Robotic vacuum cleaning
First Claim
Patent Images
1. A robotic vacuum cleaner comprising:
- a suction nozzle with a cleaning brush arranged for contacting a floor;
a drive and steering mechanism for providing mobility and steerability to at least the suction nozzle;
at least one detector for determining boundaries of a vacuum cleanable floor surface; and
a control system communicating with the at least one detector and with the drive mechanism for conducting the suction nozzle over the vacuum cleanable floor surface,wherein the control system is arranged for controlling at least frequency or intensity of contact between the cleaning brush and each portion of the floor surface to be brushed with at least some portions of floor surface closely adjacent to at least one of the boundaries of the vacuum cleanable floor surface, at least the frequency or the intensity of contact between the cleaning brush and each of the floor surface portions decreases as approaching the at least one boundary of the vacuum cleanable floor surface.
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Accused Products
Abstract
A robotic vacuum cleaner including a control system and a suction nozzle with a cleaning brush. The control system controls at least one of frequency and intensity of contact between the cleaning brush and each brushable portion of a floor surface to be cleaned such that at least one of the frequency and the intensity of contact between the cleaning brush and the floor surface decreases with a decrease of the distance to the at least one boundary of the floor surface.
11 Citations
12 Claims
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1. A robotic vacuum cleaner comprising:
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a suction nozzle with a cleaning brush arranged for contacting a floor; a drive and steering mechanism for providing mobility and steerability to at least the suction nozzle; at least one detector for determining boundaries of a vacuum cleanable floor surface; and a control system communicating with the at least one detector and with the drive mechanism for conducting the suction nozzle over the vacuum cleanable floor surface, wherein the control system is arranged for controlling at least frequency or intensity of contact between the cleaning brush and each portion of the floor surface to be brushed with at least some portions of floor surface closely adjacent to at least one of the boundaries of the vacuum cleanable floor surface, at least the frequency or the intensity of contact between the cleaning brush and each of the floor surface portions decreases as approaching the at least one boundary of the vacuum cleanable floor surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for robotic vacuum cleaning a floor surface, the method comprising acts of:
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passing a suction nozzle with a cleaning brush contacting the floor surface over the floor surface to be cleaned, under control of a control system communicating with at least one detector for determining at least one boundary of the floor surface to be cleaned, wherein the control system controls at least frequency or intensity of contact between the cleaning brush and each portion of the floor surface being brushed, such that, at least for some portions of floor surface closely adjacent to at least one of the boundaries of the vacuum cleanable floor surface, at least the frequency or the intensity of contact between the cleaning brush and each of the floor surface portions decreases as approaching the at least one boundary of the vacuum cleanable floor surface.
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Specification