ABSTRACT
This work deals extensively with the design and construction of an electronic
dice display (EOD) with audio unit. The device displays the of a hudo
dice in numberical form and also produces sound as it displays the number.
The device works with
principle of chance employee by ludo game players. The output of the
display is usually very rapid that the player does actually sex the number when
the device is switched on so that it will purely be a game of chance.
When the off key is pressed, a patellar number is displayed and this number is
the number, the player got.
The operation of the
device starts by the generation of a pulse frequency. The pulse frequency
(square wave signal) generated by times (555 times) by connecting in an
instable multibibrator. The output from this timer is used in clocking
the binary counter (mod to counter) but this counter is biased to count just
from zero through six (0-6) as we have in a lodo game dice. To achieve
this bias in the mod 10 counter, the output from Qo, Q1 and Q2 were connected
to the riset prins so that once the counter finishes the count of six or goes
back to zero.
The result from the
binary counter is then fed to the decoder driver before connecting it to seven
segment so that the decoder will be able to covert the binary values to the
decinal values that are being used in the ludo game dice. The seven
segment then displays the numbers by lighting the diodes that make up that
particular value.
This device is being
regulated by a latch (4-edge triggered flipflope) which has two switches, one
is used for putting the power supply and the other two push switches for the
working of the dice display.
ORGANISATION OF WORK
The organization of this
work is in seven chapters: the first on the introducing; the second is on the
literature review; the thiod on the design of the system; the fourth deals with
the construction (implementation); fifth on the testing and result
(documentation); sixth on packaging and the seventh on the recommendation and
conclusion.
The first chapter:
introduction give a general view of what the electronic dice display (EDD) with
audio unit is all about, it lists the components required, its aims and
objectives, scope, limitations, problems and purpose of study.
The second chapter:
literature review explains the different component, that make up the system,
their makeup and how they operate.
The third deals on
the design of the system, descrises vividly each component of the system,
their operating modes, specifications and applications, schematic diagram of
the system showing independent modules which function together to make up the
system.
Construction, the fourth
chapter deals with the actual construction of the system, the design
requirement, theory of functioning of each module system, breakdown of the
module specification and construction. Calculations and careful selection
of the component values of each module are detailed in this chapter.
The fifth chapter which
is on the documentation deals on the general description of the work, provides
ease of maintenance and usage of the system.
Packaging, the sixth
chapter lists the factors that were taken into consideration in the design and
construction of the package.
The seventh and the last
chapter, recommendation and conclusion gives a general view of what is
conversed and the importance of this device. It also suggested certain
areas for further studies.
TABLE OF CONTENTS
Title
page
Abstract
Organization of
work
List of
figures
List of
table
Table of
content
CHAPTER ONE
INTRODUCTION
1.0
Statement of problem
1.1
purpose of
study
1.2
Aims and
objectives
1.3
Scope
1.4
Limitations
1.5
Definitions of terms
CHAPTER TWO
Literature
Review
CHAPTER THREE
Description and Analysis
of the Existing System
Organization
structure
Objectives of the
existing system
CHAPTER FOUR
Design of the New
System
Output specification and
design
Input specification and
design
File
design
Procedure
chart
System flow
chart
System
requirement
CHAPTER
FIVE
Implementation
Program
flowchart
CHAPTER SIX
Documentation
CHAPTER SEVEN
Recommendation and
Conclusion
7.1
Recommendation
7.2
Conclusion
Reference
LIST OF FIGURES
FIG
1.0 and gate diagram
Fig
1.1 capacitor diagram
Fig
1.2 seven segment diagram
Fig
3.01 block schematic diagram of an electronic
dice display
Fig
3.02 block schematic diagram of an audio unit
Fig
3.03 555 timer schematic circuit diagram
Fig
3.04 555 timer block diagram
Fig 3.05
555 timer configuration
Fig
3.06 pin-out connection of a 555 timer
Fig
3.07a 555 timers in astable mode
Fig
3.07b timing diagram
Fig
3.08 Jk flip flop symbol
Fig
3.09 delay flip-flop from Jk flip-flop
Fig
3.10a delay flip-flop from JK flip-flop
Fig
3.10b D flip-flop timing diagram
Fig
3.11 D type flip-flop in TTL
Fig
3.12 Quad-and gate symbol
Fig
3.13a Circuit block diagram of a digital counter
Fig
3.13b Output wave forms
Fig
3.14a circuit block diagram of mod 10 counter
Fig
3.14b output wave forms
Fig
3.15 Mod 6 counter using decade counter
Fig
3.16 functional logic diagram of BCD to decimal
decoder
Fig
3.17 seven segment display layout arrangement
Fig
3.18 seven segment display connections
Fig
3.19 BCD to seven segment block diagram
Fig
3.20 7447 BCD to seven segment decoder driver
functional
Fig
4.01 top view of 7414
Fig
4.02 counter configuration for the 7490A
Fig
4.03 top view of 7474
Fig
4.04 top view of SN 7447
Fig
4.05 top view of common unode display
Fig
5.01 output wave of 555 timers
LIST OF TABLE
Table 3.1 time table for
sK flip-flop
Table 3.2 delay
flip-flop forms flip-flop
Table 3.4 and logic gate
truth table
Table 3.5 table of
counter output in various forms.
Table 3.7 bid to seven
segment decoder truth table
Table 4.1a BCD count
sequence
Table 5.0 procedure
chart
Table 5.1 system
flowchart
Table 6.0 program design
Table 6.1 program
flowchart
CHAPTER ONE
INTRODUCTION
Instrumentation
engineering has advanced widely with the introduction of medium scale
integration (MSI), large scale integration (LSI) and very large scale
intergration (VLSI). For purpose of accuracy and reliability, analogue
instruments are being replaced by the digital ones. The electronic
dice display (DD) with audio unit is among this new bread of instruments.
1.0
STATEMENT OF PROBLEM
The design of an
electronic dice display is invented because of the quest for reducing strenuous
activities encountered by man, especially in the area of its recreational
activities. This device is used in indo game. The indo game in its
manual operation can be manipulated by the experts so that it can no longer be
a game of chance. Sometimes players can employ tricks on their opponents
when playing the game, for example, of the both players are not vigilant, one
of them can event thoart the dice and claimed that nothing
happened. The players too may get tired after playing two or three times
because of the stress in shaking and playing the dice, the frequent hitting of
the dice’s can on the ludo board can even give cracks in the glass covering the
ludo board. One can even experience the dice getting cost in the game
because the dice is very small so if care is not taken it can fall out from the
board. All these problems were taken into consideration before
constructing the electronic dice display.
1.1
PURPOSE OF STUDY
As stated earlier, the
design of this device is to help man conguer his environment with the advent of
medium scale integration (MSI), integrated circuits (IC) can be used to design
devices. That can help man perform his work effectively, with little or
no stress and even sometimes at a cheaper into. The devices too will
eradieated all the stress, tricks and pranks encounted when playing ludo game.
1.2
AIMS AND OBJECTIVES
The device will in
crease the fun derived in play the game, even little kids can now join since
they only need to press buttons for the device to work. The game will now
be prvely based on chance because all bias will be eradicted no expert can
manipulate the device no mater how many times you use it. The normal
phenomenon of playing tricks will be in thing of the past.
1.3
SCOPE
The work covered the
playing and displaying of the number got. This means that the device when
switched on and start button is pressed it will be rapidly displaying the
numbers, that is, all the numbers of a ludo dice but when the stop button is dressed
a particular number will be shown and this is the number the player got.
This means that the player still needs to get a ludo board and the seeds for
the game.
Department | Computer Science |
Project ID Code | CMS0187 |
Chapters | 7 Chapters |
No of Pages | 69 pages |
Reference | YES |
Format | Microsoft Word |
Price | ₦4000, $15 |
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Contact Us On | +2347043069458 |