DESIGN AND CONSTRUCTION OF A TRANSISTOR BASED SECURITY ALARM
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TITLE PAGE
DESIGN AND CONSTRUCTION OF A TRANSISTOR BASED SECURITY ALARM
BY
---
EE/H2013/01430
DEPARTMENT OF ---
INSTITUTE OF ---
DECEMBER,2018
APPROVAL PAGE
This is to certify that the research work, "design and construction of a transistor based security alarm" by ---, Reg. No. EE/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on Electrical and Electronics Engineering has been approved.
By
Dr. --- Dr. ---
Supervisor Head of Department.
Signature………………. Signature……………….
……………………………….
Dr. ---
External Invigilator
DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.
ACKNOWLEDGEMENT
The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.
PROJECT DESCRIPTION: This work “design and construction of a transistor based security alarm” research material is a complete and well researched project material strictly for academic purposes, which has been approved by different Lecturers from different higher institutions. We made Preliminary pages, Abstract and Chapter one of “design and construction of a transistor based security alarm” visible for everyone, then the complete material on “design and construction of a transistor based security alarm” is to be ordered for. Happy viewing!!!
The main objective of this project was to ensure a proper security to building against theft or intruder. 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
- INTRODUCTION
- PROBLEM STATEMENT
- AIM/OBJECTIVE OF THE PROJECT
- SIGNIFICANCE OF THE PROJECT
- SCOPE OF THE PROJECT
- LIMITATION OF THE PROJECT
- APPLICATION OF THE PROJECT
- 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
- CONCLUSIONS
- RECOMMENDATION
5.3 REFERENCES
LIST OF SYMBOLS
NAME SYMBOLS
Resistor
Diode
Zener diode 
Trimmer capacitor
Polarized capacitor 
Unpolarized capacitor 
Variable capacitor CHAPTER ONE
1.0 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 [1] [2].
The 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 [3].
The main aim of this work is to build a transistor based security alarm which can be used to protect properties.
1.1 PROBLEM STATEMENT
The need for having a constant 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. This device brought solution to this need. It ensures adequate protection against intruders.
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 and properties 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
Security 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 [8].
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 [8].
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 an intruder alarm. In this chapter, the background, significance, objective limitation and problem of a intruder alarm were discussed.
Chapter two is on literature review of an intruder 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.
CHAPTER TWO: The complete chapter two of “design and construction of a transistor based security alarm” is available. Order full work to download. Chapter two of “design and construction of a transistor based security alarm” consists of the literature review. In this chapter all the related work on “design and construction of a transistor based security alarm” was reviewed.
CHAPTER THREE: The complete chapter three of “design and construction of a transistor based security alarm” is available. Order full work to download. Chapter three of “design and construction of a transistor based security alarm” consists of the methodology. In this chapter all the method used in carrying out this work was discussed.
CHAPTER FOUR: The complete chapter four of “design and construction of a transistor based security alarm” is available. Order full work to download. Chapter four of “design and construction of a transistor based security alarm” consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of “design and construction of a transistor based security alarm” is available. Order full work to download. Chapter five of “design and construction of a transistor based security alarm” consist of conclusion, recommendation and references.
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