无人机机载激光雷达技术在电力线路工程中的应用分析  

Application analysis of UAV airborne Lidar technology in power line engineering

作　　者：陈西强 CHEN Xiqiang

机构地区：[1]中国电建集团福建省电力勘测设计院有限公司,福建福州350003

出　　处：《福建建设科技》2024年第3期96-98,103,共4页Fujian Construction Science & Technology

摘　　要：随着无人机机载激光雷达小型化、轻量化的出现,无人机机载激光雷达技术能够快速地获取电力走廊内的三维空间信息数据,通过点云数据滤波和分类,能够为电力走廊设计提供高精度的平断面数据、风偏点和危险点数据,具有效率高、精度好、现实性强等显著特点。通过工程实践表明,经过合理的设计航高、重叠度,其获取的激光点云数据能够满足电力线路施工图阶段的平断面、房屋分布、风偏点及危险点测量技术要求,同时在空间点云密度大于15点/m^(3)的条件下,能够满足线路交叉跨越测量的精度要求。但在山区植被茂密区域,其获取的激光点云数据无法直接满足规程规范对塔基断面高程误差不应大于0.1m的技术要求。With the emergence of miniaturization and lightweight of airborne lidar of unmanned aerial vehicles,the technology of airborne lidar of unmanned aerial vehicles can quickly acquire three-dimensional spatial information data in the power corridor.Through point cloud data filtering and classification,it can provide high-precision plane section data,wind deflection point and danger point data for the design of power corridor,which has significant characteristics such as high efficiency,good precision and strong reality.The engineering practice shows that after reasonable design navigation height and overlap degree,the obtained laser point cloud data can meet the technical requirements of the horizontal section,house distribution,wind deflection point and danger point measurement in the construction drawing stage of power lines,and can meet the accuracy requirements of line cross-crossing measurement under the condition that the point cloud density is greater than 15 points/m^(3).But in densely wooded areas of the mountains,the laser point cloud data obtained cannot directly meet the technical requirements that the elevation error of the base section should not be greater than 0.1m.

关 键 词：无人机 机载激光雷达 平断面 交叉跨越 塔基断面 

分 类 号：TM75[电气工程—电力系统及自动化] TN958.98[电子电信—信号与信息处理]