Title :
Research and design of railway clearance measurement system based on non-contact sensors
Author :
Yu, Liu ; Hongmei, Shi ; Liqiang, Zhu ; Xining, Xu
Author_Institution :
Sch. of Mech., Beijing Jiaotong Univ., Beijing, China
Abstract :
The measurement of railway clearance is the important guarantee way to the safety and the high-speed operation. A new scheme of non-contact clearance measurement method is proposed based on laser sensor in this paper. A high speed data acquisition card is designed based on FPGA, completing the laser data acquisition and clock synchronization. And an algorithm of vibration compensation is designed based on the displacement sensors for measure the error of car body vibration. The system is proved that it can complete the vibration compensation and judge the out-of-gauge point real-time under the speed of 160km/h through experiment.
Keywords :
clocks; data acquisition; field programmable gate arrays; measurement by laser beam; railway safety; sensors; synchronisation; FPGA; car body vibration; clock synchronization; displacement sensors; high speed data acquisition card; high-speed operation; laser data acquisition; laser sensor; noncontact sensors; railway clearance measurement system; vibration compensation; Extraterrestrial measurements; Measurement by laser beam; Rail transportation; Sensor systems; Synchronization; Vibrations; checking of clearance; clock synchronization; vibration compensation;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2010 8th World Congress on
Conference_Location :
Jinan
Print_ISBN :
978-1-4244-6712-9
DOI :
10.1109/WCICA.2010.5554240
