Sky sensor device
US12120434B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2023 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Oct 19, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/4266
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sky sensor device for measuring direct normal illuminance (DNE) value is described. One method controls a camera sensor to capture a series of exposure-bracketed images having a first dynamic range and generate an image from the series of exposure-bracketed images, the image having a second dynamic range higher than the first dynamic range. The method controls an illuminance sensor to measure a global illuminance value. The method determines a global horizontal diffuse value based on at least the image. The method determines a direct normal illuminance (DNE) value using the global illuminance value and the global horizontal diffuse value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.