| The Power Geography Information System is a kind of synthetic science and interdisciplinary technology on basis of the power and computer. It makes use of a Geography Information System Technology to realize the power network’s normal activities, such as safe running, maintenance, management and operation. Most of the traditional Power Geography Information System adopts low-class distributed structure which is based on the share of files, so the cost is very high and the operation is very complicated.For this purpose, the thesis is based on the application in the power distributing network of the GIS and the development of Power Distribution Network Service Information System. The disadvantages of the classic management system are analyzed in the thesis, the advantage are elaborated of utilizing GIS to manage the power distributing network, and several GIS platforms are compared as well as development methods. The thesis establishes the Power Distribution Network geography datamodel which is suitable for Power Distribution Network topology analysis and completes the Power Distribution Network map, and then has solved the Power Distribution Data fragmentation problem, also has realized the attribute data and the spatial data unified management.This thesis addresses a solution program of Power Geography Information System based on the Web technology. This program adopts the theory of three-tiered structure to frame the system and uses Oracle Spatioal to restore information data. It focuses on the method of modeling spatial data of Power Geography Information System. In the end, the WebGis system of Power Supplying Company in Yi Feng County is developed by utilizing the software product and made into circulation. The practice result indicates that the Power Geography Information System based on Web technology has the advantages of simple operation, reducing cost on a large scale, and making full use of system resources. Therefore, it obtains high praise of relative sectors. |
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