Hi guys, This vehicular sensor networks is based on AD-hoc networks it is a real time project mmm..all most completed in US & UK...in india 50% of the project is completed. ii had sent this ppt to NIT wgl out of 256 ppts only they were selected 12 ppts..in that my ppt is 3rd one...mmm..i felt soo gud at the moment.. if ur interested u can download and add ur thoughts...in the gud manner...

1. Vehicular Sensor Networks
... Kaduru Venkatesh

3. OVERVIEW OF VEHICULAR SENSOR
NETWORKS
∗ INTRODUCTION
∗ ARCHITECHTURE
∗ NETWORKING PROPERTIES
∗ APPLICATIONS
∗ CONCLUSION

4. INTRODUCTION
∗ 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.

5. ∗ 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).

6. Architecture
∗Mobile sensor nodes: these are embedded onboard
vehicles
∗Stationary 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…

7. RSS96 RSS98 RSS100 RSS102
ACCIDENT
RSS97 RSS99 RSS101
SCHEMATIC VIEW OF ACCIDENT CASE

8. 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)

9. Applications:
Safety Applications:
∗ Velocity monitoring
∗ Accident notification
∗ Cooperative collision avoidance
Convenience Applications:
∗ Congested road notification
∗ Electronic penalty bill
Commercial Applications:
∗ Roadside advertising and marketing

10. 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

11. THANK YOU…!