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Composite insulator shed crack defect identification method

A composite insulator and defect identification technology, applied in the field of image processing, to achieve the effect of reducing errors

Active Publication Date: 2020-04-10
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no method for identifying crack defects in composite insulator sheds. This application provides a method for identifying crack defects in composite insulator sheds.

Method used

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  • Composite insulator shed crack defect identification method
  • Composite insulator shed crack defect identification method
  • Composite insulator shed crack defect identification method

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Embodiment Construction

[0047] Hereinafter, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. According to these detailed descriptions, those skilled in the art can clearly understand the present application and can implement the present application. Without departing from the principles of the present application, the features in different embodiments can be combined to obtain new implementations, or some features in certain embodiments can be replaced to obtain other preferred implementations.

[0048]The requirements for composite insulator sheath and umbrella shed materials are: weather resistance to prevent rapid deterioration caused by ozone, high-voltage circuit breaker ultraviolet light, humidity, high and low temperature, etc. The resistance to tracking and corrosion should meet the requirements of Article 5.6 of GB / T 19519-2004 to prevent the formation of conductive channels and the breakdown of sheaths and sheds. The fl...

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Abstract

The invention belongs to the technical field of image processing and relates to a composite insulator shed crack defect identification method. However, there is no identification method for the shed crack defect of a composite insulator at present, therefore, the invention provides the composite insulator shed crack defect identification method. The method comprises the following steps of: 1) obtaining an image containing cracks; 2) preprocessing the image containing the cracks; and 3) performing feature extraction on the cracks to obtain the contours of the crack, and then identifying the cracks. Therefore, the contour features of the cracks can be effectively obtained, and the identification of the crack defects of the composite insulator is realized. The area proportion of a crack regionalization area in the area of a whole insulator shed is calculated through further processing.

Description

technical field [0001] The present application belongs to the technical field of image processing, and in particular relates to a defect recognition method for shed cracks of composite insulators. Background technique [0002] Compared with porcelain and glass insulators, composite insulators have the advantages of light weight and high pollution flashover voltage. The use of composite insulators has increased rapidly in the last 15 years. So far, composite insulators have been used in more than 30 countries and regions around the world. As of 2014, there were about 7.1 million composite insulators running on the grid in my country, especially in moderately and heavily polluted areas, where the use of composite insulators is relatively large, which plays an important role in ensuring the reliable operation of the power grid. The sheath and the shed are the outer insulating parts of the composite insulator. Its main function is to protect the core rod from weather and elect...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T5/00G06T7/12G06T7/13
CPCG06T7/0006G06T7/13G06T7/12G06T2207/20036G06T5/70
Inventor 金花吕泽昆袁之康屠幼萍辛立杰王成贺林轩李赵晶
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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