JPS57182206A - Diagnostic device of abnormality - Google Patents

Diagnostic device of abnormality

Info

Publication number
JPS57182206A
JPS57182206A JP56065357A JP6535781A JPS57182206A JP S57182206 A JPS57182206 A JP S57182206A JP 56065357 A JP56065357 A JP 56065357A JP 6535781 A JP6535781 A JP 6535781A JP S57182206 A JPS57182206 A JP S57182206A
Authority
JP
Japan
Prior art keywords
diagnostic
sampling
level
abnormality
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56065357A
Other languages
Japanese (ja)
Inventor
Tomoo Kumamaru
Toshihiko Ono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56065357A priority Critical patent/JPS57182206A/en
Publication of JPS57182206A publication Critical patent/JPS57182206A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
    • G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
    • G05B23/0235—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To early and surely detect before reaching a serious trouble level that a diagnostic object exceeds an abnormal level, by performing samplings on the diagnostic object in which an abnormality is found more closely than the other diagnostic objects. CONSTITUTION:When, for example, the quantity of state of A among diagnostic objects, A, B, C...N, is in between an abnormal symptom level Y0 and an abnormal level Y1 at a sampling time X1, an abnormal symptom detecting section 5 detects this and gives a signal to a sampling cycle switching section 6, and then, the sampling cycle switching section 6 gives a command that only the sampling cycle for the diagnostic object A be shortened to, for example, 1/4, to a sampling section 2. Consequently, the diagnostic object A will receive a prior treatment when compared with other diagnostic objects, B, C...N, and will be subjected to the sampling at times, X11, X12, and X13. When the quantity of state of the diagnostic object A sampled at the time X12 exceeds the abnormal level Y1, an abnormality deciding section 4 outputs an abnormality deciding signal P.
JP56065357A 1981-04-30 1981-04-30 Diagnostic device of abnormality Pending JPS57182206A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56065357A JPS57182206A (en) 1981-04-30 1981-04-30 Diagnostic device of abnormality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56065357A JPS57182206A (en) 1981-04-30 1981-04-30 Diagnostic device of abnormality

Publications (1)

Publication Number Publication Date
JPS57182206A true JPS57182206A (en) 1982-11-10

Family

ID=13284618

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56065357A Pending JPS57182206A (en) 1981-04-30 1981-04-30 Diagnostic device of abnormality

Country Status (1)

Country Link
JP (1) JPS57182206A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007286707A (en) * 2006-04-13 2007-11-01 Yokogawa Electric Corp Equipment diagnostic system
JP2013140576A (en) * 2011-12-30 2013-07-18 Spirax-Sarco Ltd Apparatus for monitoring steam plant and operating method thereof
WO2016021395A1 (en) * 2014-08-04 2016-02-11 株式会社テイエルブイ Equipment monitoring system, equipment monitoring program, and equipment monitoring method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007286707A (en) * 2006-04-13 2007-11-01 Yokogawa Electric Corp Equipment diagnostic system
JP2013140576A (en) * 2011-12-30 2013-07-18 Spirax-Sarco Ltd Apparatus for monitoring steam plant and operating method thereof
WO2016021395A1 (en) * 2014-08-04 2016-02-11 株式会社テイエルブイ Equipment monitoring system, equipment monitoring program, and equipment monitoring method
JP5961326B2 (en) * 2014-08-04 2016-08-02 株式会社テイエルブイ Device monitoring system, device monitoring program, and device monitoring method
JPWO2016021395A1 (en) * 2014-08-04 2017-04-27 株式会社テイエルブイ Device monitoring system, device monitoring program, and device monitoring method
US10678229B2 (en) 2014-08-04 2020-06-09 Tlv Co., Ltd. Equipment monitoring system, equipment monitoring program, and equipment monitoring method

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