Thesis Abstract

Abstract
In this research project, a microcontroller-based multipurpose security device was designed and implemented with the capability to secure a military cantonment from intruder location and detection. The device also includes features to control access to a strong room within the cantonment. The system utilizes various sensors such as motion sensors, infrared sensors, and magnetic door sensors to detect intruders and unauthorized access attempts. The microcontroller processes the sensor data and triggers appropriate responses such as sounding alarms, sending alerts to security personnel, and activating deterrent mechanisms. A key feature of the security device is its direction capability, which enables it to pinpoint the location of intruders within the cantonment. This is achieved through the use of multiple sensors strategically placed around the cantonment perimeter and key access points. By triangulating the sensor data, the device can accurately determine the direction from which the intruder is approaching, allowing security personnel to respond swiftly and effectively. The strong room access control feature of the device adds an extra layer of security by restricting access to authorized personnel only. This is achieved through the use of biometric scanners, keycard readers, or other authentication methods integrated into the device. Access logs are maintained to track entry and exit times, providing a comprehensive audit trail for security purposes. The device is designed to be user-friendly, with a graphical user interface (GUI) that allows security personnel to monitor and control the system easily. The GUI displays real-time sensor data, alarm statuses, and access logs, providing a comprehensive overview of the cantonment's security status at a glance. The system can also be configured to send automated alerts to designated personnel via email, SMS, or other communication channels in case of security breaches. Overall, the microcontroller-based multipurpose security device offers a comprehensive and effective solution for securing a military cantonment from intruders and controlling access to sensitive areas such as strong rooms. Its direction capability, access control features, and user-friendly interface make it a valuable asset for enhancing security measures in high-risk environments like military installations.

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