A target recognition method and device based on ultraviolet imaging corona detection

Abstract

The invention relates to a target recognition method and device based on ultraviolet imaging corona detection, and an ultraviolet imaging corona detector, wherein the method includes: acquiring ultraviolet images and visible light images of the observation area through a dual-spectrum camera, and extracting discharge targets in the ultraviolet images , analyze the geometric characteristics of the extracted discharge target, and determine the center position of the discharge target; calculate the corresponding position of the center position of the discharge target in the visible light image through the parameters of the visible light camera and the solar-blind ultraviolet camera, and take this position as the center Determine the region of interest, use the edge detection method to detect the target in the region of interest, obtain the contour information of the discharge target, and calculate the target features; compare the target features of the extracted visible light image with the target features in the typical discharge equipment database , to determine the device category of the extracted discharge target. The invention can be used for target recognition and distance measurement methods of ultraviolet imaging corona detection.

Description

technical field [0001] The invention relates to the technical field of ultraviolet imaging corona detection, in particular to a target recognition method and device based on ultraviolet imaging corona detection and an ultraviolet imaging corona detector. Background technique [0002] At present, the corona detection technology of ultraviolet imaging mainly quantifies the intensity of corona discharge according to the number of ultraviolet photons displayed by the detection equipment per unit time. This method can count the ultraviolet photons emitted by the ionization and recombination process of the charged particles per unit time when the corona discharge occurs in the target in real time. In the actual detection process, the consequences of different target equipment or different parts of the same equipment are different. Therefore, how to more accurately identify the target equipment or different parts of the equipment is a problem that needs to be solved by the ultravio...

AI Technical Summary

Problems solved by technology

In addition, the distance between the discharge location and the detection equipment is also an important factor affecting the detection results. At present, it is mainly measured by manual visual estimation or by using special distance measuring equipment. The former is greatly affected by the subjective factors of different personnel. , the accuracy of the measurement is difficult to guarantee, and the latter not only increases the product cost, but also increases the complexity of the actual detection and the workload of the testing personnel

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