三维扫描仪在河道勘测中的对比分析

Contrastive Analysis of Three-Dimensional Scanner in River Survey

采用地面三维激光扫描,采集反射体的三维坐标数据进行点云数据处理和数学建模而成图。选取中海达HS1200和TrimbleSX10两种三维激光扫描仪器进行试验研究,误差统计分析表明:前者扫面点数据量较大,可升级为船载模式,CAD成图快捷;TimbleSX10扫描点的数据量小,操作简洁,但CAD成图有待提高。两者在山坡陡崖、崩岸险情等监测具有很大的优势,但非沙滩、裸地等区域有待进一步关注与试验。

Ground 3D laser scanning was used to collect 3D coordinate data of the reflectorperform point cloud data processing and mathematical modeling. Two kinds of three-dimensional laser scanning instruments, namely Haida HS1200 and TrimbleSX10, were selected for experimental research. The error statistical analysis showed that the former had a large amount of scanning points and could be upgraded to shipborne mode. CAD drawing was fast;TimbleSX10 scanning point data volume was small, and its operation was concise;but CAD mapping needed to be improved. The two have great advantages in monitoring hillside cliffs and bank collapse, but non-sand beaches, bare land and other areas need further attention and experimentation.