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TITLE PAGE
DEVELOPMENT OF A SOLAR POWERED BODY TEMPERATURE CHECKER
BY
---
EE/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---
DECEMBER,2018
APPROVAL PAGE
This is to certify that the research work, development of a solar powered body temperature checker by ---, Reg. No. EE/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.
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In this work, the design of a solar powered body temperature checking system is presented. The design was achieved using solar cell for a renewable energy source, ATMEGA 328P PU Microcontroller Unit, MLX90614 Infrared Sensor for achieving contactless measurement (wireless) and the DS1307 Real Time Clock (RTC) for accurate time keeping during the measurement of this parameter. The MLX90614 is factory calibrated in wide temperature ranges from - 40 ºC to 125ºC for the ambient temperature, while the DS1307 is a low-power clock/calendar with 56 bytes of battery-backed serial random access memory (SRAM). Power is supplied using a regulated 12 V DC from the solar panel which is stored in a rechargeable battery. The microcontrollers and RTC chip are powered by 5 V DC. The temperature sensor and liquid crystal display (LCD) require 3.3 V DC for operation and are supplied by passing the 5 V DC through a variable resistor. The sensors output values are both fed into the microcontroller. While monitoring temperature and telling time, the microcontroller sends the measurements in form of digital signal to the LCDs for display. This design was compared with a standard infrared thermometer by taking the body temperature measurements of two individuals at different times of the day. It was observed from the results that the difference between the temperature readings of the two thermometers ranges from 0 to 1 °C
TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRCT
TABLE OF CONTENT
CHAPTER ONE
- INTRODUCTION
- BACKGROUND OF THE STUDY
- PROBLEM STATEMENT
- OBJECTIVE OF THE PROJECT
- PURPOSE OF THE PROJECT
- SIGNIFICANCE OF THE PROJECT
- APPLICATION OF THE PROJECT
- SCOPE OF THE PROJECT
- LIMITATION OF THE PROJECT
- METHODOLOGY
- PROJECT ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
2.0 LITERATURE REVIEW
2.1 HISTORICAL BACKGROUND ANDDEVELOPMENT OF THE STUDY
2.2 PHYSICAL PRINCIPLES OF THERMOMETRY
2.3 THERMOMETRIC MATERIALS
2.4 PRIMARY AND SECONDARY THERMOMETERS
2.5 CALIBRATION OF THERMOMETERS
2.6 REVIEW OF TWO KINDS OF CONVENTIONAL THERMOMETERS
2.7 OVERVIEW OF SOLAR CELL
2.8 HISTORICAL BACKGROUND OF SOLAR CELL
2.9 EFFICIENCIES OF SOLAR PANEL
CHAPTER THREE
3.0 METHODOLOGY
3.1 SYSTEM BLOCK DIAGRAM
3.2 COMPONENTS OF THE SYSTEM
3.3 SOFTWARE DESIGN
3.4 SYSTEM FLOW CHART
3.5 MODE OF OPERATION
3.6 IMPLEMENTATION
CHAPTER FOUR
4.0 CONSTRUCTION PROCEDURE AND TESTING
4.1 CASING AND PACKAGING
4.3 PERFORMANCE AND EVALUATION
CHAPTER FIVE
5.1 CONCLUSIONS
5.2 RECOMMENDATION
5.2 REFERENCES
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE STUDY
Body temperature checker is an instrument used in measuring the temperature of a body. This device can also be called digital thermometer. The name thermometer is coined from the Greek words thermo, meaning “warm”, and meter, meaning “to measure”. So Body temperature checker measure temperature by using materials that change in some way when they are heated or cooled (Saidu et al, 2014; Bellis, 2011). Measurement of temperature has been a usual process since the early 11th century. Monitoring of temperature of a particular place or system is important so as to monitor the behavior of such a system (Med, 2002).
Temperature cheking devices are of integrated technology and are found in the area of electronics, computers, material and information Engineering. They play an important role in the medical/patient simulation system (Péter & Balázs, 2009). With the help of the temperature monitoring device, a doctor can get a lot of information about the condition of health of the individual. Patients who pay no attention to their body temperature are easily susceptible to contracting diseases/infections as well as some kind of sickness. Thus, for a good guarantee of the patient’s daily life, a monitor designed for measuring the body temperature at a specific time is needed.
Current advancements in the technology of temperature measurement have led to a huge variety of sensors and measuring instruments now being available for making accurate measurements.
This work focuses on a solar powered body temperature checking device, In the field of healthcare, temperature monitoring has assumed a very vital role both in the management of patient’s condition and general hospital storage facilities.
1.2 PROBLEM STATEMENT
Before this time, temperature has been measured using analogue meter. This means of measurement is subjected to error of parallax during the reading of the measurement and the battery that powers it dies after short period of time. Due to the precision requirements of the applications of a body temperature checker, there is a need to measure the quantity digitally in order to eliminate parallax error and also need to have alternative power supply – renewable energy. Moreover, in recent times, technology has moved from the phase of analogue to digital. Hence, this work focuses on a digital body temperature measurement using solar power. It presents the design and implementation of a digital body temperature checking system with clock to monitor the temperature of a system while also checking the time/period at which the measurement is made.
1.3 OBJECTIVE OF THE PROJECT
The objective of this work is to design a solar powered device used to measure the temperature of body which displays the reading via LCD.
1.4 PURPOSE OF THE PROJECT
The main purpose of this project is to determine the temperature a body which is powered by a solar energy.
1.5 SIGNIFICANCE OF THE PROJECT
- Accuracy: The temperature reading does not depend on scale reading and instead shown directly on the display. Hence temperature can be read exactly and accurately.
- Speed: the device can reach a final temperature in 5 to 10 seconds compared to conventional thermometers.
- Safety: Digital thermometers don’t use mercury, hence the hazards of the mercury is eliminated in case the thermometer breaks.
- Strong: The thermometer doesn’t needs to be shaken for the proper mercury level, hence the risk of the tube getting broken is eliminated.
- LCD display: this device has the ability of displaying the temperature value in Celsius
1.6 APPLICATIONS OF THE PROJECT
The body temperature checking system measures human body temperature around 37⁰C. These thermometers are mostly probe type or ear type. It measures without making physical contact with the person.
1.7 SCOPE OF THE PROJECT
The above system consists of temperature sensor IC MLX90614 which is 4 pin IC and can measure temperature from -40ºC to 125ºC for the body temperature. It contains two pins which indicate if the measured temperature exceeds the user defined temperature. Thus this device can also be used to control the switching of loads incase of any temperature fluctuations.
In the above system, the temperature sensor first measures the ambient temperature and converts this temperature to digital data and feeds it to the microcontroller which displays the temperature reading on the display. Using the push button switches the user defined temperature can be set. When the ambient temperature increases or decreases than the user defined temperature, the microcontroller display the value via LCD.
1.8 LIMITATION OF THER PROJECT
- The measured body temperature of this device displays its reading in Celsius.
- The temperature range is from -40ºC to 125ºC for the body temperature
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,
- 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.
1.10 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 TWO: The chapter one of this work has been displayed above. The complete chapter two of development of a solar powered body temperature checker is also available. Order full work to download. Chapter two of development of a solar powered body temperature checker consists of the literature review. In this chapter all the related work on development of a solar powered body temperature checker was reviewed.
CHAPTER THREE: The complete chapter three of development of a solar powered body temperature checker is available. Order full work to download. Chapter three of development of a solar powered body temperature checker 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 development of a solar powered body temperature checker is available. Order full work to download. Chapter four of development of a solar powered body temperature checker 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 development of a solar powered body temperature checker is available. Order full work to download. Chapter five of development of a solar powered body temperature checker consist of conclusion, recommendation and references.
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