Patent ID: 7746236

Claim:
A method of monitoring a target environment for indications of a fire, the method comprising steps of: obtaining via a detector a first plurality of data points corresponding to a plurality of spatially arranged locations of a first portion of the target environment, wherein each of the first plurality of data points are related to a temperature value; obtaining a second plurality of data points corresponding to the plurality of spatially arranged locations of the first portion of the target environment, wherein each of the second plurality of data points are related to a temperature value, the second plurality of data points being temporally spaced in time from the first plurality of data points; obtaining a third plurality of data points corresponding to a plurality of spatially arranged locations within a second portion of the target environment, wherein each of the third plurality of data points are related to a temperature value, the third plurality of data points obtained after the first plurality of data points but before the second plurality of data points; identifying a change in temperature from the first plurality of data points and the second plurality of data points.