应用于铁轨平直度检测的激光测量系统的研究

基金项目:

国家自然科学基金资助项目(50775172)

详细信息

Laser measurement system for rail linearity

1.
Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China;
2.
Graduate School, Chinese Academy of Sciences, Beijing 100039, China;
3.
Xi'an Jiaotong University, Xi'an 710049, China

摘要: 为了能够对铁轨的平直度参量进行精确测量,设计了一种基于自准直原理的嵌入式激光测量系统,其检测系统主要由图像采集和传输模块、图像处理和数据处理模块及激光测距模块组成,系统将接收的光斑图像通过一系列图像处理后,将距离参量和图像参量带入自准直算法中,求得铁轨平直度偏移量,并能够保证其测量精度在0.3mm.结果表明,该系统可以在一定程度上代替传统的轨道测量方法,使得测量过程更加简便、精确.
- 测量与计量 /
- 准直测量 /
- 灰度重心算法 /
- 动态阈值分割 /
- 铁轨平直度
Abstract: In order to measure the rail linearity accurately,an embedded laser detection system,composed of image acquisition and transmission module,image processing and data-processing module,laser range module,was designed based on autocollimation theory.After a series of image processing,the images and distance parameters were sent to the autocollimation algorithm,and the rail linearity offset can be obtained with a measuring accuracy of 0.3 mm.The system can replace the traditional manner of rail detection,also make the detection process more simple and accurate.
- measurement and metrology /
- autocollimate measurement /
- grey centroid /
- dynamic threshold segmentation /
- rail linearity

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