Marine lantern controlled by GPS signals
US7798669B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2007 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Dec 20, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A remotely adjustable lighting device configured to an operational mode customized for the geographic location of the device. The lighting device is powered by a battery provided with solar charging. The lighting device, under control of an integral controller, is turned off and on for an illumination period as a function of both local sunrise and sunset times determined by a combination of time and date information and GPS positioning. The luminosity of the lighting device is autonomously controlled as a function of battery charge and the determined required illumination period. The solar charging system is oriented by the controller to optimize its energy collection by periodical adjustments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.