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Automatic detection method of track turnout notch

An automatic detection and rail technology, which is used in railway vehicle shape measuring instruments, railway car body parts, railway auxiliary equipment, etc., can solve the problems of inability to eliminate interference lines, inability to detect the status of rail forks in real time, and lack of image texture detection, etc. Achieve intuitiveness and accuracy, and avoid the effect of on-site opening inspection

Active Publication Date: 2012-06-13
天津卓朗科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This detection method is only suitable for the automatic detection of instrument pointers, and cannot be applied to the detection of railway switch status at all. The reasons are: first, the acquisition equipment lacks supplementary light measures, and the quality of the photos is not available as a detection source; second, this method has not undergone image segmentation Processing, only the Hough transform detection line is applied, lack of image texture detection, the detected interference line cannot be eliminated, does not have a certain amount of information, and cannot detect the state gap of the railway switch
In short, the existing detection technology of railway switch status has the disadvantage of being unable to complete the real-time detection of the railway switch status, so as to grasp the actual status of the railway switch gap in real time

Method used

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  • Automatic detection method of track turnout notch
  • Automatic detection method of track turnout notch
  • Automatic detection method of track turnout notch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The first step is to collect the status video image of the railway track

[0057] A CCD camera with a resolution of 800*600 is used to collect video images of the status of the rails. The camera has a frame rate of 30 frames per second and uses LED supplementary light. The number of acquisitions is 8 times per day, and the length of each acquisition video image is 8 minutes;

[0058] The second step is the processing of the state video images of the collected railroad tracks

[0059] 2.1 Preparation before processing

[0060] Compress and transmit the state video image of the rail track collected in the first step to the control processing host, and calculate the conversion rate at the current computer resolution, that is, convert the pixel unit used by the computer to calculate or analyze the image into the international unit mm / per pixel, The conversion rate is 0.0776mm / pixel;

[0061] 2.2 Processing of early video images

[0062] 2.2.1 Open the video and capture t...

Embodiment 2

[0088] The first step is to collect the status video image of the railway track

[0089] A CCD camera with a resolution of 1024*768 is used to collect video images of the status of the rails. The camera has a frame rate of 35 frames per second, and uses LED supplementary light. The number of acquisitions is 10 times / day, and the length of each acquisition video image is 10 minutes;

[0090] The second step is the processing of the state video images of the collected railroad tracks

[0091] 2.1 Preparation before processing

[0092] Compress and transmit the state video image of the rail track collected in the first step to the control processing host, and calculate the conversion rate at the current computer resolution, that is, convert the pixel unit used by the computer to calculate or analyze the image into the international unit mm / per pixel, The conversion rate is 0.0776mm / pixel;

[0093] 2.2 Processing of early video images

[0094] 2.2.1 Open the video, capture the ...

Embodiment 3

[0120] The first step is to collect the status video image of the railway track

[0121] A 1440*900 resolution CCD camera is used to collect rail status video images. The camera has 40 frames per second and LED supplementary light. The number of collections is 12 times / day, and the length of each video image collection is 8 minutes;

[0122] The second step is the processing of the state video images of the collected railroad tracks

[0123] 2.1 Preparation before processing

[0124] Compress and transmit the state video image of the rail track collected in the first step to the control processing host, and calculate the conversion rate at the current computer resolution, that is, convert the pixel unit used by the computer to calculate or analyze the image into the international unit mm / per pixel, The conversion rate is 0.0776mm / pixel;

[0125] 2.2 Processing of early video images

[0126] 2.2.1 Turn on the video and capture the last frame image of the state video image co...

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Abstract

The invention relates to an automatic detection method of a track turnout notch, which relates to monitoring of track turnouts and comprises steps of collecting state video images of a track; processing the collected state video images of the track and detecting track turnout notch state; and enabling the detection of the track turnout notch state to comprise locating a slot or an anti-position slot, determining the position of the center line of the slot, calculating deviation and judging whether the left deviator or the right deviator exceeds 2mm or not to judge whether a switch machine is normally wrenched or not. The automatic detection method achieves real-time detection of the track turnout state, so that users can timely grasp actual state of the track turnout notch, and monitoringintuitive performance and detection accuracy of the track turnout notch are ensured.

Description

technical field [0001] The technical solution of the invention relates to the monitoring of railway track switches, in particular to an automatic detection method for railway track switch gaps. Background technique [0002] At present, the automatic monitoring of the state of railway turnouts in my country is still blank, and the detection of the state of railway turnouts is completely done manually, which not only consumes a lot of manpower, but also makes it impossible to carry out all-weather monitoring and real-time detection. With the improvement of railway operation speed, combined with the current situation of my country's railway development and international experience, all-weather monitoring and real-time detection of the status of railway track switches will become one of the keys to ensure the safe operation of railways. [0003] CN200995695 discloses a railway rail broken rail detection device, which is completed based on hardware circuits and has a high cost, i...

Claims

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Application Information

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IPC IPC(8): B61K9/08G06T5/00
Inventor 张坤宇岳洋
Owner 天津卓朗科技发展有限公司
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