The smart helmet system uses sensors and modules to enhance rider safety. It includes an alcohol sensor to prevent riding if intoxicated, GPS and GSM modules to track location and send alerts if an accident is detected, a temperature sensor and fan to regulate internal temperature, and a vibration sensor to detect accidents. The system aims to automatically respond to risks and send alerts to reduce accidents and save lives. It links the helmet to the bike ignition to prevent starting without a helmet.

1. SMARTHELMET
SRI HARSHINI VEMULA
III/IV B.TECH
RVR & JC COLLEGE OF ENGINEERING, GUNTUR - 522019

2. OUTLINE
• Introduction
• Block diagram
• Hardware/software
• Working
• Advantages/Disadvantages
• Features
• Conclusion
• Reference

3. A helmet aims to reduce the risk of serious head and brain injuries by reducing the impact of a
force or collision to the head.
Many people don’t realize that helmet prevents from skull fractures. And we see many accidents
in the day to day life due to alcohol consumption so we are trying to implement alcohol sensors
within the helmet.
We are using GPS module to locate the position of ride on the two-wheeler with high accuracy
positioning, Since too much use of the helmet internal temperature rises which is not comfortable
for the rider, hence we make use of exhaust fan to maintain the temperature.

4. BLOCK DIAGRAM
BLOCK DIAGRAM OF SMART HELMET SYSTEM

5. BLOCK DIAGRAM OF RECIEVER & STARTER SWITCH

6. HARDWARE REQUIREMENTS:
*Microcontroller 89 s52.
*LCD display 16x2.
*GSM modem (900 MHz)
*GPS receiver (2.3 GHz)
*RF transmitter and receiver (47 MHz)
*Alcohol sensor
*vibration sensor
*Temperature sensor
*Solar cell 6 volt.

7. SOFTWARE:
• Programming in C using keil software

8. WORKING
MICROCONTROLLER(89s52)
• It is 8bit microcontroller with 40pins
• It has three 16 bit counters
• It also has 32 programmable I/o lines with flash memory
• It is used to locate the worker’s position & to send conditional
SMS if there is any risk of life.

9. LCD(16×2)
Liquid-crystal-display
16×2 lcd is used for displaying latitudes and longitudes
16×2- 16 characters in 2lines.
GPS MODULE(2.3GHz)
Global Positioning System
It is used to locate the position of
two-wheeler.
GSM MODEM(900MHz)
Global System for Mobile communications.
It is used for autonomous communication

10. TEMPERATURE SENSOR
To sense the temperature inside helmet if more than 30° it turns on
exhaust fan.
VIBRATION SENSOR
It used to sense the vibration when accidental occur.
ALCOHOL SENSOR
It is liquid sensor(IQL25) fixed to the helmet to sense the alcohol
consumption.

11. 1. It can be used in real time safety system.
2. We can implement the whole circuit into small module.
3. Less power consuming safety system.
4. This safety system technology can further be enhanced into four wheeler also by replacing
the helmet with seat belt.
5. All the components required are easily available.
6. No Manual attention is needed.
7. Reduces driver's job by automatically responding to the approaching vehicles.
8. Circuit is flexible, without much change in the circuit; it can be used with any 4wheeler.
9. Automatically controlled & Easy to use.
ADVANTAGES

12. DISADVANTAGES
• GSM network is required.
• If helmet is stolen, the bike cannot be started.
• This project usage of relays leads to consume more power.
• One time investment cost.

13. FEATURES
• It will send a message of location automatically when he/she met an accident with helmet on.
• RF transmitter and receiver are used for starting the two wheeler, if she/he is not wearing the
helmet, the two-wheeler will not start.
• The alcohol sensor is used to sense the alcohol consumption and it will lock the ignition if drunk.
• It will automatically switch on air fan inside helmet when the temperature is high.
• The solar cell is generating power for the system.
• It can be tracked easily with location when two-wheeler is stolen.

14. OUTCOME

15. Conclusion
The smart helmet system with advanced alcohol sensing
including GSM and GPS Technology is used to
authenticate with bike to unlock the ignition of the two-
wheeler.
The life of a rider on two wheelers can be saved from
the road accident with standard protection with safety
feature.
The present situation in our country we are not using
this type of two wheeler and this technology.
Manual efforts and human errors, we need to have some
kind of automated system monitoring all the parameters.

16. REFERENCE:
*Principles and Applications ofGSM by Vijay K Garg
*http:www.google.co.in
* http: www.en.Wikipedia.org.com
*http:www.techrepublic.com
*http:wwww.atmel.com
* http:www.zDnet.uk.net