Charge induction apparatus of robot cleaner and method thereof

Electricity: motive power systems – Positional servo systems – Vehicular guidance systems with single axis control

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320 2, A47L 1100

Patent

active

056464940

ABSTRACT:
The present invention relates to a charging apparatus for a robot cleaner and a method for charging the robot cleaner by which the robot cleaner can be accurately induced to a power source supplier to receive a battery charge when a battery power source drops below a predetermined level. The apparatus includes a control unit for controlling an overall operation, a memory which stores a driving program including structures for various rooms for which cleaning operations may be performed, and a driving unit for moving the robot cleaner in forward, reverse, left and right directions according to control signals of the control unit. A travel distance detecting unit is provided for detecting a travel distance covered by the driving unit and a travel direction detecting unit is provided for detecting a travel direction varied by the driving unit. An obstacle detecting unit is also provided for detecting whether or not there is an obstacle with a cleaning area and for detecting a distance to the obstacle from the cleaner. A charged level detecting unit detects a charge voltage level of a battery and an electric power source supplier is provided for charging the battery to above a predetermined level when the charge voltage level of the battery detected by the charge level detecting unit drops below the predetermined level. An electric power source receiving unit is also provided 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 charge the battery.

REFERENCES:
patent: 4556940 (1985-12-01), Katoo et al.
patent: 5163001 (1992-11-01), Luke, Jr.
patent: 5279672 (1994-01-01), Betker et al.
patent: 5321614 (1994-06-01), Ashworth
patent: 5446356 (1995-08-01), Kim

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