Power transmission line fog level recognition method and system based on images

Abstract

The invention provides a power transmission line fog level recognition method and system based on images. The method includes the steps that a plurality of training images of a power transmission line in the weather of sunshine, light fog, fog, heavy fog, smog and thick smog are collected; image classes corresponding to the sunshine, the light fog, the fog, the heavy fog, the smog and the thick smog are established according to the training images; characteristics of the image classes corresponding to the sunshine, the light fog, the fog, the heavy fog, the smog and the thick smog are extracted respectively; the characteristics of the image classes are used as input data of a naive bayes classifier to be trained so as to obtain a fog level recognition template base; an image to be recognized of the power transmission line is collected; characteristics corresponding to the image to be recognized are extracted; recognition is conducted on the characteristics corresponding to the image to be recognized according to the fog level recognition template base to obtain a recognition result; the recognition result of the image to be recognized is output. The fog levels are divided into the light fog, the fog, the heavy fog, the smog and the thick smog according to horizontal visibility distances, and classification recognition of the fog levels is achieved.

Description

technical field [0001] The present invention relates to the technical field of power monitoring, in particular to the detection technology of transmission lines in power systems, and specifically to a method and system for identifying fog levels of transmission lines based on images. Background technique [0002] Foggy weather seriously threatens the safe operation of the power system. Foggy weather will pollute the transmission lines, causing fog flash and pollution flash to the transmission lines. Fog flash is due to the large amount of pollutants contained in the dense fog, which pollutes the wires and leads to a sharp increase in the conductivity of the foggy air, causing short circuits, tripping, tripping and other faults in the transmission line, resulting in large-scale power outages in the power grid. Fog flashes can shut down electric locomotives, factories, and people's lives. Pollution flashover refers to the pollution attached to the insulating surface of elect...

AI Technical Summary

Problems solved by technology

[0005] Both of the above two patents involve the detection technology of smoke through video, but do not involve the detection of fog existing in transmission lines in power systems

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