Method for detecting proper installation or reversed installation of carrier cable base of railway overhead line on the basis of image

A load-bearing cable seat and detection method technology, which is applied in image enhancement, image analysis, image data processing, etc., can solve the problems of high-speed railway train safety hazards, cable-stayed cable slipping, and load-bearing cable seat detection openness, etc., to achieve detection speed Fast, less labor cost, high detection efficiency

Active Publication Date: 2017-03-08
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

If the load-bearing cable seat is installed upside down, when affected by factors such as vibration, the cable-stayed wire will easily slip from the hook, which will cause a very large safety hazard to the operation of high-speed railway trains
At present, in addition to manual inspection, there is no relevant technology to disclose the detection of the load-bearing cable seat

Method used

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  • Method for detecting proper installation or reversed installation of carrier cable base of railway overhead line on the basis of image
  • Method for detecting proper installation or reversed installation of carrier cable base of railway overhead line on the basis of image
  • Method for detecting proper installation or reversed installation of carrier cable base of railway overhead line on the basis of image

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Experimental program
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Effect test

Embodiment 1

[0045] The image-based method for detecting whether the load-bearing cable seat of a railway catenary is reversed or not is characterized in that the method steps are as follows:

[0046] Step 1: Input the original image of the cable seat and make it into a matching template after denoising;

[0047] Step 2: Take a test image of the cable seat;

[0048] Step 3: Select the captured cable seat detection image, compare and match with the matching template after denoising, to realize the rough positioning of the detection image;

[0049] Step 4: For the successfully matched detection image in the third step, first perform the rotation and zoom processing, and then perform the normalization processing of the cable seat. After the processing is completed, crop the hook image of the cable seat;

[0050] Step 5: Detect the direction of the hook;

[0051] Step 6: Detect the direction of the diagonal cable connected to the hook;

[0052] Step 7: Determine whether the load-bearing cable seat is reve...

Embodiment 2

[0055] This embodiment is further improved on the basis of embodiment 1. The specific detection method of the hook direction in the step 5 is: perform gray-scale vertical projection of the hook image to obtain the gray value in the vertical direction of the image. The superimposed value of the vertical gray projection on the left of the hook image center is greater than the vertical gray projection superimposed value of the right, indicating that the opening direction of the hook is on the right; on the contrary, if the superimposed value of the vertical gray projection on the left of the center of the hook image If it is smaller than the vertical gray projection superimposition value on the right, it means that the opening direction of the hook is on the left.

[0056] The specific detection method of the hook direction in the sixth step is to detect the edge of the hook image where the load-bearing seat is located by using a Gauss-based line segment detection method, extract the...

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Abstract

The invention discloses a method for detecting the proper installation or the reversed installation of the carrier cable base of a railway overhead line on the basis of an image. The method comprises the following steps of: S1: inputting an original image of the carrier cable base, and manufacturing a matching template after denoising is carried out; S2: shooting a detection image of the carrier cable base; S3: selecting the shot detection image of the carrier cable base, carrying out comparison matching with the matching template after the detection image is denoised, and realizing the rough positioning of the detection image; S4: firstly, carrying out rotary scaling processing on the detection image which succeeds in matching, then, carrying out normalization processing on the carrier cable base, and carrying out clipping to obtain the hook image of the carrier cable base after the carrier cable base finishes being processed; S5: detecting a hook direction; S6: detecting the direction of an inclined stay wire connected with the hook; and S7: according to the direction of the hook and the direction of the inclined stay wire, judging whether the carrier cable base is reversely installed or not. The method has the advantages of being safe, reliable, low in manpower cost, high in detection efficiency and low in operation cost, and a fatigue and drowsiness phenomenon can be avoided during night work.

Description

Technical field [0001] The invention relates to the field of railway catenary detection, in particular to an image-based method for detecting whether a railway catenary bearing cable seat is reversely installed. Background technique [0002] At present, the inspection of the high-speed rail catenary is mainly carried out by manual night climbing operations. This method not only has higher requirements for the operators, but also is not safe and reliable enough, the inspection speed is slow, and the efficiency is low. The load-bearing cable seat of the catenary is the main component related to whether the contact network can safely realize its corresponding function for a long time. Whether it is installed against whether the load-bearing cable seat and the cable stay are balanced in force and whether the cable stays Easy to fall off has a considerable impact. If the load-bearing cable seat is installed reversely, when it is affected by factors such as vibration, the cable stays...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T3/40G06T3/60
CPCG06T3/4084G06T3/60G06T7/0004G06T2207/10004G06T2207/20016G06T2207/20068
Inventor 王翠娟刘军陈奇志王倩
Owner 成都交大光芒科技股份有限公司
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