Granted Patent B2

US 12,279,743 · App. 18/004,091 · Granted Apr 22, 2025

Inventors: Julius Geis (Burkardroth, DE); Michael Hohmann (Bad Neustadt a.d. Saale, DE); Juri Gebel (Hohenroth, DE); Dominik Schreiner (Kalbach, DE)

Assignee: BSH Hausgeraete GmbH

A47L9/2805A47L9/2852A47L9/2894G05D1/0274A47L2201/04

Abstract

Claims (23)

1. A method of using a cleaning robot for the improved cleaning of edges of a wall having a projecting baseboard, the method comprising:

providing the cleaning robot with at least one impact sensor and at least one distance detector disposed above the at least one impact sensor in an operating state;

using the cleaning robot to strike against the baseboard in a first cleaning pass, causing the at least one impact sensor to generate a first signal and causing the at least one distance detector to detect a first distance from the wall;

using the cleaning robot to continue the first cleaning pass until the cleaning robot strikes against the baseboard at least once more, causing the at least one impact sensor to generate a second signal and the at least one distance detector to detect a second distance from the wall;

using a computer facility of the cleaning robot to calculate from the first and second signals two spatial points and a first straight line running through the two spatial points;

using the computer facility to determine an approach boundary of the cleaning robot relative to the wall for subsequent cleaning passes, by using the distances and the two spatial points; and

using the computer facility to control the cleaning robot during subsequent cleaning passes exclusively by using the at least one distance detector, causing the cleaning robot to only travel as far as the approach boundary and thereby permitting an improved cleaning of edges.

2. The method according to claim 1 , which further comprises:

using the cleaning robot to continue the first cleaning pass until the cleaning robot strikes once again against the baseboard, causing the at least one impact sensor to generate a further signal and the at least one distance detector to detect a further distance from the wall;

using the computer facility to calculate a further spatial point from the further signal; and

using the computer facility to consider the further spatial point for adapting the first straight line calculated from the first and second spatial points upon the further spatial point falling below a predefined distance from the first straight line, and using the computer facility to not consider the further spatial point upon the further spatial point being at or exceeding the predefined distance from the first straight line.

3. The method according to claim 1 , which further comprises using the computer facility to calculate a second straight line from the distances from the wall detected at least at the first and the second spatial points and to discard the first straight line upon a predefined angular deviation between the two straight lines being exceeded.

4. The method according to claim 1 , which further comprises causing the first distance to correspond to a thickness of the baseboard at the first spatial point.

5. The method according to claim 4 , which further comprises causing the second distance to correspond to a thickness of the baseboard at the second spatial point.

6. The method according to claim 1 , which further comprises:

using a distance sensor of the at least one distance detector for measuring the distance from the wall at a respective spatial point, or

for different spatial points, inputting individually associated distances from the wall and thus thicknesses of the baseboards in advance and, upon an impact against the baseboard, causing the at least one distance detector to use the distance input for the spatial point.

7. A cleaning robot, comprising:

at least one impact sensor;

at least one distance detector disposed above said at least one impact sensor in an operating state; and

a computer facility configured for carrying out the method according to claim 1 .

8. The cleaning robot according to claim 7 , which further comprises a top and a front side of the cleaning robot, said at least one distance detector being disposed at said top or on said front side above said at least one impact sensor.

9. The cleaning robot according to claim 7 , which further comprises a resilient bumper bar in which said at least one impact sensor is disposed.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (9)