Fire alarm device and method

摘要

A fire alarm device and method capable of informing people with visual and hearing difficulties of occurrence of fire. A fire detection means ( 1 ) detecting the occurrence of fire is connected to an emission control means ( 4 ). A smell emitting means ( 9 ) activated by the emission control means 4 is also connected to the emission control means ( 4 ). The fire detection means ( 1 ) activates the emission control means ( 4 ) when detecting the occurrence of fire. The emission control means ( 4 ) is provided with a smell condition-setting means so as to set starting time for continuously-emitted smell, and to set emission periods, emission intervals and emission concentrations for intermittently-emitted smell. The smell emitting means ( 9 ) will be activated in accordance with the conditions set by the smell condition-setting means.