Precision Agriculture Advisor: Dr. Liang Dong Victor Gomez Jr., - PowerPoint PPT Presentation

Miniature Greenhouses for Precision Agriculture Advisor: Dr. Liang Dong Victor Gomez Jr., Esdras Murillo, Yufeng Huang, Patrick Martin, Romina Rivadeneira, and Austin Zehr GROUP: DEC1617

Goals Background Create Environmental 1 Growth Chambers Functional Extended Create a system for the Plant Sciences Automatic Water Institute that can manage environmental 2 Pump System conditions and track plant growth progress Implement an Autonomous Robotic 3 Imaging System Miniature Greenhouses for Precision Agriculture – DEC1617 2 2

System Components – At a Glance 2 3 1. Large Cooling Chamber 1 2. Robotic Imaging System 3. Large Heating Chamber 4 4. Cooling Chamber LED Lighting System 5. Heating Chamber LED Lighting System 7 6 5 6. Small Cooling Chamber 7. Automated Water System Miniature Greenhouses for Precision Agriculture – DEC1617 3 3 DEC1617

Project Specifications Soil Moisture Monitoring Variable LED Lighting System and Watering System Imaging and Documentation Temperature Control of Plant Development Miniature Greenhouses for Precision Agriculture – DEC1617 4 4 DEC1617

System Demonstration Miniature Greenhouses for Precision Agriculture – DEC1617 5

Large Chamber – Design Parameters Dimensions 19.5” x 19.5” x 33” Dual layered acrylic containers with foam insulation Magnetic front door and top view hole for plant image capture Miniature Greenhouses for Precision Agriculture – DEC1617 6 6 DEC1617

LED Lighting System Spring Semester Progress ● 33W LED Strips ● Red-Red-Blue, and White LED strips New System Features 201 3W LED Bulbs (~500W) ● 117 Red, 36 Blue, 18 White, 30 Far Red ● Variable light intensity using Arduino ● External cooling system ● Miniature Greenhouses for Precision Agriculture – DEC1617 7

Chamber Temperature Control System - Heating System Layout Temperature Range: 21°C - 45°C. Arduino Logic: ● User sets temperature ● Calculate average temperature from 4 thermistors ● Set space heater ON if: ● Average temp < Set Temp ● Set release fan ON and space heater OFF if: ○ Average temp > Set Temp ○ Temperature accuracy: +/- 1.8°C Miniature Greenhouses for Precision Agriculture – DEC1617 8 8 DEC1617

MiDAS - Heating Chamber Testing Mobile Data Acquisition System (MiDAS) Large Heating Chamber - Temperature Range Test Miniature Greenhouses for Precision Agriculture – DEC1617 9

Chamber Temperature Control System - Cooling System Layout Temperature Range: 21°C - 10°C. Arduino Logic: ● User sets temperature ● Calculate average temperature from 4 thermistors ● Set Cooler ON if: ○ Average temp > Set Temp ● Set Cooler OFF if: ○ Average temp < Set Temp ○ Temperature accuracy: +/- 1.5°C Miniature Greenhouses for Precision Agriculture – DEC1617 10 10 DEC1617 10

MiDAS - Cooling Chamber Testing Large Cooling Chamber - Temperature Range Test Miniature Greenhouses for Precision Agriculture – DEC1617 11

Small Chamber – Design Parameters Dimensions 8” x 8” x 12” outer shell Easy access to add seeds Rotate between 90 and 0 degree Miniature Greenhouses for Precision Agriculture – DEC1617 12

Small Cooling Chamber & Control Miniature Greenhouses for Precision Agriculture – DEC1617 13 13 DEC1617 13

Temperature Control Using Power Module ● Min Temp required 10C ● Control V and I to TEC ● Calibration ● User interface Moto Shield 12Vdc 30A Arduino Arduino Logic: Controlled ● User sets temperature by sending a serial temperature setting ● Calculate average temperature from a Arduino Mega 2560 thermistors Miniature Greenhouses for Precision Agriculture – DEC1617 14

Plant holder for small chamber Servo Control Panel ● Two- tier (7” x 1.5” x 0.12”) acrylic panels ● Arduino slave control servo rotation Optional Wireless Connection ● HC06 bluetooth connector ● Servo controller interface adjust to 0-180 degree Miniature Greenhouses for Precision Agriculture – DEC1617 15 15 DEC1617 15

Automated Water Pump System System software System hardware Selectors Arduino Uno IO Pins Microcontroller MOSFET Decoder MUX (x32) 1 1 Decoder Water MUX 2 Pumps (x32) 2 Soil Sensors (x32) Miniature Greenhouses for Precision Agriculture – DEC1617 16 16 DEC1617 16

Robotic Imaging System Imaging System • Camera • Raspberry Pi ◦ I/O port controlled MOSFET Robotic Arm & Track • UR10 • Yaskawa Gripper Attachment • Used to move and doors for images Miniature Greenhouses for Precision Agriculture – DEC1617 17 DEC1617 17

Special Thanks Dr. Liang Dong Dr. Chris Currey Dr. Ulrike Passe Xinran Wang Leland Harker David Severson Miniature Greenhouses for Precision Agriculture – DEC1617 18

Questions? Miniature Greenhouses for Precision Agriculture – DEC1617 19 19 DEC1617