SOLD BY: THE DESIGN AND CONSTRUCTION OF ELECTRONIC DISPLAY BOARD
ABSTRACT
As the name implies electronic displayboard is an electronic system that is used to display specific information to the public. It displays alpha-numeric characters in constantly moving format. This project present the design and construction of a microprocessor base electronic dot matrix display. This achieved with the use of an active component known as AVR micro-controller where the coded digit and letters in hexadecimal (BCD codes) are programmed for display on the digit electronic boards. The light emitting diodes (LEDs) are used extensively for the actual display character by their on and off states that are controlled by switching transistors. The power supply units consist of a step down transformer, rectifying diode and backup power supply unit. The project also consists of a display module where the information forms the micro-controller finally displays itself for view. The display module is made up of character per page, each containing 10 – 14 dot matrix array. This array is achieved on the board
CHAPTER ONE
1.0 INTRODUCTION
In the world today, there is a great improvement in engineering techniques which lead to the development of engineering skills such as design and construction of electronic display board. There are various types of display board such as electronic scoreboard, posterboard, billboard, signboard and cardboard. Display board are commonly used for conventions, school fairs, for school and collage project and in business.
An electronic displayboard is an electronic equipment or device which is designed and constructed for the purpose of displaying different information to the view of the masses.
The information to be display could be diagram, symbols, letters, colours and code depending on what is needed at a particular place and time, this without doubt has made life easier for the people in different ways (Sedha, 2004).
However, the purpose of this project is to produce a narrative description of the designed and construction of an electronic display board. Electronic is an essential part of out modern world, it is hard to imagine what our line would look like without electrical and electronic devices, the signpost world has been changing throughout the history of our country, yet the atmosphere remained the same. The level of technology used is still relatively low, latest display gadget are not put in place most signpost need periodic checking to rewrite the turnoff letters or raise up the fallen ones.
The advancement technology has been used to help in advertisement for displaying of information throughout an electronic displayboard in this twenty-first century (Sedha, 2004).
1.1 BACKGROUND OF THE STUDY
The data (information) and idea used for the design and construction of this project were gotten or obtain from both primary and secondary sources. The primary information were gotten from various knowledge on the practical application of electrical and electronic engineering, lectures note discipline. Secondary data on the other hand were obtained by searching on the internet and textbook (Theraja,1999).
1.2 STATEMENT OF THE PROBLEM (Research)
The design and construction of an electronic displayboard provide a means of making advert easier, reading awareness and source of information to the public. Unlike before or presently in some places where technology is not advanced, displaying of information to the public is done manually which take a lot of time and stress in renewing information especially on signboard, billboard, posters etc. the high cost of implementation which is due to the high number of requirement of the Light Emitting Divide (LED), which most actives are not gotten easy and most of the component required fort the design and construction of electronic displayboard are gotten from outside country (Theraja, 2000).
1.3 AIM AND OBJECTIVE
This project is aimed at the design and construction of electronic displayboard. The main objective of this project is to display a movable coded display letters that says “WELCOME TO SCHOOL OF APPLIED SCIENCE, DEPARTMENT OF SCIENCE LABORATORY TECHNOLOGY” (SLT).
1.4 SIGNIFICATION OF THE STUDY
The significant of this study is to design a working electronic display board that will use Light Emitting Diode (LEDs) for the information of letters using matix formula. By the use of the principle programmable controller the project is capable of controlling the movement of the letters in a well arranged order moving from left to right so as to say it is reading out the words and also allowing them to light up for few seconds, blinks and repeat the procedure forever (contionusly) (Theraja, 2000).
1.5 LIMITATION OF THE STUDY
The design and construction of an electronic display board provide numerous advantage as well as application, but it is also subjected to many limitation and criticisms.
One of the setback in the design and construction of an electronic display board is that most of the component used are not found nearby, you have to ordered before you will be supplied, the electronic displayboard cannot displayed anywhere because of the wires used for the connection of the circuits.
REQUEST FOR PROJECT MATERIAL
For the complete research material visit our CHECKOUT PAGE or fill the request form below:
[contact-form]
No comments:
Post a Comment