Direction device and operation system utilizing the same
US9089249B2 · kind B2 · utility
4Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2011 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Nov 8, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/04
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A direction device controlling a traveling route of a cleaning robot and including a receiving unit, an emitting unit and a control unit is disclosed. The receiving unit receives an encoded ultrasonic wave emitted by the cleaning robot. The emitting unit emits at least one wireless signal. The control unit activates the emitting unit to emit a first direction wireless signal when the receiving unit receives the encoded ultrasonic wave. The cleaning robot passes according to the first direction wireless signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.