Abstract
Abstract Chattering alarms repeatedly make transitions between alarm and non-alarm states without response from operators, and severely deteriorate the performance of industrial alarm systems. Two rules are formulated based on the metrics of alarm durations and intervals to detect chattering alarms caused by random noise and oscillation. An online method is proposed to reduce the number of the chattering alarms via delay timers. Industrial examples are provided to illustrate the effectiveness of the formulated rules and the proposed method.
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