Patent ID: 8314694
Filing Date: 2012-11-20
Classification: H04L

Abstract:
1. An alarm system capable of suppressing redundant alarms, the alarm system comprising: at least one process control unit for detecting system anomalies and generating alarms corresponding to the detected system anomalies; a Fault Diagnosis and Isolation (FDI) unit for diagnosing a plurality of system failures, the FDI unit capable of generating a failure-cause-effect graph comprising alarms corresponding to at least one cause and at least one effect of each of a plurality of diagnosed system failures; a filter coupled to the FDI unit and the process control unit, the filter receiving alarms generated by the at least one process control unit and the failure-cause-effect graph generated by the FII unit, and the filter managing alarms based upon the identification of redundant alarms and not-yet-classified alarms using the generated failure-cause-effect graph, wherein an alarm corresponding to a detected anomaly is identified as a not-yet-classified alarm if the alarm corresponding to the detected anomaly is not listed in the failure-cause-effect graph; and at least one alarm display unit coupled to the filter, the alarm display unit displaying the identified not-yet-classified alarms and non-redundant alarms, wherein the generated redundant alarms are suppressed by the filter from being displayed by the at least one alarm display unit.