Control device for controlling a controlled apparatus, and a con

Details Control device for controlling a controlled apparatus, and a con Control device for controlling a controlled apparatus, and a con

1991-06-04

1995-07-04

Gordon, Paul P.

Boots, shoes, and leggings

364153, 364472, G05B 1302

Patent

active

054306426

ABSTRACT:
In order to control an apparatus, such as a rolling mill, a control device may use a pre-set operation pattern to generate a preset command signal, which is then modified. That first modification may be part of a feedback loop in dependence on the variation of a variable operation device of the apparatus, on a plurality of pre-set signals may be combined by fuzzy logic. Then the relationship between the modified pre-set command signal and the variation of the variable operation device is investigated to generate a compensation signal which is used to modify further the pre-set command signal. In a feedback loop, that further modification may compensate for changes in the operating point of the loop, due to changes in the apparatus being controlled. In a fuzzy logic arrangement, the compensation signal may be a further control pattern developed by the control device itself, which is combined with the pre-set patterns by fuzzy logic. The control device may be in the form of a series of modules.

REFERENCES:
patent: 4602326 (1986-07-01), Kraus
patent: 4715344 (1987-12-01), Tomisawa
patent: 4864490 (1989-09-01), Nomoto et al.
patent: 5043862 (1991-08-01), Takahashi et al.
patent: 5153807 (1992-10-01), Saito et al.
patent: 5166873 (1992-11-01), Takatsu et al.

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