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Transmission and distribution cable detection method for tunnel inspection

A technology for power transmission and distribution cables and detection methods, which is applied in the fields of computer vision and pattern recognition, can solve problems such as the lack of efficient and accurate tracking tunnel cable algorithms, and achieve the effects of enhancing adaptive changes, improving adaptability, and improving design levels

Inactive Publication Date: 2014-10-08
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

With the development of electric power industry and robot technology, some tunnel inspection robots have been successfully developed in China, but there is no algorithm for efficient and accurate tracking of tunnel cables

Method used

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  • Transmission and distribution cable detection method for tunnel inspection

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Embodiment Construction

[0019] The present invention can automatically identify the position of the cable line in the inspection image or video through the visual sensor, and the present invention will be further described through specific implementation methods below.

[0020] Such as figure 1 As shown, the transmission and distribution cable detection method for tunnel inspection includes the following steps:

[0021] 1) Set the first frame image collected by the tunnel robot when performing tasks in the tunnel as the reference map; divide the reference map into multiple cable areas, and establish an analysis interface for each divided cable area ; The divided reference image is the detection template image; the detection template image is used for subsequent three-dimensional projection on the image to be detected, so as to realize the accurate division of the cable area; the analysis interface refers to the algorithm interface for analyzing various fault indicators of the cable area;

[0022] 2)...

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Abstract

The invention discloses a detection method of power transmission and distribution cables for tunnel routing inspection, which belongs to the technical field of computer vision and pattern recognition. The method comprises the steps of: 1) setting a first frame image collected by a tunnel robot which executes a task as a reference image; dividing the reference image into a plurality of cable areas and establishing an analyzing interface for each divided cable area, and setting the divided reference image as a detection template drawing; 2) after the reference image is set, setting n frame images as a first to-be-detected image to the nth to-be-detected image collected again by the tunnel robot which executes the task, and carrying out characteristic match and projection on the first to-be-detected image to the nth to-be-detected image sequentially; and 3) updating the detection template drawing and the reference image. The detection method of the power transmission and distribution cables for tunnel routing inspection provided by the invention has the beneficial effects that automatic detection of the power transmission and distribution cables is realized in video, and an important base for automatically processing massive tunnel routing inspection videos and automatically analyzing defects of the cables is established.

Description

technical field [0001] The invention belongs to the technical field of computer vision and pattern recognition, in particular to a detection method for power transmission and distribution cables oriented to tunnel inspection. Background technique [0002] With the development of industry, the power grid in the central urban area presents the characteristics of high load density and continuous high growth. This requires the use of high-voltage, large-capacity power transmission and transformation equipment to ensure the transmission capacity of power channels and improve the utilization of power channel resources. Therefore, the use of high-voltage, large-section cable tunnel laying methods has become an inevitable choice. However, fires caused by damaged cable joints and cable body insulation in tunnels occur from time to time. The power company must regularly assign employees to inspect the cables in order to detect early damage and defects in time, arrange necessary maint...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/88H02G1/00
Inventor 柳长安孙哲吴华杨国田刘春阳
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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