机载激光雷达技术在矿山大比例尺地形图测绘中的应用  

Application of airborne LiDAR technology in large-scale topographic mapping of mines

作　　者：张金荣 ZHANG Jin-rong(Brigade of North China Geological Exploration Bureau,Chengde 067000,China)

机构地区：[1]华北地质勘查局五一四地质大队,河北承德067000

出　　处：《世界有色金属》2024年第20期153-155,共3页World Nonferrous Metals

摘　　要：传统的无人机搭载可见光摄像机进行航空摄影时,受地表植被覆盖程度高、地形起伏大等因素影响,仅能获取地表高度(如DSM),而不能获取地表高度(DEM),不能满足大比例尺地形测绘需求。本项目拟采用无人机搭载Lidar,实现对地面植被的直接测量,并对点云进行分级,建立DEM,实现大范围地形测绘,以解决采动井田落差大、植被茂密等条件下,常规测量速度较慢,且可见光测量精度不能满足需求的技术难点。Traditional drones equipped with visible light cameras for aerial photography are affected by factors such as high surface vegetation coverage and large terrain undulations,and can only obtain surface height(such as DSM),but cannot obtain surface height(DEM),which cannot meet the needs of large-scale terrain mapping.This project plans to use drones equipped with Lidar to directly measure ground vegetation,classify point clouds,establish DEM,and achieve large-scale terrain mapping to solve the technical difficulties of slow conventional measurement speed and insufficient visible light measurement accuracy under conditions such as large drop and dense vegetation in mining fields.

关 键 词：矿山测量 激光雷达 大比例尺 地形图测量 无人机航测 

分 类 号：TD171[矿业工程—矿山地质测量]