无人机LiDAR在输电线路平断面测绘中的应用  

The application of UAV LiDAR in transmission line flat section surveying and mapping

作　　者：黄玉林 刘龙飞 祖为国 谭金石 HUANG Yulin;LIU Longfei;ZU Weiguo;TAN Jinshi(China Energy Engineering Group Guangdong Electric Power Design Institute Co.,Ltd.,Guangzhou 510663,China;College of Surveying,Mapping and Remote Sensing Information,Guangdong Polytechnic of Industry and Commerce,Guangzhou 510510,China)

机构地区：[1]中国能源建设集团广东省电力设计研究院有限公司,广东广州510663 [2]广东工贸职业技术学院测绘遥感信息学院,广东广州510510

出　　处：《测绘通报》2024年第1期131-135,共5页Bulletin of Surveying and Mapping

摘　　要：传统输电线路平断面测绘方法工作量大、野外危险性高,难以测量植被覆盖区域地面点高程及交叉跨越导线。针对该问题,本文提出了将无人机LiDAR技术应用于输电线路平断面测绘的方法。首先分析了无人机LiDAR的原理及优势;然后对无人机LiDAR外业数据采集、激光点云滤波构建DEM、三维地物采集、断面提取及平断面快速成图等关键技术进行了深入研究。结果表明,该方法可以实现高精度、智能化地测绘平断面图,效率大大提高,为输电线路路径优化提供了技术支撑,具有巨大的经济和社会效益,值得推广与借鉴。This paper investigates the application of UAV LiDAR technology to the mapping of transmission line flat sections in view of the problems of large workload,high risk in the field,difficulty in measuring ground point elevations in vegetation-covered areas and difficulty in measuring cross-crossing conductors in traditional transmission line flat sections.Firstly,the principle and advantages of UAV LiDAR are analysed,and then key technologies such as UAV LiDAR field data acquisition,laser point cloud filtering to build DEM,3D feature acquisition,elevation information extraction and rapid mapping of flat sections are studied in depth.The results show that the method can achieve high accuracy and intelligent mapping of flat sections,with a two-fold increase in efficiency,and provide technical support for transmission line path optimisation.It has great economic and social benefits,and is worthy of application and reference.

关 键 词：无人机LiDAR 输电线路 平断面图 点云滤波 三维采集 断面提取 

分 类 号：P23[天文地球—摄影测量与遥感]