A robot cleaner comprises a suction unit installed within a cleaner body,
for sucking dirt on a floor; a driving unit for moving the cleaner body;
a detecting unit mounted at the cleaner body, for detecting a height
between a bottom of the cleaner body and a floor; and a control unit
controlling the suction unit in response to signal from the detecting
unit, for adjusting a suction force of the suction unit. Accordingly,
cleaning efficiency of the robot cleaner can be improved by controlling
the suction force for sucking dirt in accordance with unevenness of the
floor.
