Global Patent Index - EP 1025471 A1

EP 1025471 A1 2000-08-09 - METHOD FOR DETERMINING STATIONARY STATES IN A TECHNICAL PROCESS

Title (en)

METHOD FOR DETERMINING STATIONARY STATES IN A TECHNICAL PROCESS

Title (de)

VERFAHREN ZUR BESTIMMUNG VON STATIONÄREN ZUDSTÄNDEN EINES TECHNISCHEN PROZESSES

Title (fr)

PROCEDE DE DETERMINATION D'ETATS STATIONNAIRES D'UN PROCESSUS TECHNIQUE

Publication

EP 1025471 A1 (DE)

Application

EP 98955384 A

Priority

  • DE 9802981 W
  • DE 19747400 A

Abstract (en)

[origin: WO9922280A1] The invention relates to a method enabling simple analysis of measuring signal characteristics in complicated processes with respect to stationary states. Said signal characteristics (M100) are detected as a function of time and are approximated using Haar wavelets. All measuring signals are analysed in order to determine whether they are constant during the same time period for several minimum Haar wavelet periods, which is subsequently defined as a stationary state (SZ) in said process. These time periods are retained and the stationary state data is fed to a function approximator which simulates the measured process. With this model, measured variables (resulting in dependencies with large time constants) can be transformed in a rational manner into manipulated variables to provide the desired target parameters for said process.

IPC 1-7 (main, further and additional classification)

G05B 23/02

IPC 8 full level (invention and additional information)

G05B 23/02 (2006.01)

CPC (invention and additional information)

G05B 23/0202 (2013.01)

Citation (search report)

See references of WO 9922280A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 9922280 A1 19990506; EP 1025471 A1 20000809; JP 2001521238 A 20011106

INPADOC legal status


2003-11-05 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030501

2000-08-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000417

2000-08-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB