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Method and device for detecting defects of toughened glass insulator

A technology for tempered glass and defect detection, which is applied in the direction of optical testing for defects/defects, and can solve the problems of inability to perform quality inspection and control of tempered glass insulators, and difficulty in separation

Inactive Publication Date: 2013-06-12
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] However, tempered glass insulators are complex disk-shaped glass pieces with multi-layer grooves. The pictures captured by the camera contain a large amount of ring-shaped background light band stripe information. Traditional edge detection or adaptive threshold segmentation methods often It is difficult to effectively separate the existing defects from the background, so that the quality inspection and control of tempered glass insulators cannot be carried out

Method used

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  • Method and device for detecting defects of toughened glass insulator
  • Method and device for detecting defects of toughened glass insulator
  • Method and device for detecting defects of toughened glass insulator

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Embodiment Construction

[0052] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0053] The concentric arc scanning-based defect detection device for tempered glass insulators involved in this embodiment consists of an optical imaging system, an image acquisition system, and a rotation control system.

[0054] Such as figure 1 As shown: the above device includes: frosted plexiglass tray 2, LED white light source 3, stepper motor 4, CCD camera 5, rotary console 6, programmable PLC 7, computer 8. Wherein, the frosted plexiglass tray 2 and the stepper motor 4 are connected by a coupling, and the rotation of the stepper motor 4 drives the frosted plexiglass tray 2 to rotate, and the insulator to be detected is placed on the frosted plexiglass tray 2 and rotates together; The light source is placed under the frosted plexiglass tray 2, and can be arranged on the bottom of the insulator with a plane light source. The present inv...

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Abstract

The invention discloses a method and a device for detecting defects of a toughened glass insulator. The method for detecting the defects of the toughened glass insulator breaks through the traditional way in which progressive scanning is carried out during image processing, aims at the imaging characteristics of the toughened glass insulator, and adopts a concentric circle scanning method, so that a great deal of unrelated background is inhibited, only an image of parts with the detects is left, and the later image segmentation is facilitated; and the method is accurate and effective in defect detection.

Description

technical field [0001] The invention relates to a defect detection device and a detection method suitable for tempered glass insulators, especially the detection method and device for bubble defects. technical background [0002] Insulators are an important part of overhead transmission lines and the most widely used devices in power systems. Its structure is relatively simple and its manufacturing cost is relatively low, but its importance is no less than that of other equipment. During the manufacturing process of tempered glass insulators, due to many factors, such as formula, raw material production, equipment and tool conditions, heat treatment of glass parts, etc., glass parts sometimes have defects such as bubbles, cracks, stones, roughness, damage, deformation, etc. These defects must be strictly controlled, detected and screened to ensure the quality of the finished tempered glass insulators and improve the reliability of glass insulators in power system operation. ...

Claims

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Application Information

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IPC IPC(8): G01N21/88
Inventor 吴洪潭叶含笑
Owner CHINA JILIANG UNIV
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