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A state detection method and system for positioning hooks of cable-stayed wires of high-speed railway catenary

A state detection and positioning hook technology, applied in image analysis, image enhancement, instruments, etc., can solve problems such as hidden safety hazards, high risk of human observation, and missed detection, and achieve the effect of reducing hidden dangers and improving efficiency and accuracy.

Active Publication Date: 2020-02-14
成都交大光芒科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the catenary detection failure mode is manual on-line inspection during skylight operation, and the same is true for the detection of cable-stayed positioning hooks. However, due to the complex environment of the line, the high risk of manual observation, and the uneven quality of employees There will be missed detection, which will cause safety hazards

Method used

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  • A state detection method and system for positioning hooks of cable-stayed wires of high-speed railway catenary
  • A state detection method and system for positioning hooks of cable-stayed wires of high-speed railway catenary
  • A state detection method and system for positioning hooks of cable-stayed wires of high-speed railway catenary

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Embodiment

[0111] First, the image of the area of ​​interest of the catenary of each pillar of the high-speed rail line is collected by the image acquisition device. Figure 4 The image of the region of interest collected in this embodiment is shown in , the size of the image is 1000×1000, and the image includes structures such as the positioning tube 1 , the stay wire 2 and the stay wire positioning hook 3 . Afterwards, the image is enhanced, and after the enhancement, binarization is performed to obtain a binarized image. Figure 5 for will Figure 4 The binarized image obtained after binarization processing.

[0112] After the image binarization process is completed, the Figure 5 The shown binarized image is subjected to morphological corrosion processing, according to the area of ​​each connected region in the corroded image (in this embodiment, the area is the total number of pixels in the image), the rectangularity and the angle connected with the preset positioning tube The ar...

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Abstract

The invention discloses a high-speed railway overhead line system inclined stay wire positioning hook state detection method and system and belongs to the field of electrification high-speed railway overhead line system safety detection. The method comprises steps of acquiring the image of the area of interest of each pillar of the high-speed railway overhead line system in real time through an image acquisition device, wherein the image of the area of interest comprises a positioning pipe, an inclined stay wire and an inclined stay wire positioning hook; extracting a positioning hook area from the image of the area of interest, wherein the positioning hook area comprises an inclined stay wire positioning hook and an inclined stay wire; finally, dividing the positioning hook area into a left area and a right area by calculating the direction of the inclined stay wire in the positioning hook area, and determining the state of the inclined stay wire positioning hook according to the direction of the inclined stay wire and the number of connection areas between the left and right areas. The method and the system provided by the invention can effectively improve the efficiency and accuracy of the positioning hook fault detection of the inclined stay wire, provide the guarantee for the safety of the high-speed railway overhead line system, and effectively reduce the safety risk.

Description

technical field [0001] The invention relates to the field of safety detection of an electrified high-speed rail catenary, in particular to a state detection method and system for a positioning hook of a cable-stayed wire of a high-speed rail catenary. Background technique [0002] With the further development of high-speed railway transportation technology and its wide application, the high-speed railway catenary, as an important facility for providing electric energy to locomotives, has attracted more and more attention whether it is in a safe working state. The cable-stayed positioning hook is an important part of the positioning device in the catenary. Whether it is in good condition directly determines the stability of the supporting device, and then determines the normal power supply of the electric locomotive. At present, the catenary detection failure mode is manual on-line inspection during skylight operation, and the same is true for the detection of cable-stayed po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00
CPCG06T7/0004G06T2207/20036G06T2207/30108
Inventor 陈奇志王倩刘军吴限
Owner 成都交大光芒科技股份有限公司
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