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Security Code Lock

Security Code Lock

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DEDICATION

This research material, titled “Security Code Lock” is dedicated to God for His boundless grace and guidance. It is also a tribute to all computer enthusiasts whose contributions made my research journey smoother and enriched my documentation process, making the experience truly fulfilling.



ACKNOWLEDGEMENT

I am profoundly grateful to everyone who contributed to the successful completion of this project. I am especially grateful to my Supervisor (Name), the Head of Department (Name), and the Lecturers in the Department of Electrical / Electronics Engineering (EE) for their invaluable guidance and support. I also acknowledge the contributions of authors and scholars whose works on Security Code Lock provided essential insights. Special thanks go to my study area (and any funding organizations, if applicable) for their financial assistance. I am equally thankful to stakeholders, including mentors, teachers, and colleagues, for their encouragement and support. Finally, I deeply appreciate my family and friends for their patience and unwavering support throughout this journey. Your contributions have been instrumental in making this research a reality.



TABLE OF CONTENTS

PRELIMINARY PAGES

CHAPTER ONE

  • 1.0 Introduction

CHAPTER TWO

  • 2.0 Literature Review
  • 2.1 History

CHAPTER THREE

  • 3.0 Components Used and Functions
  • 3.1 Microcontroller
  • 3.11 Programming The Peripherial Interphase Controller (Pic) 16F873A
  • 3.12 Rom Instruction Memory
  • 3.13 Ram Memory
  • 3.14 Crystal Oscillator 1
  • 3.15 Relay
  • 3.16 Resistor
  • 3.17 Voltage Regulator
  • 3.18 Transistors
  • 3.19 Push Button
  • 3.20 Soft Touch Switch (Keypad)
  • 3.21 LEDS

CHAPTER FOUR

  • 4.0 Construction/Operation
  • 4.1 Construction
  • 4.11 Circuit Diagram
  • 4.12 Block Diagram of A Code Lock Circuit
  • 4.13 The Operation
  • 4.14 Flow Chart of the Code Lock
  • 4.15 Programming The Microcontroller
  • 4.16 Procedure For Programming Device
  • 4.17 The Program For The Flow Chart

CHAPTER FIVE

  • 5.0 Conclusion and Recommendation
  • 5.10 Conclusion
  • 5.11 Recommendation

REFERENCES


ABSTRACT

Due to frequent unexpected access to restricted areas being encountered in our societies nowadays, from enemies or unwanted visitors, it has caused a lot of gatalities, inconveniences, data loss and serious business disruption, and other related damages. The Security Code Lock came into play in order to solve these problems.

Security Code Lock is a development of hardware base equipment security in the sense that, it makes use of “secret code” as mechanical, electrical or electronic device. The hardware is extremely easy to install with its high tech design, robust casing and stylish stainless finish, ensuring that it fits in most environment, from exclusive offices to stores and industrial premises.

The advantages of this technology are that, its great features allows us to introduce high-grade security into systems without requiring major changes in procurement directions. It minimizes impact on users substantial investment in both hardware and software system.

Details about Security Code Lock and its operation are treated in the subsequent chapters as enumerated below

Chapter one talks about brief introduction of Security Code Lock and the occurrence that usher their effective use, which eventually made them popular.

Chapter two deals on literature review of the Security Code Lock, which is the overview of the equipment. This involves the history, inventions, researches, various contributions by engineers and scientist.

Chapter three discusses the characteristics of each component used with their symbols

Chapter four discuses its construction, mode of operation, included are the block, circuit and flow chart diagram. Finally conclusion and recommendation falls in chapter five.


Security Code Lock

CHAPTER ONE

1.0 Introduction

A security code lock is a flexible and versatile lock control system. It makes use of ‘code lock' as electrical, electronic or mechanical derive. It is a simple and secure method of locking equipment without having the need to directly operate the equipment by press contact. It removes the need for keys or buttons, taking away the hassle and cost of copying or replacing lost ones.

The new Encyclopedia Britannica, 1768 defines code lock as electrical/electronic/ mechanical device for securing an equipment so that it cannot be opened except by series of manipulations that can be carried out only by a person knowing the secret or code. The security code lock is a practical and code locking solution, ideal for commercial or residential premises, minimizing the risk of unwanted visitors gaining access to a restricted area-without impairing the dialing activities of tenants of staff.

With this hardware circuit we can lock up to one or more devices by a safeguard password chosen by the user to protect the system and as well unlock the system by entering an access code when the equipment is needed for use. An entry code reader transmits entered access codes to the controller. The controller compares the entered access to pre stored access codes and actuates the lock in response to the entered access code.

In case of power failure, the device will not create any problems, no operation or re-programming will be needed as well as all command are automatically memorized by the system and when the power is re-established the device restore immediately the last status of lock or unlock that had been commended.

Areas of Application

  1. Door with electric lock.
  2. Garage door.
  3. House lights.
  4. Water pumps.
  5. Electric Sunshade.
  6. Block the engine of your car or your motor cycle at the steal case and much more.
This material contains electrical diagrams, circuits, illustrations and more (Very detailed)…

CHAPTER TWO

2.0 Literature Review

2.1 Introduction

This chapter focuses on the review of related literature. A literature review includes the current knowledge as well as theoretical and methodological contributions to a particular topic. It documents the state of the art with respect to the topic you are writing. It surveys the literature in the topic selected. In this research work the literature review includes the conceputal review, theoretical framework, the review of related literature …

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Defense Procedure for Electrical / Electronics Engineering Researchers

In preparation for defending a project or seminar on Security Code Lock, it is imperative that as a nursing student, you demonstrate comprehensive knowledge of your research. The defense process is structured to include presenting your work, answering questions, and illustrating its pertinence. Initially, provide a succinct yet thorough introduction to your research topic, emphasizing its importance and the objectives, ensuring that both the audience and the External Examiner can understand the scope of your study.

Prior to your defense, be thoroughly acquainted with your research abstract and the critical elements of Chapter One, including motivation for embarking on this research, problem statement, objectives, and significance. In Chapter Two, be ready to cite at least two references from the literature review. For Chapter Three, you should be equipped to discuss the methodologies, tools, and techniques utilized. In Chapter Four, defend your research by justifying the findings and linking them to your research objectives.

Conclude your defense by succinctly summarizing the study and offering insightful, evidence-based recommendations. A professional dress code, such as wearing a suit and tie, is vital to create a favorable impression and elevate your presentation.

During the question and answer segment, the External Examiner may pose questions pertaining to your research. If confronted with a challenging or irrelevant question, respond diplomatically with, “Sorry, Sir/Madam, the question asked is beyond the scope of my study.” Whenever possible, direct your answers back to your research findings to reinforce your expertise.

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