Method for operating a surface treatment device
US10366585B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 4, 2016 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Jul 4, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/04
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.