This project aims to design a railway accident identification and alert system using a GSM modem and wireless communication technology. A vibration sensor attached to each train coach will detect accidents and signal the microcontroller. The microcontroller will then send an SMS alert about the accident through the GSM modem, including the affected coach number. It will also activate a buzzer for audible alerting and display the accident status on an LCD screen. The goal is to quickly notify people of railway accidents using this wireless technology.

1. Head office Buildings, OP: 3nd floor, Krishna Reddy P: ICICI ATM, Ramalingapuram, Nellore
www.pvrtechnology.com, E-Mail: pvrieeeprojects@gmail.com, Ph: 81432 71457
RAILWAY ACCIDENT IDENFITICATIONAND ALERT SYSTEM
ABSTRACT
This project is aimed to design a railway accident identification and alerting system by using
wireless communication GSM technology.
A GSM modem provides the communication interface. It transports device protocols
transparently over the network through a serial interface. A GSM modem is a wireless modem
that works with a GSM wireless network. This GSM Modem can accept any GSM network
operator SIM card and act just like a mobile phone with its own unique phone number.
Advantage of using this modem will be that you can use its RS232 port to communicate and
develop embedded applications. Applications like SMS Control, data transfer, remote control
and logging can be developed easily. The modem can either be connected to PC serial port
directly or to any microcontroller. It can also be used in GPRS mode to connect to internet and
do many applications for data logging and control. In GPRS mode you can also connect to any
remote FTP server and upload files for data logging.
This GSM modem is a highly flexible plug and play quad band SIM300 GSM
modem for direct and easy integration to RS232 applications. Supports features like Voice, SMS,
Data/Fax, GPRS and integrated TCP/IP stack.
This project is designed in such a way that a GSM modem is interfaced to the controller using
serial communication. The main aim of this project is to alert people from railway accidents by
using vibration sensor. A vibration sensor is interfaced to the controller. This sensor can found
railway accidents. Each railway coach contain single vibration sensor. If train move normally no
vibrations occurr.If accident occurs any one of the sensor in train must be activated and
microcontroller takes signal from the sensor. After detecting pulse from sensor microcontroller

2. Head office Buildings, OP: 3nd floor, Krishna Reddy P: ICICI ATM, Ramalingapuram, Nellore
www.pvrtechnology.com, E-Mail: pvrieeeprojects@gmail.com, Ph: 81432 71457
sends SMS to particular numbers through GSM modem and for alerting buzzer will be
on.Microcontroller sends accident report along with coach number which is affected by accident.
This effected coach number find out by sensor physical placing in coaches. A buzzer will be
interfaced to the controller for alert. A 16X2LCD will be interfaced to the controller for
displaying the status of the sensor.
This project uses regulated 5V, 500mA power supply. 7805 three terminal voltage
regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac
output of secondary of 230/12V step down transformer.
TECHNICAL SPECIFICATIONS:
HARDWARE:
Micro controller : AT89S52
Crystal : 11.0592 MHz
GSM modem : SIM 300
Line driver IC : MAX232
Vibration sensor
LCD : HD44780
Buzzer
Power supply
Transformer : 12V step down
Filter : 1000uf/25V

3. Head office Buildings, OP: 3nd floor, Krishna Reddy P: ICICI ATM, Ramalingapuram, Nellore
www.pvrtechnology.com, E-Mail: pvrieeeprojects@gmail.com, Ph: 81432 71457
Voltage Regulator : 7805
SOFTWARE:
Keil micro vision
Proteus
UC flash
APPLICATIONS:
 Transports
 Railway departments
 Public purpose
BLOCK DIAGRAM:
8
0
Power
Supply
LCD display

4. Head office Buildings, OP: 3nd floor, Krishna Reddy P: ICICI ATM, Ramalingapuram, Nellore
www.pvrtechnology.com, E-Mail: pvrieeeprojects@gmail.com, Ph: 81432 71457
POWER SUPPLY BLOCKDIAGRAM:
Stepdown
Transformer
Filter Regulator OutputBridge
Rectifier
GSM
/GPRS
Modem
Max-232
Vibrationsensor1
Vibrationsensor2
Vibrationsenso3
Vibrationsensor4
Buzzer