Insulator contamination condition detection method based on multispectral image information fusion

A multi-spectral image and state detection technology, used in image enhancement, image analysis, image data processing and other directions, can solve the problems of low signal acquisition sensitivity and difficult to meet accuracy, and achieve a wide range of applications, high reliability, and detection. The effect of high accuracy

Inactive Publication Date: 2017-04-26
TONGJI UNIV
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Problems solved by technology

The optical pulse detection method and the acoustic wave detection method are susceptible to the interference of environmental background noise, and the sensitivity of signal acquisition is not high; the visible light imaging method, infrared thermal imaging method and ultraviolet imaging method obtain the insulator surface color, Discharge

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  • Insulator contamination condition detection method based on multispectral image information fusion
  • Insulator contamination condition detection method based on multispectral image information fusion
  • Insulator contamination condition detection method based on multispectral image information fusion

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Embodiment

[0036] The insulator pollution state detection method based on multi-spectral image information fusion simultaneously detects the insulator pollution state through three kinds of spectral images: visible light image, infrared image and ultraviolet image. The visible light image is taken by a visible light camera, and the infrared image The infrared thermal imager is used to shoot, the ultraviolet image is recorded by the ultraviolet imager, and the three kinds of spectral images are fused through the BP neural network to detect the pollution state of the insulator.

[0037] Such as figure 1 As shown, the insulator pollution state detection method based on multispectral image information fusion detects the insulator pollution state by combining the three images of insulator visible light image, infrared image and ultraviolet image.

[0038] Visible light images of insulators are taken by high-definition visible light cameras under natural light, such as figure 2 as shown ( ...

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Abstract

The invention relates to an insulator contamination condition detection method based on multispectral image information fusion. The method comprises the following steps that the insulator contamination condition is detected through three spectral images of the visible image, the infrared image and the ultraviolet image simultaneously; the insulator contamination condition is comprehensively evaluated through information fusion according to the obtained spectral images. Compared with the prior art, the insulator contamination condition detection method has the advantages that the three image detection methods do not interfere with one another, the detection accuracy rate is high, non-contact is achieved, live detection is achieved, the detection speed is high, and the reliability of the detection result is high.

Description

technical field [0001] The invention relates to fault detection and diagnosis of high-voltage electrical equipment, in particular to an insulator pollution state detection method based on multispectral image information fusion. Background technique [0002] Insulators are the most widely used insulation equipment for transmission lines, and their safety and stability have attracted much attention. With the aggravation of air pollution, the surface pollution of insulators is more serious, and the increase of voltage level also increases the risk of pollution flashover of insulators. Therefore, it is of great significance to detect the pollution status of insulators and prevent pollution flashover of insulators to maintain the safe and stable operation of transmission lines. [0003] At present, the methods for detecting the pollution state of insulators can be divided into two categories: contact and non-contact. Contact methods mainly include leakage current method, equiva...

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Application Information

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IPC IPC(8): G01N21/94G06T7/00
CPCG01N21/94G06T7/0004G06T2207/10004G06T2207/10048G06T2207/20081G06T2207/20084
Inventor 金立军艾建勇田治仁
Owner TONGJI UNIV
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