DESIGN AND CONSTRUCTIONOF A TRANSISTOR BASED DARK ACTIVATED STREET LIGHT
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TITLE PAGE
DESIGN AND CONSTRUCTION OF A TRANSISTOR BASED DARK ACTIVATED STREET LIGHT
BY
---
EE/H2013/01430
DEPARTMENT OF ---
SCHOOL OF --
INSTITUTE OF ---
DECEMBER,2018
APPROVAL PAGE
This is to certify that the research work, "design and construction of a transistor based dark activated street light" by ---, Reg. No. EE/H2007/01430 submitted in partial fulfillment of the requirement award of a B.Sc on --- has been approved.
By
Dr. --- Dr. ---
Supervisor Head of Department.
Signature………………. Signature……………….
……………………………….
Dr. ---
External Invigilator
DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.
ACKNOWLEDGEMENT
The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.
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This project work is on the construction of dark activated street lighting system. Which aimed at activating a switch or AC street light at sunset and deactivate it at sunrise.
This Dark activated street light can trigger a relay to operate an AC street light at Sunset. The lamp remains on till morning and then turns off. This eliminates the need of switching the Porch lamp daily and also helps to light the road/street.
The circuit utilizes the light sensing property of LDR to activate the circuit. The LDR (Light Dependent Resistor) has very high resistance in dark which reduces to a few Ohms in bright light.
TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRCT
TABLE OF CONTENT
CHAPTER ONE
- INTRODUCTION
- BACKGROUND OF THE PROJECT
- PROBLEM STATEMENT
- AIM/OBJECTIVE OF THE PROJECT
- SCOPE OF THE PROJECT
- SCOPE OF THE PROJECT
- SIGNIFICANCE OF THE PROJECT
- LIMITATION OF THE PROJECT
- APPLICATION OF THE PROJECT
- METHODOLOGY
- PROJECT ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
2.0 LITERATURE REVIEW
2.1 HISTORICAL BACKGROUND OF LIGHTING
2.2 REVIEW AND DESCRIPTION OF LED STREET LIGHT
2.3 REVIEW OF LIGHT SENSOR
2.4 LDR STRUCTURE AND WORKING
2.5 REVIEW OF THE MAJOR COMPONENTS USED
CHAPTER THREE
3.0 CONSTRUCTION METHODOLOGY
3.1 BLOCK DIAGRAM OF THE SYSTEM
3.2 CIRCUIT DIAGRAM
3.3 CIRCUIT DESCRIPTION
3.4 SYSTEM OPERATION
3.5 COMPONENTS LIST
3.6 DESCRIPTION OF MAJOR COMPONENTS USED
3.7 FACTORS FOR SELECTING AN APPROPRIATE RELAY
CHAPTER FOUR
4.0 RESULT ANALYSIS
4.1 CONSTRUCTION PROCEDURE AND TESTING
4.2 ASSEMBLING OF SECTIONS
4.3 CONSRUCTION OF THE CASING
4.4 TESTING OF SYSTEM OPERATION
4.5 INSTALLATION OF THE COMPLETED DESIGN
4.6 COST ANALYSIS
CHAPTER FIVE
- CONCLUSIONS
- RECOMMENDATION
5.3 REFERENCES
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
The controlling of street lights is usually maintained by an electrical department’s technician on several occasions. This is not only precarious but also sometimes results in wastage of power because of the negligence or unusual circumstances on part of the technician in operating the lights on and off. Not only in case of street lights, even for controlling the home appliances like garden or outdoor lights, we can utilize the dark activated street light for automatic switching OFF the lights based on daylight’s intensity by using a dark sensor.
Dark Activated street light is a electrical project circuit by which we can switch on and off the electrical street light automatically based on the day-light intensity instead of manually operating the switches.
By using this method, manpower can be reduced to a great extent. In case of the street lights/lamp erected on highways it is not an easy task to manually control them, but, if uncontrolled, the chances of power wastage would increase. To get rid of this situation, the implementation of a dark activated street light by using a dark sensor that switches lights automatically on and off is the best option.
1.2 PROBLEM STATEMENT
In the last decade, street light is been controlled by a technician and this involves labour, waste time and sometime may not be switched in time or may also be forgotten. This eliminates the need of switching the street light daily and also helps to light the premises of the house when the occupants are out of station.
1.3 OBJECTIVE OF THE PROJECT
The objective of this work is to design a transistor based device that will trigger street light when darkness fall on the sensor (LDR)
1.4 SCOPE OF THE PROJECT
A dark activated street light is an electronic consisting of LDR, transistor and Relay as connected in the main circuit, as shown below.
The circuit shown below requires a DC voltage, which can be supplied from mains by using a bridge rectifier instead of the battery. The bridge rectifier uses a step-down transformer to step-down the 230v into 12v.
This circuit is to switch ON or OFF the light when the LDR is covered by darkness or illuminated. The light dependent resistor will have high resistance in darkness and low resistance in the light.
1.5 SIGNIFICANCE OF THE PROJECT
This device is very useful in that it distinguishes daylight and dark hours. This device eliminates the need of switching the Porch lamp or street lamp daily and also helps to switch ON or OFF the premises of the house when the occupants are out of station.
1.6 LIMITATION OF THE PROJECT
One of the problems of this device is that any opaque material can trigger the device, such as human shadow, movement of animals or ants across the sensor can trigger the system
1.7 APPLICATIONS OF THE PROJECT
- Useful for automatic outdoor lighting or garden lighting at home.
- Useful for automatic switching of street lights.
- Useful for switching the hoardings on and off automatically.
- Useful for self-switching operation of displaying title hoardings of companies.
- Useful as a dark activated switch.
1.8 PROJECT MOTIVATION/CONSIDIERATION
The main considerations in the present field technologies are Automation, Power consumption and cost effectiveness. Automation is intended to reduce man power with the help of intelligent systems. Power saving is the main consideration forever as the source of the power(Thermal, Hydro etc.,)are getting diminished due to various reasons. The main aim of the project is Automatic street power saving system with LDR, this is to save the power. We want to save power automatically instead of doing manual. So it’s easy to make cost effectiveness. This saved power can be used in some other cases. So in villages, towns etc we can design intelligent systems for the usage of street lights.
1.9 METHODOLOGY
To achieve the aim and objectives of this work, the following are the steps involved:
- Study of the previous work on the project so as to improve it efficiency.
- Draw a block diagram.
- Test for continuity of components and devices,
- Design and calculation for the device was carried out.
- Studying of various component used in circuit.
- Construction of the circuit was carried out.
- Finally, the whole device was cased and final test was carried out.
1.10 PROJECT WORK ORGANISATION
The various stages involved in the development of this project have been properly put into five chapters to enhance comprehensive and concise reading. In this project thesis, the project is organized sequentially as follows:
Chapter one of this work is on the introduction to dark activated street light. In this chapter, the background, significance, objective limitation and problem of dark activated street light were discussed.
Chapter two is on literature review of dark activated street light. In this chapter, all the literature pertaining to this work was reviewed.
Chapter three is on design methodology. In this chapter all the method involved during the design and construction were discussed.
Chapter four is on testing analysis. All testing that result accurate functionality was analyzed.
Chapter five is on conclusion, recommendation and references.
CHAPTER TWO: The complete chapter two of “design and construction of a transistor based dark activated street light” is available. Order full work to download. Chapter two of “design and construction of a transistor based dark activated street light” consists of the literature review. In this chapter all the related work on “design and construction of a transistor based dark activated street light"
CHAPTER THREE: The complete chapter three of “design and construction of a transistor based dark activated street light” is available. Order full work to download. Chapter three of “design and construction of a transistor based dark activated street light” consists of the methodology. In this chapter all the method used in carrying out this work was discussed.
CHAPTER FOUR: The complete chapter four of design and construction of a transistor based dark activated street light” is available. Order full work to download. Chapter four of “design and construction of a transistor based dark activated street light” consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of design and construction of a “design and construction of a transistor based dark activated street light” is available. Order full work to download. Chapter five of “design and construction of a transistor based dark activated street light” consist of conclusion, recommendation and references.
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