Smoke detection method with temperature and dust compensation
US12272231B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2023 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Oct 19, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B29/145
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A smoke detection method with temperature and dust compensation includes providing a smoke detector that generates reading values; providing a database that stores smoke-free reference values at every temperature or at every few temperatures in a working range of temperatures, differences between the reading values and corresponding smoke-free reference values being used to detect smoke; obtaining smoke-free reference values at a current temperature from the database if temperature changes; and performing temperature learning to obtain smoke-free reference values if the smoke-free reference values do not exist in the database or when dust is detected for at least one time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.