Method for detecting transmission tower and transmission line based on point cloud data

Abstract

The invention provides a method for detecting transmission tower and transmission line based on point cloud data. The method comprises following steps: an unmanned aerial vehicle carrying system is provided, wherein the unmanned aerial vehicle carrying system is an unmanned aerial vehicle carrying an AS-100 Laser Lidar system; based on the point cloud trajectory captured by the UAV during flight,the point cloud map along the transmission tower and line is constructed according to the point cloud trajectory, and the video data is collected by UAV during flight; the data of ground laser point cloud, vegetation laser point cloud and transmission line laser point cloud are obtained by pre-processing the collected data of point cloud; the transmission tower location is optimized based on the profile, and the transmission tower location coordinate data and the transmission tower foundation cross-section data are used to analyze the transmission line indicators. By processing the point clouddata and video data collected by the UAV system, the quasi-DOM and DEM are generated. Combined with the classified point cloud, the three-dimensional modeling of transmission towers and transmissionlines is realized.

Description

technical field [0001] The invention relates to the field of surveying and mapping, in particular to a method for detecting transmission towers and lines based on point cloud data. Background technique [0002] In recent years, with the rapid development of China's economic construction, the demand for electricity has increased sharply, and the demand for power grid construction has become increasingly strong. At the same time, in the face of the huge power network that has been built, how to effectively manage it to ensure the normal operation of the power grid and ensure the safe transmission of power is even more important. A power outage not only brings huge losses to the economic benefits of power grid operating companies, but also has a serious impact on power users and even the entire society. [0003] Traditional line management, optimization, and power line inspection mostly use manual surveying and mapping or aerial photogrammetry, which has the following three di...

AI Technical Summary

Problems solved by technology

[0004] 1. The data is not intuitive, the accuracy is low, and the degree of reuse is not high;

[0005] 2. The operation intensity is high and the operation cycle is long;

[0006] 3. It is difficult to work in areas with complex terrain

[0007] In addition, the existing drone inspection technology only uses a single drone to carry the task load to perform tasks, and at the same time only uses the drone for remote photography. Is there any abnormality