Application of Lidar Technology in Power Engineering Surveying and Mapping

Airborne lidar technology provides high-precision and real-time data support for power grid planning, survey, design, construction and operation management with its digital, high-precision and 3D characteristics, and comprehensively improves the efficiency of power grid construction and management. This paper analyzes the composition and principle of airborne lidar technology as a fundamental breakthrough point, and discusses the application of airborne lidar technology in power engineering surveying and mapping. 30 inspection points were collected evenly in this survey area, and the results showed that the median error in the plane was 0.15 m, the maximum error was 0.7 m, the median error in elevation was 0.16 m and the maximum error was 0.12 m, which met the requirements of making 1:2000 Digital Elevation Model (DEM) and Digital Orthophoto Map (DOM) from point cloud data. After the route selection, the height of crossing the point line is analyzed by using the point cloud data, which can be used by the tower arrangement of line electrical specialty. Compared with the previous projects that need to go to the site to measure the line height, it saves time and improves the operation efficiency.