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LonWorks TM On Amtrak’s Acela Express

LonWorks TM On Amtrak’s Acela Express. Introduction Players Networks Systems Status. LonWorks TM On Amtrak’s Acela Express. Introduction Amtrak’s Original Goal Reap some of the Benefits of the prolific use of micro-processor based systems How

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LonWorks TM On Amtrak’s Acela Express

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  1. LonWorksTM On Amtrak’s Acela Express • Introduction • Players • Networks • Systems • Status

  2. LonWorksTM On Amtrak’s Acela Express • Introduction • Amtrak’s Original Goal • Reap some of the Benefits of the prolific use of micro-processor based systems • How • Specify the centralized collection of subsystem operation and status data • Why • Improve information availability • Thereby improving transportation operations, and, • Improve equipment turn-around time

  3. LonWorksTM On Amtrak’s Acela Express • Introduction • Amtrak did not specify how to integrate data collection, only that it was to be accomplished • Why? • The integration of the data from the diverse subsystems in the industry is a difficult task • Potential System providers had diverse approaches as to how to accomplish this task

  4. LonWorksTM On Amtrak’s Acela Express Levels of Integration:

  5. LonWorksTM On Amtrak’s Acela Express • Players • Amtrak – End User • Bombardier • Systems Integration on Superliner II, NJ Comet IV, Kuala Lumpur Metro, & NYCTA R-142 • Vapor Canada • Bombardier hardware supplier and industry experience • Echelon – LonWorksTM • System and equipment for industrial application • LonTalk protocol provides all 7 of the levels of the OSI model

  6. LonWorksTM On Amtrak’s Acela Express • Networks • Car Internal Network (CIN) • LonWorks Twisted Pair Transceivers • FTT-10A, 78kbps • Power & Brake SubNetwork (PBIN) • LonWorks Twisted Pair Transceivers • FTT-10A, 78kbps • Separated for Independent Traffic Control • Trainset Monitoring Network • Special Physical Layer

  7. LonWorksTM On Amtrak’s Acela Express

  8. LonWorksTM On Amtrak’s Acela Express

  9. LonWorksTM On Amtrak’s Acela Express Trainset Monitoring Network (TNET) Token Bus Network Industry-standard 50 ohm Shielded Twisted Pair Based on IEEE 802.4, except for physical layer Hardened for environment High Noise Immunity High Voltage Open Circuit Withstand Current Limit to control contact degradation Opto-isolation to control inter-car voltage variations Transfer speed ~ 170 kbps

  10. LonWorksTM On Amtrak’s Acela Express • System Variables • Train-wide Status • Subsystem Operational Status • Subsystem Analog Values • Maintenance Events

  11. LonWorksTM On Amtrak’s Acela Express • System Variables • Train-Wide Status • 480 VAC Available – prevent false maintenance events • No Active Cab • All Doors Closed • No Motion • Layover Mode • Master Door Control Station Side • Main Pressure Reservoir Ok – Prevent false events • Door Open Inhibit Active

  12. LonWorksTM On Amtrak’s Acela Express • System Variables • Subsystem Operational Status • Periodically transmitted variables, rate adjustable • 16 to 96 individual Operational Status bits • Some bits common to all systems • Some bits unique to each subsystem • Train Operational Values – speed, pressures • Car monitoring Unit forwards variables to the Displays • Car Monitoring Unit stores variables – rolling history

  13. LonWorksTM On Amtrak’s Acela Express • System Variables • Subsystem Analog Values • Non-essential for Train Operation, • Coach Interior Temperature • Battery voltage • Etc. • Display Unit requests value from Car Monitoring Unit • Car Monitoring Units sets a refresh rate for the variable from the specific Subsystem • Display Unit will state when variable is no longer needed • Car Monitoring Unit resets the refresh rate to zero

  14. LonWorksTM On Amtrak’s Acela Express • System Variables • Maintenance Events • Fault Detection (I.e., LVPS Failed) • Maintenance Forecasting (I.e., Door slow closing) • Information (I.e., ATC C/O Active) • Manual Fault Entry (I.e., Broken mirror) • Type of Events • Set/Reset – (I.e., online/offline) • Pulse – (I.e., one time occurrence event) • Information • Code, Description, Type • Car Monitoring Unit tags with Date, Time, Etc.

  15. LonWorksTM On Amtrak’s Acela Express STATUS Primary Operating Display (POD) In an ALERTER display

  16. LonWorksTM On Amtrak’s Acela Express STATUS Primary Operating Display (POD) In an Degraded Operation Mode (POD or MFD in fault)

  17. LonWorksTM On Amtrak’s Acela Express STATUS Multifunction Display (MFD) Status of Tilt System

  18. LonWorksTM On Amtrak’s Acela Express STATUS Multifunction Display (MFD) Maintenance Events For Wheel Slip System

  19. LonWorksTM On Amtrak’s Acela Express

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