Autonomous surface cleaning robot for wet and dry cleaning
First Claim
Patent Images
1. A robot comprising:
- a differential drive system along a lateral axis of the robot;
a supply volume that stores cleaning liquid;
at least one spray nozzle that applies the cleaning liquid to a surface;
a pump assembly that moves the cleaning liquid from the supply volume to the at least one spray nozzle;
a bumper comprising;
a first sensor on a first portion of the bumper, the first sensor being configured to generate a first signal; and
a second sensor on a second portion of the bumper, the second sensor being configured to generate a second signal; and
a controller configured to;
operate the differential drive system to maintain contact between the bumper and a wall surface, in response to receiving the first signal, the second signal, or both the first signal and the second signal, while advancing the robot over the surface in a forward direction.
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Abstract
An autonomous floor cleaning robot includes a transport drive and control system arranged for autonomous movement of the robot over a floor for performing cleaning operations. The robot chassis carries a first cleaning zone comprising cleaning elements arranged to suction loose particulates up from the cleaning surface and a second cleaning zone comprising cleaning elements arraigned to apply a cleaning fluid onto the surface and to thereafter collect the cleaning fluid up from the surface after it has been used to clean the surface. The robot chassis carries a supply of cleaning fluid and a waste container for storing waste materials collected up from the cleaning surface.
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Citations
17 Claims
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1. A robot comprising:
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a differential drive system along a lateral axis of the robot; a supply volume that stores cleaning liquid; at least one spray nozzle that applies the cleaning liquid to a surface; a pump assembly that moves the cleaning liquid from the supply volume to the at least one spray nozzle; a bumper comprising; a first sensor on a first portion of the bumper, the first sensor being configured to generate a first signal; and a second sensor on a second portion of the bumper, the second sensor being configured to generate a second signal; and a controller configured to; operate the differential drive system to maintain contact between the bumper and a wall surface, in response to receiving the first signal, the second signal, or both the first signal and the second signal, while advancing the robot over the surface in a forward direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification