Vehicle Info Event Package draft-singh-simple-vehicle-info-00.txt

March 2007 (IETF 68) IETF - SIMPLE 1

Vehicle Info Event Packagedraft-singh-simple-vehicle-info-00.txt

Vishal SinghHenning Schulzrinne

Piotr Boni

IETF 68, Prague


Goals• Representing status and diagnostic

information for (motorized) vehicles– mainly cars so far, but most applies to buses,

planes, boats, ...


Known to be incomplete

• Need privacy model when presence information of a presentity is composed from information from multiple event packages of same or different presentities

• Used in combination with dynamic location information– speed, heading, ...

• Need presence package for group membership– “people in a room”, “members of a team”,

“passengers on a bus”, ...


Vehicle Status Information

• XML schema for vehicle status and diagnostic information

• Based on OBD-II (On Board Diagnostics-II) standard– Standard by car manufacturers for

diagnostics• every (US) vehicle since 1996

– Diagnostic Trouble Code (DTC) is a 5 byte code, more details in draft

• Vehicle identity using VIN– e.g., 1M8GDM9AXKP042788

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.


Example XML<?xml version="1.0" encoding="utf-8" ?><vehicle-info xmlns="urn:ietf:params:xml:ns:vehicle-info“ entity="sip:[email protected]" state="full" version="1" ><vehicle-description> <description>4 door sedan</description> <make>Toyota</make> <model>Camry</model> <year>2003</year> </vehicle-description><vehicle-state> <status>open</status> <movement>moving</movement> <fuel unit="gallon">3.0</fuel> <temperature unit="F">68</temperature> <passengers>3</passengers> <airbags>closed</airbags></vehicle-state><vehicle-diagnostics> <obdii DTC="P0120">Throttle Switch Malfunction</obdii> <obdii RTData="EngineCoolantTemp" unit="F">20</obdii> <obdii RTData="VehicleSpeed" unit="Miles">55</obdii> <obdii RTData="EngineRPM" unit="RPM">3257</obdii> </vehicle-diagnostics> </vehicle-info>


Uses

• Could be used to compose presence information of user (RPID)– e.g, vehicle at speed 35mph -> user is driving

• Vehicle as a <device> in presence data model?• Vehicle itself is a managed entity (presentity)

– vehicle management• Dynamic association of vehicle with multiple

users– passengers in car


Message Flow Diagram

Vehicle(VUA)

Vehicle Location (VLUA)

Application Watcher

SUBSCRIBEEvent: presence

SUBSCRIBEEvent: vehicle-info

NOTIFYEvent: vehicle-info

SUBSCRIBEEvent: presence

NOTIFYEvent: presence

NOTIFYExpanded PIDFEvent: presence


Open issues

• Will fix up description (lacks detail on items)– need feedback on information included

• Need and support for “set membership” event package?

Vehicle Info Event Package draft-singh-simple-vehicle-info-00.txt

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