Arrester and insulator defect infrared imaging detection and judgment method based on image synthesis

An image synthesis and infrared imaging technology, applied in the direction of testing dielectric strength, etc., can solve the problem of inability to make accurate judgments on the internal and external defects of arresters and insulators, achieve a small amount of data, suppress side lobes, and improve representativeness. Effect

Inactive Publication Date: 2018-03-30
STATE GRID HUNAN ELECTRIC POWER +2
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Problems solved by technology

However, since the infrared thermal images of arresters and insulators are affected by internal defects of arresters, surface contamination and surface defects of insulators, it is often impossible to make accurate judgments on internal defects and external defects of arresters and insulators using the above-mentioned single infrared thermal image method.

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  • Arrester and insulator defect infrared imaging detection and judgment method based on image synthesis

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[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 As shown, the infrared imaging detection and judgment method for arrester and insulator defects based on image synthesis of the present invention, the steps are:

[0019] S1: First take a 360-degree shot around the arrester and insulator, and take an infrared thermal image map;

[0020] S2: Obtain a complete two-dimensional infrared thermal image through image synthesis technology; through two-dimensional imaging, a new acquisition and encoding and decoding of signals by compressed sensing is realized, imaging is realized with a small amount of data, and side lobes are effectively suppressed. To a certain extent, the resolution of the target in imaging is improved, and an effective way is provided for effectively reducing the high resolution. The most important thing is that the spectrum obtained through 360-...

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Abstract

The invention discloses an arrester and insulator defect infrared imaging detection and judgment method based on image synthesis. The method includes the following steps: S1, first shooting is performed around an arrester and an insulator to shoot infrared thermograms; S2, a complete two-dimensional infrared thermogram is obtained through an image synthesis technology; and S3, the complete two-dimensional infrared themogram obtained by Step S2 is utilized to make a comparison to judge whether the arrester and the insulator have defects. The arrester and insulator defect infrared imaging detection and judgment method based on image synthesis has the advantages of simple principle, simple and convenient operation, wide range of application, high detection precision and the like.

Description

technical field [0001] The invention mainly relates to the detection field of electric equipment, in particular to an infrared imaging detection and judgment method for arrester and insulator defects based on image synthesis. Background technique [0002] In the process of inspection, maintenance or overhaul of power equipment, it is necessary to detect or monitor the power equipment, such as lightning arresters, insulators and other devices, it is necessary to do long-term follow-up detection. In the traditional way, manual detection is often used to detect devices such as arresters and insulators. For example, the heating defects of arresters and insulators can be detected, analyzed and judged by taking infrared thermal images, that is, several single infrared images are usually taken. Thermal images are then compared to historical images for defects. However, since the infrared thermal images of arresters and insulators are affected by internal defects of arresters, surf...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
Inventor 刘卫东邓维黄博文黄超张寒
Owner STATE GRID HUNAN ELECTRIC POWER
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