FIRE DETECTION AND ELETRICAL POWER ON/OFF CONTROL IN HOME/INDUSTRY

USING GSM

BY

P. SAIKIRAN(12631A0469)M.SOUJANYA(12631A0488)S.VEERANNA(12631A04A7)N. SRINATH(12631A0496)

Under the Guidance of S. BALAIAHM.Tech,(Ph.D)

Asso. Professor

Reasons for choosing this project

Objective of this project is to control home/industry electrical appliances and fire detection from remote area.

There are many home wireless based devices for controlling processes, but they are more expensive.

Increase in technology

AIM

The main aim of this project is to develop a system based on Embedded micro controller ,which is used for controlling electrical appliances in home or industry and fire detection using GSM.

CURRENT SCENARIO

The healthy person is able to sense multiple aspects of a fire including the heat, flames.

For this reason, most fire alarm systems are designed with one or more manual alarm activation devices to be used by the person who discovers a fire.

In this system we can remotely control the devices.

PROPOSED SCENARIO

we are going to not only control the devices but also providing fire sensor for fire detection and effective control of electrical power to the apparatus, machines from remote place.

Whenever a fire accident happens in the home or industry the fire sensor senses the fire

This is the project make use of modern communication technologies and it is used in emergencies.

BLOCK DIAGRAM

HARDWARE & SOFTWARE TOOLS

Microcontroller AT89S52GSM modemMAX232Temperature sensor (LM35)TRIACLCDKeil complierProteus

What is AT89S52 ? 8051 based full static CMOS controller 32 I/O lines Three 16-bit timers/counters 8-interrupt sources 2 DPTRs 8k flash memory 256 bytes on-chip RAM

Features of 89S52

8K bytes of In-system programmable flash memory 4v to 5.5v operating range Fully static operation: 0Hz to 33MHz Low power idle & power down modes Fast programming time

PIN DIAGRAM OF AT89S52

What is GSM Modem ?

Accepts a SIM card & operates over a subscription Internet connectivity Transmitting & Receiving SMS or MMS messages Narrowband TDMA technique for Transmitting

signals It has an ability to carry 64Kbps to 120Mbps of data

rates

Some GSM Technologies are

2.5G Technologies GPRS & EDGE

3G Technologies WCDMA,UMTS,HSDPA & HSUPA

Features of GSM

Highly reliable Simple to use & low costSMS based remote control & alertsSecuritySensor monitoring

What is MAX 232 ?

RS 232Serial communication dataConnect microcontroller to other devices i.e., PC,GSM,GPRS,GPS8-bit data transfer at a time

What is LM35 ?

Pins : Vcc , GND , output To measure temperature with electrical

output, proportional to temperature in oCTemperature range -55 to 150 oCUsing conversion factor find output

interms of oCTemperature ( oC) = Vout * (100 oC/V)

TRIAC

• The TRIAC is a three terminal semiconductor device for controlling current.

• It gains its name from the term triode for alternating current.

• TRIAC is a bidirectional device.

What is LCD ?

It displays alphabets, Greek letters, punctuation marks, mathematical symbols etc

Low price Instead of LED we LCD because In LEDs limited numbers & characters used And for easy programming

POWER SUPPLY

LED

LED

1k

- +

IN4007 * 4

GND

9-0-9Vac/1Amp

1000uF/35V

7812

POWER SUPPLY

+5V

+12V230VAC50Hz 2.2k

7805

What is keil compiler ?

Is used to write ,compile ,and debug embedded programs

It encapsulates A project manager A make facility Tool configuration Editor A powerful debugger

WORKING PRINCIPLE

At the transmitter side, the user sends an SMS to the GSM modem using AT commands indicating which device is to be controlled.

At the receiver side, Microcontroller controls the devices through TRIAC’s depending on the code received by the GSM modem.

When Fire occurs then the load is going to switch OFF automatically and information send to the user through the SMS.

ADVANTAGES

Easy to constructMore secureLess complexity

DISADVANTAGES

If the microcontroller fails, then it leads to catastrophe.

User can make mistake while typing the message format.

APPLICATIONS

It is useful in time maintenance applications.Remote device control Detection of flame, gas breaks and water spills.To run any electrical and electronic appliances easily. It is used in electrical sub stations to switch ON/OFF

the power supply without using man power.

CONCLUSION

We develop a general purpose electronic circuit design that can control and monitor a variety of home appliances and fire sensor with interface that can be plugged into GSM modem.

The system can automatically switch ON and OFF the devices remotely using SMS.

FUTURE SCOPE

Right now we have designed the project for control of two devices but it can be designed for more number of devices.

It can be further expanded with a voice interactive system facility.

A feedback system can also be included which provides the state of a device (whether it is on/off) to the remote user.

THANK YOU

Quires..?