My smart homes

INTELLIGENT AUTOMATION USING
GSM & DTMF VIA
ANDROID
APPLICATION

Presented By-
ROHAN DUA 10808090 IT B
RAHUL SHARMA 10808099 IT B

24 April 2012 SMART HOMES 1

PROBLEM STATEMENT
• To build a mobile application to control all the
electric/electronic devices connected to
switches to provide more flexibility of doing
things and above that securing homes or
workplaces.


INTRODUCTION
• Smart homes/Domotics represents a
technological science which studies all the
things employed in the houses or the
buildings facilitating the work of people and
increasing the comfort in their environment.


MULTI-DISPLINARY
It involves-
• IT- the mobile application
• EEE-the work on switches and relay, the work
on microcontroller
• EC-the coding and decoding through GSM
module


BASIC LAYOUT
OFFLINE

RELAY BOARD

GSM MODULE

MICRO-CONTROLLER Mobile Application

DTMF DECODER

ONLINE


MICROCONTROLLER
• open-source single-board microcontroller
• User friendly
• Wide Applications
• Vast community of users
• Easy assistance


DTMF TECHNOLOGY
Dual-tone multi-frequency signalling
(DTMF) is used for telecommunication
signalling over analog telephone lines in
the voice-frequency band between
telephone handsets and other
communications devices and the switching
centre.

1209 Hz 1336 Hz 1477 Hz 1633 Hz
697 Hz 1 2 3 A
770 Hz 4 5 6 B
852 Hz 7 8 9 C
941 Hz * 0 # D

GSM MODULE

• Use it to send SMS
• make and receive calls
• Provides serial interface
• Can be controlled through
standard AT commands


Why ANDROID ?


ANDROID TOOLS
• LAYOUT
• CUSTOM LIST VIEW
• INTENTS
• TELEPHONY MANAGER
• SMS MANAGER
• BROADCAST RECEIVERS
• SHARED PREFRENCES
• MEDIA PLAYER


ANDROID APPLICATION


ADVANTAGES of INTELLIGENT
AUTOMATION
• Convenience is one of the biggest reasons that people
build and purchase smart homes.
• Smart homes include advanced security systems with
cameras, motion sensors and a link to the local police
station or a private security company.
• For elderly or disabled residents, a smart home may
feature accessibility technologies.
• Smart homes offer enhanced energy-efficiency.
• cut personnel costs.


DEVELOPMENTS
• ANDROID OPERATING SYSTEM IS STUDIED
• ANDROID APPLICATION PROTYPING IS DONE
• SMS MODULE IS RUNNING FINE
• ARDUINO DEVELOPMENT BOARD IS STUDIED IN DETAIL
• SIMPLER PROJECTS ARE WORKED UPON USING ARDUINO
• PROGRAMMING OF ARDUINO IS STUDIED
• DTMF IS RESPONSING WELL ON PRESSING BUTTONS IN PHONE


WORK IN PROGRESS
• FINAL APPLICATION FOR ANDROID
• ARDUINO AND GSM MODULE CONNECTION
• AT COMMANDS STUDY


QUESTIONS ?


My smart homes

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