Transcript Communications and Data Flow Within the FHWA VII Network

VII System Architecture Overview
June 2006
VII System Architecture
The VII System consists of multiple Sub-systems developed by both Public and Private
Entities that will ultimately enable functionality for public and private Services
VII Vehicle End Users
OBE
VII Network Infrastructure
VII RSE
Management Layer
Network Application
Application
Layer
Application
Service
Network
Layer
Vehicle
Interface
To Vehicle
Distributed
Management
Agent
Management
Agent
Local
Application
Services
Layer
VII SDN & NAP
Communications
Service
DSRC
Interface
DSRC Network
ApplicationSupporting
Services
DSRC
Interface
Network
Interface
VII Network End Users
VII
ENOC
Public
Service Point
Private
Service Point
Centralized
Management
& Security
Systems
Public
Services
Applications
Private
Services
Applications
Service Delivery Node
(SDN)
application-supporting
network services
Application
Support
Services
Network Access Point
(NAP)
access control, routing
and data transport
Backhaul
Roadside
Network
Infrastructure
-- Signal Controllers
Other RSEs
-- Sensor Systems
-- Transaction Processors
WAN (Backbone)
Network
Access Network (TDM, Metro Ethernet, IP Network)
Other VII NAPs
USCG
DGPS
Service
Certificate
Authority
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VII System Services
 Probe Data Distribution
Distribute vehicle generated probe data to
subscribing network users
 Advisory Message Distribution
Distribute geographically-focused advisory
messages to passing vehicles
 Map Element Distribution
Distribute local intersection and road section maps
to passing vehicles is support of safety
applications.
 Position Correction Distribution
Distribute position correction information to
passing vehicles in support of safety applications.
 Roadside Infrastructure Support
– Interface with signal controllers for distribution of
signal phase and timing information to passing
vehicles in support of safety applications.
– Interface with roadside sensors to forward
information to network user or to distribute
advisory messages to passing vehicles.
– Interface with roadside transaction processing
systems.
 Communications
Transportation of data between a vehicle and
a network user, optionally supporting
preservation of communication session as
vehicle move between RSEs.
 RSE Information Lookup
Provide RSE information, such as location or
current service offerings to network users.
 Management
Monitoring, configuration and control using
network management systems and services.
 Security
Provides for managed security controls and
mechanisms.
 Positioning
Utilizes multiple sources to develop accurate
vehicle positioning
 System Time
Utilizes GPS (Stratum-1) timing source for
system components facilitating
synchronization.
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VII System Architecture
A more detailed view of the Sub-Systems.
VII Vehicle End Users
VII Network Infrastructure
OBE
Application
Layer
VII RSE
OBE Remote
Services Application
VII Service Delivery Node (SDN)
& Network Access Point (NAP)
OBE Local
Application
Position
Correction
Generator
Network
Layer
Communications
HMI
Vehicle
I/F
OBE
Vehicle
Interfaces
HD Systems
SOC Systems
OBE
DSRC
RSE
DSRC
DSRC Network
Map
Element
Generator
CSIRC Systems
Local
System
Interface
Network
Gateway
RSE
(Backhaul)
Gateway
Backhaul Network
Roadside
Infrastructure
Other RSEs
-- Signal Controllers
-- Sensor Systems
-- Transaction Processors
Probe
Data
Integrator
Private
Service Point
Private
Services
Applications
Public
Services
Applications
Probe
Data
Integrator
Buffer/
Proxy
ENS Broker
RSE Application
Supporting Services
IP Session
Dispatcher
Public
Service Point
NOC Systems
Local NMS
Agent
RSE
Information
Lookup Agent
OSGI
Crypto
VII
ENOC
Management Layer
RSE
Management
Positioning
Services
Layer
VII Network End Users
VII SDN
Gateway
VII NAP
Application
Server
Message
Delivery Agent
Access
Gateway
Network
Interface
WAN (Backbone)
Gateway
Dispatch
ESB
Application
Server
Network
Interface
Access Network (TDM, Metro Ethernet, IP Network)
WAN (Backbone) Network
Other VII NAPs
USCG
DGPS
Service
Certificate
Authority
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Contact Information
James Marousek
Booz | Allen | Hamilton
13200 Woodland Park Dr.
Herndon, VA 20171
(703) 984-0324 Office
(703) 969-6047 Mobile
[email protected]
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