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LOGO

Bluetooth Based Smart Home

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LOGO Introduction

1. Objective 1. Objective

2. Introduction to application 2. Introduction to application

Idea Idea

Need Need

Different modes of operation Different modes of operation

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LOGO

Mode-1

Mode-2

Mode-3

DifferentModes

By using Computer Front End

Different modes of operation

By using Switch board/ Speech commands

By usingMobile Phone

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LOGO Bluetooth

Frequency of 2.45 GHz

The range of a Bluetooth device is to

about 10 to 100 meters

Low power consumption and low cost.

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LOGO Mode-1: By using Computer Front End

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LOGO Mode2: By using Mobile Phone

Fan

Nig

ht

Lam

p

Tu

be

AC

Plu

g

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LOGO Mode-2 Using Mobile Phone

Connectivity Accessories Kitchen

Bluetooth

Infrared Port

WAP Options

GSM Networks

Accessories

Living Room Kitchen Master Bed room Home Office Bed room

Fan - on Night Lamp-off Tube Light -off

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LOGO Computer Front End

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LOGO Block Diagram

Relay cardRelay control card

Switch board

CPU

PC

Bluetooth

Mobilewith Bluetooth

Relay card

Electrical Equipment

Electrical Equipment

Fig: block diagram of Bluetooth based smart home

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LOGO Circuit Diagram

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LOGO Software Details

Sample code for Living Room Fan Private Sub ILR_FAN_Click() If LR_FAN = "Off" Then LR_FAN = "On" Else LR_FAN = "Off" End If ChangeStatus End Sub

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LOGO Software Details

AT commands

Commands Description

AT*EAM Accessory Menu adds a persistent menu item to the phone

menu structure. When the menu is selected, the unsolicited

result code *EAAI is sent.

Set command:

AT*EAM=<persistent_menu_item_text>

Test command:

AT*EAM=? Shows if the command is supported.

Parameter:<persistent_menu_item_text>: Character string; the menu item text in the additional

menu.

Example: AT*EAM=menu_1OKAT*EAM=?OK

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LOGO Software Details

Start

Initialize Hardware

Serial communication

Generation of menu

Change status of

equipment

Se nd data to switch

board

Wait for input

From Computer

Mobile/

speech/

switches

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LOGO Literature Survey

Telephone Based Telephone Based SMS SMS Bluetooth & MobileBluetooth & Mobile

Telephone Line

Telephone Instrument

Hardware Unit

Drawbacks : More Time required

to control device

Mobile Network

Mobile Phone

Hardware Unit

Drawback : 1. If network is Busy message cannot be sent2. Time required to typethe message

Bluetooth Device

Mobile Phone

Hardware Unit

Drawback :1. Operates only in Bluetooth Network1. PC must be on

1. IR Based Remotely controlled devices

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LOGO

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LOGO Advantages

Control over the various devices installed in the office or home

To make effective time management and to reduce the cost by avoiding the unnecessarily wastage of electricity.

To examine and test the critical technology that is used for home’s new appliance.

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LOGO Conclusions

The design consists of a mobile phone, Bluetooth, computer and a microcontroller. The home appliances are controlled by the microcontroller, which operates according to the user commands received from the mobile phone or Computer via Bluetooth.

Such a design transforms a mobile phone into a portable remote controller for home automation. The primary contribution of this system is to economically have a remote control system for home/ office devices that are controlled using mobile phone and computer. The status of the devices can be monitored and controlled by using mobile phone which is within the range of Bluetooth.

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LOGO Future Scope

Security System can be applied to this system

In vacation mode in which automatically On and Off of the home appliances during the night time to fool theft that there is existence of somebody in home

capturing of images of a unidentified person visiting the house in odd times

use of motion detectors to increase security.

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LOGO Paper Presented

Bluetooth Based Smart HomeNational Conference NCICC at Coimbatore. (23 & 24 Feb. 2007)

Home Automation System Using Mobile Phone and Bluetooth. International Conference RACE at Bikanar Rajasthan. (24-26 April 2007)

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LOGO References References E. M. C. Wong, “A phone-based remote controller for home and office automation,” IEEE Trans.

Consumer Electronics, vol.40, no. 1, pp.28-34, Feb.1994. I. Coskun and H. Ardam, ”A remote controller for home and office appliances by telephone,” IEEE

Trans. Consumer Electronics, vol.44, no. 4 pp1291-1297. Nov. 1998. “Interfacing the serial/ RS232,” http://www.beyondlogic.org/serial/serial.htm. “Developers guidlines-AT commands online reference,” October 2004,

http://www.sonyericsson.com. “The Bluetooth Special Internet group,” http://www.bluetooth.com. Patrica McDermott-Wells, “What is Bluetooth,” Digital Vision, pp.33-35, December 2004/ January

2005 IEEE. “Mobile communication,” by Schiller (Pearson Publication), pp.203-220 Satyajit Chakrabarti, Son Vuong, Victor C.M. Leung, “A Remotely Controlled Bluetooth Enabled

Environment,” September 2004 IEEE Communication Magazine, pp.77-81 Pravin Bhagwat, “Bluetooth: Technology for short-range Wireless applications,” May / June 2001,

IEEE Internet Computing, pp.96-103 J. L. Ryan ”Home automation,” Electronics & Communication Engineering Journal,” July/August

1989, pp.185-189. Kwang Yelo Lee, Jae Weon Choi, “Remote-Controlled Home Automation System via Bluetooth

Home Network,” SICE Annual Conference in Fukui, August 4-6, 2003 Fukui University, Japan, pp. 2824-2829.

Renato Jorge Caleira Nunes, “Decentralized Supervision for Home automation,” IEEE MELECON 2006, May 16-19, Benalmadena (Malaga), Spain, pp.785-788.

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LOGO Bluetooth Based Smart Home