Thesis Abstract

Abstract
This research project focuses on the development of a microcontrolled-based security system. The project aims to enhance security measures by utilizing microcontroller technology in securing various applications such as homes, offices, and industrial facilities. The system integrates sensors, actuators, and a microcontroller to detect and respond to security breaches effectively. The proposed security system employs various sensors including motion sensors, door/window sensors, and temperature sensors to monitor the environment continuously. When a security breach is detected, the system triggers appropriate responses using actuators such as alarms, lights, or automated locks. The microcontroller serves as the central processing unit that coordinates the interactions between the sensors and actuators. The microcontroller is programmed with a set of predefined rules and conditions to determine the appropriate actions in response to different security scenarios. By utilizing microcontroller technology, the security system can operate autonomously without the need for constant human intervention, making it more reliable and efficient in securing the premises. Furthermore, the security system is designed to be user-friendly, allowing users to easily configure settings, monitor security status, and receive real-time alerts through a user interface. The system can also be integrated with remote monitoring capabilities, enabling users to access and control the security system remotely via mobile devices or computers. The project also explores the potential for expanding the security system by incorporating additional features such as biometric authentication, video surveillance, and cloud-based storage for security data. These enhancements aim to further improve the overall effectiveness and reliability of the security system in preventing unauthorized access and ensuring the safety of the protected premises. In conclusion, the microcontrolled-based security system presents a practical and efficient solution for enhancing security measures in various settings. By leveraging microcontroller technology, this system offers a reliable and customizable approach to securing homes, offices, and industrial facilities. The integration of sensors, actuators, and a microcontroller enables the system to detect security threats promptly and respond effectively, ultimately providing peace of mind to users and enhancing overall security.

Thesis Overview

INTRODUCTION

1.1. Background of the Study

The industrial Electronics has changed the whole field of Engineering and technology is occurring so rapidly, even in developing countries. It is so because newer technologies overcome older ones. After the industrial revolution the world shifted towards the information age with the development of computers during the 1950’s.

As such, mechantronics means the principle that combines the application of mechanical and electrical means has taken over the greater part of industrial electronics which is indispensable in modern technology.

In Nigeria, security which is one of the basic lookouts in any productive firm, has been on the decrease. Most industries have gone bankrupt because of their inability to meet up to the security standard required in a modern day setting. Equally, some homes and offices have lost important documents and properties due to easy access that criminals have. There is thus an urgent need for significant security measures to improve the standard of living of the people, enhance development and put to a stop the menace of insecurity. That is the reason as a student of Computer System Engineering the project named “Intruder Detector Alarm System with direction”, was embarked on.

1.2 General Description of the Project

This electronic system consists of four sensors made up of opto couplers realized with combination of Laser beam, from Laser diode coupled into a cadmium sulfide photocell (C.D.S photocell).

This component serves as an electronic eye, the output of opto couplers conditioned by a Schmitt trigger NAND gate control Logic (74 Ls 132) TTL chip. The output of the 132 chips is used to trigger one short delay which reset an astable multi-vibrator which generates the frequency that is used to drive the buzzer alarm. Each of the sensor output is fed to a BCD to decimal priority encoder whose output is decoded to a format that can be displayed using a seven-segment display (common anode). The buzzer is interfaced through a single transistor static switch.

The entire system is designed in such a manner that whenever somebody wants to gain entrance through the back door, the electronic eyes (optocoupler) installed at the locations respectively senses the presence and triggers a buzzer alarm at the security department of the cantonment and seven-segment display shows the exact location of the intruder.

1.3 Aim and Objectives of the Project

1. The major aim of this project is to design and implement a microcontroller based multipurpose security device with direction capable of securing a military cantonment from intruder location and detection and to control access to a strong room in the cantonment.

2. Another objective of this project is to ground the graduating student in electronic system design and implementation involving Random logic.

3. This project is also aimed at acquainting the young engineers with skills for engineering, technical and scientific writing which is very indispensable in their professional practice.

4. Another aim of this project is to familiarize these graduating students with electronic system designs that have real life application in industrial security.