Fire Detection and Location Through Inverse Problem Solution.
Fire Detection and Location Through Inverse Problem
Richards, R. F.; Plumb, O. A.
National Institute of Standards and Technology (NIST)
and Society of Fire Protection Engineers (SFPE).
International Conference on Fire Research and
Engineering (ICFRE). Proceedings. September 10-15,
1995, Orlando, FL, SFPE, Boston, MA, Lund, D. P.;
Angell, E. A., Editor(s)(s), 312-317 pp, 1995.
Sponsor:National Institute of Standards and Technology,
fire research; fire detection; fire detection systems;
fire models; algorithms
A prototype system which can detect, locate, and size an
accidental fire within the first few minutes of the
fire's ignition is presented. The prototype system
employs a black and white video camera to monitor
color-changing temperature sensitive sensors distributed
around the space to be protected. Transient
temperatures revealed by the sensors and gathered by the
video camera are used as data to locate and size the
fire in an algorithm based on the solution of an inverse
heat transfer problem. Limits on the accuracy of the
inverse problem solution algorithm, both in locating
fires and determining their heat release rate are
established using computer synthesized fire data. The
validity of the computer simulations is verified with
results of experimental tests of the prototype detection
system in locating and sizing flame sources in a lab