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TITLE PAGE

 

BY

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--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---

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APPROVAL PAGE

This is to certify that the research work, "design and construction of sound detector with alarm " by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.

By
---                                                     . ---
Supervisor                                                  Head of Department.
Signature……………….                           Signature……………….        

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External Invigilator

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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.

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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.

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PROJECT DESCRIPTION: This work "design and construction of sound detector with 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 sound detector with alarm " visible for everyone, then the complete material on "design and construction of sound detector with alarm " is to be ordered for. Happy viewing!!!

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This project is titled design and construction of sound detector with alarm. sound detector with alarm is an electrical device that allows appliances/alarm and products to be turned on and off from sound. The most important feature of the sound detector with alarm is its small microphone. The microphone detects sound, such as laughs, slamming doors, and claps of hands. The sound is changed into electrical waves. The electrical waves are magnified by a transistor. The transistor feeds the amplified sound to a flip-flop circuit. The flip-flop reverses the output and feeds another amplified circuit. The amplified circuit is connected to a relay contact which acts as a mechanical switch. The relay can be connected to an electric device to make the device turn on and off by the clap of hands or a similar sound. 

TABLE OF CONTENTS
Title Page
Approval Page
Dedication
Acknowledgement
Abstract
Table of Content
CHAPTER ONE
1.0     Introduction
1.1     Application of the project
1.2     Objective of the project
1.3     Significance of the project
1.4     limitation/problem of the project
1.5     project motivation
1.6     scope of the project
1.7     benefit of the project
18      project organisation
CHAPTER TWO
2.0     Literature review
2.1     Review of Major Component used
CHAPTER THREE
3.0     Construction
3.1      System operation          
3.2     Circuit diagram
3.3     Parts list    
3.4     Circuit operation
CHAPTER FOUR 
Result analysis
4.0     Construction Procedure and Testing
4.1     Casing and Packaging
4.2     Assembling of Sections
4.3     Testing of System Operation
4.4      Cost Analysis

CHAPTER FIVE     
5.0     Conclusion
5.1     Recommendation
5.2     References

  

CHAPTER ONE
1.0                                        INTRODUCTION
With this sound detector with alarm, control by sound may be very useful, not just on a robot but also for a bit of home automation, for example a sound-activated light responding to a knock on the door or a hand clap. The light will be automatically switched off when the sound is repeated.
Sound detector with alarm is an electrical device that allows alarm to be turned on and off from sound. The microphone detects sound, such as laughs, slamming doors, and claps of hands. The sound is changed into electrical waves. The electrical waves are magnified by a transistor. The transistor feeds the amplified sound to a flip-flop circuit. The flip-flop reverses the output and feeds another amplified circuit. The amplified circuit is connected to a relay contact which acts as a mechanical switch. The relay can be connected to an electric device to make the device turn on and off by the clap of hands or a similar sound.

1.1                         APPLICATION OF THE PROJECT
Sound detector with alarm has many applications both in homes and industries. In homes, sound detector with alarm is as used to control a lamp in our rooms and environs.
In industries, sound detector with alarm is used to control an alarm and time of danger when the security of any place in industries is needed, and also used to monitor intruders in any given environment by activating an alarm when the noise of the intruder gets to the microphone of the system. It can be used to switch on/off any electrical appliances

1.2                           OBJECTIVE OF THE PROJECT
The objective of this project is to design and construct a sound activating device that can be used to control either a lamp or an alarm or any other load.
Want to build a simple sound detector with alarm that will toggle any load in response to your claps. This work is meant exactly for the said purpose. A small sound activated switch circuit comprising a sound amplifier and a flip flop is presented here, which can be easily built and used to toggle any electrical gadget through hand claps.

1.3                        SIGNIFICANCE OF THE PROJECT
This study exposes me to the function of a microphone such as that microphone converts the pressure waves caused by sound into vibrations within a coil which transforms the vibrations into electric signals.
This work also exposed me to application of transistor such as using transistor as a switch and also application of a relay such as relay is also used as a switch as well to control load.
Finally, this work mostly exposed me to how to construct this system and also exposed me to know the applications of the system such as: homes, sound activated switch is as used to control a lamp in our rooms and environs.  In industries, sound activated switch is used to control an alarm and time of danger when the security of any place in industries is needed, and also used to monitor intruders in any given environment by activating an alarm when the noise of the intruder gets to the microphone of the system.

1.5                                       STATEMENT OF THE PROBLEM

• In the industries like the petroleum or chemical industries, some production processes have been started or stopped due to accidental switching of machinery leading to injury or death. This can cause financial strain on a company.
• In the radioactive process, manual switching poses great health hazards to the operator due to the side effects of exposure to the radioactive elements.
• Manual switching is an uphill task for the disabled and the aged due to movement constraints.
• Sometimes, we are victims of electric shocks from our devices when we try to switch them ON/OFF due to leaking currents from the electric switches.

1.7                                   PROJECT MOTIVATION
The motivation of this project is to fulfil the following;

• To eliminate the stress in walking from end to end, or room to room of a building to switch devices ON/OFF.
• The provision of remote switching helps to safe guard operators and equipment.
• To ensure a reliable and safe method of switching domestic and industrial devices.

1.8                                      SCOPE OF THE PROJECT
The scope of this work is defined by the following points
I.  The switching interface in this project is of the general purpose type as it is not restricted to only one type of load.
          II.      The clap signal accepted by the computer, will not be limited to just one person.
    III.      It will not be limited to low voltage, low current AC/DC applications of 240V maximum operating voltage.
    V.      The type of control this project employs is the simple ON/OFF control of devices.

1.9                                        BENEFIT OF PROJECT
This project’s completion will be of great benefit to our ever demanding and developing society. Some of these benefits include;
    I.      Accidental switching of devices will be reduced to a minimum in our industries and homes.
   II.      Walking from point to point to switch switches will be a thing of the past.
  III.      This project will possess the LOCK and UNLOCK functions, which will prevent unintentional switching any time the user wishes
  VI.      Our industries and homes will become friendlier to disabled people.

1.10                        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 work is on the introduction to a sound detector with alarm. In this chapter, the background, significance, objective limitation and problem of a sound detector with alarm were discussed.
Chapter two is on literature review of a sound detector with 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 FIVE
5.1                                        CONCLUSIONS
At the end of this work, the aim of the work was achieved. With this gadget you can turn on household devices with the clap of your hands, plugs into standard light sockets, Works with lamps and other devices, can be used in tandem with a second clapper for turning on multiple devices
The sound activated on/off switch. With this sound activating switch, 2 Claps turn on the lamp, TV. The system can control one or two appliances at the same time. Set the dial to Home or Away. Connect your appliance(s) into the system.

5.2                                         RECOMMENDATION
Due to advance electron logy in the electronic which gave rise to automation of electronic system in domestic and industrial use. This development is what gave me the courage to choose a project topic on sound detector with alarm system. This system employ four discreet stages with power supply namely, the pickup microphone, Amplifier, Schmih trigger, thysistor switch circuit with rally circuit and 1kHz turn generator which from the alarm circuit at the input of the system a transducer which a capacitor microphone whose the function is to piece the sound and it out put to feed in to class. A amplifier microphone preamplifier of two transistor stage cable of amplifier the sound to a standard were it be accepted by the schmih trigger or built using comparator with hysterics. 
This project is designed to be used in our homes, offices and industries where the need for Security is needed. And should be used and maintain by a qualified personnel.

 

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CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of "design and construction of sound detector with alarm " is also available. Order full work to download. Chapter two of "design and construction of sound detector with alarm " consists of the literature review. In this chapter all the related work on "design and construction of sound detector with alarm " was reviewed.

CHAPTER THREE: The complete chapter three of "design and construction of sound detector with alarm " is available. Order full work to download. Chapter three of "design and construction of sound detector with 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 sound detector with alarm " is available. Order full work to download. Chapter four of "design and construction of sound detector with 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 sound detector with alarm " is available. Order full work to download. Chapter five of "design and construction of sound detector with alarm " consist of conclusion, recommendation and references.

 

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