电力系统自动化2017，Vol.41Issue(11)：99-105,7.
输配电地理信息系统平台图形浏览服务的实现
Implementation of Graphical Browsing Service of Geographic Information System Platform in Transmission and Distribution Network
摘要
Abstract
Two main ways of creating a grid geographic information system (GIS) are described, i.e., the instant query method based on structured query language (SQL) database and the static publishing method based on slicing.The performance bottleneck and function limitations of the two ways in grid application are compared.The memory database oriented to device object is designed and developed.By using the partition and the paging storage technologies, the province wide graphic and pattern data on "transmission, substation, distribution and low voltage" are cached in the GIS application server.The spatial index is created, and incrementally updated with the network version iteration for highly efficient caching and indexing of a large-scale power grid model.Then the implementation method of graphics browser subsystem of provincial centralized power grid GIS platform using the technology is described.The GIS application server provides vector graphics WebService, and the B/S client carries out dynamic graphics rendering.Finally, in a pressure test of an actual online system, each server of the system developed processes more than 1 000 times of dynamic graphics browsing services per second in the tens of millions of grid equipment scale, and each service processing time is less than 0.1 s.关键词
地理信息系统/内存对象数据库/矢量图形传输/客户端/动态图形渲染Key words
geographic information system(GIS)/memory object database/vector graphic transmission/client/dynamic graphic rendering引用本文复制引用
李飞,黄琦,纪元,吴文传..输配电地理信息系统平台图形浏览服务的实现[J].电力系统自动化,2017,41(11):99-105,7.基金项目
贵州省重大科技专项资助项目(K-GZ2013-235).This work is supported by Special Fund of Key Science and Technology Projects of Guizhou Province (No.K-GZ2013-235). （K-GZ2013-235）
