Automatic point cloud classification method in transformer substation scene based on three-dimensional grid

Abstract

The invention relates to the field of electric power automation, in particular to a three-dimensional grid-based automatic point cloud classification method in a substation scene. The method comprises the following steps: de-noising three-dimensional point cloud data polled by an unmanned aerial vehicle, performing downsampling to divide grids, and performing coarse classification on the grids by using spatial features of a power line and an electric power tower; correcting and complementing the power line by using the spatial line characteristics of the power line; correcting the category of an electric power tower and calculating the center of the electric power tower by utilizing the spatial relationship between the electric power tower and a power line, performing clustering segmentation by taking the center as a seed point, and then performing up-sampling to obtain accurate point cloud classification of the electric power tower and the power line. The classification method can establish an accurate spatial position and three-dimensional model of the power tower and the power line, is used for planning an unmanned aerial vehicle patrol line, and effectively improves the patrol efficiency. And for different electric power scenes, the method has relatively high accuracy and robustness.

Description

technical field [0001] The invention belongs to the field of electric power automation, and in particular relates to a point cloud automatic classification method in a substation scene based on a three-dimensional grid. Background technique [0002] The relevant inspection work of substation equipment is an important part of the daily operation of power equipment. The inspection work ensures whether the power equipment can operate safely. In order to provide a reference for the management process of electric power enterprises. In order to ensure the safe operation of substations, equipment inspection has always been the core work of the entire substation operation process. Its main purpose is to check the current operation status of the equipment, so as to discover the defects existing in the operation process of the equipment at the first time, and promote the safe, reliable and stable operation of the equipment. However, as far as the inspection work of the vast majority...

AI Technical Summary

Problems solved by technology

However, as far as the inspection work of the vast majority of substations is concerned, there are still major problems. During the inspection process, some inspectors do not pay enough attention to the importance of the inspection work itself. The quality of the equipment is not high, and the normal operation of the equipment cannot be guaranteed. This has buried a huge safety hazard for the safety equipment of the substation.

Images