Cleaning robot guidance system including a cleaning robot and a docking station, and method of controlling the cleaning robot

摘要

A robot cleaner system is described comprising a docking station having a first transmission unit to transmit a first docking guide signal comprising at least a first signal pulse and a second signal pulse having an amplitude greater than an amplitude of the first signal pulse, and a second transmission unit to transmit a second docking guide signal comprising at least a first signal pulse and a second signal pulse each having an amplitude greater than the amplitude of the first signal pulse. The robot cleaner system further comprises a robot cleaner including a plurality of reception units to sense the signals transmitted by the docking station and a control unit to control a driving unit to move the robot cleaner to the docking station based on the first docking guide signal and the second docking guide signal sensed by the reception unit, the robot cleaner distinguishing the first docking guide signal sensed in a first short-distance docking guide area from the first docking guide signal sensed by the robot cleaner in a first long-distance guide area, and the robot cleaner distinguishing the second docking guide signal sensed in a second short-distance docking guide area from the second docking guide signal sensed by the robot cleaner in a second long-distance guide area.