CN102750358A - Mapping method and system of system data model to common information model (CIM) - Google Patents
Mapping method and system of system data model to common information model (CIM) Download PDFInfo
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Abstract
The invention relates to a mapping method and a system of a system data model to a CIM. The method includes configuring model mapping rules, receiving model files from corresponding application systems, and verifying and analyzing the model files to obtain information data of the application systems; judging whether model mapping rule files are loaded by the mapping system, if the files are not loaded, building a mapping rule between a private data model and the CIM through a configuration tool for model mapping rules; according to the mapping rule, private information data of the application systems are converted into CIM data and are stored in a CIM library through a mapping unit; and finally, obtaining all information data by browsing the list structure of a whole CIM data library, organizing information data according to resource description framework (RDF) specifications, exporting standard CIM/extensible markup language (XML) files for being called by other application services and components.
Description
Technical field
The present invention relates to power system automatic field, be specifically related to mapping method and the system of a kind of system data model to the CIM model.
Background technology
The develop rapidly of the Along with computer technology and the communication technology is with universal; The power industry Informatization Development is swift and violent; Data is mutual and shared more and more frequent between the inner extensive application of the electric power enterprise system; Yet when application system development designed, the description of electric power system model was not quite similar, and how to describe the application that electric system depends on that usually each are different.These application systems are often by different manufacturers design research and development; Based on different operating systems and data platform; Data, information format are incompatible, and " information island " phenomenon that forms therefrom makes ERM not to be fully utilized, and cause interoperability difficulty between information sharing and system.In order to solve the power system information sharing problem; Set up a power system information model standard, open; International Electrotechnical Commission has defined electric system common information model CIM as the unified data model between electric system jointly through IEC 61970 and IEC 61968 standards; It has proposed (the Common Information Model with common information model CIM; Common information model) as EMS (Energy management system; EMS)/and the semantic basis of each application system information interaction of DMS (distribution management system, distribution management system), avoided directly changing between the different system information model.The present invention is directed to data between the isomery application system, the skimble-scamble problem of information format, proposed to convert each application system private data model into method based on the CIM model.The present invention adopts the method that the privately owned model file of application system is mapped as the CIM model file of IEC 61970/61968 regulation; Not only meet power system development trend with the CIM model as the public information interaction models; Can satisfy simultaneously the integrated demand of existing application system, have extensive applicability and perspective in present stage.
Summary of the invention
Deficiency to prior art; The present invention provides mapping method and the system of a kind of system data model to the CIM model; Be intended to solve the model isomery problem between each application system in the adapted electrical domain; Data interaction between each isomery application system of realization electric power enterprise provides technical support for system information is integrated with interoperability with shared.
A kind of mapping method provided by the invention is mapped to the CIM model with the application system private data model; Its improvements are that said mapping method comprises the steps:
(1) allocation models mapping ruler and read the model file of application system;
(2) model file to said application system carries out verification, and the qualified document analysis algorithm that then calls of verification is resolved, and obtains all information datas in the model file;
(3) the mapping ruler storehouse judges whether to load said model mapping rule file; If load and then carry out next step; Otherwise set up the mapping ruler of said application system private data model and CIM model at the mapping block configuration interface;
(4) map unit is the CIM model data and deposits in the form of CIM relational database application system private information data-switching according to said mapping ruler;
(5) data message in the said CIM relational database of traversal is organized data according to resource description framework, derives the CIM/XML file of standard, for other assemblies or service call.
Wherein, step (1) user sets up the mapping ruler between said application system private data model and the CIM model according to the corresponding relation between said application system private data model and the CIM model in configuration tool.
Wherein, the step of setting up model mapping rule comprises:
1. set up the whole network CIM model bank;
2. delete irrelevant model according to the application system demand, it is redundant to reduce model, and the CIM model is minimized;
3. in configuration tool, import application system model file and CIM model file, the configuration mapping ruler is realized the mapping between application system model and the CIM model.
Wherein, The said checking procedure to said application system model file of step (2) is: whether the model file of judging application system meets its corresponding XML Schema standard; If then carry out step (3), otherwise high-ranking officers' error checking false information returns to application system.
The present invention is based on a kind of system data model that another purpose provides mapped system to the CIM model, its improvements are that said mapped system comprises document analysis module, map unit and the data model storage unit that connects successively; Said document analysis module is used for said application system model file is resolved with the information extraction data; Said map unit is used to dispose and store the mapping ruler between said application system private data model and the common information model CIM, and realizes mutual conversion between the two; Said data model storage unit is used for storing, manages, safeguards common model information.
Wherein, said document analysis module model file that said application system is imported into is resolved; Said document analysis module adopts the DOM mode mutually nested with the SAX resolver to extract data message; Said SAX resolver is used for all data designated information of sequential search XML file; Said DOM resolver is used for the corresponding data item of certain specify labels of stochastic searching, obtains data message and carries out stores processor.
Wherein, said map unit comprises mapping ruler storehouse, configuration tool and modular converter; Said configuration tool is used to set up the mapping ruler between privately owned model of said application system and the CIM model; Said modular converter reads that stored mapping information realizes the conversion between privately owned model of said application system and the CIM model in the mapping ruler storehouse.
Wherein, said data model storage unit comprises and comprises CIM model bank, management tool and browser; Said CIM model bank is used to store common model information; Said management tool and said browser provide the feature operation of the importing of common model information/derive, browse, inquire about, revise, upgrade.
With the prior art ratio, beneficial effect of the present invention is:
1, the present invention adopts common information model CIM as master pattern, has avoided directly changing between the different system information model, has good extendability, opening and maintainability, can effectively reduce the integrated cost of development in the system upgrade process.
2, the present invention adopts CIM model bank storage standards data message, can guarantee the uniqueness and the standard of model data, with respect to the direct transmission manner of file, has advantages such as data capacity is big, conversion efficiency is high, be easy to administer and maintain.
3, the present invention proposes a kind of mapping method with mutual conversion between Electric Application system private data model and the common information model CIM model; For those in the IEC61970/61968 standard, do not define as yet but information that practical application needs; The user can carry out model extension through the data model storage unit;, after the model mapping is accomplished, can directly derive the CIM/XML model file and supply the third party to use.
Description of drawings
Fig. 1 is that the privately owned model of application system provided by the invention is to CIM model mapping organization chart.
Fig. 2 is data pattern file flow path switch figure provided by the invention.
Embodiment
Do further to specify below in conjunction with the accompanying drawing specific embodiments of the invention.
The present invention adopts the normal data model of common information model CIM as the inter-system data exchange; From the private data model XML file of application system, parse information data, convert the model data file that meets CIM semanteme and syntactic structure according to mapping ruler into.The present invention is based on a kind of mapped system that this adopts, its structural drawing is as shown in Figure 1, main include file parsing module, map unit and data model storage unit, and wherein the document analysis module is used to realize the extraction of file data information; Map unit allows the user according to self system's different application and allocation models mapping ruler and realize the conversion between system's private data model and the common information model CIM through mapping ruler; The data model storage unit is mainly used in storage, manages, safeguards common model information.Concrete:
(1) document analysis module
The document analysis module is the source of whole mapping method input information, accomplishes the parsing and the extraction of application system information, for mapping ruler provides converting objects.The document analysis module is resolved the XML file that imports into; For improving the analyzing efficiency of big file; The characteristics of the existing XML document parser of analysis-by-synthesis adopt DOM (Document Object Mode) to extract data message with SAX (Simple API for XML) the mutually nested mode of resolver, and SAX is positioned at the analytical algorithm skin; Be used for all data designated information of sequential search XML file, trigger corresponding data-switching service; DOM is positioned at the analytical algorithm internal layer, is used for the corresponding data item of certain specify labels of stochastic searching, obtains data message and carries out stores processor.
(2) map unit
Map unit is the core of whole conversion method, accomplishes the mutual conversion of the privately owned model of application system to the CIM model, it provide mapping ruler configuration, read, store and function such as parsing.Map unit comprises mapping ruler storehouse, configuration tool and modular converter.Wherein configuration tool is mainly set up model mapping rule to configuration between privately owned model and the CIM model, forms the model mapping rule file; The privately owned model data information that modular converter combination mapping ruler realization document analysis module parses goes out and the mutual conversion of CIM database information; The mapping ruler storehouse is used to store user configured map information and attended operations such as inquiry, modification is provided.
Map unit is set up the model mapping rule file as the main component units of realizing shining upon between privately owned model and the CIM model, and the step of its foundation mainly comprises: 1. set up the whole network CIM model bank; 2. delete irrelevant model according to the application system demand, it is redundant to reduce model, and the CIM model is minimized; 3. in configuration tool, import application system model file and CIM model file, the configuration mapping ruler is realized the mapping between application system model and the CIM model.Map unit receives document analysis information, obtains pre-configured model mapping rule through the query mappings rule base, and modular converter converts the CIM model information of standard into and imports the CIM model repository according to the model information of mapping ruler with appointment.Wherein configuration tool shows application system model information and CIM model information with tree structure respectively; The user can adopt the manual mode that pulls to set up the mapping ruler between privately owned model of said application system and the CIM model according to the corresponding relation between the model information, and the map information of formation imports the mapping ruler library storage.
(3) data model storage unit
The data model memory module comprise model storage, manage, browse, import, function such as derivation, its nucleus module is a CIM relevant database that is used to store common model information.
Data model storage unit the supply a model importing of description document, the operations such as derivation, data management and maintenance of CIM/XML file, wherein the importing of model description file is promptly carried out dissection process to the model description file and is inserted in the database the model data that obtains is corresponding; The derivation of CIM/XML file be one according to all data messages of CIM data model structure ergodic data storehouse; Be assembled into the CIM object and be given to " XML generator program "; The process that the CIM/XML instance document of generation standard supplies associated component/service to call has realized generating the master pattern file from CIM relational database extracted data; Browse unit provides browsing of CIM model and retouching operation, and the user not only can check model information in browser interface, can also make amendment to model information, attended operation such as renewal.
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing and practical implementation method that the present invention is done further detailed description below.
Fig. 1 is that the privately owned model of application system shines upon organization chart to the CIM model, has showed the main modular unit that the model mapping method is comprised, and comprises document analysis module and map unit, data model storage unit etc.The user can be in map unit through browse, corresponding relation between inquiring user data model and the CIM model, adopt to pull, select or mode such as manual typing is set up the mapping ruler of two kinds of models, form the model mapping rule file; The document analysis module reads, verification and parsing are obtained model data from the model file of application system; Map unit stress model mapping rule file also converts model data into the CIM model data and deposits in the CIM database through the mapping algorithm program; Adopt the data message in the file export function traversal CIM relational database of data model storage unit, the CIM/XML instance document that generates standard according to the resource description framework file is for associated component/service call.
The privately owned model of application system that the present invention provides according to said system and the mapping method of CIM model; Process flow diagram is as shown in Figure 2; The practical implementation method is: in the configuration tool of map unit, import said application system model file and CIM model file; To demonstrate application system model and CIM model with tree structure in the configuration interface, the user can set up the mapping relations between privately owned model of said application system and the CIM model; Simultaneously in the document analysis module; After said privately owned model file reads from application system database at first verification its whether meet its corresponding XML Schema standard; If satisfying verification then utilizes analytical algorithm that said private data model file information data is extracted, otherwise to the error message of application system back-checking; The information data of obtaining is before modular converter shines upon storage; The mapping ruler storehouse need judge whether to have loaded mapping ruler; If load; Modular converter then converts the information data of obtaining into the CIM model data one by one according to mapping ruler and deposits in the CIM relational database table, requires to reload mapping ruler otherwise then return information.
Should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although the present invention has been carried out detailed explanation with reference to the foregoing description; Under the those of ordinary skill in field be to be understood that: still can specific embodiments of the invention make amendment or be equal to replacement; And do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. a system data model is characterized in that to the mapping method of CIM model said mapping method comprises the steps:
(1) allocation models mapping ruler and read the model file of application system;
(2) model file to said application system carries out verification, and the qualified document analysis algorithm that then calls of verification is resolved, and obtains all information datas in the model file;
(3) the mapping ruler storehouse judges whether to load said model mapping rule file; If load and then carry out next step; Otherwise set up the mapping ruler of said application system private data model and CIM model at the mapping block configuration interface;
(4) map unit is the CIM model data and deposits in the form of CIM relational database application system private information data-switching according to said mapping ruler;
(5) data message in the said CIM relational database of traversal is organized data according to resource description framework, derives the CIM/XML file of standard, for other assemblies or service call.
2. mapping method as claimed in claim 1; It is characterized in that; Step (1) user sets up the mapping ruler between said application system private data model and the CIM model according to the corresponding relation between said application system private data model and the CIM model in configuration tool.
3. mapping method as claimed in claim 1 is characterized in that, the step of setting up model mapping rule comprises:
1. set up the whole network CIM model bank;
2. delete irrelevant model according to the application system demand, it is redundant to reduce model, and the CIM model is minimized;
3. in configuration tool, import application system model file and CIM model file, the configuration mapping ruler is realized the mapping between application system model and the CIM model.
4. mapping method as claimed in claim 1; It is characterized in that; The step of the verification of the said application system model file of step (2) is: whether the model file of judging application system meets its corresponding XML Schema standard; If then carry out step (3), otherwise high-ranking officers' error checking false information returns to application system.
5. a system data model is characterized in that to the mapped system of CIM model, and said mapped system comprises document analysis module, map unit and the data model storage unit that connects successively; Said document analysis module is used for said application system model file is resolved with the information extraction data; Said map unit is used to dispose and store the mapping ruler between said application system private data model and the common information model CIM, and realizes mutual conversion between the two; Said data model storage unit is used for storing, manages, safeguards common model information.
6. mapped system as claimed in claim 5 is characterized in that, the model file that said document analysis module is imported into said application system is resolved; Said document analysis module adopts the DOM mode mutually nested with the SAX resolver to extract data message; Said SAX resolver is used for all data designated information of sequential search XML file; Said DOM resolver is used for the corresponding data item of certain specify labels of stochastic searching, obtains data message and carries out stores processor.
7. mapped system as claimed in claim 5 is characterized in that said map unit comprises mapping ruler storehouse, configuration tool and modular converter; Said configuration tool is used to set up the mapping ruler between privately owned model of said application system and the CIM model; Said modular converter reads that stored mapping information realizes the conversion between privately owned model of said application system and the CIM model in the mapping ruler storehouse.
8. mapped system as claimed in claim 5 is characterized in that, said data model storage unit comprises and comprises CIM model bank, management tool and browser; Said CIM model bank is used to store common model information; Said management tool and said browser provide the feature operation of the importing of common model information/derive, browse, inquire about, revise, upgrade.
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| CN109710669B (en) * | 2018-12-05 | 2022-07-29 | 国网山东省电力公司青岛供电公司 | Method for improving accuracy of full power grid model data based on check rule base |
| CN109739915A (en) * | 2018-12-27 | 2019-05-10 | 中国电子科技集团公司第三十研究所 | A kind of cross-cutting Data sharing model construction method |
| CN109739915B (en) * | 2018-12-27 | 2021-04-13 | 中国电子科技集团公司第三十研究所 | Cross-domain shared data model construction method |
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