Current transformer oil leakage automatic detection method and device

Abstract

The invention relates to the image processing field and more particularly, to an automatic detection method and apparatus for oil leakage of current transformer wherein the method comprises the following steps: obtaining a foreground moving object from an obtained image sequence; determining a candidate region in the foreground moving object; performs double Gaussian fitting on the gray histogram of the candidate region; and according to the fitting result, automatically detecting whether the candidate region has oil leakage or not. The apparatus includes an image obtaining unit, a foreground object detection unit, a candidate region determining unit, and an oil leakage determining unit. The automatic detection method and apparatus for oil leakage of current transformer provided by the invention can detect the current transformer 24 hours a day without manual inspection, which saves human and financial resources and effectively excludes the erroneous inspections brought about by the influence of the external factors such as the change of the light condition, the shadow and the rain.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an automatic detection method and device for oil leakage of a current transformer. Background technique [0002] Oil leakage of current transformers will cause insulation performance degradation and affect the safe operation of current transformers. Checking whether the current transformer is leaking oil is an important task of substation manual inspection. [0003] Using image processing technology to automatically detect whether the current transformer is leaking oil can not only quickly and accurately realize 24-hour remote monitoring, but also save a certain amount of manpower and material resources. [0004] The inventor's investigation and research found that: due to changes in lighting conditions, shadows, rain, etc., when using the existing technology to detect whether the current transformer is leaking oil, there are often problems such as false positives and missed dete...

AI Technical Summary

Problems solved by technology

[0004] The inventor's investigation and research found that: due to changes in lighting conditions, shadows, rain, etc., when using the existing technology to detect whether the current transformer is leaking oil, there will often be false positives and missed detection results, and the accuracy is not high.

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