基于无人机LiDAR的高压输电线路树障监测与分析OA
Monitoring and analysis of high-voltage transmission line tree barrier based on UAV-LiDAR
基于无人机LiDAR点云数据,利用LiDAR360软件对研究区域的点云数据进行点云平滑、重采样和去噪等预处理,随后采用克里金空间插值算法生成数字高程模型(DEM)和数字地表模型(DSM)并进行了精度检验,进而利用ArcGIS软件对DSM和DEM进行相减得到了冠层高度模型(Canopy Height Model,CHM),最后利用以焦点统计为主的一系列空间分析方法对CHM进行了单木树高和单木位置的提取.然后对研究区域内的高压输电线路沿线树木进行了排查,主要排查内容为树线之间的水平距离和垂直距离,将排查结果与高压输电线路树障隐患等级和高压输电线路安全距离标准进行对比,得到了相应的安全评估结果与树障位置.
Based on the unmanned aerial vehicle LiDAR point cloud data,the LiDAR360 software was used to pre-process the point cloud data in the study area,including point cloud smoothing,resampling and denoising.Then the Kriging spatial interpolation algorithm was used to generate the digital elevation model(DEM)and digital surface model(DSM),and accuracy testing was conducted.Subsequently,the ArcGIS software was used to subtract the DSM and DEM to obtain the canopy height model(CHM).Finally,a series of spatial analysis methods based on focus sta-tistics were used to extract the height and position of a single tree from CHM.A survey was conducted on the trees along the high-voltage transmission line in the study area,mainly focusing on the horizontal and vertical distances between the trees and line.The results of the survey were compared with the tree barrier hidden danger level and the safety distance standard for high-voltage transmission line,and corresponding safety assessment results and tree barrier positions were obtained.
吴太迎;殷圣云;黄丽娃
广西桂禹工程咨询有限公司,南宁 530023
动力与电气工程
LiDAR冠层高度模型树高提取树障监测高压输电线路
LiDARCHMtree height extractiontree barrier monitoringhigh-voltage transmission line
《广西水利水电》 2024 (002)
8-14 / 7
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