CELL PHONE BASED HOME AUTOMATION SYSTEM is an important project for all telecom based studies.

1. TABLE OF CONTENTS
Sl Description Page No.
1 Abstract 2
2 Acknowledgments 3
3 Consent for BREO/LRC 4
4 Table of Contents 5
5 Introduction 6
6 Statement of problem 8
7 Aim and Objectives 8
8 Literature review 9
9 Primary research work models / Artefact 11
10
Technical Details and artefact
development/implementation 16
11 Testing and evaluation 23
12 Questionnaire analysis 34
13 Benefits of System 36
14 Future Scope of system 37
15 Conclusion 38
16 References 39
17 Appendices 41

2. Introduction:
Home is where the heart is. Every innovation and technological advancements that
improves lifestyles and provides increased security for individuals is welcomed by the
society. In this study we look at novel methods which aid users to control their home
appliances and electronic systems from far-off using a cellular phone based user
interface.
Internet communication today has far reaching access and penetration. This has
been possible due to increase accessibility of cellular networks, integrated circuits
and microprocessors which have become more easily available and accessible.
Incorporating this in the modern home automation can provide the user an improved
security and safety, potential monetary savings and convenience.
Wireless LAN, dial-up modems, private radio networks, satellite communication,
internet and cellular networks are some of the available technologies which are
available or can be used to design and implement system to automate the home
system by connecting to the electronic devices and appliances. In this paper, we will
try to design and implement the automation of home appliances by connecting them
wirelessly and have them communicate using the GSM (Global System for Mobile
Communication) technology. This will be a case of building and having machines
communicate with each other, often called as M2M (Machine-to-Machine). According
to Alheraish. (2004) the Mobile to Machine (M2M) communication systems is among
the reliable systems to control home appliances. The M2M employs DTMF
technology along with microcontrollers to ensure safe and secure communication and
control.
Das et al,(2008) studies that to in order to access the control unit, a command will
need to be sent using the GSM (Global System of Mobile communication)
technology. This command will be an authentication (DTMF) code which will be sent
to the control unit of the house. This authentication code and command gets verified
by the microcontroller of the control unit and on successful verification, execute the

3. instruction and provide a return completion code to the sender, viz the users cellular
phone. Secure PIC based remote control system for intelligent houses has been
offered. This system will thus give the user the power to safely control and operate
his electronic domestic device from any where across the globe. It also empowers
the user to operate it through public or mobile phones. Developed remote control
device have been optically and electrically isolated to secure the system.
Yuksekkaya et al, (2006) opines that home automation product for intelligent or smart
home as its called is a growing space and a key requirement from customers. It
increases comfort, delivers greater safety and security and also provides instant
access to the user (Alheraish, (2004). Introduction of this technology provides control
and access to the domestic devices like lamp, microwave oven, oven, air conditioner,
heater and computer from across the world.
According to Wei, Min, Liangliang & Ping (2011) this century has seen a lot many
innovative advancement in the telecom technologies. The improved security,
communication systems, data access, modern families and digital age are the
outcome of rapid innovation and development. The real time or live monitoring as its
called has a central feature and any change in the status of the device can be
communicated to the user on real time basis, i.e. instantly. This thus meets the
objective of using GSM network. The GSM network allows the entire ecosystem to be
live and online at all points in time making it as an unique advantage along with the
high security and reliability. The inability for anyone to know the information or
command sent or received makes it secure and reliable from unwanted or
eavesdropping elements. However, the challenge of using this network is that it is
tiresome and consumes a lot of time and money of the user. On days when the user
is at home, the user is forced to communicate with these systems through GSM only.
To mitigate this it is proposed to introduce another process which is activated using
the voice command of the user to operate and manage the system. In this process,

4. the user interacts using this voice as the command to operate and manage the
system. In this type of scenario, the RF communication protocol is used to build the
communication between the appliances. The RF system scores over conventional
wired communication technologies such as X10 as having a lower cost of installation
and maintenance. According to Chung et al, (2011), the RF system even scores
higher than another wireless communication mode, such as Bluetooth and thus
simplifies the interaction when the user is at home.
Statement of problem:
In this busy and hectic schedule of lives for individuals overlooking home application
activities on daily basis poses a challenge. It is often observed that many people
leave their homes with switching OFF their appliances like television, air conditioner,
Computer, lights, etc. In such instances the users cannot return home to switch off
their appliances. Thus, by giving an option to perform these activities though the cell
phone would be a convenient and practical way of providing solution. The project
proposes a way to control your home appliances while being inside or outside the
home by making a call through your mobile and with the help of PIC microcontroller,
DTMF. This will also result in saving energy and security. These are also important
concerns that my project will cover, and taking in view all these concerns together
make the system valuable.
Aim and Objectives:
Aim: The aim of the project is to successfully use the technology available and
secure remote connectivity with home appliances using a mobile phone device. The
usage of these devices must be made irrespective of geographical location.
Objectives:
1. To establish, operate and control home appliances from any geographical
location using a mobile phone.

5. 2. To use internet, smart home environment applications, DTMF, ISIS and
Microcontrollers technologies to deliver a low cost object to control home appliances
3. To critically scrutinize the available systems.
Literature Review:
R.Piyare, M.Tazil, 2011 explains one type of Home Automation system that uses
Bluetooth technology to control appliances via a mobile phone. This is a simple
secure, and low cost computerisation system to implement. The outline is based on
standalone “Arduino BT Board” where the input/output port on the board connect the
home appliances via relays. The hardware of this system consists of two devices:
The Cell Phone (user) and Arduino BT Board. The communiqué between the two
appliances is brought about by the “Python Script” to control home appliances and
get access to them, by setting an “ad-hoc” communication rules between the two
devices. The actions of the board can be controlled.
To safeguard security of this system a pairing password between the cellular phone
and “Arduino BT Board” is introduced to connect the two devices. The software will
directly get started once the pairing of two devices is done and control the home
appliances by directing instructions to the status of the lamps “Appliances”.
Referring to Alkar & Buhur, (2005) all devices will be connected through a server to a
central node. Novel protocol has been recommended for devices control not only for
swapping functionality but for more. The automation system has been modeled using
three different units. First is the computer side which forms the user interface,
databank and the web server section. The user interface and internet front are all
connected to the databank server in the backend and the web server is used for
setting up the internet page for user access. Second is master node which comprises
of RS232 interfacing that aid the communication toward the direction of the computer.
Microcontroller is also used in the master node to direct and accomplish the data
transfer to and from the devices. According to Gubbi et al, (2013) the microcontroller
is a initiates a electrical signal to the electrical appliance that is connected to the
system through a control circuit. Third is the slave node which is connecting the

6. actual home appliances and makes the integration between appliances and system.
This node also consists of microcontroller that accomplishes the flow of data from
and to the master node.
The thought of this automation system works when someone access the web page
and get access into the database through internet for the designed system and
execute alterations for the home appliances (For example switching off all ACs in the
first floor), so this change will be redirected in the database and will be transmitted
through the master node first and then to slave node until finally it reached the ACs in
the first floor. Security is ensured in this design in several means, first that the web
page that is opened through internet uses Secured certificate and SSL algorithm.
Second is authentication (username and password verification) method when user
login to the Pc or through the web page confirming only authorized personnel can
control and monitor the home appliances .There is also CRC error inspection tool
which safeguards reliability of data transfer between the master node and other
nodes in the system.
According to Hilton, (2012) the projected number of devices will mount up 20x over
ten years from 2011 to 2021 going from 100.4 million in 2011 to 2.1 billion by 2021 at
a compounded growth rate of 36% per year. The work has described the way how
the appliances and devices used at home can be controlled using smart phone by
employing RESTful Web Services as interoperable application layer which helps in
direct integration with other application domain.
.
Rajeev (2013) has defined the IoT as the intelligent communication between the daily
use objects and appliances like TV, smart phones, actuators and sensors themselves
and between them and people through the internet.
Gubbi, Buyya, Marusic & Palaniswamia (2013) in their research say that the evolving
of internet of things will impact various application domains which are categorized

7. into four: personal and home, utilities, mobile and enterprise. For home environment,
internet connectivity could be through Wifi, 3G, 4G LTE. The Infrastructure for IoT
could be cloud computing to track devices like home appliances which is cost
effective and permits user access on demand from everywhere.
Paul, Antony & Aswathy (2014) says that guiding home appliances can be realized
using android via WIFI as communication protocol and Raspberry Pi as a server
system. A user graphic interface will be design at android and it allows the user to
communicate with Raspberry Pi server using WIFI network modem or router. The
serial data coming from WIFI unit is linked to raspberry Pi circuit which will regulate
the home appliances. This GUI allows the user to communicate with server and
choose certain devices. Most of the devices at home communicate with each other
using communication protocol such as wifi, zigbee which contain low bandwidth &
GSM which contains high bandwidth. GSM device is a classical model for its
characteristics of being portable and has excellent competencies.
Primary Research & Artifact Of The Project
System Introduction:
The system to developed aims at developing and creating a cost effective and
efficient solution which will securely control home appliances remotely and enable
home security against break-ins during the lack of presence of the proprietor or
owner. There exists scope to develop this system as a low cost solution.
We have observed that appliances connected at home and office are mostly
operated using electricity and these devices ought to be switched on/off during the
times of need. This switching of electronics is mostly done manually. For the purpose
of this project we have concentrated on making the mobile phone as the key
communicator. We shall be attempting to create a home/office appliance controller
using the cellular phone as the device of operation. The system will be used to

8. control random devices and requires a cellular phone (not included in the system kit
and the end user is expected to have his or her own i ndividual cellular phone
connected to the system) to connect using the headset. In order to activate the
cellular phone handset on the system, a two or three digit password will be provided
to the user when a call is made to a dedicate number. On entering the correct
password, the user is granted access to the system and provided the ability to control
devices connected to the system and allows the capability to switch on or switch off
the appliances and devices. Relays are used to switch devices. Passwords are used
to ensure security of the devices and limit operations to a limited set of individuals as
they are expected to be made aware to only a select group of people or individuals
nominated to perform the activity. In the system developed, an alarm mechanism is
expected to be created, where the alarm will notify upto five different numbers over
the telephone network on the action of a remote switching to turn a device on or off.
Fig: A DTMF based prototype of mobile based home control systems.
Source: Das, Sanaullah, Sarower & Hassan (2008).
Das et al, (2008) studies that by making a mobile call that will be received by another
mobile phone which is connected to an electrical circuit passes the received
frequencies to microcontroller IC that has multifunctional. The Microcontroller will
govern more than one action (ON/OFF) according to the preset codes that will take

9. actions from the dialed numbers from user mobile keypad and this will be applied on
the chip and protected on the RAM of the microcontroller.
To understand this better the said illustration will assist in making the concept clearer.
The first step, the user will make a mobile call on a particular mobile number to a
mobile connected to the circuit which will act as a receiver with an auto answer for
the incoming call. The user will for instance opt to switch on home appliance1 by
pressing #1 from his phone keypad and by pressing #2 can switch off the same home
appliance1, using the same method for home apppliance2 & 3 by using different
keypad phone numbers (3 & 4) for home appliance2 and (5 & 6) for home appliance3
The decoder will decode the frequency that has been received by the mobile and do
multiplexing for the frequency and pass the result to the microcontroller. The
microcontroller will then decide what action the user desires and on which home
appliance the action should be taken. According to the program codes which we will
apply via ISIS to the microcontroller, all preferred actions for controlling certain home
appliances will be identified and pass to relays will take the switch ON/OFF actions.
Technically speaking we can say for the above blueprint, the operation starts by
connecting any mobile phone to the input of DTMF Decoder. According to Coskun &
Ardam (1998), the decoding process of the DTMF is similar to the classical signal
processing technique. As per the observation of Sikandar et al (2009), the control unit
has the capability to automatically step up to connect to receive DTMF. The MT8870
decodes 16 DTMF tone pairs into 4-bit code using the digital counting technique. The
external component count is minimized by the DTMF received by an on-chip
differential input amplifier, clock generator and latched tri-state interface bus. In
addition DTMF decoder will open the line then can send any number which can
control the devices. PIC microcontroller already programmed to receive digital
number from DTMF decoder and control the devices. First digit is used to turn on the
first device whereas the second digit is used to turn off the same device. All these
controlling operations are indicated on the display unit.

10. PIC Microcontroller 16F84A:
PIC is an abbreviation of Peripheral Interface Controller. This microcontroller is easily
available in the markets, is inexpensive, has many users, is easily programmable,
can be reprogrammed using a flash memory and hence is chosen for this project.
The PIC16F84A model of the microcontroller is amongst the most popular and
frequently used microcontroller. It is created using the RISC architecture which has
many benefits from the project standpoint. Some features of this microcontroller
which can be beneficial for the project are its capabilities to have 18 legs and 13 I/O
pins with individual direction control, thus allowing for multiple ports to be connected,
to have sleep mode to save power, capability to protect code, low power
consumption and high speed technology. The oscillator frequency can reach up to
10MHz, and have 10,000 erase/write cycles of enhanced FLASH, and 10,000,000
erase/write cycles from the EEPROM data memory.
This PIC microcontroller also comes with its set of limitations such as direct reference
to memory in logic or arithmetic operations, single accumulator and a small
instruction set.
Figure 2.1: PIC 16F84A
PIC Microcontroller 16F887:

11. According to Ristov, Stolikj, & Ackovska, (2011), the PIC16F887A model of the
microcontroller is amongst the most accepted and frequently used one. Similar to the
PIC16F84A, this too is created on the high performance RISC architecture. Further, it
also has features useful for use in the project such as a wide operating range of
voltage from 2.5V – 5.5V, High Endurance Flash/EEPROM cell with 100,000 flash
write Flash endurance and 1,000,000 write EEPROM endurance, enhance low
current watch dog timer, the capability to protect code via programming, power
saving modes to have sleep and standby capability, operate current and watch dog
timer current and the capability of the oscillator to reach a frequency of up to 10 MHz.
Peripheral features such as 24/35 I/O pins with individual direction control, ADC and
in circuit serial programmer and master slave mode are further additions and
capabilities in this model of the microcontroller.
Some of the limitations of this microcontroller include having a single accumulator, a
small instruction set and the need to reference memory directly in arithmetic and logic
operations.
We have chosen to use the PIC Microcontroller 16F887A for this project based on
the above reasons as well as based on the research conducted in reading through
books and websites.

12. TechnicalDetails and Implementation
Figure 2.2: PIC 16F887 Pin Connection
DTMF Decoder Unit:
DTMF stands for Dual Tone Multi Frequency and is used for telecommunication
signaling over analog lines of the phone in the voice frequency band between the
handset and other communication devices and the switching center. The Touch-Tone
version of DTMF is used in push-button telephones for tone dialing.
The MT8870 DTMF which is a CMOS integrated device has been chosen for this
project. It carries multiple features and applications which include, 35 mW power

13. consumption, power down mode, inhibit mode and can be applied for remote control,
call limiting, telephone answering systems and central office.
1.0.1. Software Components:
- Simulation Program.
- Writing the program by using micro basic PRO for PIC.
1.1. System Flow Chart:
Intelligent
Control
Device
System
Start
Initialization of
Data
Make a Phone
Call
Press
Number

14. Figure 3.1: Flow Chart of the system
1.2. System Block Diagram:
Is No. 1 is
pressed?
Is No. 5 is
pressed?
Is No. 3 is
pressed?
A
A
Switch ON light Switch ON ACSwitch ON Fan
No
No
No
YesYes
Yes
End

15. Figure 3.2: Block Diagram of the system
In the above block diagram we see that the user will open the operation by dialing the
number on his or her mobile phone and the DTMF will convert the analog signal to
digital and relay the converted 4-bit digital information to PIC 16F887A. The
microcontroller will display the applications which are switched on or off on the LCD
screen of the user. It will now be upto the user to decide to switch on or off the
appliance or machine he or she desires.
Schematic Diagram:

16. Figure 3.3: Schematic Diagram
The above figure describes the entire system. As shown, the operation begins when
a mobile phone is connected to the input of the DTMF Decoder. The CM8870
decoder then detects and decodes the 16 DTMF pairs into a 4-bit code using the
digital counting technique (Nasr & Azwai 2009). The D TMF receiver minimizes the
external component count by providing an on-chip differential input amplifier, clock
generator and tri-state interface bus. The DTMF decoder will open the line and can
then send any number which may control the devices. The DTMF decoder provides
the digital number to the pre-programmed PIC microcontroller to control the devices.
The first digit is used to switch on the device while the second digit used to switch off
the same device. An alternative way to approach this can be to have odd numbers
switch on the device and even numbers to switch off the same device. These
controlling operations are mentioned on the display unit.

17. Project specification:
Table 3.1: Project Specification
Components Max voltage Min voltage
Microcontroller 5.5v 2v
LCD 3v 5.5v
Buzzer 9v 3v
Mobile Phone 3.7v -
Simulation, Testing& Evaluation
Simulation:
A simulation was performed at the completion of the project planning which was
approximately three weeks into the beginning of the current semester. The simulation
of this project was performed using the mikrobasic pro for PIC programming and the
circuit in the image below created using the Proteus Design Suite program.

18. Figure 4.1: Simulation
Figure 4.2: Switching ON theFirst Device
The above figure displays the simulation of the device which is on by pressing 1. The
LCD display also reflects that the fan is switched on.

19. Figure 4.3: Switching ON the SecondDevice
In this simulation we switch on the second device, which is the light by pressing the
number 3 and notice the LCD display as the light is switched on too now.
Figure 4.4: Switching ON the third device
The third appliance is switched on by pressing the odd digit 5 and the simulation and
reflects on the LCD screen as the AC is switched on.
Post the successful simulation, the actual implementation of the project was
attempted. The circuit testing in the Lab was unsuccessful despite application of the
correct voltage. Thereafter multiple trial and errors and on checking and rechecking
the wired connections, the LCD displayed the devices and their status. However, on
connecting the DTMF decoder, the component circuit failed to work due to the need

20. for more power and voltage, thus inferring the need to have more voltage of reach
main component and output requiring a unique single source of voltage.
Figure 4.5: Testing on bread board
While the implementation stage began, the primary step was to check the availability
of the components to drive this project. Further, there were lot of hurdles in regard to
availability of components in the Oman electronic market. Therefore, these
components had to be procured from different geographical locations outside Oman.
One such example is the PIC microcontroller and the DTMF decoder which were a
part of the requirement of the project.
Once the components were made available, the connections were drawn and the
procedures to connect the components was followed. The circuit on the white board
which was is the primary testing ground for this project artifact, was connected and
once an agreed result was obtained, the actual implementation was done on the
PCP.
Following the test, the implementation was done after programming the PIC which
was done using the a special kit meant for its programming. The whole process
involved embedding the PIC to the white board and by applying the required voltage
based on the capacitors connected. Once the electric circuit was completed, the test
results were observed. On applying the voltage as per the procedure and design of
the circuit, the results from the output were observed for desired output. The same
was achieved successfully.
Development:
Following are the steps to be followed in creating a printed circuit board:

21. 1. Procure a bare board of ceramic and cover all the board of copper and clean
with a piece of cloth using an alcohol based solution
2. Design and draw the circuit in software
3. Print the layout on the board
4. The entire board with the copper layout will be etched using chemical
remover
5. The copper will be removed from the board and only the copper tracing will
remain in contact with the ceramic board
6. The final ceramic will be washed once more with water
7. The terminals for the components are to be connected with board through
drilling the ceramic using a fixed drill. The components will then be installed onto the
appropriate drilling halls and soldered to them

25. Figure: Block diagram of PIC 16F887
Table: DTMF Decoder MT8870 Description

26. Table : Specification of DTMF decoder

27. Analysis of questionnaire and the responses
The questionnaire that was uploaded in Survey Monkey to obtain the feedback of
customers received good response. The following analysis transpires from the
questionnaire survey done.
Question 1 was asked to the respondents who comprised of 62 percent who earned
a salary of $2000 and above per month. The replies that came in were mostly from
the country of Oman. Therefore the survey was run in the geographical region of
Oman.
Question 2 was asked to provide the segment of people who would like to use this
kind of automated system for their home. 67 percent were people above the salary of
$2000 per month and a 24 percent were those between $1000-1500 per month

28. Question 3 & 4 were asked to understand the priority of appliances the customer
would want to control with this new system. The response was for TV, Fridge,
Computer AC and Fan at the top 5 choice.
Question 5 was asked to gather knowledge of from where the consumers are most
probably controlling the home appliances. The answers was that consumers want to
use this option from both inside and outside their home. They take this as an
advantage to manage their energy resources and be economical in the use of
energy.
Question 6 was asked to understand the share ability and acceptability to share the
control of the home appliances with the use of this technology. The response showed
that 65 percent of people prefer to share the controlling of home appliances whereas
35 percent were against such sharing.
Question 7 was about reducing the electrical hazards by using such technology and
reducing the interference of human element. The response was that 85 percent of
consumers relied that it would reduce the electrical hazards. Therefore this
technology is considered safe and reliable.
Question 8 was aimed at understanding the comfort and satisfaction level of the
consumer. The question was asked about the ease of daily duties. The response
showed that 93 percent people felt that this technology would ease their life and that
they are then available for other activities.
Question 9 & 10 were aimed at the budget outlay and expenses savings from this
technology. The consumers were asked if their monthly budget would reduce and
what is the cost they can afford for this technology. The replies were that 80 percent
of people agreed that their monthly energy expenses would reduce. Also the reply to
the question 10 was that 40 percent people agreed to pay up to $300 for such a

29. system. And at the other end 8 percent agreed to pay a max of $1500 for such a
system.
Therefore by analyzing the questions it can be affirmed that the customers are
favoring such a system and this technology would eb a success in the marketplace.
Benefits of the system:
In the words of Das et al, (2008), a large population of the country is using cellular
phones today and is growing at a rapid pace. The potential for this is thus growing
and provides more opportunities as the service providers offer their services at cheap
rates. Thus, the inclusion of a larger population to have them use their cell phones to
monitor and control their electric appliances is very attractive. Further, human being
tends to be forgetful and if appliances are left on while away are a drain on the
resources as well as lead to wastage of power and electricity. Today, for the most
part, all the electric appliances are monitored and controlled manually by a switch.
Having the capability to perform the same operation remotely and wirelessly provides
an opportunity to save power and electricity by switching off appliances not needed
remotely and in time. This also acts as an additional safety measure to switch on or
off appliances remotely as we have often seen appliances can over-heat and cause
sparks or short-circuits leading to significant losses of property and or even lives in
certain instances. By switching off the appliance remotely using their cell phones, it
provides the benefit to avoid such disasters and prevent losses. It can also assist in
emergency situations such as during the breakout of a fire to monitor and control the
electric appliances and switch them off to prevent and slow down or reduce the
damage.

30. Important Aspects to Be Considered while Implementation
According to Das et al, (2008), in order to have a successful implementation of this
project, the following factors must be considered and adopted to enable a high
success rate.
1) Adequate, preferably strong signal strength must be available at all times in the
location where the receiver resides
2) Only authorized personnel should be able to communicate and instruct or operate
the devices and an authentication mechanism be built
3) Only devices or appliances which operate on electricity and have electrically
controlled input ports will be possible to operate using this technology and project
target
4) A 12V power source must be connected to the receiver at all times
5) Cell phones operated with DTMF capabilities and voice message are the only
source through which the appliances or devices can be managed to be operated
Future Scope of Study
More scope exists for this and can be explored.
More scope exists for this and can be explored.
1) The devices can be operated using the Short Messaging System (SMS) and can
be a unique proposition of gaining the status and well as providing instructions and
controlling the appliances and devices via a message. E.g. FAN ON or FAN OFF to
switch on or switch off a fan.

31. 2) An automated control panel can be created or built in order to charge the mobile
and a timer built-in to activate and charge at regular intervals an d auto-switch off on
completion of charging or when not required or needed.
3) This system has the potential to further expand and to control devices via GPRS or
the internet. This will allow for the capabilities of the internet to be explored and
maybe even have a closed loop control facility to improve the system. ePrint is an
emerging trend where print outs can be instructed remotely and acts a future scope
to explore among other things.
Conclusion
Mobile phones and now smart phones are becoming an indispensable part of our
daily lives. Our system has thus used this emerging indispensable piece of
technology to look at improving things and making a noticeable impact in the daily life
of individuals, by using a controller and a cellular phone for operating devices and
appliances. This lays a foundation on the capability of the system and can prove to
revolutionise the way technology is handled, managed and day to day life operations
are managed and provide another way of living and lifestyle. This system can be
expanded to potentially use any equipment, device or appliance used and operated
with electricity to be connected and provide smart instructions or have on and off
switching instructions in a way never imagined a few years ago. The capability to use
a cell phone to control electronic devices or even act as a remote control for
televisions as an example must be explored and may soon translate to reality and
form of daily life. Further, it also can add to the reduction in the number of gadgets to
manage and operate different electronic and electrical appliances and devices, to a
single box or device, in this case the cell phone to operate all gadgets, devices and
appliances – all leading to a simpler and seamless lifestyle.

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34. Appendix
Appendix 1: Question & Answers to the interviews conducted.
Q1&Q2:
The survey was distributed around different countries over the world. Q1 shows that
was the majority of responds were from the Middle East and Gulf Content Countries
(GCC). With relation to results of Q2 which was intended to know the financial ability
of the people questioned ,62% of the sample earn $2000 and above per month which
actually enable them to afford having such home automation system in their houses.

35. Q4:

36. Q5:

37. My purpose of Q5 was to understand whether people prefer to control their
appliances from inside home or outside. Interestingly, 81% said they want to control
their home appliances from both inside and outside home.
Q6:

38. The results showed that more than half of responds support the idea of allowing more
than one user to control their home appliances remotely. Although higher percentage
agreed in allowing more than one person to control their home appliances remotely
but they should take into consideration the security risk of allowing more than one
person.

39. Q7:
This question addressed the issue of health, safety and environment (HSE).
The majority (85%) agreed that intelligent home appliances control highly reduces the
risk of electrical hazards.

40. Q8:
The majority of responders of around 93% think that using their mobile to control their
home appliances will make life easier for them. Only around 6% think that having
remote control through mobile phone will not make a difference in their daily life.