computer arc hi almost repaired)

[SMART HOME SYSTEM] October 25, 2009

(1.0) INTRODUCTION

Nowadays, technology becomes a vital part of our daily life. It is included in most of life aspects. One of

the emerging technologies is the smart homes technology. This technology will influence the structure of

the houses in the coming ten year. Smart homes promote comfort, luxury, entertainment, security, and

world peace. Altering an existing home to accommodate changing needs can cost up to three times more

than including the same features in the initial design. Current existing smart homes need special kind of

appliances to deal with. These appliances should be equipped with a network adapter since they should

connect to a wired network. Smart homes also should contain a pre-installed wired infrastructure in order

to provide a mean of communication between the appliances. Smart home technology originally depends

on the wired network infrastructure but after the huge improvements in that technology, it also supports

the wireless communication over multiple frequencies to control the system.

(1.1) Objective:

The main objective of this project is to design and implement a low cost wireless smart home system. The

system will be developed to enable controlling various devices via radio frequency. A main feature of this

system is that it will uses the regular home appliances/devices with no or minimal modification.

The proposed design will include:

Analysis of electronic appliances involved in the process

The user interface system that will take the commands from the user

The communication system that carries the user commands to the terminals.

The action taken by the terminals when receiving the user command from the main controller.

BTECH 2306


(2.0) ELECTRONIC APPLIANCES REPORT

(1.1) Overview:

Today we are used to control our televisions, videos and DVD-players using their own individual handheld

infrared remote controllers. Setting up the home theatre system for movie may need the using of several

different remote controllers. Every one of those has its’ own unique user interface and the user has to

remember how to use all of them. Moreover the user has to be in line-of-sight with the controllable

appliance when using infrared communication.

In any case, the number of electronic devices in the future homes is huge; all the appliances can be

controlled in a smart home system using some centralized controlling device. The user needs some kind

of user interface to control these controllable appliances and when there are many different kinds of

appliances to control the user interface of the controlling device might be very difficult to use.

Report On Individual Appliances:

In here, we will highlight and discuss the features and functionalities of the different appliances

we wish to make up our smart home system.

Home theatre:

We are using the VizioVSB210WS 2.1 Channel home theatre for this design. The system combines a

main unit that houses a 2 channel speaker/amplifier, with a wireless subwoofer, making it a 2.1 channel

system. The Sub receives audio signals from the main unit without the need for an unsightly audio cable.

It’s got the following features that help it stand as a very good home theatre and these are highlighted

below:

Home Theater System with 2-channel sound bar and wireless subwoofer.

Sound Bar Amplification: 2 channel Integrated Class-D with 15 watts x 2 output and .01% THD

(Total Harmonic Distortion).

Sound Bar Speakers: 4 x 3" High Efficiency mid/bass transducers and 2 x 3/4" Aluminum Dome

Tweeters.

Sound Bar Frequency Response: 80Hz - 20KHZ; Subwoofer Frequency Response: 35 - 80Hz.

Inputs: Two sets of RCA analog stereo line inputs and one Digital Optical input.

BTECH 2306


TruSurround HD processing of two-channel, Dolby Digital/DTS source signals. SRS TruVolume

provides dynamic range adjustment.

Wireless Subwoofer: 2.4Ghz Band. Wireless Range 10m or 30 feet -Clear Line of Sight.

Subwoofer power output: 25 Watts.

Compact Wireless remote control and one set of RCA analog audio cables provided.

Air Conditioner:

For our air conditioner, we have chosen Samsung bio sleep-plus air conditioners. This is about the latest

air conditioner technology that Samsung has manufactured. We have chosen it for couples of reasons

that are mentioned below:

bio sleep - 3 stage temperature control for an un-interrupted sleep & 36% power savings

BEE 1 Star - Rated

UTR plus compressor - cools even at 54°C

Smart Saver - saves up to 31% on electricity bills

High - Efficiency Compressor

Light Weight - Easy Maintenance

Longer Life

Performance Reliability Certificate

Microwave:

For our microwave, we are using the Ge Profile Jes2251sjss Microwave. This brand of microwave has been very successful in the business of making food healthy enough to consume.

Functions: The microwave has extra-large capacity of 2.2 cubic feet.

This type of microwave uses inverter technology and therefore its inverter cooks food more

evenly. The inverter technology also delivers continuous cooking power for more even results.

It has a cooking sensor feature which even makes it ease-of-use and reliable.

Easy-to-use control panel.

Easy to clean

GE Profile microwave is regarded as one of very few microwaves that can hold a 9-by-15-inch

dish while allowing the turntable to rotate properly.

BTECH 2306


This model is very large and takes up considerable counter space.

Specifications

Reheat N/A

Display Type Digital Display with Clock

Energy Star Qualified No

Power Requirements 120V, 13.9 Amps

Color Stainless Steel

Interior Width 17.09 in

Interior Depth 18.97 in

Interior Height 11.5 in

Exterior Width 24.09 in

Exterior Depth 19.41 in

Exterior Height 13.78 in

Weight 34 lbs

Included Accessories Cookbook

Warranty 1 Year

Security Doors:

Our security doors are multi-equipped to ensure maximal security in our house. There are basically two

doors (entry and exit) in our house and they are equipped with the following:

BTECH 2306


Biometric Security System: Biometric security system is installed to provide high level security measure

for restricting door access. Biometric security system uses various methods for authentication. Under this

system, the information specific to an individual's body is used to ensure a high degree of security, which

will make it difficult or rather impossible for a stranger to impersonate that person. The technology utilizes

features like face, hand shape, the voice, fingerprints, and the iris.

Our biometric security system has got the following characters, which contribute largely to its strength and

reliability.

Difficulty of forgery

Swiftness in acquiring biological data

Level of false-acceptance rate

Burglar Alarm:

Burglar alarms are used for keeping the home, offices or other buildings safe from intruders or burglars.

They are in fact most advanced home security system that keeps the burglar away from your residence or

offices. Our burglar alarm is directly linked to our biometric system, so that on false validation by the

biometric system, the alarm triggers.

There are sensors in the burglar alarms that are connected to a control unit. Sensors are connected

through both low-voltage hardwire or a narrow band RF signal. This is further connected to the device that

raises the alarm to evoke some response. Security sensors are the commonly used burglar alarm which

can detect movement through passive infrared and actuate the alarm.

Lights:

Lights are symbolic of celebration, life and entertainment and are more appreciated when it sets the right

ambience. A beautifully lit up house, pool, garden or business area always stands out at events, parties

and important celebrations. Our LED Lighting for the Home, Pool, Garden or Business helps you set the

mood to a more unique standard.

We have in our smart house, LED and fluorescent lightings, and these are of various capacities and

specifications. For example, the security lights at the security doors have greater voltage because of their

halogen contents, while the indoor lights have lesser voltage, in order to avoid excess heat, while we light

our house.

BTECH 2306


USER-DEVICE INTERACTION

WITH SECURITY

VALIDATIONS:

BTECH 2306

USERUSER HOME THEATRE (TV, CD, DVD)

HOME THEATRE (TV, CD, DVD)

SWITCH DEVICE ON

CHOOSE DEVICE (E.G, PLAY DVD, TV, CD

CHOOSE OPERATION (E.G, VOLUME, SOUND ADJUSTMENT, SCREEN

ADJUSTMENT, DVD AND CD OPERATIONS, E.T.C)

PLAY DEVICE FOR USER

SWITCH DEVICE OFF

ENTER PASSWORD

WRONG! ENTER AGAIN

WRONG! LOCK SYSTEM FOR 30 MINUTES

CORRECT PASSWORD


BTECH 2306

USERUSER SECURITY GATES/LOCKS WITH

BIOMETRICS

SECURITY GATES/LOCKS WITH

BIOMETRICS

PRESS OPEN BUTTON

OPEN GATE/DOOR

ENTER NAME AND SHOW FACE IN SCANNER OR ENTER PASSWORD

SCAN FACE AND SEND TO SERVER

WRONG PASSWORD! TRIGGER SECURITY ALARM

WRONG PASSWORD, TRY AGAIN FOR THE LAST TIME

CORRECT PASSWORD

PERMISSION GRANTED

USERUSER AIR CONDITIONERAIR CONDITIONER

SWITCH DEVICE ON

DISPLAY TEMPERATURE LEVEL AND FLAP POSITIONS

SWITCH DEVICE OFF

ENTER PASSWORD

WRONG! ENTER AGAIN


CORRECT PASSWORD

AIRCONDITIONER COOLS

USERUSER LIGHTSLIGHTS

SWITCH LIGHT BUTTON

DISPLAY POSITION OF THE DIFFERENT LIGHTS

CHOOSE LIGHT YOU WANT ON

SWITCH LIGHT(S) OFF

LIGHT(S) ON


BTECH 2306

USERUSER MICROWAVEMICROWAVE

SWITCH DEVICE ON

DISPLAY HEATING OPTIONS AND CONTROL

SWITCH DEVICE OFF

ENTER PASSWORD

WRONG! ENTER AGAIN


CORRECT PASSWORD

MICROWAVE STARTS HEATING

STOP HEATING


A B C D E X

1 1 1 0 0 1 ABCDE 1

1 1 0 1 0 0 ABCDE 2

1 1 0 1 0 0 ABCDE 3

0 1 1 0 1 1 ABCDE 4

0 0 1 0 1 1 ABCDE 5

1 0 1 0 0 1 ABCDE 6

1 1 1 1 1 1 ABCDE 7

0 1 1 1 1 0 ABCDE 8

0 1 1 1 0 1 ABCDE 9

0 0 0 1 1 0 ABCDE 10

BTECH 2306

NOTE: Arrows from user end indicate the signals that user passes to devices. While arrows from device end indicate signals that device passes to user.

DIGITAL COMPUTER LOGIC DESIGN

NUMBER SYSTEM AND TRUTH TABLE


0 1 1 0 0 0 ABCDE 11

0 1 1 1 0 0 ABCDE 12

1 0 0 0 0 1 ABCDE 13

0 0 1 0 1 0 ABCDE 14

1 1 0 1 1 1 ABCDE 15

0 1 1 1 0 1 ABCDE 16

1 0 0 0 1 1 ABCDE 17

1 1 0 0 1 1 ABCDE 18

1 0 1 1 0 1 ABCDE 19

0 1 1 1 0 1 ABCDE 20

1 1 1 0 0 1 ABCDE 21

0 0 0 1 1 0 ABCDE 22

0 0 1 1 0 0 ABCDE 23

0 1 0 1 0 0 ABCDE 24

1 1 1 0 0 1 ABCDE 25

1 0 0 0 1 1 ABCDE 26

0 1 0 1 0 0 ABCDE 27

0 1 0 0 1 1 ABCDE 28

0 1 0 1 0 0 ABCDE 29

0 0 0 1 1 1 ABCDE 30

1 1 1 1 1 1 ABCDE 31

0 0 0 0 0 0 ABCDE 32

BOOLEAN ALGEBRA (A) (ADDITION OF THE FIRST 16 FUNCTIONS (LINES) :

ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE

BTECH 2306


= (ABC + CE + C + AD + B)

BOOLEAN ALGEBRA (B) (ADDITION OF THE LAST 16 FUNCTIONS (LINES) :

ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE + ABCDE

= (AED + BD + A + C + ACD)

(uche)abCd+abCe+abde+aBcE+aBCD+acDE+AbdE+AbDe+AcdE+AcDe+BCDE+Ab

c+ABCde

A This represents our security gates in the home

B This represents our lights and light points in the house

C This represents our air conditioner(s)

D This represents our home theatre which comprises of a TV, DVD, and CD Player.

E This represents the microwave device in the house

X This is the output, when A, B, C, D, E are all combined. That is; A*B*C*D*E

0 (ZERO)

This represents any false value in the operation or control of any of the devices in the smart house.

1 (ONE) This represents any true value in the operation or control of any of the devices in the smart house.

SIMPLE LOGIC GATES FOR BOOLEAN (A) (FIRST 16 LINES):

BTECH 2306

AND

ANDAND

A

B

C

ED

OR

NOTE: Please refer to the table below for the description of the Digital Computer Logic Design


SIMPLE LOGIC GATES FOR BOOLEAN (B) (LAST 16 LINES):

COMBINATIONAL LOGIC GATES FOR BOOLEAN ((A) + (B)):

BTECH 2306

AND

AND

AND

CA

D

E

B

OR

AND

NANDNANDNAND

AND

AB

C

E

D

OR

NAND

X-OR


SMART HOME SYSTEM RESEARCH

REPORT ON SMART HOME TECHNOLOGIES USED TODAY

Home automation has come a long way from the manual timer hooked up to the living room light. Today’s

"smart" home automatically regulates heat, air and light, distributes audio and video around the house,

controls access to your home and can even remind you to exercise!

New technologies and product advances have made home technology systems more affordable than ever

and have brought home systems integration into the mainstream. According to a study done in 2004 by

the National Association of Home Builders Research Center and the Consumer Electronics Association,

nearly half of all new homes being built in the U.S. are now using structured copper “smart” wiring to

enable the installation of new home technology systems.

How it Works

There are four main types of networks you can install in your home to support the available new

technology. Each has its advantages and disadvantages depending on whether you are wiring a new

home or upgrading an existing home.

Structured wiring involves running specialized high performance cabling throughout your home.

It provides a highly reliable and secure network that distributes data signals for phones,

computers, TVs and audio components. It’s ideal for new construction but not always easy to

install in an existing home. Also, networking is limited to the reach of cables, jacks and plugs.

Wireless networks provide the advantages of flexibility and mobility and virtually eliminate the

wiring dilemmas often faced by existing homeowners. However, wireless networks tend to be less

BTECH 2306


reliable and subject to interference from other devices such as baby monitors and cordless

phones.

Power-line networks use a home’s existing electrical lines to transmit data. They are relatively

easy to set up and operate but carry the risk of power surges, and an unencrypted household

network may be accessible to neighbors sharing the same transformer.

Phone-line networks use a home’s telephone lines to carry multiple services. Typically, each

service is assigned a unique frequency spectrum so they don’t interfere with one another. Smart

home technology may also enable you to dial in via a phone line to control specific home

operating systems and/or be pre-set to dial out to a monitoring service in the case of a fire or

break-in.

Other Technologies Include:

Bluetooth technology: Blue tooth technology is one of the main types of smart home technology

which are now in place. The technology is made up of a set of protocols for the design of systems

that allow radio frequency control over the system. In this technology normally the USB Bluetooth

at the PC side and a Serial Bluetooth converter is used at the microcontroller side.

For instant there is the ECKey EK2 Virtual Keypad which allows you to use a Bluetooth-Enabled

phone or PDA as a key to lock and unlock almost any electronically controlled access control

device such as a door lock, gate, and alarm or garage door. The ECKey is a Bluetooth based

electronic relay unit that installs next to your electronic lock. This makes life much easier because

by leaving your phone’s Bluetooth setting in Discovery mode, the ECKey will detect your phone

when you walk into range which is normally adjustable from three feet to 30 feet. When the

presence of your phone is detected, the ECKey will then send a message requiring your PIN

number for authentication and upon confirmation it will unlock the door, open the gate or disable

your alarm. An unlimited number of Bluetooth-enabled devices can be registered, so it will work

for the whole family and no software is required on the phone or PC. The ECKey EK2 Bluetooth-

enabled Virtual Keypad Access Control System and does NOT come with a power supply. The

most common application for the ECKey EK2 Virtual keypad is as an access control system for

door locks. At present this technology is still in its infancy but is likely to become the leader once

the substantive problems are ironed out.

Bus line-based technology: Bus line technology is a type of technology which mainly involves

the use of a cable which is either soft wired or hardwired into the home. In here the data is

BTECH 2306


transferred through the cable to the devices hence enabling the devices to communicate with

each other. With the use of these cables it means that the devices are independent of

conventional mains borne power supplies.

Bus line has been proven to be the most effective and reliable form of smart home, as it can be

configured to prevent devices from malfunctioning during power cuts. The two-way protocols also

allow the system to monitor devices without recourse to external computerized systems.

Bus line systems are generally ideal for disability engineering and design for homes because

within the field of bus line there are a number of companies who are involved in the production of

the system and many different protocols which are involved within the field are CE Bus, EIB and

Lon Works. It has been discovered that many companies nowadays are now developing Power

line equivalents from all over the world, although the reliability of Power line has not been

substantiated for use within housing for people with disabilities. So power line systems are made

of devices that can be connected directly into main power supply.

X-10 technology: X10 is a communications language that allows compatible products to talk to

each other using the existing electrical wiring in the home. This smart home technology is

regarded as the most common and accessible form of smart home technology. This technology is

computer centered and in here devices are not being able to communicate with each other. And

therefore devices communicating using the X10 protocol can then be controlled by your Linux

system. This brings sprinklers and timers, thermostats, humidity sensors, motion sensors,

security gates, security cameras, many cams, lighting ,ore especially simulated home occupation,

home theaters to be under the control of your Linux computer. The only thing that the device does

is to receive its instructions from the computer which will usually be running one of the many

packages for home automation. Generally this type of technology is normally considered not to be

suitable for use with people with disabilities as it does not have the level of reliability that the field

bus systems have. X10 networks have limited range, are insecure because there is no encryption

and may be susceptible to electrical noise. The network is required to all be on the same 2

phases of a 3 phase input circuit which enters the house typical. There are also some software

packages which are designed specifically for people with disabilities but any system that relies on

a computer is always as weak as the computer itself. And by so doing, a number of systems have

been designed and installed do you X10 protocols for isolated devices with specific functions.

REPORT ON DEVICES DIFFERENT CONTAINED IN A SMART HOME

While the possibilities for home automation are only limited by your imagination, the choices facing the

average homeowner may seem daunting. The good news is that you do not need to become a

BTECH 2306


technological expert in order to enhance your home’s capabilities. A home technology integrator can

design, implement, and tie together your home’s various electronic systems. These include:

Entertainment:

Using fairly simple automation technology, one could push a “movie” button on a touch pad in your family

room. The lights would dim, the blinds would close, the popcorn maker would spring into action, the fridge

would check for adequate ice levels for your soda, and your calls would be automatically forwarded

straight to your answering service. With a little creativity and planning, all these events can be achieved

using a home network.

It would be equally simple, using motion sensors and your stereo system, to play music every time you

enter a room in your home -- something upbeat, perhaps, for the home gym, maybe classical music for

your study -- the possibilities are endless. Or one could sit in his living room and select the music he want

to listen to via on-screen menus that are displayed on your TV.

One could even monitor his children’s television and video-game habits, when he’s not at home by

programming the network to alert his cell phone if your children watch too much television or

inappropriate programming.

Security:

Using smart home automation technology, you can program your lights to simulate normal in-home

activity when you’re away. For example, sometime around your regular bedtime, your bedroom lights and

TV will turn on while the rest of the house will be darkened. And this lighting routine can be set up to

change on the weekend.

To protect against break-ins, you can position web cams at home entrances and install an alarm system

that uses heat and motion sensors to alert you and a remote security company in the case of an intruder.

In the case of fire, your smoke detector can be wired to sound not just an alarm but also to send a signal

to your air-conditioning system fans to shut down, alert you and specified contacts and illuminate an

evacuation route throughout the house.

Energy:

Energy savings can be realized by automating thermostats, lights and other environmental systems such

as garden sprinklers and fountains. Integrating all of these into one environmental system can help

ensure a minimum waste of energy in your home. For example, on a hot, sunny day, weather sensors can

activate blind and drapery controls to shade your home, and ensure that your garden receives adequate

BTECH 2306


irrigation at the right time of day. Motion and occupancy sensors can activate heat and lighting controls as

you enter and exit rooms.

When you leave for work in the morning, your house could “check” for and turn off unnecessary energy

consumers such as radios, TVs, stoves and irons (a nice safety feature). On your way home, you could

use your cell phone or computer to change the temperature in your home, turn on lights, turn on the

radiant heat in your bathroom floor and fill the bathtub to just the right level for a nice long soak.

Appliances:

From toasters to fridges to picture frames, the possibilities for networking computerized household

appliances are limited only by your imagination and budget. Your refrigerator can keep track of food

expiration dates and act as a family message center via a built-in screen. Coffee makers and other small

appliances (such as toasters) can be activated remotely or as part of a sequence of events. You can even

imitate Bill Gates and install framed electronic artwork that changes depending on the preference of the

person who enters a room, or purchase Internet-connected picture frames that retrieve images from a

gallery supplied by your friends and family for a constantly updated family portrait wall.

ANALYSIS ON CONVERSION OF AN ORDINARY HOME TO A SMART HOME

Central Computer

A smart house is basically a network of appliances, light switches and various assorted items

communicating together so that the house will operate a lot more efficiently, and smoothly. To run this

network a computer is required. In many cases this is a separate computer that is used as only the

network controller but there are several designs where a personal computer can be used for this purpose.

The owner of the home can then access this computer either through an interface in the house, remotely,

or by directly accessing the computer, and turn on all of the lights, close the window blinds, and many

other tasks. The computer does this by taking advantage of the special wiring that is installed in a smart

house.

Special Wiring

The house of today is wired very simply, the switch is connected to the light bulb or appliance by a wire

and the signal is sent through the wire when the switch is toggled. The diagram below is a very simple

illustration of this type of wiring.

In the smart home the switch takes on a much different function. Instead of electronically “telling” the light

bulb to turn on it passes a signal to the central bus system. A bus is “is a dedicated wiring system

installed purely for the purposes of distributing information.” The bus will then propagate this signal along

the network to controllers that are hooked up to a light fitting, or an appliance. This controller will either

ignore the signal or recognize that it is meant for it and will respond in the correct manner; in the case of

the light bulb it would send enough electricity to turn it on. The diagrams below show how this is set up.

BTECH 2306


The bottom diagram has it set up so that all of the 4 things are using the same controller, which is

possible, it will just have to be a little smarter and be able to understand more complex signals.

The bus will not only allow the switches to send signals but it will also allow the appliances to send signals

to the other appliances that will make them do certain things. For example, the alarm clock is plugged into

to an outlet that is hooked up to the bus. When it goes off it could send a signal through the bus that

would tell the coffee machine (also connected to the bus) to start making coffee.

Parts of a Smart House

Once a house has a central computer and the special wiring it has the capability to be a smart house.

However, the house is not really “smart” until it becomes automated, either fully, or partially. There are

several different things that a house can have automated. The most important of these are: energy

management, lighting, security, appliances, emergency management, and entertainment.

Energy Management

One of the most interesting aspects of a smart home is that it is, or can be very energy efficient, and is

very good at managing the energy used throughout the whole house. It does this by monitoring the usage

and also the number of people in the house. If no one is around then the house will lower the temperature

setting and will turn off appliances or lights that will not be used, and are not needed. It can also manage

the heaters, air conditioners and fans in such a way that will save energy. For example, if the temperature

outside is only slightly more than the setting on the thermostat then the house can use the fans, instead of

the air conditioner, which uses much more energy.

Another way that the smart house saves energy is the fact that it can completely turn energy off to an

outlet, if it is not in use. So if the TV is not in use then the house will turn the energy off to it, which will

save a small amount of energy, which over time could end up saving a lot of money.

Lighting

With a smart home there are several options that home owner can take that will improve the lighting in a

house. Several of these options will make the house safer and easier to live in.

Programmable Lights

With a smart house the owner is able to program the lights to come on at certain times, or even dim them

to match their mood. This is especially useful in terms of security. The owner can use the central

computer and set certain lights to come on at seemingly random times during the night and stay on for a

little while. This could be a major deterrent to criminals.

Remote Access

One of the best things about a smart house is that the owner will be able to remotely control all of the

lights in the house. For example, the owner could be sitting in the living room and suddenly remember

that the lights in the kitchen were left on. They could pull out a PDA, or telephone and turn the lights off.

This could even be done outside the home such as at a restaurant or at work.

Security

BTECH 2306


A house can be very valuable and often hard to protect, leading to a lot of breakins every year. However,

a smart home is much more secure and offers many features that the current houses on the market do

not. A smart home can use an alarm system that is very similar to the current car alarms. With a single

push of a button, the house would enter “security mode” and all windows and doors would be closed and

locked, and the security system turned on. This system while mostly used for single day uses could also

be programmed for long trips. The owner can set it to open the curtains, turn on and off the lights, and

basically make it look like someone is still living there. This system could then be turned off again by

pushing the same button when the owner arrives home. Another possible part of the security system is

hidden surveillance cameras around the home. These can be checked by using an Internet connection

and will allow the owner to check on pretty much every aspect of their home, and will let them know when

a burglar enters or if the cat is “ruining” the furniture again, and then they can take appropriate actions.

Smart Appliances

One of the key components of a smart home are smart appliances. These appliances will be able to

perform tasks that are not within their current job description, and all of this will be done using networking

and the bus that the smart home provides.

For example, the coffeemaker can brew a pot of coffee before the owner even gets out of bed, the

dishwasher has a sensor that knows how dirty the dishes are, and can select the appropriate cycle to

clean them. By pushing a button, the refrigerator can adjust the temperature to the correct level based on

the food within.

How Smart Appliances Work

Smart appliances use mostly embedded circuitry and standard household lines or wireless technology to

communicate. Using this circuitry the items, —a coffeemaker, electric blanket, smoke detector, mixer, etc.

—automatically network and communicate with each other when they are plugged in. All of the smart

appliances are connected to a bus, which is what drives the communication of the network. The bus will

allow the central computer or owner to turn on or off the devices, but it also allows the devices to turn

each other on or off. For example, the alarm clock could tell the coffee machine to start up 10 minutes

before it woke up, or if the fire alarm goes off, the alarm clock could go off as well in order to wake the

owner up.

Emergency Management

An emergency can be in many forms; often the family is confused and does not know what to do. A smart

house can inform the family about what the emergency is and then contact the proper authorities and let

them know that something is wrong. There are two examples that show the capabilities of a smart house

in an emergency. The first is if there is a fire. The fire alarm would go off and the house would

immediately call the fire department and inform them that there is a fire. Then it would turn on the lights

that lead to an exit and unlock all the doors and windows, which would make it much easier for the family

BTECH 2306


to escape. The second example is if there is a gas leak of some kind. The house could detect this and

immediately shut down the gas main and disable all electronic devices so that a spark would not be

generated accidentally, then the house would sound an alarm to let the family know about the leak. In

some more advanced versions of smart houses, ones that have voice automation, the house could tell the

family what is going on and inform them of what to do.

Entertainment

While offering very little of real value, one of the first things that homeowners automate in the home

usually has something to do with entertainment. Often this is in the form of a home theater system or a

network of computers. While this doesn’t really make life any easier having an awe inspiring home theater

system is something that many people really look forward to. This could include allowing the user to

change channels by speaking, improved recording capabilities, and the ability to use the Internet in

conjunction with the TV.

SMART HOME SYSTEM DESIGN

This design contains the actual layout design in the home, the flow chart design/pseudo code and the

logic circuit design. In this section, we would look at how; the various electronic devices and appliances

are configured and integrated together to make up the smart house control.

ACTUAL LAYOUT DESIGN

BTECH 2306

Room 1

Room 2Living Room

Kitchen

MODEM

BLUETOOTH

MICRO CONTROLLER


AIR CONDITIONER UNITS

MICROWAVE

SMART HOME REMOTE CONTROL

SMART HOME CENTRAL SERVER

LIGHTS

SECURITY DOORS

HOME THEATER

BTECH 2306

NOTE: The devices that are of the same kind in different parts of the house are all linked up with each other and each point in room 1, room 2, and the living room are directly linked to the smart house central server

R1

56K

R1

56K

R1

1K

+9V

330uF/25V

+

1

2

4

3

5

6

7

8

910

1112

13


LOGIC CIRCUIT DESIGN

BTECH 2306


BTECH 2306


REFERENCE(S):

“Ge Profile Jes2251sjss Microwave”, Retrieved on October 24, 2009 from http://www.consumersearch.com/microwaves/ge-profile-jes2251sjss

“Different Types Of Smart Home Technologies”, Retrieved on October 24, 2009 from http://www.gdewsbury.ukideas.com/Asmarthomeguide.html

“Security Access and Windows”, Retrieved on October 24, 2009 from http://www.smartaccesssystems.com.au/index.php

“Boolean Algebra”, Retrieved on October 25, 2009 from http://www.eelab.usyd.edu.au/digital_tutorial/chapter4/4_0.html

“Samsung bio sleep-plus air conditioners”, Retrieved on October 25, 2009 from http://www.samsung.com/in/consumer/detail/detail.do?group=homesolutions&type=airconditioner&subtype=windowairconditioner&model_cd=AW18ZKAXTL

“Logic Circuit Design”, Retrieved on October 25, 2009 from http://hlb.cryptofun.de/mirror/circuit/glue.gif

BTECH 2306

http://hlb.cryptofun.de/mirror/circuit/glue.gif

http://www.samsung.com/in/consumer/detail/detail.do?group=homesolutions&type=airconditioner&subtype=windowairconditioner&model_cd=AW18ZKAXTL

http://www.samsung.com/in/consumer/detail/detail.do?group=homesolutions&type=airconditioner&subtype=windowairconditioner&model_cd=AW18ZKAXTL

http://www.eelab.usyd.edu.au/digital_tutorial/chapter4/4_0.html

http://www.smartaccesssystems.com.au/index.php

http://www.gdewsbury.ukideas.com/Asmarthomeguide.html

http://www.consumersearch.com/microwaves/ge-profile-jes2251sjss


BTECH 2306

computer arc hi almost repaired)

Documents

smart home technology

home theatre system

channel system

home theater system

user interface system

communication system

smart homes technology

channel home theatre