Patent ID: 8547238

Claim:
A system for discriminating between a fire event and a false fire event comprising, a first radiation detecting structure having a first field of view and configured for transmitting a first signal that is generated in response to detection of a potential fire event by the first radiation detecting structure, a second radiation detecting structure having a second field of view and being operationally redundant to the first radiation detecting structure and configured for transmitting a second signal that is generated in response to detection of the potential fire event by the second radiation detecting structure, and an electronic assembly configured for (i) receiving the first signal and at least one other signal generated in response to detection of the potential fire event and calculating a first output based thereon, (ii) determining whether the first output satisfies a first predetermined flame-presence criteria for indicating a fire event, (iii) receiving the second signal and calculating a second output based on the second signal and the at least one other signal, (iv) determining whether the second output satisfies a second predetermined flame-presence criteria for indicating a fire event, and (v) transmitting a fire alarm command signal to a fire extinguishing system when both the first output satisfies the first predetermined flame-presence criteria and the second output satisfies the second predetermined flame-presence criteria, wherein the first field of view and the second field of view overlap and the first radiation detecting structure and the second radiation detecting structure are supported within a dedicated housing.