design and construction of computer controlled switching

7/31/2019 Design and Construction of Computer Controlled Switching

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DESIGN AND CONSTRUCTION OF COMPUTER

CONTROLLED SWITCHING

PRESENTED

BY

AKINSEYE, SEGUN OTANG

06/EEN/022

SUBMITTED

TO

THE DEPARTMENT OF ELECTRICAL/ELECTRONIC

ENGINEERING

FACULTY OF ENGINEERING

CROSS RIVER UNIVERSITY OF TECHNOLOGY

CALABAR CAMPUS


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CERTIFICATIONThis is to certify that this project is an authentic work carried out by AKINSEYE,

SEGUN OTANG with Registration number (06/EEN/022) in the department under the

supervision of Pastor S, A. UJOMU.

MR

-------------------------------- Signature:SUPERVISOR -----------------------------

Date:

------------------------------

ENGR. DR E. E. EKPENYONG Signature:

------------------------------

HEAD OF DEPARTMENTDate:

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----------------------------------------------------------------------

EXTERNAL EXAMINER

DATE:----------------------------------------------------


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DEDICATION

This report is especially dedicated to the almighty God for his protection,

provision, and his infinite mercy and grace, which granted me the opportunity to

partake in this project and finish successfully.


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ACKNOWLEDGMENT

This project owes its success from commencement to completion, to people involved

with the project at various stages. I acknowledge with due courtesy my regards to all the personsand sources consulted during the development of this project and preparation of this report. I

express my sincere gratitude to the almighty God for his protection and guidance throughout my

stay in school.

I am grateful from the core of my heart to my supervisor, pastor S, Ojomu for his valuable

time, help and motivation which kept me going to the fulfillment of this project.

Also, it gives me immense pleasure to express my profound gratitude and thankfulness to

Engr. Dr E.E. Ekpenyong (HOD Electrical/Electronics Engineering) and my lecturers Engr

Akpama, Engr Eworo, Engr Ironbar, for their experience, guidance and instructions to

accomplish this project successfully.

This successful journey would not have been possible without my beloved parents, for their

financial and moral supports throughout my stay in school, because without them I would not

have been able to accomplish this task on my own.

My special thanks goes to My lovely sister Simi baby, my brother, Rotimi Akinseye, mylovely friends, Cynthia, Stanley Ntaji, Daniel Ajuk, Victor Ofene, Asi Onob, Nsikak Tom,

Gregory wonah, Sunday Ogar, Eloma Eloma, folashade, teressa peter, and all others, for their

encouragement, cooperation and concern about my success and for always giving me useful

information and directions.

I cannot also forget all staff and students of electrical engineering department for their

numerous advice and cooperation throughout this program. Where will I ever find a word to

appreciate you enough? Just to say thank you all.


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TABLE OF CONTENT

Title page. i

Certification ii

Dedication..iii

Acknowledgement.. iv

Abstract...v

Table of contents vi

CHAPTER ONE: GENERAL INTRODUCTION

1.1 Introduction.. 11.2 computer ............21.3 parallel port.31.4 Basic concept.51.5 Terminology51.6 Objectives of the study8 1.7 Justification of the project..91.8 Scope of work91.9 Methodology9

CHAPTER TWO: OVERVIEW OF COMPUTER CONTROLLED SWITCHING

2.1 Review of computer controlled switching.10

2.2 overview of parallel port11

CHAPTER THREE: DESIGN PROCEDURE

3.1 Introduction20

3.2 The hardware subsystems 20

3.3 Description of salient components..27

CHAPTER FOUR: CONSTRUCTION PROCEDURE / TESTING


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4.1 Introduction32

4.2 Design procedure..32

4.3 choice and justification of programming language.32

4.4 system module..33

4.5 system flow chart..37

4.6 program listing 38

CHAPTER FIVE: RECOMMENDATION AND CONCLUSION

5.1 Problems encountered54

5.2 Recommendation for further improvement.54

5.3 summary54

5.4 Conclusion .55

REFERENCES.56

APENDIX A (System Components)....57

APENDIX B (Component Cost Analysis).58


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ABSTRACT

This project focuses on the development of a Computer Controlled Switching System on

Windows platform. The home appliances can be controlled through parallel port on PC by

program developed using software for example Microsoft Visual Basic and Hypertext Pre-

Processor (PHP). The home appliances and the PC can be accessed and controlled via parallel

port cable by the Computer Controlled Switching System program. Parallel port interface circuit

was constructed for the purpose of the controlling the appliances. Basically the parallel port is to

be used as a media interface in this controlling purpose. With just a D-Type 25 Pin Male

Connector, buffers, relays and simple wiring, the computer can be interfaced to the external

devices.

Keywords: Switching, computer, control, printer port interfacing, home automation.

design and construction of computer controlled switching

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