| CPC G07C 3/12 (2013.01) [G06F 17/142 (2013.01)] | 6 Claims | 

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               1. A method for identifying abnormal operation of a machine, said method comprising: 
            generating a monitoring signal in response to behavior of said machine while said machine is in operation; 
                simultaneously monitoring two or more spectrums in said monitoring signal; 
                collecting waveform data for two or more spectrums at times when said machine is operating normally to establish an operational baseline of said machine; 
                identifying a respective energy level in each of the two or more spectrums; 
                processing waveform data corresponding to each of said identified energy levels into a Fast Fourier Transform radar plot; 
                determining an area that corresponds to the Fast Fourier Transform radar plot; 
                correlating changes in said area of said Fast Fourier Transform radar plot with changes in spectrum data and changes in the operation of said machine. 
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