This project work is on design and construction of an automatic emergency light system. An automatic emergency light is an electronics device used in turning light ON during dark condition. Automatic Emergency Light will turn on the Emergency light only during the Dark condition. Ordinary emergency light will be switched ON during the power failure condition. So that if there was a power failure in day time the ordinary emergency light will also be switched on. So there is a loss of power. Our system will continuously monitor the light falling on the LDR and when there was no sufficient light over the LDR and there is a power failure then it will switch on the Light. So that the place at which the circuit was connected will always in Bright. And if there is a power failure then the power to drive the emergency light was taken from the Battery supplied with the circuit.

 

TABLE OF CONTENTS

 TITLE PAGE

APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRCT
TABLE OF CONTENT

CHAPTER ONE

• INTRODUCTION
• AIM/OBJECTIVE OF THE PROJECT
• SIGNIFICANCE OF THE PROJECT
• SCOPE OF THE PROJECT
• LIMITATION OF THE PROJECT
• APPLICATION OF THE PROJECT
• ADVANTAGES OF THE PROJECT
• PROJECT ORGANISATION

CHAPTER TWO

LITERATURE REVIEW
2.0      LITERATURE REVIEW
2.1      HISTORICAL BACKGROUND OF THE PROJECT
2.2     MODERN INSTALLATIONS OF THE PROJECT
2.3     DESCRIPTION OF POWER OUTAGE
2.4      TYPES OF POWER OUTAGE
CHAPTER THREE

3.0      CONSTRUCTION METHODOLOGY

3.1      BLOCK DIAGRAM OF THE SYSTEM

3.2      CIRCUIT DIAGRAM
3.3      CIRCUIT DESCRIPTION
3.4      SYSTEM OPERATION
3.6     COMPONENTS LIST
3.7     DESCRIPTION OF MAJOR COMPONENTS USED

CHAPTER FOUR

4.0       RESULT ANALYSIS

4.1      CONSTRUCTION PROCEDURE AND TESTING
4.2      ASSEMBLING OF SECTIONS
4.3      CONSRUCTION OF THE CASING
4.4     TESTING
4.5     INSTALLATION OF THE COMPLETED DESIGN

CHAPTER FIVE

• CONCLUSIONS
• RECOMMENDATION

5.3     REFERENCES

 

 

CHAPTER ONE
1.0                                                        INTRODUCTION
In modern society, it is impossible to imagine life without electricity. Modern lives require a continuous supply of electricity. Not only industry, but also in the household. Take the case of an ordinary refrigerator. If you experience a power off situation, your food will be spoilt. But much more important, what if the power failure "spoils" your business. For example, uninterrupted power supply is needed for your server, which manages your accounting programme or provides uninterrupted operation of your website.
Emergency lights are very useful electrical gadgets and are quite popular, too. During a power failure these portable lights are able to instantly illuminate through battery back up and never allow us to stumble in the darkness. Although you will find a variety of them in different shapes and sizes in the market, but building your own emergency light at home can be a totally different experience. It will not only help you to create a quality design but also will acquaint you to the technical aspects of the unit. Besides, you also get an opportunity to customize the circuit as per your own needs.
The idea of the present emergency light circuit is truly compact, highly advanced, and may be kept plugged into the mains socket for a permanent automatic operation. The use of a Li-Ion battery makes it infinitely long lasting.

1.1                                             OBJECTIVE OF THE PROJECT
The objective of the work is to construct a device that When a power outage occurs, the lamp automatically illuminates. Instead of illuminating a lamp, when power supply is restored, the lamp is switched-off. The automation of the system is based on light dependent sensor used.

1.2                                         SIGNIFICANCE OF THE PROJECT
This device Provides light when the ordinary lighting fails due to a power cut. Required especially in villages where there are long power cuts. Important to install it near stairs or the place where level changes. Near safety signs it should be installed.
Basically a battery packed light device. This automatically switched on when the light is switched off or there is a blackout. Common in commercial and standard residential buildings. This device is:

•  Battery Efficient
•  Pollution free.
•  Easy to use.
• Very cheap
•  Easy to install anywhere.

1.4                                                 SCOPE OF THE PROJECT
Automatic Emergency light is often considered same as a light device running on an inverter. It is considered a device which has its one end connected to a power source and when the power supply is cut, the bulb glows with the power of inverter. emergency lighting work on the principle that when a power failure occurs in a household at night, a power failure light responds to provide emergency illumination so that the occupants may move about safely in order to take measures to restore the illumination either by changing fuses, if necessary, or by finding and deploying other light sources such as candles, portable electric lanterns, or the like.
1.5                                           LIMITATION OF THE PROJECT

• Not Durable
•  A bit delicate circuit

1.6                                          ADVANTAGES OF THE PROJECT

• This is very simple circuit and the cost is also very less.
• power is saved because the circuit switches the LEDs based on light conditions

1.7                                         APPLICATIONS OF THE PROJECT

• Used in child’s study rooms to avoid the sudden power failure.
• As an emergency lamp in homes.
• Used in security systems to switch ON the lights automatically during the power failure.

1.8                          PROJECT WORK ORGANISATION
The various stages involved in the development of this project have been properly put into five chapters to enhance comprehensive and concise reading. In this project thesis, the project is organized sequentially as follows:
Chapter one of this work is on the introduction to an automatic emergency lighting system. In this chapter, the background, significance, objective limitation and problem of an automatic emergency lighting system were discussed.
Chapter two is on literature review of an automatic emergency lighting system. In this chapter, all the literature pertaining to this work was reviewed.
Chapter three is on design methodology. In this chapter all the method involved during the design and construction were discussed.
Chapter four is on testing analysis. All testing that result accurate functionality was analyzed.
Chapter five is on conclusion, recommendation and references.

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