Fire alarm device

Details Fire alarm device Fire alarm device

1995-05-16

1997-09-23

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340511, 340588, 340589, G08B 2900

Patent

active

056709382

ABSTRACT:
In a fire alarm device for detecting the physical quantities of substances arising from the outbreak of a fire and giving a fire alarm, membership functions showing the correlation between an arising quantities calculated by the detected physical quantities and the danger degree which a man would feel with respect to the physical quantities are preset, the danger degree with respect to the arising value calculated by the physical quantities actually detected by a detection means is obtained by using the membership functions, and an alarm and control in accordance with the danger degree is given. Therefore, there is provided a fire alarm device capable of judging the outbreak of a fire based on an actual fire situation and giving an alarm and control in accordance with the degree of danger which a man would feel with respect to the scale, situation and so on of the fire.

REFERENCES:
patent: 4749987 (1988-06-01), Ishii
patent: 4884222 (1989-11-01), Nagashima et al.
patent: 5168262 (1992-12-01), Okayama
patent: 5260687 (1993-11-01), Yamauchi et al.

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