Transportation Systems Design, Inc. 1 L ON M ARK ® and the IEEE’s new Rail Transit Vehicle...

Transportation Systems Design, Inc.Transportation Systems Design, Inc.

1

LONMARK

®

and the IEEE’s new Rail Transit Vehicle Interface

Standards

LONMARK Transportation MeetingBrooklyn, NYBrooklyn, NYApril 28, 1999April 28, 1999

T. J. SullivanT. J. SullivanPrincipalPrincipal

Transportation Systems Design, Inc.Transportation Systems Design, Inc.Oakland, CAOakland, CA


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Presentation OverviewPresentation Overview

What is IEEE 1473 What is IEEE 1473

How is it used? How is it used?

Where does the LWhere does the LONONMMARKARK Interoperability Interoperability Association fit in ?Association fit in ?


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““Plug and Play”Plug and Play”

Mechanical Standard Electrical Standard


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TCRP Project G4/G4A TCRP Project G4/G4A “Developing Standards for System and Subsystem “Developing Standards for System and Subsystem

Interfaces in Electric Rail Passenger Vehicles”Interfaces in Electric Rail Passenger Vehicles”

Funded by National Academy of ScienceFunded by National Academy of Science– Via Transportation Research BoardVia Transportation Research Board

– American Public Transit AssociationAmerican Public Transit Association

IEEE Standard 1473IEEE Standard 1473


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Eight Initial Working GroupsEight Initial Working Groups

1 - Communications1 - Communications 2 - CB Train Control2 - CB Train Control 3 - Health Monitoring 3 - Health Monitoring

4 - Safety Standards for Software 5 - VOBC/Propulsion/Brake5 - VOBC/Propulsion/Brake 6 - Auxiliary Power Systems6 - Auxiliary Power Systems 7 - Vehicle Passenger Information7 - Vehicle Passenger Information

8 - Environmental Standards8 - Environmental Standards


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IEEE 1473 Train NetworkIEEE 1473 Train Network

CB Train ControlCB Train Control

Health Monitoring Health Monitoring

VOBC/Propulsion/BrakeVOBC/Propulsion/Brake

Auxiliary Power SystemsAuxiliary Power Systems

Vehicle Passenger InformationVehicle Passenger Information

RADIO

MODEM

CO

MM

UN

ICA

TIO

NS

N

ET

WO

RK


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Working Group #1: IEEE 1473Working Group #1: IEEE 1473 Bob Anderson, Bob Anderson, Harmon IndustriesHarmon Industries

Exhaustive search and evaluationExhaustive search and evaluation

Initial list reduced quickly to two Initial list reduced quickly to two –Both selected as a standardBoth selected as a standard

–Both can potentially interoperateBoth can potentially interoperate

Key RTVIS Working Group Key RTVIS Working Group


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IEEE 1473IEEE 1473 IEEE 1473 -T (TCN)IEEE 1473 -T (TCN)

– Dedicated, high performance rail network protocolDedicated, high performance rail network protocol» IEC Draft StandardIEC Draft Standard

supported by Adtranz, Siemens, Ansaldosupported by Adtranz, Siemens, Ansaldo Not supported by SNCF (France)Not supported by SNCF (France)

IEEE 1473 - L ( IEEE 1473 - L ( LLONONWWORKSORKS®® ) )– Cost-effective, open architecture, general purposeCost-effective, open architecture, general purpose

– Over 10 million nodes sold worldwide; >3500 OEMsOver 10 million nodes sold worldwide; >3500 OEMs

– US Rail ApplicationsUS Rail Applications» AAR’s ECP Brake Standard (1.5 million freight cars)AAR’s ECP Brake Standard (1.5 million freight cars)

» PTC Standard for Conrail / CSXT / NSPTC Standard for Conrail / CSXT / NS

» Many light and heavy rail systems including MTA NYC TransitMany light and heavy rail systems including MTA NYC Transit


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Train Communications NetworkTrain Communications Network

Routerr Routerr Routerr

Train Network


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IEEE 1473-L NodeIEEE 1473-L Node

Follows ISO 7- Layer OSI ModelFollows ISO 7- Layer OSI Model Protocol is Protocol is Open and Published Open and Published Two silicon sourcesTwo silicon sources Many Development Tools Many Development Tools

– LonMakerLonMaker» Object Oriented Design ToolObject Oriented Design Tool

» Uses Visio drawing programUses Visio drawing program

» Generates executable network software directly from Visio drawingGenerates executable network software directly from Visio drawing

– Neuron “C”Neuron “C”» C-like program languageC-like program language

» Enhanced with “Enhanced with “WHENWHEN””


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IEEE 1473-L Interfaces IEEE 1473-L Interfaces

PWM, ANALOGOR SERIAL Propulsion / Brake

Tractive Effort P-Signal

Train Doors P W M

P W M

EMERGENCY BRAKE

ACTIVE TOGGLE

LONWORKSNEURON

Integrated Circuit

(THREE 8-BIT

MICROPROCESSORS)

Passenger SignsSERIAL

“UPLOADABLE” APPLICATION

PROGRAM( EEPROM )

TachometersFREQUENCY

ANALOGLoad Weigh

IEEE 1473-L

78 kbps“Free Topology”

Bus11 General-purpose I/O Lines


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IEEE 1473-L Program Example 1IEEE 1473-L Program Example 1

when (doors = = not closed) { brakes = ON } ;

DOORS CLOSED

BRAKESYSTEMB+

Trainline


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Prototype Control Center Graphic

IEEE 1473-L Program Example 2IEEE 1473-L Program Example 2

whenwhen (loadweigh = = AW3)(loadweigh = = AW3)

{ Display (Train = (Full)) } ; { Display (Train = (Full)) } ;

(AW 1) (AW 3) (AW 1)

PELHAM 143 PELHAM 103PELHAM 123

20 MPH

PELHAM 123


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Obtaining True InteroperabilityObtaining True Interoperability

The Devil is in the DetailsThe Devil is in the Details


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IEEE Interoperability IssuesIEEE Interoperability Issues

Existing RTVISC standards are Existing RTVISC standards are necessarynecessary Currently, they are Currently, they are notnot sufficient sufficient

– Many still have a “performance/functional” flavorMany still have a “performance/functional” flavor

– Precise interfaces required to permit interoperabilityPrecise interfaces required to permit interoperability

Additional work is required by either or both:Additional work is required by either or both:– IEEE Working Groups IEEE Working Groups

– LLONONMMARKARK Interoperability Association Interoperability Association


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LLONONMMARKARK Association Association Independent Association of LIndependent Association of LONONWWORKSORKS users users

– Manufacturers, end-users, and integrators/car buildersManufacturers, end-users, and integrators/car builders

Governed by industrial councilGoverned by industrial council Well established interoperability guidelinesWell established interoperability guidelines

– Functional ProfilesFunctional Profiles

– Complete interoperable specificationsComplete interoperable specifications

Promotes LPromotes LONONMMARKARK certified products certified products– Existing published guidelinesExisting published guidelines

– Task groups make new guidelinesTask groups make new guidelines


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The IEEE Standards PiecesThe IEEE Standards Pieces

LONMARK

Buyers Suppliers

IEEERTVIS

FundersWG9


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Process may now be “end-user” drivenProcess may now be “end-user” driven TCRP Project will facilitate standardizationTCRP Project will facilitate standardization NYC Transit is a major standards forceNYC Transit is a major standards force

– Actively participates & supports IEEE standardsActively participates & supports IEEE standards

– Mandates LMandates LONONWWORKSORKS and L and LONONMMARKARK devices devices

– Needs 200 subway cars/year Needs 200 subway cars/year » Until they stop running the subways in NYCUntil they stop running the subways in NYC

What lies Ahead?What lies Ahead?


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SummarySummary

Communications Interoperability is KeyCommunications Interoperability is Key NYCT mandates LNYCT mandates LONONWWORKSORKS and L and LONONMMARKARK

IEEE RTVIS established overall standardsIEEE RTVIS established overall standards LLONONMMARKARK Association will help complete the Association will help complete the

details to ensure Interoperabilitydetails to ensure Interoperability

You’re all welcome to join inYou’re all welcome to join in


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Questions & DiscussionQuestions & Discussion

Transportation Systems Design, Inc. 1 L ON M ARK ® and the IEEE’s new Rail Transit Vehicle...

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