Design And Construction Of An Alarm Using Your Own Voice
This alarm plays your prerecorded voice message. It is built around the readily available quartz clock. Take the buzzer out of the quartz clock and connect its positive terminal to pin 1 and negative terminal to pin 2 of optocoupler IC MCT2E (IC2). Pin 4 of IC2 is grounded and pin 5 is connected to trigger pin 2 of monostable multivibrator.
TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRACT
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
- PURPOSE OF THE PROJECT
- AIM OF THE PROJECT
- OBJECTIVE OF THE PROJECT
- PURPOSE OF THE PROJECT
- LIMITATION OF THE PROJECT
- ADVANTAGES OF THE PROJECT
- PROBLEM OF THE PROJECT
- APPLICATION OF THE PROJECT
- RESEARCH QUESTION
- PROJECT ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
- OVERVIEW OF THE STUDY
- REVIEW OF THE RELATED STUDY
CHAPTER THREE
3.0 CONSTRUCTION METHODOLOGY
3.1 BASIC OF THE SYSTEM
3.2 BLOCK DIAGRAM OF THE SYSTEM
3.3 SYSTEM OPERATION
3.4 CIRCUIT DIAGRAM
3.5 CIRCUIT DESCRIPTION
3.6 DESCRIPTION OF COMPONENTS USED
3.7 POWER SUPPLY UNIT
CHAPTER FOUR
4.0 TESTING AND RESULTS
- CONSTRUCTION PROCEDURE AND TESTING
- INSTALLATION OF THE COMPLET DESIGN
- ASSEMBLING OF SECTIONS
- TESTING OF SYSTEM OPERATION
- COST ANALYSIS
CHAPTER FIVE
- CONCLUSION
- RECOMMENDATION
- REFERENCES
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IC 555 (IC3) as shown in Fig. 2.
Fig. 1: Voice recording circuit
Fig. 1 shows the circuit for recording your voice message. When you press switch S2, it plays the meassage. The control circuit shown in Fig. 2 avoids the need for pressing switch S2 and thereby sounding the voice alarm automatically at the preset time.
Connect points A and B of the recording circuit to the corresponding points A and B of the control circuit. After making the connections, press record switch S1 to record your 6-second voice message through condenser microphone. Set the desired alarm time in quartz clock. At the time of alarm, buzzer terminals provide voltage to the internal LED of optocoupler IC2. This results in conduction of internal transistor of IC2, and its collector voltage at pin 5 drops to trigger IC3. The output of IC3 goes high for approximately 6 seconds. During this period, the prerecorded message is heard continuously. The message repeats every 6 seconds. The sound is loud enough in a room.
Fig. 2: Voice control circuit
The circuit operates off 3 volts and it can be easily fitted in a small box and fixed on the back side of the alarm quartz clock.
The voice control circuit is generally made up of 555 Timer IC. The circuit is shown above which generally includes MCT2E IC, 555 IC, two 2k resistors, 2.2k resistor, 56k resistor, 2 capacitors and one BC547 transistor.
This circuit is very useful for home and office use, if you want to give any message to your guests or clients when it is locked.
The Title Page should be the first section of your project “Design And Construction Of An Alarm Using Your Own Voice”, providing essential details like the project title, your name, your supervisor’s name, the institution, and the submission date. After that, the Abstract offers a brief summary of your project, touching on its purpose, methods, results, and conclusions in 150-300 words. The Acknowledgments section is where you can thank those who supported your research, such as your supervisor, peers, or organizations that provided resources.
Next, the Table of Contents organizes the Design And Construction Of An Alarm Using Your Own Voice by listing its chapters and sections, along with page numbers for easy reference. The List of Figures and List of Tables help guide readers to specific visual elements like graphs, charts, or tables included in the document. There should also be an Abbreviations and Glossary section to explain any specialized terms or acronyms, making the content clearer to readers unfamiliar with the technical language.
The main body of the Design And Construction Of An Alarm Using Your Own Voice should start with the Introduction, which provides background information, outlines the research problem, states your objectives, and gives a brief overview of your research methods. Following that, the Literature Review offers an in-depth look at previous research relevant to your project, identifying gaps your study aims to address. The Methodology section then explains the research design, tools, and data collection methods you used to conduct the project and analyze the data.
In the Results and Discussion section, you present your findings and discuss them in relation to the Design And Construction Of An Alarm Using Your Own Voice research questions or objectives, often using tables or charts to help explain the data. The Conclusion summarizes the key results, discusses their implications, and suggests possible directions for future research. You may also include recommendations based on your findings, offering practical advice for improvements or applications. Finally, the Design And Construction Of An Alarm Using Your Own Voice project should include a References or Bibliography section to list all the sources you cited, as well as Appendices for any additional material. A Statement of Originality is often included to confirm the authenticity of your work