ABSTRACT
This door opening alarm alerts you of intruders which can be used for up to three doors. You simply need to fit a small unit including reed switch on each door frame and fix a magnet on the moving door such that the magnet aligns with the reed switch when the door is closed. A separate unit incorporating the power supply, three LEDs and a buzzer is to be kept by your side inside your room. A three core ribbon cable from this unit goes to each door unit. One core goes to the positive terminal, second to the negative terminal and third to the output of the unit. When the door is closed, the reed switch terminals are shorted and the alarm does not sound.
When door 1 is opened by someone, transistors in the corresponding door unit conduct and the buzzer sounds. LED1 glows to indicate opening of door 1. Due to diode latching action, the alarm will sound continuously even after the door is closed. It can be stopped only by pressing the reset switch of the door unit. Regulated 9V to 12V DC for operating the circuit is derived from AC mains and fed to the three units mounted on the doors. Battery-backup is also provided. When all the three doors are simultaneously opened, all the three LEDs will glow.
TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
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 COMPLETE DESIGN
- ASSEMBLING OF SECTIONS
- TESTING OF SYSTEM OPERATION
- COST ANALYSIS
CHAPTER FIVE
- CONCLUSION
- RECOMMENDATION
- REFERENCES
Door opening alarm circuit
Door opening alarm circuit
When door 1 is opened by someone, transistors in the corresponding door unit conduct and the buzzer sounds. LED1 glows to indicate opening of door 1. Due to diode latching action, the alarm will sound continuously even after the door is closed. It can be stopped only by pressing the reset switch of the door unit.
Regulated 9V to 12V DC for operating the circuit is derived from AC mains and fed to the three units mounted on the doors. Battery-backup is also provided. When all the three doors are simultaneously opened, all the three LEDs will glow.
This arrangement can be extended for more doors by increasing the number of door units connected to the audio-visual indication unit.
Design And Construction Of A Multidoor Opening Alarm With Indicator. (n.d.). UniTopics. https://www.unitopics.com/project/material/design-and-construction-of-a-multidoor-opening-alarm-with-indicator/
“Design And Construction Of A Multidoor Opening Alarm With Indicator.” UniTopics, https://www.unitopics.com/project/material/design-and-construction-of-a-multidoor-opening-alarm-with-indicator/. Accessed 20 September 2024.
“Design And Construction Of A Multidoor Opening Alarm With Indicator.” UniTopics, Accessed September 20, 2024. https://www.unitopics.com/project/material/design-and-construction-of-a-multidoor-opening-alarm-with-indicator/
Here’s a typical structure for Design And Construction Of A Multidoor Opening Alarm With Indicator research projects:
- The title page of Design And Construction Of A Multidoor Opening Alarm With Indicator should include the project title, your name, institution, and date.
- The abstract of Design And Construction Of A Multidoor Opening Alarm With Indicator should be a summary of around 150-250 words and should highlight the main objectives, methods, results, and conclusions.
- The introduction of Design And Construction Of A Multidoor Opening Alarm With Indicator should provide the background information, outline the research problem, and state the objectives and significance of the study.
- Review existing research related to Design And Construction Of A Multidoor Opening Alarm With Indicator, identifying gaps the study aims to fill.
- The methodology section of Design And Construction Of A Multidoor Opening Alarm With Indicator should describe the research design, data collection methods, and analytical techniques used.
- Present the findings of the Design And Construction Of A Multidoor Opening Alarm With Indicator research study using tables, charts, and graphs to illustrate key points.
- Interpret Design And Construction Of A Multidoor Opening Alarm With Indicator results, discussing their implications, limitations, and potential areas for future research.
- Summarize the main findings of the Design And Construction Of A Multidoor Opening Alarm With Indicator study and restate its significance.
- List all the sources you cited in Design And Construction Of A Multidoor Opening Alarm With Indicator project, following a specific citation style (e.g., APA, MLA, Chicago).