| 基于机器视觉的钢轨轨头非接触测量精度研究 |
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| 引用本文： | 王纪武,张显文,高伟杰,廖方波,李建勇.基于机器视觉的钢轨轨头非接触测量精度研究[J].北方交通大学学报,2014(1):132-135. |
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| 作者姓名： | 王纪武 张显文 高伟杰 廖方波 李建勇 |
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| 作者单位： | 北京交通大学机械与电子控制工程学院,北京100044 |
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| 基金项目： | 铁道部科技研究开发计划项目资助（KMD10003531） |
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| 摘 要： | 采用基于机器视觉的三角测距原理和光取断面法,开发出将廓形上的激光点进行空间坐标转换的算法,消除了已有方法中借助标定板计算所带来的误差和操作的复杂性,提高了钢轨动态测量的精度和效率.开发了非接触式钢轨检测装置.通过对60轨打磨后轨廓的测量结果与标准廓形的分析比对,验证了开发系统的精度和性能.
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| 关 键 词： | 非接触测量 机器视觉 三角测距 钢轨轨头检测 |
Study on the non-contact measurement accuracy of the rail head silhouette based on machine vision |
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| WANG JiwuSchool of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing,China ZHANG XianwenSchool of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing,China GAO WeijieSchool of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing,China LIAO FangboSchool of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing,China LI Jianyong.Study on the non-contact measurement accuracy of the rail head silhouette based on machine vision[J].Journal of Northern Jiaotong University,2014(1):132-135. |
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| Authors: | WANG JiwuSchool of Mechanical Electronic and Control Engineering Beijing Jiaotong University Beijing China ZHANG XianwenSchool of Mechanical Electronic and Control Engineering Beijing Jiaotong University Beijing China GAO WeijieSchool of Mechanical Electronic and Control Engineering Beijing Jiaotong University Beijing China LIAO FangboSchool of Mechanical Electronic and Control Engineering Beijing Jiaotong University Beijing China LI Jianyong |
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| Institution: | WANG Jiwu(School of Mechanical,Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China) ZHANG Xianwen(School of Mechanical,Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China) GAO Weijie(School of Mechanical,Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China) LIAO Fangbo(School of Mechanical,Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China) LI Jianyong(School of Mechanical,Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China) |
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| Abstract: | Based on the laser triangulation principle and optical-section method,each laser point of rail profile in the captured image is directly transformed to real coordinates in the measurement coordinate system.In this improved algorithm,the traditional calibration plate is cut out.The calculation is simplified by this improvement,and the calculation accuracy is improved.In view of 60 kg/m rail,its rail head silhouette is measured with our developed non-contact measurement system.The experiment results show the high accuracy and capability of the developed system. |
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| Keywords: | non-contact measurement machine vision laser triangulation principle measurement of rail head silhouette |
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