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Fire Detection Using Time Series Analysis of Source Temperatures.


pdf icon Fire Detection Using Time Series Analysis of Source Temperatures. (962 K)
Sivathanu, Y. R.; Tseng, L. K.

Fire Safety Journal, Vol. 29, No. 4, 301-315, November 1997.

Sponsor:

National Institute of Standards and Technology, Gaithersburg, MD

Keywords:

fire detection; source temperature; test fires

Abstract:

The evaluation of a near-infrared fire detector using standard test fires is presented. The spectral radiation intensities incident on the fire detector are continuously measured at two near-infrared wavelengths (900 and 1000 nm), and a time series of apparent source temperatures is obtained from these measurements. The power spectral density and the probability density function of the apparent source temperatures are sufficient to determine the presence of a fire in the vicinity of the detector. The detector can also indicate the presence of a fire in an adjoining room from the radiation which is incident on it due to reflections from common building materials.