Title:
METHOD AND DEVICE FOR DISPLAY OF TREND OF ESTIMATED VALUE IN ESTIMATION CONTROL
Document Type and Number:
Japanese Patent JPH03245203
Kind Code:
A
Abstract:
PURPOSE:To display the estimated value corrected for each control period of the estimation control on a trend screen by applying the linear compensation to the value to be estimated in the future on a discrete time base and then rewriting the estimated value based on the interpolated value. CONSTITUTION:An estimated value generagtng part 4 works in the execution timing of the estimation control and generates the new estimated value with the optimum correction of a Kalman filter. A linear interpolation part 5 applies a proper linear interpolation to the estimated value, and an arithmetic part 1 writes the interpolated value accordant with a scale of a trend memory 2 into this memory. Thus the immediately precedent trend data are all rewritten. Then the display screens of a CRT 3 are successively shifted and the estimated value is displayed. Thus it is possible to display the estimated value corrected for each control period of the estimation control on a trend screen.
Inventors:
KIKUTANI ATSUKO
SHIMIZU HIROSHI
SHIMIZU HIROSHI
Application Number:
JP4297590A
Publication Date:
October 31, 1991
Filing Date:
February 23, 1990
Export Citation:
Assignee:
YAMATAKE HONEYWELL CO LTD
International Classes:
G05B13/04; G05B13/02; (IPC1-7): G05B13/02; G05B13/04
Domestic Patent References:
| JPS58223808A | 1983-12-26 | |||
| JPS5882310A | 1983-05-17 |
Attorney, Agent or Firm:
Susumu Hori (1 person outside)