Abstract: An automatic cleaning apparatus has a cleaner body having at least one driving wheel, and in certain disclosed embodiments, a vapor spray means installed in the cleaner body for generating water vapor during operation, and spraying the generated water vapor toward a lower part of the cleaner body.

Abstract: A mobile robot capable of humidifying an entire room. The mobile robot comprises a driving part for movably supporting a body and providing a driving force to move the body, a humidifier disposed on the body; and a controller for controlling the driving part.

Abstract: A robot vacuum cleaner has a driving unit moving a cleaner body on a cleaning surface; a distance detecting unit detecting a distance of travel by the driving unit; an obstacle detecting unit detecting an obstacle near the cleaner body; and a central processing unit moving the cleaner body to a location a certain distance away from the obstacle according to a cleaning travel pattern when the obstacle detecting unit detects an obstacle, and variably applying the distance as the obstacle is detected and outputting a travel signal to the driving unit, thereby evenly covering the cleaning area.

Abstract: A robot control system and a robot control method provide improved user convenience in operating the system. The robot control system includes a wireless IP sharing device, connected with the Internet, for transmitting and receiving an image signal and/or a control signal, a robot running by itself in accordance with a command received through the wireless IP sharing device, and performing a designated job, the robot being installed with a wireless communication module, a portable wireless terminal having a motion sensor, for wirelessly transmitting an operation command to the wireless communication module, or receiving image signal and/or control signal, and a robot server, connected with the Internet, for outputting a control screen of the robot, and the image signal and/or the control signal which is received from the robot, to the portable wireless terminal. The robot is controlled by use of the motion sensor installed at the portable wireless terminal.

Abstract: A robot cleaner system and a method for the robot cleaner to return to an external recharging apparatus. The robot cleaner system has an external recharging apparatus including a charging stand having a charging terminal, and a plurality of transmission parts for sending signals having different codes and strengths; a robot cleaner including a rechargeable battery, a connection terminal for connection with the charging terminal to supply power to the rechargeable battery, a receiving part for receiving signals from the plurality of transmission parts, and a control part for controlling a movement of the robot cleaner using the signals received by the receiving part, so that the connection terminal is connected to the charging terminal.

Abstract: A method of compensating a gyro sensor of a robot cleaner is provided. The method includes changing to a compensation mode if a robot cleaner travels greater than a compensation reference, and compensating an output value of the gyro sensor by use of an upper camera.

Abstract: A coordinates compensation method of a robot cleaner using an angle sensor compensates coordinates of the robot cleaner with reference to absolute coordinates of a recharging station, so as to improve robot cleaner's path following. The robot cleaner is in a standby mode at the recharging station, and moves to an operation area to perform a given job. The robot cleaner stops the given job upon determining an accumulative angle exceeding a predetermined level, and returns to the recharging station. Current coordinates of the robot cleaner are aligned with reference coordinates of the recharging station, and the robot cleaner moves to a previous spot where it was before it returns to the recharging station, and resumes the work from where it stopped.

Abstract: A mobile robot measures a rotation angle using information from an image photographed by a vision camera. A mobile robot system comprises a main body of the robot, a driving part for driving a plurality of wheels; a vision camera mounted on a main body thereof to photograph an upper image which is perpendicular to a traveling direction; and a controller for calculating a rotation angle using polar-mapping image data obtained by polar-mapping a ceiling image, photographed by the vision camera, with respect to a ceiling of a working area. The controller drives the driving part using a calculated rotation angle. The rotation angle is measured by the vision cameras and the rotation angle can be used to compensate the working path, without having to provide expensive devices such as an accelerometer or a gyroscope, thereby saving manufacturing cost.

Abstract: A robot vacuum cleaner comprises a main body having a driving wheel, a suction port provided underneath the main body for drawing in contaminants on a surface to be cleaned, and a guide member disposed underneath the main body for guiding contaminants on the surface to be cleaned toward the suction port.

Abstract: A power recharger for use with a robot cleaner has a recharging terminal to which a battery terminal of the robot cleaner is docked and an anchor member on a rear side of the body of the recharging unit. The anchor member fills in the space defined between the wall of the room and the power recharger. The anchor member therefore securely supports the power recharger in the battery recharging process.