The The Design And Implementation Of An Electronic Sign Pattern Display (PDF/DOC)
ABSTRACT
This design implementation of this electronic sequential sign post display employs the use of some specialized components. This section of the project introduces the reader to the different section of the project and the components that makes them up.
Emphasis are laid on describing the behaviour and operational system of the components as related to the project modeling, analysis, design and implementation of an ELECTRONIC SIGN POST, which is made up of a power supply, a shift register, a counter, multivibrator (555CMOSI.C) transistor, relay, resistors of different ohmic values capacitors, sensitive mic (for the switching system) and 220V AC lamp.
LIST OF FIGURES
Fig. 3.1: Block Diagram of a Dynamic Sign Display
Fig. 3.2: Arrangement of the Pattern Display
Fig. 4.1: Transformer Arrangement
Fig. 4.2: Bridge Rectifier
Fig. 4.3: Voltage and Current Waveforms
Fig. 4.4: Full Diagrams of Power Supply
Fig. 5.1: Four Bit Series in Parallel out Register Logic Circuit Arrangement
Fig. 5.2: Clear and Shift Sequence
Fig. 5.3: Circuit Diagram for SR Ftip-Flop
Fig. 5.4: Timing Diagram for SR Ftip-Flop Unclocked
Fig. 4.4.B: Clocke Circuit
Fig. 6.1: Transistor Switch/Relay Drive
Fig. 6.2: Wave form of a Monostable, Fti-Flop
Fig. 7.1: Astable Multivibrator
Fig. 7.2: Internal Block Diagram of CMOS555 Timer
Fig. 7.3: 555CMOS Connection as a Multivibrator
Fig. 7.4: 555CMOS Connection as a Timer
Fig. 7.5: 555CMOS Connection as a Monostable Vibrator
Fig. 8.1: Asynchroneous Decade Counter using Reset
Fig. 8.2: Asynchroneous Decade Using Feedback
Fig. 8.3: Timing Wave form
Fig. 8.4: Pin configuration of Latch Counter
Fig. 8.5: Circuit Diagrams of a Divided Counter
Fig. 8.6: Complete Circuit Diagram of Electronics Sign Post
Fig. 8.7: Complete Picture of Electronic Sign Post
TABLE OF CONTENTS
Title Page
Declaration
Approval Page
Dedication
Acknowledgements
List of Table
List of Figure
Table of Contents
Abstract
Description/Functions of Components Used with
List of Figures
CHAPTER ONE
Introduction
CHAPTER TWO
Literature review
CHAPTER THREE
Methodology
CHAPTER FOUR
Power supply
Rectification
Filtration
CHAPTER FIVE
Design of sequential Counter
CHAPTER SIX
Design of the transistor/Relay Drive
CHAPTER SEVEN
Design of system timing circuit
Design of an interated timing circuit
Astable multivbrator
Asignchronous counter
Synchronous counter
CHAPTER EIGHT
Construction and packaging
Packaging
Problem encountered and solutions
References
ABSTRACT
This design implementation of this electronic sequential sign post display employs the use of some specialized components. This section of the project introduces the reader to the different section of the project and the components that makes them up.
Emphasis are laid on describing the behaviour and operational system of the components as related to the project modeling, analysis, design and implementation of an ELECTRONIC SIGN POST, which is made up of a power supply, a shift register, a counter, multivibrator (555CMOSI.C) transistor, relay, resistors of different ohmic values capacitors, sensitive mic (for the switching system) and 220V AC lamp.
LIST OF FIGURES
Fig. 3.1: Block Diagram of a Dynamic Sign Display
Fig. 3.2: Arrangement of the Pattern Display
Fig. 4.1: Transformer Arrangement
Fig. 4.2: Bridge Rectifier
Fig. 4.3: Voltage and Current Waveforms
Fig. 4.4: Full Diagrams of Power Supply
Fig. 5.1: Four Bit Series in Parallel out Register Logic Circuit Arrangement
Fig. 5.2: Clear and Shift Sequence
Fig. 5.3: Circuit Diagram for SR Ftip-Flop
Fig. 5.4: Timing Diagram for SR Ftip-Flop Unclocked
Fig. 4.4.B: Clocke Circuit
Fig. 6.1: Transistor Switch/Relay Drive
Fig. 6.2: Wave form of a Monostable, Fti-Flop
Fig. 7.1: Astable Multivibrator
Fig. 7.2: Internal Block Diagram of CMOS555 Timer
Fig. 7.3: 555CMOS Connection as a Multivibrator
Fig. 7.4: 555CMOS Connection as a Timer
Fig. 7.5: 555CMOS Connection as a Monostable Vibrator
Fig. 8.1: Asynchroneous Decade Counter using Reset
Fig. 8.2: Asynchroneous Decade Using Feedback
Fig. 8.3: Timing Wave form
Fig. 8.4: Pin configuration of Latch Counter
Fig. 8.5: Circuit Diagrams of a Divided Counter
Fig. 8.6: Complete Circuit Diagram of Electronics Sign Post
Fig. 8.7: Complete Picture of Electronic Sign Post
TABLE OF CONTENTS
Title Page
Declaration
Approval Page
Dedication
Acknowledgements
List of Table
List of Figure
Table of Contents
Abstract
Description/Functions of Components Used with
List of Figures
CHAPTER ONE
Introduction
CHAPTER TWO
Literature review
CHAPTER THREE
Methodology
CHAPTER FOUR
Power supply
Rectification
Filtration
CHAPTER FIVE
Design of sequential Counter
CHAPTER SIX
Design of the transistor/Relay Drive
CHAPTER SEVEN
Design of system timing circuit
Design of an interated timing circuit
Astable multivbrator
Asignchronous counter
Synchronous counter
CHAPTER EIGHT
Construction and packaging
Packaging
Problem encountered and solutions
References
ABSTRACT
This design implementation of this electronic sequential sign post display employs the use of some specialized components. This section of the project introduces the reader to the different section of the project and the components that makes them up.
Emphasis are laid on describing the behaviour and operational system of the components as related to the project modeling, analysis, design and implementation of an ELECTRONIC SIGN POST, which is made up of a power supply, a shift register, a counter, multivibrator (555CMOSI.C) transistor, relay, resistors of different ohmic values capacitors, sensitive mic (for the switching system) and 220V AC lamp.
LIST OF FIGURES
Fig. 3.1: Block Diagram of a Dynamic Sign Display
Fig. 3.2: Arrangement of the Pattern Display
Fig. 4.1: Transformer Arrangement
Fig. 4.2: Bridge Rectifier
Fig. 4.3: Voltage and Current Waveforms
Fig. 4.4: Full Diagrams of Power Supply
Fig. 5.1: Four Bit Series in Parallel out Register Logic Circuit Arrangement
Fig. 5.2: Clear and Shift Sequence
Fig. 5.3: Circuit Diagram for SR Ftip-Flop
Fig. 5.4: Timing Diagram for SR Ftip-Flop Unclocked
Fig. 4.4.B: Clocke Circuit
Fig. 6.1: Transistor Switch/Relay Drive
Fig. 6.2: Wave form of a Monostable, Fti-Flop
Fig. 7.1: Astable Multivibrator
Fig. 7.2: Internal Block Diagram of CMOS555 Timer
Fig. 7.3: 555CMOS Connection as a Multivibrator
Fig. 7.4: 555CMOS Connection as a Timer
Fig. 7.5: 555CMOS Connection as a Monostable Vibrator
Fig. 8.1: Asynchroneous Decade Counter using Reset
Fig. 8.2: Asynchroneous Decade Using Feedback
Fig. 8.3: Timing Wave form
Fig. 8.4: Pin configuration of Latch Counter
Fig. 8.5: Circuit Diagrams of a Divided Counter
Fig. 8.6: Complete Circuit Diagram of Electronics Sign Post
Fig. 8.7: Complete Picture of Electronic Sign Post
TABLE OF CONTENTS
Title Page
Declaration
Approval Page
Dedication
Acknowledgements
List of Table
List of Figure
Table of Contents
Abstract
Description/Functions of Components Used with
List of Figures
CHAPTER ONE
Introduction
CHAPTER TWO
Literature review
CHAPTER THREE
Methodology
CHAPTER FOUR
Power supply
Rectification
Filtration
CHAPTER FIVE
Design of sequential Counter
CHAPTER SIX
Design of the transistor/Relay Drive
CHAPTER SEVEN
Design of system timing circuit
Design of an interated timing circuit
Astable multivbrator
Asignchronous counter
Synchronous counter
CHAPTER EIGHT
Construction and packaging
Packaging
Problem encountered and solutions
References
CHAPTER ONE
INTRODUCTION
The vehicle system control using telemetry application is all about using a radio wave to control and activate certain events such as the car horn, car head light, car ignition (starter) and car air conditioner etc.
This is achieved by using various tone frequencies by using an encoder via a radio frequency transmitter (low power) that provides the carrier frequency for these tones.
At the receiver end demultiplexing and decoding of these tone takes place via a detector/receiver stage. The output of the encoder is used to turn on a relay switch, which inturn connects power source to either the car engine, horn or lamp etc.
The application of thus project include space exploration, where lunar vehicles are controlled from earth station by using satellite as the medium of transfer of signals.
In the military warfare, unmanned air crafts, missiles and even armoured tanks are controlled these days by using the pinaple of telemetry applications. Other areas include GSM, where a subscriber has the total control of his telephone calls conversation through the BTS (Base Transmission or Transceiver Station). Its application are so vast and large that they are too numerous to mention.
BLOCK DIAGRAM FOR TRANSMITTER CONTROL UNIT
BLOCK DIAGRAM FOR RECEIVER CONTROL UNIT
Telemetry system has two units the transmitter and receiver. The link between the two unit is radio wave. The transmitter sends tones of different frequencies the receiver receives the tones.
TRANSMITTER
Transmitter is a device that process and possibly encode information, so as to make it suitable for transmission and subsequent reception. In a transmitter the information modulates the carrier. It superimposed an a light frequency since wave modulation varies from one system to another and may be high or low levels. Modulations is of three types amplitude modulation, frequency modulation and pulse modulation or combination of these.
FREQUENCY MODULATION:
Frequency modulation is a system in which the amplitude of the modulated carrier is constant while its frequency and rate of change are varied by the modulating signal. Frequency modulation is much more immune to noise than amplitude modulation noise vector is superimposed on the carrier.
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