CONSTRUCTION OF BURGLARY TOUCH ALARM CIRCUIT
ABSTRACT
This project focuses on the construction of burglary touch alarm circuit which is capable of alerting the owner of the presence of an individual. When the circuit is power the transistors (T1T2) remained reverse bias and no current is seen flowing through them (cut-off mode). Once the human hand comes in contact with the two probes connected in one panel simultaneously, the T1 becomes forward bias and a signal is sent through the emitter to the base of T2 which also triggered the T2 to be forward biased thereby enhancing the glowing of the LED and sounding of the buzzen. This device can be used at homes, companies, offices etc. for security and easy identification of persons as well as creating awareness of the present of persons at the door post.
TABLE OF CONTENTS
Title Page- – – – – – – – – i
Certification- – – – – – – – ii
Dedication- – – – – – – – – iii
Acknowledgements- – – – – – – iv
Abstract- – – – – – – – – v
Table of Contents- – – – – – – – v-viii
CHAPTER ONE: INTRODUCTION
1.1 Background of the Study- – – – – – 1-2
1.2 Aim and Objectives of the Study- – – – – 3
1.3 Scope and Limitation of the Study- – – – – 3
1.4 Definition of Terms- – – – – – – 3-4
CHAPTER TWO: LITERATURE REVIEW
2.1 Existing Intrusion Detection System- – – – – 5-6
2.2 Intruder Alarm System- – – – – – – 6-7
2.3 Intrusion Detectors- – – – – – – 7-8
2.3.1 PIR (Passive Infrared Motion Detectors)- – – – 8-10
2.3.2 PET (Pet Immune Motion Detectors)- – – – – 11
2.3.3 Dual Technology Detectors- – – – – – 11-14
2.3.4 Magnetic Contact- – – – – – – – 14
2.3.5 Acoustic Glass Break Detectors- – – – – 14-15
2.3.6 Vibrational Chock Sensors- – – – – – 15-16
2.4 External Alarm Sounder- – – – – – – 16-17
2.5 Hardware Alarm Circuit Configuration- – – – 17
2.5.1 Single Nc and Single No Circuit- – – – – 17-19
2.5.2 EOLR- – – – – – – – – 19-20
2.5.3 DEOLE- – – – – – – – – 20-21
2.6 Intruder Alarm Function- – – – – – 21-23
2.7 Basic Intruder Alarm Rules- – – – – – 23-26
CHAPTER THREE: MATERIALS AND METHOD
3.1 Materials- – – – – – – – – 27
3.2 Methods- – – – – – – – – 27-29
CHAPTER FOUR: RESULTS AND DISCUSSION
4.1 Results- – – – – – – – – 30
4.2 Discussion- – – – – – – – – 30-32
CHAPTER FIVE: SUMMARY, CONCLUSION AND RECOMMENDATION
5.1 Summary- – – – – – – – – 33
5.2 Conclusion- – – – – – – – – 33-34
5.3 Recommendation- – – – – – – – 34
References
CHAPTER ONE: INTRODUCTION
1.1 Background of the Study
Security system are gaining increase importance in recent times to protect life and valuable resources, many advanced method of providing security have been developed and are in use in the last few decades. Of this one important area is the security system required for military /strategic applications, which has advanced greatly. But such systems being complex and expensive are useful to high end application only. However with recent progress in technology and the growing need for increased security in civilian and other applications, many low cost solutions for security system have now emerged. In the field of Burglar Alarm Systems using modern approaches has become a major means of providing security in all applications, both military and civilian.
Due to high state of insecurity being experienced in the entire world the need to keep the occupants of the office aware of any intrusion in to their premises forms part of the project.
Digital electronics applications were for many years confined to computer systems. In today’s world, the term “digital” has become part of our everyday vocabulary because of the dramatic way that digital circuits and digital techniques have become so widely used in almost all areas of life: computers, automated machine control, robots, energy monitoring and control, inventory management, medical science and technology, transportation, entertainment and space exploration. In modern homes, digital circuitry controls the appliances, alarm system and heating/ cooling systems. In corporate organization, digital circuitry is employed is almost every activity including employee s resumption timing, cash counting, processing payrolls, and communication.
This project involves the design and construction of a burglar alarm system. The burglar alarm system would be designed to cover and monitor the whole perimeter of a building to ensure that any movement made within the protected area would be sensed and a burglar alarm would be activated.
1.2 Aim and Objective of the Study
The aim of this research is to construct a burglary touch device that can alert properties owners of an intruder
The specific objectives are;
To construct burglary touch alarm
To test it functionality
To give useful recommendations based on the result of this work.
1.3 Scope and Limitation of the Study
This research is limited to only construction of burglary touch alarm circuit due to finance and time constraint.
1.4 Definition of Terms
Intruder: This is a person who intrudes or break into a building with criminal intent.
Alarm: This is a warning sound: signal for attention.
Control Panel: An electrical control panel is an enclosure, typically a metal box or plastic moulding which contains important electrical components that control and monitor a number of mechanical processes.
Strobe: This is a signal that validate data or other signals on adjacent parallel lines. It is often used in digital systems when multiple components communicate with each other. Among these are data and address strobe.
