passenger information system for ac & non ac coaches

PIS FOR AC & NON AC COACHES Installation And Maintenance Manual Rev 0.0 2012

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Areca Embedded Systems Pvt. Ltd. (An ISO 9001:2000 certified company)

2012

Passenger Information

System for AC & Non AC Coaches

Spec No: RDSO/PE/SPEC/AC/D/0087– 2008 (Rev. 0)

Address: Areca Embedded Systems Pvt. Ltd. #5B, Survey No 184 & 185, IDA, Cherlapally-Phase-V, Ranga Reddy District - 500 051, Andhra Pradesh, INDIA. Tel: +91 (40) 2726 3366, 2726 3367, 2726 3368 Fax: +91 (40) 2726 3369

INSTALLATION & MAINTENANCE MANUAL


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Table of Contents 1 CHAPTER 1-INTRODUCTION ................................................................................. 4

1.1 SCOPE............................................................................................................... 4

1.2 SYSTEM DESCRIPTION ................................................................................... 4

2 CHAPTER -2 ............................................................................................................ 5

2.1 Where to install? ................................................................................................ 5

2.2 How to protect the equipment? .......................................................................... 6

2.3 Description of equipment.................................................................................... 6

2.3.1 Master Display Unit...................................................................................... 6

2.3.2 Slave LED Display Display Board ................................................................ 8

2.3.3 Slave LCD Display Board ............................................................................ 9

2.4 Technical specifications ..................................................................................... 9

2.4.1 Master display board ................................................................................... 9

2.4.2 Slave LED display board ........................................................................... 10

2.4.3 Slave LCD display board ........................................................................... 11

2.5 Mechanical Specifications ................................................................................ 12

2.5.1 Master display board ................................................................................. 12

2.5.2 Slave LED display board: .......................................................................... 12

2.5.3 Slave LCD display board ........................................................................... 13

2.6 Connectivity ...................................................................................................... 14

3 CHAPTER-3 ........................................................................................................... 15

3.1 Maintenance ..................................................................................................... 15

3.1.1 Cleaning the display boards and data communication HUBs .................... 15

3.1.2 Connectivity checking. ............................................................................... 15

3.1.3 Replacing equipment ................................................................................. 15


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3.1.4 Replacing LED display cards ..................................................................... 15

3.1.5 Replacing power supplies .......................................................................... 16

3.1.6 Replacing LCD display boards .................................................................. 16


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1 CHAPTER 1-INTRODUCTION

1.1 SCOPE This document describes how to use the Master Display Unit (MDU) and Slave Display Units (SDU) and explains the functionality of the system.

1.2 SYSTEM DESCRIPTION

The Master Display Unit consists of built in Coach Processor Unit (CPU), Audio Announcement Unit, 16X112 LED display module along with the driver circuitry, menu-operation through IR and also keypad for configuring the system and DC-DC converter.

The Coach Processing Unit consists of GPS Receiver, RS 485 ports for communicating with Slave LED, LCD display units and RTTIS System, USB 2.0 compliant port for data transfer device, Interface for IR keypad, On-board non-volatile memory for storing the route related data and for messages to be displayed on display panel.

The Slave Display Board Unit consists of 16X112 LED Display Module, RS485 Interface Module and Power supply unit along with the DC-DC converter.

The System is incorporated with a Digital Audio Announcement unit having a Digital Signal Processor (DSP) and solid state memory. The Audio Announcement Unit (MDB) is capable of generating voice messages based on voice segments stored in its memory in a compressed data format. Speakers (if connected to MDB) generate voice based information which is on display.


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2 CHAPTER -2

2.1 Where to install?

The MDB & SDB are intended to be installed in AC or Non AC Coaches in passenger trains of Indian Railways. In Ac Coaches the MDB & SDB should be provided in both the end pathways of the coach, The MDB should be placed at the power panel side of the coach and the SDB should be placed at the Non power panel side, and the LCD SDB should be installed in every coach coupe where ever required by the purchaser. If necessary the Audio announcement unit also should be installed as required by the purchaser. Make sure that the units are installed in the dust free and air conditioned environment to improve the reliability of the system..

The power to the units should be given from the power panel only, all the power wiring to the units should be terminated at the power panel only and there should be no


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tapping from any other place inside the coach. The wiring for the system should be as mentioned in the schematic diagram mentioned above.

The power supply cable used should be of Electron-Beam cross-linked cable type or equivalent rated PTFE cables of Size 1.5 mm² of RDSO approved make. The wiring should be with PTFE cable wherever required and bus arrangement for RS 485 ports. The wiring should be such that to facilitate easy maintenance and safety of the operator. The housing for inside the coach should be of robust and reliable construction duly made from 0.8 mm thick CRCA sheet to IS:513, Grade O. All the above units in PI system should be inter-connected by means of WAGO/PHOENIX connectors as mentioned in the specification. The enclosure should be powder coated. Powder coating thickness should be minimum 60 microns. All the fasteners used should be of metric size only and the minimum size of hexagonal head screw should be M6. These should be of galvanized type. All the terminal boards used in the unit should be of FRP/SMC and properly secured to rigid members of the panel. The power connections to the terminal board for various units should be terminated properly taking into consideration the creepage, clearances, safety etc. All the control connections, wherever necessary, should be terminated in a terminal board with terminal studs and numbered for easy maintenance as per the scheme. The usage of plug in type connectors of any approved make should be desirable. All the units should be provided with mounting holes for fixing in the coach. The minimum size of the fixing screws should be M6 hexagonal head screw. Earthing lug should be provided on the units for external coach earthing connection. All the units should be interconnected by means of Wago Connectors of Part 261-410 and 261-411 or equivalent phoenix connectors. The keypad which is provided for the route selection of the train should be locked by means of a dome key. The GPS Antenna should be interchangeable and is mounted on the roof top of the coach. The routing for the GPS Antenna to the roof top is through inside the channels of the coach.

2.2 How to protect the equipment? While installing display boards and data communication hubs, ensure that they are properly protected. Since all this equipment is of indoor type, be sure that they are not installed in a location such that they come directly in contact with rain water etc.

Properly ground the equipment. Follow Do’s and Don’ts manual.

2.3 Description of equipment

2.3.1 Master Display Unit MDB shall be mounted in gangway either with coach ceiling or wall above doorway. Its


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Various subsystems are described as under:

Microprocessor Based Coach processor unit(CPU)

1. The Microprocessor based Coach Processor Unit consists of

a. A minimum 16-bit microprocessor based control unit.

b. GPS receiver as per this specification.

c. At least 8 MB (expandable to 24MB) of non-volatile on-board memory for storing the

route related data and for messages to be displayed on the display panel,

d. Adequate RAM for system functioning.

e. RS485 Interface for communicating with the slave display devices, LCD display

points and Digital Destination Boards (for future provision)

f. RS485 interface port for communicating with the RTTIS.

g. USB port for interfacing with a USB data transfer module for download and

upload of data from the unit.

2. The CPU module should be within the Master display panel enclosure and draw

its operating power from the MDB power supply.

3. It would be able to store route information of trains appearing in “Trains at a

glance” each identifiable through its train number/route number along with their

voice related messages (if provided with a Audio Announcement Unit).

4. It should store route related data for multiple train routes. CPU should provide a

means to select the train route on which the coach is to operate with the help of

alpha numeric Keypad.

5. The keys should be provided on the lower side of Master Display Board.

6. The CPU should use the master display’s LED matrix as the display device for

the user interface.

7. The CPU should generally provide the following menu options:

Level 1: For route selection, selection of up and down menu etc by AC

mechanic.

Level 2: For servicing functions like testing of GPS device, communication links,


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Display of route data, management of system passwords, coach number

modification etc by maintenance supervisor.

8. It should Provide a means to select Up and Down journey, either through a

switch or through route selection using keypad or automatically using GPS data

or from the RTTIS system(if RTTIS is available).

9. The CPU should also be capable of being networked with a centralized system /

RTTIS system for receiving route related data, configuration data and GPS data

(if necessary) from the RTTIS system.

10. The route data pertaining to various routes should be easily updatable using the

Data Transfer Device or remotely from the RTTIS system, if connected.

11. The CPU should detect its presence on the route and automatically indicate the

next halting station no matter where on the route it is powered up.

12. It should provide an interface for uploading of route log into the memory and

store the route log for the Up and the Down direction.

13. It should locate itself on the route so that the next halting station on the route can

be identified from the route log and its arrival announced on the display panels.

14. The CPU should also generate voice messages using the Audio Announcement

Unit (AAU) (if asked for by purchaser) upon arrival of destination or departure

station.

15. It should calculate the distance from the next halting station, current time and

speed etc.and compile messages related to the same and periodically transmit

them to the display devices for display. However only real time, the distance

from next halting station and next en-route station should be displayed.

16. The CPU should be capable of logging trip related data consisting of station

name and date and time of arrival for the last 10 journeys in a FIFO order. The

same should be downloadable using the Data Transfer Device

2.3.2 Slave LED Display Display Board Slave Display Units shall display visual information like approaching station

name, journey messages etc. to the train passengers. The Display panels

should have an RS485 Communication link to communicate with the master


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display unit. The information on display boards shall be displayed in turn in

English, Hindi and in local language of state /area through which train is passing.

The Slave and master display units follows the same protocol to communicate with each other. The power to the slave LED board is drawn from its independent power supply.

2.3.3 Slave LCD Display Board In 1st AC coaches’ coupes, in addition to the LED boards in the pathway, backlit LCD Monochrome display Unit meeting the following specification may be provided wherever

Required by purchaser:

Display Format - 240 x 128

View Area size (minimum): 114mm X64mm.

The LCD display Units shall be networked to the RS485 bus of the CPU meant for Slave display devices. The power to the slave LCD board is drawn from its independent power supply.

2.4 Technical specifications

2.4.1 Master display board

Parameter Specified Value

Matrix for each Line 16 X 112

No. of Sides Single Face

PITCH 3.2mm x 2.8mm

LED As per clause no: 6.4.10

Color Amber (as specified)

Languages to be Displayed English, Hindi and regional language


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Character size 560mm X 80mm

Information to be displayed (English)

Welcome note, Present Station, Next Station, Safety Messages etc.

Display module 16 x 48 with variable brightness depending on time of day.

PCB Glass epoxy FR-4 Grade

Power Supply required 110V AC/DC

Type of CPU 32 bit and above

Working Range voltage 90V-135V DC

Ambient Operating Temperature –100 to +700C

2.4.2 Slave LED display board


Matrix for each Line 16 X 112


PITCH 3.2mm x 2.8mm

LED As per clause no: 6.4.10

Color Amber (as specified)

Languages to be Displayed English, Hindi and regional language

Character size 560mm X 80mm

Information to be displayed (English)

Welcome note, Present Station, Next Station, Safety Messages etc.


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Display module 16 x 48 with variable brightness depending on time of day.


Power Supply required 110V AC/DC

Type of CPU 32 bit and above

Working Range voltage 90V-135V DC Ambient Operating Temperature –100 to +700C

2.4.3 Slave LCD display board Slave LCD Display board shall be of following specifications:


Display Format 240 x 128

View Area size (minimum) 114mm X64mm


Color Monochrome LCD Blue Background with white letters

Languages to be displayed English, Hindi and regional language


Power Supply required 110V AC/DC Type of CPU 32 bit and above Working Range voltage 90V-135V DC Ambient Operating Temperature –100 to +700C


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2.5 Mechanical Specifications

2.5.1 Master display board


Physical dimensions of Master display board

600 mm(L)x120mm(H)x 80mm(D)

Enclosure Fixing 580mm x 100 mm with 6mm holes

Case Material 1.2mm thickness is provided. Material is used IS 513 Grade O.

Mounting Provision Wall Mounting

Color Black

Finish Powder Coated

2.5.2 Slave LED display board:


Physical dimensions of Master display board

600 mm(L)x120mm(H)x 80mm(D)

Enclosure Fixing 580mm x 100 mm with 6mm holes


Mounting Provision Wall Mounting

Color Black



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2.5.3 Slave LCD display board Parameter Specified Value

Enclosure Size

195mm(Length) X 110 mm (Width) X 50 mm (Height)

Mounting dimensions 175 mm X 60 mm


Mounting Provision Wall Mounting Color Black



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2.6 Connectivity


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3 CHAPTER-3

3.1 Maintenance

3.1.1 Cleaning the display boards All our display boards are dust proof. Even though, cleaning the boards regularly

will help in restoring the visibility of the display which was altered due to the dust accumulated outside on the panel protector or inside (very rare).

All service and maintenance related works should be done valid personnel only, otherwise they may damage the equipment.

3.1.2 Connectivity checking. All the connectivity should be check regularly for the proper function of the system. Connectivity should be a specified.

If any faulty found then do the test from the user interface keypad provided. For doing the port testing, verify the operation and troubleshooting manual.

If communication cables are malfunctioning then check the loose contact or cable cuts. If found repair them or even replace them.

For checking the working condition of the display boards, check test modes as mentioned above.

3.1.3 Replacing equipment Replacement of equipment is only suggestible when is totally damaged and cannot be repaired.

While replacing display boards, please ensure that it is totally damaged and also log the damage reasons and percentage of damage occurred.

3.1.4 Replacing LED display cards LED display cards are sometime needed to be replaced when they are not functioning or damaged. For this switch off the power display boards and then removes the ribbons connected to that particular display card. Replace the damaged display card with the new one and then connect the ribbons and connectors as earlier. Now check the functionality of the display boards with the help of test modes and then check the normal display functionality.


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3.1.5 Replacing power supplies Generally, all the equipment in the system uses built in power supplies .These supplies work reliably between 90V and 110V DC. These supplies come with short circuit.

Switch off the supply to the equipment to which supply needed to be replaced .open the cabinet and then remove the power supply connectors from the power supply source. Replace the new power supply (SMPS) with the faulty one.

Then verify the voltages at each terminal. If found correct, connect the power supply connectors correctly as earlier and verify once again the connectivity and then operate the equipment with new supply and check. Log the reasons for damage or malfunctioning of the power supply for future traceability.

3.1.6 Replacing LCD display boards LCD display cards are sometime needed to be replaced when they are not functioning or damaged. For this switch off the power display boards and then removes the ribbons connected to that particular display card. Replace the damaged display card with the new one and then connect the ribbons and connectors as earlier. Now check the functionality of the display boards with the help of test modes and then check the normal display functionality.

passenger information system for ac & non ac coaches

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