| 摘要 |
Monitoring of a system (10) is disclosed, in particular to identify the cause of conditions outside expected operating conditions. The output of one or more sensors (11,12,13) associated with a system (10) is monitored (40) and data from the one or more sensors is arranged (50) as a plurality of modes (101,102) with each mode being defined by a different condition in which the system may operate, such as different ambient conditions, variations in the physical configuration of the system and different operating conditions. Faulty conditions are identified (60) by monitored data being outside one of the plurality of modes. The use of a plurality of modes enables operation of the system to be defined and tracked more precisely so that operation of the system outside expected parameters may be detected more precisely and false alarms may be reduced. At least one of the modes may be established to indicate a particular failure of the system. This failure mode may have a likely cause of the failure associated with it such that diagnosis and repair may be facilitated quickly and easily. |
