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：刘和平 LIU Heping(Geological Survey Department,Energy Division,Lu'an Chemical Group Co.,Ltd.,Changzhi 046000,Shanxi,China)

机构地区：[1]潞安化工集团有限公司能源事业部地测部,山西长治046000

出　　处：《能源与节能》2024年第8期264-267,271,共5页Energy and Energy Conservation

摘　　要：针对常规无人机挂载可见光相机航测,通过空中三角测量得到地面三维坐标信息的生成过程,受制于地面植被覆盖密度高、地形起伏大,可见光航测相机往往只能得到植被表面的高程数据,即获取到DSM(Digital Surface Model,数字表面模型)数据,无法获得地面高程数据,即DEM(Digital Elevation Model,数字高程模型)数据,无法满足大比例尺地形图生成的需要。利用无人机挂载激光雷达设备,激光雷达可以穿透地表植被,直接测量到真实地表,将点云分类后制作DEM,用于大比例尺地形图生成中,能够解决矿区井田落差大、植被茂密情况下,传统测量速度慢、可见光航测技术精度无法满足要求的技术难题。For conventional unmanned aerial vehicles mounted with visible light cameras for aerial surveying,the process of generating ground three-dimensional coordinate information through aerial triangulation is limited by the high vegetation coverage density and large terrain undulations on the ground.Visible light aerial surveying cameras often can only obtain elevation data of vegetation surfaces,that is,DSM(Digital Surface Model)data,and cannot obtain ground elevation data,that is,DEM(Digital Elevation Model)data,which cannot meet the needs of generating large-scale topographic maps.By using drones to mount LiDAR equipment,LiDAR can penetrate surface vegetation and directly measure the real surface.After classifying point clouds,DEM can be produced for large-scale topographic map generation,which can solve the technical problems of slow measurement speed and insufficient accuracy of visible light aerial surveying technology in mining areas with large drop and dense vegetation.

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：TD17[矿业工程—矿山地质测量]