Patent ID: 9664725
Date: 2017-05-30
CPC Classifications: G01R,G05B,G06F

Claim:
1. A method of preventive detection of a fault in at least a first device of a group comprising the first device and at least one second device, the first device having at least one first parameter correlated with at least one second parameter of the at least one second device, the first device and the at least one second device being redundant devices, said parameters representing state variables of said first device and at least one second device, wherein the method includes the following steps: A) predicting a value of the first parameter from only a measured value of the at least one second parameter; B) comparing the predicted value of the first parameter with a measured value of the first parameter; and C) analyzing the result of the comparison effected in the step B) to detect a correlation error that relates to a potential fault.