论文信息 - A method to remove chattering alarms using median filters.

A method to remove chattering alarms using median filters.

Chattering alarms are the most found nuisance alarms that will probably reduce the usability and result in a confidence crisis of alarm systems for industrial plants. This paper addresses the chattering alarm reduction using median filters. Two rules are formulated to design the window size of median filters. If the alarm probability is estimated using process data, one rule is based on the probability of alarms to satisfy some requirements on the false alarm rate, or missed alarm rate. If there are only historical alarm data available, the other rule is based on percentage reduction of chattering alarms using alarm duration distribution. Experimental results for industrial cases testify that the proposed method is effective.

Wen Tan | Tongwen Chen | Yongkui Sun

[1] Nina F. Thornhill,et al. A continuous stirred tank heater simulation model with applications , 2008 .

[2] Kenneth E. Barner,et al. 21 Order-statistic filtering and smoothing of time-series: Part II , 1998 .

[3] Alan J. Hugo,et al. Estimation of Alarm Deadbands , 2009 .

[4] Tongwen Chen,et al. An online method to remove chattering and repeating alarms based on alarm durations and intervals , 2014, Comput. Chem. Eng..

[5] Hyun Wook Park,et al. Adaptive 3-D median filtering for restoration of an image sequence corrupted by impulse noise , 2001, Signal Process. Image Commun..

[6] Tongwen Chen,et al. An online method for detection and reduction of chattering alarms due to oscillation , 2013, Comput. Chem. Eng..

[7] B I Justusson,et al. Median Filtering: Statistical Properties , 1981 .

[8] Sirish L. Shah,et al. A Framework for Optimal Design of Alarm Systems , 2009 .

[9] Sirish L. Shah,et al. Quantification of alarm chatter based on run length distributions , 2013 .

[10] Iman Izadi,et al. Estimation of alarm chattering , 2011 .

[11] Sirish L. Shah,et al. Quantification of alarm chatter based on run length distributions , 2010, 49th IEEE Conference on Decision and Control (CDC).

[12] Sirish L. Shah,et al. On the use of delay timers and latches for efficient alarm design , 2011, 2011 19th Mediterranean Conference on Control & Automation (MED).