Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate
2004-10-29
2008-08-12
Lau, Tung S (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Performance or efficiency evaluation
Reexamination Certificate
active
07412350
ABSTRACT:
A fiber processing system including a refiner configured to process fibrous matter. The system further includes a plurality of measurement units coupled to the refiner to measure different operating conditions of the refiner, and a first control system coupled to the plurality of measurement units and configured to receive a plurality of operation conditions of the refiner from the plurality of measurement units. A processing unit is coupled to the control system and configured to estimate a production disturbance and a feed consistency disturbance of the refiner based on the plurality of operation conditions. The system also includes a second control system coupled to the processing unit and configured to generate a target operating condition based on the production disturbance and the feed consistency disturbance. The first control system is further configured to control an operation of the refiner based on the target operating condition.
REFERENCES:
patent: 6165317 (2000-12-01), Sabourin
patent: 6597959 (2003-07-01), Backa et al.
patent: 6752165 (2004-06-01), Johansson
patent: 6778936 (2004-08-01), Johansson
patent: 6892973 (2005-05-01), Johansson et al.
patent: 2005/0133643 (2005-06-01), Fernandez et al.
Merriam-Webster's dictionary Tenth edition, 1993. p. 431.
“On the Control of Chip Refining Systems”, J. Hill et al., Pulp & Paper Canada 94:6, 1993, p. 43-47.
“kajaaniTQA™ & TMP Control Solution Functional Description TQA330510 V1.0 EN”, Metso Automation, 2004, p. 1-26.
“A Practical Approach To The Control of TMP Refiners,” Roche et al., Proceedings of Control Systems 96, Halifax, Apr. 1996, pp. 129-135.
Ismo Joensuu et al, Fuzzy Quality Control of a TMP Plant, International Mechanical Pulping Conference 2001, pp. 513-521.
Lau Tung S
Metso Automation USA Inc.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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