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Products : Transportation Sector (Rail Road Application) : LED Display Systems : On Board Application: Public Address/Passenger Information System (Metro and Railways)

  Public Address/Passenger Information System (Metro,Main Line & Suburban Railways)
Product Details

Autometers Alliance Ltd offers a state of the art Public Address and Passenger Information System (PA/PIS) for the use in modern Rail/Road transportation systems. This microprocessor-based electronic system comprises of Audio and Visual equipments and a Central Control Unit.

The PA/PIS closely integrates the audio and visual functions for conveying the desired information to passengers. The central control unit controls these functions. The system generally consists of::

A. Visual Equipment

Visual equipment, consisting of saloon displays and head code displays, conveys journey-related information for the convenience of passengers, both on the platform and inside the train. Based on the proven hardware and software concepts and made of ultra bright/multi-coloured LEDs, these equipment are installed at suitable locations in the train/bus to give clear visual display. These displays can be customised with regard to their sizes, ambient lighting conditions and mounting locations. The central control unit of the passenger information system drives these displays.

B. Audio equipment

Audio equipment are used for automatic and manual announcements to passengers travelling in the train. It can also be integrated with centralised traffic controller station through radio links/GSM for emergency messages.

This equipment generally comprises of:

  1. Driver interface unit.
  2. Public address system.
  3. Automatic voice announcement unit.
  4. Passenger to driver interface unit.
  5. Fist/Gooseneck microphone.
  6. Power amplifier unit featuring automatic gain adjustment according to ambient noise conditions.

C. Central control unit

This customised electronic unit is the heart of the system and deals with the basic audio, autoannouncing and interfacing of critical functions identified by the user, like train wire interface, GSM/GPS interface, train radio interface, etc. It can be designed according to the customer application and requirements. It contains a user interface, allowing data input in the form of route data base, timetable, audio visual messages, GSM & GPS interface, interfacing with vehicle computer and signalling systems, and the like.

Salient Features

  • Public address throughout the train.
  • Cab to cab communication.
  • Passenger emergency alarm communication.
  • Automatic Route Information and Stopping pattern.
  • Standard Operational messages.
  • Automatic Announcement using pre-recorded messages.
  • Automatic volume control of loudspeaker according to ambient noise.
  • Automatic brightness control of external displays according to ambient light conditions.
  • Audio recording in the driver cab for all types of audio conversation.
  • Audio link between the driver and control.
  • Train radio interface.
  • GPS interface.
  • Redundant support for Power Supply and Controller Card.
  • Fault data recording and downloading.
  • Power amplifier to drive loudspeakers with graphic equaliser function.
  • Playback of Background Music with priority scheduling.
Applications

A. Visual functions

  • Saloon Displays: Installed inside the train to display journey related messages.

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  • External Displays: Installed in the Front and Rear Side of the train to Display the train number and/or destination and station information.

B. Audio functions
  • Passenger Address: Automatic pre-recorded Announcements; manual Announcements by the Driver; and Emergency Announcements both by the Driver and the control room.
  • Communication: Cab to cab communication and Driver to individual passenger communication .
  • Warning/Alarm: Passenger Alarm warning tone and Door opening/closing chime.
Technical Specifications

Main controller 19” rack compatible unit (Automatic Voice Announcement Unit/Passenger Information Controller) for controlling of overall operation of the complete public address/passenger information system
Audio database storage In Flash memory card
Visual unit data base storage In onboard flash memory chips
Driver interface Through 16-key keypad and 192 x 64 pixel LCD graphic display of main operating panel fitted in driver cab
Passenger communication    mode Public address, cab to cab communication & passenger communication may be selected through main operating panel
Power amplifier IP-54 rated aluminium extrusion module featured with automatic sound level adjustment functions. Suitable to drive loudspeakers in the coach
Displays External display units for train/route No. and destination station name, fitted on driver’s windscreen, employing ultra-bright and wide-view angle LEDs. Internal display units for journey message display for passengers inside the coaches employing multi-colour LED modules.
Operating Power Supply 110V DC
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