gsm based fire alert system

GSM BASED FIRE ALERT

SYSTEM

PROJECT GUIDE:

MR. NIKHIL SAXENA

ITM UNIVERSE

GWALIOR

SUBMITTED BY:

NISHA KUMARI (EC96)PRACHI KHANDELWAL (EC107)

PRADEEP MISHRA(EC108 )RAHUL PRASAD SHARMA(EC118 )

CONTENTS :• INTRODUCTION • COMPONENTS DISCRIPTION: 1.ATmega8 2.MQ2 SMOKE SENSOR 3.LM35 TEMP SENSOR 4.GSM MODULE 5.LCD• WORKING BLOCK DIAGRAM• CIRCUIT DIAGRAM• PCB LAYOUT• APPLICATIONS• FUTURE ADVANCEMENT

INTRODUCTION: INSTALL..!! INSPECT..!! PROTECT..!!

Fire alarm system provide a means to identify a developing fire through automatic methods.

The main AIM of this project is to develop a system based on embedded micro controller, which is used to protect electrical appliances in home and using GSM and audible alarm system.

COMPONENTS DISCRIPTION:1. ATmega8

2.MQ2 SMOKE SENSOR:

3.LM35 TEMPERATURE SENSOR: LM35 is a precision IC temperature

sensor with its output proportional to the temperature (in oC). The sensor circuitry is sealed and therefore it is not subjected to oxidation and other processes.

With LM35, temperature can be measured more accurately than with a thermistor .

 It also possess low self heating and does not cause more than 0.1 oC temperature rise in still air.   

The operating temperature range is from -55°C to 150°C. The output voltage varies by 10mV in response to every oC rise/fall in ambient temperature.

3. GSM MODULE

GSM (Global System for Mobile) / GPRS (General Packet Radio Service) TTL -Modem is SIM900 Quad-band GSM / GPRS device, works on frequencies 850 MHZ, 900 MHZ, 1800 MHZ and 1900 MHZ.

It is very compact in size and easy to use as plug in GSM Modem. The Modem is designed with 3V3 and 5V DC TTL interfacing circuitry, which allows User to directly interface with 5V Microcontrollers (PIC, AVR, Arduino, 8051, etc.) .

The baud rate can be configurable from 9600- 115200 bps through AT (Attention) commands.

It is suitable for SMS as well as DATA transfer application in mobile phone to mobile phone interface. The modem can be interfaced with a Microcontroller using USART (Universal Synchronous Asynchronous Receiver and Transmitter) feature (serial communication).

4. 16*2 ALPHANUMERIC LCD :

PIN DISCRIPTION : VSS and LED- are reference points (ground). VDD and LED+ are peak points (+5 volt). VEE is used to control contrast. RS is register select pin..........If RS=0: command register is selected. If RS=1: data register is selected. RW is read or write pin..........If RW=0: write operation is performed. If RW=1: read operation is performed. (used to check busy flag.) E is enable pin.....if E=0: the LCD does not care what is happening with R/W, RS, and the

data bus lines...if E=1: LCD is processing the incoming data. D0 - D7, the 8 data bus lines, which perform read/write of data

WORKING BLOCK DIAGRAM:

MICRO

CONTROLLER

ATmega8

LCD DISPLAY

BUZZER

SMOKE SENSOR

TEMPERATURE

SENSOR

GSMMODEM

CIRCUIT DIAGRAM:

PCB LAYOUT:

HARDWARE REPRESENTATION:

APPLICATIONS:

GSM based Fire Alarm system are very useful in remote locations where human interaction is limited. Such systems are useful in mines, industrial areas, factories etc.

House safety

FUTURE WORK:Right now we have designed the project

using GSM but it can designed using GPS as well in which we can track the location as well.

It can be further expanded by using android app so that a notification can be send when fire is detected.