Fault distance location method of transmission line based on binocular vision technology

Under the influence of bad weather such as strong winds, rain and snow, balloons, kites, plastics, etc. are often blown onto the high-voltage transmission line, resulting in short circuits and discharge failures of power lines. Therefore, this paper proposes a transmission line fault distance positioning method based on binocular vision technology. Firstly, the distortion correction algorithm and binocular stereo correction algorithm are used to correct the binocular view, and then the image binarization algorithm and the vertex-based corner point detection algorithm are used to improve the positioning accuracy of transmission line faults, and finally the semi-global stereo matching (SGM) algorithm based on least squares fitting interpolation is used to refine the basic parallax diagram. Using the information of parallax diagram and the principle of ranging, the fault distance positioning method of transmission line is established. Experimental results show that the method proposed in this paper meets the accuracy standard and can meet the needs of unmanned aerial vehicles in transmission line inspection.