This paper describes a genetic algorithm planning method for autonomous robots in unstructured environments. It presents the approach and demonstrates its application to a laboratory planetary exploration problem. The method represents activities of the robot with discrete actions, or action modules. The action modules are assembled into an action plan with a Genetic Algorithm (GA). A successful plan allows the robot to complete the task without violating any physical constraints. Plans are developed that explicitly consider constraints such as power, actuator saturation, wheel slip, and vehicle stability. These are verified using analytical models of the robot and environment. The methodology is described in the context of planetary exploration similar to the NASA Mars Pathfinder mission. More aggressive missions are planned where rovers will explore scientifically important areas that are difficult to reach (e.g., ravines, craters, dry riverbeds, and steep cliffs). The proposed approach is designed for such areas.
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Genetic Planning Method and its Application to Planetary Exploration
Shane Farritor
,
Shane Farritor
Department of Mechanical Engineering, University of Nebraska, Lincoln, NE 68588
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Steven Dubowsky
Steven Dubowsky
Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
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Shane Farritor
Department of Mechanical Engineering, University of Nebraska, Lincoln, NE 68588
Steven Dubowsky
Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
Contributed by the Dynamic Systems and Control Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received by the ASME Dynamic Systems and Control Division, March 2001; final revision, . Associate Editor: Y. Hurmuzlu.
J. Dyn. Sys., Meas., Control. Dec 2002, 124(4): 698-701 (4 pages)
Published Online: December 16, 2002
Article history
Received:
March 1, 2001
Online:
December 16, 2002
Citation
Farritor , S., and Dubowsky , S. (December 16, 2002). "Genetic Planning Method and its Application to Planetary Exploration ." ASME. J. Dyn. Sys., Meas., Control. December 2002; 124(4): 698–701. https://doi.org/10.1115/1.1515330
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