• On the afternoon of October 17, Shanghai Metro Line 18 held a roll-off ceremony at CRRC Zhuji.  The project train is currently the highest level fully automatic driving train (GoA4) unattended during the whole process.Shanghai Metro Line 18 was initially equipped with 50 vehicles and adopted the national standard 6-section A-type car group, with a maximum speed of 80km/h.Beihai Communication provided on-board passenger information system for Shanghai Line 18 trains. For the GoA4 level, the passenger information system can adapt to a variety of scenarios for linkage, and it fully considers reliability and redundancy. The passenger information system of this project uses a highly redundant ring Ethernet architecture, with dual switches for each vehicle and power supplied separately...
    2019 - 12 - 26

Public Address system (PA)

日期: 2014-07-01
浏览次数: 204

Digital Public Address System including:


The Main line Broadcast System, Depot /Parking Lot Broadcast System

The Main line Broadcast System includes Central Broadcast System and Station Broadcast System. The broadcast system is connected to Ethernet transmission network in control centers, stations, depots / parking lots, and realizes the dynamic exchange of all kinds of information through TCP/IP protocol.


Public Address system (PA)


System Device Topological Graph

Public Address System can provide the following functions:


Public Address system (PA)


Central Broadcast Function
Station Broadcast Function
Automatic Inbound Broadcast 
Automatic Broadcast Computer Function

Emergency Broadcast Function
Station Monitoring Function
Automatic Volume Control Function 
Parallel Broadcasting Function
Priority Broadcast Function 


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