detects vehicles and other obstacles coming from any direction,also alerts the person ,and sends the gps location to the mentioned numbers

1. PRESENTED BY:
G.GEETHIKA
C.POOJITHA
Y.DEVANADHAN
P.BHARGAV LAL KRISHNA REDDY
P.SIVAJYOTHI
Under the esteem guidance of DR.P.JAGADHAMBA

2. CONTENTS
1. Introduction
2. Previous system
3. Proposed system
4. Block diagram
5. Hardware requirements
 ARDUINO UNO
 LCD
GSM
GPS
BUZZER
ACCIDENT SENSOR (Ultrasonic sensor)
POWERSUPPLY
L293D DRIVER

3. CONTENTS
6. Software requirements
 Arduino C
7. Advantages & Disadvantages
8. Future Scope.

4. INTRODUCTION
The main intension of this project is to find the
accident spot at any place and intimating it
through the GPS and GSM networks
The hardware components required for this
project are Arduino Uno microcontroller,
Ultrasonic sensor, GPS module, GSM module, LCD.
In this project the using software is ARDUINO IDE.

5. INTRODUCTION….
The GPS based vehicle accident identification
module contains Ultrasonic sensor, GSM module
and GPS module are connected to the
microcontroller.
Global system for mobile communication (GSM)
technology is used to establish cellular
connection.
Global Postioning System(GPS) is used to trace
the position of the vehicle.

6. PREVIOUS SYSTEM
When an accident occurs, the information only is sent
through GSM but there is no possibility to send the
location of the spot.

7. PROPOSED SYSTEM
This project presents an automotive localization system
using GPS and GSM-SMS services.

8. BLOCK DIAGRAM

9. HARDWARE REQUIREMENTS
ARDUINO UNO
LCD
GSM
GPS
BUZZER
ACCIDENT SENSOR (Ultrasonic sensor)
POWERSUPPLY
L293D DRIVER
•

10. ARDUINO UNO
Arduino Uno is a microcontroller board based on the
ATmega328P.
It has
1.14 Digital input/output pins
2.6 Analog pins
3.16 MHz quartz crystal
4.USB connection
Clear programming
environment and simple.

11. ATMEGA328P
8 Bit microcontroller,131 instructions
20 MIPS at 20 MHz
32KB Flash,2 KB RAM
6 channels 10bit ADC
USART ,SPI , I2C .
23 Programmable I/O lines
1.8 – 5.5 V

12. LCD
LCD display used here is having 16x2 size. It
means 2 lines each with 16 characters.
There are pins along one side of the small
printed board used for connection to the
microcontroller.
There are total of 14 pins marked with
numbers (16 in case the background light
is built in).
Their function is described in the below,
Function Pin Number Name Logic State Description
Ground 1 Vss - 0V
Power supply 2 Vdd - +5V
Contrast 3 Vee - 0 – Vdd
Control of operating 4 RS 0
1
D0 – D7 are interpreted as commands
D0 – D7 are interpreted as data

13. GSM
GSM stands for Global System for Mobile
Communication
A GSM modem is a wireless modem that
works with a GSM wireless network.
A wireless modem behaves like a dial-up
modem
The difference between them is that a dial-
up modem sends and receives data
through of fixed telephone line while a
wireless modem sends and receives data
through radio waves.

14. GSM
The GSM modem used to provide communication from one
place to other.
The GSM module using consist of a Mobile station and SIM.
The commands that are using to provide communication are
AT Commands.
The AT commends specifies the GSM technology and are
related to SMS service.

15. GPS MODULE
GPS stands for Global Positioning System.
The Global positioning system is a space based satellite
navigation system that provides location and time
information.
It is maintained by United States government .
Measure the distance between the GPS receiver with the
satellite GPS by measuring time that radio waves travel
from satellite to receiver.
Formula : Distance = Speed * Time

16. BUZZER
A Buzzer or Beeper is an audio signaling device ,
which may be Mechanical , electro-mechanical, or
electronic .
Typical uses of buzzers include alarms , timers and
conformation of user input such as mouse click or
keystroke.
APPLICATIONS:
• Game shows
• Microwave ovens and other household appliances.
• Sporting events

17. ULTRASONIC SENSOR
Ultrasonic sensor also known as Transceivers when they both
send and receive .
It works on principle similar to SONAR which evaluate
attributes of a target by interpreting the Echoes from sound
waves Respectively.
Ultrasonic sensor generate high frequency sound waves and
evaluate the Echo which is received back by the sensor.
Sensors calculate the time interval between sending the signal
and receiving the echo to determine the distance to an object .
DETECTORS:
Piezoelectric crystals can be used as ultrasonic detectors .

18. POWER SUPPLY
The input to the circuit is applied from the regulated power supply.
The a.c input i.e.230V from the mains supply is step down by the transformer to 12V
and is fed to a rectifier.
The output obtained from the rectifier is a pulsating d.c voltage. So in order to get a
pure d.c voltage, the output voltage from the rectifier is fed to a filter to remove any
a.c components present even after rectification.
Now, this voltage is given to a voltage regulator to obtain a pure constant dc voltage.
230V AC
50Hz
D.C
Output
Step down
transformer
FilterBridge
Rectifier Regulator

19. L293D DRIVER IC
L293D is a dual H-Bridge motor driver, So with one IC we
can interface two DC motors which can be controlled in both
clockwise and counter clockwise direction and if you have
motor with fix direction of motion the you can make use of
all the four I/Os to connect up to four DC motors.
L293D has output current of 600mA and peak output current
of 1.2A per channel. Moreover for protection of circuit from
back EMF output diodes are included within the IC.
The output supply (VCC2) has a wide range from 4.5V to
36V, which has made L293D a best choice.
A simple schematic for interfacing a DC motor using L293D
is shown beside.

20. SOFTWARE REQUIREMENT
Arduino C

21. ARDUINO C
 Arduino C also known as Embedded Software.
Embedded software is computer software written to control
machines or devices that are not runs on and has time and
memory constraints.
This term is sometimes used interchangeably with firmware,
although firmware can also be applied to ROM-based code on a
computer, on top of which the OS runs, whereas embedded
software is typically the only software on the device.

22. ADVANTAGES
The vehicle which has
undergone to an accident can
be identified by using tracking
technology without any delay.
The immediate medication will
be provided to the accident
victims in the remote areas.
DISADVANTAGES
✕In some places where
there is no provision of
GSM networks it is difficult
for communication.

23. FUTURE SCOPE
✿This system can be interfaced with vehicle Airbag system that
prevents vehicle occupants from striking interior objects such
as the steering wheel or window.
✿This can also be developed by interconnecting the camera to
the controller module that takes the photograph of the
accident spot that makes the tracker easier.