ABSTRACT
This project work has covered the design of an automatic security lighting system for ATBU, Yelwa Campus. Requirements for illuminance, type of fittings, power dissipation and mounting height were put into consideration. An electronic model of the campus was built with the streets outlined and lamps fixed at positions along the streets according to the design. An electronic control, based on a Light Dependent Resistor (LDR) is built, which provides automatic switch on and switch off of the system at dusk and dawn respectively. A delay is incorporated so that the circuit does not responds to small changes in illumination and any momentary brightness the transducers may sense and power requirements for the system is evaluated.
TABLE OF CONTENTS
Contents
Title page
Declaration
Certification
Dedication
Acknowledgement
Abstract
Table of content
Reference
List of Figure
List of Tables
CHAPTER ONE
1.0 INTRODUCTION
1.1 Background Information
1.2 Aim and Objectives
1.3 Problem Statement
1.4 Scope of work
1.5 Motivation
CHAPTER TWO
2.0 LITERATURE REVIEW AND THEORETICAL BACKGROUND
2.1 Introduction
2.2 Review of past work
2.3 Improvement of past work
CHAPTER THREE
3.0 ANALYSIS, DESIGN AND IMPLEMENTATION
3.1 Theoretical background and analysis
3.1.1 System block diagram of an automatic security lighting system for ATBU, Bauchi Yelwa Campus
3.1.2 Power Supply unit design
3.1.3 Transformer section
3.1.4 Voltage regulation section
3.1.5 Sensor unit design
3.1.6 Reference input
3.1.7 Comparator unit design
3.1.8 Delay unit design
3.1.9 Switching unit design
3.1.10 Lighting unit
CHAPTER FOUR
4.0 TEST, RESULTS AND DISCUSSION
4.1 Tests
4.1.1 Test on power supply
4.2 Results
4.3 Discussion
CHAPTER FIVE
5.0 SUMMARY, CONCLUSION AND RECOMMENDATION
5.1 Summary
5.2 Conclusion
5.3 Recommendation
REFERENCES
APPENDIX I: Circuit diagram of an automatic security lighting system
APPENDIX II: Side view of the soldered circuit
APPENDIX III: Front view of the soldered circuit
APPENDIX IV: Model of the automatic security lighting system for ATBU, Bauchi Yelwa Campus.
Fig.1 Block diagram of the automatic security lighting system
Fig.2 Power supply unit
Fig.3 Circuit for the sensory unit and comparator unit
Fig.4 Circuit diagram for delay unit and switching unit
LIST OF TABLES
Table 1: current, voltage, power and cable sizes of zone I
Table 2: current, voltage, power and cable sizes of zone II
Table 3: current, voltage, power and cable sizes of zone III
Table 4: current, voltage, power and cable sizes of zone IV
Table 5: current, voltage, power and cable sizes of zone V
