Rail Flatness and Verticality Measurement System Based on Ruler Model

作     者：YANG Haima ZOU Xinglin ZHOU Zhendong ZHANG Dawei YANG Yutuan LI Jun QIAN Longping JIANG Shenghua YANG Haima;ZOU Xinglin;ZHOU Zhendong;ZHANG Dawei;YANG Yutuan;LI Jun;QIAN Longping;JIANG Shenghua

作者机构：School of Optical-Electrical and Computer EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China Shanghai Ruinu Machinery CropShanghai 200120China 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：2020年第25卷第6期

页      面：547-554页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 080402[工学-测试计量技术及仪器] 0835[工学-软件工程] 081002[工学-信号与信息处理] 

基　　金：Supported by the National Natural Science Foundation of China(U1831133) Shanghai Natural Science Foundation(17ZR1443500) Baoshan Science and Technology Innovation Special Fund(17-C-21) 

主　　题：laser profiler point cloud splicing verticality measurement flatness measurement rail quality evaluation ruler model non-contact 

摘      要：Currently,the manual contact rail measurement that was basically adopted in China has low detection efficiency,poor accuracy and poor *** order to improve the function of the system,we propose a non-contact measurement method based on the flatness and verticality ruler *** flatness measurement model was built by employing the string measurement *** addition,the verticality measurement model was built by the dihedral method to measure the rail *** extracting curvature information of feature points,in this system,each laser sensor is used to collect rail profile curves.A large number of three-dimensional point clouds data are generated by the unit quaternion method of coordinate transformation,and the contour curves of the characteristic points of the four laser sensors are matched with the corresponding point sets one to one,and the rail contour splicing is finally *** experimental results show that this method has better measurement effect compared with the traditional manual measurement method.