利用背负式移动激光扫描系统测绘地下空间地形图

Mapping of Underground Space by Using the Piggyback Mobile Laser Scanning System

针对传统测量地下空间作业方法效率低等问题,选择苏州工业园区测绘地理信息有限公司地下停车场为试验对象,利用背负式移动激光扫描系统获取原始扫描数据,应用Indoor NavPrep,Infinity以及Aotumatic Processing软件对原始扫描数据进行预处理,使用Cyclone软件对点云模型制作横切切片图,在CAD软件环境下绘制1∶500地形图,并进行点云精度质量分析和作业效率对比.研究结果表明,利用背负式移动激光扫描系统满足1∶500地形图测量精度要求,外业作业效率远高于地面三维激光扫描仪与全站仪.

In view of the low efficiency of traditional measurement of underground space,the underground parking lot of Suzhou Industrial Park Surveying,Mapping and Geo-information Co.,Ltd. was selected as the test object.The original scanning data was acquired by the piggyback mobile laser scanning system,and the original Indoor NavPrep,Infinity and Aotumatic Processing software were applied to the original.The scanned data was preprocessed,and the cross-cutting slice was made by using the Cyclone software to the point cloud model.The 1∶500 topographic map was drawn in the CAD software environment and the point cloud precision quality analysis and work efficiency comparison were performed.The research results show that the application of the piggyback mobile laser scanning system meets the measurement accuracy requirements of 1∶500 topographic map,and the field operation efficiency is more efficient than that of the ground 3 Dlaser scanner and total station.