unmanned aerial system for precision agriculture presentation · 2014. 5. 13. · unmanned aerial...
TRANSCRIPT
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Unmanned Aerial System for Precision Agriculture
Dr. Dharmendra Saraswat – Dept. of Biol. & Ag. Eng.
Dr. James Robbins – Dept. of Horticulture
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Outline
1. Background 2. Nursery Scenarios 3. System Introduction 4. Some Applications 5. Way to Go!!!!
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How did we get here? Dr. James Robbins
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Team Members Dr. J. Robbins Dr. D.Saraswat University of Arkansas
H. Stoven Oregon State University
Dr. J. Maja University of Florida
S. Doane J Frank Schmidt & Son Nursery
Dr. C. Landgren Dr. J. Owen Oregon State University
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May 2008
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June 2009
Development of a ground-based remote sensing system
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This looks easy
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…but many challenges.
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Containers: at least 55% of U.S. nursery production
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System Overview and Potential Precision
Agriculture Applications
Dr. Dharmendra Saraswat
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Systems Overview
Requirements: 1. Platform cost (<$10,000) 2. Capable of Vertical Take-Off and Landing 3. Flight Control Capabilities 4. Ease in Operator’s Training
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Systems Overview-contd.
APPA (Autonomous Platform for Precision Agriculture)
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Systems Overview-contd.
APPA
Payload Capacity : 2.2 pounds (1 kg) Powered by: Lithium-ion battery, 9-40 minutes Flight Control: a. Camera parallel b. On-board flight and navigation system c. Ability to follow a flight course
determined by pre-loaded waypoints d. Capable of hovering above a point of
interest
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Advantages: 1. High spatial resolution- spatial pattern, structure of soil 2. Quick deployment 3. Repeated deployment 4. Ideal for inventory management and other Precision Agriculture applications - field monitoring for irrigation system
failures, - fence integrity inspection, - identify crop stress due to nutrients,
diseases, water, weed, insect, herbicide etc.
APPA
System Overview-contd.
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High Resolution
APPA
System Overview-contd.
Google Earth Landsat Satellite
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Detailed View of the Field
APPA
System Overview-contd.
Sony NEX-5 Flying Height: 35 m (approx. 115’) Image size: 4592*3056 1 cm resolution = 0.3 acres
Flying Height: 85 m (approx. 279’) 5 cm resolution: approx. 13.7 acres
Flying Height: 60 m (approx. 197’) 2 cm resolution: approx. 1.4 acres
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Applications APPA
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Applications APPA
1. Inventory Management a. Christmas Tree Farms b. Open Field Nurseries c. Citrus Orchards 2. Row-Crops 3. Others
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Yule Tree Farm- Christmas Tree Farm
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Area of Interest
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Area of Interest
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Area of Interest
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Training
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Classify
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Identify
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Count Accuracy
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Challenge
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Inventory management in open-field nurseries
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Plant Count
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Inventory management in Pot-in-Pot Nursery
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Diameter Estimation/Plant Grade- Citrus
Source: Ehsani, UFL
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Sugarcane Fertility Trials
Source: Ehsani, UFL
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Visually, this variety in particular seems to be doing better than others on the dark soil
NDVI Image (dark soil vs. regular soil. The dark green shows higher biomass and healthier crop
False color image
Source: Ehsani, UFL
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Way to Go!!!
1. Challenges exist for creating image mosaic a. Microsoft Research Image Composite Editor (ICE) b. Ptgui c. Hugin, etc. 2. Distortion removal requires expertise in image
processing
3. Accuracy of on-board GPS needs improvement
4. An open source based system for standardized workflow is to be pursued in long range
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Acknowledgements
• Oregon Association of Nurseries (OAN)
• Oregon Department of Agriculture (ODA)
• J. Frank Schmidt Family Charitable Foundation
• J. Frank Schmidt & Son Co.
• Bailey Nurseries
• Arkansas Corn and Grain Sorghum Board