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SF6 gas detection method based on infrared image processing

An infrared image processing and infrared image technology, which is applied in the field of SF6 gas leakage detection based on infrared image processing, can solve the problems of large noise in infrared images and unfavorable real-time display, etc., and achieves the effect of simple image acquisition and simple acquisition process.

Inactive Publication Date: 2013-07-24
JINCHENG POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER +2
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Problems solved by technology

[0008] The purpose of the present invention is to provide a SF6 gas detection method based on infrared image processing to solve the problem that the existing passive infrared SF6 gas leakage detection method has large infrared image noise and is not conducive to real-time display

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Embodiment Construction

[0047] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0048] figure 1 A preferred implementation of the SF6 gas detection method based on infrared image processing proposed by the present invention is shown. Such as figure 1 As shown, the method includes the following steps:

[0049] S1. Acquire the original infrared image of SF6 gas by means of passive infrared detection, and perform non-uniformity correction on the original infrared image to obtain a corrected infrared image;

[0050] S2. Perform normalization processing on the corrected infrared image, and convert the processed image into a grayscale image;

[0051] S3. Perform image filtering (including spatial filtering and wavelet denoising) and grayscale linear transformation on the grayscale image to obtain a target image;

[0052] S4. Display the target image in real time.

[0053] Preferably, ...

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Abstract

The invention discloses a SF6 gas detection method base on infrared image processing. The method comprises the steps of: S1, SF6 gas original infrared image is obtained with a passive infrared detection manner, and the original infrared image is subjected to non-uniformity correction, such that a corrected infrared image is obtained; S2, the corrected infrared image is subjected to normalization treatment, and the processed image is converted into a grayscale image; S3, the grayscale image is subjected to image filtering and grayscale linear transformation, such that a target image is obtained; and S4, the target image is subjected to real-time displaying. With the technical scheme provided by the invention, problems such as large infrared image noise and difficulty in real-time displaying in existing passive infrared SF6 gas leakage detection method can be solved.

Description

technical field [0001] The invention relates to the technical field of gas detection, in particular to an SF6 gas leakage detection method based on infrared image processing. Background technique [0002] High-voltage circuit breakers, GIS (gas-insulated metal-enclosed switchgear) are the most important control and protection equipment in power systems. Due to the excellent insulation performance and arc extinguishing performance of SF6 (Sulfur Hexafluoride, sulfur hexafluoride) gas, most domestic power companies have adopted SF6 cutouts and SF6 GIS. With the extensive use of SF6, the problem of SF6 leakage has gradually emerged. Due to its non-contact detection, fast and accurate advantages, modern infrared detection methods gradually replace traditional detection methods and become the development trend of SF6 leakage detection. [0003] Infrared detection methods for SF6 leakage are divided into two types: active and passive infrared detection. The method of active inf...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/35G01M3/36G01N21/3504
Inventor 吴波王库王生明宰洪涛谢添刘连根田瑞萍赵晋芳常晋兵
Owner JINCHENG POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER
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