DESIGN AND CONSTRUCTION OF A TWO LANE SOLAR POWERED TRAFFIC LIGHT USING PLC
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TITLE PAGE
DESIGN AND CONSTRUCTION OF A TWO LANE SOLAR POWERED TRAFFIC LIGHT USING PLC
BY
---
EE/H2013/01430
DEPARTMENT OF ---
INSTITUTE OF ---
DECEMBER,2018
APPROVAL PAGE
This is to certify that the research work, "design and construction of a two lane solar powered traffic light using plc" by ---, Reg. No. EE/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on Electrical and Electronics Engineering 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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The steady supply of public power has always been a challenge in third world countries. The proposed solar based smart two lane junction traffic light is to work independent of public power supply using abundant renewable energy (solar). The solar traffic light is powered by battery which is charged during the day with solar PV and the battery continues working during the night. Managing traffic at a four way junction by humans can be a very complex and daunting job. A two lane traffic light can be used to solve this problem. The traffic lights on each lane controlled by a microcontroller are interconnected. The system displays the time allowed for passing and for waiting for each of the two lanes using a LEDs. The system was designed and simulated using Proteus, and then the hardware was implemented. The Circuit can be used to control traffic at two lane junctions.
TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRACT
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
- AIM OF THE PROJECT
- OBJECTIVE OF THE PROJECT
- PURPOSE OF THE PROJECT
- ADVANTAGES OF THE PROJECT
- DISADVANTAGES OF THE PROJECT
- LIMITATION OF THE PROJECT
- SCOPE OF THE PROJECT
- APPLICATION OF THE PROJECT
CHAPTER TWO
LITERATURE REVIEW
- OVERVIEW OF THE STUDY
- HISTORICAL BACKGROUND OF THE STUDY
- HISTORICAL BACKGROUND OF TRAFFIC LIGHT
- TYPES AND PLACEMENT OF COLOURS
- OVERVIEW OF AN INTERSECTION
- LANE DESIGN
CHAPTER THREE
3.0 CONSTRUCTION METHODOLOGY
3.1 SYSTEM OVERVIEW
3.2 SYSTEM BLOCK DIAGRAM
3.3 HARDWARE DESIGN CONSIDERATION
3.4 SOFTWARE DESIGN CONSIDERATION
3.5 THE SYSTEM CONSTRUCTION
3.6 DESIGN DETAILS
3.7 THE SYSTEM OPERATION
3.8 SYSTEM CIRCUIT DIAGRAM
CHAPTER FOUR
4.0 TESTING AND RESULTS
- CONSTRUCTION PROCEDURE AND TESTING
- CASING AND PACKAGING
- INSTALLATION OF THE COMPLET DESIGN
- ASSEMBLING OF SECTIONS
- PROBLEM ENCOUNTERED
- CONSTRUCTION AND TESTING
- RESULT DISCUSSION
CHAPTER FIVE
- CONCLUSION
- RECOMMENDATION
- REFERENCES
CHAPTER ONE
1.1 INTRODUCTION
Solar energy can be used to generate power in two-ways; solar thermal conversion and solar electric (photovoltaic) conversion. Solar thermal is employed in heating of fluids to produce steam to drive turbines for large scale centralized generation while solar electric (photovoltaic) which is considered in this paper, is the direct conversion of sunlight into electricity through photocells. A charge controller is an essential part of nearly all power systems that charge batteries, whether the power source is PV, wind, hydro e.tc [1]. A PV system consists of a PV array which converts sunlight to direct – current electricity, a control system which regulates the battery charging and operation of the load, energy storage in the form of secondary batteries and loads. The main function of a charge controller in a PV system is to keep batteries properly charged and safe for the long term, and to protect it from deep discharging [1], without a charge controller, the battery will overcharge. Absence of charge controller in PV system results in high maintenance cost including frequent battery replacement. Hence, a charge controller is important to prevent battery overcharging excessively, over discharging, reverse current flow at night and to prolong the life of the batteries in a PV system [1].
Traffic monitoring and controlling is a difficult task. The flow of the traffic constantly changes depending on the time of the day, day of the week and time of the year. At times, road construction and accidents further influence the complexity. Even for single junctions there might be no obvious solution and the problem becomes even more complex for the multiple junctions, as the state of one light in one junction directly influences the flow of traffic towards many other lights. With the ever increasing vehicles on the road and the number of road users, the limited resources provided by current infrastructure leads to ever increasing travelling times. Hence, intelligent control of traffic is an important issue to be considered. The services of our traffic wardens as well as that of the policemen can no longer adequately contain the situation; they cannot carry out a twenty-four hour duty. One way to improve the traffic flow and safety of the current transportation system is to apply automation and intelligent control methods to roadside infrastructure and vehicles. There are several models for traffic simulation. In our research, we intend to develop a cost effective system using Radio frequency (RF) technology, switches and latest high speed microcontroller [2] to achieve the desired results. The primary objective of this project is build a traffic controlling device that is not dependent on mains supply. Traffic jams may arise due to large red light delays which are hard coded and is independent of traffic [3]; in order to solve this problem an attempt will be made to design, and construct a two lane traffic light control system. Traffic lights alternate the right of way accorded to road users by displaying lights of a standard colour (red, amber, and green) following a universal colour-code and the whole system being powered by solar/battery. In the typical sequence of colour phases:
- The green light allows traffic to proceed in the direction denoted, if it is safe to do so
- The yellow/amber light denotes prepare to stop short of the intersection, if it is safe to do so
- The red signal prohibits any traffic from proceeding
1.1 OBJECTIVE OF THE PROJECT
The main objective of this work is to control an intelligent signaling devices powered by solar panels Positioned at two lane road intersections to control the flows of traffic for two lane junction.
1.2 PURPOSE OF THE PROJECT
The purpose of this work is to control the flows of traffic using solar energy with intelligent signaling device.
1.3 SIGNIFICANCE OF THE PROJECT
Traffic light controlled intersection with an associated fixed signal timing plan for two lane, while [5] proposed a system which can minimize the possibilities of traffic jams, caused by the traffic lights, to some extent by clearing the road with higher density of vehicles and also provides the clearance for the emergency vehicle if any.
1.4 SCOPE OF THE PROJECT
This paper explores the design and implementation of a microcontroller-based traffic light system for road intersection control with solar energy as the power supply. The traffic light system is designed using Programmable Integrated Circuit (PIC) 16F84A microcontroller, power section, crystal oscillator and light emitting diode (LED). Then, for effective traffic control, the PIC is implemented via an IC programmer using a mikro basic program written in Basic language. The developed traffic light control system is tested by constructing a prototype that resembles the real application. The functionality of the prototype shows that the developed system can be used for a real life traffic control at road intersection.
1.5 ADVANTAGES OF THEPROJECT
- Solar traffic lights are self-sufficient as they do not require external power sources.
- They are easy to set up and operate.
- They require very little to no maintenance as they have no moving parts.
- Risk of theft is higher as equipment costs are comparatively higher.
- Snow or dust, combined with moisture can accumulate on horizontal PV-panels and reduce or even stop energy production.
- Rechargeable batteries will need to be replaced several times over the lifetime of the fixtures adding to the total lifetime cost of the light. The charge and discharge cycles of the battery are important considering the overall cost of the project.
1.7 APPLICATION OF THE PROJECT
- This device is used in a two lane to control vehicular traffic.
- Solar traffic lights can also be used during periods following natural disasters, when the existing street lights may not function due to power outages and the traffic is uncontrollable. traffic lights used in such scenarios are designed to be portable enough to be carried and operated by police and relief workers wherever traffic needs to be regulated
1.8 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 this study. In this chapter, the background, significance, objective limitation and problem of this work was discussed.
Chapter two is on literature review of a solar powered two lane traffic lighting system. 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 two lane solar powered traffic light using plc” is available. Order full work to download. Chapter two of “design and construction of a two lane solar powered traffic light using plc” consists of the literature review. In this chapter all the related work on “design and construction of a two lane solar powered traffic light using plc” was reviewed.
CHAPTER THREE: The complete chapter three of “design and construction of a two lane solar powered traffic light using plc” is available. Order full work to download. Chapter three of “design and construction of a two lane solar powered traffic light using plc” 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 two lane solar powered traffic light using plc” is available. Order full work to download. Chapter four of “design and construction of a two lane solar powered traffic light using plc” 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 two lane solar powered traffic light using plc” is available. Order full work to download. Chapter five of “design and construction of a two lane solar powered traffic light using plc” consist of conclusion, recommendation and references.
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