Volume 36 Issue 9
Sep.  2010
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Sun Junhua, Wang Weihua, Liu Zhen, et al. Rail wear measurement method based on structured-light vision[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(9): 1026-1029. (in Chinese)
Citation: Sun Junhua, Wang Weihua, Liu Zhen, et al. Rail wear measurement method based on structured-light vision[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(9): 1026-1029. (in Chinese)

Rail wear measurement method based on structured-light vision

  • Received Date: 16 Jul 2009
  • Publish Date: 30 Sep 2010
  • The principle of rail wear measurement based on structured-light vision was analyzed. A method for dynamically measuring rail wears in vehicle-mounted was proposed. The structured-light vision sensor was installed at the bottom of the train, and the section profile of the rail was measured. Taking rail waist as measurement benchmark, the rotation matrix and translation vector between light-plane coordinate frame and designed coordinate frame were estimated by iterative closest point (ICP) algorithm, then, the rail waist profile was registered to designed profile, based on which the rail wears were calculated. Compared with previous methods, the proposed method does not need a specially vision sensor to measure the benchmark. Benchmark measurement and wear measurement are achieved with one same vision sensor. System cost is effectively reduced, and it is operable. Measurement accuracy is also guaranteed due to no need of global calibration of multi-sensor. The experimental results show that the repeatability precision of the method is high.

     

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  • [1] 丁大尉,纪淑波,王立志.光电式钢轨磨损实时检测系统[J].中国铁道科学,2006,27(1):64-67 Ding Dawei,Ji Shubo,Wang Lizhi.Photoelectric real-time detection system for rail abrasion[J].China Railway Science,2006,27(1):64-67 (in Chinese) [2] Alippi C,Casagrande E, Scotti F,et al.Composite real-time image processing for railways track profile measurement[J]. IEEE Transactions on Instrumentation and Measurement,2000,49(3):559-564 [3] 何红涛,何长江,李华文,等.应用微机图像处理技术实现钢轨磨耗自动测量的研究[J].铁道学报,1994,16(4):43-49 He Hongtao,He Changjiang, Li Huawen,et al.Application of image procession to realizing the research of the automatic measurement of rail wear[J].Journal of the China Railway Society,1994,16(4):43-49(in Chinese) [4] Jin Wenrui,Zhan Xingqun,Jiang Benhe.Non-contact rail-wear inspecting system based on image understanding //Proceedings of the 2007 IEEE,International Conference on Mechatronics and Automation.Harbin: ,2007:3854-3858 [5] Zhang Z Y,Member S.A flexible new technique for camera calibration[J].IEEE Transactions on Pattern Analysis and Machine Intelligence,2000,22(11):1330-1334 [6] Zhou Fuqiang,Zhang Guangjun.Complete calibration of a structured light stripe vision sensor through planar target of unknown orientations[J].Image and Vision Computing,2005,23(1):59-67 [7] 孙军华,张广军,刘谦哲,等.结构光视觉传感器通用现场标定方法[J].机械工程学报,2009,45(3):174-177 Sun Junhua,Zhang Guangjun,Liu Qianzhe,et al.Universal method for calibrating structured-light vision sensor on the spot[J].Journal of Mechanical Engineering,2009,45(3):174-177(in Chinese) [8] Besl P J,McKay N D.A method for registration of 3-D shapes[J].IEEE Transactions on Pattern Analysis and Machine Intelligence,1992,14(2):239-256 [9] 铁运 [2006] 146号 铁路线路修理规则[S] Ministry of railways [2006] 146 Rails of Chinese railway maintenance[S](in Chinese)
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