Abstract: An autonomous cleaner has an enhanced structure capable of conducting an efficient cleaning task according to the material quality or the condition of the floor surface of a cleaning space. The autonomous cleaner includes a body, a driving wheel to drive the body, a driving wheel assembly having the driving wheel, and a control unit. The control unit detects a displacement of the driving wheel corresponding to a reference position by sensing a sensor target, determines material quality or condition of a floor surface according to the displacement of the driving wheel, and controls the driving of the autonomous cleaner according to the determined material quality or the condition of the floor surface.

Abstract: A robot cleaner includes a body; a driving unit; at least one sensor configured to detect an obstacle; a cleaning unit, the cleaning unit including a brush unit and a fan unit; a dust box to store dust inside of the dust box, the dust box being detachably mounted to the body; and a dust sensing unit including a light emitting unit to transmit light and a light receiving sensor to sense the light transmitted by the light emitting unit, the light emitting unit and the light receiving sensor being fixed on the body and outside of the dust box, and the light emitting unit being configured to transmit light through the inside of the dust box. The driving unit, the at least one sensor, the cleaning unit, the dust box, and the dust sensing unit are positioned on or in the body of the robot cleaner.

Abstract: Disclosed are a robot cleaner and a method for controlling the same, capable of controlling a travelling or cleaning pattern of a robot cleaner in accordance with extension and retraction operations of an auxiliary cleaning tool to perform an efficient cleaning operation. The robot cleaner includes a plurality of auxiliary cleaning units mounted to a bottom of the robot cleaner such that the auxiliary cleaning units are extendable and retractable, and a control unit to extend the auxiliary cleaning units while travelling in a wall tracing manner along the periphery of the cleaning region and/or when an obstacle is sensed, and to retract the auxiliary cleaning units while the robot cleaner travels in an inner portion of the cleaning region when traveling of the periphery of the cleaning region is finished.

Abstract: A blade assembly of an autonomous cleaning device. The blade assembly includes a blade having a first part fixed to the main body and a second part extended from the first part toward a floor and a support member having at least a portion disposed adjacent to the second part of the blade to restrict movement of the second part of the blade to within a predetermined range.

Abstract: A robot cleaner which does not stop to change a traveling direction thereof, and a control method thereof includes setting a territory about which cleaning will be performed based on position data acquired during traveling about a cleaning area, predetermining a cleaning path to clean the territory about which cleaning will be performed, and if the cleaning path includes a zigzag traveling path, changing the traveling direction of the robot cleaner by executing curved traveling of the robot cleaner during traveling along the zigzag traveling path, thus decreasing the time required to clean an area during a change of the traveling direction of the robot cleaner.

Abstract: A robot cleaner includes a body; a dust box to store dust; and a dust sensing unit to detect dust stored in the dust box, the dust sensing unit including a light emitting unit to transmit a signal to an interior of the dust box and a light receiving sensor to sense the signal transmitted by the light emitting unit. The light emitting unit and the light receiving sensor are positioned between the dust box and the body, and face each other at the same height.

Abstract: Disclosed are a robot cleaner and a method for controlling the same, capable of controlling a travelling or cleaning pattern of a robot cleaner in accordance with extension and retraction operations of an auxiliary cleaning tool to perform an efficient cleaning operation. The robot cleaner includes a plurality of auxiliary cleaning units mounted to a bottom of the robot cleaner such that the auxiliary cleaning units are extendable and retractable, an obstacle sensor to sense an obstacle in a cleaning region of the robot cleaner, and a control unit to extend the auxiliary cleaning units while travelling in a wall tracing manner along the periphery of the cleaning region, and to retract the auxiliary cleaning units while the robot cleaner travels in an inner portion of the cleaning region when traveling of the periphery of the cleaning region is finished.

Abstract: A robot cleaner which does not stop to change a traveling direction thereof, and a control method thereof includes setting a territory about which cleaning will be performed based on position data acquired during traveling about a cleaning area, predetermining a cleaning path to clean the territory about which cleaning will be performed, and if the cleaning path includes a zigzag traveling path, changing the traveling direction of the robot cleaner by executing curved traveling of the robot cleaner during traveling along the zigzag traveling path, thus decreasing the time required to clean an area during a change of the traveling direction of the robot cleaner.

Abstract: The robot cleaner includes a main body configured to remove dust from a floor while traveling on the floor, the main body having a lateral rim defining the external appearance of a lateral surface of the robot cleaner, and at least one side brush assembly mounted to the main body to clean the corner of the floor. The side brush assembly includes a side arm pivotably coupled to the main body, the side arm moving between a first position where the side arm is inserted into the main body and a second position where the side arm protrudes outward from the lateral rim of the main body, a brush unit provided at the side arm to sweep the floor, and a rim cover coupled to the side arm to form a part of the lateral rim of the main body when the side arm is inserted into the main body.

Abstract: A robot cleaner system is described including a docking station to form a docking area within a predetermined angle range of a front side thereof, to form docking guide areas which do not overlap each other on the left and right sides of the docking area, and to transmit a docking guide signal such that the docking guide areas are distinguished as a first docking guide area and a second docking guide area according to an arrival distance of the docking guide signal. The robot cleaner system also includes a robot cleaner to move to the docking area along a boundary between the first docking guide area and the second docking guide area when the docking guide signal is sensed and to move along the docking area so as to perform docking when reaching the docking area.

Abstract: A robot cleaner system is described including a docking station to form a docking area within a predetermined angle range of a front side thereof, to form docking guide areas which do not overlap each other on the left and right sides of the docking area, and to transmit a docking guide signal such that the docking guide areas are distinguished as a first docking guide area and a second docking guide area according to an arrival distance of the docking guide signal. The robot cleaner system also includes a robot cleaner to move to the docking area along a boundary between the first docking guide area and the second docking guide area when the docking guide signal is sensed and to move along the docking area so as to perform docking when reaching the docking area.

Abstract: A robot cleaner provided with a shutter to open or close an inlet of a dust box when the dust box is separated from a body of the robot cleaner. Another robot cleaner, which docks with an automatic exhaust station, is also disclosed, together with the automatic exhaust station. The latter robot cleaner includes a shutter to be automatically opened by air discharged from the automatic exhaust station in a docked state of the robot cleaner to exhaust dust from the dust box, in order to allow even heavy dust to be easily exhausted.

Abstract: Disclosed herein are a robot cleaner having an improved travel pattern and a control method thereof. The robot cleaner performs cleaning using zigzag travel as a basic cleaning traveling manner, and then performs cleaning using random travel as a finishing cleaning traveling manner so as to clean areas skipped during the zigzag travel. The robot cleaner performs the zigzag travel while maintaining a designated interval with a travel route proceeding to a wall regardless of a direction proceeding to the wall, and employs an improved zigzag travel method to maintain a zigzag travel pattern, if the robot cleaner senses an obstacle during the zigzag travel.

Abstract: The robot cleaner includes a main body configured to remove dust from a floor while traveling on the floor, the main body having a lateral rim defining the external appearance of a lateral surface of the robot cleaner, and at least one side brush assembly mounted to the main body to clean the corner of the floor. The side brush assembly includes a side arm pivotably coupled to the main body, the side arm moving between a first position where the side arm is inserted into the main body and a second position where the side arm protrudes outward from the lateral rim of the main body, a brush unit provided at the side arm to sweep the floor, and a rim cover coupled to the side arm to form a part of the lateral rim of the main body when the side arm is inserted into the main body.

Abstract: A robot cleaner provided with a shutter to open or close an inlet of a dust box when the dust box is separated from a body of the robot cleaner. Another robot cleaner, which docks with an automatic exhaust station, is also disclosed, together with the automatic exhaust station. The latter robot cleaner includes a shutter to be automatically opened by air discharged from the automatic exhaust station in a docked state of the robot cleaner to exhaust dust from the dust box, in order to allow even heavy dust to be easily exhausted.

Abstract: Disclosed herein are a robot cleaner having an improved travel pattern and a control method thereof. The robot cleaner performs cleaning using zigzag travel as a basic cleaning traveling manner, and then performs cleaning using random travel as a finishing cleaning traveling manner so as to clean areas skipped during the zigzag travel. The robot cleaner performs the zigzag travel while maintaining a designated interval with a travel route proceeding to a wall regardless of a direction proceeding to the wall, and employs an improved zigzag travel method to maintain a zigzag travel pattern, if the robot cleaner senses an obstacle during the zigzag travel.

Abstract: In a cleaning system, dust stored in a dust box is suspended in air introduced into the dust box through a first opening formed through a robot cleaner, and is then discharged to a second opening formed through a maintenance station through the first opening of the robot cleaner.

Abstract: A vacuum cleaner includes a cleaner body including a suction source configured to generate a suction force, a suction inlet body configured to inhale dust on a surface to be cleaned using the suction force of the suction source, a dust bucket detachably installed on the cleaner body, a cyclonic unit formed inside the dust bucket and configured to centrifuge the dust from air flowed in through the suction inlet body, and a paper-shredder installed on a top of the dust bucket and configured to communicate with the top of the dust bucket so that shredded pieces of paper are dropped inside a dust collecting space of the dust bucket.

Abstract: An upright type cleaner in which a mounting structure of a suction device is improved is described. The cleaner includes a base provided with a suction port, a main body connected to the base, and a suction device including a flexible hose extended from the base or the main body, a pipe connected to the flexible hose, and a tool connected to the pipe. The suction device may be fixedly attached to the main body when the tool is mounted on the suction device.

Abstract: A moving robot includes a sensing system. The moving robot includes light sources generating light, an optical guide to receive, diffuse, and emit the light generated from the light source, and light receiving sensors to receive the light emitted from the optical guide and then reflected by the object. Light irradiated from the light sources is diffused and emitted to a wide region through the optical guide, thereby allowing light to be emitted to the wide region with a small number of the light sources.