DESIGN AND DEVELOPMENT OF
ACTIVATION AND CONTROLLING OF HOME AUTOMATION SYSTEM VIA SMS THROUGH
MICROCONTROLLER
TECHNICAL
SPECIFICATIONS:
Title of the project :
Design and development of Activation and Controlling of Home Automation System
via SMS Through microcontroller.
Domain : Embedded Systems Design, Electrical
Software : Embedded C, Keil, Proload
Microcontroller : AT89S52
Power Supply : +5V,
500mA Regulated Power Supply
Display : LED
5mm, 16 X 2 LCD
Communication Device : GSM
Modem
Applications : Electricity
Boards, Power Stations
ABSTRACT:
Nowadays there are various
electronic equipment available for remote operation of grid control. However,
the main disadvantage of these systems is that they can be operated only from short
ranges and also less reliable. Thus, to overcome the above drawbacks, we are
using one of the wireless communication technique i.e., GSM (Global System for Mobile communications) is a digital cellular
communications system which has rapidly gained acceptance and market share
worldwide.
The
development of GSM is the first step towards a true personal communication
system that will allow us to communication anywhere, anytime and with anyone.
GSM
(Global Systems for Mobile Communication)
is vastly used because of its simplicity in both transmitter and receiver
design, can operate at 900 or 1800MHZ band, faster , more reliable and globally
network .
This project is designed for seven
power grids. AT89S52 is the heart of the project. A GSM modem is interfaced to
microcontroller. This modem receives the messages from control mobile and sends
as input to MCU. The MCU verify for authentication of the number and, if the
number is authorized, grid control will be taken place, EEPROM is interfaced to
this controller to save the grid position at every instant.
This grid position information
will not be deleted even in power failure conditions. 3X4 keypad is interfaced
to change the mobile number at any time. 16X2 LCD is interfaced to display
user-required information. In this project TRAIC is used as load controller (as
a switch), MOC3021 used as a Triac driver.
GSM network operators have
roaming facilities, user can often continue to use there mobile phones when
they travel to other countries etc….
This project
uses regulated 5v, 750mA power supply. 7805 and 7812 three terminal voltage
regulators are used for voltage regulation. Bridge type full wave rectifier is
used to rectify the ac output of secondary of 230/12v step down transformer.
Advantages:
- System can be monitored and controlled from any where
- Mobile number can be changed at any time
- Grid status will not be lost in power failure condition
Scopes for Advancements:
- This system is developed for mobile reporting application only. It also can be interfaced to computer system to record and process data base.
Applications:
- Process Industries, Power Grids
REFERENCE
Text Books:
Working with GSM Network By Cruis Leanardo
Power Grid Control and Applications
with GSM By Morris Hamington
Website:
www.howstuffworks.com
www.answers.com
www.radiotronix.com
Magazines:
Electronics for you
Electrikindia
Let us Go Wireless
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