声明
Table of Contents
LIST OF ABBREVIATIONS
摘要
ABSTRACT
CHAPTER ONE:INTRODUCTION
1.1 General objective
1.2 Specific objectives
1.3 Problem statement
1.4 Significance of the study
1.5 Outline of the thesis
CHAPTER TWO:RESEARCH BACKGROUND AND LITERATURE REVIEW
2.1 Introduction to Greenhouse
2.1.1 Definition of a greenhouse
2.1.2 History
2.2 The principle of greenhouse
2.3 Environmental factors and plant growth
2.3.1 Introduction
2.3.2 Temperature
2.3.3 Humidity
2.3.4 Light Intensity
2.3.5 Soil moisture
2.3.6 Carbon Dioxide (CO2) Concentration
2.3.7 Conclusion
2.4 Serial Communication Interfaces
2.4.1 Universal Asynchronous Receiver/Transmitter (UART)
2.4.2 The Single Wire
2.5 MySQL Database
2.5.1 MySQL Features
2.5.2 MySQL Limitations
CHAPTER THREE:HARDWARE IMPLEMENTATION AND DESCRIPTION
3.1 Arduino Mega 2560
3.1.1 Hardware
3.1.2 Software
3.2 DHT11 Humidity and Temperature Sensor
3.2.1.Introduction
3.2.2 Overview
3.2.3 Communication Process
3.3 (SKU:SEN0114) Soil Moisture Sensor
3.3.1 Overview
3.3.2 Specifications
3.4 BH1750FVI Digital Light sensor
3.4.1 Overview
3.4.2 Specifications
3.5 MG811 CO2 sensor
3.5.1 Overview
3.5.2 Specifications
3.6 HR911105A Ethernet Shield
3.6.1 Overview
3.6.2 Specifications
3.7 Fan
3.8 Pump
3.9 Light Bulb
3.10 Relay module
CHAPTER FOUR:SYSTEM INTEGRATION
4.1 Design characteristics
4.1.1 Central station requirements
4.1.2 Control unit requirements
4.1.3 Sensor unit requirements
4.1.4 Development Platform
4.1.5 Design Constraints
4.2 Software Design and Implementation
4.2.1 Introduction
4.3 Overall Hardware Design
4.3.1 Processing unit
4.3.2 Sensor unit
4.3.3 Relay control unit
4.4 Overall Software Implementation
4.4.1 Introduction
4.4.2 Software design of the sensor unit
4.4.3 Software design of the control unit (Arduino Mega)
4.4.4 Software design of the central control station
4.5 Web Application Design
4.5.1 Understanding the web development
4.5.2 Web GUI (Graphical User Interface)
4.5.3 MANUAL Mode
4.5.4 AUTO Mode
4.5.5 Database
CHAPTER FIVE:CONTROL OF OPERATIONS AND SYSTEM EVALUATION
5.1 Introduction
5.2 Development of the proposed controller
5.2.1 Development of the proposed controller
5.2.2 Control Rules
5.3 Controller Implementation and Evaluation
5.4 System Evaluation
GENERAL DISCUSSION
CONCLUSION
RECOMMENDATIONS
REFERENCES
PUBLICATIONS
ACKNOWLEDGEMENTS
APPENDICES
南京农业大学;