Fire alarm system

Details Fire alarm system Fire alarm system

1985-08-12

1989-01-03

Chin, Gary

Boots, shoes, and leggings

364185, 340518, 340521, 340577, 340589, 340628, G08B 1700, G06F 1130

Patent

active

047962054

ABSTRACT:
A fire alarm system which makes fire determination based on a novel idea which considers various changes of the physical phenomena in the surroundings caused in relation with the occurrence of a fire in terms of changes of vectors. These changes in the physical phenomena are detected by the detecting section in the form of analog data and processed by a data sampling section as sampled data and stored in a storing section in such a manner as discriminating them by the detecting sections. The tendencies of the changes are computed in a first computing section and the vectors representing the present or future conditions of the physical phenomena are computed from the sampled data. The vector is compared in a comparing section with a preliminarily set data related to the fire detection and when the relation therebetween is not a predetermined one, an alarm is given through an alarming section.

REFERENCES:
patent: 3924252 (1975-12-01), Duston
patent: 4254414 (1981-03-01), Street et al.
patent: 4423326 (1983-12-01), Ball
patent: 4496817 (1985-01-01), Smith
patent: 4581604 (1986-04-01), Kimura et al.
patent: 4592000 (1986-05-01), Ishizaka et al.

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