Cleaning robot, the robot cleaner system and method for controlling such a robot cleaner

Cleaning robot to perform a cleaning operation for a wireless communication with an external device with a drive portion (15) having a plurality of wheels (15a, 15b, 15c, 15d) drives, which are attached to a body of the robot cleaner (10) and a body attached to the dust collecting portion (11) for collecting dust from a bottom surface within an operating region characterized by a plurality of proximity switches (12c1 ~ 12c5) which are arranged on an underside of the body so as to face the bottom surface at a certain distance from each other, wherein the plurality of proximity switches (12c1 ~ 12c5) for determining the presence of a metal member (61 , 63, 65, 67) is in a direction toward the bottom surface back and a control section (18) that calculates a moving distance and a moving web by using an output signal of the proximity switches (12c1 ~ 12c5) during movement and the drive region (15) so that the drive section in question (15) an assigned ...