| The project FOGO
(FIRE, Early detection of forest fires by analysis of retroreflected
laser radiation - lidar), supported by the Program POSI/Measure
1.3, was aimed at the lidar instrumentation specially designed
for forest-fire detection, operating with the eye-safe laser
radiation and relying on neural-network and fuzzy logic algorithms
for automatic alarming and rejection of spurious signals.
The project included tasks of modelling and design, field
tests, development of algorithms for rapid lidar-signal inversion,
construction and training of neural networks as well as development
and testing of a laboratory prototype of the smoke detector.
Several field tests of the lidar instrument were carried out
in order to optimise the detector and software operation.
Training sets were recorded and the artificial-intelligence
algorithms maximising the detection efficiency and minimising
the false alarm rate were introduced into the command unit
software. The results obtained were widely disseminated through
technical and scientific publications and participation in
national and international exhibitions.
The lidar technology of forest-fire detection is patented
by INOV.
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