1015745 DESIGN OF INFRARED REMOTE CONTROL SYSTEM

ABSTRACT

i

APPROVAL

ii

DECLARATION

iii

ACKNOWLEDGEMENT

iv

TABLE OF CONTENT

ABSTRACT................................................................................................................................................... i APPROVAL ................................................................................................................................................. ii DECLARATION ......................................................................................................................................... iii ACKNOWLEDGEMENT ......................................................................................................................... iv TABLE OF CONTENT ................................................................................................................................ v LIST OF FIGURS ....................................................................................................................................... vii CHAPTER 1: INTRODUCTION ................................................................................................................. 1 1.1

Overview ....................................................................................................................................... 1

1.2

Problem statement ......................................................................................................................... 2

1.3

Objectives: .................................................................................................................................... 2

1.4

Methodology ................................................................................................................................. 2

1.5

Scope of the work ......................................................................................................................... 3

1.6

Report outline................................................................................................................................ 4

CHAPTER 2: LITERATURE REVIEW ...................................................................................................... 5 2.1

Introduction ................................................................................................................................... 5

2.2

Basic concepts ............................................................................................................................... 5

2.2.1

Remote control ...................................................................................................................... 5

2.2.2

Infrared transmission............................................................................................................. 6

2.3

Other Control Methods ................................................................................................................. 6

2.3.1

Ultrasonic Control Method ................................................................................................... 7

2.3.2

Radio Frequency (RF) Control Method ................................................................................ 7

2.3.3

AC Power Line Control Method ........................................................................................... 8

2.4

How Infrared Remote Control work ............................................................................................. 9

2.5

Limitation of Infrared Remote Control ....................................................................................... 11

CHAPTER 3: METHOD AND IMPLEMENTATION .............................................................................. 12 3.1

Introduction ................................................................................................................................. 12

3.2

Block diagram of the system:...................................................................................................... 12

3.3

Transmitter .................................................................................................................................. 13

3.4

Detection ..................................................................................................................................... 15

3.5

Sampler ....................................................................................................................................... 16 v

3.6

Control Stepper and Display Unit ............................................................................................... 17

3.7

Control Unit ................................................................................................................................ 17

3.8

The Power Section ...................................................................................................................... 17

3.9

4017B .......................................................................................................................................... 18

References ................................................................................................................................................... 19

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LIST OF FIGURS Figure1.1 : FYP1 Gantt chart .......................................................................................................... 3 Figure2.1: Infrared Remote Control work .................................................................................... 10 Figure3.1: System block diagram ................................................................................................. 12 Figure3.2: Circuit of transmitter device ........................................................................................ 14 Figure3.3.: Circuit diagram of the detector ................................................................................... 16

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CHAPTER 1: INTRODUCTION 1.1

Overview

1

than 99 percent of all TV set and 100 percent of all VCR and DVD players sold are equipped with remote controls. The average individual these days probably picks up a remote control at least once or twice a day [6].

1.2

Problem statement When talking about remote control, the available types include infrared, wireless,

and Radio wave control are widely available in the market and there are many studies regarding this matter. However, these remotes are complex and expensive, while the idea is mostly easy. Besides that, RF control makes a lot of interface with other electronic devices. 1.3

Objectives: 1. To design a simple IR remote control circuit. 2. To stimulate it by using some standard software like Matlab and Pspice. 3. To develop a prototype for 3 lights and 1 fan with 3 states of speed control. 4. To evaluate the design.

1.4

Methodology Project methodology for FYP 1 includes following steps which start with

reviewing the previous works. Furthermore, the next step starts with selection of components and ends with designing the energy meter system. The following step concludes the whole work. All these activities besides to report drafting and submitting are represented in Gantt chart in figure1 below which also shows the time necessary to

2

accomplish every tasks in terms of weeks. There are also some differences between the planned time of each task and the actual time. This delay happens because of getting busy with other subjects in the course and postponing the work of FYP.

A Figure1.1: FYP1 Gantt chart

A: Registration and title selection. B: Literature review and research. C: Project design. D: Concluding remarks. E: Drafting. F: Submission. 1.5

Scope of the work The scope of this study is mentioned below:

i.

Selection of components and materials and designing the infrared remote control.

ii.

Developing a method for data transfer from IR transmitter to an electric device.

iii.

Test the level of system performance.

3

1.6

Report outline This paper will deal with four essential chapters that provide an overall covering

to the project contents. The first chapter represents an introductory part that briefly discusses an overview of IR remote control. The second chapter deals with literature review that consists of several parts such as basic concepts about infrared. It covers a review of previous researches on different types of remote control with their advantages and shortcoming. The third chapter of this report mainly discusses remote control system design which initially begins by highlighting the infrared diode and transistors. In addition, it deals with hardware components selection of the circuit, namely; encoder, modulator, IR driver, IR diode, IR prototype, low pass filter, demodulator and decoder. The forth chapter covers the implementation of the whole system along with the results of the experiments done in this project. Conclusion is the last chapter that contains a summary of whole contents of this report and some recommendations for implementing the design.

4

CHAPTER 2: LITERATURE REVIEW 2.1

Introduction This chapter basically deals with an introductory part of the project by reviewing

some of the basic concepts in control. 2.2

Basic concepts This part will discuss basic concepts related to control system. It will cover an

overview about remote control, infrared transmission.

2.2.1

Remote control A remote control is an electronics device component used to control which most

commonly a used with television set, DVD player etc. Originally, is used for operating another device wirelessly from a short line-of-sight distance. Nowadays, Remote control has continually evolved and advanced to include motion sensor, Wi-Fi, Bluetooth connectivity, GPS to enable capabilities and voice control. [3] Usually, remote controls are operating throughout two ways: IR and radio signals. The remote controls used to issue commands from a distance to any other consumer electronics device. Remote controls are usually small wireless handheld model while it is rarely come as wired object specially nowadays we can say that there is no more such remotes. The user just press with an array of buttons for adjusting different setting settings ex. change channel, increase volume. Most of the electrical device has its own control bottom but the remote is used only for easier usage and more convertibility. At the same time most of the remote controls communicate with their electric device through an infrared signal while a few via radio signals. However, the first remote controls were 5

using ultrasonic tones in 1973. The remote controls its electric device trough specific code which must be different from any other device code because if so there will be wrong reading for the signal which is usually happen during using of radio wave.

2.2.2

Infrared transmission Infrared transmission refers to energy which is locate in the region of the

electromagnetic radiation spectrum at wavelengths longer than visible light, but shorter radio waves. To illustrate, infrared frequencies are the frequency which is higher than microwaves frequencies and lower than visible light frequency. Most scientists are dividing the infrared radiation (IR) spectrum into three main regions depending on its wavelengths which is usually specified in microns (µ), or in nanometers (nm). The nearest IR region contains energy in the range of wavelengths closest to the visible (from750nm to 1300nm). The intermediate IR region called the middle IR band consists of energy in the range (from1300nm to 3000nm). The far IR region extends from (3000 nm to 1.4000 x 104 nm).

2.3

Other Control Methods This part of this chapter delves into the other ideas that are used to get similar result to

this research which is controlling an electrical device and will explore their significant strength and weakness.

6

2.3.1

Ultrasonic Control Method

2.3.2

Radio Frequency (RF) Control Method

7

2.3.3

AC Power Line Control Method

8

2.4

How Infrared Remote Control work

9

10

2.5

Limitation of Infrared Remote Control

11

CHAPTER 3: METHOD AND IMPLEMENTATION 3.1

Introduction It is very common in designing any of application to find out the cheap and high

quality products that cost a little and work for a period of long time. In this project for designing of a remote control system, the most important factors to be achieved in the design are the cost and simplicity of the circuit. The cost will be minimized be choosing a cheap circuit components, low cost IR component.

3.2

Block diagram of the system: Basically, a remote control works in the following manner. A button is pressed.

This completes a specific connection which produces a Morse code line signal specific to that button. The transistor amplifies the signal and sends it to the LED which translates the signal into infrared light. The sensor on the appliance detects the infrared light and reacts appropriately.

Figure3.1: System block diagram

12

3.3

Transmitter

13

14

.

3.4

Detection

15

3.5

Sampler

16

3.6

Control Stepper and Display Unit

3.7

Control Unit

3.8

The Power Section

17

3.9

4017B

18

References [1] Freeman, William T., and Craig Weissman. "Television control by hand gestures." Proc. of Intl. Workshop on Automatic Face and Gesture Recognition. 1995. [2] Forrest M. Mims III, Engineer’s Mini Notebook, Volume I. Timer, Op Amp & Optoelectronic Circuits & Projects, 1st Ed., Master Publishing, 1986. [3] Theraja B.L., Theraja A.K., A text book of electrical technology, Ed. 21st, Publisher; publication of division of Nirja construction and Development co., Ltd. Ram Nagar., 1994. [4]

Horowitz P., Hill W., The art of Electronics, 2nd Ed., Cambridge University Press, U.S.A., 1995.

[5] HowStuffWorks, 1998-2006, Available at: http://www.howstuffworks.com/.[ 12/ 12 /2014] [6] SB-Projects, Infra-Red Remote Control Theory, Available at: http://www.sbprojects.com, 2004. [ 12/ 12 /2014]

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