Title:
PLANT FACILITY ABNORMALITY DIAGNOSTIC DEVICE
Document Type and Number:
Japanese Patent JP2015072512
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus for determining states of a plurality of devices constituting a plant facility to diagnose plant abnormality.SOLUTION: A plant abnormality diagnostic apparatus includes: a device state value input unit for successively inputting a state value indicating a state of each device constituting a plant facility; a correlation coefficient calculation unit for calculating a state value correlation coefficient between the devices from each device state value in a predetermined period; and an abnormality determination unit for determining that abnormality has occurred in the plant facility when the state value correlation coefficient is out of an allowable range set in advance.
Inventors:
HASUIKE YUICHIRO
ONISHI MICHIO
MORIOKA HAJIME
ONISHI MICHIO
MORIOKA HAJIME
Application Number:
JP2013206632A
Publication Date:
April 16, 2015
Filing Date:
October 01, 2013
Export Citation:
Assignee:
OSAKA GAS CO LTD
International Classes:
G05B23/02
Domestic Patent References:
| JP2006039786A | 2006-02-09 | |||
| JP2009245137A | 2009-10-22 | |||
| JP2011089925A | 2011-05-06 | |||
| JP2013041173A | 2013-02-28 | |||
| JP2011243118A | 2011-12-01 | |||
| JPH08320726A | 1996-12-03 | |||
| JP2000298511A | 2000-10-24 |
Foreign References:
| WO2010110021A1 | 2010-09-30 |
Attorney, Agent or Firm:
Shuichiro Kitamura
Ichiro Miyake
Kunihiko Higashi
Ichiro Miyake
Kunihiko Higashi
Previous Patent: ONETIME PASSWORD DEVICE, METHOD, AND PROGRAM
Next Patent: TOUCH PANEL SENSOR, TOUCH PANEL DEVICE, AND DISPLAY DEVICE
Next Patent: TOUCH PANEL SENSOR, TOUCH PANEL DEVICE, AND DISPLAY DEVICE