Visible light image recognition method for pollution state of insulators based on infrared image assistance

Abstract

The invention relates to a method for identifying the pollution state of an insulator based on an infrared image-assisted visible light image. The method includes the following steps: collecting a visible light image of an insulator, processing the visible light image of the insulator, and extracting a characteristic value of the visible light; collecting an infrared image of the insulator, and processing the infrared image of the insulator and infrared eigenvalue extraction; establish a mathematical model of pollution level recognition based on visible light images and a mathematical model of pollution state recognition of visible light images based on infrared image information; according to the relative humidity of the environment, select the corresponding mathematical model to obtain the pollution level of insulators. Compared with the prior art, the invention has the advantages of removing the influence of ambient light, considering the influence of high relative humidity environment on the visible light method, and the mathematical model is simple and universal.

Description

technical field [0001] The invention relates to a method for identifying the pollution state of an insulator, in particular to a method for identifying the pollution state of an insulator based on an infrared image-assisted visible light image. Background technique [0002] Insulators play an important role in transmission and distribution networks. Various particles or bird droppings such as dust, saline, and industrial smoke in the air will accumulate on the outer surface of the insulator to form a dirty layer, which will reduce the insulation strength of the insulator and cause pollution flashover. cause great economic losses. If the degree of pollution can be measured conveniently, safely, and accurately, and a reasonable cleaning plan can be formulated accordingly, pollution flashover can be prevented more effectively, the stable operation of the power grid can be strengthened, and economic losses caused by pollution flashover can be reduced. [0003] In order to accur...

AI Technical Summary

Problems solved by technology

Although the leakage current method can reflect more serious insulation faults, the time left for the operator to deal with after the insulation failure is judged is limited, so it is difficult to be widely used, and it requires a set of detection devices to be installed on each insulator string, which is too expensive , the maintenance and overhaul of the device needs to be carried out with power off

Images