DESIGN AND CONSTRUCTION OF A PASSWORD BASED DOOR LOCK SYSTEM USING MICROCONTROLLER
BY
EGBUDIWE INNOCENT .N
EE/2007/181
BEING A PROJECT SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENT FOR THE AWARD OF BACHELOR OF ENGINEERING (B.ENG) DEGREE IN ELECTRICAL/ELECTRONIC ENGINEERING CARITAS UNIVERSITY, AMORJI-NIKE ENUGU.
AUGUST 2017
CERTIFICATION
This is to certify that this work was carried out by, EGBUDIWE .N. INNOCENT of the department of Electrical/Electronic Engineering, Caritas University Amorji-nike, Enugu.
___________________ Date: _____________
Engr. E.C. Aneke
Project Supervisor
___________________ Date: ________________
Engr. C.O Ejimofor
Head of Department
__________________ Date: ________________
External supervisor
DEDICATION
The work is dedicated to the almighty God who with all his conglomerate efforts made my dream come true.
ACKNOWLEDGEMENT
My Profound gratitude goes to God Almighty who gave me good health and the strength throughout the period of this project. To my parents and siblings, I say a very big thank you for your financial and moral support during and after the completion of this project.
The Basic requirement of security can be achieved by designing electrical or mechanical locks that are designed with one or a few keys, but for locking a big area many locks are required. Basically traditional locks are heavy and are not protective as they can be broken down easily by using some tools. Electronic locking systems are preferable over mechanical locks, to resolve the security problems that are associated with the mechanical locks.
Nowadays every device’s operation is based on digital technology. For instance, token-based digital identity devices, Fort-token mobile and digital-based door lock systems for auto door opening or closing are all based on digital technology. These locking systems are used to control the movement of door and are functional without requiring a key to lock or unlock the door. These locking systems are controlled by a keypad and are installed at the side hedge of the door.
In this project, a keypad is attached to the door for opening and closing operations of the door. After entering the code, if that code matches with the predefined one, then the door will unlock for a limited period of time. After prolonging the unlocking for a fixed period of time, the relay reenergizes and the door gets locked again. If anyone enters a wrong code in an attempt to open the door and attempts thrice, then this system immediately switches an alarm or a buzzer.
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