DESIGN AND CONSTRUCTION OF BURGLAR ALARM SYSTEM

DESIGN AND CONSTRUCTION OF BURGLAR ALARM SYSTEM
ABSTRACT

The main objective of this project was to ensure a proper security to building against theft or intruder. The circuit uses CD4011 Cmos IC which was wired as a timing circuit, as tone generator and amplifier to obtain a maximum audible sound. The CD4011 times the circuits and also generates a tone and this tone is send to transistor which amplifies the tone generated through a loud speaker or buzzer.
This device functions as a major security alarms  used in residential, commercial, industrial, and military properties for protection against burglary (theft) or property damage, as well as personal protection against intruders . It is an electronic device that is connected to the battery being installed in and gets activated when the owner of the building is leaving the building by moving the switch to the “set” position. When the system is in this “set” position, if intruder open and enters the building the alarm will start to blow after 20 seconds indicating that unauthorized has entered the building. The device and the “reset” switch are not seen but, it has an indicator light which shows that the alarm has been activated and it can only be reset by the owner of the building when return.

TABLE OF CONTENTS

 TITLE PAGE

APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRCT
TABLE OF CONTENT

CHAPTER ONE

    1. INTRODUCTION
    2. AIM/OBJECTIVE OF THE PROJECT
    3. SIGNIFICANCE OF THE PROJECT
    4. SCOPE OF THE PROJECT
    5. LIMITATION OF THE PROJECT
    6. APPLICATION OF THE PROJECT
    7. PROJECT ORGANISATION

CHAPTER TWO

LITERATURE REVIEW
2.0      LITERATURE REVIEW
2.1      REVIEW OF THE PROJECT
2.2     HISTORICAL BACKGROUND OF INTRUDER ALARM

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
3.5      COMPONENTS LIST
3.6     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

CHAPTER FIVE

    1. CONCLUSIONS
    2. RECOMMENDATION

5.3     REFERENCES

 

 

CHAPTER ONE
INTRODUCTION
The need for having home protection has always been there. But in the recent times, considering a dramatic rise in petty crimes like robbery and theft, the need has been more strongly felt to have a fool proof protection of the belongings and the family members. Home security has come a long way in the last few decades. It was in the hands of a guard who manually provided surveillance during nights in the earlier days, but it was not fool proof as it was only normal for him to have momentary lapse of concentration.
Burglar Alarm Working SchemeThe guard was also susceptible to sleep at times. It was then that home alarm system based upon electronic circuits were developed which proved to be highly reliable and were appreciated by the people as they were relieved from constant monitoring of their homes.
This intruder alarm system uses CD4011 Cmos IC which was wired as a timing circuit, as tone generator and amplifier to obtain a maximum audible sound. The CD4011 times the circuits and also generates a tone and this tone is send to transistor which amplifies the tone generated through a loud speaker or buzzer.
The reset button is used to reset or open circuit the system back to its initial stage. The system is powered with 12V power supply voltage.
The first chapter of this project is narrating on the introduction, the concept of the system and also the aims and objective. Chapter two is all about literature review. Chapter three talks about specification and operation of system component. Chapter four is operation of system. Chapter five is about construction, testing and packaging. Chapter six is conclusion, observation, recommendation and References.

1.2                                     AIM AND OBJECTIVE
The main aim and objective of the design and construction this project is to create a comfort in the minds of house owners when they out from their premises without much fear of intruder.

1.3                             SIGNIFICANCE OF THE PROJECT
This device functions as an electronics watch dog. This device functions as a major security alarms  used in residential, commercial, industrial, and military properties for protection against burglary (theft) or property damage, as well as personal protection against intruders.

1.4                                                         APPLICATION OF THE PROJECT
Burgular alarms are used in residential, commercial, industrial, and military properties for protection against burglary (theft) or property damage, as well as personal protection against intruders. Car alarms likewise protect vehicles and their contents. Prisons also use security systems for control of inmates.
1.5                                                 SCOPE OF THE PROJECT
This circuit will help you to guard your precious documents as well as jewellery from intruders or theft. All you need is just to place this circuit in front of the locker or below the mat so when any unknown person come and walk over the switch, the circuit will trigger and sound of alarm comes. The main benefit of the circuit is that these can be implied in two places at a time as two different switches produces two different sounds.

1.6                                           LIMITATION OF THE PROJECT

Can Be Expensive:

High quality, state-of-the-art alarm systems don’t come cheap. They require substantial initial investment, which includes equipment cost, installation and subscription of security monitoring service.

False Alarm:

Most systems are prone to false alarms that involve the alarm going off on you, or the alarm sounding off even when there’s no emergency situation. This can be extremely embarrassing, especially when the alarm sound sounds and the authorities – show, only to find that you tried to “break” your own house.

1.7                          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 works is on the introduction to a burgular alarm. In this chapter, the background, significance, objective limitation and problem of a burgular alarm were discussed.
Chapter two is on literature review of a burgular alarm. 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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