Design of Centralized Communication Alarm System of Urban Rail Transit

The urban rail transit communication system is a huge and complex system, which includes the power supply, TV, broadcast and transmission etc. sub-systems. The data and alarm of each subsystem are sent through a variety of different ways to the centralized alarm system, and are converted into a standard format of the alarm information, and the same clock system is adopted for each sub-system. The centralized alarm system can realize a unified management on the alarm information from the various subsystems, and can quickly locate the position of the alarm information, so as to improve the maintenance efficiency of the rail transit communication system. This paper discusses the functions of the centralized alarm system, system architecture, system principle, function design and man-machine interface design and so on in detail. The system has been applied in a number of practical projects.