Fire alarm system

Details Fire alarm system Fire alarm system

1986-07-14

1989-02-07

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340511, 340628, G08B 1706

Patent

active

048034690

ABSTRACT:
A fire alarm system which comprises one or more detecting sections for detecting a change in the surrounding phenomena due to a fire in an analog form; a storing section for storing the analog data output from the detecting section or sections; a level comparing section for comparing a data level represented by present instantaneous analog data output from the detecting section or sections and a predetermined level; fire judging instructing section which extracts a plurality of data stored during a predetermined period of time back to from the time when a comparison signal is obtained from the level comparing section, calculates a change amount between the respective extracted data and generates an output for initiating the calculation when the number of the calculated change amounts exceeding a predetermined amount exceeds a predetermined number; and a fire judging section for receiving the data stored in the storing section in response to the signal from the comparing section and/or fire judging instructing section to judge a fire.

REFERENCES:
patent: 4151522 (1979-04-01), Yamauchi
patent: 4459583 (1984-07-01), van der Walt et al.
patent: 4514720 (1985-04-01), Oberstein et al.
patent: 4517554 (1985-05-01), Moser et al.
patent: 4644331 (1987-02-01), Matasushita et al.
patent: 4665390 (1987-05-01), Kern et al.

Affiliated with

Also associated with

Rating

Fire alarm system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fire alarm system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fire alarm system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1086963