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Method for evaluating and judging hydrophobicity grade of composite insulator of annular light tube

A technology of composite insulators and annular lamps, which is applied to measurement devices, instruments, scientific instruments, etc., can solve the problems of increasing the difficulty of water droplet boundary extraction, poor water droplet boundary extraction results, and uncommon boundary extraction algorithms, and achieves a simple structure. , the contrast is obvious, easy to promote the effect of application

Inactive Publication Date: 2013-06-26
YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST +1
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Problems solved by technology

However, the evaluation method based on digital image processing composite insulator hydrophobicity level is easily affected by pollution and weak boundaries. During operation, the surface of composite insulators is covered with a layer of deep-color pollution, which makes the extraction effect of water droplet boundaries poor; water droplets in local areas on composite insulators There will be a weak boundary, which also increases the difficulty of water drop boundary extraction, and the complexity of the shape and edge of water droplets on the surface of composite insulators makes the boundary extraction algorithm not universal
Therefore, the evaluation method of hydrophobicity grade of composite insulators based on digital image processing needs to use a very complex algorithm to segment the water drop area, and the segmentation effect is not ideal

Method used

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  • Method for evaluating and judging hydrophobicity grade of composite insulator of annular light tube

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Embodiment Construction

[0020] The following is attached figure 1 , to further describe the technical solution of the present invention:

[0021] A method for judging the hydrophobicity level of composite insulators with annular lamp tubes. The invention includes a judging device composed of a visual camera system, a water spray system, and a ring lamp tube, extraction of water drop boundaries from digital images, and grading of hydrophobicity based on digital images of water drop boundaries. Software system composition;

[0022] The operation method of its evaluation is as follows:

[0023] The first step is to board the tower and turn on the circular light tube;

[0024] The second step is to turn on the visual camera system and focus on the surface of the composite insulator to be tested;

[0025] The third step is to use the water spray system to spray water mist on the surface of the composite insulator to be tested;

[0026] The fourth step is to use a visual camera system to take pictures ...

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Abstract

The invention discloses a method for evaluating and judging hydrophobicity grade of a composite insulator of an annular light tube. The method comprises an evaluating and judging device and a hydrophobicity grading software system, wherein the evaluating and judging device consists of a visualized image pickup system, a water spraying system and the annular light tube, and the hydrophobicity grading software system is used for digital image water drop boundary extraction based on a water drop boundary digital image. The method has the advantages of simple structure, convenience in operation, good stability, multiple measurement parameters, easiness in popularization and application, and the like.

Description

technical field [0001] The invention relates to a method for judging the hydrophobicity grade of a composite insulator, which is a method for realizing online evaluation of the hydrophobicity of a composite insulator by combining optical and digital image processing techniques. Background technique [0002] Silicone rubber, the outer insulating material used in composite insulators, has good hydrophobicity and unique hydrophobic mobility, which makes it have significant advantages in anti-pollution flashover performance. A large number of research results at home and abroad show that compared with traditional porcelain and glass insulators, composite insulators have significant advantages in anti-pollution flashover performance. Its superior anti-fouling flashover characteristics benefit from many factors, but it is mainly attributed to the good hydrophobicity of the outer insulating material silicone rubber. Hydrophobicity means that the silicone rubber material has low su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/00
Inventor 孙伟忠侯亚非马仪胡建林丁薇周仿荣黄然白欢
Owner YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST
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