Author(s)

J. Wang, B. Cai, J. Liu & W. Shangguan

Abstract

High-speed train tracing and an approach-alarming system is independent of the existing train control system, which uses the Global Navigation Satellite System and Integrated Location System for positioning to ensure the safety of trains and to prevent an accident of train collision caused by failure of the train control system. The system provides autonomous train tracing and positioning services, and sends different levels of safety alarm according to the distance between the adjacent trains. Based on the performance testing conducted on HanYi Railway of China (from Wuhan to YiChang), the requirements, architecture and working principle of the system, as well as the purpose, conditions, scene setting and process of the testing are expounded in this paper. According to three function indexes including the judgment of the train’s position, analysis of the train’s running mode and its transforming, plus the state of alarming and its transforming, the test data have been analyzed and discussed. At the end, the evaluation and conclusion of the testing are provided with a further discussion on the deficiency of and remedial measures for the system. Keywords: high-speed train, tracing and approach-alarming, GPS, DGPS.

Keywords

high-speed train, tracing and approach-alarming, GPS, DGPS.