Thesis Abstract

Abstract
This research project focuses on the design and implementation of a microcontroller-based multipurpose security device for securing a military cantonment. The device is equipped with direction capabilities to detect and locate intruders within the cantonment area. Additionally, the security device is designed to control access to a strong room within the cantonment to enhance overall security measures. The primary objective of this project is to develop a sophisticated security system that can effectively monitor the military cantonment premises and provide real-time alerts in case of any unauthorized intrusion. The proposed security device utilizes advanced sensor technologies and microcontroller programming to ensure accurate detection and tracking of intruders. The security device is designed to be versatile and multipurpose, offering a range of functionalities to enhance the overall security infrastructure of the military cantonment. In addition to intruder detection and location capabilities, the device also includes access control features to secure the strong room within the cantonment. Key components of the security device include motion sensors, infrared sensors, a microcontroller unit, and a directional antenna system. The motion sensors are strategically placed across the cantonment area to detect any movement or unauthorized activity. The infrared sensors help in identifying the presence of intruders even in low light conditions. The microcontroller unit serves as the central processing unit of the security device, responsible for data processing, decision-making, and communication with the control center. The directional antenna system enables the device to determine the precise location of the intruder within the cantonment premises, providing valuable information to the security personnel for prompt action. Overall, the proposed security device offers a comprehensive solution for enhancing the security measures in a military cantonment. By combining advanced sensor technologies, microcontroller programming, and direction capabilities, the device provides an effective means of detecting, locating, and controlling intruders within the cantonment area. Additionally, the access control features for the strong room further strengthen the overall security infrastructure of the cantonment, ensuring the protection of valuable assets and sensitive information.

Thesis Overview

INTRODUCTION

1.1.  Background to 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 the1950'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   Objectives of the Study

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.