A method for guiding a robot includes controlling a wireless signal transmitting device of a charging base to transmit wireless signals, by sending a control signal to the charging base when a battery level of the robot is less than a preset level. Once an orientation of the charging base is determined according to signal strengths of wireless signals detected by at least one signal detecting device of the robot, a moving mechanism of the robot is controlled to drive the robot to move towards the orientation of the charging base.

A method for guiding a robot towards a charging base includes controlling a device of the charging base to emit sound when a battery level of the robot is less than a preset level. Once an orientation of the charging base in relation to the robot is determined, according to signal strengths of audio signals detected by microphone of the robot, a moving mechanism of the robot is controlled to drive the robot to move towards the charging base.

A vacuum cleaner includes a cleaner body having a moving unit; a suction unit configured to suction dust and air; a detecting unit configured to detect movement of the suction unit; and a control part configured to determine whether movement of the cleaner body is required, based on information detected by the suction unit, and to control the moving unit when the movement of the cleaner body is required, wherein the control part determines a target location to which the cleaner body will be moved, determines a moving route to the target location based on a detected obstacle, controls the moving unit so that the cleaner body is moved along the determined moving route, stops a motor when it is determined that the cleaner body is not in contact with a floor surface, and thus prevents a user's injury.

The present invention relates to a method of controlling a cart robot in a movement restricted area and a cart robot for implementing the same. A cart robot which controls movement thereof in a movement restricted area according to an embodiment of the present invention includes a positioning sensor configured to receive a signal from a transmission module, a movement unit configured to move the cart robot, and a controller configured to control the movement unit to park the cart robot around the movement restricted area when the positioning sensor receives data for notifying that the cart robot enters the movement restricted area from the transmission module.

A system is described for determining the position of a vehicle on a site and for calculating a trajectory, including at least one vehicle, at least one auxiliary device and at least one reflector element, the at least one reflector element being mounted in the surroundings of the vehicle along a designated route section and the auxiliary device being suitable for transmitting and receiving electromagnetic beams. A method is also described.

A robotic mowing system that includes a station and a robotic mower. The robotic mower has a controller and a memorizer, the memorizer stores a working procedure, and after receiving a start command input by a user, the controller executes the working procedure, so as to control the robotic mower to automatically and repeatedly mow and return to the station to be charged until the controller receives a stop command. In this way, the user does not need to input working parameters, and costs are relatively low.

A robot cleaner having a main body, a driving unit for moving the main body, a sensing unit for sensing information related to an obstacle, and a controller for controlling the driving unit to prevent collision of the main body with the obstacle. The controller controls the driving unit to reverse the main body with respect to the obstacle so as to prevent the main body from contacting the obstacle based on a distance between the main body and the obstacle.

A robot cleaner according to an embodiment of the present invention comprises: a travelling part for moving a body; a memory for storing travel state information of the traveling part, which is recorded while a cleaning operation is performed on the basis of a first map; and a control part for discriminately detecting a first area and a second area divided from a plurality of cleaning areas corresponding to the first map, on the basis of the stored travel state information. Moreover, the control part may generate a second map by removing one of the first area and the second area from the first map, and then control the travelling part to perform a cleaning operation in a changed cleaning mode on the basis of the generated second map.

A vacuum cleaner capable of more efficiently cleaning narrow spots while effectively avoiding an object. An object sensor provided in a main casing detects the presence or absence of an object within a specified distance in a plurality of directions on a forward side of the main casing. A control unit controls operation of driving wheels, based on detection of an object by the object sensor to thereby make the main casing autonomously travel. When an object is detected by the object sensor, the control unit controls the operation of the driving wheels, so that the main casing is swung to an angle corresponding to a direction of the detected object to thereby make a side portion of the main casing face the object.

A cleaning robot and a method of controlling the same, the cleaning robot performing docking by detecting light emitted from a docking station using a Lidar sensor or a light receiving element separately provided on a printed circuit board (PCB) of the Lidar sensor, and performing docking based on the number of light emitting elements of the docking station identified according to the detected light are provided. The cleaning robot includes a main body, a drive unit configured to move the main body, a Lidar sensor including a Lidar optical transmitter, a Lidar optical receiver, and the PCB to which the Lidar optical transmitter and the Lidar optical receiver are fixed and provided to be rotatable, a docking optical receiver fixed to the PCB and configured to receive light emitted from the docking optical transmitter of the docking station, and at least one processor is configured to control the drive unit to be docked on the docking station based on light received by the docking optical receiver.