SYSTEMS AND METHODS FOR MULTI-WAVELENGTH SCATTERING BASED SMOKE DETECTION USING MULTI-DIMENSIONAL METRIC MONITORING

摘要

Systems and methods for smoke detection comprise using a multi-dimensional metric to dynamically track a slope of a relationship between the scattered light of multiple wavelengths. A multi-dimensional metric monitoring smoke detection algorithm (123) may use multi-dimensional thresholds with respect to the multi-dimensional metric for initiating a fire alarm and resetting the fire alarm. An optical measuring chamber (110) may be configured for providing multi-wavelength wide-scattering-angle scattering signals, which are used to derive the multi-dimensional metric for smoke detection, for example using a light trapping sub-chamber having a light guide diaphragm (410) assembly for the wide-scattering-angle signal collection.