VII System Architecture Ron Heft Nissan Technical Center North America

VII System Architecture

Ron Heft

Nissan Technical Center North America

2

Vehicle Infrastructure

Integration2

OverviewOverview

• Where we Stand

• System architecture and components– Onboard Equipment (OBE)– Roadside Equipment (RSE)– Backside message switch

• Use case / data flow examples– Traffic probe data (V–I center)– Intersection signal violation warning (I local–V)

• Where we Stand

• System architecture and components– Onboard Equipment (OBE)– Roadside Equipment (RSE)– Backside message switch

• Use case / data flow examples– Traffic probe data (V–I center)– Intersection signal violation warning (I local–V)

3

Vehicle Infrastructure

Integration3

Where We StandWhere We Stand

• Architecture and Technology Committee– Co-Chaired by:

• George Gilhooley, Florida DOT• Ron Heft, Nissan

• Initial Architecture– Subject to change– Feasibility and Functional testing planned

• Architecture and Technology Committee– Co-Chaired by:

• George Gilhooley, Florida DOT• Ron Heft, Nissan

• Initial Architecture– Subject to change– Feasibility and Functional testing planned

4

Vehicle Infrastructure

Integration4

System PictureSystem Picture

Infrastructure Data System

DSRC Roadside

End User

DSRC Vehicle-to-Vehicle

Vehicle andRoad Data

Driver

Road Data

RSEOBE

Vehicle Side Road Side Back Side

5

Vehicle Infrastructure

Integration5

System Block DiagramSystem Block Diagram

RoadsideEquipment

OnboardEquipment Message

Switch

SubscriberSubscriberApplicationsApplications

5.9 DSRC5.9 DSRC

EndEndUserUser

DriverDriver

Vehicle Vehicle DataData

Driver Driver HMIHMI

6

Vehicle Infrastructure

Integration6

DSRCDSRCAntennaAntenna

GPSGPSAntennaAntenna

HMI HMI DevicesDevices

CANCAN

ChassisChassisBodyBodyDevicesDevices

The Onboard EquipmentThe Onboard Equipment

DSRCTransceiver

VehicleServicesInterface

ApplicationProcessor

GPSReceiver

HMI DevicesInterface

7

Vehicle Infrastructure

Integration7

DSRCDSRCAntennaAntenna

GPSGPSAntennaAntenna

Signal Controller Signal Controller

The Roadside Equipment The Roadside Equipment

DSRCTransceiver

BackhaulCommunications

Interface

GPSReceiver

RSUApplicationProcessor

LocalControllerInterface

8

Vehicle Infrastructure

Integration8

PublicPublicSubscriberSubscriber

ApplicationsApplications

PrivatePrivateServicesServices

AIDMessage

Agent

VehicleVehicleProxyProxyServerServer

BackhaulCommunications

Interface

Backside Message SwitchBackside Message Switch

IPv6Router

9

Vehicle Infrastructure

Integration9

Privacy and SecurityPrivacy and Security

• No permanent public identifier in the OBE

• Encrypted communications betweenRSE and OBE

• Licensed transmitters– Both RSE and OBE

• No message retention in the system

• Authenticated sources for all messages

• Authorized end users

• No permanent public identifier in the OBE

• Encrypted communications betweenRSE and OBE

• Licensed transmitters– Both RSE and OBE

• No message retention in the system

• Authenticated sources for all messages

• Authorized end users

10

Vehicle Infrastructure

Integration10

ExampleTraffic Probe DataExampleTraffic Probe Data

RSE

OBE

MessageSwitch

SubscriberSubscriberApplicationsApplications

5.9 DSRC5.9 DSRC

EndEndUserUserVehicle Vehicle

DataDataVehicle

CAN Bus and GPS

SAE/AASHTO DSRC Probe

Message

Application Database

User Access Application

11

Vehicle Infrastructure

Integration11

RSEOBE

5.9 DSRC5.9 DSRC

DriverDriver

Vehicle Vehicle DataData

Driver Driver HMIHMI

Intersection Intersection ControllerController

SAE/AASHTOSignal Phase

MessageSignal

ControllerState

Violation Alert

ISVW RSEApplicationISVW OBE

Application

ExampleIntersection Signal Violation WarningExampleIntersection Signal Violation Warning

12

Vehicle Infrastructure

Integration12

Summary Summary

• Initial architecture framework

• Meets use cases

• Flexible applications support

• Addresses security and privacy

• Low demand on backside technologies

• Initial architecture framework

• Meets use cases

• Flexible applications support

• Addresses security and privacy

• Low demand on backside technologies

RoadsideUnit

OnboardUnit

MessageSwitch

SubscriberApplications

5.9 DSRC

EndUser

Driver

Vehicle Data

Driver HMI