Method and device for detecting fires

摘要

The present invention relates to a method and a device for detecting fires by angular scanning, from a point P dominating the area to be surveyed which surrounds it, the area being covered by a solid angle resulting from the revolution of the elevation aperture angle A delimited, for a given azimuth angle, by the two elevation angles Aa and Ab which are relative to the two extreme points to be monitored: the closest and the furthest from the said observation point. <IMAGE>