Fire monitoring apparatus and computer readable medium recorded

Details Fire monitoring apparatus and computer readable medium recorded Fire monitoring apparatus and computer readable medium recorded

1997-07-14

1998-07-07

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

With particular system function

340578, 250554, G08B 2900

Patent

active

057775486

ABSTRACT:
A monitoring target plane is photographed with infrared-rays by each infrared-ray camera. A converter converts format of image data from each infrared-ray camera from analog format into digital format. A control unit, when detecting an abnormal area consisting of pixels having a density value over a fixed value in the image data, calculates an azimuth and an angle of elevation toward the sun from an abnormal location on the monitoring target plane that corresponds to that abnormal area, and judges that a fire occurs if an azimuth toward the abnormal location from the infrared-ray camera photographing the image data including the abnormal area is not coincident with the calculated azimuth toward the sun, or if an angle of depression toward the abnormal location from this infrared-ray camera is not coincident with the calculated angle of elevation toward the sun.

REFERENCES:
patent: 5486811 (1996-01-01), Wehrle et al.
patent: 5510772 (1996-04-01), Lasenby
patent: 5547369 (1996-08-01), Sohma et al.

Affiliated with

Also associated with

Rating

Fire monitoring apparatus and computer readable medium recorded 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 monitoring apparatus and computer readable medium recorded , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fire monitoring apparatus and computer readable medium recorded will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1210447