Vorwerk & Co Interholding Gmbh

Frank Meyer

Stefan Hilgers

Harald Windorfer

Markus Cornelissen

Heinrich Iglseder

Andres Sauerwald

Martin Meggle

Carsten Jacobs

Daniel Zuber

Martin Fieseler

Patrick Schlischka

Dirk Schmidt

Thomas Rodemann

Gerd Zeeb

Uwe Heider

Dirk Gräfingholt

Mario Wallmeyer

Dirk Röllinghoff

Andreas Lamping

Dirk Hellrung

A method for operating an automatically movable surface treatment device that can move in a room and possibly carries out surface treatment. An ultrasonic sensor detects ultrasound, in particular ultrasonic waves reflected at obstacles. The ultrasonic sensor detects glass breakage noises, wherein frequencies of sound detected by means of the ultrasonic sensor are compared with reference frequencies typically occurring in the event of a glass breakage, and wherein, in the event of a match, a glass breakage, in particular a break-in through a pane of glass of a window or of a door, is determined. A system comprising an automatically movable surface treatment device having an ultrasonic sensor and a house alarm system in which the surface treatment device is integrated in terms of communication.

Method for operating a surface treatment device

A surface treatment device, in particular a cleaning robot, has at least one optical device element and an evaluation unit. The optical device element is configured such that light emitted by the optical device element is at least partially reflected to an optical device element by means of the external element. During an interaction of the optical device element and the external element for the purpose of detecting a presence of smoke between the optical device element and the external element, the evaluation unit evaluates a measurement signal received by the optical device element with respect to a temporal change in signal amplitude, and triggers an alarm signal when a defined threshold value has been passed.

Base station for connection with a surface treatment device, system comprised of a surface treatment device and base station, and method for operating a base station

A vacuum cleaner for cleaning floors or carpets, having a suction mouth (6), a base plate (5), which encloses the suction mouth (6), and a suction line, electrostatic charging of parts of the vacuum cleaner being provided in order to assist the dust uptake. In order advantageously to provide the vacuum cleaner with the dust uptake being assisted by electrostatic charging, the base plate (5) is electrostatically charged, and the electrostatic charging is carried out by a separate generator (8) provided in the vacuum cleaner.

Vacuum cleaner with electrostatically charged components

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Iserlohn, Germany

Frank Meyer