输配电地理信息系统平台图形浏览服务的实现

发布时间：2018-02-28 15:03

本文关键词： 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　出处：《电力系统自动化》2017年11期 　论文类型：期刊论文

【摘要】：首先介绍了电网地理信息系统(GIS)的两种主要实现方式,即基于结构化查询语言(SQL)数据库的即时查询方式和基于切片的静态发布方式,对比了两种方式在电网应用中的性能瓶颈和功能局限性。设计并开发了面向设备对象的内存数据库,采用了分区、分页存储技术,在GIS应用服务器内存中缓存了全省规模的"输变配低"电网的图模数据,建立空间索引,并随电网版本迭代进行增量更新,用于大规模电网模型的高效缓存和检索。其次,给出了使用该技术实现全省集中电网GIS平台图形浏览子系统的方法,GIS应用服务器提供矢量图形WebService服务,B/S客户端进行动态图形渲染。最后,在实际上线系统的压力测试中,所开发的系统在全省千万级电网设备规模下,每台服务器每秒处理超过1 000次动态图形浏览服务,每次服务处理时间小于0.1s。
[Abstract]:Firstly the paper introduces the Grid Geographic Information System (GIS) of the two main ways, namely, based on the structured query language (SQL) query database and instant Static Slicing Based on published methods, compares the two ways of performance bottleneck and function in grid application limitations. Memory database was designed and developed for the device object by using the partition, paging and storage technology in GIS application server memory cache the size of the transmission change with low grid pattern data, spatial index, and with the network version of iterative incremental updates, for efficient caching and retrieval model of large-scale power grid. Secondly, given the realization of the province's centralized power grid GIS platform graphical browsing method system using this technology, GIS application server provides vector graphics WebService services, B/S client dynamic graphics rendering. Finally, in the actual line In the pressure test of the system, the developed system has more than 1000 dynamic graphic browsing services per second on the scale of the province's tens of millions of power grids, and the processing time of each service is less than 0.1s..

【作者单位】：电子科技大学能源科学与工程学院;贵州电网有限责任公司信息中心;电力系统及发电设备控制和仿真国家重点实验室清华大学;
【基金】：贵州省重大科技专项资助项目(K-GZ2013-235)~~
【分类号】：P208;TM72

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