This document discusses using Bluetooth technology to automatically control car speeds and implement emergency braking to prevent accidents. It describes how Bluetooth can communicate with up to 8 devices within 100 meters to monitor car speeds. When two cars come within 10 meters, an automatic braking system engages that uses hydraulic valves and pressure to increase braking force and slow the vehicles. The system aims to reduce accidents caused by human error and high speeds.

1. CAR SPPED CONTROL
CAR
USING BLUETOOTH
SPEED
CONTROL
V
USING
BLUETOOTH

2. INTRODUCTION
ACCIDENT
EFFECTS
STATISTICS
BLUETOOTH
EQUIPMENT
WORKING
COMPONENTS
OPERATION
AUTOMATIC BREAKING PUMP AND VALVES
AUTOMATIC BREAKING SYSTEM
FUNCTIONS OF HYDRALUIC VALVES
CONCLUSION

3. World is plagued by Accidents.
Human errors.
Need an alert for the driver.
Checking the speed of the car is
important.

4. High speeds leads to accidents.
Accident
=
Short distance
+
High Speed

5. Death
Injuries
Traffic
problems
Loss of Asserts

6. 1 person dies every 6 minutes,
10 are injured in the same
time frame.
India's share of global car
accidents is 10%
6 % of the world's road
accident deaths happen in
India.

7. Bluetooth can communicate with 8 other
devices simultaneously .
Hence we can check the speeds of eight cars
simultaneously.
Range of communication is up to 100 meters
of each other.
100 mts.

9. The group of eight devices is
known as piconet.
Piconet is a collection of
Master and slaves.
The frequency of 2.4 GHz is
shared among all the devices
in the piconet.

10. Master is a device
which controls all
the devices around
it.
Slave is a device
which is being
controlled by a
master.
Here A,B are masters and S1 to S6 are the
slaves.

11. >100 mts.
If the distance between two
vehicle is within the 100m the
Bluetooth devices get enabled.
<=100 mts.

12. <10 mts.
If the distance come closer
within 10m the automatic
braking system takes the
control.

13. After the speed of the car is
reduced, the hydraulic valves
decreases the pressure on the
braking circuit, thus
effectively decrease the
braking force on the wheels.
100 kmph 10 kmph

14. Four main components to an
automatic braking system.
1)Speed sensors
2)Pump
3)Valves
4)Controller

15. Short distance, low power radio
operating in the unlicensed spectrum of
2.4 GHz and using a nominal antenna
power of 20 dBm.
At the 20 dB the range is 100 meters,
meaning equipment must be Within
100 meters to each other (about 328
feet) to communicate using the
Bluetooth standard.
With the help of this technology we can
send data to the eight devices.

16. A computer constantly monitors
the distance between each of
these cars .
When it senses that the car is
getting too close it moves the
hydraulic valves to increase the
pressure on the braking circuit.
It effectively increasing the
braking force on the wheels.

18. Controls the speed of the car.
control signal the computer
Travelling car braking system
start stop

19. In position one, the valve is open;
pressure from the master cylinder is
passed right through to the brake.
In position two, the valve blocks the
line, isolating that brake from the
master cylinder.
This prevents the pressure from rising
further should
the driver push the brake pedal harder.
In position three, the valve releases
some of the pressure from the brake.

20. The Bluetooth technology is being widely
adopted by the Industry leaders.
The possibility for new applications is very
exciting with this Versatile technology.
It provides a simple, logical answer to all
the
Problems-which is built a single common
radio into every mobile computer.
It neither do companies have to worry about
WAN, nor do communication companies
need to worry about building external
cables.

21. ANY
QUESTIONS
??????