Abstract: Provided are a method of performing cloud simultaneous localization and mapping (SLAM), and a robot and a cloud server for performing the same, and a robot for performing cloud SLAM in real time includes a first sensor configured to acquire sensor data necessary to perform the SLAM, a map storage unit configured to store a map synchronized with a cloud server, a communication unit configured to transmit the sensor data, a feature, or a last frame to the cloud server and receive a local map patch or a global pose from the cloud server, and a control unit configured to generate the sensor data, the feature extracted from the sensor data, or the last frame and control movement of the robot using the local map patch or the global pose received from the cloud server.

Abstract: A robot according to an embodiment of the present invention provides a road guidance service and includes a driving driver configured to move the robot, a receiver configured to receive a road guidance request from a user, and a controller configured to set a path to a destination on basis of destination information included in the received road guidance request, generate guidance information including the set path, transmit the generated guidance information to each of other robots to communicate with the robot, and perform a road guidance operation corresponding to at least one path of the set path, and the at least one path is a path provided in the certain region where the robot is disposed.

Abstract: An assistant robot for assisting a robot according to an embodiment of the present invention includes a communication unit for transmitting or receiving data; and a controller for controlling a charging module for charging a battery of a robot and an operation of the assistant robot, wherein the controller performs control to check a battery level of the robot, determine whether to perform charge, on the basis of the checked battery level, connect the charging module to the robot on the basis of the determination on whether to perform charge, and charge the battery of the robot up to a predetermined battery level.

Abstract: Disclosed is a drone. The present invention includes a plurality of propellers creating a lift to prevent inclination and overturn of the drone due to a lift difference generated from uneven ground, a power driving unit providing a rotation power to each of a plurality of the propellers, a ground sensing unit measuring a distance to a first region of the ground and a shape of the first region, and a controller controlling the power driving unit to differentiate rotation ratios of a plurality of the propellers based on the measured distance and shape if receiving an input signal for landing at the first region.

Abstract: A robot cleaner including a driving unit configured to move the robot cleaner; a charging unit disposed on an upper surface of the robot cleaner, and configured to wirelessly charge a mobile terminal; and a control unit configured to control the driving unit to move the robot cleaner to a position of the mobile terminal corresponding to a sensed preset signal, control the robot cleaner to execute a wireless charging of the mobile terminal placed on the charging unit according to a charging command, and output a feedback signal when the wireless charging of the mobile terminal is completed.

Abstract: Disclosed is a drone. The present invention includes a plurality of propellers creating a lift to prevent inclination and overturn of the drone due to a lift difference generated from uneven ground, a power driving unit providing a rotation power to each of a plurality of the propellers, a ground sensing unit measuring a distance to a first region of the ground and a shape of the first region, and a controller controlling the power driving unit to differentiate rotation ratios of a plurality of the propellers based on the measured distance and shape if receiving an input signal for landing at the first region.

Abstract: A robot cleaner including a driving unit configured to move the robot cleaner; a charging unit disposed on an upper surface of the robot cleaner, and configured to wirelessly charge a mobile terminal; and a control unit configured to control the driving unit to move the robot cleaner to a position of the mobile terminal corresponding to a sensed preset signal, control the robot cleaner to execute a wireless charging of the mobile terminal placed on the charging unit according to a charging command, and output a feedback signal when the wireless charging of the mobile terminal is completed.