A Framework for Optimal Design of Alarm Systems
A Framework for Optimal Design of Alarm Systems
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DOI：
10.3182/20090630-4-es-2003.00108
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
I. Izadi;Sirish L. Shah;D. Shook;Sandeep R. Kondaveeti;Tongwen Chen
中科院分区：
文献类型：
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作者：
I. Izadi;Sirish L. Shah;D. Shook;Sandeep R. Kondaveeti;Tongwen Chen
摘要报警器用于工业工厂中，以通知操作员过程中的任何异常或故障。然而，在实践中，大多数警报是错误的或有害的警报，并且仅使操作者从过程的正常操作中分心。过滤过程数据、增加报警延迟和使用报警死区是简单的技术，如果使用得当，可以显著降低误报率和误报率。在本文中，我们调查这三种技术对报警系统的准确性和检测延迟的影响。我们还提出了一个框架，设计最佳的滤波器，时间延迟和死区，以减少误报率和漏报率。
Abstract Alarms are used in industrial plants to notify operators about any abnormality or fault in the process. In practice, however, a majority of alarms are false or nuisance alarms and only distract the operator from normal operation of the process. Filtering of process data, adding alarm delay and using alarm deadband are simple techniques that if utilized properly can reduce the false and nuisance alarm rate significantly. In this paper we investigate the effect of these three techniques on accuracy of the alarm system and detection delay. We also propose a framework for designing optimal filter, time delay and deadband to reduce false and missed alarm rates.