聚合算法在电力GIS中的应用

Application of Clustering Algorithm in the Power GIS

随着电力信息化建设不断推进,涉及的各类电力设备越来越多,且设备呈现明显的地域分布的特点。文章在研究了WebGIS在展现大量电力资产节点数据时,渲染客户端加载速度过慢等技术瓶颈的基础上,分析了2类通用聚合算法特点及与GIS的关系,依据划分算法思想,设计并实现了空间点聚合在GIS中的展现方法,提高渲染效率。测试证明,该方法可以解决大量数据展现时加载速度过慢的问题,在电力系统建设中有广阔的应用前景。

With the continued progress of the power informatization, more and more kinds of the electrical equipments are involved. And they obviously present the characteristic of geographical distribution. When this paper studies the WebGIS technology, it shows a lot of the power assets node data points, on the base of technical bottlenecks which client-side loading rate is too slow. It analyses two common characteristic of clustering algorithms and the relationship of them and the GIS. Based on the idea of Partition Algorithm, it implements the presentation of geo-spatial point cluster in GIS and improves rendering efficiency. Testing shows that this method can solve the problem which caused loading rate slowly by the large amount of data showing , so it has broad application prospects in the construction of power system.