Sensitive Touch Alarm system is an electronic device that can be used as a security device. It is an electronic watch dog, because when installed to a door, and somebody touches the door, it sounds an alarm. The unit is built from discrete semi conductor device. It is relatively simple in both its operation and analysis. One particular feature of this project circuit (the door alarm system) is its versatility. The circuit can be adapted for other applications. All the Information necessary for its realization is contained in this project write-up. Chapter one contains the introduction to the door alarm system, Chapter two contains the circuit analysis and component review, Chapter three contains the research and methodology adopted, Chapter four contains the design and construction while the work was concluded with Chapter five.
Title Page
Certification – – – – – – – – i
Dedication – – – – – – – – – ii
Acknowledgement – – – – – – – iii
Abstract – – – – – – – – – iv
Table of content – – – – – – – – v
CHAPTER ONE
1.1 Introduction
1.1 Background of the study
1.2 Problem statement
1.3 Objective of the project
1.4 Purpose of the project
1.5 Significance of the project
1.6 Application of the project
1.7 Scope of the project
1.8 Methodology
1.9 Project organization
CHAPTER TWO
2.1 LITERATURE REVIEW – – – – – – 5
2.2 door alarm System – – – – – – 5
2.3 Types of touch activated alarm System – – – – 5
2.4 The D.C. Power Supply Unit – – – – 6
2.5 The Touch Point Unit – – – – – – 7
2.6 The Monostable Multivibrator Unit – – – 8
2.7 The Transistor Switching Unit – – – – 9
2.8 The Load Power Control Unit – – – – 11
2.9 The Alarm Sounder Unit – – – – – 12
2.10 Component Review – – – – – – 13
2.10.1 Transformer – – – – – – – 14
2.10.2 Diode – – – — – – – – 16
2.10.3 Capacitor – – – — – – – 17
2.10.4 Resistor – – – – – – – – 21
2.10.5 Silicon Controlled Rectifier – – – – – 23
2.10.6 555Timer IC – – – – – – – 25
2.10.7 Transistor – – – – – – – 30
2.10.8 Switch – – – – – – – – 33
2.10.9 Piezo Buzzer – – – – – – – 33
CHAPTER THREE
3.1 RESEARCH / METHODOLOGY – – – – 35
3.2 Design Philosophy – – – – – – 35
3.3 Design Approach – – – – – – – 35
3.4 Design Procedure- – – – – – – 36
3.5 Circuit Principle of Operation – – – – 38
CHAPTER FOUR
4.1 DESIGN AND CONSTRUCTION – – – – 40
4.1.1 Selection of the Transformer – – – – 40
4.1.2 Selection of the Diodes – – – – – 40
4.1.3 Selection of the Capacitor – – – – – 41
4.2 Design of the Power Supply Unit – – – – 42
4.3 Design of the Monostable Multivibrator – – – 42
4.4 Design of the Switching Unit – – – – 43
4.5 Design of the Load Power Control Unit – – – 45
4.6 Design of the Alarm Sounder Unit – – – 45
4.7 Construction of the Project – – – – – 46
4.7.1 Construction of the Main Electronic Circuit – – 46
4.7.2 Construction of the Casing – – – – – 47
4.3 Testing and Result – – – – – – 47
4.4 Bill of Engineering Measurement and Evaluation – 48
4.4.1 Cost Analysis – – – – – – – 48
CHAPTER FIVE
5.1 Conclusion – – – – – – – – 50
5.2 Recommendation – – – – – – – 50
5.3 References – – – – – – – – 51
Design And Construction Of A Sensitive Touch Alarm Security System. (n.d.). UniTopics. https://www.unitopics.com/project/material/design-and-construction-of-a-sensitive-touch-alarm-security-system/
“Design And Construction Of A Sensitive Touch Alarm Security System.” UniTopics, https://www.unitopics.com/project/material/design-and-construction-of-a-sensitive-touch-alarm-security-system/. Accessed 19 September 2024.
“Design And Construction Of A Sensitive Touch Alarm Security System.” UniTopics, Accessed September 19, 2024. https://www.unitopics.com/project/material/design-and-construction-of-a-sensitive-touch-alarm-security-system/
Here’s a typical structure for Design And Construction Of A Sensitive Touch Alarm Security System research projects:
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