摘要
线路勘测为电力设计人员提供基础数据。传统工程测量法、摄影测量法、有人机载激光雷达等线路勘测方法均存在局限性,不能满足当前线路勘测设计要求。无人机激光雷达机动灵活、成本低、操作便捷,激光点云具有穿透性,能同时获取激光点云和影像数据,可以很好地解决线路勘测中的不足。对无人机激光雷达在线路勘测中的适用性进行研究,首先阐述基本原理和技术路线,然后对无人机仿地飞行、架空导线交叉跨越测量及顾及地形的布料模拟滤波等关键技术进行研究,最后通过试验进行适应性研究与分析。结果表明,无人机激光雷达可低成本、高效地获取带状区域的激光与影像数据,穿透到地面的点云密度达1~3点/m2,导线高程测量精度±0.057 m,点云平面精度±0.12 m,高程精度0.07~0.23 m,均能满足线路勘测精度要求,相对于传统勘测方法具有较好的技术提升,应用推广价值较高。
Line surveys are crucial for power designers,yet traditional survey methods,including engineering surveying,photogrammetry,and manned airborne lidar,often fall short of current requirements.UAV LiDAR is flexible,low-cost,convenient to operate,and the laser point cloud has penetrability,which can obtain laser point cloud and image data at the same time,which can well solve the shortcomings in line survey.This paper studies the applicability of UAV LiDAR in line surveying.First,the basic principles and technical routes are described.Then,key technologies such as UAV ground-flight,overhead wire crossing measurement,and terrain-considering cloth simulation filtering are carried out.Research,and finally through experiments to carry out adaptive research and analysis.The results show that the UAV lidar can obtain laser and image data in the strip area with low cost and high efficiency,the point cloud density penetrating to the ground is 1~3points/m^(2),the wire elevation measurement accuracy is±0.057m,and the point cloud plane is The accuracy is±0.12m,and the elevation accuracy is 0.07~0.23m,all of which can meet the requirements of line survey accuracy.Compared to traditional methods,UAV LiDAR represents a technological leap forward,offering significant application and promotion potential.
作者
谭金石
祖为国
刘波
郑滨雁
高士虎
Tan Jinshi;Zu Weiguo;Liu Bo;Zheng Binyan;Gao Shihu(Guangdong Polytechnic of Industry and Commerce,College of Surveying,Mapping and Remote Sensing Information,Guangzhou510510,Guangdong,China;School of Surveying and Geoinformation Engineering,Nanchang330013,Jiangxi,China;Guangdong Nanhai Electric Power Design Institute Engineering Co.,Ltd.,Foshan528200,Guangdong,China)
出处
《应用激光》
CSCD
北大核心
2024年第3期150-161,共12页
Applied Laser
基金
国家自然科学基金项目(42161064)
广东省普通高校重点科研项目(2022DZZX4072)
双高专业群建设一般委托专项(2021-ZX-12)
国家虚拟仿真实训基地建设校级科研专项(2022-jd-01)。
