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Settlement Site Selection and Exploration Through Hierarchical Roving. Gregory Konesky SGK Nanostructures, Inc. Rutgers Symposium on Lunar Settlements Rutgers University 3-8 June 2007. Man Or Machine?. Man Or Machine? YES!. NASA JSC. Machines Scout Ahead Man Soon Follows. NASA JSC.
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Settlement Site Selection and Exploration ThroughHierarchical Roving Gregory Konesky SGK Nanostructures, Inc. Rutgers Symposium on Lunar Settlements Rutgers University 3-8 June 2007
Man Or Machine?
Man Or Machine? YES!
NASA JSC Machines Scout Ahead Man Soon Follows
NASA JSC Man/Machine Synergism
Teleoperation from the Moon or from the Earth: Lunokhod 1 (Arrival 11/17/1970) Traveled 10.5 km Lunokhod 2 (Arrival 1/15/1973) Traveled 37 km Approx. 1.3 second one-way delay
On-site Rover Teleoperation for Settlement Site Selection and Exploration Provide “Ground Truth”
Given cost of $1,000,000 / day to support a Man on the Moon Economic Leveraging effect of Teleoperated Rovers
NASA JPL Rover Size Affects Capability
Mars Exploration Rovers (MER) Sojourner Alpha Proton X-Ray Spectrometer (APXS) Deployment Mechanism Imaging
Spirit/Opportunity APXS Rock Abrasion Tool Microscopic Imager Deployment Mechanism Stereoscopic Panoramic Cameras Navigation Cameras Hazard Avoidance Cameras Miniature Thermal Emission Spectrometer Mossbauer Spectrometer Magnetic Particle Detection
Sojourner (1997) Traveled a few hundred meters Lasted a few months Contact Lost Spirit/Opportunity (2004) Traveled tens of kilometers Continue to operate today
By chance, Sojourner landed in a strewn rock field. It easily navigated around/between them. Had Spirit/Opportunity landed there, they might have had considerable navigation difficulty.
Small size can be an enabling asset When proceeding into unknown terrain, it would be ideal to have both benefits at your disposal → Hierarchical Roving
Large/Small Rover Tradeoffs Payload Capacity and Distribution - Small Rovers spatially distribute payloads - Simultaneously sense a much larger environment - Redundancy - Navigation Agility - Levels of Hierarchy
Small Rover Specialization Imaging Sample Collection and Processing Analytical Manipulators Collective Interaction of Multiple Small Rovers on a Common Task
Small Rover Specialization - continued Imaging Applications Navigation Terrain Mapping and Understanding Hazard Identification Locating Areas of Interest for Visit by Other Rovers Standoff Self-Imaging Self-Rescue
Carrier Rover Characteristics Deploy/Recover/Transport Small Rover Fleet Communications Relay Link between Command Center(s) and Small Rover Fleet Recharge Small Rover Batteries
Design Example Characteristics Dimensions Vehicle: 52” Long, 34” Wide, 37” High Carrier Bay: 31” Long, 24” Wide, 18” High Weight Carrier Vehicle: 152 Pounds Available Payload: 48 Pounds Typical Small Rover: 5-10 Pounds Power 66 Watts Solar Panels 56 Amp-Hr Lead Acid Battery Reserve
Levels of Earth-bound Teleoperation Users Vehicle Drivers (10 channels) Active Viewers (500 channels) Passive Viewers (unlimited)