一种电网信息模型的三维重构与优化方法  

A 3Dreconstruction and optimization method for grid information model

作　　者：张帅[1] 张正鹏 刘树辉 赵国忱[1] 芦骁 ZHANG Shuai;ZHANG Zhengpeng;LIU Shuhui;ZHAO Guochen;LU Xiao(Laoning Technical University,Fuxin,Liaoning 123000,China;Xiangtan University,Xiangtan,Hunan 411105,China;LTD of Beijing Huake Tianying Technology Service,Beijing 102600,China)

机构地区：[1]辽宁工程技术大学,辽宁阜新123000 [2]湘潭大学,湖南湘潭411105 [3]北京华科天盈技术服务有限公司,北京102600

出　　处：《测绘科学》2022年第3期192-201,共10页Science of Surveying and Mapping

摘　　要：针对电网信息模型从参数化到可视化的重构过程中存在着模型分级表达丢失、模型冗余、属性非标准化入库等问题,提出了一种电网信息模型的三维重构与优化方法。通过数据解析、参数建模、模型组装、模型优化和属性入库将GIM模型转换成通用的标准三维模型文件FBX,较大程度上降低了模型的数据量,实现了GIM模型的重构与优化,增强了模型的实用性。基于3个变电站GIM数据的实验结果表明:该文提出的三维重构方法在重构过程中完整地保留了GIM原有的层级,同时具有模型建模精度可控、模型复用率较高、属性标准化入库等特点。经过优化,模型面片数减少了68%,模型复用率平均达到了85%以上,文件大小减少了1/3。In view of the problems existing in the reconstruction process of Grid Information Model(GIM)from parameterization to visualization,such as loss of model hierarchical expression,redundancy of model,and non-standardized entry of attributes,this paper proposes a three-dimensional reconstruction and optimization method of Grid Information Model.Through data analysis,parameter modeling,model assembly,model optimization and attribute entry,the GIM model is converted into a universal standard 3Dmodel file FBX,which greatly reduces the data volume of the model,realizes the reconstruction and optimization of the GIM model,and enhances the practicality of the model.The experimental results based on the GIM data of three substations show that the proposed 3Dreconstruction method completely retains the original GIM hierarchy in the reconstruction process,and has the characteristics of controllable modeling accuracy,high model reuse rate and standardized attribute storage.After optimization,the number of model facets is reduced by 68%,the model reuse rate is over 85%on average,and the file size is reduced by one third.

关 键 词：电网信息模型 变电站 三维重构 

分 类 号：P208[天文地球—地图制图学与地理信息工程]