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Transmission line ice coating status detection method based on image

A state detection, transmission line technology, applied in the power system transmission line icing overrun alarm, image-based transmission line icing state detection field, can solve the problem of the adverse impact of transmission line identification, to achieve safe operation intuitive and Intelligent effect

Inactive Publication Date: 2011-04-20
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the power line image is affected by factors such as dust, light, camera debris adhesion, and CCD performance when shooting in the open air, the power line image itself contains certain noise, which will adversely affect the power line recognition

Method used

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  • Transmission line ice coating status detection method based on image
  • Transmission line ice coating status detection method based on image
  • Transmission line ice coating status detection method based on image

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Experimental program
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Embodiment Construction

[0055] In the present invention, the anisotropic diffusion smoothing filter is used as an image preprocessing method, and the potential area of ​​the transmission line is extracted by using edge gradient information as an effective feature of the transmission line target, and can be effectively identified by combining image morphology and image segmentation Transmission line body, and calculate the thickness of its icing, so as to further realize the overrun alarm of icing on the transmission line. Such as figure 1 As shown, the specific processing flow is as follows:

[0056] (1) The image acquisition step is to acquire the iced image of the transmission line to be processed and the corresponding uniced image of the transmission line from the imaging device respectively. figure 2 Shown is an icing image of a transmission line, image 3 shown is figure 2 The corresponding power line is not covered with ice;

[0057] (2) In the image preprocessing step, due to the influen...

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Abstract

The invention relates to a transmission line ice coating status detection method based on image, belonging to the digital image identification field and aiming at overcoming the problem of the existing method and improving automation and accuracy of transmission line ice coating status detection. The invention is used for ice coating overrun alarming of transmission line of power system. The method sequentially includes: (1) image acquiring step; (2) image preprocessing step; (3) transmission line body identifying step; (4) transmission line ice coating thickness calculating step; (5) transmission line ice coating overrun alarming step. The invention introduces digital image identification method into transmission line ice coating status detection, image information is utilized to automatically identify the ice coating thickness of the transmission line, thus further realizing overrun alarming of transmission line ice coating. The invention provides a new visual and intelligentized means for safe operation of power system.

Description

technical field [0001] The invention belongs to the field of digital image recognition, and in particular relates to an image-based method for detecting the icing status of power transmission lines, which is used for alarming over-limit icing of power transmission lines. Background technique [0002] Icing of transmission lines is a huge hazard. Every year, there are many accidents such as downed poles and broken lines caused by icing of transmission lines all over the world, which brings great inconvenience to social production and life, and also causes huge economic losses. my country is one of the countries most severely affected by ice-covered disasters. From mid-January to early February 2008, southern China was hit by four consecutive extreme weather processes of low-temperature rain, snow and freezing, which brought great damage to power facilities, and affected the power transmission and distribution systems of 13 provinces (autonomous regions and municipalities). T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/06G06K9/54
Inventor 曹治国肖阳马舒庆卓问段西尧鄢睿丞熊嶷
Owner HUAZHONG UNIV OF SCI & TECH