Autonomous coverage robot
US8972061B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2013 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Jun 14, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S901/01
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A mobile floor cleaning robot includes a robot body supported by a drive system configured to maneuver the robot over a floor surface. The robot also includes a cleaning system supported by the robot body, an imaging sensor disposed on the robot body, and a controller in communicates with the drive system and the imaging sensor. The controller receives a sequence of images of the floor surface; each image has an array of pixels. For each image, the controller segments the image into color blobs by color quantizing pixels of the image, determines a spatial distribution of each color of the image based on corresponding pixel locations; and for each image color, identifies areas of the image having a threshold spatial distribution for that color. The controller then tracks a location of the color blobs with respect to the imaging sensor across the sequence of images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.