1 Electrical and Computer Engineering Team Pishro-Nik and Ni Chris Comack - Simon Tang - Joseph Tochka - Madison Wang Car-to-Car Communication for Accident Avoidance April 16, 2009 Professor Pishro-Nik Advisor, Assistant Professor, ECE Professor Ni Advisor, Assistant Professor, CEE
Team Pishro-Nik and Ni Chris Comack - Simon Tang - Joseph Tochka - Madison Wang. Car-to-Car Communication for Accident Avoidance. April 16, 2009. Professor Pishro-Nik Advisor, Assistant Professor, ECE. Professor Ni Advisor, Assistant Professor, CEE. General Overview – Big Picture. - PowerPoint PPT Presentation
Text of Car-to-Car Communication for Accident Avoidance
Title of presentation goes hereCar-to-Car Communication
Electrical and Computer Engineering
General Overview – Big Picture
There are many different groups at Universities and in Industry
across America working on Vehicular Ad-Hoc Network to prevent
automobile accidents
Most of these individual groups focus their work on one specific
aspect because there are many different aspects to do them
all
List of different aspects
Medium access control protocols
Multi-channel organization and operation
cost of 230+ Billion dollars per year
Safety and non-safety applications
Project Deliverables
Our system will consist of our project box, a transceiver, an
antenna for the GPS, and a connector for OBD-II
The box will contain:
Process Data and Calculate Accident Avoidance Algorithm
Provide the vehicle driver with an audio warning if necessary
The Global Positioning System receiver
On Board Diagnostic – II integrated circuit
Communicates with Car’s Engine to obtain useful information
Ethernet Interface Board for Transceiver
Communicates with nearby vehicles over Dedicated Short Range
Communication Channel ~ 5.9 GHz spectrum
The antenna’s are attached to the roof of the vehicle
What is our Group going to do?
We are not going to worry about wireless security
We are not going to work directly in forming collision
algorithms
These have been proven by gatherings of transportation
engineers
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Use of Car to Car Communication
Cars 2 & 3 emit audio warning indicating Car 1 is decelerating
rapidly.
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Collision Detection Algorithm
The model is designed to check to see the distance it takes the
lead car to stop is greater than the distance it takes the
following car to stop comfortably.
x*n-1 = xn-1(t) – vn-1(t)2/(2bn-1) // this equates the final
position of the lead car
x*n = xn(t) + [vn(t) + vn(t+τ)] τ /2 – vn(t+τ)2/(2bn) // equates
the final position of // the car including the distance // traveled
during reaction time(τ)
So the above equations find the final position of the cars. Our
program will compute these final positions and compare them. As
described above, the program will warn the driver when the final
position of the lead car to stop is less than the final position of
the following car.
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Use OBD-II (on-board diagnostic connection) to monitor speed,
acceleration, and other information from car’s computer
Standard on all cars made after 1996 – includes 150 million+ cars
on the road in the U.S. today.
Communicate between vehicles using DSRC (Dedicated Short Range
Communication) Transceiver
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Coding of main algorithm
Did not achieve complete integration in time for FPR
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At 42.382928 °N
At 42.394149 °N
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Three Printed Circuit Boards completed
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Joseph Tochka
Old GPS
Solution: Attachment of Atmega128 header to PCB
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Demo of sending packets and gathering GPS data
We worked really hard to get the system fully functional, but did
not get the system fully integrated. We aim to have it functional
by SDP Day.
Thank you for your time