CONSTRUCTION OF AUTOMATIC EMERGENCY LIGHTING SYSTEM

Abstract
The uninterrupted power is only dedicated for the purposed of illumination. Light is so important to man, so there is need to build an emergency lightening system to help reduce the problem encounter due o frequent interrupted power failure. This is reason for this project report which is CONSTRUCTION OF AUTOMATIC EMERGENCY LIGHTING SYSTEM. These project forms a stand-by source of light energy to man, it operates with the principles that when there is power failure the system will automatically switch on a lamp being power by A.D.C source (battery) when there is poor power supply from the main lamp goes off and the battery begins to charge using a rectifier circuit. Furthermore, this also emphasis on the battery  level sensor, when incorporated and the battery level when drops out that will affect the entire systems and this led to high capacity battery to be introduce to the system.

Table of contents

Title page                                            i
Certification                                        ii
Dedication                                        iii
Acknowledgement                                     iv
Table of contents                                    v
Abstract                                            vii

CHAPTER ONE
1.0    Introduction                                    1
1.1     Background of the study                            1
1.2    Statement of the problem                            3
1.3    Objective of the study                            4
1.4    Significance of the study                            4
1.5    Scope f the study                                5
1.6    Research questions                                5

CHAPTER TWO
LITERATURE REVIEW
2.0     Description/citation                                6
2.1    The transformer                                7
2.2     Relay                                        8
2.3     The battery                                     9
2.4    Resistor                                         10
2.5    Diodes                                        12
2.6    Light emitting diode (LED)                            13
2.7    Capacitor                                         14
2.8    Lamp                                        15

CHAPTER THREE
3.0     Circuit and principle of operation                    16
3.1    Block diagram and description                        16
3.2    Circuit diagram and description                    17
3.3    Principle of operation                            18
3.4    Conclusion                                     20
References                                    21