Patent Document ID: 7949497
Application ID: 12077255
Patent Flag: 1

Claim One:
1. A method of machine condition monitoring comprising: receiving, at a computer, a condition signal, wherein the condition signal comprises an actual condition signal and a noise component; detecting, by the computer, a discontinuity in the condition signal; compensating, by the computer, for the discontinuity in the condition signal; and determining, by the computer, a trend of the compensated condition signal, wherein detecting a discontinuity in the condition signal comprises: (a) determining a probability of a discontinuity in the condition signal; (b) determining a conditional probability of the actual condition signal given the received condition signal; (c) determining a shifting factor; (d) determining a conditional probability of the actual condition signal given the received condition signal and the shifting factor of (c); (e) iteratively repeating (c) and (d); (f) selecting a maximum of the conditional probabilities of the actual condition signal given the received condition signal and the shifting factors; (g) determining a first discontinuity evaluation by multiplying the probability of no discontinuity in the condition signal with the conditional probability of the actual condition signal given the received condition signal; (h) determining a second discontinuity evaluation by multiplying the probability of a discontinuity in the condition signal with the conditional probability of the actual condition signal given the received condition signal; and (i) indicating a discontinuity in the condition signal only if the second discontinuity evaluation is greater than the first discontinuity evaluation.