SYSTEM OCH FOERFARANDE FOER ATT UPPTAECKA LAOGOR.

摘要

A system and method for detecting a fire source in a supervised region by means of fire detectors which effectively scan all over such region. A plurality of reference fire sources of the same geometric shape of the minimum size to be regareded as a fire are assumed to be located in successive predetermined position on the floor of the supervised region. Vertical control means successively sets the vertical deflection angles of each detector along the respective straight lines from each detector which graze by the upper end of the respective fire sources and to the lower end of the succeeding fire source. The system also comprises horizontal control means for causing the detectors to horizontally scan the supervised region. Upon detection of a fire, the detectors provide fire detection signals to a central processor unit which then actuates a spray nozzle to direct fire extinguishing fluid on the fire.