System and method for measuring unmanned aerial vehicle electrical line patrol on basis of images

Abstract

The invention relates to a system and a method for measuring an unmanned aerial vehicle electrical line patrol on the basis of images. A box body comprises an unmanned aerial vehicle body, a camera, an image transmission unit, a wireless control unit, a ground control station and a reference target which is arranged on the ground; the reference target is used for calibrating a three-dimensional scene and building the corresponding relation of the practical size of the scene and picture pixel values; the image transmission unit is respectively connected with the camera and the ground control station, and the wireless control unit is respectively connected with the unmanned aerial vehicle body and the ground control station; and the ground control station controls the flying and hovering of the unmanned aerial vehicle body through the wireless control unit, the images of the camera are obtained through the image transmission unit, a camera visual three-dimensional model is built according to the reference target and the images of the camera, a reference line is selected, and whether a line is safe or not is judged according to a distance from the measurement point of the three-dimensional model to the reference line. When the unmanned aerial vehicle is hovered, coordinate system measurement is carried out on a monitoring picture of a camera through a three-dimensional calibration method, and thus, automatic distance measurement is realized.

Description

technical field [0001] The invention relates to a system and a method for measuring the surrounding environment of a line when an unmanned aerial vehicle in the electric power industry performs line inspection operations. Background technique [0002] In the prior art, the power line inspection methods mainly include manual ground line inspection, artificial high-altitude line inspection, robot line inspection, satellite remote sensing line inspection, manned helicopter high-altitude line inspection, UAV flight control line inspection, etc. Line inspection is a meticulous and dangerous job. With the development of modern technology, manual line inspection is obviously inefficient and dangerous. Satellite remote sensing line inspection needs to be limited by meteorological and geographical conditions. Therefore, UAV line inspection technology has received more and more attention and reuse. [0003] The traditional UAV line inspection only sends the picture back to the groun...

AI Technical Summary

Problems solved by technology

However, in the process of line inspection, some distance measurements are required, such as the distance between a certain point on the line and nearby trees, the distance between the line and crossover cables, etc. These parameters cannot be measured with a simple screen

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