1. GSM HOME AUTOMATION WITH SECURITY SYSTEM
What is GSM ?
GSM, which stands for Global System for Mobile Communications, is a digital cellular
radio network operating in over 200 countries world-wide. It provides almost complete
coverage in western Europe, and growing coverage in the Americas, Asia and elsewhere.
Of special interest is the capability of the GSM network to be used for data computing.
Most people think of voice calls when they think of cellular phones. But because GSM is
digital, you can connect your GSM-enabled phone to your laptop computer and send or
receive e-mail, faxes, browse the Internet, securely access your company's LAN/intranet,
and use other digital data features including Short Messaging Service.
The unique roaming features of GSM allow cellular subscribers to use their services in
any GSM service area in the world in which their provider has a roaming agreement. That
means the phone you use in France could work in Germany, Australia, Finland and even
China, depending on your provider's roaming agreements.
GSM-enabled phones have a "smart card" inside called the Subscriber Identity Module
(SIM). The SIM card is personalized to you and you alone. It identifies your account to
the network and provides authentication, which allows appropriate billing.
Aim of project
Imagine being able to control all the electrical appliances of your home from virtually
any place your are in the world! For example, say one cold winter day, you are stuck in
traffic on the motorway after a long day at work. By pressing a few keystrokes on your
mobile phone, you activate a macro which turns on the heating, prepares your Jacuzzi,
switches on your electrical fireplace and lava-lamps at your premises.
In today's times the GSM mobile terminal has become one of the items that is constantly
with us. Just like our wallet/purse, keys or watch, the GSM mobile terminal provides us
with a communication channel that enables us to communicate with the world. The want
for a person to be reachable or to call anyone at any time is very appealing.
Using the cybernetic concept of action space, we in fact extend the action space of the
human with the mobile terminal, enabling the subscriber to talk to another subscriber and
thus exchange information, issue or receive commands.
In this project, we will explore ways of extending this notion of Home Automation by
applying mobility to it using various technologies that are available in our information
age. These technologies include mobile communication devices and the Internet which
are becoming part of our everyday lives.
89 RANGARAJAPURAM MAIN ROAD,KODAMBAKKAM,CHENNAI-24
PL VISIT www.maastechindia.com,mobile:098402 34766

2. Working of the project:
As mentioned earlier our project consist of sensors for detecting abnormal
situations and the data is sent to a remote user through a GSM Modem connected to the
project. (Intruder sensed, Flame sensed).
Also the user can send a SMS Message to activate a device which is connected to
the project. For eg a Tubelight or fan any electrical device.
Hardware Spec:
Intruder Sensor (Infrared TX and RX)
Flame sensor (LDR – light dependant resistor)
DsPIC 30F4013 Microcontroller
GSM Modem (SIM 300S Module)
Relay Circuits
Signal processing circuits
Software Spec
PIC C 30C Compiler
MPLAB IDE
The block Diagram of the project is given below
89 RANGARAJAPURAM MAIN ROAD,KODAMBAKKAM,CHENNAI-24
PL VISIT www.maastechindia.com,mobile:098402 34766

3. Block Diagram:
GSM MODEM
SIM300s
Module
dsPIC
Power Supply
Unit Microcontroller
dsPIC30f4013
Relay Driver
Signal Conditioning
Unit (FWPR)
Relay1 Relay2
Signal Conditioning CKT
for Flame & Obstacle
Fan Light
Flame Intruder
Sensor Sensor
89 RANGARAJAPURAM MAIN ROAD,KODAMBAKKAM,CHENNAI-24
PL VISIT www.maastechindia.com,mobile:098402 34766