TEMPERATURE CONTROL SYSTEM (Term Paper Sample)

TEMPERATURE CONTROL SYSTEM Submitted in partial fulfillment of the requirements for the degree of Bachelor of Technology in Computer Science and Engineering by Yash Todwal - 19BCE0423 Aarushi Singhal - 19BCE0556 Niranjan Venkatesan - 19BCE0569 Aayushi Tiwari - 19BCE0666 Swetha Mohan - 19BCE2098 Under the guidance of Prof. Christina Josephine Malathi A School of Electronics Engineering VIT, Vellore 2569080199205 December 2021 DECLARATION We hereby declare that the project entitled “Temperature Control System” submitted by us, for the award of the degree of Bachelor of Technology in Computer Science and Engineering to VIT is a record of bonafide work carried out by us under the supervision of Prof. Christina Josephine Malathi A. We further declare that the work reported in this project has not been submitted and will not be submitted, either in part or in full, for the award of any other degree or diploma in this institute or any other institute or university. Place : Vellore Date : November 28, 2021 Signature of Candidates Yash Todwal Aarushi Singhal Niranjan Venkatesan Aayushi Tiwari Swetha Mohan ACKNOWLEDGEMENTS We take immense pleasure in thanking Dr. G. Viswanathan, our honourable Chancellor, VIT University and respected Dean, Dr K. Ramesh Babu, for having permitted us to carry out the project. We express gratitude to our guide, Prof. Christina Josephine Malathi A, for guidance and suggestions that helped us to complete the project on time. Words are inadequate to express our gratitude to the faculty and staff members who encouraged and supported us during the project. Finally, We would like to thank our ever-loving parents for their blessings and our friends for their timely help and support. Signature of Candidates Yash Todwal Aarushi Singhal Niranjan Venkatesan Aayushi Tiwari Swetha Mohan TABLE OF CONTENTS DeclarationPage No. 2 Acknowledgement……………………………………………… Page No. 3 1 Introduction 1.1 Objective……………………………………………….. Page No. 6 1.2 Motivation……………………………………………… Page No. 6 1.3 Background…………………………………………….. Page No. 6 2 Project Description and Goals……………………………… Page No. 7 3 Technical Specifications……………………………………. Page No. 7 4 Literature Survey………………………………………….... Page No. 8 5 Design Approach and Details 1 Design Approach / Materials and Methods 1 Block Diagram………………………………….. Page No. 20 2 Circuit Diagram………………………………… Page No. 20 3 Working of the System…………………………. Page No. 21 2 8086 Assembly Language Program Code…………….. Page No. 22 6 Schedule, Tasks and Milestones 3 Workflow of the Project………………………………. Page No. 27 7 Project Demonstration……………………………………. Page No. 28 8 Results and Discussion………………………………….. Page No. 29 9 SummaryPage No. 30 10. References……………………………………………….. Page No. 30 1 INTRODUCTION 1 Objective The objective of this project is to create a temperature control system for use in electronic appliances such as refrigerators, geysers, air conditioners, fans, coolers etc. The control system will be built with the help of an 8086 microprocessor. The control system will primarily be tested on a water bath, where the temperature of the water will be set and controlled by the control system. 2 Motivation The motivation for doing this project was primarily an interest in undertaking a challenging project in an interesting area of research. This was an opportunity to have a learning experience in microprocessors by trying to implement its existing applications. Also, it gave us an exposure to a field of application of microprocessors which had not been covered in lectures. 3 Background The microprocessor plays a significant role in the everyday functioning of industrialized society. It is a programmable logic device that can be used to control processes or to turn on/off devices. Nowadays, the microprocessor is being used in a wide range of products which are used in our day to day life. One of its important applications is the Temperature Control System, which is of great importance in industry as most of the processes are temperature dependent. 2 PROJECT DESCRIPTION AND GOALS A Temperature Control System is a type of a control system based on an 8086 microprocessor that automatically controls the temperature of an object or an area. Temperature Control Systems are used in air conditioners, refrigerators, geysers etc. where the temperature is automatically adjusted as per the input settings. Temperature Control System needs sensing circuitry, interfacing successive approximation analog to digital converter and circuit required to control it. It involves ADC and a typical method of measuring and controlling the temperature using a microprocessor. This system will control the temperature of a water bath. The users can set the desired temperature of the water in the system. After reaching the set temperature, the control system will switch off automatically. When the temperature of the water drops, the system will switch on automatically, hereby maintaining the temperature of the water at the set temperature. This system uses semiconductor sensor AD590 to monitor the temperature of the water bath. It generates a current O/P, depending on the temperature of the water bath. 8255 is interfaced with 8086 in I/O mapped I/O. ADC will give a binary equivalent of the I/P voltage to the microprocessor for the temperature controller. 3 TECHNICAL SPECIFICATIONS Software used - EMU8086 emulator Hardware used - W1209 temperature control switch Data cables Water heating rod 12 V DC power supply 4 LITERATURE SURVEY Paper Name Authors Technique Used Advantages and Disadvantages Automatic Srujan Kotagiri This paper The project Temperature Raju, Prof. GR presents an uses Arduino, Control System Sinha application of which is simple using Arduino control theory and user using ICT and friendly. Also, hardware-based it is the best to temperature be used for real control including time projects. design of a circuit (hardware) and implementation and testing on Arduino Uno board. The test results are displayed with the help of an LCD display. The program is written in Arduino IDE and facilitates the display of temperature in degrees centigrade and also in Fahrenheit. The Arduino Uno board facilitates the temperature measurements input to the fan and cooling system ON/OFF that is automatically done based on varied values of temperature . An Effective Temperature Control System Using PID Mechanism Sudhir Ranjan, Abhishek Sharma, Puneet Chaudhary In this paper, a temperature control system is developed using a PID controller to control the room's temperature. The room temperature is maintained at the desired temperature, and the air conditioner turns off if the desired temperature PID temperature controllers differ from on/off temperature controllers where 100% power is applied until the setpoint is reached, at which point the power is cut to 0% until the exceeds the room process temperature. temperature again falls below the setpoint. This leads to regular overshoots and lag which can affect the overall quality of the product. If the PID temperature controller is tuned properly it will compensate for the disturbance and bring the process temperature back to the setpoint, but reduce power as temperature approaches the setpoint so that it doesn’t overshoot and risk damaging the product with too much heat. Temperature Control System Emmanuel C. Ogu, Ekundayo John In this paper, a highly sensitive Temperature sensor detects the current temperature and feeds it as input to the Microcontroller. The Micro-controller then initiates a sequence of control procedures based on the configuration of the control program it contains. These control procedures would include: turning on/off a heating or cooling system and activating a buzzer/alarm unit. The use of microcontroller s adds an added advantage, as microcontroller s take low time to perform any operation, and acts as a microcomputer. Also, it is easy to interface additional RAM,ROM to microcontroller . It has a more complex structure than microprocessor s, so it requires a good understanding of it before using. Microcontroller based Temperature Rishikesh S. Sabale, Prof.J.V. Bute This report aims at controlling the temperature of a The use of microcontroller s adds an added Controller System composting process which is being heated by a 50 watt heating element. For controlling the temperature of the heating coil the current through the heating element is controlled. The thermal energy produced by the heater is directly proportional to the square of the current passing through the heater coil. Hence, by controlling the current through the heater coil, the heat produced ...