CONSTRUCTION OF AN ELECTRONIC BELL INDICATOR

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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

Title Page                                                                                ii

Approval Page                                                                        iii

Dedication                                                                               iv

Acknowledgement                                                                             v

Abstract                                                                                  vi

Table of Contents                                                                    vii

CHAPTER ONE

Introduction                                                                                      1

• Aims and Objectives                              2
• Statement Of Problem 3
• Justification Of The Study 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

 

• 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.

However, the electronic bell indicator is an electronic device used as a mean of communication in large organizations such as big hotels, guest houses, hospitals etc.

The communication process is between the guest and the receptionist. For instance, if a guest in room one needs the attention of the receptionist, he will press the button or switch in his room and immediately the bell will ring to alert the receptionist, and the bulb will light in the receptionist’s office to indicate the particular room his/her attention is needed.

1.1     AIMS AND OBJECTIVES

          We carried out this research project improve the weaknesses described in the system above. The project is all about the design, construction and operation of an electronic bell indicator system. It was triggered by the need to have a new system as a better answer to communication problem being faced by guest in big hotels and guest houses. Therefore, we have compact the bulky system which has been in use in big hotels to a smaller model there by making it possible and easy to get for use in smaller complexes.

When the bigger circuit of an electronic bell indicator system is in place, a guest who probably stays at the fourth floor of a hotel needs the attention of the receptionist, all he requires to do is to press the bell push or switch in his room the receptionist at his desk on the ground floor will know that his