 Third level plant database, 50 Maintenance system, 55 Second level maintenance database, 56th 3 level maintenance database

Claims (2)

  1. 　プラントの監視制御システムが保有する情報をプラントの保守用システムへ伝送し、情報共有を行うプラント情報共有システムであって、
    　前記監視制御システムは、少なくとも第１レベルのプラントデータベース、第２レベルのプラントデータベース、及び第３レベルのプラントデータベースの３つのレベルに階層分けされたプラントデータベースを有し、
    　前記第１レベルのプラントデータベースには、プラントの監視制御情報が記憶され、前記監視制御システムは、予め伝送を許可された前記監視制御情報を、リアルタイムで、前記保守用システムに伝送し、
    　前記第２レベルのプラントデータベースには、プラントの監視制御で用いられる設定値が記憶され、前記監視制御システムは、前記保守用システムから要求された前記設定値の情報を、伝送を許可するか否かの判定結果に応じて前記保守用システムに伝送し、
    　前記第３レベルのプラントデータベースには、過去のプラントの運転記録が記憶され、前記保守用システムから要求された内容及び期間の前記プラントの運転記録を、伝送を許可するか否かの判定結果に応じて前記保守用システムに伝送するプラント情報共有システム。     A plant information sharing system that transmits information held by a plant monitoring and control system to a plant maintenance system and shares information,
    The supervisory control system has a plant database hierarchically divided into three levels of at least a first level plant database, a second level plant database, and a third level plant database,
    The first level plant database stores plant monitoring control information, and the monitoring control system transmits the monitoring control information permitted to be transmitted in advance to the maintenance system in real time,
    The second level plant database stores setting values used in plant monitoring control, and the monitoring control system permits transmission of the setting value information requested from the maintenance system. According to the result of the determination is transmitted to the maintenance system,
    In the third-level plant database, past plant operation records are stored, and the plant operation records for the contents and period requested from the maintenance system are used as a result of determination as to whether or not transmission is permitted. A plant information sharing system for transmitting to the maintenance system accordingly.
  2. 　前記保守用システムは、少なくとも第２レベルの保守データベース及び第３レベルの保守データベースの２つのレベルに階層分けされた保守データベースを有し、
    　前記第２レベルの保守データベースには、前記設定値の設計値の情報が記憶され、
    　前記第３レベルの保守データベースには、プラント部品の予備品の供給可能時間の情報が記憶され、
    　前記保守用システムは、前記監視制御システムから伝送された前記監視制御情報、前記監視制御システムから伝送された前記設定値と前記第２レベルの保守データベースに記憶された前記設計値との比較結果、及び前記監視制御システムから伝送された前記プラントの運転記録の少なくとも１つ以上に基づいて、前記プラント部品の交換必要時期を予測し、
    　予測した前記プラント部品の交換必要時期、及び前記第２レベルの保守データベースに記憶された前記予備品の供給可能時間の情報に基づいてプラントの保守計画を作成する請求項１に記載のプラント情報共有システム。     The maintenance system has a maintenance database that is hierarchically divided into at least two levels of a second level maintenance database and a third level maintenance database;
    The second level maintenance database stores design value information of the set values,
    In the maintenance database of the third level, information on the supply time of spare parts for plant parts is stored,
    The maintenance system includes the monitoring control information transmitted from the monitoring control system, a comparison result between the set value transmitted from the monitoring control system and the design value stored in the second level maintenance database, And, based on at least one of the operation records of the plant transmitted from the supervisory control system, predicting the time when the plant parts need to be replaced,
    2. The plant information sharing according to claim 1, wherein a plant maintenance plan is created based on the predicted replacement time of the plant parts and information on the supplyable time of the spare parts stored in the second level maintenance database. system.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000207318A (en) * 1999-01-18 2000-07-28 Yokogawa Electric Corp Remote maintenance system
JP2003114294A (en) * 2001-10-04 2003-04-18 Toshiba Corp Monitor, diagnosis, inspection and maintenance system for power-generating plant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000207318A (en) * 1999-01-18 2000-07-28 Yokogawa Electric Corp Remote maintenance system
JP2003114294A (en) * 2001-10-04 2003-04-18 Toshiba Corp Monitor, diagnosis, inspection and maintenance system for power-generating plant

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