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Identification method of insulator pollution components based on micro-hyperspectral technology

An identification method and insulator technology, applied in the direction of optical testing flaws/defects, image enhancement, instruments, etc., can solve the problems of cumbersome operation process and inability to observe the distribution of contamination components on the surface of insulators, so as to achieve simple operation process and eliminate the unevenness of light source , Improve the effect of reliability and safety

Active Publication Date: 2021-06-22
SOUTHWEST JIAOTONG UNIV +1
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Problems solved by technology

[0005] In order to solve the problem that the distribution of contamination components on the surface of insulators cannot be observed and the operation process is cumbersome in the above-mentioned technologies, the present invention proposes an accurate and convenient identification method of contamination components of insulators based on microscopic hyperspectral technology for detection from a microcosmic perspective

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  • Identification method of insulator pollution components based on micro-hyperspectral technology
  • Identification method of insulator pollution components based on micro-hyperspectral technology
  • Identification method of insulator pollution components based on micro-hyperspectral technology

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Embodiment

[0041] Such as figure 1 As shown, the embodiment of the present invention discloses a method for identifying pollution components of insulators based on microscopic hyperspectral technology, including the following steps:

[0042] S1: Select the sampling area, disassemble part of the insulators and bring them back and record their picking positions, windward side, leeward side and other information one by one, cut the insulating sheet to get the dirty sample of the polluted insulator, and obtain the microscopic hyperspectral image, according to the statistical law (Statistical law is an expression of the classification training set and test set, such as trying to make the data balance when dividing, not excessive tilt, etc.) Divided into the first atlas set and the second atlas set;

[0043] Correction processing, choose the black and white correction method, the formula is:

[0044]

[0045] In the formula, R ci Image data corrected for black and white; Sample ciis the ...

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Abstract

The invention discloses a method for identifying the pollution components of insulators based on microscopic hyperspectral technology, which belongs to the technical field of maintenance of power transmission and transformation equipment. The first atlas and the second atlas; respectively extracting the hyperspectral lines of the mixed components of the dirty samples in the first atlas and the second atlas; separating the dirty components of the dirty samples, and performing microscopic hyperspectral imaging on each dirty component, Establish a pollution component spectrum library; establish a pollution component identification model based on the pollution component spectrum library and the hyperspectral line of the mixed component of the pollution sample corresponding to the first atlas, and use the hyperspectral line of the mixed component of the pollution sample corresponding to the second atlas as a test Set, input the test set into the pollution component recognition model for optimization. The invention realizes the microscopic detection of the pollution components of the insulator, has a simple operation process, is beneficial to the identification of the pollution components, and can observe the distribution of the pollution components on the surface of the insulator.

Description

technical field [0001] The invention relates to the technical field of operating state maintenance of power transmission and transformation equipment, in particular to a method for identifying contamination components of insulators based on microscopic hyperspectral technology. Background technique [0002] The difference in pollution composition of transmission line insulators will affect its flashover voltage: the pollution of insulators with the same gray density and different composition has different effects on flashover voltage; The flashover characteristics of insulator strings, and the thermal decomposition characteristics and insoluble properties of some special components have a significant impact on the flashover voltage of insulators. Therefore, accurate identification of the pollution components of insulators is of great significance for evaluating the insulation state of insulators. [0003] At present, X-ray Energy Spectroscopy (EDS) detection methods, X-ray P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/94G06T5/00
CPCG01N21/94G06T5/94G06T5/70
Inventor 吴广宁邱彦郭裕钧张血琴刘凯高国强高波杨雁
Owner SOUTHWEST JIAOTONG UNIV
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