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US 10,327,614 B2Granted
Device for treating a surface
AssigneeVorwerk & Co. Interholding GmbH
InventorsLorenz Hillen, Mara Brandt
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AssigneeVorwerk & Co. Interholding GmbH
InventorsLorenz Hillen, Mara Brandt
Estimating the term…
A device for treating a surface, in particular to a cleaning robot, has a detection device for identifying the type of surface, which detection device has a light source for irradiating the surface with light and has a sensor for detecting the light which is reflected by the surface. In order to improve the identification of the type of surface, it is proposed that a three-dimensional screen panel which forms a plurality of partial volumes is associated with the sensor, wherein each partial volume is in each case associated with a different sensor subarea of the sensor, and wherein adjacent sensor subareas are optically separated from one another by means of the screen panel such that light is prevented from passing from a first partial volume to a second partial volume. Furthermore, the invention relates to a method for operating a device for treating a surface.
A device (1) for treating a surface (21), having a detection device (2) for identifying the type of surface (21), which detection device (2) has a light source (3, 4, 5, 6) for irradiating the surface (21) with light and a sensor (7) for detecting the light, which is reflected by the surface (21), wherein a three-dimensional screen panel (12), which forms a plurality of partial volumes (13, 14, 15, 16), is associated with the sensor (7), wherein each partial volume (13, 14, 15, 16) is in each case associated with a different sensor subarea (8, 9, 10, 11) of the sensor (7), and wherein adjacent sensor subareas (8, 9, 10, 11) are optically separated from one another by means of the screen panel (12) such that light is prevented from passing from a first partial volume (13, 14, 15, 16) to a second partial volume (13, 14, 15, 16).
A method for operating a device (1) for treating a surface (21), wherein the surface (21) is irradiated with light, and light reflected from the surface (21) is evaluated to identify the type of surface (21), wherein light is determined in a plurality of optically separated partial volumes (13, 14, 15, 16) of a three-dimensional screen panel (12) associated with a sensor (7), is irradiated onto the surface (21), and is reflected from the surface (21) onto a sensor subarea (8, 9, 10, 11) of the sensor (7), which is associated with the respective partial volume (13, 14, 15, 16), wherein an illuminating parameter of the light emitted within a first partial volume (13, 14, 15, 16) differs from an illuminating parameter of the light emitted within a second partial volume (13, 14, 15, 16), and wherein the light received by the sensor subareas (8, 9, 10, 11) is evaluated with regard to surface parameters of the surface (21), which differ from one another.
Dependencies are inferred from the claim text.