آنالیز سیستم مانیتورینگ کمباین با پردازش تصویر
(پایان نامه کارشناسی ارشد دانشگاه آیوا ، 2014)
تعداد 100صفحه
NTS
List of Figures ...................................................................................................................... iv
List of tables ........................................................................................................................ vi
Abstract .............................................................................................................................. vii
CHAPTER 1. Introduction.................................................................................................. 1
1.1 Thesis Organization ........................................................................................... 1
CHAPTER 2. Literature Review ......................................................................................... 3
2.1. Development Yield Monitoring Technology ...................................................... 3
2.2. Current Yield Monitoring Technology Opportunities ........................................ 4
2.2.1. Field Management ......................................................................................... 6
2.2.2. Variable-Rate Planting.................................................................................... 8
2.2.3. Fertilizer Application ...................................................................................... 9
2.3. Study of the Accuracy of Yield Monitors ......................................................... 11
CHAPTER 3. Objectives ................................................................................................... 17
3.1. Objective 1 ....................................................................................................... 17
3.2. Objective 2 ....................................................................................................... 17
CHAPTER 4. Development of a Test Stand ..................................................................... 18
4.1. Introduction ..................................................................................................... 18
4.2. Objectives ........................................................................................................ 19
4.3. Materials and Methods ................................................................................... 20
4.3.1. Grain Storage ............................................................................................... 21
4.3.2 Grain Metering .............................................................................................. 23
4.3.3. Ground Truth Mass Flow Measurement ...................................................... 26
4.3.4. Grain Transfer .............................................................................................. 27
4.3.5. Controls/Data Collection System ................................................................. 30
4.3.6. Data Management ....................................................................................... 34
4.3.7. Data Processing ............................................................................................ 35
4.4. Results .............................................................................................................. 36
4.4.1 Test Data Results ........................................................................................... 37
4.5 Conclusions ...................................................................................................... 45
CHAPTER 5. Performance Evaluation of a Grain Mass Flow Sensor .............................. 46
5.1 Introduction ..................................................................................................... 46
5.2 Objectives ........................................................................................................ 48
5.3 Materials and Methods ................................................................................... 49
5.3.1 Test Stand Data ............................................................................................. 50
5.3.2 Field Data ...................................................................................................... 56
5.4 Results .............................................................................................................. 63
iii
5.4.1 Test Stand Data Analysis ............................................................................... 64
5.4.2 Harvest Season Data Analysis ....................................................................... 77
5.4.3 Summary of Results....................................................................................... 85
5.5 Conclusions ...................................................................................................... 87
CHAPTER 6. Bibliography ............................................................................................... 91
