Insulator chain fouling detection method and system based on binocular camera

Abstract

The invention relates to an insulator chain fouling detection method and system based on a binocular camera. The method comprises the following steps: calibrating an infrared camera and a high-definition camera, correcting the insulator infrared image and the insulator color image, determining the corrected insulator infrared image and the corrected insulator color image, determining a matching relationship between corresponding pixel points of the corrected insulator infrared image and the corrected insulator color image, respectively preprocessing the corrected insulator infrared image and the corrected insulator color image, extracting an insulator string region image in the preprocessed insulator infrared image by using a YOLOv4-tiny network, determining an insulator string segmentation image on the preprocessed insulator color image according to the matching relationship of the corresponding pixel points, and determining the pollution grade of the insulator string according to theinsulator string segmentation image. According to the invention, the problems of a single camera are overcome, and the detection accuracy of insulator fault detection is improved.

Description

technical field [0001] The invention relates to the field of insulator string contamination detection, in particular to a binocular camera-based insulator string contamination detection method and system. Background technique [0002] The insulator is a very important power system equipment, and its working condition directly affects the stability of the power system operation. Usually, insulator equipment has been exposed to the outdoor environment for a long time, and has been working under extreme conditions such as strong electric field and strong mechanical load, and there are contamination problems caused by foreign objects such as bird droppings, sediment, leaves, etc. or their own internal defects. If these problems cannot be discovered and solved in time, they will affect the stable operation of the power system, and in severe cases, may cause faults such as short circuit and open circuit of the power system, resulting in major economic losses. For this reason, the...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and system for detecting insulator string contamination based on a binocular camera, so as to solve the problem that the detection method based on an infrared single camera cannot measure the degree of contamination on the surface of an insulator string; Complicated, it is difficult to accurately locate the insulator and the detection accuracy of insulator fault detection is low

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