Title:
PLANT DIAGNOSING DEVICE
Document Type and Number:
Japanese Patent JPS585808
Kind Code:
A
Abstract:
PURPOSE:To obtain a forecasting message simply and precisely by finding the coefficient of status variation at the detection of plant troubles and approximately forecasting the status to be generated subsequently on an assumption that the status is changed based upon the found coefficient of variation. CONSTITUTION:A forecasting message circuit 31 is connected to the output terminal of a two-input AND gate 24. The forecasting message circuit 31 finds the coefficient of variation of sealed oil differential pressure when outputs of a supplied oil pressure detector continue to be decreased at the detection of a low output from a sealed oil differential pressure detector and, afterwards, outputs a forecasting message after passing the starting time of an emergency sealed oil pump on the assumption that sealed oil differential pressure is decreased based upon the found coefficient of variation.
Inventors:
TOKURA TAKEHIKO
Application Number:
JP10405181A
Publication Date:
January 13, 1983
Filing Date:
July 01, 1981
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G05B23/02; (IPC1-7): G05B23/02
Attorney, Agent or Firm:
Shinichi Kusano
Next Patent: NON-CALCINED MAGNESIA-DOLOMITE-CARBON BRICK