Research On The Safety Technology Of Rail Communication In Nanjing Metro Line 4

With the development of China’s high-speed economy,the urban rail transit system is developing rapidly,and one of the important components of the electromechanical equipment of urban rail transit is the urban rail transit signaling system.The stable development of urban rail transit signaling system is based on the rapid development of microelectronics,computer and communication systems.The subway system consists of train automatic control(ATC)system,depot signal system and integrated base signal equipment.The core is the train automatic control(ATC)system,which consists of the train automatic monitoring(ATS)subsystem,the train automatic protection subsystem,the computer interlock(CI)subsystem and the train automatic operation(ATO)subsystem.Automatic train protection(ATP)subsystem for the safety of ATCsystem core,is responsible for the safety of the train interval,overspeed protection,and exit doors and platform of safety monitoring system of safety equipment.In this paper,we study the nanjing rail line 4 communication system security communication security,automatic arrangement into the road performance of the system,focusing on the analysis of automatic protection system in the actual operation of the train.Through a series of communication systems such as wireless communication and train location,the operation of nanjing metro line 4 can be safely and guaranteed.