Vehicle safety communications project executive overview november 4 2003
Download
1 / 31

Vehicle Safety Communications Project Executive Overview November 4, 2003 - PowerPoint PPT Presentation


  • 243 Views
  • Uploaded on

CAMP. CAMP. Vehicle Safety Communications Consortium. Vehicle Safety Communications Consortium. IVI Light Vehicle Enabling Research Program. IVI Light Vehicle Enabling Research Program. Vehicle Safety Communications Project Executive Overview November 4, 2003. Briefing Agenda.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Vehicle Safety Communications Project Executive Overview November 4, 2003' - ronan-huff


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Vehicle safety communications project executive overview november 4 2003

CAMP

CAMP

Vehicle Safety Communications Consortium

Vehicle Safety Communications Consortium

IVI Light Vehicle Enabling Research Program

IVI Light Vehicle Enabling Research Program

Vehicle Safety Communications Project

Executive Overview

November 4, 2003


Briefing agenda
Briefing Agenda

10:00 – 11:00 Executive Overview (F. Ahmed-Zaid, G. Peredo)

Task 4: Refinement of Vehicle Safety Applications

11:15 – 11:35 - Overview (H. Krishnan)

11:35 – 12:00 - Field Testing (J. Bauer)

12:00 – 1:00 Lunch

Task 4: (continued)

1:00 – 1:25 - Field Testing (E. Clark)

1:25 – 1:45 - Simulation Testing (D. Jiang)

1:45 – 2:00 Task 5: Participate in and Coordinate with DSRC Standards Committees and Groups (T. Schaffnit)

2:00 – 2:45 Task 6: Test and Validation of DSRC Capabilities

- Subproject 6A: Protocol Research (D. Jiang)

- Subproject 6B: Security (E. Clark)

- Subproject 6C: Antenna (S. Tengler)


Vsc project
VSC Project

  • Two-year program began May 2002

  • VSC Consortium Members: BMW, DaimlerChrysler, Ford, GM, Nissan, Toyota, and VW

  • Facilitate the advancement of vehicle safety through communication technologies

    • Identify and evaluate the safety benefits of vehicle safety applications enabled or enhanced by communications

    • Assess communication requirements, including vehicle-vehicle and vehicle-infrastructure modes

    • Contribute to DSRC standards and ensure they effectively support safety


Vsc project tasks
VSC Project Tasks

  • Task 1 - Literature Review

  • Task 2 - Analyze the DSRC Standards Development Process

  • Task 3 - Identify Intelligent Vehicle Safety Applications Enabled by DSRC

  • Task 4 - Refine Vehicle Safety Application Communications Requirements

  • Task 5 - Participate in and Coordinate with DSRC Standards Committees and Groups

  • Task 6 - Test and Validate DSRC Capabilities

  • Task 7 - Summary

  • Task 8 - Program Management


Completed tasks 1 2 3
Completed Tasks 1, 2 & 3

  • Task 1:

    • Reviewed available published DOT and OEM literature for communications-based vehicle safety applications

  • Task 2:

    • Prepared roadmap of anticipated DSRC standards (roadmap is updated in Task 5)

    • Provided DOT with synchronized VSC project timeline

  • Task 3:

    • Identified communications-based vehicle safety applications

    • Selected high potential benefit applications for further research


Safety applications
Safety Applications

Communications Between Vehicles

  • Approaching Emergency Vehicle Warning

  • Blind Spot Warning

  • Cooperative Adaptive Cruise Control

  • Cooperative Collision Warning

  • Cooperative Forward Collision Warning

  • Cooperative Vehicle-Highway Automation System

  • Emergency Electronic Brake Lights

  • Highway Merge Assistant

  • Lane Change Warning

  • Post-Crash Warning

  • Pre-Crash Sensing

  • Vehicle-Based Road Condition Warning

  • Vehicle-to-Vehicle Road Feature Notification

  • Visibility Enhancer

  • Wrong Way Driver Warning

Communications Between Vehicle and Infrastructure

  • Blind Merge Warning

  • Curve Speed Warning – Rollover Warning

  • Emergency Vehicle Signal Preemption

  • Highway/Rail Collision Warning

  • Intersection Collision Warning

  • In Vehicle Amber Alert

  • In-Vehicle Signage

  • Just-In-Time Repair Notification

  • Left Turn Assistant

  • Low Bridge Warning

  • Low Parking Structure Warning

  • Pedestrian Crossing Information at Intersection

  • Road Condition Warning

  • Safety Recall Notice

  • SOS Services

  • Stop Sign Movement Assistance

  • Stop Sign Violation Warning

  • Traffic Signal Violation Warning

  • Work Zone Warning


Highest ranking safety applications
Highest Ranking Safety Applications

Near Term (2007 – 2011)

Mid Term (2012 – 2016)

  • Benefit opportunity 5th year after deployment

  • 17M new vehicles/year equipped (of 210M total)

  • Effectiveness derived from “44 Crashes”


Basic c ommunications requirements
Basic Communications Requirements

  • Defined communications parameters that include:

    • Types of Communications (one-way, two-way, point-to-point, point-to-multipoint)

    • Transmission Mode (event-driven, periodic)

    • Update Rate

    • Allowable Latency (communication delay)

    • Data to be Transmitted and/or Received (message content)

    • Required Range of Communication

  • Specified communications parameters based on engineering judgment and industry experience




Task 3 summary
Task 3 Summary Application Scenarios

  • For high potential benefit safety applications

    • Defined system level concepts of operation

    • Refined communications requirements

  • DSRC appears to have the potential to support safety communications requirements

    • Low latency (50-100 ms)

    • Transmission of broadcast messages

    • Adequate range (up to 300 m)

    • Adequate data rate (up to 27 Mbps)

  • Latency requirements for safety applications do not appear to be achievable with other available wireless communications technologies


Task 4 refinement of vehicle safety communications requirements
Task 4 - Refinement of Vehicle Safety Communications Requirements

  • Designed and assembled 20 communications test kits (including DGPS units) for VSC field testing

  • Developed data collection software and analysis tools (now at v2.7) to conduct tests

  • Developed test plan with representative test scenarios

  • Conducted field testing on test track and public roadways

  • Analyzed data from field testing

  • Developed simulation test tool for DSRC protocol investigations


Test equipment
Test Equipment Requirements

  • VSC Communication Test Kits (CTKs)

    • Laptops with 802.11a card

    • DGPS receivers

    • Magmount DSRC and DGPS antennas

    • Portable implementation



Test Scenarios Requirements

Scenario 2

Scenario 1

Two Dynamic Antennas (OBU’s)

One Dynamic Antenna (OBU)One Static Antenna (RSU)

Scenario 3

Scenario 4

Two Static Antennas

Multiple Sending Antennas

Receiver

Legend:

Obstructer

Sender


Test plan structure
Test Plan Structure Requirements


Actual road testing

Test Track Requirements

Actual Road Testing

  • Controlled environment testing: Test tracks

  • Real Traffic Conditions: Highways, rural, arterial, and residential roads in the Palo Alto and Detroit areas (various traffic densities, curves, hills, bridges, etc.)

Public Roads


Freeway testing example

Graph Legend: Requirements

Range (m)

Lost Packets

Received Packets

Accumulated

Received Packets

Video Clips

Large Truck obstruction

Dense Traffic

SUV obstruction

SUV & sedans obstruction

PU Truck obstruction

Receiver lane change

GPS outages under overpasses

Freeway Testing:Example

sender


Moving vehicle testing example
Moving Vehicle Testing: Example Requirements

  • Sender and receiver vehicles pass each other at 50 mph

  • 400-bytes message size, every ~ 50 msec (stress configuration)

  • No packet loss

Sender

Receiver


Simulation testing
Simulation Testing Requirements

  • Used simulation test environment to investigate vehicle scenarios too large for real world testing

  • Initial investigations centered on determining the effectiveness of proposed IEEE 802.11 priority mechanisms for vehicle safety

    • Early results indicate priority mechanism works well to get safety messages transmitted consistently before lower priority messages

    • Significant difference with/without priorities evident in the more stressing simulation runs


Field testing observations
Field Testing Observations Requirements

  • Line of sight, single transmitter-receiver communication is robust for a variety of vehicle-vehicle and vehicle infrastructure safety applications

    • Range (300m), update rate (10-20 Hz), and latency requirements (50-100 ms) of Task 3 safety applications were met in preliminary tests

    • Better than expected performance with SUV/Van obstructions

    • Degraded performance, as expected, under obstructions from large trucks and buildings/terrain. More testing and analysis is required

  • Areas for future study include transmission power variation, and multi-sender, multi-receiver scenarios


Outline
Outline Requirements

  • VSC Project Background, Project Tasks & Deliverables

  • Tasks 1, 2, 3 and 4 Progress and Findings

  • Tasks 5 and 6 Progress and Findings

  • Summary and Next Steps


Task 5 participate in and coordinate with dsrc standards committees
Task 5 - Participate in and Coordinate with DSRC Standards Committees

  • Lower layer DSRC standard - ASTM to IEEE 802.11

    • Benefit – IEEE 802.11 credibility and acceptance

    • Issue – potential for delayed approval (possibly 2005)

    • FCC rulemaking currently follows precursor ASTM standard, but may cause delay if IEEE changes necessitate revision

  • Upper layer DSRC standards being developed in another IEEE committee

  • DSRC security standard development in another IEEE committee

  • VSCC actively participating in these DSRC standards development activities


Additional dsrc standards progress
Additional DSRC Standards Progress Committees

  • VSCC provided information to new Alliance of Automobile Manufacturers (AAM) working group

    • AAM defining DSRC standard vehicle message set

    • Intended for SAE vehicle safety messaging standard

  • SAE formed new committee to develop message set and data dictionary standard for DSRC (first meeting 12/03)

  • VSCC plans to participate in this SAE standards development activity


Task 6a protocol research subproject
Task 6A - Protocol Research Subproject Committees

  • Develops informed VSC recommendations to create efficient, robust, and reliable communications protocol

  • Focuses on how to improve broadcast reliability in various traffic conditions

  • Status

    • Test kit enhanced for collecting received signal strength data

    • Initial enhancement of DSRC simulator ready and in use

    • Mathematical framework under discussion

    • Simulation tests for various broadcast reliability enhancements in development


Task 6b security subproject
Task 6B - Security Subproject Committees

  • Addressing greater security consequences for vehicle safety communications

  • Participating in IEEE P1556 working group meetings

    • VSCC leading security for safety applications

  • Created vehicle safety communications threat model and outline of security services

  • Defining security solution constraints

  • Starting description of security architecture and protocol


Task 6c antenna subproject
Task 6C - Antenna Subproject Committees

  • Developing optimized antennas for DSRC

  • Determine antenna performance and placement requirements per lower layer standards and OEM guidance

  • Design and characterize antenna variants optimized for 5.9 GHz DSRC

  • Build reference antennas for DSRC research

  • Supplier selected, now developing candidate designs

  • Target March ’04 completion


Outline1
Outline Committees

  • VSC Project Background, Project Tasks & Deliverables

  • Tasks 1, 2, 3 and 4 Progress and Findings

  • Tasks 5 and 6 Progress and Findings

  • Summary and Next Steps


Summary
Summary Committees

  • VSCC is encouraged by the testing to date

  • Initial tests indicate that DSRC can perform well in most of the conditions examined in the current testing:

    • The expected degradation from large vehicles, structures, and terrain obstructions was observed in some cases. It is not expected this will have a severe impact on safety applications

    • More testing and research is planned to examine additional conditions

  • Simulation testing is underway

  • The transition to the IEEE lower layer standard has benefits, but also some risks

  • The VSC project continues to have a positive impact on the focus and progress of DSRC standards development


Next steps
Next Steps Committees

  • Continue field testing to complete defined test scenarios and validate/refine communications requirements

  • Continue simulation testing to understand and refine communication mechanisms in dense traffic environments

  • Continue active standards participation to ensure developing standards effectively support safety

  • Design candidate security architecture and protocol to address threat model and constraints

  • Develop optimized DSRC vehicle antenna reference designs


Briefing agenda1
Briefing Agenda Committees

10:00 – 11:00 Executive Overview (F. Ahmed-Zaid, G. Peredo)

Task 4: Refinement of Vehicle Safety Applications

11:15 – 11:35 - Overview (H. Krishnan)

11:35 – 12:00 - Field Testing (J. Bauer)

12:00 – 1:00 Lunch

Task 4: (continued)

1:00 – 1:25 - Field Testing (E. Clark)

1:25 – 1:45 - Simulation Testing (D. Jiang)

1:45 – 2:00 Task 5: Participate in and Coordinate with DSRC Standards Committees and Groups (T. Schaffnit)

2:00 – 2:45 Task 6: Test and Validation of DSRC Capabilities

- Subproject 6A: Protocol Research (D. Jiang)

- Subproject 6B: Security (E. Clark)

- Subproject 6C: Antenna (S. Tengler)


ad