Filter in DCS control system, control method and DCS control system

A historical measured value is adopted to be compared with a measured value at the current moment to determine whether a sudden change occurs; if the sudden change is determined to occur, a switching mode is executed to replace the measured value with the historical measured value for output; after...

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Bibliographische Detailangaben
Hauptverfasser:	DENG Honggang, BAI Bin, JI Yansheng, DONG Linyang, ZHONG Longhai, PAN Houlin, TANG Jianhui, YU Jun, YAN Wei
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A historical measured value is adopted to be compared with a measured value at the current moment to determine whether a sudden change occurs; if the sudden change is determined to occur, a switching mode is executed to replace the measured value with the historical measured value for output; after a certain period of time, the switching mode is recovered to a normal mode to output the measured value, So that that filter of the occasional fluctuation is realized, the filter effect is good, the influence of the measured mutation value is effectively eliminated, and a protection mechanism based on a measured value is still provide.