Method for managing metadata of virtual data warehouse of electric power information system group

A technology of power information and virtual data, applied in the direction of electrical digital data processing, data processing applications, special data processing applications, etc., can solve the problem that models, services and data interfaces cannot be summarized and unified, so as to save integration work and costs, and reduce costs. Effects of hardware and software requirements

Active Publication Date: 2011-05-25
NR ELECTRIC CO LTD +1
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Problems solved by technology

[0009] The object of the present invention is: in order to solve the problem that the existing models, services and data interfaces cannot be summarized and unified when multiple databases are integrated in the existing electric power information system group, a metadata for constructing a virtual data warehouse in the electric power information system group is proposed The managemen

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  • Method for managing metadata of virtual data warehouse of electric power information system group
  • Method for managing metadata of virtual data warehouse of electric power information system group
  • Method for managing metadata of virtual data warehouse of electric power information system group

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Embodiment Construction

[0044] In order to complete the integration of heterogeneous database systems of power information systems conveniently, quickly and at low cost, the present invention provides a metadata management system of a virtual data warehouse composed of power information system groups, which includes the following contents: (1) public power objects Information model management (2) Mapping relationship management of public data services and private multi-dimensional data services of heterogeneous databases (3) Public data services and open interface function libraries.

[0045] 1. Public power object information model management

[0046] The virtual warehouse metadata system management manages the public power object information model through a method of binary groups (public object-public object type). For each type of object, the metadata management system will assign a container type It is used to load the object and is associated with a public object type, which manages the public ...

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Abstract

The invention discloses a method for managing metadata of a virtual data warehouse of an electric power information system group. The method comprises the following steps of: a) managing an object data service of a public electric power information system, and managing the public data service attribute provided by a public object for query; b) managing the mapping relationship between a public data service and a private multi-dimension data service of each heterogeneous database, wherein the established mapping relationship of the public data service and the private multi-dimension data service of each heterogeneous database is finished through the incidence relation from the public data service attribute to each heterogeneous source table column; and c) managing a public data service interface and a maintenance interface, and managing a set of open standard interface (API) function library for providing external data services. The public data service interface comprises a unified retrieve definition interface and a unified data query service interface. By using the method, private data services provided by each power information system are integrated, and the public data services provided for a third party are summarized. The method can be conveniently applied to integration work of the electric power information group.

Description

technical field [0001] The present invention relates to database integration technology for electric power information systems, and particularly relates to a metadata management method for constructing a virtual data warehouse in a power information system group. The virtual data warehouse metadata management system constructed by this method integrates each electric power information system The private data services provided are integrated and summarized into public data services open to third parties, so as to provide a unified public data service platform for power companies. Background technique [0002] The information system of the new generation of power enterprises needs to consider the requirements of safe operation and commercial operation in the power market environment. The basis of its application is to construct a public data platform, which integrates real-time dispatching system, electric energy metering system, relay protection, safety automatic device and i...

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Application Information

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IPC IPC(8): G06F17/50G06Q50/00G06Q50/06
Inventor 解凯曾坚永金浩卢建刚周荃刘洋潘玉春徐展强钱锋
Owner NR ELECTRIC CO LTD
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