weeding robot team 11 sponsor: jeff phipps advisor: dr. clark student members: ian nowak (ee) coen...
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![Page 1: Weeding Robot Team 11 Sponsor: Jeff Phipps Advisor: Dr. Clark Student Members: Ian Nowak (EE) Coen Purvis (ME) Amanda Richards (ME) Grant Richter (ME)](https://reader035.vdocuments.us/reader035/viewer/2022062511/551c2b2f550346a84f8b608f/html5/thumbnails/1.jpg)
Weeding Robot Team 11Sponsor: Jeff Phipps
Advisor: Dr. Clark
Student Members:Ian Nowak (EE)
Coen Purvis (ME) Amanda Richards (ME)
Grant Richter (ME)Jeremy Rybicki (EE/CpE)
Nathan Walden (ME)
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Background Information• Orchard Pond Organic Farm• About the sponsor• About the Farm• Why a weeding robot?
Team 11 Amanda Richards
Slide 2 of 14 Midterm I Presentation
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Scope of the Project
• Constraints• 3/8th of an inch (1 PSI)• Can’t disturb more than 1 inch
• Key components• Locomotion• Navigation• Weeding method
Team 11 Amanda Richards
Slide 3 of 14 Midterm I Presentation
Nutsedge weed
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Robot Design - Locomotion
• Wide variety of methods, necessary to consider the health of the plot• Decision matrix below shows comparison between different methods
Criteria Wheels Tracks LegsComplexity 3 2 1Ground Pressure 2 3 2Stability 2 3 2Navigability 3 3 1Speed 2 2 1Cost 3 2 1
Total 15 15 8
Team 11 Amanda Richards
Slide 4 of 14 Midterm I Presentation
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Robot Design – Weeding Methods
• Focus of the project, will determine overall success of the robot• Specific methods still being discussed
Criteria Find and Pick General AreaComplexity 1 3Reliability 2 3Speed 1 2Effectiveness 3 3Cost 2 2
Total 9 13
Team 11 Nathan Walden
Slide 5 of 14 Midterm I Presentation
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Weeding Method Designs
• General Area Designs
Team 11 Nathan Walden
Slide 6 of 14 Midterm I Presentation
Teeth Design Concept• Aluminum frame• Rubber teeth
Helix Design Concept• Aluminum
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Weeding Method Designs – contd.
• Find and Pick Designs
Team 11 Nathan Walden
Slide 7 of 14 Midterm I Presentation
Root Drill Concept• Drill bit must be stronger
material such as alloyed steel, shaft can be aluminum
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Robot Design – Weed Identification• Essential part of “Find and Pick”• Identifies one weed at a time
Criteria Ultrasonic Whiskers Computer VisionComplexity 2 2 1Reliability 1 1 2Resolution 1 2 2Speed of Response 3 3 3Cost 3 3 3
Total 10 11 11
Team 11 Jeremy Rybicki
Slide 8 of 14 Midterm I Presentation
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Robot Design – Navigation
• Robot must be able to navigate around desirable plants, and remove undesirable weeds• Important to emphasize accuracy and reliability of this method
Criteria GPS Beacons Computer VisionComplexity 2 1 3Reliability 2 3 2Resolution 1 3 2Speed of Response 3 3 3Cost 1 2 3
Total 9 12 13
Team 11 Jeremy Rybicki
Slide 9 of 14 Midterm I Presentation
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Navigation Concepts
• Possible through• Color detection with computer vision• Distance calculations with radio frequencies
Team 11 Jeremy Rybicki
Slide 10 of 14 Midterm I Presentation
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Challenges
• Different types of weeds in plot• Primary challenge is “Find & Pick” vs. “General Area”• Will determine how the rest of the design progresses
• Sponsor wants 24/7 operability and waterproofing• Charging station
• Ground pressure
Team 11 Jeremy Rybicki
Slide 11 of 14 Midterm I Presentation
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Schedule/Gantt Chart
Team 11 Nathan Walden
Slide 12 of 14 Midterm I Presentation
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Future Steps
• Based on the prototype drawings, the team will begin testing the design’s efficiency at weeding• A physical prototype of the frame will be constructed to predict future
complications in fabrication• Ground pressure tests on the plots should be carried out to
determine max weight of robot• Website: www.eng.fsu.edu/~rybicje/Team11/
Team 11 Amanda Richards
Slide 13 of 14 Midterm I Presentation
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References
• http://orchardpondorganics.com/
• http://brandt.co/Portals/0/Blog/lex_spray.jpg
• http://www.ppdl.purdue.edu/PPDL/images/yellownutsedge2.jpg
• http://en.wikipedia.org/wiki/Trilateration
• http://www.americansafetyflag.com/images/agricultural-field-markers.jpg
• http://www.gardenweasel.com/wp-content/uploads/2014/01/Claw-Pro-DSC02850GW_2013.jpg
• http://ecx.images-amazon.com/images/I/71H1SugTkSL._SL1500_.jpg
• http://www.azwallpapers.net/wp-content/uploads/2013/06/Green-Nature-PowerPoint-Templates-Background.jpg
Team 11
Slide 14 of 14 Midterm I Presentation