1 / 1

Autonomous Rovers for Polar Science Campaigns

270 W electrical power @ 20 ° sun elev. 35% is reflected power. Top 18% (direct). Back 7% (reflected only). Sides 19% (reflected only). Front 56% (direct + reflected). Autonomous Rovers for Polar Science Campaigns. AUG12 C13E-0683. 1. Why Develop Polar Rovers?

garson
Télécharger la présentation

Autonomous Rovers for Polar Science Campaigns

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 270 W electrical power @ 20° sun elev. 35% is reflected power Top 18% (direct) Back 7% (reflected only) Sides 19% (reflected only) Front 56% (direct + reflected) Autonomous Rovers for Polar Science Campaigns AUG12 C13E-0683 • 1. Why Develop Polar Rovers? • Reduce logistics costs • Less infrastructure • Broader safety & weather windows • Expand science opportunities • Increase spatial & temporal coverage • Maximize repetitive, routine measurements • Rovers as sensors • Navigation sensors & drivetrains engage environment • Measure snow strength, roughness & topography • 2. Two Platforms • Yeti: • 4WD, 81 kg, battery powered (3 – 4 hr), GPS waypoint following, towed instrument sled (GPR, etc.) • Deployed South Pole traverse route (2010), South Pole/Old Pole (2011), Greenland traverse route (2012) • Well-defined survey grids & repeat detection improves GPR hazard mapping • Cool Robot: • 4DW, 60 kg, solar powered (continuous summer operation), GPS waypoint following, towed instrument sled (air & snow sampling, GPR, etc.) • Deployed Summit Station (2005) to confirm mobility & power budget • 3. Seeking Partners • To propose rovers for unique science campaigns • To expand scope of existing field projects • Payloads & rover operations matched to science needs • Contact: Yeti Cool Robot • Next for Yeti • Mt. Erebus 2012 (with NM Tech) • Gridded GPR surveys to map ice caves within Mt. Erebus glaciers • McMurdo Shear Zone 2013 – 15 (with U Maine) • Gridded GPR surveys to map shear-crevasse field between McMurdo & Ross Ice Shelves • Investigate shear zone as boundary condition on Ross Ice Shelf • Operational Support 2013 (OPP) • GPR surveys to detect crevasses along South Pole and Greenland traverses routes • Next for Cool Robot • Summit Station 2013 (with UNH) • Demonstrate long-endurance science campaign (100 – 200 km, 2 – 5 days) • Measure emissions footprint of Summit • Measure surface-snow characteristics & roughness (satellite ground truth) • More Information • http://engineering.dartmouth.edu/crobots/ • Lever, J.H., A.J. Delaney, L.E Ray, E. Trautmann, L.A. Barna and A.M Burzynski (in press) Autonomous GPR surveys using Polar rover Yeti. Journal of Field Robotics, accepted Oct 2012 • Ray, L.E., J.H. Lever, A.D. Streeter and A.D. Price (2007) Design and power management of a solar-powered “Cool Robot” for polar instrument networks. Journal of Field Robotics,24(7), 581 – 599. Acknowledgements:Cool Robot– NSF grants OPP-0343328 & OPP-0806157, NIST grant 60NANB4D1144 and Army AT42 Mobility of Lightweight Robotic Vehicles. Yeti – NSF-OPP Antarctic Infrastructure and Logistics and Arctic Research Support and Logistics, NASA-JPL grant RSA 1310519

More Related