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Method for mapping and modeling from CIM (Common Information Model) to relational database

A database and relational technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems affecting problem solutions, contradictions between object-oriented models and relational database systems, etc.

Inactive Publication Date: 2014-04-30
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when implementing the mapping from CIM to relational database, two issues should be considered: on the one hand, the contradiction between the object-oriented model and relational database system; on the other hand, the specific situation of the actual power system will inevitably affect the problem s solution

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  • Method for mapping and modeling from CIM (Common Information Model) to relational database
  • Method for mapping and modeling from CIM (Common Information Model) to relational database
  • Method for mapping and modeling from CIM (Common Information Model) to relational database

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Embodiment Construction

[0021] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] see Figure 1 to Figure 4 , the present invention provides a method for mapping a CIM model to a relational database, including the realization of the inheritance relationship, the realization of the aggregation relationship and the realization of the association relationship.

[0023] The realization of the inheritance relationship is to first define the base class attribute inherited by the subclass as an object type, put it into the table of the subclass, and then map the specific subclass into a single database table, so that each specific subclass maps Each table contains its own attributes and attributes inherited from the accumulation. And the abstract inherited base class in the implementation of the inheritance relationship does not participate in the mapping.

[0024] Such as figure 1 , the subclass AcLineSegment not only includes i...

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Abstract

The invention provides a method for mapping and modeling from a CIM (Common Information Model) to a relational database; according to the method, the combination of the object-oriented model of CIM and the relational database is achieved. Three relations of the classes are generalizing, associating and containing. The relations may be zero / one-to-one, one-to-many, and many-to-many. The method can effectively and completely express the CIM by the relational database.

Description

technical field [0001] The invention relates to the technical field of CIM development, in particular to a method for mapping a CIM model to a relational database. Background technique [0002] CIM (Common information model, public information model) is the core part of IEC61970, which provides a comprehensive logical view of EMS information; defines the public class, attribute and relationship between the main objects of the power industry, used in power engineering, planning , management, operation and financial applications development and integration. For convenience, CIM is divided into 13 class packages, more than 290 classes. Including: domain package, core package, wire package, measurement package, topology package, load package, storage and loss package, protection package, power generation package, financial package, forecast package and energy arrangement package, SCADA package, etc. Each EMS application can have its own information description, but as long as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/44G06F17/00
Inventor 卢京祥徐延波王晓梅滕春利王家武刘祥波罗迅刘长锋封常福
Owner STATE GRID CORP OF CHINA