DESIGN AND CONSTRUCTION OF AN LED CHASER LIGHT
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TITLE PAGE
BY
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APPROVAL PAGE
This is to certify that the research work, "design and construction of an led chaser light" by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.
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DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.
ACKNOWLEDGEMENT
The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.
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This project work is on an “LED CHASER LIGHTING SYSTEM” which is an electronic display used in advertising and distribution of information in public and private locations. The displays are seen mainly in many public places such as airports, train stations, and shopping malls. In this work, signs uses technology such as LED to display information and can be found in public spaces, transportation systems, museums, stadiums, retail stores, hotels, restaurants, and corporate buildings. This device was built with 555 timer ic and 4017 decade as the major components. The device was built successfully and tested, it was seen that the device performed its operation successfully.
TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
CHAPTER ONE
INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
- PROBLEM STATEMENT
- AIM OF THE PROJECT
- OBJECTIVE OF THE PROJECT
- PURPOSE OF THE PROJECT
- LIMITATION OF THE PROJECT
- APPLICATION OF THE PROJECT
- METHODOLOGY
- PROJECT ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
- HISTORICAL BACKGROUND OF LIGHT EMITTING DIODE
- REVIEW OF COMMERCIAL DEVELOPMENT OF AN LED
- REVIEW OF ELECTRONICS SIGN BOARD
- HISTORICAL BACKGROUND OF ELECTRONICS SIGN BOARD
CHAPTER THREE
METHODOLOGY
- SYSTEM BLOCK DIAGRAM
- SYSTEM CIRCUIT DIAGRAM
- COMPONENTS LIST
- CIRCUIT DESCRIPTION
- CIRCUIT OPERATION
- POWER SOURCE CONSIDERATIONS
- DESCRIPTION OF MAJOR COMPONENTS USED
CHAPTER FOUR
TESTING AND RESULTS
- CONSTRUCTION PROCEDURE AND TESTING
- INSTALLATION OF THE COMPLET DESIGN
- CASING AND PACKAGING
- ASSEMBLING OF SECTIONS
- TESTING OF SYSTEM OPERATION
CHAPTER FIVE
- CONCLUSION
- RECOMMENDATION
- REFERENCES
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE STUDY
An LED chaser is one of the most popular types of LED-driving circuit and is widely used in advertising displays and in running-light ‘rope’ displays in small discos, etc.
It consists — in essence — of a clocked IC or other electronic unit that drives an array of LEDs in such a way that individual LEDs (or small groups of LEDs) turn on and off in a predetermined and repeating sequence, thus producing a visually attractive display in which one or more ripples of light seem to repeatedly run through a chain or around a ring of LEDs.
Light-emitting diode (LED) technology is frequently used in signs. This technology, first used primarily at sporting events, later appeared at businesses, churches, schools, and government buildings.
Signs frequently use lighting as a means of conveying their information. Light-emitting diode (LED) is highly use because it is way of way to increase visibility. LED fluoresces and scatters the light. The light transmission through the markers creates a bright and colorful display. LED's commonly have a half-life (to 1/2 brightness) of 50,000 hours.
LED chaser light features various flashing effects that are sure to attract the attention of passersby. The flashing pattern as well as the displayed colors can be cycled with these restaurant signs. These illuminated displays could be hung on any glass surface with the use of some simple suction cups. All of the LED writing boards sold here include wall screws and anchors as well as nylon rope to hang from the overhead.
1.2 PROBLEM STATEMENT
In the last time, information display boards are mostly paper-based before the invention of LED display board, and this has created inconvenience of showing the targeted people information during rainy days because the papers would be wet and wear out. Besides, it would be the possibility of the paper is not pasted on the board properly and dropped easily. After LED is introduced to the public, it is cleverly used to show information to public. However, again the problem arises when human resources, time and costs are wasted to change the information on display board placed at different locations one by one. Thus, this system is created to improvise the conventional method in such a way that the same messages can be sent to multiple LED display boards from one main system.
1.3 PURPOSE OF THE PROJECT
The main purpose of LED chaser lighting system is communication, to convey information such that its receiver can make cognitive decisions based on the information provided. In general, electronic sign board can be classified into the following functions:
(a). Information: signs giving information about services and facilities, e.g., maps, directories, instructions for use, etc.
(b)Direction: signs leading to services, facilities, functional spaces and key areas, e.g., sign posts, directional arrows, etc.
(c)Identification: signs indicating services and facilities, e.g., room names and numbers, toilet signs, number of floors, etc. (d)Safety and Regulatory: signs giving warning or safety instructions, e.g., warning signs, traffic signs, exit signs, rules and regulations.
1.4 AIM AND OBJECTIVE OF THE PROJECT
This main objective of this work is to construct an electronics device that can be used to pass information to the public or passerby using light emitting diodes. The objectives are:
- To have different kinds of decoration lighting patterns
- To create an interesting LED blinking pattern by using a 555 timer IC and Counter IC CD 4017
1.5 SIGNIFICANCE OF THE PROJECT
The LED sign board is very slim and lightweight in design. LED light source, lower power consumption. Ultra slim and ultra light. Top designs for show window and guide board. This LED sign board is ideal for advertising or displaying purpose. The sign board allows you to display your advertising messages, product images at prominent places.
1.6 APPLICATIONS AND ADVANTAGES
This project can be used public places as well as hospitals and private companies, schools, colleges and universities.
Notice boards are particularly prevalent at universities, like this work is used to display “welcome”. They are used by many sports groups and extracurricular groups and anything from local shops to official notices. Dormitory corridors, well-trafficked hallways, lobbies, and freestanding kiosks often have Notice boards attached to facilitate the posting of notices.
1.7 LIMITATION OF THE PROJECT
Presently almost all electronic notice boards are designed using wired system. One of the drawbacks of the design is the system is inflexible in term of placement, that is the information placed cannot changed easily and the wiring can be messy.
1.8 METHODOLOGY
To achieve the aim and objectives of this work, the following are the steps involved:
- Study of the previous work on the project so as to improve it efficiency.
- Draw a block diagram.
- Test for continuity of components and devices,
- Design and calculation for the device was carried out.
- Studying of various component used in circuit.
- Construction of the circuit was carried out.
- Finally, the whole device was cased and final test was carried out.
1.9 PROJECT ORGANISATION
The work is organized as follows: chapter one discuses the introductory part of the work, chapter two presents the literature review of the study, chapter three describes the methods applied, chapter four discusses the results of the work, chapter five summarizes the research outcomes and the recommendations.
CHAPTER FIVE
5.1 CONCLUSION
At the end of the work an LED chaser was built successfully is a surface intended for the posting of public messages, for example “WELCOME” or “NOW OPEN”. This LED chaser is made of a light emitting diode, or they can be placed on the road or public places so people can other people to read and see.
The circuit must provide sufficient current to light the LED at the required brightness, but must limit the current to prevent damaging the LED. The voltage drop across an LED is approximately constant over a wide range of operating current; therefore, a small increase in applied voltage greatly increases the current. Very simple circuits are used for low-power indicator LEDs. More complex, current source circuits are required when driving high-power LEDs for illumination to achieve correct current regulation.
5.2 RECOMMENDATION
This project is designed to be used in entrance of offices or industries and also road sides, even at night to pass information to the public. And should be used and maintain by a qualified personnel.
CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of "design and construction of an led chaser light" is also available. Order full work to download. Chapter two of "design and construction of an led chaser light" consists of the literature review. In this chapter all the related work on "design and construction of an led chaser light" was reviewed.
CHAPTER THREE: The complete chapter three of "design and construction of an led chaser light" is available. Order full work to download. Chapter three of "design and construction of an led chaser light" consists of the methodology. In this chapter all the method used in carrying out this work was discussed.
CHAPTER FOUR: The complete chapter four of "design and construction of an led chaser light" is available. Order full work to download. Chapter four of "design and construction of an led chaser light" consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of "design and construction of an led chaser light" is available. Order full work to download. Chapter five of "design and construction of an led chaser light" consist of conclusion, recommendation and references.
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