Detection method for loose strand defects of transmission wire based on visible light image

A transmission wire and defect detection technology, which is applied in the direction of detecting faults according to conductor types, fault locations, and information technology support systems, can solve the problem of few scattered strands of transmission wires, and achieve the effect of simple principle

Active Publication Date: 2020-05-22
XI'AN POLYTECHNIC UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, there are few studies on the detection of loose strands of transmission wires using digital image processing technology.

Method used

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  • Detection method for loose strand defects of transmission wire based on visible light image
  • Detection method for loose strand defects of transmission wire based on visible light image
  • Detection method for loose strand defects of transmission wire based on visible light image

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Embodiment Construction

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] The present invention is based on the visible light image detection method for the defect of the scattered strands of the transmission wire, and its flow chart is as follows figure 1 As shown, the specific steps are as follows:

[0039] Step 1. Use the inspection robot equipped with a high-definition pan-tilt camera to collect images of power transmission wires (that is, take images of visible light transmission wires);

[0040] Among them, the optimal shooting focal length is determined by continuously adjusting the shooting angle of the high-definition pan-tilt camera, so as to ensure that the inspection robot collects clear information about the outline of the transmission wire and the lines on the surface during the inspection process.

[0041] Step 2. Perform image grayscale, image enhancement, and image filtering processing on t...

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Abstract

The invention discloses a loose-strand defect detection method for a power transmission line based on a visible light image, and the method comprises the steps: mainly taking a robot as a routing inspection carrier, and collecting a visible light wire image of the power transmission line through a high-definition PTZ camera on the robot; extracting the boundary contour of each strand of the wire through image preprocessing, image segmentation and subpixel edge extraction algorithms, and then determining final suspected loose strands of the wire according to the direction angle and circular degree of each strand of the power transmission line through analyzing the arrangement features and distribution relation of the surface strands of the power transmission line; and judging the position of a loose-strand fault of the power transmission line through the distances between the suspected loose strand and the contour lines of the adjacent strands at two sides of the suspected loose strands. The method provided by the invention is simple in principle, is visual and easy, achieves the intelligent detection of the conditions of the damages and faults of the power transmission line through the image processing technology, and provides a new idea for the detection of the fault of the power transmission line.

Description

technical field [0001] The invention belongs to the technical field of transmission line fault detection, and in particular relates to a detection method for loose strand defects of transmission wires based on visible light images. Background technique [0002] As an important part of the power system, the transmission wire is responsible for the important responsibility of transmitting and distributing electric energy, and is the main artery of the transmission line. With the continuous development of the power system, more and more large-capacity and long-distance transmission lines have been erected. However, since the transmission lines are often erected in the field, they not only have to bear the effect of their own mechanical load, but also are subject to wind force to generate breeze vibration and galloping. At the same time, it will also be affected by various environmental factors, and even construction damage. These factors may lead to loose strands or broken stra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/08
CPCG01R31/085Y04S10/52
Inventor 黄新波张慧莹张烨刘新慧杨璐雅刘成
Owner XI'AN POLYTECHNIC UNIVERSITY
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