Three%Million%and%Coun/ng% How%Real%Robots%are%Revolu/onizing% Real%Nurseries% 1%
Topics% • Applica/on%area% • Implementa/on% • Principles%behind%task%choice% • Future%concepts% 2%
Nursery%&%Greenhouse%Industry% 3%
Wholesale% Growers% 4%
Ground%Truth% 5%
Manual%Spacing% 6%
Constraints% • Outdoor%environment%–%sun,%rain,%dust,%mud% • Farm%equipment%–%must%be%tough/reliable% • Users%have%liSle%educa/on%–%must%be%intui/ve% • Can’t%be%more%trouble%than%it’s%worth% 7%
Implementa/on% • %%Small,%autonomous%mobile%robots% • %%Differen/al%drive%mobility%system% • %%One%DoF%manipulator%plus%gripper% • %%RobotXiden/fiable%bedXedge%reference%mark% • %%Laser%ranger%finds%pots%and%obstacles% % A%–%SICK%laser%ranger% B%–%BedXedge%sensors% C%–%Gripper% D%–%EStop%flag% E%–%Electronics%box% F%–%Balancing%roller% 8%
Spacing%Strategy% A%–%Iden/fy%pot%to%pickup% B%–%Find%boundary%marker% C%–%Select%des/na/on%for%pot% 9%
Boundary%System% • Special%rope%–%retroreflec/ve% • Sunlight%challenge% • Works%as%designed%but%small%FoV% • Working%to%replace%with%a%camera% 10%
Laser%Ranger% • Must%iden/fy%pot%to%pick%up% • Must%recognize%paSern%of%pots%for%putdown% 11%
Teaming% • Robots%can%operate%in% teams% • No%interXrobot% communica/on% • Laser%ranger%detects% retroreflec/ve%tape%on% teammates%by%signal% strength.% • Robots%pause%when% teammate%ahead% 12%
Simple%User%Interface% Controls%select:% %%%%Task%–%Spacing,%Consolida/on,%Collec/on% %%%%PaSern%–%Hex%or%Rectangular% %%%%PlantXtoXplant%spacing%distance% %%%%Bed%width% %%%%Boundary%rela/ve%to%robot%(arrows)% 13%
Where%Have%All%the%Robots%Gone?% 14%
Checklist%for%Robo/c%Survival% The$Proposed$Robot:$ ! %%Does%something%lots%of%people%want%done% ! %%Can%be%built%using%exis/ng%technology% ! %%Is%cost%compe//ve%with%current%solu/ons% Market% Technology% Cost% 15%
Market:%Large%and%Neglected% $17$B % $2.5$B $ 16%
Market: Workforce is not Sustainable Dec 2012 Salinas Valley, California Hit by Farm Worker Shortage Plaguing Rest of U.S. Oct 2011 Labor Worries Rise As Planting Season Nears In Alabama Jan 2013 We’re running out of farm workers. Immigration reform won’t help Aug 2012 California Farmers Leaving Crops Unpicked Amid Labor Shortage 17%
Technology:%No%Research%Grants%Needed% • One%degree%of%freedom%manipulator% • PhotodiodeXbased%boundary%sensor% • OffXtheXshelf%range%sensor% • OffXtheXshelf%baSeries%&%charger% • No%interXrobot%communica/on% 18%
Cost:%Minimize% • Small%size% • No%RTK%GPS%%( ± 2%cm%accuracy)% • Simple%manipulator%and%gripper% • Simple%UI% ⇒ %minimal%worker%training% • Nothing%superfluous,%every%subXsystem%earns%it%keep% GPS% 6%dof%arm% 19%
The%Downside%of%Big% Step$1:$ Build%a%robot%able%to%cause%tremendous%damage% Step$2:$ Keep%adding%sensors,%wri/ng%code,%and%doing%tests%un/l% you’re%certain%it%never%will% 20%
Future%Concepts% Crop%Scout% Maintenance%Sta/on% 21%
Technology/Market%Dilemma% • Applica/on%favorable%for%robo/c%development% • Market%size%doesn’t%jus/fy%investment% • E.g.%Asparagus%harves/ng%robot% – No%obscuring%foliage% – Maturity%=%height% – Not%squishy% – Hard%to%find%labor% – But,%US%Market%only%$90M% 22%
Thank%you% joe.jones@HarvestAI.com% 23%
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