Computer Science – Robotics
Scientific paper
Jan 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jaere...8...16l&link_type=abstract
Journal of Aerospace Engineering (ISSN 0893-1321), vol. 8, no. 1, p. 16-24
Computer Science
Robotics
Artificial Intelligence, Controllers, Lunar Excavation Equipment, Lunar Mining, Mining, Remote Sensing, Robot Control, Robot Dynamics, Robotics, Tunneling (Excavation), Computer Vision, Fuzzy Systems, Hierarchies, Lunar Exploration, Mineral Exploration, Space Missions
Scientific paper
A major benefit of utilizing local planetary resources is that it reduces the need and cost of lifting materials from the Earth's surface into Earth orbit. The location of the moon makes it an ideal site for harvesting the materials needed to assist space activities. Here, lunar excavation will take place in the dynamic unstructured lunar environment, in which conditions are highly variable and unpredictable. Autonomous mining (excavation) machines are necessary to remove human operators from this hazardous environment. This machine must use a control system structure that can identify, plan, sense, and control real-time dynamic machine movements in the lunar environment. The solution is a vision-based hierarchical control structure. However, excavation tasks require force/torque sensor feedback to control the excavation tool after it has penetrated the surface. A fuzzy logic controller (FLC) is used to interpret the forces and torques gathered from a bucket mounted force/torque sensor during excavation. Experimental results from several excavation tests using the FLC are presented here. These results represent the first step toward an integrated sensing and control system for a lunar mining system.
Lever Paul J. A.
Wang Fei-Yue
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