Title:
制御ループのプロセス利得に関連する異常状況を検出するためのシステムおよび方法
Document Type and Number:
Japanese Patent JP2008503012
Kind Code:
A
Abstract:
In a method for monitoring a control loop in a process plant, process gain data associated with a control loop may be collected. The collected process gain data may be used to determine an expected process gain behavior. For example, expected values of a process variable for given values of a load variable may be determined. As another example, expected changes in a process variable for given changes in a load variable may be determined. Then, during operation of the control loop, the process gain may be monitored. If the monitored process gain substantially deviates from the expected behavior, this may indicate an abnormal situation associated with the control loop.
Inventors:
Sharpe, Joseph H. Jr.
Application Number:
JP2007527748A
Publication Date:
January 31, 2008
Filing Date:
June 09, 2005
Export Citation:
Assignee:
Fisher-Rosemount Systems, Inc.
International Classes:
G05B23/02
Attorney, Agent or Firm:
Patent business corporation Yuko patent office