A robot according to an embodiment of the present invention comprises: at least one wheel for traveling; a water tank in which an accommodating space accommodating water is formed; a water pump connected to the water tank; a water purifier connected to the water pump to purify and discharge water provided from the water tank; and an air cleaner configured to suction and filter air and discharge the filtered air, wherein the water tank is disposed below the water pump, the water purifier, and the air cleaner.

A plurality of autonomous mobile robots includes a first mobile robot provided with a transmitting sensor for outputting sound wave of a first frequency, and a first module for transmitting and receiving a signal of a second frequency higher than the first frequency. A second mobile robot is provided with a receiving sensor for receiving the sound wave of the first frequency and a second module for transmitting and receiving the signal of the second frequency. A control unit of the second mobile robot synchronizes an output time of the sound wave of the first frequency from the first mobile robot using the signal of the second frequency, and determines a relative position of the first mobile robot using the sound wave of the first frequency.

A plurality of autonomous mobile robots includes a first mobile robot having a first module for transmitting and receiving an Ultra-Wideband (UWB) signal, and a second mobile robot having a second module for transmitting and receiving the UWB signal. The second mobile robot follows the first mobile robot using the UWB signal.

A method for multipoint purification by a robotic air purifier, comprising the following steps: S1: establishing a coordinate map of an area to be purified; S2: the robotic air purifier moves within the area to be purified according to a preconfigured movement model, measuring air quality, remembering as level-1 pollution sources those points where a pollution value exceeds a preset threshold, and marking the coordinates of said points on the coordinate map; S3: when having completed its movement over the area to be purified, the robotic air purifier moves to each level-1 pollution source point and performs an initial purification process, while at the same time measuring air quality, continuing in this way until the air quality at all said level-1 pollution sources complies with requirements.

Disclosed herein is a cleaning robot including a body; a display unit configured to display information related to various operations of the cleaning robot; a dust collecting box separably coupled with the body to collect dust introduced through a dust suction port; an air cleaning box to replace the dust collecting box and installed at the body to purify air introduced into the body and then discharge the purified air; and a control unit configured to recognize whether a box installed at the body is the dust collecting box or the air cleaning box, and to control the cleaning robot to perform a cleaning mode or an air cleaning mode according to a recognized result.

A plurality of autonomous mobile robots includes a first mobile robot having a first module for transmitting and receiving an Ultra-Wideband (UWB) signal, and a second mobile robot having a second module for transmitting and receiving the UWB signal. The second mobile robot follows the first mobile robot using the UWB signal.

A movable air conditioner includes an air conditioner main body, an air conditioning unit installed in the air conditioner main body and configured to generate a cold air or a warm air, a moving unit configured to move the air conditioner main body, a control unit configured to control the air conditioning unit and the moving unit, and a human body recognition unit configured to recognize a person existing in a specific space. The control unit is configured to control the moving unit so that the air conditioner main body is moved toward the person recognized by the human body recognition unit so as to supply the cold air or the warm air from the air conditioning unit to the person recognized by the human body recognition unit.

An air purification device includes a movement portion configured to move the air purification device to a target region; and a purification portion configured to purify air in the target region to improve air quality of the target region.

An automatically moving floor treatment appliance has a floor treatment element for acting on a surface to be treated, and a control device for controlling the floor treatment element. To increase the area of application of the floor treatment appliance, the control device is embodied to automatically control the floor treatment element as a function of a measuring result from an air parameter sensor in such a way that a floor treatment of the surface to be treated occurs using the floor treatment element and/or to automatically control the floor treatment element as a function of environmental data stored in an external storage device and relating to an air quality.

Provided is a cleaning device comprising: a camera unit for capturing an image; a cleaning unit for cleaning; an air purification unit for purifying air; a driving unit for moving the cleaning device; and a processor for controlling the camera unit, the cleaning unit, the air purification unit and the driving unit, wherein the processor detects a user by using the camera unit, cleans by moving the cleaning device to a position exceeding a first threshold distance from the detected user when the cleaning device is in a cleaning mode, and purifies the air by moving the cleaning device to a position within a second threshold distance from the detected user when the cleaning device is in an air purification mode.