CONSTRUCTION OF AN ELECTRONIC BELL INDICATOR

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CONSTRUCTION OF AN ELECTRONIC BELL INDICATOR

ABSTRACT

The Electronic Bell Indicator system is the out come of research work geared towards providing solution to communication difficulty especially in hotels, guest houses and hospitals. This project work is a four room model connected on a circuit board.  It has red indicator light on the body of the circuit casing which indicates power on.  It also has an already made tremble bell. A control switch on the body of the casing acts as a control.           The bulb and the press button and also the bell are all mounted on the circuit board.  The electronic bell indicator system functions well and produces good sound.

 

TABLE OF CONTENTS

CHAPTER ONE

Introduction                                                                                     1

  1. Aims and Objectives                                                      2
  2. Statement Of Problem                                                   3
  3. Justification Of The Study                                             4
  4. Limitation Of The Study                                                         5

CHAPTER TWO

Literature Review                                                                            6

2.1     Operational stages of the electronic bell indicator                   7

2.2     Power supply                                                                16

 

CHAPTER THREE

Methodology                                                                           17

3.1     Components                                                                            17

3.2     Description of the electronic bell indicator                    18

3.3     Operational Technique                                                  18

3.4     The Construction                                                           19

CHAPTER FOUR

Trouble Shooting in the Electronic Bell Indicator                             21

CHAPTER FIVE

Conclusion and recommendation                                            23

5.1     Recommendation                                                           23

5.2     Conclusion                                                                     23

References                                                                      25

 

CHAPTER ONE

 

  1. INTRODUCTION

The problem of lack of efficient means of communication traced from the punitive age, when drums and gongs were the means of sending sound signals had appear to defar solutions.  Yet, it has been under continuous modification and improvement.

Whistle, flute, trumpet and some other sound instruments succeeded the era of ordinary drum.  They were then seen as better instrument for communication between two persons or groups of people.  All these geared towards finding a better and more convenient means of sending sound signals, manually operated mechanical bell signal stroke bell, continuous ring bell, tremble bell and later, electronic bell indicator was sequentially invented as a result of technological improvement.

 

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CONSTRUCTION OF AN ELECTRONIC BELL INDICATOR

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