Passenger Information System of Metro
▍System features
● | All-digital PIS and digital/analog PIS are available; backbone communication network applied with digital transmission technology to improve the poor anti-interference of analog signal. |
● | Industrial Ethernet coupling ring network technology to eliminate the network collapse caused by single-node failure. |
● | System redundancy self-healing technology to ensure the smooth broadcasting, intercom and alarm when master controller fails. |
● | Network technologies such as VLAN, multicast and QoS to keep different business isolated and intercommunicating and ensure the priority. |
● | Advanced Linux software operation system, Mpeg4/H.264 digital multimedia display system with high compression ratio coding technology and multi-zone dividable screen display technology. |
● | Material uploading, editing and producing, transmission and display to ensure the safety throughout the information distribution. |
● | Dual-power dynamic load balance technology to ensure the stable output in severe electromagnetic interference environment. |
● | User-friendly human machine interface to provide USB2.0 or Ethernet interface for file uploading, downloading and system management, and generating log file in the excel format via multimedia information reception and display depending on the user’s demand and log deleting and clearing as per predefined period. |
● | Industrial product designs such as single chip, embedded platform with low power consumption, lightning protection, electromagnetic compatibility protection, electrostatic protection, shock prevention, moisture protection, high & low-temperature protection, corrosion prevention, none-fane design. |
● | Modular and failure self-diagnosis and other maintainable designs. |
● | External system interfaces to train control and diagnostic system (TCMS), fire alarm system (FAS), train-ground wireless network, etc. |
● | Support of PIS system application in the driverless train. |
▍Subsystems and main functions
Broadcast subsystem | |||
● | OCC broadcast to driver and saloon | ● | Full & semi-automatic and artificial broadcasting |
● | Prerecording emergency message | ● | Cab intercom |
● | Broadcast monitoring | ● | Linkage of passenger alarm and video |
● | Prior broadcast control | ● | Volume self-adjustment |
● | Video displaying with audio
| ||
Passenger information display subsystem | |||
● | Display the saloon temperature and time | ● | Display the driving direction, station name and destination |
● | Display the route, door-opening side, transfer station | ● | Display the passenger public and emergency information |
● | Display the train number, return and turn-back information | ||
Video entertainment subsystem | |||
● | Receive and play the real-time flow media from the ground PIS | ● | Play the locally pre-stored video program |
● | Centrally control and synchronously play videos of the whole train | ● | Switch the broadcast priority and link videos and broadcasts |
● | Prior broadcast control | ● | Synchronously play the video, clock, captions and station information |
CCTV subsystem | |||
● | Passenger emergency communication unit | ● | Automatic display of monitoring images of saloon |
● | OCC’s manual calling of monitoring image | ● | Real-time uploading of monitoring image to OCC |
● | Driver’s manual calling of monitoring image | ● | Cab audio recording |
● | Linkage of emergency communication unit and monitoring image | ● | On-board video recording |
Other options
