Indicator System Design for Traction Areas
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Questions and Answers

What is the primary purpose of the Coach Guidance System?

  • To enable passengers to locate their coach (correct)
  • To monitor the train's speed and direction
  • To display advertisements on the display boards
  • To provide information about the train schedule

    • How should the wiring of the data cable and power cable be done?

  • Through separate PVC/HDPE or DWC pipes (correct)
  • Above the display boards
  • Through the metallic structure of the platform shed
  • Through a single PVC/HDPE or DWC pipe

    • What is the recommended method for terminating the data cable?

  • Soldering the wires
  • Twisting the wires together
  • Using electrical tape
  • Using proper terminal strips or connectors (correct)

    • Why should the display boards be installed with care?

    <p>To prevent obstruction of signal visibility</p> Signup and view all the answers

    What material should be used to fix the GI angles to the inner side walls of the display boards?

    <p>Metallic clamps</p> Signup and view all the answers

    What is the purpose of using flexible corrugated pipes?

    <p>To improve the aesthetics of the display unit</p> Signup and view all the answers

    Who should be involved in checking the installation of display boards?

    <p>The Signal supervisor and the installation team</p> Signup and view all the answers

    What is the recommended type of connector to be used for terminating the data cable?

    <p>A connector of standard size from a branded/reputed make</p> Signup and view all the answers

    What is the primary consideration in designing the Train Indication System?

    <p>Immunity to failures and ease of maintenance</p> Signup and view all the answers

    What should be provided at the 230V AC mains end and output of power supply to protect electronic modules from damage?

    <p>GD tubes, MOVs, and fuses</p> Signup and view all the answers

    Where should the electrical power supply for all Train Indication Boards be provided from?

    <p>A centralized place in the station</p> Signup and view all the answers

    What should be installed in a secure manner to prevent unauthorized access?

    <p>The Operating Console and associated equipment</p> Signup and view all the answers

    What arrangement should be provided for housing the wires in the 19” housing cabinet?

    <p>Cable ducts and cable management systems</p> Signup and view all the answers

    What should be the primary consideration for designing the system for 25 KV AC traction areas?

    <p>Proper earthing arrangement to prevent EMI and RFI interference</p> Signup and view all the answers

    What is the recommended arrangement for laying data and power cables over metallic structures under platform sheds?

    <p>Using a common cable tray inside platform sheds for all types of cabling</p> Signup and view all the answers

    What should be provided for the data cable to prevent EMI and RFI interference in 25 KV AC traction areas?

    <p>Earthing arrangement for grounding the shield of the data cable</p> Signup and view all the answers

    What is the maximum interval at which metallic clamps should be fixed to hold pipes carrying cables?

    <p>5 mtrs</p> Signup and view all the answers

    What should be installed in the announcer's cabin or at remote locations at the station?

    <p>Operating Console (Central Data Controller)</p> Signup and view all the answers

    What is the recommended size of the cabinet for housing standard computer accessories?

    <p>19” cabinet</p> Signup and view all the answers

    What is the primary concern while designing the metallic hanging arrangement for display boards?

    <p>Preventing accidental dislocation</p> Signup and view all the answers

    What is the recommended material for the angles used to hang display boards from the platform roof?

    <p>G.I. angles</p> Signup and view all the answers

    What is the primary purpose of using metallic clamps to hold pipes carrying cables?

    <p>To prevent sagging of cables</p> Signup and view all the answers

    What is the recommended location for hanging display boards in FOBs?

    <p>From the FOBs roof</p> Signup and view all the answers

    What is the primary concern while installing display boards in FOBs?

    <p>Preventing swinging due to wind or movement</p> Signup and view all the answers

    What is a crucial feature of the display board at the entry or lobby of a train station?

    <p>Displaying the platform number and train number</p> Signup and view all the answers

    Why is it necessary to blank the complete display board when there is no data signal from the operating console?

    <p>To prevent stray dots from lighting up</p> Signup and view all the answers

    What is essential for achieving optimum visibility of the display boards?

    <p>Providing proper weather protection and glare protection</p> Signup and view all the answers

    What is the purpose of providing input power_ON indication outside the display board?

    <p>To indicate when the power is on and the board is operational</p> Signup and view all the answers

    What is the primary consideration for mounting the equipment of the Coach Guidance System?

    <p>Protection from dust and temperature rise</p> Signup and view all the answers

    What is essential for the Coach Guidance Display Board to ensure optimal performance?

    <p>Conformance to typical layout and approval from Railways</p> Signup and view all the answers

    What is the primary benefit of providing coach guidance boards at the station and platform?

    <p>Improving the overall passenger experience</p> Signup and view all the answers

    What is the purpose of providing EMI & RFI protection for the Coach Guidance System equipment?

    <p>To reduce the electromagnetic interference and radio-frequency interference</p> Signup and view all the answers

    What is the primary source of data for the software to acquire updated information of running trains?

    <p>NTES/COIS or any central server</p> Signup and view all the answers

    What is the primary function of the local operator in the system?

    <p>To cross-examine the auto-derived information and correct it before announcement/display</p> Signup and view all the answers

    What type of message can be announced/displayed by the system?

    <p>Various messages including late arrival, platform number changes, and cancellations</p> Signup and view all the answers

    What is the requirement for voice files used in announcements?

    <p>They should be recorded by the same announcer</p> Signup and view all the answers

    What is the provision for adding new coach types to the system?

    <p>There is a provision for adding a new coach type in the coach master database</p> Signup and view all the answers

    What is the requirement for announcing/displaying newly added trains?

    <p>It should be automatic without any recording to be modified</p> Signup and view all the answers

    What is the primary function of the display boards in the system?

    <p>To display announcements related to train arrival and departure</p> Signup and view all the answers

    What is the primary function of the PA system in the system?

    <p>To make announcements related to train arrival and departure</p> Signup and view all the answers

    What should be done to protect electronic modules from damage in the Train Indication System?

    <p>Providing surge and lightning protection arrangement at 230V AC mains end and output of power supply</p> Signup and view all the answers

    Where should the electrical power supply for all Train Indication Boards be provided from?

    <p>A centralized place</p> Signup and view all the answers

    What should be the primary consideration in designing the Train Indication System?

    <p>Ease of maintenance and immunity to failures</p> Signup and view all the answers

    What should be provided to prevent EMI and RFI interference in 25 KV AC traction areas?

    <p>Proper earthing arrangement for grounding the shield of the data cable</p> Signup and view all the answers

    What should be installed in a secure manner to prevent unauthorized access?

    <p>The workstation and associated equipment</p> Signup and view all the answers

    What should be provided for housing the wires in the 19” housing cabinet?

    <p>All of the above</p> Signup and view all the answers

    What should be the primary consideration for designing the Train Indication System for 25 KV AC traction areas?

    <p>Proper earthing arrangement for grounding the shield of the data cable</p> Signup and view all the answers

    What should be provided in the operating console?

    <p>Required software and provision of data entry for train no, time table of Trains, PF.No. &amp; Expected Arrival / Departure time etc.</p> Signup and view all the answers

    What is the format of the fixed audio messages recorded in the AUTO Announcement System?

    <p>Digital</p> Signup and view all the answers

    What is the primary consideration for designing the AUTO Announcement System's software?

    <p>Ease of use for the Railway Engineer</p> Signup and view all the answers

    What is the purpose of the provision to select messages and language for announcement?

    <p>To allow for customization of announcements</p> Signup and view all the answers

    Where should the voice recording for the AUTO Announcement System be done?

    <p>In a soundproof professional studio</p> Signup and view all the answers

    What is the primary consideration for the installation of the AUTO Announcement System at stations?

    <p>To cover the Concourse and Platform area</p> Signup and view all the answers

    What is the requirement for the announcement of newly added trains?

    <p>They should be announced automatically</p> Signup and view all the answers

    What is the primary benefit of the AUTO Announcement System's user-friendly interface?

    <p>It allows for easy addition and alteration of announcements</p> Signup and view all the answers

    What is the requirement for the speakers, microphones, and acoustical environment in the AUTO Announcement System?

    <p>They should be of standard make and as per RDSO specification</p> Signup and view all the answers

    What is the recommended way to lay data and power cables over metallic structures under platform sheds?

    <p>In separate DWC/HDPE/PVC pipes</p> Signup and view all the answers

    What is the primary consideration for designing the metallic hanging arrangement for display boards?

    <p>Mechanical load and safety</p> Signup and view all the answers

    What is the recommended size of the cabinet for housing standard computer accessories?

    <p>19 inches</p> Signup and view all the answers

    At what interval should metallic clamps be fixed to hold pipes carrying cables?

    <p>Every 5 meters</p> Signup and view all the answers

    What material should be used to hang display boards from the platform roof?

    <p>G.I. angles</p> Signup and view all the answers

    What is the primary concern while designing the display board installation?

    <p>Safety and security</p> Signup and view all the answers

    Why should the display boards be hung from the platform roof?

    <p>To prevent accidental dislocation</p> Signup and view all the answers

    What is the primary benefit of using separate pipes for data and power cables?

    <p>Enhanced safety</p> Signup and view all the answers

    What should be provided at the entry or at lobby of a train station?

    <p>A suitable Display board indicating the Train No., Platform No., arrival / departure time</p> Signup and view all the answers

    Why is it necessary to blank the complete display board when there is no data signal from the operating console?

    <p>To prevent stray dots from lighting up</p> Signup and view all the answers

    What should be provided to achieve the optimum visibility of the display boards?

    <p>Proper weather protection and glare protection</p> Signup and view all the answers

    What is the primary consideration for mounting the Coach Guidance System equipment?

    <p>Industrial grade metallic housing with earthing for EMI &amp; RFI protection</p> Signup and view all the answers

    What should be provided on the platform at various locations?

    <p>Indicator with respective coach location board</p> Signup and view all the answers

    What is the purpose of providing input power_ON indication outside the display board?

    <p>To help maintenance personnel</p> Signup and view all the answers

    What is essential for the Coach Guidance Display Board to ensure optimal performance?

    <p>Conformity to typical layout and approval by Railways</p> Signup and view all the answers

    Why should the display boards be installed with care?

    <p>To avoid damage to the display board</p> Signup and view all the answers

    What is the primary function of a Master Clock in a railway premises?

    <p>To drive other Slave Clocks to keep uniform timing</p> Signup and view all the answers

    What is the benefit of using GPS clocks in a railway premises?

    <p>They can be used as Master Clocks or Slave Clocks</p> Signup and view all the answers

    How do Slave Clocks operate in a railway premises?

    <p>They are driven by the Master Clock to keep uniform timing</p> Signup and view all the answers

    What is a potential issue that can affect the reliability of GPS signals in a railway premises?

    <p>EMI noise and power transients</p> Signup and view all the answers

    What is an essential component of a reliable power supply system in a railway premises?

    <p>Backup power source</p> Signup and view all the answers

    Why is it important to provide EMI noise and power transient protection for the Coach Guidance System equipment?

    <p>To prevent damage to the equipment</p> Signup and view all the answers

    What is the primary consideration for designing a power supply system for a railway premises?

    <p>Reliability and backup power source</p> Signup and view all the answers

    What is a benefit of using a GPS clock as a Master Clock in a railway premises?

    <p>It improves the accuracy of the Slave Clocks</p> Signup and view all the answers

    Study Notes

    Indicator System Design

    • The indicator system should be designed to minimize operator operations for initiating and completing the data entry process.
    • The system should have surge and lightning protection arrangements at the 230V AC mains end and power supply output to protect electronic modules from damage.
    • The system should be designed to suit 25 kV AC traction areas, with proper earthing arrangements to prevent EMI and RFI interference.

    Operating Console (Central Data Controller)

    • The operating console should be installed in the announcer's cabin or remote locations at the station.
    • The console should have required software and provision for data entry for train numbers, timetables, platform numbers, and expected arrival/departure times.
    • The workstation and associated equipment should be installed in a secure manner, with adequate arrangements for housing wires and cables.

    Coach Guidance System

    • The Coach Guidance System enables passengers to locate their coach for the train they wish to travel on.
    • The system consists of at-a-glance display boards at station lobbies and coach guidance boards at platforms.
    • The coach guidance boards should conform to typical layouts approved by Railways, depending on location and need.

    Installation and Wiring

    • Data and power cables should be laid in separate PVC/HDPE/DWC pipes, suitably fixed along the route or in a common cable tray.
    • Suitable metallic clamps should be fixed at regular intervals to hold the pipes carrying the cables.
    • Display boards should be hung from the metallic structure of the platform roof or FOBs, with a secure hanging arrangement to prevent accidental dislocation.
    • The display boards should have input power-on indication outside the board and be clearly visible under normal ambient conditions.

    Protection Arrangement

    • The equipment should be mounted in metallic housing to avoid dust entry and temperature rise.
    • The arrangement should provide complete EMI and RFI protection, with necessary earthing and protection devices.

    Software and Data Management

    • The software should be able to acquire updated data of running trains from NTES/COIS or any central server.
    • The software should process updated data of running trains to display on various types of display boards, coach guidance systems, and announcement on PA systems.
    • The auto-derived information should be cross-examined by the local operator and corrected before announcement/display.
    • Provision should be made for adding new coach types in the coach master database.

    Passenger Information System

    • The Telecom department of Indian Railways provides various types of Passenger Information Systems, including:
      • Interactive Voice Response System (IVRS)
      • Prerecorded Announcement and Auto Announcement System
      • Train Indicator
      • Coach Guidance System
      • GPS Clock/Master Slave Clock

    Interactive Voice Response System (IVRS)

    • Provides information on Train Running, Passenger PNR, etc. through a centralized database
    • Can be accessed through PSTN / Mobile Network

    Prerecorded Announcement and Auto Announcement System

    • Provides information to the public on PSTN Telephone regarding Train Running Information
    • Can also work as an Announcement System on Platforms with suitable interface to PA system

    Train Indicator

    • A display device that provides information on Train Arrival/Departure timing and Platform No.
    • Can be operated locally at a particular station or fed from a Central location
    • Typically provided at Platforms and Public utility locations

    Coach Guidance System

    • A display device that indicates the position of each coach from the engine with description of train number and Coach Position
    • Consists of coach guidance boards at Station and platform operated through PC workstation at remote location/control offices or at Stations

    GPS Clock/Master Slave Clock

    • Master Clock is a controlling clock in Railway premises that drives other Slave Clocks to keep uniform timing
    • Slave Clocks are clocks in the Railway premises driven by the Master Clock
    • GPS clocks may be provided independently or used to work as Master Clock/Slave clock

    Design and Installation Requirements

    • The system should be designed to minimize the number of operations for initiating and completing the entire process of data entry
    • Surge and lightning protection arrangement should be provided to protect electronic modules from damage
    • The system should be designed to suit 25 KV AC traction areas and have proper earthing arrangement to prevent EMI & RFI interference
    • Electrical power supply for all Train indication Boards should be provided from a centralized place
    • Ease of maintenance and immunity to failures should be the primary consideration in the design of the system
    • The operating console should be installed in a secure manner with required software and provision of data entry for train no, time table of Trains, PF.No., and Expected Arrival/Departure time
    • The workstation and associated equipment should be installed in a secure manner with adequate arrangement for housing wires and cables

    Operating Console (Central Data Controller)

    • Should have required software and provision of data entry for train no, time table of Trains, PF.No., and Expected Arrival/Departure time
    • Should be installed in a secure manner with adequate arrangement for housing wires and cables

    Auto Announcement System

    • Should be PC/Server based with user-friendly GUI for the announcement of various messages related to train operations/safety
    • Fixed audio messages should be recorded in digital format and added to audio files list in the PC/Server
    • Should be possible to make repeated announcements without affecting other operations
    • Should be possible for the operator to stop the announcements being played
    • Software should be user-friendly to allow for addition and alterations by Railway Engineers without the help of suppliers and programmers
    • Should have provision to select messages and language for announcement
    • The entire voice recording for this system should be done in a sound proof professional studio

    Laying of Data and Power Cable

    • Should be carried out in separate DWC/HDPE/PVC pipes suitably fixed along the route or preferably a common arrangement of cable tray inside platform sheds for all such type of cabling
    • Suitable metallic clamps should be fixed at regular intervals (not more than 5 mtrs) to hold the pipes carrying the cable along with the metallic structures/girders to avoid any sagging of the Data & power cable

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    Related Documents

    Chapter 21: Passenger Information System PDF

    Description

    Design principles for an indicator system in 25 kV AC traction areas, including surge and lightning protection, earthing arrangements, and operating console considerations.

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