Vehicular Sensor Networks

... Kaduru Venkatesh

INTRODUCTION ARCHITECHTURE NETWORKING PROPERTIES APPLICATIONS CONCLUSION

OVERVIEW OF VEHICULAR SENSOR NETWORKS

The rate of accidents on highways has been growing in an ascending mode, as per the report of the national high way traffic safety administration (NHTSA), in us only vehicles crashes on the highways resulted in the loss of 40,0000 lives.

It was therefore, necessary to give better safety.

In previous decades passive safety systems like safety belts, airbags were widely used.

After that abs(anti brake system), esp(electronic stabilty programs) are being used.

INTRODUCTION

The Important Components Of Its (Intelligent Transportation System) Is VANET (Vehicular ADhoc Network) In Which Vehicles Are Equipped With Short Range And Medium Range Wireless Communication

Here we have two kinds of communication

1. v2v(vehicle to vehicle )

2. v2i(vehicle to roadside units).

ArchitectureMobile sensor nodes: these are embedded onboard vehiclesStationary sensor nodes (rss) : They are deployed in a predetermined distance beside the road.Base Stations : They are police traffic control check posts, fire fighting stations etc…

RSS96 RSS98 RSS100RSS102

ACCIDENTRSS97 RSS99 RSS101

SCHEMATIC VIEW OF ACCIDENT CASE

GPS signals are under the effect of the following which attenuate them:

Delay of troposphere and ionosphere Orbit errors Obstacles : Buildings , trains etc..

Hardware constraints: Dependency on GPRS system online Less accuracy ( upto 15 meters in positioning and 0.5kmph

for velocity)

Applications:Safety Applications:

Velocity monitoring Accident notification Cooperative collision avoidance

Convenience Applications: Congested road notification Electronic penalty bill

Commercial Applications: Roadside advertising and marketing

Conclusion:

With respect to the future works on this proposal , the rate of accidents and followed by it the number of causalities and injuries will be reduced

THANK YOU…!