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Sequential Composition of Dynamically Dexterous Robot BehaviorsTexas Robotics and Automation Center, Metrica, Inc., Houston, Texas 77058, USAburridge{at}mickey.jsc.nasa.gov
The Robotics Institute, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213-3891, USAarizzi+{at}ri.cmu.edu
Artificial Intelligence Laboratory and Controls Laboratory, Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109-2110, USAkod{at}eecs.umich.edu We report on our efforts to develop a sequential robot controller-composition technique in the context of dexterous "batting" maneuvers. A robot with a flat paddle is required to strike repeatedly at a thrown ball until the ball is brought to rest on the paddle at a specified location. The robots reachable workspace is blocked by an obstacle that disconnects the free space formed when the ball and paddle remain in contact, forcing the machine to "let go" for a time to bring the ball to the desired state. The controller compositions we create guarantee that a ball introduced in the "safe workspace" remains there and is ultimately brought to the goal. We report on experimental results from an implementation of these formal composition methods, and present descriptive statistics characterizing the experiments.
Key Words: hybrid control controller composition dynamical dexterity switching control reactive scheduling backchaining obstacle avoidance
The International Journal of Robotics Research, Vol. 18, No. 6,
534-555 (1999) This article has been cited by other articles:
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