Moving robot and control method thereof
AssigneeLG Electronics Inc.
InventorsSihyuk Yi, Jaehwan Ko, Hyukdo Kweon
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Abstract
A moving robot comprises a floor sensing unit comprised of a plurality of transmitters, for which different sensing distances are set, and a single receiver, and, since a floor state is sensed using a plurality of sensors, it is possible to sense a normal floor states, an obstacle or a cliff present on a floor, and a long-distance state at a distance farther than the normal floor state, thereby preventing wrong sensing of a cliff due to an obstacle, and, since whether to keep traveling is set depending on the obstacle and a traveling speed is controlled, even an area previously not allowed to enter due to the wrong sensing may be cleaned and therefore a cleaning area may be increased.
Claims33
A moving robot comprising:
- a movable main body;
- a travel drive unit configured to move the main body;
- a floor sensing unit installed at a bottom of the main body, the floor sensing unit comprising:
- a plurality of transmitters configured to transmit signals in different directions with respect to a floor;
- a single receiver configured to receive any one of the signals transmitted from the plurality of transmitters;
- and
- a controller configured to determine a distance from a bottom surface of the main body to the floor based on whether the receiver has received the signal transmitted from any one transmitter among the plurality of transmitters, determine a travel path based on a state of the floor corresponding to the determined distance, and control the travel drive unit based on the travel path.
A control method of a moving robot, comprising:
- transmitting signals in different directions with respect to the floor using a plurality of transmitters during traveling along a floor,
- when any one of the signals transmitted from the plurality of transmitters is sensed by a receiver, determining a state of the floor based on which transmitter among the plurality of transmitters transmitted the signal received by the receiver;
- and
- determining a travel path based on the state of the floor.
Dependencies are inferred from the claim text.