Title:
PREDICTING METHOD FOR STATE VARIABLE
Document Type and Number:
Japanese Patent JPS57153304
Kind Code:
A
Abstract:
PURPOSE:To predict a state variable based on stored plant nonlinear characteristics in advance and a predicted value based on a main factor to fluctuation, by fetching a state variable of a predicted objective and the main factor to fluctuation. CONSTITUTION:In a state variable predicting device 1, a state variable 2 being a predicted objective is stored to a state variable storage section 12 via a state variable input section 11 and a fluctuation factor 3 to the state variable 2 is stored to a fluctuation main factor storage section 14 via a fluctuation factor input section 13 respectively. A part input value as well as an input value at present is stored to storage sections 12 and 14 as required. The fluctuation factor 3 can be predicted as a premise and a future value is predicted by a fluctuation main factor predicting section 15. A state variable predicting section 17 predicts a state variable based on this predicted value, a content of the section 12 and the nonlinear characteristics of a plant stored in a characteristic storage section 16.
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Inventors:
HASHIMOTO SHIGEO
Application Number:
JP3795481A
Publication Date:
September 21, 1982
Filing Date:
March 18, 1981
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G05B17/00; G05B13/02; (IPC1-7): G05B17/00