Title:
CONTROL DEVICE
Document Type and Number:
Japanese Patent JPS60108909
Kind Code:
A
Abstract:
PURPOSE:To consider a countermeasure for an objective phenomenon before the generation of the phenomenon by operating the movement of an input signal on the basis of sampled data, forecasting the movement and outputting a control output before the generation of the objective phenomenon. CONSTITUTION:Supposing that a high forecasting value exists between sample values obtained by sampling input signals and A/D converting the sampled input signals by an A/D converter 1 on the basis of correlation, the formula 1 is adopted from linear primary coupling. In the formula 1, the future sampling value Xn of the input signal can be made to approximate to a value obtained by multiplying P sampling values prior to the future sampling value Xn by a factor alphai. Under a condition minimizing the average of the square of the linear forcasting error, the linear forcasting factor alphai (i=1-p) is found out. Actually, blind data are formed from the finite number N of actually measured data to find out the coefficient of correlation. Thus, the future sampling value can be found out from the linear forecasting factor alphai.
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Inventors:
TAKINAMI KOUJI
Application Number:
JP21697983A
Publication Date:
June 14, 1985
Filing Date:
November 16, 1983
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO
International Classes:
G05B21/02; G05B15/02; (IPC1-7): G05B21/02
Domestic Patent References:
| JPS53120061A | 1978-10-20 | |||
| JPS5543661A | 1980-03-27 | |||
| JPS5530752A | 1980-03-04 | |||
| JPS58207107A | 1983-12-02 |