Railway track defect detection method and system

A defect detection and railway track technology, applied in the direction of optical defect/defect test, measuring device, character and pattern recognition, etc., can solve problems that threaten the normal running of trains, train derailment, railway breakage, etc., and achieve the effect of convenient, fast and efficient detection

Pending Publication Date: 2020-02-11
SICHUAN UNIV
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Problems solved by technology

These defects may lead to the formation of internal defects of the rails, and even lead to rail fractures and train derailment accidents, seriously threatening the normal ru

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  • Railway track defect detection method and system
  • Railway track defect detection method and system
  • Railway track defect detection method and system

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[0067] In order to make the above objectives, features and advantages of the application more obvious and understandable, the application will be further described in detail below in conjunction with the drawings and specific implementations.

[0068] At present, there are mainly three methods for detecting defects in railway tracks: the first is manual inspection. The track department arranges inspection personnel to periodically inspect along the track and replace the damaged track. However, in actual life, the railway mileage that needs to be inspected is often very large. In order to ensure the safety along the railway, a large number of professional inspectors are often required to ensure the quality of inspections, which will consume a lot of human resources. In addition, the manual inspection method also consumes a lot of time and resources of inspection personnel, and it is impossible to perform quality inspection on inspection results. In addition, manual inspection is s...

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Abstract

The invention provides a railway track defect detection method and system. The method is applied to a railway track defect detection system. The method comprises the following steps: preprocessing anoriginal rail image to obtain a first rail image; inputting the first rail image into a rail area positioning module for processing; determining left and right boundaries of the track in the originaltrack image according to the output of the track area positioning module; segmenting a first rail image from the original rail image according to the left and right boundaries; preprocessing the firsttrack image to obtain a second track image; utilizing a preset window to slide on the second track image at a preset step length, and inputting the area image placed in the preset window into a defect classification module to obtain a defect detection result; and according to a defect detection result, framing the detected defect area in the second track image. Whether the rail has defects or notand defect types can be quickly and accurately recognized.

Description

technical field [0001] The present application relates to the technical field of railway defect detection, in particular to a railway track defect detection method and system. Background technique [0002] The railway track is an important element used for guiding the train. During the operation of the train, the track will rub against the wheels of the train, which will cause the track to vibrate, and the track will collide with the gravel of the track bed. Over the years, the track will suffer fatigue damage or wear damage, and the track will be damaged to varying degrees. For example, wear (abrasion), pit (scar), crack (crack) and corrugation (corrugation) defects occur, for details, please refer to the accompanying drawings figure 1 ,exist figure 1 Four common damaged and normal states of railway tracks are shown in . These defects may lead to the formation of internal defects of the rails, and even lead to railway breakage and train derailment accidents, which seriou...

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Application Information

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IPC IPC(8): G06T7/00G06K9/32G06K9/62G06N3/04G01N21/88
CPCG06T7/0002G01N21/8851G01N2021/8861G01N2021/8887G06V10/25G06N3/045G06F18/2431
Inventor 陈虎李小庆周颖吴志红
Owner SICHUAN UNIV
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