Bluetooth Based Smart Home

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Bluetooth Based Smart Home Company

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Introduction

1. Objective 2. Introduction to application Idea Need Different modes of operation

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Different modes of operation

By using Computer Front End By using Mobile Phone

Mode-1

Different Modes

Mode-3

Mode-2

By using Switch board/ Speech commands

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Bluetooth

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Frequency of 2.45 GHz

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The range of a Bluetooth device is to about 10 to 100 meters

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Low power consumption and low cost.

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Mode-1: By using Computer Front End

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Mode2: By using Mobile Phone

F a n

p

N gi h t L a m

T u b e

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P ul g

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Mode-2 Using Mobile Phone

Connectivity

Accessories

Bluetooth Infrared Port WAP Options GSM Networks Accessories

Living Room Kitchen Master Bed room Home Office Bed room

Kitchen Fan - on Night Lamp-off  Tube Light -off 

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Computer Front End

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Block Diagram PC

Bluetooth

CPU

Relay control card

Relay card

Electrical Equipment

Relay card

Electrical Equipment

Switch board

Mobile with Bluetooth

Fig: block diagram of Bluetooth based smart home

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Circuit Diagram

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Software Details

Sample code for Living Room Fan 

Private Sub ILR_FAN_Click()

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If LR_FAN = "Off" Then

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LR_FAN = "On" Else LR_FAN = "Off"

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End If 

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ChangeStatus

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End Sub

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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= Test command: AT*EAM=? Shows if the command is supported. Parameter: : Example:

Character string; the menu item text in the additional menu.

AT*EAM=menu_1 OK AT*EAM=? OK

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Software Details Start

Initialize Hardware Serial communication

Generation of menu

Wait for input From Computer  Mobile/ speech/ switches

Change status of  equipment

Se nd data to switch board

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Literature Survey

Telephone Telephone Based Based

Telephone Line

SMS SMS

Bluetooth Bluetooth & & Mobile Mobile

Mobile Network

Bluetooth Device

Telephone InstrumentMobile Phone

Mobile Phone

Hardware Unit

Hardware Unit

Hardware Unit

Drawbacks : More Time required

Drawback : 1. If network is Busy message cannot be sent 2. Time required to type the message

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

to control device

1. IR Based Remotely controlled devices

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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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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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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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Paper Presented

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

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

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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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Bluetooth Based Smart Home