In a mobile robot and a control method therefor according to the present disclosure, a plurality of mobile robots located in an area confirm the positions of other mobile robots and operate in cooperation with each other to cooperatively clean then area. One mobile robot moves to follow the position of another mobile robot, so that the mobile robots with different cleaning types cooperate to clean the area. Accordingly, the plurality of mobile robots can cooperatively perform cleaning without colliding within one area, and by combining or changing a plurality of position detection methods as needed, the position of another mobile robot can be easily calculated and the cleaning efficiency is greatly improved.

One object determining system comprising: an air ejection device, configured to eject air; a distance detecting circuit, configured to detect distances between an electronic device comprising the object determining system and at least one location of an object when the air ejection device ejects air to the object; and a determining circuit, configured to determine a type of the object according to variations of the distances.

A method for calculating a scale factor for a gyroscope can include detecting, by a gyroscope, a physical motion of a robot, detecting, by an optical flow (OF) sensor (and/or camera), one or more image signals including information; and deriving estimates of sensor calibration parameters based on the detected physical motion and the information.

A mobile robot of the present disclosure includes: a traveling unit configured to move a main body; a lidar sensor configured to acquire terrain information outside the main body; a camera sensor configured to acquire an image outside the main body; and a controller configured to fuse the image and a detection signal of the lidar sensor to select a front edge for the next movement and set a target location of the next movement at the front edge to perform mapping travelling. Therefore, in a situation where there is no map, the mobile robot can provide an accurate map with a minimum speed change when travelling while drawing the map.

Disclosed herein is a travel method of an intelligent robot cleaner. According to the present disclosure, it is possible to minimize a cleaning travel path in a cleaning target region and thus reduce a cleaning time by accumulating a plus unit point when the cleaner travels along a plurality of cleaning travel paths, accumulating a minus unit point when the cleaner travels along an overlapped cleaning travel path among the plurality of cleaning travel paths, and determining a final cleaning travel path by learning the accumulated unit point. The intelligent robot cleaner can be associated with an artificial intelligence module, unmanned aerial vehicle (UAV), a robot, an augmented reality (AR) device, a virtual reality (VR) device, devices related to 5G services, and the like.

Disclosed are a mobile robot, a control method therefor, and a terminal. The mobile robot according to the present disclosure comprises: a driving unit for moving a main body; a communication unit for communicating with a plurality of location information transmitters installed within an area and transmitting signals; and a control unit for calculating positioning-related information from at least one of a first signal transmitted between the location information transmitters and a second signal transmitted between the main body and the location information transmitters, detecting an entry of a moving body into the area in response to the amount of a change in the calculated positioning-related information being outside of a reference range, and performing an operation corresponding to the detection.

A robot cleaner includes a controller configured to sense an obstacle with a sensing unit of the robot cleaner, and control a driving unit of the robot cleaner to move a main body of the robot cleaner forward into a first contact state in which a front end of a cleaning unit cleans a first region while in contact with the obstacle. After the first contact state, the controller controls the driving unit to move the main body according to a predetermined connecting operation into a second contact state in which the front end of the cleaning unit cleans a second region while in contact with the obstacle, the first region and the second region being arranged along an outline of the obstacle.

An artificial intelligence cleaner includes a memory, a microphone configured to receive a speech command, an image sensor configured to acquire image data, a driving unit configured to drive the artificial intelligence cleaner, and a processor configured to determine whether a cleaning instruction image is recognized using the image data when the speech command input to the microphone is a command for designating an area to be preferentially cleaned, acquire a position of a user using the image data when the cleaning instruction image is recognized, and controls the driving unit to move the artificial intelligence cleaner to the acquired position of the user.

Disclosed herein is an air cleaner disposed in an indoor space. An air cleaner according to an embodiment includes a blowing device including a suction port and a discharge port, a fan motor configured to generate an air flow, a purifying unit installed inside the blowing device to purify air, a driving portion configured to move the air cleaner, a communication unit configured to communicate with a moving agent moving in the indoor space, and a processor configured to receive status information including at least one of air quality information and dust occurrence information collected by the moving agent, determine a specific zone in which air purification is to be performed using the status information collected by the moving agent, and perform air purification in the specific zone.

The present application provides a mobile robot, including: a robot body, a drive wheel, and at least two distance sensors. The robot body includes a target side surface. The drive wheel is provided at a bottom of the robot body. The drive wheel is provided to drive the robot body to move. The at least two distance sensors are sequentially provided at different positions on the robot body along a forward movement direction of the mobile robot.