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Method and device for detecting icing thickness of power transmission line

A technology of ice coating thickness and power transmission line, which is applied in the field of power transmission and can solve problems such as the inability to effectively detect image edge information.

Active Publication Date: 2013-04-17
DATONG POWER SUPPLY BRANCH SHANXI ELECTRIC POWERCO +1
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Problems solved by technology

However, the current image detection algorithm is susceptible to noise, often detects false edges, and cannot effectively detect the edge information of the image.

Method used

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  • Method and device for detecting icing thickness of power transmission line
  • Method and device for detecting icing thickness of power transmission line
  • Method and device for detecting icing thickness of power transmission line

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specific Embodiment

[0153] In a specific embodiment of the present invention, the ice-covered thickness detection technology of the transmission line in the present invention is used to process the on-site snow and ice accumulation images of insulator strings to calculate the ice-covered thickness at that time.

[0154] Specifically, after image grayscale is performed on the collected wire and insulator images, the results are as follows image 3 a and image 3 as shown in b. Since the collected images are affected by factors such as weather and light, noise will inevitably be introduced during the collection process. After multi-scale open-close filtering, the edges of the image are well protected and the background is blurred. The results are respectively Such as Figure 4 a and Figure 4 as shown in b. After further performing MMN operator on the image to extract the edge of the image, the processing results are as follows: Figure 5 a and Figure 5 as shown in b. Finally, after binariz...

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Abstract

The invention discloses a method and a device for detecting the icing thickness of a power transmission line. According to the method and the device, the advantages of morphology in image edge detection are utilized, and filtration and CB morphology edge processing are carried out on collected power transmission line icing images, so that noises are filtered out, meanwhile the edge information of the images can be accurately and effectively detected, and the calculation of the icing thickness of the power transmission line is realized. The technology is simple in principle, is visual and practicable, reliable in detection, and is not influenced by the transducer sensitivity and a selected mechanical model, so that beneficial efforts of morphologically measuring the icing thickness are performed, and a new detection technology is provided for the safe and stable operation of the power transmission line.

Description

technical field [0001] The invention relates to the technical field of electric power transmission, in particular to a method and a detection device for detecting the ice coating thickness of a power transmission line. Background technique [0002] Due to our country's vast territory and complex terrain, icing of transmission lines is relatively common in our country, and icing disasters have occurred in many areas of our country. Among them, the areas with the most serious ice cover are mainly concentrated in Hunan, Hubei, Guizhou, Jiangxi, Yunnan, Sichuan, Henan and other provinces. Icing will cause problems such as conductor galloping, tower tilting and collapse, line tripping and short-circuiting, and insulator flashover, which will seriously affect the safe and stable operation of the power grid. The severe ice and snow disasters in the south around the Spring Festival in 2008 caused huge economic losses and seriously affected the normal life of the people. [0003] T...

Claims

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Application Information

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IPC IPC(8): G01B11/06
Inventor 逯海军高明王启银施俊国王晓强
Owner DATONG POWER SUPPLY BRANCH SHANXI ELECTRIC POWERCO
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