Project Abstract

Abstract
The increasing need for advanced security systems in military establishments has led to the development of innovative technologies for securing sensitive areas such as strong rooms within a military cantonment. This research project focuses on the design and implementation of a microcontroller-based multipurpose security device that combines intruder location and detection capabilities with access control features to enhance the security of a military cantonment. The proposed security device utilizes a combination of sensors including passive infrared (PIR) motion sensors, ultrasonic sensors, and magnetic door sensors to detect and locate intruders attempting to breach the perimeter of the cantonment. The device is equipped with a directional feature that enables it to identify the specific location of the intruder within the cantonment, allowing security personnel to respond promptly and effectively to potential security threats. In addition to its intruder detection capabilities, the security device is designed to control access to a strong room within the cantonment. Authorized personnel are provided with unique access codes or RFID cards that allow them to unlock the strong room door using the security device. The device logs all access attempts, providing a detailed audit trail of strong room access for security purposes. The core of the security device is a microcontroller unit that processes sensor inputs, controls the directional feature, and manages access control functions. The microcontroller is programmed using embedded C language to execute the required security algorithms efficiently. A user-friendly interface, consisting of an LCD display and keypad, allows security personnel to interact with the device, configure settings, and view real-time data on intruder detection and access control activities. The implementation of the microcontroller-based security device in a military cantonment provides a comprehensive security solution that enhances the overall security posture of the establishment. By integrating intruder detection, location, and access control capabilities into a single device, the security device offers a versatile and cost-effective security solution for military applications. Overall, the research project demonstrates the feasibility and effectiveness of using microcontroller-based security devices for securing military cantonments, highlighting the importance of advanced security technologies in safeguarding sensitive military installations.

Project 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