Flame detection system and method
US9530074B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 12, 2014 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Dec 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B29/28
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A hazard detection system measures a color and intensity of a portion of an image of a scene. The image is obtained using a known gain and/or exposure such that the image substantially lacks any saturation. A black body brightness temperature and the corresponding block body intensity are determined based on the measured color. A hazard condition, such the presence of a flame, can be detected using a comparison of the measured intensity and the computed intensity. The gain and/or exposure can be selected such that only the pixels of intensity greater than a certain threshold generally saturate in the captured image. Hazard conditions, such as smoke, can be detected using images in which selective saturation is permitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.