Predictive control of rolling mills using neural network gauge estimation
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United States of America Patent
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Dec 17, 1996
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N/A
app pub date -
Jul 1, 1994
filing date -
Jul 1, 1994
priority date (Note) -
Expired
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Abstract
A system for controlling the output of a rolling mill. An intelligent control system is part of a control loop between the mill and a PID controller. The control loop does not rely on the output of an exit gauge sensor in normal operation. The intelligent control system can be an artificial neural network or a parallel cascade network, and has an output node for generating an output signal that is predictive of the exit gauge at a future time. A comparator coupled to the artificial neural network output signal and to a reference signal derives an error signal which is fed to the PID controller for modulating the metal thickness.
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