Method for operating a surface treatment device
First Claim
1. A method for operating an automatically movable surface treatment device in the form of a cleaning device, comprising:
- moving the surface treatment device in a room,detecting ultrasonic waves reflected at obstacles with an ultrasonic sensor on the surface treatment device to determine obstacles of the cleaning device,detecting sounds with the ultrasonic sensor,comparing frequencies of the sounds detected by the ultrasonic sensor with reference frequencies typically occurring in an event of a glass breakage, anddetermining an actual glass breakage in an event of a match between the detected frequencies and the reference frequencies, andcomparing with a measuring device that detects features of the room, a current state of the room with a state of the room according to a stored room map when the glass breakage is determined, wherein the surface treatment device is moved in the room in an area of a window or a door.
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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.
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Citations
11 Claims
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1. A method for operating an automatically movable surface treatment device in the form of a cleaning device, comprising:
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moving the surface treatment device in a room, detecting ultrasonic waves reflected at obstacles with an ultrasonic sensor on the surface treatment device to determine obstacles of the cleaning device, detecting sounds with the ultrasonic sensor, comparing frequencies of the sounds detected by the ultrasonic sensor with reference frequencies typically occurring in an event of a glass breakage, and determining an actual glass breakage in an event of a match between the detected frequencies and the reference frequencies, and comparing with a measuring device that detects features of the room, a current state of the room with a state of the room according to a stored room map when the glass breakage is determined, wherein the surface treatment device is moved in the room in an area of a window or a door. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An automatically movable surface treatment device (1) in the form of a cleaning robot that is configured for cleaning the surface, comprising:
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an ultrasonic sensor (5) that is configured to detect ultrasonic waves reflected at obstacles as well as sound, an evaluation device (12), which is embodied to compare frequencies of the sound detected by means of the ultrasonic sensor (5) with reference frequencies typically occurring in an event of a glass breakage, and, in an event of a match, to determine the glass breakage, and a measuring device that is configured for detecting features of a room in order to orient the surface treatment device in the room and to create a room map.
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- 9. A system of an automatically movable surface treatment device (1) in the form of a cleaning robot that is configured for cleaning a surface and having an ultrasonic sensor that is configured to detect ultrasonic waves reflected at obstacles as well as sound, and a house alarm system (10), in which the surface treatment device (1) is integrated in terms of communication, wherein the house alarm system (10) has an evaluation device, which is embodied to compare frequencies of the sound detected by means of the ultrasonic sensor (5) with reference frequencies typically occurring in an event of a glass breakage, and, in an event of a match, to determine the glass breakage, and wherein the surface treatment device has a measuring device that is configured for detecting features of a room in order to orient the surface treatment device in the room and to create a room map.
Specification