Nowadays there is a rapid increase in the occurrence of the Road accidents. This project is about a system which is developed to automatically detect an accident and alert the nearest hospitals and medical services about it by using MEMS sensor and GPS, GSM for release Air bag or vibration and tilt of the vehicle. It sends both text message and recorded voice call alert to the nearest hospitals, police control room, GPS enabled ambulances and authorized persons (relatives and friends). Additionally an emergency button is provided with Aurdino microcontroller, which on pressing activates the device and sends a panic message and call. This can be done in the case of vehicle doors locked, any panic situations, for security purposes if anyone attacks the vehicle Whenever an accident occurs MEMS sensor detects the vibration of the vehicle and sends the mechanical force to the microcontroller, by using vehicles GPS system it fetches the location and sends message and voice call through GSM by mentioning the vehicles number and intimating about the location message. Radar sensor measures the speed of the vehicle using doppler effect.

1. Presented by..
Theja kumar M
Harsha varma R
Sri ganesh V

2. Due to increased accidents, the victims need immediate medical help
This project reduces the time gap between the medical assistance
reaching the patients
Helps in finding the accused
Speed of the vehicle is calculated
Over speed alerts are provided for
rash driving
Alcoholic driving can be detected

3. Accident is detected using MEMS vibration sensor for Airbag release,
vibration and tilt of the vehicle
Speed is calculated using HB100 Radar sensor
Alcoholic driving can be detected using MQ3 sensor
GPS receiver fetches location of the vehicle
This sensed information is sent as a message and automated recorded voice
call is sent to authorized persons using GSM technology
Authority is to 108, nearby hospitals, Police control room & relatives
Emergency button is provided for panic situations to activate the Module

4. No intimation of accidents if occurs in late
nights or in human less areas
Response of medical services are delayed in
the case of late intimation
 Many life’s are lost due to unavailability of
medical assistance intime
Speed alerts aren’t provided for rash driving
Alcoholic driving leads to many accidents it
should be detected automatically

5. Whenever any accident occurs MEMS
sensor detects the vibration or tilt of the
vehicle and sends signal to Arduino
microcontroller by Newtons 2nd law
GPS receives the location from satellite
GSM module generates automated voice
call to the emergency services
Call specifies the vehicle number and
intimation about location
To reduce the accidents by overspeed
alerts and alcohol detection alerts are given

6. Radar Speed Sensor:
Records the speed of moving vehicle
Works based on Doppler principle
It transmits a 10 GHz microwave frequency
electromagnetic signal and waits for the signal to
receive back and monitors the shift in frequency
signal and calculates speed
Sends speed alert when crosses the limit

7. Alcohol Sensor :
MQ3 sensor is used for alcohol detection
Detects the attentiveness of alcohol gas in the air and an
analog voltage is an output
The sensing range is from 0.04 mg/L to 4 mg/L
Stops the vehicle engine if the driver is over drunk
The sensor operates temperatures ranging from -
10 to 50

8. Continuous vehicle speed monitoring
 Stolen vehicle can be tracked easily
Accident alerts and For safe road transportation
Drunken divers can be fined penalty automatically with alcohol detection
Dependencies
Network is must for voice calling through GSM
Improper climatic conditions affect the GPS accuracy
Sensors must be placed perfectly for proper detection

9.  An android application can be devloped for old aged people and
Physically challenged for fall detection using vibration sensor
Over speed automatic fine deduction when crosses the speed limit
The sensors used in this project also wearable and light weight and the
transmission range
Car speed control based on road condition (for example : pothole
detection, speed breaker dtection an oil spills dtection

10. QUERIES PLEASE