System and method for returning robot cleaner to charger
US7729803B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2006 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Dec 7, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0242
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system for returning a robot to a charger includes: a homing signal transmitter, including at least first, second, and third signal transmitters, each adapted to be provided at a front side of the charger and to respectively transmit signals which are different from each other in at least one of a code and a transmission distance, and a fourth signal transmitter, adapted to be provided on at least one lateral side of the charger and to transmit a signal which is different from the signals of the first, second, and third transmitters in code; a homing signal receiver provided at the robot and to receive at least one signal transmitted from the homing signal transmitter; and a controller adapted to identify the at least one signal and to control the robot to return to the charger based at least in part on the at least one signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.