SMS BASED HOME SECURITY SYSTEM

foamyflumpΚινητά – Ασύρματες Τεχνολογίες

21 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

75 εμφανίσεις

SM
S

BASED
HOME SECURITY SYSTEM









Submitted by
:




INTRODUCTION
:



Security has been an important issue in the smart home applications.
Conventional security systems keep homeowners, and their property,
safe from intruders. A s
mart home security system, however, offers
many more benefits. A smart home or building is a home or building,
usually a new one that is equipped with special structured wiring to
enable occupants to remotely control or program an array of automated
home e
lectronic devices by entering single command. For example, a
homeowner on vacation can use a Touchtone phone to arm a home
security system, control temperature gauges, switch appliances on or off,
control lighting, program a home theater or entertainment
system, and
perform many other tasks. The WSN data collecting node module is
connected with
Piezoelectric

Infrared Detector, Temperature Sensor,
Smoke Detector and Gas Sensor separately. When the PIR finds that
some people intrudes into the house or when t
he temperature sensor
detects too high indoor temperature or when the gas sensor detects
leakage of gas, the data collecting node will send encoded alarm signal
to the WSN center node through the wireless sensor network established
in home. Once the WSN ce
nter node receives alarm signal, it will send
alarm short message to the users through the GSM module and GSM
network immediately. Similarly the user can also control the various
devices connected with device control unit through SMS. Using Bio
sensors to
measure heart rate and blood pressure from human body this
method is using especially for old people. Biosensor senses data and
send to the owners or users mobile phone. It will send alarm short
message to the users through the GSM module and GSM network
i
mmediately.



HARDWARE USED


1.

89S52 Microcontroller

2.

Max 232 IC.

3.

Voltage regulator 7805.

4.

Diode IN4007

5.

GSM
Modem.

6.

Some other components to produce interrupt.


SOFTWARE USED



1.

Keil u
-
Vision 3.0


Keil Software is used provide you with software development too
ls for
8051 based microcontrollers. With the Keil tools, you can generate
embedded applications for virtually every 8051 derivative. The
supported microcontrollers are listed in the µ
-
vision
.



2
PRO51 Programmer Software


THEORY OF OPERATION


In this proj
ect we interfaced 8051 microcontroller with
sim
-
com 300
modem

to decode the received message and do the required action. The
protocol used for the communication between the two is AT command.

The
microcontroller pulls the SMS received by phone, decodes

it
,
recognizes the

Mobile no. and then switches

on the relays attached to its
port to control the appliances. After successful operation, controller
sends back the acknowledgement to the user’s mobile through SMS
.


AN

INTRODUCTION TO 8051
MICROCONTROLLER:




When we have to learn about a new computer we have to
familiarize about the machine capability we are using, and we can do it
by studying the internal hardware design (devices architecture), and also
to know about the size, number and the size of

the registers.


A microcontroller is a single chip that contains the processor (the
CPU), non
-
volatile memory for the program (ROM or flash), volatile
memory for input and output (RAM), a clock and an I/O control unit.
Also called a "computer on a

chip," billions of microcontroller units
(MCUs) are embedded each year in a myriad of products from toys to
appliances to automobiles. For example, a single vehicle can use 70 or
more microcontrollers. The following picture describes a general block
diagr
am of microcontroller.


BLOCK DIAGRAM OF PROJECT








8051


RS
-
232

SMS


IR

Sensor


Fire

Sensor


LPG
Gas

Sensor


PORT1


GSM


MODEM

APPLICATION





GSM BASED HOME APPLIANCE CONTROL



GSM BASED ANTI THEFT SYSTEM FOR VEHICLES



GSM BASED GENERATOR START STOP AND MANY
MORE.