Section insulator damage diagnosis system and method based on arc image detection

Abstract

The invention relates to a section insulator damage diagnosis system and a section insulator damage diagnosis method based on arc image detection. The section insulator damage diagnosis system comprises an image acquisition module, an image preprocessing module and an abnormality detecting module, wherein the image acquisition module is used for acquiring a video image comprising a section insulator region; the image preprocessing module is used for preprocessing the video image; the abnormality detecting module is used for extracting an arc discharge image according to the preprocessed videoimage, calculating a grayscale value and an arc discharge region area value of the arc discharge image, acquiring a corresponding arc discharge current value according to a premeasured mapping function, and judging whether the section insulator is abnormal according to the arc discharge current value. The section insulator damage diagnosis system and the section insulator damage diagnosis method calculate the arc discharge current value based on the image, can judge the operating state of the section insulator effectively and precisely, and are convenient for fault judgment and early warning.

Description

technical field [0001] The invention relates to the field of computer image detection, in particular to a damage diagnosis system and method for segmented insulators based on arc light image detection. Background technique [0002] Segment insulator is a kind of insulation equipment used in catenary for power supply segmentation. Due to voltage differences, installation defects, and pantograph wear and other reasons, arcing discharges may occur when trains pass through segmental insulators, causing damage to segmental insulators. If the section insulator is not replaced in time, it will pose a threat to the safety of the train. At present, the general service life of segmented insulators is about 3 years. At this stage, human eye recognition is mainly used to detect whether the equipment is working normally, and there is a lack of quantitative indicators to characterize its damage. [0003] Therefore, it is urgent to develop a system and method that can quickly detect the ...

AI Technical Summary

Problems solved by technology

Due to voltage differences, installation defects, and pantograph wear and other reasons, arcing discharges may occur when trains pass through segmental insulators, causing damage to segmental insulators. If the section insulator is not replaced in time, it will pose a threat to the safety of train operation

At present, the general service life of segmented insulators is about 3 years. At this stage, human eyes are mainly used to detect whether the equipment is working normally, and there is a lack of quantitative indicators to characterize its damage.

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