基于无人机LiDAR的新建公路工程勘测设计

Survey and Design of New Highway Engineering Based on UAV LiDAR

针对新建公路工程精确空间信息快速获取的难题,提出了一种基于无人机LiDAR的勘测设计方法。首先通过分析LiDAR系统主要误差源的影响,介绍无人机LiDAR系统选择方法,然后介绍利用无人机LiDAR数据及与公路CAD协同设计方法。公路工程勘测表明:利用无人机LiDAR获得的激光点云精度高程优于15 cm,可满足新建公路工程定测与施工图设计精度要求,该方法极大增强了公路工程高精度数据获取的灵活性。

Aiming at the problem of acquisition of accurate spatial information of new highway engineering,a survey and design method based on UAV LiDAR is proposed in this paper.Firstly,by analyzing the influence of the main error sources of LiDAR system,the selection method of UAV LiDAR system is introduced,and then the collaborative design method using UAV LiDAR data and highway CAD is introduced.The engineering survey of the highway shows that the precision elevation of laser point cloud obtained by UAV LiDAR is better than 15 cm,which can meet the accuracy requirements of location survey and construction drawing design of new highway engineering.This method greatly enhances the flexibility of high-precision data acquisition of highway engineering.