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Inter-vehicle Communication for Collision Avoidance

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Umair ali khan

Muhammad Asad ullah

Lutf Ur Rehman

Supervisor:

Dr. Sahibzada Ali Mahmud

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Contents

• Motivation

• Application Levels

• Methodology• • Hardware• • Conclusion.

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Introduction

Study shows - “About 60% roadway collisions could be avoided if the operator of the vehicle was provided warning at least one-half second prior to a collision” (- US. Patent No. 5,613,039)

Constraints of human drivers’ perceptionLine-of-sight limitation of brake lightLarge processing/forwarding delay for emergency events.

Accidents have been taking thousands of lives each year

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1. Line of Sight Limitation

What’s in front of What’s in front of that bus ?that bus ?

What’s behind What’s behind the bend ?the bend ?

On rainy daysOn rainy days

On foggy daysOn foggy days

Constraints of human drivers’ perception

Fig.1

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2. Large forwarding delay for emergency events.

Constraints of human drivers’ perception

Three Cars, namely

Car A

Car B

Car C

Reaction time ranges from 0.7sec to 1.5sec

Animation. 1

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• The system will measure the distance covered between the instant, the brakes are applied till the vehicle stops, moving at variable speeds.

• The time elapsed after applying the brakes till it stops.

Achievements

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Application Levels

Vehicle-to-Vehicle(V2V) Communication can bring out the following achievements.

Ease traffic flow on the congested roads.Emergency Braking of a preceding vehicle.Reduces the accidents in case of emergency warnings delay.Will help in supporting large number of vehicles on the road.improve the work in the field of vehicle to vehicle communication.

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Hardware

• Step down transformer ( i/p AC 230v 50 hz o/p AC 12v)

• Full wave bridge rectifier.• Voltage regulator (D313 E184).• Permenant magnet DC motor (1.5-10v).• Magnetic pulse sensor.• Pic 18F452 .• LED tech 51128. • CD4026BE E4 decade counter.• NE555P TIMER.

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for a vehicle participating in V2V communication

Circuit diagram

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555 timer connected with 4026BE

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Results

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Conclusion

Hence usage of this system can highly increase safety and efficiency of transportation system .

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THANK YOU