The document discusses various engineering solutions to prevent road accidents, emphasizing the importance of technology and vigilance. Key technologies include Bluetooth for driver alerts, automatic brake systems, eye blink detectors, and alcohol detection systems. It concludes that while technology can help, individual responsibility is crucial in accident prevention.

2. INTRODUCTION
“DOCTORS COME AFTER ACCIDENT
BUT WE ENGINEERS CAN PREVENT
ACCIDENT”

3. CAUSES
• Unsafe act of people
• Unsafe physical or
mechanical
conditions
• Act of nature
3 E’s
• Engineering
• Education and
training
• Enforcement of
policies and
procedure

4. ROAD ACCIDENT STATISTICS

5. BLUETOOTH
• Connectivity
• Tool used to communicate with other devices
within a specified range
• BLUETOOTH RADIO – Short distance, low
power radio operating in the UNLICENCED
SPECTRUM of 2.4 GHz
• Capable of connecting 8 devices at a time
• The group of 8 devices is called as PICONETS

6. WHY BLUETOOTH?
• OVER RADAR:
Time - Radar can take up to 2 seconds
to lock on
Radar has wide beam spread (50 ft
diameter over 200 ft. range)
Cannot track if deceleration is greater
than one mph/second
More interference sources

7. BLUETOOTH
• The road accidents can be avoided if there is a
mechanism to alert the drivers
• This can be done by monitoring the distance
between near by cars
• Alert the driver whenever the distance
becomes too short
• Bluetooth technology serves this process

8. OPERATION
• To communicate with bluetooth standard the
equipment must be within 100 m (at 10 db)
• Any car comes close bluetooth device sends
warning signal to the car
• Based on the control signal
Reduces the speed
Overtake the nearby car

9. AUTOMATIC BRAKE SYSTEM
• The manipulated signal is given to the braking
system
• Four components of automatic braking system:
Speed sensor
Pump
Valves
Controller

10. MODES OF OPERATION
• Position 1 :
Open
• Position 2 :
Block
• Position 3 :
Release

11. ONE TOUCH OVERTAKING
SYSTEM
• Red car want to overtake
the blue car
• Sends control signal via
bluetooth to the blue car
• After the
acknowledgement from
the blue car red car can
overtake without any
collision

12. VIDEO BASED MONITORING
• Digital video camera is mounted in front part
of the car
• The captured video is transmitted via bluetooth
to the trailing car
• Driver of the trailing car will take wise action

13. EYE BLINK DETECTOR
• A new technology to prevent accident
• Mostly effective in night driving
• Driver’s drowsiness is recognized as an
important factor

14. EYE BLINK DETECTOR
• Involves measure of eye blink using IR
sensor
• IR transmitter – transmits the IR rays in our
eye
• IR receiver – receives the reflected IR from
our eye
• Output is given to alarm circuit

15. BLOCK DIAGRAM

16. FUTURE SCOPE OF EYE BLINK
DETECTOR
• Eye blink detector in combination with
bluetooth technology can alert nearby cars
• Alert can be given to the driver via fake call
• Instead of alarm, automatic braking system can
be used to reduce the speed of the car
• Incase of transport vehicles, alert can be
directly sent to their owners

17. ALCOHOL DETECTOR
• Major reason for road accidents is DRUNK
AND DRIVE
• For the safety of the people seating inside

18. OPERATION
• Install the sensor inside the car
• Produces an signal if the driver is detected as
drunk
• This signal output is sent to the
microcontroller through the comparator IC
• Buzzer is turned on
• Ignition is deactivated

19. FUTURE DEVELOPMENT
• We can implement GSM technology to inform
the relatives or owners of the vehicle about the
alcohol consumption
• We can implement GPS technology to find out
the location of the vehicle
• In worst case, near by cars can alerted

20. CONCLUSION
• Even though many technologies are there the
alertness is up to the individual
• Accidents can only be prevented by not violating
the rules
• Use these technologies to get benefited
• Thus we conclude that we engineers must
contribute ourselves to invent new technologies
in order to prevent accidents.
“Preventable accidents, if not prevented due to our
negligence, is nothing short of murder”