Smoke detection method with temperature and dust compensation

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.