METHOD FOR PREVENTIVE FAILURE DETECTION IN THE DEVICE, COMPUTER PROGRAM, SYSTEM AND MODULE FOR PREVENTIVE FAILURE DETECTION IN THE DEVICE

摘要

1. A method for preventing failure detection in at least one observable device from the group comprising at least two devices, wherein this observable device has at least one first parameter (T4) correlated with at least one second parameter (T1, T2 , T3) of at least one second device in this group, wherein said observable device and the second device are redundant devices, said parameters representing state variables of said devices, the method is characterized in that it includes the following steps: A) predicting the value (T4) of the first parameter based only on the measured value of the second parameter (T1, T2, T3); B) comparing the predicted value (T4) of the first parameter with the measured value first parameter (T4); and C) analyzing the comparison result carried out in step B) to detect a correlation error that relates to potential failure. 2. The method according to claim 1, characterized in that the analysis of the comparison result carried out in step B) is to check whether there is a correlation error between the first parameter (T4) and the second parameter (T1, T2, T3) during t.3 . The method according to claim 1, characterized in that it further includes a step of diagnosing a type of failure if a potential failure is detected, the step being: performing at least one test of said observable device, analyzing the result of this test and comparing it in step B) stages of observation to determine the type of failure detected. 4. The method according to p. 3, characterized in that the diagnosis of the type of failure �