基于Geodatabase数据模型和Case工具设计实现配电GIS数据库

Design and realization of distribution network databased based on geodatabase and Case tools

传统的地理信息系统数据模型难以表达非结构化数据和GIS中具有复杂结构的数据,也不能表达继承、聚合等在GIS中广泛使用的关系。文章概述了Geodatabase模型的结构和特点,并针对配电网数据结构的特点,在Geodatabase模型的基础上,利用UML建模语言和ArcGIS提供的Case工具,设计并实现了配电GIS数据库。这种数据模型和设计方法比传统方法直观、简单且易于修改,对配电网的描述更贴切,利于数据库设计的优化,是设计空间数据库的一种较好的方法。

It is difficult to express unstructured data and GIS data with a complex structure in traditional geographic information system data model, which also can not express relationship in GIS, for example inheritance, polymerization. This paper summarizes the structure and characters of the geodatabase model, designs and realizes the database for distribution network successfully using the modeling language UML and Case tools which is provided by ArcGIS. In view of the characteristics of distribution network data structure, and based on the Geodatabase model, it provides a feasible method in distribution network database designing. This data model and designing method intuitional, simple and easy to modify compared with traditional methods. This method is a better one to design spatial database because the description for distribution network is more appropriate.