Patent ID: 8493212

Claim:
An integrated fire detection, protection and suppression system for a glass structure comprising a plurality of passive microwave receivers comprising at least one directional receiver located for receiving passive microwave radiation emitted in an area to be protected including the glass structure, the passive microwave receivers operating within a range of microwave frequencies protected from active transmission in a geographic area encompassing a location of said plurality of passive microwave receivers and for outputting an electrical signal proportional to a passively received level of microwave radiation at a given time; a signal processor for receiving the electrical signal output of the plurality of passive microwave receivers and for comparing the received electrical signal output with a reference level and with characteristic fire event signature data and outputting a signal indicating a fire event responsive to the comparison; a memory connected to the signal processor for storing the characteristic fire event signature data for one of a fuel fire, a motor fire, and an electrical fire; a sprinkler system for protecting the glass structure, the data processor actuating the sprinkler system for protecting the glass structure responsive to the fire event signal output.