Abstract: The WiFi apparatus for wireless Internet includes: a signal inputting unit including a plurality of input ports for inputting a plurality of mobile communication signals, respectively, and an input port for inputting an Ethernet signal; a signal converting unit for converting the inputted Ethernet signal into a plurality of WiFi signals; a signal coupling unit for coupling the plurality of inputted mobile communication signals to the plurality of WiFi signals converted by the signal converting unit, respectively; a signal outputting unit for outputting a plurality of coupled signals coupled by the signal coupling unit through a plurality of output ports, respectively; and a coupler for allowing each of signals outputted from the signal outputting unit to be split with different phase differences and to be outputted.

Abstract: Disclosed herein are a mobile robot system to restrict a traveling region of a robot and to guide the robot to another region, and a method of controlling the same. Only when a remote controller reception module of a beacon senses a signal transmitted from a mobile robot, the sensed result is reported to the mobile robot in the form of a response signal. In addition, the Field-of-View (FOV) of the remote control reception module is restricted by a directivity receiver. Only when the signal transmitted from the mobile robot is sensed within the restricted FOV, the sensed result is reported to the mobile robot.

Abstract: Disclosed herein is a control method of a robot cleaner in which a robot cleaner is moved at an arbitrary starting angle along a rotation trajectory having an arbitrary rotational center and rotation radius during obstacle-following traveling, whereby an obstacle-following traveling time is reduced and consequently, a movement time of the robot cleaner is reduced.

Abstract: A cleaning apparatus including a main body, a dust collection unit detachably installed on the main body and provided with a plurality of inlets, through which foreign substances are introduced into the dust collection unit, and a connection hole, to which an external instrument is connected, a shutter to open and close one inlet, and a cap to open and close the connection hole. The shutter opens and closes the inlet in cooperation with one of whether or not the dust collection unit is attached to or detached from the main body and whether or not the connection hole is opened or closed.

Abstract: A robot cleaner to perform a cleaning process by changing a traveling pattern according to a cleaning start position and a method for controlling the same are disclosed. The robot cleaner recognizes a current position of the robot cleaner upon receiving the automatic cleaning command. If the automatic cleaning process starts from the charger, the robot cleaner performs the automatic cleaning process using a conventional cleaning method. Otherwise, if the automatic cleaning process starts from the outside of the charger, the robot cleaner changes a traveling pattern, performs the spot cleaning process and then selectively performs the automatic cleaning process.

Abstract: A robot cleaner having a configuration capable of improving an ability to collect dust, etc. is disclosed. The robot cleaner includes a suction hole to suction dust, a dust collector to receive the dust suctioned through the suction hole, and a rotating brush provided at a side of the suction hole. The robot cleaner is configured to sweep up and collect the dust into the dust collector by a drive force of the rotating brush.

Abstract: A robot cleaner to perform a cleaning process by changing a traveling pattern according to a cleaning start position and a method for controlling the same are disclosed. The robot cleaner recognizes a current position of the robot cleaner upon receiving the automatic cleaning command. If the automatic cleaning process starts from the charger, the robot cleaner performs the automatic cleaning process using a conventional cleaning method. Otherwise, if the automatic cleaning process starts from the outside of the charger, the robot cleaner changes a traveling pattern, performs the spot cleaning process and then selectively performs the automatic cleaning process.

Abstract: A robot cleaner that travels straight through alignment of drive wheels to move the robot cleaner and a method of controlling travel of the same. Information related to a movement angle of the robot cleaner is detected from angle information of a caster wheel rotating depending upon a state of a floor, such as a carpet in a state in which texture of the carpet occurs in one direction, and, when the movement angle of the robot cleaner deviates due to slippages of the drive wheels, rates of rotation of the drive wheels are adjusted to correct the slippages of the drive wheels such that the robot cleaner easily travels straight.

Abstract: Disclosed herein is an autonomous cleaning machine with a brush cleaning unit to clean a brush unit. The autonomous cleaning machine includes a main body, the brush unit rotatably provided on the main body, first brush cleaning members contacting the brush unit to move foreign substances wound on the brush unit in a lengthwise direction of the brush unit, and second brush cleaning members contacting the brush unit to remove the foreign substances wound on the brush unit from the brush unit.

Abstract: A robot cleaner including a suction hole to suction dust, a blower to generate a suction force to suction the dust, a dust collector to receive the dust suctioned by said suction force through the suction hole, and a rotating brush to sweep up and collect the dust into the dust collector through the suction hole by a drive force of the rotating brush. The dust collector includes a backflow preventing member movable between an open position and a closed position. The backflow preventing member is pivotably rotatable in an air suction direction by the suction force of the blower to the open position and is adapted to return to the closed position to prevent the dust in the dust collector from being discharged through the suction hole upon stoppage of the blower.

Abstract: A cleaning apparatus including a main body, a dust collection unit detachably installed on the main body and provided with a plurality of inlets, through which foreign substances are introduced into the dust collection unit, and a connection hole, to which an external instrument is connected, a shutter to open and close one inlet, and a cap to open and close the connection hole. The shutter opens and closes the inlet in cooperation with one of whether or not the dust collection unit is attached to or detached from the main body and whether or not the connection hole is opened or closed.

Abstract: A robot cleaner that cleans a cleaning region while traveling the cleaning region and a method to control the same are provided. The robot cleaner can uniformly clean a cleaning region based on a wall-following technique which allows the robot cleaner to travel along the outline of the cleaning region. The method selects, as a reference wall, a wall at a left or right side of the robot cleaner at a start position of the robot cleaner based on a left or right-based travel algorithm, which allows the robot cleaner to travel along a left or right wall, and controls the robot cleaner to travel the cleaning region in a zigzag travel pattern in which the robot cleaner moves a predetermined distance in a direction perpendicular to the reference wall at specific intervals along the selected reference wall while following the selected reference wall.

Abstract: Disclosed herein is an autonomous cleaning machine with a brush cleaning unit to clean a brush unit. The autonomous cleaning machine includes a main body, the brush unit rotatably provided on the main body, first brush cleaning members contacting the brush unit to move foreign substances wound on the brush unit in a lengthwise direction of the brush unit, and second brush cleaning members contacting the brush unit to remove the foreign substances wound on the brush unit from the brush unit.

Abstract: A robot cleaner including a suction hole to suction dust, a blower to generate a suction force to suction the dust, a dust collector to receive the dust suctioned by said suction force through the suction hole, and a rotating brush to sweep up and collect the dust into the dust collector through the suction hole by a drive force of the rotating brush. The dust collector includes a backflow preventing member movable between an open position and a closed position. The backflow preventing member is pivotably rotatable in an air suction direction by the suction force of the blower to the open position and is adapted to return to the closed position to prevent the dust in the dust collector from being discharged through the suction hole upon stoppage of the blower.

Abstract: A cleaning apparatus including a main body, a dust collection unit detachably installed on the main body and provided with a plurality of inlets, through which foreign substances are introduced into the dust collection unit, and a connection hole, to which an external instrument is connected, a shutter to open and close one inlet, and a cap to open and close the connection hole. The shutter opens and closes the inlet in cooperation with one of whether or not the dust collection unit is attached to or detached from the main body and whether or not the connection hole is opened or closed.

Abstract: The WiFi apparatus for wireless Internet includes: a signal inputting unit including a plurality of input ports for inputting a plurality of mobile communication signals, respectively, and an input port for inputting an Ethernet signal; a signal converting unit for converting the inputted Ethernet signal into a plurality of WiFi signals; a signal coupling unit for coupling the plurality of inputted mobile communication signals to the plurality of WiFi signals converted by the signal converting unit, respectively; a signal outputting unit for outputting a plurality of coupled signals coupled by the signal coupling unit through a plurality of output ports, respectively; and a coupler for allowing each of signals outputted from the signal outputting unit to be split with different phase differences and to be outputted.

Abstract: A dual wireless fidelity (WiFi) apparatus for wireless Internet that may perform installation, maintenance, management, or the like of a WiFi access point (AP) by using a mobile communication relay system more efficiently, and a wireless Internet system using the dual WiFi apparatus for wireless Internet. The dual WiFi apparatus includes: a signal inputting unit comprising a plurality of input ports for inputting a plurality of mobile communication signals, respectively, and an input port for inputting an Ethernet signal; a signal converting unit for converting the inputted Ethernet signal into a plurality of WiFi signals; a signal coupling unit for coupling the plurality of inputted mobile communication signals to the plurality of WiFi signals converted by the signal converting unit, respectively; and a signal outputting unit for outputting a plurality of coupled signals coupled by the signal coupling unit through a plurality of output ports, respectively.

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 that is capable of preventing dust collected in a dust tank from flowing backward outside when a situation in which the dust may be discharged outside occurs includes a cleaner body, a dust tank mounted in the cleaner body to collect dust, and a backward-flow preventing device to prevent dust from flowing backward outside through a suction port of the dust tank. The backward-flow preventing device includes a shutter unit to open and close the suction port and a stopper unit to drive the shutter unit.

Abstract: Disclosed is a cable tie used for the purpose of tying and arranging cables, and it is formed of a belt part 310 which is stored in the shape of a reel 370 at usual time and is unwound for tying cables when needed, and engaging head parts 320 and 420 fixing and preventing the belt part, which has tied the cables, from loosening. The present invention makes it possible to conveniently arrange the cables without using a special tool, and over consumption of the belt part can be prevented as compared to a conventional cable tie 100 in which the leftovers of the belt part 130 after it is cut are discarded. In case of the conventional cable tie 100, the cable tie 100 should be used depending on the thickness of the cables to be arranged; however in the present invention, the belt part 310 is unwound as much as the needed length long enough to tie the cables, and the cables are tied, and the belt part 310 is tightened and cut, and the remaining leftovers are wound on the reel 370 and are stored.