现代雷达2025，Vol.47Issue(12)：71-80,10.DOI:10.16592/j.cnki.1004-7859.2025172
激光雷达点云融合下电力线安全距离远程监测
Remote Monitoring of Power Line Safety Distance under Lidar Point Cloud Fusion
摘要
Abstract
The power distribution network's overhead lines exhibit a slender structure on the millimeter scale,resulting in sparse point clouds during long-distance scanning,which makes it difficult to calculate the distances between power line point clouds.To address this issue,a remote monitoring method for power line safe distances using lidar point cloud fusion is proposed in this pa-per.First,power line point cloud data is captured and fused.Then,multi-lidar calibrated and fused point cloud features are coarsely extracted.After that,a KD-tree is constructed to calculate the distances between the point clouds,enabling precise ex-traction via mobile laser point fitting.That allows for the accurate extraction of power line positional information from complex point cloud data.Finally,the power line point cloud data is fitted according to the sag equation,and the vertical distances from each point on the power line to the center point of the bucket truck are obtained.Thereby,the remote automatic monitoring of the safe distance for distribution network power lines is accomplished.Experimental results demonstrate that the proposed method can accu-rately and completely extract the power line point cloud data,with the maximum fitting residuals for the shield wire and power line point clouds being 0.119 m and 0.224 m respectively.An alarm is triggered at a distance of 4.95 m,with a response time of 0.45 s and a monitoring coverage rate of 97.5％,which effectively reduces operational risks.关键词
激光雷达/电力线/安全距离监测/高程阈值/移动激光点拟合/铅垂线Key words
lidar/power lines/safety distance monitoring/elevation threshold/moving laser point fitting/plumb line分类
信息技术与安全科学引用本文复制引用
郑鹏,韩鹏程..激光雷达点云融合下电力线安全距离远程监测[J].现代雷达,2025,47(12):71-80,10.基金项目
河南省重点研发与推广专项资助项目(232102241041) （232102241041）
