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Publication numberWO2002003152 A3
Publication typeApplication
Application numberPCT/US2001/020218
Publication date25 Jul 2002
Filing date27 Jun 2001
Priority date29 Jun 2000
Also published asCA2414707A1, CA2414707C, CA2696152A1, DE60102242D1, DE60102242T2, EP1295185A2, EP1295185B1, EP1295185B9, US7330804, US7630868, US8296107, US20020072828, US20080071394, US20100057222, WO2002003152A2
Publication numberPCT/2001/20218, PCT/US/1/020218, PCT/US/1/20218, PCT/US/2001/020218, PCT/US/2001/20218, PCT/US1/020218, PCT/US1/20218, PCT/US1020218, PCT/US120218, PCT/US2001/020218, PCT/US2001/20218, PCT/US2001020218, PCT/US200120218, WO 0203152 A3, WO 0203152A3, WO 2002/003152 A3, WO 2002003152 A3, WO 2002003152A3, WO-A3-0203152, WO-A3-2002003152, WO0203152 A3, WO0203152A3, WO2002/003152A3, WO2002003152 A3, WO2002003152A3
InventorsJohn P Guiver, Brian Lines, S Steven Treiber, Paul Turner
ApplicantAspen Technology Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: Patentscope, Espacenet
Computer method and apparatus for constraining a non-linear approximator of an empirical process
WO 2002003152 A3
Abstract
A constrained non-linear approximator for empirical process control is disclosed. The approximator contains the behavior of the derivative of a subject empriical model without adversely affexting the ability of the model to represent generic non-linear relationships. There are threee stages to developing the constrained non-linear approximator. The first stage is the specification of the general shape of the gain trajectory or base non-linear function which is specified graphically, algebraically or generaiclly and is used as the basis for transfer functions used in the second stage. The second stage of the invention is the interconnection of the transfer functions to allow non-linear approxiamtion. The final stage of the invention is the constrained optimization of the model coefficients such that the general shape of the input/output mappings (and their corresponding derivatives) are conserved.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
WO1997012300A1 *25 Sep 19963 Apr 1997Boiquaye William J N OAdaptive control process and system
WO1999014642A1 *11 Sep 199825 Mar 1999Cambridge Consultants LimitedMachine controller calibration process
DE19824433A1 *30 May 19982 Dec 1999Ziemann Gmbh Maschinenfabrik AProcess and assembly to drain wort from a lauter tun in a beer brewing
US5675253 *16 Jan 19967 Oct 1997Auburn International, Inc.Partial least square regression techniques in obtaining measurements of one or more polymer properties with an on-line nmr system
US5687090 *27 Jun 199611 Nov 1997Aspen Technology, Inc.Polymer component characterization method and process simulation apparatus
US5740033 *13 Oct 199214 Apr 1998The Dow Chemical CompanyModel predictive controller
US6047221 *3 Oct 19974 Apr 2000Pavilion Technologies, Inc.Method for steady-state identification based upon identified dynamics
Classifications
International ClassificationG05B13/04, G06N3/00, G05B13/02, G05B17/02
Cooperative ClassificationG05B17/02, G05B13/027
European ClassificationG05B13/02C1, G05B17/02
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