Oct. 2018

Article Contents

Chinese Optics> 2018> 11(5): 841-850.

ZHU Xiang, SHAO Shuang-yun, SONG Zhi-jun. A detection method based on line-structured light sensor for geometrical morphology of track slab[J]. Chinese Optics, 2018, 11(5): 841-850. doi: 10.3788/CO.20181105.0841

Citation:

ZHU Xiang, SHAO Shuang-yun, SONG Zhi-jun. A detection method based on line-structured light sensor for geometrical morphology of track slab[J].Chinese Optics, 2018, 11(5): 841-850.doi:10.3788/CO.20181105.0841

Citation:

ZHU Xiang, SHAO Shuang-yun, SONG Zhi-jun. A detection method based on line-structured light sensor for geometrical morphology of track slab[J].Chinese Optics, 2018, 11(5): 841-850.doi:10.3788/CO.20181105.0841

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A detection method based on line-structured light sensor for geometrical morphology of track slab

doi:10.3788/CO.20181105.0841

School of Science, Beijing Jiaotong university, Beijing 100044, China

Funds:

the National Key Research and Development Program of China2017YFC0805406

More Information

Corresponding author:SHAO Shuang-yun, E-mail:shao_sy@tom.com
Received Date:04 Feb 2018
Rev Recd Date:21 Mar 2018
Publish Date:01 Oct 2018

Abstract

Abstract

The dimensional accuracy of track slab plays an important role in ensuring the quality of the high-speed railway track. Aiming at the problems existing in the pressent track slam detection methods, we establish a track slam measurement system based on line-structured light sensor and propose a geometric parameter measurement method based on track slam point cloud data. The line-structured laser sensor scans the CRTS Ⅲ type track slab at regular intervals to obtain point cloud data. The position and attitude of the entire point cloud data are corrected by using the point cloud data at a special position in the track slam. Finally, according to the definition of the characteristic parameters, the rapid non-contact measurement of four key geometric parameters of track slab is realized. The experimental results show that the measurement accuracy of this proposed method can reach 0.2 mm, which meets the on-line detection requirements of track slabs.
- laser 3D measurement,
- CRTS Ⅲ track slab,
- position and attitude correction,
- bearing surface

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References (16)

References

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