Lighting device, method of controlling the same, and lighting system
US9060394B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2014 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Apr 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/19
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device which includes: a light source; a receiving unit which receives a control signal from outside the lighting device via wireless communication; and a control unit which causes the light source to emit light according to the control signal received by the receiving unit. When the receiving unit receives, from the outside the lighting device via the wireless communication, a test signal different from the control signal and for determining a state of the wireless communication, the control unit calculates a packet error rate of the test signal received by the receiving unit and causes the light source to emit light such that an emission state is changed according to a communication quality of the wireless communication determined based on at least the calculated packet error rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.