统一时空电网数据模型与访问技术

Uniform Spatio-Temporal Power-Grid Data Model and Access Technology

在电网的地理信息系统发展过程中,存在着多种不同的文件或空间数据库格式,也产生了大量的电网时空数据.为解决数据集中或各个系统间数据交互时,面临的异构数据问题以及时空数据应用问题,特提出统一时空电网数据模型与访问技术.本文从实际应用出发,利用元数据思想及软件插件模式,从数据及访问层面解决了异构数据和时态数据的使用.通过应用证明,采用统一空间数据模型与访问技术方式,能够有效地减少数据准备、系统开发的工作量,并且可以整合利用不同数据源各自的优点.

In the development of power-grid GIS, there are varieties of files and many types of spatial database formats, and also a large number of grid spatio-temporal data are produced. In order to solve the problem of heterogeneous data and the application of spatio-temporal data in data exchange between different systems, data model and access technology of unified spatio-temporal power grid are proposed. Based on practical applications, this paper solves the use of heterogeneous data and temporal data from the data and access level by using the metadata concept and software plug-in model. It is proved by the application that the unified spatial data model and access technology can effectively reduce the workload of data preparation and system development, and can integrate the advantages of different data sources.