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