Methods and apparatus for fault detection

摘要

In some embodiments, a method includes receiving, at a data collection module implemented in at least one of a memory or a processing device, from a processing system, an observation value for a variable. The observation value of the variable is associated with operation of the processing system at a time. The method further includes computing a deviation value of the variable from a baseline value at the time based on the observation value. The method further includes computing a stableness value of the variable at the time based on the baseline value and a variance of the variable during a time period including the time. The method further includes transmitting an indication of the processing system as operating with a fault in response to the deviation value meeting a first criterion and the stableness value meeting a second criterion.

主权项

1. A method, comprising:
receiving, at a data collection module implemented in at least one of a memory or a processing device, from a processing system, an observation value for a variable, the observation value of the variable associated with operation of the processing system at a time; computing a deviation value of the variable from a baseline value at the time based on the observation value; computing, after receiving a predetermined number of observation values of the variable, a stableness value of the variable at the time based on the baseline value and a variance of the variable during a time period including the time; and transmitting an indication of the processing system as operating with a fault in response to the deviation value meeting a first criterion and the stableness value meeting a second criterion.