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Passive microwave system and method for protecting a structure from fire threats

  • US 9,123,220 B2
  • Filed: 06/20/2013
  • Issued: 09/01/2015
  • Est. Priority Date: 06/15/2007
  • Status: Active Grant
First Claim
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1. An integrated fire detection, protection and suppression system for one of a structure and a transporter comprisinga plurality at passive microwave receivers comprising at least one passive microwave directional receiver located for receiving passive microwave radiation emitted an area to be protected including the 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; and

    a fire protection system for protecting the one of the structure and the transporter from the one of the fuel fire, the motor fire and the electrical fire, the signal processor actuating the fire protection system for protecting the structure or the transporter responsive to the fire event signal output.

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