IEEE 1473-L Communications Protocol Experience in Rail

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IEEE 1473-L Communications ProtocolExperience
in Rail Transit

• Tom Sullivan
• Transportation Systems Design, Inc.
  Oakland, CA

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Topics

• IEEE 1473-L Review
• Recent Transit Experience
• Where we may be headed

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What is IEEE 1473-L?
Rail Conference Baltimore, MD June 2002

• Rail Transit Vehicle Interface Standard

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IEEE 1473-L

• Based upon
• ANSI/EIA 709.1 Communications Protocol
• ANSI/EIA 709.3 Physical Layer 1
• LonWorks
• Open, Control Network Protocol
• Portable to any microprocessor
• Millions of Neuron nodes deployed
• ISO OSI 7-Layer Model

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CAN Vs LonWorks
LonTalk
CAN
Authentication
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LonWorks Neuron Nodes

• 1 Uniform Architecture
• Simple Powerful
• WHEN() gt ACTION
• Standardized
• Interoperable
• 2 Silicon Sources
• 3 Internal CPUs

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Interoperability - NYCT
NYCT IEEE 1473-L Propulsion Trainline
LonWorks Tunnels through E1
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Interoperability - RTVISC
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LonMark Profiles

• Network Object
• Open Standard
• Open Interfaces
• Communication via Standard Network Variable
  Types
• SNVTs

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SNVTs

• Standard Network Variable Types
• Many predefined
• Engineering Units
• SNVT Examples
• Simple Types
• Current, Temperature, HVAC_Mode
• Complex Types
• TimeStamp
• Earth Position (GPS)
• SNVT Master List

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Where IEEE 1473-L is Used
Rail Conference Baltimore, MD June 2002

• Trains, Planes Automobiles

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Vehicle Applications

• US Navy
• Attack Helicopters
• Warships
• Trucks, Buses Autos
• Bus Transit, Traffic ITS
• Rail Vehicles
• Freight, Commuter Rail
• Heavy Light Rail APMs

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Whats Next?
Rail Conference Baltimore, MD June 2002
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IEEE 1473-L Future

• Advanced Networking
• Interoperation with other Standards
• Open Wireless Networking
• Increased Safety Security
• Real-Time Diagnostics
• Powerline Transceivers
• ANSI/EIA Standard
• AAR gt 3 mile long trainlines
• Vehicle Retrofits
• Other Advanced Transit Applications
• E.g., Single Wire Switch Machine

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Wireless Networking Today
Proprietary Wireless Data Network
Typical Architecture
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Open IEEE System Network
Open IEEE 802.11 Wireless Data Network
Open Network Architecture
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Benefits of IEEE Standards
WirelessTransceiver
IEEE 802.11 Wireless Data Networks
Frequent Inexpensive Wireless Nodes
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IEEE 1473-L Summary

• Standard
• De Jure De Facto (U.S.)
• Open
• Protocol, Profiles SNVTs
• Interoperable
• Tunnel ? IP/Ethernet, T1, T3, etc.
• IEEE-1473-T - Gateway (or Tunnel)
• IEEE WG9 New Rail Transit Vehicle Profiles
• Robust, Safe Secure

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For More Information
Rail Conference Baltimore, MD June 2002

• TSD.ORG