The present invention relates to a robot cleaner. The robot cleaner comprises: a cleaner body equipped with a driving wheel; and a cleaning nozzle mounted inside a downwardly open opening portion in a lower portion of the cleaner body so as to be able to ascend and descend. The cleaning nozzle can be supported by a plurality of ascending/descending guides and a plurality of auxiliary ascending/descending guides so that the cleaning nozzle can ascend and descend relative to the cleaner body according to changes in the height of a cleaning surface on which the cleaner body travels. Accordingly, the cleaning to nozzle rises upon being pressed by a compressible floor such as a carpet, thus solving the problem of the cleaning nozzle catching on the cleaning surface. Therefore, travel performance can be improved, and the load on a brush driving part can be reduced.

Disclosed is a method of controlling a plurality of robot cleaners, the method including a first step of docking a first robot cleaner and a second robot cleaner with a first docking device and a second docking device, respectively, a second step of checking whether the first robot cleaner is undocked from the first docking device, and a third step of if the first robot cleaner docked with the first docking device again, undocking the second robot cleaner from the second docking device.

A mobile cleaner includes a dust housing, an agitator, and a dustpan. The dust housing has a collection opening facing a surface. The agitator is rotatably disposed within the dust housing and is exposed to the surface through the collection opening. The agitator is configured to move foreign material from the floor into the dust housing. The dustpan directs the foreign material moved by the agitator into the dust housing. The dustpan extends around a portion of an outer circumferential surface of the agitator and is configured to rotate independent of the agitator.

An autonomous floor cleaner can include a housing, a drive system for autonomously moving the housing over the surface to be cleaned, a controller for controlling the operation of the autonomous floor cleaner, and warning system for issuing a warning based on the detection of moisture inside the robot. Methods for issuing a warning are disclosed.

A robot cleaner comprising: a cleaner body including a controller, the cleaner body having a dust container accommodation part formed therein; a wheel unit mounted in the cleaner body, the wheel unit of which driving is controlled by the controller; and a dust container detachably coupled to the dust container accommodation part, wherein a first opening and a second opening are disposed at the same height in an inner wall of the dust container accommodation part, wherein the dust container includes: an entrance and an exit, disposed side by side along the circumference of the dust container, the entrance and the exit, respectively communicating with the first opening and the second opening when the dust container is accommodated in the dust container accommodation part; and a flow separating part extending downwardly inclined along the inner circumference of the dust container.

A suction device and a suction force adjustment method thereof are provided. A detecting device collects sound generated when the suction device executes a suction operation to obtain characteristics of a sound signal. The detecting device determines a clogging degree of a filter disposed on an exhaust vent of a suction unit, an airflow velocity in a suction pipe, a material of the suctioned surface, and a degree of closure between a suction port of the suction device and the suctioned surface according to the characteristics of the sound signal. A control host adjusts a suction force of the suction unit or adjusts the degree of closure between the suction port of the suction device and the suctioned surface according to a detected result of the detecting device, and provides warning information for cleaning or replacing the filter.

There is provided an electronic device including a light source module, an image sensor and a processor. The light source module projects a first pattern and a second pattern toward a moving direction. The image sensor captures an image of the first pattern and an image of the second pattern. The processor calculates one-dimensional depth information according to the image of the first pattern and calculates two-dimensional depth information according to the image of the second pattern.

A cleaning device includes: a housing; a drive device for automatically moving the cleaning device in a movement direction; and a wet-cleaning module accommodated in the housing, the wet-cleaning module including a moveable cleaning element for the wet cleaning of surfaces to be cleaned. The cleaning element is belt-shaped. In an embodiment, the wet-cleaning module has three positions for the belt-shaped cleaning element: a cleaning position, in which the cleaning element is configured to contact a surface to be cleaned with a cleaning surface; a parking position, in which the cleaning element is at a distance from the surface to be cleaned; and a regeneration position located between the cleaning position and the parking position, or a regeneration position located in the parking position in which the cleaning element is regeneratable. The wet-cleaning module has a transport mechanism for moving the cleaning element into its cleaning, parking, and regeneration positions.

A cleaning robot, comprising: a robot body, a control unit provided in the robot body, and a fixing unit provided at the bottom of a front end of the robot body, the fixing unit comprising a sleeve and an ultrasonic sensor, the ultrasonic sensor being fixed in the sleeve and being electrically connected to the control unit, and the ultrasonic sensor being used for emitting an ultrasonic wave downwards and receiving an echo reflected by different ground forms.

A robot cleaner is provided. The robot cleaner includes a driving unit, a memory storing a map for a space in which the robot cleaner is located, and a processor which controls the driving unit to drive the robot cleaner in a cleaning region included in the map based on information obtained through a sensor, controls the driving unit so as to identify types of obstacles located in the cleaning region while the robot cleaner drives in the cleaning region and change the driving direction of the robot cleaner at different distances for different types of obstacles.