Charge induction apparatus of robot cleaner and method thereof

  • US 5,646,494 A
  • Filed: 03/03/1995
  • Issued: 07/08/1997
  • Est. Priority Date: 03/29/1994
  • Status: Expired due to Term
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First Claim
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1. A charging apparatus for a robot cleaner which travels along a studied route for carrying out a cleaning operation, the apparatus comprising:

  • control means for controlling an overall operation of the robot cleaner;

    a memory for storing a plurality of driving programs representing structures of various rooms for which cleaning operations will be performed;

    driving means for moving the robot cleaner in forward and reverse directions and in left and right directions according to control signals from the control means;

    travel distance detecting means for detecting a distance traveled by the driving means;

    travel direction detecting means for detecting a travel direction varied by the driving means;

    obstacle detecting means for detecting whether or not there is an obstacle within a cleaning area and for detecting a distance to the obstacle from the cleaner;

    charge level detecting means for detecting a charge voltage level of a battery changing according to the travel of the cleaner;

    an electric power source supplier for charging the battery to above a predetermined level when the charge voltage level of the battery detected by the charge level detecting means drops below the predetermined level; and

    an electric power source receiving means for electrically connecting the electric power source supplier to the battery so that the power source supplied from the electric power source supplier can be applied to the battery;

    said memory including a first storage area for storing initial information representative of said electric power source supplier, and a second storage area for storing current information representative of a current position of said robot cleaner, said control means controlling movement of said robot cleaner towards said electric power source provider based upon said initial information, said current information, and said charge voltage level detected by said charge level detecting means.

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