The integrated monitoring system for rail transit and the switching method for the main and backup control centers

Jing Song, Changkai Zhang, Xun Che

Abstract: The integrated monitoring system for rail transit is a highly complex control and supervision system used for the regulation and control of various facilities and services in the rail transit network. Due to its high requirement for reliability, it is necessary to establish both a primary and a backup system. When the primary system encounters issues, the backup system takes over the line control authority. When the primary system recovers, the backup system returns the line control authority. However, existing switching methods suffer from issues such as poor reliability and low stability, seriously affecting the safe operation of rail transit. We propose a switching method for the integrated monitoring system and the main and backup control centers of rail transit, aiming to improve the reliability and stability of the integrated monitoring system. Firstly, we establish primary and backup monitoring systems with consistent software and hardware, which operate independently and simultaneously, providing the basic conditions for reliable and stable switching. Secondly, we construct a line control authority switching method that effectively enhances the timeliness of line monitoring during primary system failures through automatic switching of line control authority. Finally, we demonstrate the advantages of our proposed method in terms of stability and reliability through a case study based on real scenarios.