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A crosslinked polyethylene insulating layer surface flatness detection method based on edge detection

A cross-linked polyethylene, edge detection technology, applied in image data processing, instruments, computing and other directions, can solve the problems of unstable detection quality, low efficiency and low accuracy.

Active Publication Date: 2019-04-02
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for detecting the surface smoothness of the cross-linked polyethylene insulating layer based on edge detection, which solves the shortcomings of the existing methods such as low efficiency, low accuracy, and unstable detection quality.

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  • A crosslinked polyethylene insulating layer surface flatness detection method based on edge detection
  • A crosslinked polyethylene insulating layer surface flatness detection method based on edge detection
  • A crosslinked polyethylene insulating layer surface flatness detection method based on edge detection

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Embodiment Construction

[0052] figure 2 Is the overall flow chart of the present invention. Such as figure 2 Shown, the present invention comprises the following steps:

[0053] The first step is to deploy the industrial camera 1 and digital image processor at the designated location, and build a detection platform, such as figure 1 As shown, the method is:

[0054] 1.1 The high-voltage cable 4 deploys three industrial cameras 1 at intervals of 2 meters, and the three industrial cameras 1 are evenly deployed at the top, bottom left, and bottom right of the same section of the high-voltage cable 4, and each industrial camera 1 forms a 120° three-dimensional space Angle, to capture the image information of the surface of the insulation layer of the high-voltage cable 4. The industrial camera 1 selects a CCD industrial line scan camera, wherein the parameter requirements are: the video system selects PAL system as 768×576, the pixel depth is 12Bit, selects the progressive exposure mode, the exposu...

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Abstract

The invention discloses a crosslinked polyethylene insulating layer surface flatness detection method based on edge detection, and aims to solve the problems of low efficiency, low accuracy and the like of an existing method. According to the technical scheme, a detection platform composed of an industrial camera, a digital image processor and a client is established, image edge detection softwareis burned in the digital image processor, and result judgment software is installed on the client. The three industrial cameras extract image information of the surface of the high-voltage cable insulating layer; three images are obtained respectively, the three pieces of image edge detection software are used for denoising the three pieces of images in parallel respectively; carrying out edge detection on concave and convex areas in the denoised image in parallel respectively, and judging whether a real edge exists on the high-voltage cable insulating layer corresponding to the denoised image or not, so as to judge whether the surface flatness of the corresponding high-voltage cable insulating layer meets the requirement or not; and the result judgment software carries out comprehensivejudgment according to the three results. According to the invention, the speed and the judgment accuracy can be improved.

Description

technical field [0001] The invention relates to a computer-based method for detecting the surface smoothness of a cross-linked polyethylene insulating layer of a high-voltage cable, in particular to a method for detecting the surface smoothness of an insulating layer based on an edge detection algorithm. Background technique [0002] In the urban power supply system, high-voltage cables, as the main method of electric energy transmission, play a vital role in the safe and stable transmission of electric energy. Since high-voltage cables are often used in underground power grids or underwater power transmission in rivers and lakes, they are often affected by geological environments or external forces. Factors, therefore, have higher requirements for the production process of the cable. At present, high-voltage cables are mainly made of XLPE. XLPE insulated cables are suitable for power transmission and distribution lines with power frequency AC voltage of 500KV and below. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00G06T7/13
CPCG06T7/0006G06T7/13G06T2207/30172G06T5/70
Inventor 宋强林志波劳卫伦梁林森索智鑫陈凌剑刘珍兰
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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