Transportation Systems Design, Inc. 1 L ON M ARK ® and the IEEE’s new Rail Transit Vehicle Interface Standards Brooklyn, NY April 28, 1999 L ON M ARK Transportation Meeting Brooklyn, NY April 28, 1999 T. J. Sullivan Principal Transportation Systems Design, Inc. Oakland, CA

Transportation Systems Design, Inc. 2 Presentation Overview n What is IEEE 1473 n How is it used? n Where does the L ON M ARK Interoperability Association fit in ?

Transportation Systems Design, Inc. 3 “Plug and Play” Mechanical StandardElectrical Standard

Transportation Systems Design, Inc. 4 TCRP Project G4/G4A “Developing Standards for System and Subsystem Interfaces in Electric Rail Passenger Vehicles” n Funded by National Academy of Science – Via Transportation Research Board – American Public Transit Association n IEEE Standard 1473

Transportation Systems Design, Inc. 5 Eight Initial Working Groups n 1 - Communications n 2 - CB Train Control n 3 - Health Monitoring 4 - Safety Standards for Software n 5 - VOBC/Propulsion/Brake n 6 - Auxiliary Power Systems n 7 - Vehicle Passenger Information 8 - Environmental Standards

Transportation Systems Design, Inc. 6 IEEE 1473 Train Network CB Train Control Health Monitoring VOBC/Propulsion/Brake Auxiliary Power Systems Vehicle Passenger Information RADIO MODEM COMMUNICATIONS NETWORK

Transportation Systems Design, Inc. 7 Working Group #1: IEEE 1473 Bob Anderson, Harmon Industries n Exhaustive search and evaluation n Initial list reduced quickly to two –Both selected as a standard –Both can potentially interoperate n Key RTVIS Working Group

Transportation Systems Design, Inc. 8 IEEE 1473 n IEEE T (TCN) – Dedicated, high performance rail network protocol » IEC Draft Standard n supported by Adtranz, Siemens, Ansaldo n Not supported by SNCF (France) IEEE L ( L ON W ORKS ® ) IEEE L ( L ON W ORKS ® ) – Cost-effective, open architecture, general purpose – Over 10 million nodes sold worldwide; >3500 OEMs – US Rail Applications » AAR’s ECP Brake Standard (1.5 million freight cars) » PTC Standard for Conrail / CSXT / NS » Many light and heavy rail systems including MTA NYC Transit

Transportation Systems Design, Inc. 9 Train Communications Network Routerr Train Network

Transportation Systems Design, Inc. 10 IEEE 1473-L Node n Follows ISO 7- Layer OSI Model n Protocol is Open and Published n Two silicon sources n Many Development Tools – LonMaker » Object Oriented Design Tool » Uses Visio drawing program » Generates executable network software directly from Visio drawing – Neuron “C” » C-like program language » Enhanced with “WHEN”

Transportation Systems Design, Inc. 11 IEEE 1473-L Interfaces PWM, ANALOG OR SERIAL Propulsion / Brake Tractive Effort P-Signal Train Doors P W M EMERGENCY BRAKE ACTIVE TOGGLE LONWORKS NEURON Integrated Circuit (THREE 8-BIT MICROPROCESSORS ) Passenger Signs SERIAL “UPLOADABLE” APPLICATION PROGRAM ( EEPROM ) Tachometers FREQUENCY ANALOG Load Weigh IEEE 1473-L 78 kbps “Free Topology” Bus 11 General-purpose I/O Lines

Transportation Systems Design, Inc. 12 IEEE 1473-L Program Example 1 when (doors = = not closed) { brakes = ON } ; DOORS CLOSED BRAKE SYSTEM B+ Trainline

Transportation Systems Design, Inc. 13 Prototype Control Center Graphic IEEE 1473-L Program Example 2 when (loadweigh = = AW3) { Display (Train = (Full)) } ; { Display (Train = (Full)) } ; (AW 1)(AW 3)(AW 1) PELHAM 143 PELHAM 103 PELHAM MPH PELHAM 123

Transportation Systems Design, Inc. 14 Obtaining True Interoperability The Devil is in the Details

Transportation Systems Design, Inc. 15 IEEE Interoperability Issues n Existing RTVISC standards are necessary n Currently, they are not sufficient – Many still have a “performance/functional” flavor – Precise interfaces required to permit interoperability n Additional work is required by either or both: – IEEE Working Groups – L ON M ARK Interoperability Association

Transportation Systems Design, Inc. 16 L ON M ARK Association n Independent Association of L ON W ORKS users –Manufacturers, end-users, and integrators/car builders n Governed by industrial council n Well established interoperability guidelines –Functional Profiles –Complete interoperable specifications n Promotes L ON M ARK certified products –Existing published guidelines –Task groups make new guidelines

Transportation Systems Design, Inc. 17 The IEEE Standards Pieces L ON M ARK BuyersSuppliers IEEE RTVIS Funders WG9

Transportation Systems Design, Inc. 18 n Process may now be “end-user” driven n TCRP Project will facilitate standardization n NYC Transit is a major standards force – Actively participates & supports IEEE standards – Mandates L ON W ORKS and L ON M ARK devices – Needs 200 subway cars/year » Until they stop running the subways in NYC What lies Ahead?

Transportation Systems Design, Inc. 19 Summary n Communications Interoperability is Key n NYCT mandates L ON W ORKS and L ON M ARK n IEEE RTVIS established overall standards n L ON M ARK Association will help complete the details to ensure Interoperability n You’re all welcome to join in

Transportation Systems Design, Inc. 20 Questions & Discussion