一种基于地基三维激光点云的电力线走廊危险区域确定方法  

A method for determining the danger zone of power line corridor based on ground-based laser point cloud

作　　者：杨森 花向红[1,2] 李丞 叶小川 崔淇 赵不钒 侯宇 Yang Sen;Hua Xianghong;Li Cheng;Ye Xiaochuan;Cui Qi;Zhao Bufan;Hou Yu(School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China;Disaster Monitoring and Prevention Research Center of Wuhan University,Wuhan 430079,China;School of Safety Science and Emergency Management,Wuhan University of Technology,Wuhan 430070,China;Chinese People′s Armed Police Force Guizhou Provincial Corps,Guiyang 550000,China)

机构地区：[1]武汉大学测绘学院,武汉430079 [2]武汉大学灾害监测与防治研究中心,武汉430079 [3]武汉理工大学安全科学与应急管理学院,武汉430070 [4]中国人民武装警察部队贵州省总队,贵阳550000

出　　处：《工程勘察》2025年第5期55-60,66,共7页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金面上项目(42271452,42201457)。

摘　　要：随着我国经济的快速发展,对电力基础设置的安全运行维护工作提出了更高的要求,对电力线进行三维重建及电力线范围内的危险点检测和保护区绘制是电力部门的一项任务。针对传统的电力线人工巡检测量危险系数高、效率低等问题,本文提出一种基于地基三维激光点云的电力线走廊危险区域确定方法,首先根据高程阈值分离电力线点与地物点;然后利用K近邻算法剔除电力线点中的孤立点,根据二维投影得到单档的电力线;最后利用最近邻算法求出地物点到电力线点的三维最近距离和二维最近距离,确定电力线走廊区域的危险点和保护区。工程应用表明,本文方法效率较高,危险点检测结果精度高于手动测量结果。With the rapid development of our country′s economy,higher requirements are put forward for the safe operation and maintenance of power infrastructure.Three-dimensional reconstruction of power lines,detection of dangerous points within the range of power lines and drawing of protection areas are tasks of the power department.Aiming at the problems of higher risk and low efficiency of traditional manual patrol inspection of power lines,we propose a method for determining the danger area of power line corridor based on ground-based 3D laser point cloud,which first separates power line points and feature points according to the elevation threshold,and then uses K nearest neighbor algorithm to eliminate the isolated points in the power line points,and obtains a single-level power line according to the two-dimensional projection.Finally,we use nearest neighbor algorithm to obtain the three-dimensional shortest distance and two-dimensional shortest distance from the object points to the power line points to determine the dangerous points and protection area in the power line corridor area.The practical engineering application shows that our method is more efficient,and the dangerous point detection results is more accurate than the manual measurement results.

关 键 词：地基激光雷达 点云数据 电力线巡检 危险点检测 保护区确定 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]