Learning to Avoid Collisions

نویسندگان

  • Elizabeth Sklar
  • Simon Parsons
  • Susan L. Epstein
  • Arif Tuna Ozgelen
  • Juan Pablo Munoz
  • Farah Abbasi
  • Eric Schneider
  • Michael Costantino
چکیده

Members of a multi-robot team, operating within close quarters, need to avoid crashing into each other. Simple collision avoidance methods can be used to prevent such collisions, typically by computing the distance to other robots and stopping, perhaps moving away, when this distance falls below a fixed threshold. While a simple method like this may skirt disaster, the results may be inefficient in terms of the amount of time that robots are halted, waiting for others to pass by, or in terms of the path traversed, moving around other robots. The experiments reported here describe a method in which a human operator, through a graphical user interface, watches robots performing an exploration task and can manually interrupt robots’ movements before they crash into each other, and then resume their movements when their paths are clear. Experiment logs record the robots’ state when they are halted and resumed, and a behavior pattern for collision avoidance is learned, by classifying the states in which “halt” and “resume” commands are issued. Preliminary work is reported here.

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تاریخ انتشار 2012