Position and Attitude Measurement for Railway Vehicles Applied in Railway Infrastructure Inspection
A new noncontact method of position and attitude measurement for moving railway vehicles based on lasers and CCD is proposed in this paper. This method provides a solution for the measurement reference problem during the kinematic safety inspection process of the railway infrastructure. The principle and realization process are introduced in this paper. By using a set of mirrors installed on the ground, lasers, CCD camera and FPGA based image processing device installed on the vehicles, the system can realize real time measurement of position and attitude between the vehicle and the ground reference. Integrated with an inertial navigation system, this method can provide a continuous measuring reference with acceptable errors during the process of kinematical inspection. The results of the experiments show that the method proposed in this paper has high accuracy, wide measurement range, simple structure, and good practical values.
attitude measurement image processing measurement reference FPGA
Wang Yao Yu Zujun Zhu Liqiang
Beijing Jiaotong University,Beijing 100044 China
国际会议
厦门
英文
1316-1321
2010-05-22（万方平台首次上网日期，不代表论文的发表时间）