CN108984175A - The power grid SVG line chart methods of exhibiting of object-oriented suitable for mobile device - Google Patents
The power grid SVG line chart methods of exhibiting of object-oriented suitable for mobile device Download PDFInfo
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Abstract
The present invention relates to a kind of power grid SVG line chart methods of exhibiting of object-oriented suitable for mobile device, the following steps are included: defining graphics element base, define grid equipment typelib, analytics engine is scanned SVG graphic file, device object is instantiated as to each grid equipment, graphic element object is turned to all graphical element instances and is added in graphic element container, the description attribute and topological attribute of initialization apparatus object, generate the graphical model file of object-oriented, the content that mobile device reads graphical model file completes the displaying of power grid SVG graphic file, the refreshing for completing real-time running data on figure is communicated by HTTPS/socket.Structure of the invention is clear, is easily managed and extends, and improves overall performance, avoid using there are the interface of security breaches, ensure that the safety of communication data, can show more detailed grid equipment description information and topology information.
Description
Technical field
The invention belongs to smart grid information system management technical fields, and in particular to a kind of suitable for mobile terminal device
The methods of exhibiting of the power grid SVG format line chart of object-oriented.
Background technique
It is support, promotion power supply clothes with technological means such as information-based, automations with gradually going deep into for smart grid construction
Business quality, becomes the core of electric power enterprise development.Power grid real time execution prison based on mobile device (tablet computer, smart phone)
Depending on can be realized the real-time running state for monitoring power grid at any time, everywhere, being mentioned for work such as power system monitor, scheduling and O&M maintenance
For convenience.Carry out the monitoring of power grid real time execution on the mobile apparatus, the main parsing including electric network wiring scheme and rendering, based on connecing
The real-time running data of line chart monitors and the publication and displaying of other important informations, wherein first two are basis and emphasis.
SVG (scalable vector graphics) is based on extensible markup language, is a kind of common power grid line chart file format.
Currently, for the power grid SVG format line chart document analysis of mobile device and rendering and the real-time running data based on wiring diagram
Monitoring method specifically includes that
1) figure displaying and data monitoring are carried out based on browser；
This method is responsible for carrying out SVG format single line by browser by opening SVG format single line map file in a browser
The parsing and rendering of figure, while real time data is requested to server-side by http communication timing using JavaScript script, it takes
After obtaining data, data parsing is carried out by JavaScript script according to the data format of agreement, and will be real-time according to Data Identification
Data update is shown on figure, realizes that figure is shown and real-time running data monitors.The advantages of this method, is to develop work
Work amount is small, as long as defining data format and completing data parsing, if having been realized in figure based on web show and
Data monitoring then can be reused directly.But there is also some problems, parsing, displaying and data parsing of figure etc. are all
Dependent on browser, influence of the overall performance vulnerable to browser takes a long time when figure is larger；Meanwhile passing through primary language
Calling the interface of JavaScript script method has security breaches, and there are security risks；In addition, the information shown only includes presentation
Data lack power network topology information.
2) figure displaying is carried out based on browser kernel；
This method and scheme 1) it is similar, it is responsible for carrying out parsing and the wash with watercolours of SVG format line chart by browser kernel component
Dye, unlike, using the primary development language of mobile device operation system, (such as Android is Java to this method, and iOS is
Objective C), by HTTP/Socket communication timing to server-side request real time data；After obtaining data, according to agreement
Format data parsing is carried out by primary development language, and JavaScript script method is called, by script method according to data
Real time data update is shown on figure by mark, by browser kernel and primary development language be implemented in combination with figure show and
Data monitoring.The method is in method 1) on the basis of, data communication is carried out by using the primary development language of system, avoid by
Communication interface is exposed to browser, while the parsing of real time data is also completed by primary development language, reduces to a certain degree whole
Degree of dependence of the body performance to browser kernel.But the parsing of figure, displaying are still completed by browser kernel, and show
Information also lack power network topology information；In addition, having safety by the interface of primary language call JavaScript script method
Loophole, there are security risks.
Summary of the invention
In order to solve the above technical problems, the invention proposes respectively by the graphical analysis engine of object-oriented and system painting canvas
The parsing and rendering for completing figure not only departing from the dependence to browser (browser kernel), but also are avoided using presence
The interface of security breaches solves security risk present in former scheme；The present invention proposes to separate graphical analysis and rendering, by
The graphical analysis engine of the object-oriented of operation on the server carries out graphical analysis, forms the object-oriented of binary format
Then iconic model file is completed the rendering of figure by the system painting canvas of mobile device based on model file, improve work effect
Rate；In addition, after each grid equipment is resolved to object by category of the present invention, according to the content in description library and topology information base,
Adding description information, topological relation and interoperability event attribute, the figure finally shown on the mobile apparatus for object both included
The basic informations such as figure and connection type also include the description information and topological relation of grid equipment.It is of the present invention
Technical solution is as follows:
The power grid SVG line chart methods of exhibiting of object-oriented suitable for mobile device, comprising the following steps:
Step 1, the different type according to the graphic element of the equipment of composition power grid, all define one to every a kind of graphic element
The attribute of a class and such graphic element defines graphics element base；
Step 2, the different type according to the equipment of composition power grid, to every a kind of grid equipment all define a class and
The attribute and method of such grid equipment define grid equipment typelib；
Step 3 calls power grid SVG graphic file, and the analytics engine on server is scanned SVG graphic file；
Step 4, to each grid equipment, be instantiated as according to the description of the grid equipment typelib defined in step 2
Object, referred to as device object create the graphic element container of device object；
Step 5, to all graphic elements for forming each grid equipment, according to the graphics element base defined in step 1
Description be successively instantiated as object, referred to as graphic element object, according to the attribute of graphic element label in SVG graphic file and
Whether its value, the attribute for initializing graphic element object (including line segment pattern, the extremity of segment point pattern, line segment color, close from beginning to end
Close, whether fill, Fill Color, line width, path, profile point set, font, font size, font color, in font style
It is one or more), and the type according to graphic element, graphic element object is added to the equipment instantiated in step 4
In the graphic element container of object (i.e. the component relationship of building figure element object to device object)；
Step 6 is called and is retrieved Power System description library and topology database, and instantiates according in search result initialization step 4
The description attribute and topological attribute of obtained device object, including device id, device type, device name, device numbering and open up
Flutter relationship；
Step 7, to each device object, according to the value for the attribute being arranged in step 5,6, according to defined in step 1
The description of grid equipment typelib defined in the description of graphics element base and step 2, the interoperator of generating device object
Method, comprising: amplify, reduce, slide, click, choose；And method for drafting and method is redrawn, and generate the figure of object-oriented
Model file；Herein, the amplification in the mutual operation method of device object, diminution, sliding and the drafting of device object and again
It draws, can be finally decomposed to successively execute completion by all graphic element object corresponding methods for forming the device object；Mutually behaviour
Make the click in method, is triggered by the click method of any graphic element object of component devices object, then execute equipment pair
Elephant chooses method to complete；Choosing in mutual operation method chooses method to hold by all graphic elements of component devices object
Row is completed；
The content for the graphical model file that step 8, mobile device read step 7 generate, completes the loading of device object, according to
The secondary method for drafting for calling device object, carries out the drafting of device object figure on system painting canvas, completes power grid SVG figure text
The displaying of part；
Step 9 communicates timing acquisition power grid real-time running data by HTTPS/socket, after parsing, correlation is called to set
Standby object graphic element is redrawn method (redrawing here redraws method defined in method i.e. step 7), completes real time execution
Refreshing of the data on figure.
Preferably, the different type that the graphic element of the equipment of power grid is formed described in step 1 includes: straight line, ellipse, folding
Line, rectangle, polygon, triangle, hot spot, curve, point, character.
Preferably, the specific method that graphics element base is defined described in step 1 is: all defining one to every a kind of graphic element
A class, the attribute of such graphic element include: line segment pattern, extremity of segment point pattern, line segment color, whether head and the tail closure, whether
Filling, Fill Color, line width, path, profile point set, font, font size, font color, one in font style or
It is multiple, for describing unique identification, position, size, color, shape and the pattern of graphical display；Definition is used to interact behaviour
The attribute (method) of work, including amplification, diminution, sliding, click, choose；And it defines graphic element method for drafting and redraws
Method.Herein, the mutual operation method of graphic element, method for drafting and the counterparty for redrawing figure base class of the method based on system
Method is realized.
Preferably, the different type for the equipment of power grid being formed described in step 2 includes: switch, disconnecting link, bus, feeder line, change
Depressor, fault detector, grounding switch, capacitor, arrester, PT, CT, arc suppression coil etc..
Preferably, the specific method that grid equipment typelib is defined described in step 2 is: all fixed to every a kind of grid equipment
An adopted class, the attribute of such grid equipment include: the container for forming the graphic element of such grid equipment, every class graphic element
One container, the number in container comprising such graphic element are 0 or more；It defines the description information attribute of grid equipment and opens up
Flutter information attribute；It defines the method for being used to interoperate, pattern drawing method and redraws method.
Preferably, calling described in step 6 and retrieve Power System description library and topology database and according to search result initialize belong to
Property specific method be: while carrying out the parsing of SVG graphic file, according to the unique identification (ID) of each grid equipment,
The description information and topology information that the equipment is retrieved in Power System description information bank and topology information base, according to the information pair retrieved
The description information attribute and topology information attribute of the grid equipment instance objects carry out assignment.
Preferably, the specific method that the graphical model file of object-oriented is generated described in step 7 is: completing step 6
It is achieved after work, to the information of generation, saves as the graphical model file of the object-oriented of binary format.
Beneficial effects of the present invention:
1) each grid equipment in figure is resolved to an object by the present invention, and by its figure constitution, graphic style,
Graphical display, interactive operation, description library and topology information etc. are all as the attribute of the object.Wherein, the grid equipment is constituted
Each graphic element is used as an object again, and graphic style, graphical display, interactive operation of the graphic element etc. are used as the figure again
The attribute of shape element object.This Object--oriented method, so that graphic definition, view rendering and display and real-time running data
Monitoring can layered shaping, it is clear in structure, be easily managed and extend.
2) present invention to the parsing of grid graph with show and real-time running data based on figure monitor eliminate the reliance on it is clear
It lookes at device (browser kernel), and system painting canvas is used to carry out the displaying of figure and the displaying of real-time running data.And to figure solution
This expending hardware resource of the task is analysed, can be carried out on high performance server, improve overall performance.
3) present invention completes the real time execution based on figure using the HTTPS/socket communication based on primary development language
Data monitoring avoids ensure that the safety of communication data using there are the interfaces of security breaches.
4) present invention can show more detailed grid equipment description information and topology information；Meanwhile being based on this programme
Be convenient for extended attribute, the information of displaying can also be extended as needed, show more information, to power system monitor,
The work such as scheduling and O&M maintenance are assisted.
Detailed description of the invention
Fig. 1 is logical procedure diagram of the invention.
Specific embodiment
With reference to the accompanying drawing, embodiments of the present invention are illustrated.
The technological means that the present invention uses is the power grid SVG graphical analysis and rendering method of object-oriented.In SVG figure text
In part, all kinds of grid equipment figures are defined, and every a kind of grid equipment is made of different graphic elements.It is wherein different
Graphic element is defined in the form of label (XML tag), and the type of grid equipment represented by graphic element, position,
Size, color, shape, unique identification, font style, interoperability event attribute are then defined by tag attributes.
This method carries out the parsing of power grid SVG format single line map file and the displaying of power grid SVG format single line map file
It splits, will be all divided into two originally by the work that mobile device is completed, wherein it is higher by performance to calculate more complicated part
Server is completed, and is calculated relatively simple part and then completed by mobile device.Firstly, by run on the server towards right
The graphical analysis engine of elephant carries out the parsing of SVG format single line map file, it scans entire SVG format single line map file, to text
Each grid equipment defined in part is instantiated as object (i.e. device object) one by one according to type, creation composition grid equipment
Graphic element container.Then, graphic element object is instantiated as one by one to the graphic element of composition grid equipment, by label category
Property the patterns such as the grid equipment that the defines position, size, color, the shape that show in the graphic to be then initialized as graphic element corresponding
The value of attribute, and graphic element category is added in the graphic element container of composition grid equipment.Secondly, analytics engine root
According to the Power System description library of setting and the data source of topology information base, retrieved in the database, and initial according to search result
Change the description information and topology information attribute of device object；Meanwhile the value of the device object according to abovementioned steps setting, definition are set
For the mutual operation method of object, method for drafting and method is redrawn, completes the parsing of SVG format single line map file.Finally, will parsing
Result save as binary form object-oriented graphical model file.
Mobile device, by the content of reading model file, is completed to set after the graphical model file for obtaining object-oriented
The loading of standby Drawing Object calls the method for drafting of object then according to the value of object properties, completes figure on system painting canvas
The rendering and display of upper all devices；And it is communicated by primary development language by HTTPS/socket and completes power grid real time execution number
According to acquisition, and parses, flushes on figure.
As shown in Figure 1, being logical procedure diagram of the invention.The power grid SVG list of object-oriented suitable for mobile device
Line chart methods of exhibiting, comprising the following steps:
Step 1, according to composition power grid equipment graphic element different type, define graphics element base；Graphic element
Type include: straight line, ellipse, broken line, rectangle, polygon, triangle, hot spot, curve, point, character.To every a kind of pattern primitive
Element all define a class, the attribute of such graphic element include: line segment pattern, extremity of segment point pattern, line segment color, whether head and the tail
Be closed, whether fill, Fill Color, line width, path, profile point set, font, font size, font color, in font style
One or more, for describing unique identification, position, size, color, shape and the pattern of graphical display；Definition be used into
The attribute (method) of row interactive operation, including amplification, diminution, sliding, click, choose；And define graphic element drafting side
Method and redraw method.
Only one graphics element base in the graphical analysis engine of an object-oriented need to only be initialized in analytics engine
Shi Jianli.The definition example of certain class graphic element is following (Java) in graphics element base:
Step 2, according to composition power grid equipment different type, define grid equipment typelib；Grid equipment type packet
It includes: switch, disconnecting link, bus, feeder line, transformer, fault detector, grounding switch, capacitor, arrester, PT, CT, arc blowout wire
Circle etc..One class is all defined to every a kind of grid equipment, such attribute includes: the graphic element for forming such grid equipment
Container, one container of every class graphic element, the number in container comprising such graphic element are 0 or more；Define grid equipment
Description information attribute and topology information attribute；It defines the method for being used to interoperate, pattern drawing method and redraws method.
It is identical as graphics element base, only one device type library in the graphical analysis engine of an object-oriented, only
It need to be established when analytics engine initializes.The definition example of certain class grid equipment is following (Java) in grid equipment typelib:
Step 3 calls power grid SVG graphic file, and the analytics engine on server is scanned SVG graphic file.
Step 4, to each grid equipment, be instantiated as according to the description of the grid equipment typelib defined in step 2
Object, referred to as device object create the graphic element container of device object.
Step 5, to all graphic elements for forming each grid equipment, according to the graphics element base defined in step 1
Description be successively instantiated as object, referred to as graphic element object, according to the attribute and its value of graphic element label in SVG file
The attribute of graphic element object, and the type according to graphic element are initialized, graphic element object is added to example in step 4
Change in the graphic element container of obtained device object (i.e. the component relationship of building figure element object to device object).
Power System description library and topology database are called and retrieved to step 6, and according to search result init attributes；Carrying out SVG
While graphic file parses, according to the unique identification (ID) of each grid equipment, in Power System description information bank and topology information
The description information and topology information that the equipment is retrieved in library, the description according to the information retrieved to the grid equipment instance objects
Information attribute and topology information attribute carry out assignment.
Step 7, to each device object, according to the value for the attribute being arranged in step 5,6, according to defined in step 1
The description of grid equipment typelib defined in the description of graphics element base and step 2, the interoperator of generating device object
Method (including amplification, diminution, sliding, click, choose), method for drafting and method is redrawn, deposited after the completion, to the information of generation
Shelves, save as the graphical model file of the object-oriented of binary format.
The content for the graphical model file that step 8, mobile device read step 7 generate, completes the loading of device object, according to
The secondary method for drafting for calling device object, carries out the drafting of device object figure on system painting canvas, completes power grid SVG figure text
The displaying of part.
Step 9 communicates timing acquisition power grid real-time running data by HTTPS/socket, after parsing, correlation is called to set
Standby object graphic element redraws method, completes refreshing of the real-time running data on figure.
In the present embodiment, step 1-7 is run in server end, and step 8-9 is run in mobile device end.
Claims (7)
1. being suitable for the power grid SVG line chart methods of exhibiting of the object-oriented of mobile device, which is characterized in that including following step
It is rapid:
Step 1, the different type according to the graphic element of the equipment of composition power grid, all define one to every a kind of graphic element
The attribute of class and such graphic element defines graphics element base；
Step 2, the different type according to the equipment of composition power grid, to every a kind of grid equipment all define a class and such
The attribute and method of grid equipment define grid equipment typelib；
Step 3 calls power grid SVG graphic file, and the analytics engine on server is scanned SVG graphic file；
Step 4, to each grid equipment, be instantiated as object according to the description of the grid equipment typelib defined in step 2,
Referred to as device object creates the graphic element container of device object；
Step 5, to all graphic elements for forming each grid equipment, according to retouching for the graphics element base defined in step 1
It states and is successively instantiated as object, referred to as graphic element object, it is initial according to the attribute of graphic element label in SVG file and its value
Change the attribute of graphic element object, and the type according to graphic element, graphic element object is added in step 4 and is instantiated
To device object graphic element container in；
Step 6 is called and is retrieved Power System description library and topology database, and obtained according to instantiation in search result initialization step 4
Device object description attribute and topological attribute；
Step 7, to each device object, according to the value for the attribute being arranged in step 5,6, according to the figure defined in step 1
The description of grid equipment typelib defined in the description of element database and step 2, the mutual operation method of generating device object, packet
Amplification is included, diminution, sliding, clicks, choose；And method for drafting and method is redrawn, and generate the graphical model text of object-oriented
Part；
The content for the graphical model file that step 8, mobile device read step 7 generate, completes the loading of device object, successively adjusts
With the method for drafting of device object, the drafting of device object figure is carried out on system painting canvas, completes power grid SVG graphic file
It shows；
Step 9 communicates timing acquisition power grid real-time running data by HTTPS/socket, and relevant device object is called after parsing
Graphic element redraws method, completes refreshing of the real-time running data on figure.
2. the power grid SVG line chart methods of exhibiting of the object-oriented according to claim 1 suitable for mobile device, special
Sign is, formed described in step 1 graphic element of the equipment of power grid different type include: straight line, ellipse, broken line, rectangle,
Polygon, triangle, hot spot, curve, point, character.
3. the power grid SVG line chart methods of exhibiting of the object-oriented according to claim 2 suitable for mobile device, special
Sign is that the specific method that graphics element base is defined described in step 1 is: a class is all defined to every a kind of graphic element, it should
The attribute of class graphic element includes: line segment pattern, extremity of segment point pattern, line segment color, whether head and the tail are closed, fill, fill out
One or more of color, line width, path, profile point set, font, font size, font color, font style are filled, is used
To describe unique identification, position, size, color, shape and the pattern of graphical display；Definition is used to interact the side of operation
Method, including amplification, diminution, sliding, click, choose；And it defines graphic element method for drafting and redraws method.
4. the power grid SVG line chart methods of exhibiting of the object-oriented according to claim 1 suitable for mobile device, special
Sign is that the different type that the equipment of power grid is formed described in step 2 includes: switch, disconnecting link, bus, feeder line, transformer, event
Hinder indicator, grounding switch, capacitor, arrester, PT, CT, arc suppression coil.
5. the power grid SVG line chart methods of exhibiting of the object-oriented according to claim 4 suitable for mobile device, special
Sign is that the specific method that grid equipment typelib is defined described in step 2 is: all defining one to every a kind of grid equipment
Class, the attribute of such grid equipment include: the container for forming the graphic element of such grid equipment, every class graphic element one appearance
Device, the number in container comprising such graphic element are 0 or more；Define the description information attribute and topology information of grid equipment
Attribute；It defines the method for being used to interoperate, pattern drawing method and redraws method.
6. the power grid SVG line chart of the object-oriented according to claim 1-5 suitable for mobile device is shown
Method, which is characterized in that calling described in step 6 is simultaneously retrieved Power System description library and topology database and initialized according to search result
The specific method of attribute is: while carrying out the parsing of SVG graphic file, according to the unique identification of each grid equipment: ID,
The description information and topology information that the equipment is retrieved in Power System description information bank and topology information base, according to the information pair retrieved
The description information attribute and topology information attribute of the device object instantiated in step 4 carry out assignment.
7. the power grid SVG line chart of the object-oriented according to claim 1-5 suitable for mobile device is shown
Method, which is characterized in that the specific method that the graphical model file of object-oriented is generated described in step 7 is: step 6 is completed
It is achieved after work, to the information of generation, saves as the graphical model file of the object-oriented of binary format.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109828755A (en) * | 2019-01-14 | 2019-05-31 | 江苏金智科技股份有限公司 | Electric power graphs methods of exhibiting |
| CN113111226A (en) * | 2021-04-14 | 2021-07-13 | 广东电网有限责任公司佛山供电局 | Automatic loading method and system for real-time measurement data of distribution network line distribution diagram |
| CN114978933A (en) * | 2022-05-25 | 2022-08-30 | 安天科技集团股份有限公司 | Display method and device for display elements of three-dimensional topology |
| CN115358030A (en) * | 2022-07-07 | 2022-11-18 | 国网江苏省电力有限公司徐州供电分公司 | Topological structure generation method and system based on distribution network line data |
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