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A visual inspection method for disk-shaped suspension porcelain insulators

A porcelain insulator and visual inspection technology, applied in the field of visual inspection, can solve the problems of unable to meet the production capacity and pass rate requirements of offline enterprises, many missed inspections, and low detection efficiency, so as to improve the detection work efficiency, facilitate operation, Check for precise results

Active Publication Date: 2019-11-08
CHANGZHOU VOCATIONAL INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The quality of insulators must be checked layer by layer, but at present, all manufacturers use manual identification and inspection. The current inspection efficiency is very low, the labor load is heavy (the insulator is heavy), and there are many missing inspections, which can no longer meet the offline requirements. Enterprise's capacity demand and qualification rate demand

Method used

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  • A visual inspection method for disk-shaped suspension porcelain insulators
  • A visual inspection method for disk-shaped suspension porcelain insulators
  • A visual inspection method for disk-shaped suspension porcelain insulators

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Embodiment

[0041] A visual detection method for a disk-shaped suspension porcelain insulator in this embodiment, the steps are:

[0042] 1) Establish a feature library of various defects;

[0043] 2) Determine the range of feature values ​​in the feature library of each type of defect, and then subdivide the type of defect, and establish a more detailed defect reference database, so as to be able to judge which type of defect and which state; step 2 ) is as follows: 2-1) prepare pictures in various states of various defects; 2-2) scan the pictures prepared in step 2-1) into the industrial computer; 2-3) collect the The image is converted into a grayscale image, and the region of interest to be measured is selected on the converted grayscale image; 2-4) Blob analysis is performed on the region of interest, and then the characteristic value ranges of various defects in various states are obtained.

[0044] 3) Send instructions to the mechanical system through the industrial computer to tr...

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Abstract

The invention discloses a visual detection method for a disc suspension type ceramic insulator. The method comprises the following steps: 1) establishing feature libraries of various defects; 2) confirming a numerical range of each type of defects in the feature library, and further refining the defects to establish a more detailed defect reference database to determine the type and specific state of a defect; 3) determining if a to-be-detected ceramic insulator is at a detection position; 4) performing image processing on collected image data; 5) utilizing a threshold segmentation principle to process and analyze the image processed and analyzed in the step 4), comparing the processing and analysis result with the defect reference database established in the step 2) one by one, if matching match is found, sending an unqualified signal of the ceramic insulator, and if not, sending a qualified signal of the ceramic insulator. The visual detection method is convenient in operation, is capable of greatly reducing labor intensity and increasing the detection working efficiency and is capable of accurately detecting the defects of the ceramic insulator.

Description

technical field [0001] The invention relates to a visual detection method, more specifically, to a visual detection method of a disk-shaped suspension porcelain insulator. Background technique [0002] Disc-shaped suspension porcelain insulators are used for insulating and fixing wires in high-voltage overhead transmission and distribution lines. Insulator strings are generally assembled from insulator elements to be used on lines of different voltage levels. Insulators can be divided into ordinary type and pollution-resistant type according to their use environment and region. The pollution-resistant products are divided into double-layer umbrella pollution-resistant type, three-layer umbrella pollution-resistant type, and straw hat pollution-resistant type according to the different umbrella structures. There are four kinds of anti-pollution type and bell umbrella umbrella; according to the connection mode of the insulator, it can be divided into ball type connection and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/95
CPCG01N21/95
Inventor 朱梓清刘小峰吴访升
Owner CHANGZHOU VOCATIONAL INST OF ENG
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