组合激光雷达系统在输电线路测量中的应用

Application of combined laser radar system in transmission line measurement

针对传统人工测量输电线路方法精度与效率较低的问题,提出一种机载激光雷达系统与地面激光扫描仪协同工作的组合激光雷达系统进行输电线路测量。机载激光雷达系统负责输电线路走廊点云数据的采集,地面激光扫描仪负责电塔高精度点云数据的采集,通过计算两个坐标系之间的旋转矩阵与平移向量,实现两组点云数据的融合。在张北500 kV高压输电线路工程中进行应用试验,试验结果表明,该系统可以高效、准确地实现输电线路走廊中危险点的检测以及电力塔的倾斜度与变形监测,具有一定的实用价值。

Aiming at the problem of low accuracy and low efficiency of traditional manual measurement methods of transmission line, a combined laser radar system in which airborne LiDAR system works collaboratively with terrestrial laser scanner is proposed to measure the transmission line. The airborne LiDAR system is responsible for the acquisition of point cloud data in the transmission line corridor and the terrestrial laser scanner is responsible for the acquisition of high precision point cloud data of the electric tower. By calculating the rotation matrix and translation vector between the two coordinate systems, two sets of point clouds can be merged. The application test is carried out in Zhangbei 500 kV high-voltage transmission line project, the experimental results show that the system could effectively and accurately detect the dangerous points in the transmission line corridor and monitor the inclination and deformation of the electric tower, which has a certain practical value.