Floor cleaning robot and method of controlling same
US5402051A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1993 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Mar 23, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/04
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A robot for cleaning a floor of a railroad vehicle has a robot body equipped with a cleaning mechanism and includes a travel mechanism controllable for locomotion in a desired direction. The robot also includes a distance detecting arrangement directed at least toward the front and opposite sides of the robot body for measuring the distance to an obstacle or a wall, and a map storing arrangement which has stored therein a cleaning region of the floor previously as a two-dimensional map. The robot also includes a path storing arrangement which has stored therein a predetermined path of travel for cleaning the floor as expressed in coordinates on the map. A first control arrangement is provided for recognizing the coordinates of the position of the robot body on the map based on outputs from the distance detecting arrangement when the robot body is placed at an end portion of the floor. A second control arrangement is also provided for correcting the course of the robot body based on outputs from the distance detecting arrangement while the robot body travels from the coordinate position recognized by the first control arrangement along the predetermined path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.