In general, the present disclosure is directed to a hand-held surface cleaning device that includes a relatively compact form-factor to allow users to store the same in a nearby location (e.g., in a drawer, in an associated charging dock, on a table top) for easy access to perform relatively small cleaning tasks that would otherwise require retrieving a full-size vacuum from storage. A hand-held surface cleaning device consistent with aspects of the present disclosure includes a body (or body portion) with a motor, power source and dust cup disposed therein. The body portion also functions as a handgrip to allow the hand-held surface cleaning device to be operated by one hand, for example.

A cleaning robot including a main body; a motion driver configured to move the main body; a pad motor configured to rotate a pad below a bottom surface of the main body; a light source configured to irradiate light to the pad; and at least one processor configured to, based on an amount of reflection of the light from the pad, control rotation speed of the pad motor and/or control the motion driver to return the cleaning robot to a docking station.

The present invention provides unique portable or stationary hose retraction systems in a single compact unit having an elongated hose, a chamber or plenum for storing the hose, a primary vacuum source for creating suction in the hose, and a secondary vacuum source for retracting the hose into the chamber. Embodiments may include one or more switches located at a distal end of the hose for controlling the primary and secondary vacuum sources. Other embodiments include a movable robotic unit with a proximity generating signal at the distal end of the hose, whereby the robotic unit may withdraw the hose as needed during use, and the secondary vacuum source may retract slack in the hose during use, or may retract the entire hose and the robotic unit after use.

A cleaning system includes a robotic cleaner and an evacuation station. The robotic cleaner can dock with the evacuation station to have debris evacuated by the evacuation station. The robotic cleaner includes a bin to store debris, and the bin includes a port door through which the debris can be evacuated into the evacuation station. The evacuation station includes a vacuum motor to evacuate the bin of the robotic cleaner.

A work system comprising a first autonomous work machine and a second autonomous work machine, wherein the first autonomous work machine includes: a detection unit configured to detect dirt on the second autonomous work machine; and a notification unit configured to, if the detection unit detects dirt, notify the second autonomous work machine of dirt information indicating the detection of the dirt, and the second autonomous work machine removes the dirt or waits in a predetermined position in response to the notification of the dirt information by the notification unit.

A container includes a tank body and a cover. The tank body defines an opening. The cover detachably covers the opening of the tank body. A sidewall of the tank body defines an accommodating groove. The cover includes a cover body and a plug-in piece extending from the cover body to the tank body. The plug-in piece is capable of extending into the accommodating groove. The container further includes a fixing piece, and the fixing piece detachably covers an opening of the accommodating groove and is capable of being buckled with the plug-in piece accommodated in the accommodating groove.

A communication method of a station device may include receiving a new version of software related to control of a cordless vacuum cleaner from a server device, storing the received new version of software in a memory, identifying whether a preset condition under which the new version of software is downloadable to the cordless vacuum cleaner is satisfied, and when the preset condition is satisfied, transmitting the new version of software stored in the memory to the cordless vacuum cleaner.

Provided are a driving robot apparatus, a control method of the driving robot apparatus, and a computer-readable recording medium having recorded thereon a computer program to cause the control method to be performed. The control method of the driving robot apparatus includes: obtaining, via a sensor, a load value of a rotary motor of the driving robot apparatus as the rotary motor rotates a holder; identifying water content of a cleaning pad fixed to the holder, based on the load value of the rotary motor; and controlling a cleaning assembly to supply water to the cleaning pad fixed to the holder, based on the load value of the rotary motor.

A pouch designed for administration of an active ingredient in the oral cavity is disclosed, the pouch containing a matrix composition including a combination of nicotine and a water-soluble composition.

A method of managing a plurality of washrooms in a facility for servicing by service personnel and, more particularly, for establishing servicing operations which provide for service of at least selected of the dispensers before their consumable product supply falls below a pre-selected refill value.