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Non-contact sleeper positioning method under tamping operation

A positioning method and non-contact technology, applied in image analysis, instruments, calculations, etc., can solve the problems of unstable state of the pick, high measurement methods, and high labor input, and achieve reduced work intensity, small work errors, and automation. high degree of effect

Inactive Publication Date: 2019-07-05
YUNNAN MINZU UNIV
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Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a non-contact sleeper positioning method under tamping operation to solve the problems of high error rate, high manual investment, high investment cost and unstable state of the lower pick in the existing track line sleeper position measurement method engineering technical problems

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  • Non-contact sleeper positioning method under tamping operation
  • Non-contact sleeper positioning method under tamping operation

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Embodiment Construction

[0026] The invention provides a non-contact sleeper positioning method under tamping operation. Firstly, the industrial CCD camera collects the sleeper image of the track line, imports the sleeper image into the computer, and classifies and stores the image according to the image number to form an image database. At the same time, the frame grabber records The driving state of the test vehicle under the current railway line to ensure the normal progress of the test collection work; secondly, use the MATLAB software to call the image in the image database for preprocessing of the sleeper positioning; thirdly, first use the image cropping operation to cut the target in the sleeper image area; secondly carry out binarization operation to target area, select rectangular structure element and binarization result to do opening operation; the 4th, in addition, do eight connected operation to described opening operation result, carry out RGB mark simultaneously, then Use the center of ...

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Abstract

The invention discloses a non-contact sleeper positioning method under tamping operation, which comprises the following steps of calling a sleeper image in an image database by using MATLAB software,cutting the sleeper image by using an image cutting operation to obtain a target area of the sleeper image, and performing a binarization operation on the obtained target area; selecting a rectangularstructure element and the binarization result to carry out open operation; in addition, carrying out the eight-connection operation on the opening operation result, and carrying out the RGB marking at the same time, and then carrying out the sleeper image mass center marking on the opening operation result through a mass center method; and processing the image data according to a sleeper positioning algorithm to obtain a positioning result, and meanwhile, recording a driving state monitoring result by a frame grabber, so that the technical problems that an existing railway line sleeper positioning mode is high in error rate, high in input cost and unstable in tamping operation state are solved.

Description

technical field [0001] The invention relates to the field of railway line tamping vehicle operations, in particular to a non-contact sleeper positioning method under tamping operation. Background technique [0002] At present, the structure of most railway lines in my country mostly adopts ballasted track. The main feature is that the foundation under the rail adopts a loose-grained ballast bed. The tamping of the ballasted bed of the railway is to use the tamping pick in the tamping device to tamp the sleeper. The gap between the ballast bed and the ballast bed is compacted to make the ballast bed flat and dense, improve the stability of the track, and ensure the safe operation of the railway. [0003] The tamping of the ballasted track is usually done by a large-scale road maintenance mechanical tamping vehicle, and the tamping vehicle needs to determine the position of the pick in advance during the operation process. Once the positioning is wrong, the pick may damage the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/66G06T7/12G06F16/50
CPCG06T7/66G06T7/12
Inventor 吴海锋高萌
Owner YUNNAN MINZU UNIV
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