基于GPS、三维激光扫描技术的堤坝扫描测量

Based on GPS, three Uygur laser scan technology dike scanning survey

本文介绍了用三维激光扫描技术对堤坝进行扫描测量工作。针对堤坝呈线性分布,且长度较长,扫描角度较差的特点,导致难于寻找公共点实现自动拼接的难题,提出用GPS沿坝体方向布设基准点,再用全站仪测量坝体上标靶点坐标的方法来完成整个堤坝的扫描工作。从而实现把多次的扫描数据统一到同一个坐标系下的目的,成功避开被测堤坝难于寻找同名点实现自动拼接的难题。

This paper introduces how to measure the dam using 3D laser scanner. It is difficult to align automatic with same points in view of linear distribution, long distance and bad scan angle of dam. This paper puts forward this method that builds reference point along dam direction and then measure target points coordinate with electronic total station. Thereby many scan data were integrated to the same coordinate system, and avoid searching the same points to align automatic.