Autonomous robot auto-docking and energy management systems and methods

  • US 7,332,890 B2
  • Filed: 01/21/2004
  • Issued: 02/19/2008
  • Est. Priority Date: 01/21/2004
  • Status: Active Grant
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First Claim
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1. A method for energy management in a robotic device, the method comprising the steps of:

  • providing a robotic device comprising at least one energy storage unit and a signal detector;

    providing a base station for mating with the robotic device, the base station emitting a homing signal;

    determining whether a quantity of energy stored in the energy storage unit is below one or both of a predetermined high energy level and a predetermined low energy level that is lower than predetermined high energy level;

    performing, by the robotic device, a predetermined task based at least in part on whether the quantity of energy stored is below the predetermined high energy level or the predetermined low energy level;

    the predetermined task comprising;

    cleaning without seeking the homing signal when the quantity of energy is not below the high energy level;

    cleaning while seeking the homing signal when the quantity of energy is below the high energy level;

    seeking the homing signal without cleaning when the quantity of energy is below the low energy level; and

    following the homing signal to return to the recharging base station when detecting the homing signal during seeking the homing signal.

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