USER'S INSTRUCTIONS: The project work you are about to view is on "design and construction of an ambient light adaptive led light dimmer". Please, sit back and study the below research material carefully. This project topic "design and construction of an ambient light adaptive led light dimmer" have complete 5(five) Chapters. The complete Project Material/writeup include: Abstract + Introduction + etc + Literature Review + methodology + etc + Conclusion + Recommendation + References/Bibliography.Our aim of providing this "design and construction of an ambient light adaptive led light dimmer" project research material is to reduce the stress of moving from one school library to another all in the name of searching for "design and construction of an ambient light adaptive led light dimmer" research materials. We are not encouraging any form of plagiarism. This service is legal because, all institutions permit their students to read previous projects, books, articles or papers while developing their own works.
TITLE PAGE
BY
---
--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---
APPROVAL PAGE
This is to certify that the research work, "design and construction of an ambient light adaptive led light dimmer" by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.
By
--- . ---
Supervisor Head of Department.
Signature………………. Signature……………….
……………………………….
---
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.
PROJECT DESCRIPTION: This work "design and construction of an ambient light adaptive led light dimmer" research material is a complete and well researched project material strictly for academic purposes, which has been approved by different Lecturers from different higher institutions. We made Preliminary pages, Abstract and Chapter one of "design and construction of an ambient light adaptive led light dimmer" visible for everyone, then the complete material on "design and construction of an ambient light adaptive led light dimmer" is to be ordered for. Happy viewing!!!
This work is the design of an Adaptive Light Dimmer based on the method of sensing ambient light content to adjust lamp's light intensity accordingly, and thus regulating the room's light content. The device is designed to work with renewable energy sources such as wind and solar energy. This would be useful in less developed countries where AC electricity is not well spread and renewable DC sources, such as solar, can be better utilized. It functions by using the TSL2561 light sensor, ATTiny85 microcontroller to output PWM to the LED driver, LT3795 LED driver to output current to an LED and LT3014 LDO to lower the input voltage and power the microcontroller and sensor. The dimmer is designed to work with a 48V input voltage and operate from an input light range of 20 to 100 Lux. Above 100 Lux the light is off and below 20 Lux the light is fully on.
TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
- PROBLEM STATEMENT
- AIM AND OBJECTIVE OF THE PROJECT
- SIGNIFICACE OF THE PROJECT
- SCOPE OF THE PROJECT
- LIMITATION OF THE PROJECT
- METHODOLOGY
- PROJECT ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
- REVIEW OF LIGHT DIMMING
- HISTORICAL BACKGROUND OF THE STUDY
- REVIEW OF RELATED STUDIES
- DIMMING
- REVIEW OF LED LIGHTING TECHNOLOGY
CHAPTER THREE
METHODLOGY
- DESIGN REQUIREMENTS
- SYSTEM BLOCK DIAGRAM
- BLOCK DESCRIPTION
- SOFTWARE FLOW DIAGRAM
- SYSTEM HARDWARE DESIGN
CHAPTER FOUR
- RESULTS
- SIMULATION RESULTS
- HARDWARE CONSTRUCTION AND RESULTS
CHAPTER FIVE
- CONCLUSION AND RECOMMENDATION
REFERENCE
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE STUDY
With regard to efficiently using sustainable energy, there is a significant amount of data supporting the energy saving capabilities of light dimming technology. Some state that smart lighting, using sensors and controllers to control lighting, saves between 50% and 70% of energy compared to an uncontrolled lighting system [Basu et al, 2012]. These energy savings have huge impacts, considering that lighting accounts for about 19% of the electrical energy generated worldwide. In commercial buildings, lighting accounts for even more, 30-40% [Goyal et al, 2017]. This being said, smart lighting seems to be the next logical step in saving electricity and tackling the problems of world-wide electrification in today’s world.
In order to improve smart lighting technology, it makes sense to utilize electrical devices, such as microcontrollers, to increase efficiency and usability of lighting systems. Microcontrollers would be a reasonable choice for controlling light dimmer due to their decreasing costs, versatility, and ease of use [Shu et al, 2018]. In addition to microcontrollers, DC-DC converters are also essential to improving smart lighting systems [Mahadeokar et al, 2015]. These converters are the most efficient ways of converting DC power and consequently are used in many stages of power conversion. Without them, electronics, such as lighting systems, would be much more inefficient. Any improvements to these DC-DC converters directly improve the efficiency and performance of smart lighting systems.
There are existing solutions for AC lighting in the form of smart lighting and socket to bulb interfaces [Miki et al, 2013]. Smart lighting uses “smart systems” to control lighting with applications in computers, tablet devices, or smart phones. On a larger scale, they can also be used to control the lighting system of a room, house, or building. They can wirelessly turn on and off lights, control their brightness, set the lights on a timer, and even integrate sensors. Existing socket to bulb interfaces use a sensor in an attempt to dim the bulb appropriately but they do not function very well. An example of an AC powered smart lighting device, called a home light control module (HLCM) and designed by Ying-Wen Bai and Yi-Te Ku, uses passive infrared (PIR) sensors, light sensors, a microprocessor, and an RF module to control light intensity in all the rooms of a house [Bai et al, 2008]. A single HLCM controls one set of luminaires. As a result, multiple microprocessors determine lighting levels, rather than a single central controller. This device uses the PIR sensors to determine the presence of any people in a room, turning off the lights if no one occupies the room. The light sensors determine the room's brightness levels. If outside sources, like daylight, provide enough light, then the luminaires are turned off. Otherwise, the system activates the appropriate amount of luminaires to achieve the desired brightness levels. The device's RF module allows communication between different HLCMs. In the case that brightness levels are insufficient even when all luminaires are on, communication between HLCMs allows an adjacent HLCM to increase the number of lights to activate. This then affects the light intensity of the first device's room. While these components help this device operate with high efficiency, the design presented in this paper needs not contain any unnecessary modules if their inclusion greatly increases purchase costs. For example, there won’t be any need to use the RF module if its use produces costs that outweigh its energy benefits. Additionally, the HLCM does not use light dimming technology while the proposed solution is based on light dimming.
However, there are currently no existing DC dimmers that are inexpensive and entirely autonomous. The objective of the proposed solution is therefore to design and construct an adaptive DC light dimmer that autonomously dims a set of LEDs depending on the ambient light sensed in the room, providing the appropriate amount of light to the environment it is in. The end product of this project will save electricity usage; thus, reducing electrical costs and increasing the viability of renewable energy.
1.2 PROBLEM STATEMENT
The traditional light dimmer operation involves users operation to adjust the brightness of the lamp, and this involves much labour and most times wastes energy such as when the user need to adjust it but neglect or forgot to adjust it. This new invention came to overcome these problems. This devices automatically adjusts the intensity of an electric lamp accordingly by sensing ambient light content, and thus regulating the room's light content
1.3 AIM AND OBJECTIVES
The main aim of this work is to build a device which controls or adjusts the intensity of an electric lamp accordingly by sensing ambient light content, and thus regulating the room's light content. The objectives are:
- To save energy
- To reduce human labour
- To apply solar energy in our homes
1.4 SIGNIFICANCE OF THE STUDY
The device was built to work with renewable energy sources such as wind and solar energy. Working with renewable energy sources would be useful in less developed countries where AC electricity is not well spread and renewable DC sources, such as solar, can be better utilized.
This study will also help the student to understand how to implement light sensors and renewable energy sources in a project.
1.5 SCOPE OF THE STUDY
The scope of this work covers using sensors and controllers to control lighting, saves between 50% and 70% of energy compared to an uncontrolled lighting system according to Kuo (2012). The device functions by using the TSL2561 light sensor, ATTiny85 microcontroller to output PWM to the LED driver, LT3795 LED driver to output current to an LED and LT3014 LDO to lower the input voltage and power the microcontroller and sensor.
1.6 LIMITATION OF THE STUDY
As we all know that no human effort to achieve a set of goals goes without difficulties, certain constraints were encountered in the course of carrying out this project and they are as follows:-
- Difficulty in information collection: I found it too difficult in laying hands of useful information regarding this work and this course me to visit different libraries and internet for solution.
- Difficulty in parts gathering: I found it too difficult when gathering electronics parts used for the prototype.
1.7 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,
- programming of microcontroller
- Design and calculation for the work was carried out.
- Studying of various component used in circuit.
- Construct the whole circuit.
- Finally, the whole device was cased and final test was carried out.
1.8 PROJECT ORGANISATION
The work is organized as follows: chapter one discuss the introductory part of the work, chapter two presents the literature review of the study, chapter three describes the methods applied, chapter four discusses the results of the work, chapter five summarizes the research outcomes and the recommendations.
CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of "design and construction of an ambient light adaptive led light dimmer" is also available. Order full work to download. Chapter two of "design and construction of an ambient light adaptive led light dimmer" consists of the literature review. In this chapter all the related work on "design and construction of an ambient light adaptive led light dimmer" was reviewed.
CHAPTER THREE: The complete chapter three of "design and construction of an ambient light adaptive led light dimmer" is available. Order full work to download. Chapter three of "design and construction of an ambient light adaptive led light dimmer" 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 an ambient light adaptive led light dimmer" is available. Order full work to download. Chapter four of "design and construction of an ambient light adaptive led light dimmer" 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 an ambient light adaptive led light dimmer" is available. Order full work to download. Chapter five of "design and construction of an ambient light adaptive led light dimmer" consist of conclusion, recommendation and references.
To "DOWNLOAD" the complete material on this particular topic above click "HERE"
Do you want our Bank Accounts? please click HERE
To view other related topics click HERE
To "SUMMIT" new topic(s), develop a new topic OR you did not see your topic on our site but want to confirm the availiability of your topic click HERE
Do you want us to research your new topic? if yes, click "HERE"
Do you have any question concerning our post/services? click HERE for answers to your questions
For more information contact us through any of the following means:
Mobile No 
:+2348146561114 or +2347015391124 [Mr. Innocent]
Email address 
:engr4project@gmail.com
Watsapp No 
:+2348146561114
COUNTRIES THAT FOUND OUR SERVICES USEFUL
Australia, Botswana, Canada, Europe, Ghana, Ireland, India, Kenya, Liberia, Malaysia, Namibia, New Zealand, Nigeria, Pakistan, Philippines, Singapore, Sierra Leone, South Africa, Uganda, United States, United Kindom, Zambia, Zimbabwe, etc
Support: +234 8146561114 or +2347015391124
Watsapp No :+2348146561114
Email Address :engr4project@gmail.com
FOLLOW / VISIT US VIA:
