Title:
多変量プロセスのコントロール
Document Type and Number:
Japanese Patent JP4156934
Kind Code:
B2
Abstract:
Control of a multi-variable process involves multi-dimensional representation of the values (Qa-Qh) of the process variables according to individual coordinate axes (Xa-Xh), and response based on sets of values for the process-variables accumulated from multiple, earlier operations of the process. An acceptable range (UL-LL) for each process variable due to the current values of the other variables is defined from the accumulated values, and the existence of an alarm condition in which the current value (Qg) of a variable lies outside the range defined for it, is detected and displayed (UC) on the relevant axis (Xg). The change of the values (Qa,Qb) of one or more of the manipulatable variables (a-c) required to rectify the alarm condition is determined iteratively, and implemented by operator or automated response.
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Inventors:
Brooks, Robin William
Wilson, John Gavin
Soap, Richard John
Wilson, John Gavin
Soap, Richard John
Application Number:
JP2002591923A
Publication Date:
September 24, 2008
Filing Date:
May 08, 2002
Export Citation:
Assignee:
Carvasias Software Limited
International Classes:
G05B13/02; G05B15/02; G05B19/02; G05B19/418; G05B21/02; G05B23/02; G06T11/20
Foreign References:
| US5949678 | ||||
| US5917500 | ||||
| EP0453817A1 | ||||
| EP0753283A1 |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Ryu Kobayashi
Masaya Nishiyama
Jun Tsuruta
Tetsuro Shimada
Ryu Kobayashi
Masaya Nishiyama