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GIS thermal fault diagnosis method based on fusion of local and global feature information

A global feature and diagnostic method technology, applied in hot spot detection, radiation pyrometry, switch device setting, etc., can solve problems such as easy to cause misjudgment, low resolution, and GIS local image is difficult to meet the global positioning of faults, etc., to achieve Effects of improving accuracy, reducing the influence of interference, and improving precision

Active Publication Date: 2018-07-06
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Infrared imaging equipment generally has a low resolution, and it is difficult to obtain a small field of view and clear GIS local image to meet the requirements of global fault location, but it is easily affected by many factors
The global infrared image information obtained by the traditional infrared temperature measurement technology currently used is relatively vague, which is easy to cause misjudgment, and the GIS thermal fault diagnosis based on infrared image feature processing from local to global can comprehensively consider local and global features when feature extraction , use global features to describe the external shape of data, use local features to describe the internal organizational structure of data, and generate more accurate and intuitive global features to judge and locate GIS thermal faults

Method used

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  • GIS thermal fault diagnosis method based on fusion of local and global feature information
  • GIS thermal fault diagnosis method based on fusion of local and global feature information
  • GIS thermal fault diagnosis method based on fusion of local and global feature information

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Embodiment Construction

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0041] The invention provides a GIS thermal fault diagnosis method based on fusion of local and global feature information, including:

[0042] 1) Collecting GIS partial images, and converting the information it contains into corresponding image vision and data statistics information, the GIS partial images include partial infrared images and partial visible light images;

[0043] 2) Establishing a GIS global shell infrared image based on the GIS local image, specifically: based on the GIS structure and image texture, the small objects and small holes in the local infrared image are c...

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Abstract

The invention relates to a GIS thermal fault diagnosis method based on fusion of local and global feature information, which comprises steps: 1) GIS local images are acquired, wherein the GIS local images comprise a local infrared image and a local visible light image; 2) based on the local infrared image, a GIS global shell infrared image is built; and 3) fault is distinguished on the GIS globalshell infrared image and a fault point is positioned. In comparison with the prior art, the GIS present situation can be timely known, and a GIS thermal fault point is recognized and positioned on thepremise of ensuring accuracy of the infrared information.

Description

technical field [0001] The invention belongs to the technical field of GIS thermal fault diagnosis, and in particular relates to a GIS thermal fault diagnosis method based on fusion of local and global feature information. Background technique [0002] At present, whether the GIS equipment can work normally is related to the safe and stable operation of the power system. With the increasing number of GIS equipment and the increasing operating life, various defects are gradually increasing. Fever defects are the main defect type of GIS faults. In recent years, equipment failures have been common, and have caused many equipment outages and even explosions. Therefore, it is of great significance to strengthen the detection and analysis of GIS equipment thermal failures. [0003] In the current digital information age, infrared real-time monitoring of GIS surface temperature is widely used to ensure the safe and reliable operation of GIS. Infrared imaging equipment generally ha...

Claims

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Application Information

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IPC IPC(8): G01J5/00G06T7/00G06T7/13G06T7/30
CPCG06T7/0008G06T7/13G06T7/30G01J5/0066G01J5/0096G01J2005/0077G06T2207/30108G06T2207/10048G06T2207/10004G06T2207/20036H02B13/065
Inventor 高凯陈洪岗徐鹏金立军马利戴伟伟
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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