Research on Absolute Positioning System for High-speed Maglev Train

In the high-speed Maglev system, accurate real time information of the train position is essential for stable, safe and efficient train operation. To detect the absolute location of the Maglev train, a detection scheme was proposed based on electromagnetic induction theory. In this scheme, the absolute position of the maglev train was detected by using on-board flag readers to collect the encoded digital data on the wayside location reference flags in redundant manner. A prototype absolute positioning system has been successfully developed. The hardware structure of the system, as well as its working principle was described. The logical decoding process of vehicle location information in the digital decoding module is analyzed in details. The experiments show that the proposed scheme is feasible. The locating system performs with high reliability and accuracy, which can be put into practice.