JPS55140904A - Plant monitor equipment - Google Patents

Plant monitor equipment

Info

Publication number
JPS55140904A
JPS55140904A JP4790479A JP4790479A JPS55140904A JP S55140904 A JPS55140904 A JP S55140904A JP 4790479 A JP4790479 A JP 4790479A JP 4790479 A JP4790479 A JP 4790479A JP S55140904 A JPS55140904 A JP S55140904A
Authority
JP
Japan
Prior art keywords
abnormal
abnormal degree
signal
parts
degree signal
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
JP4790479A
Other languages
Japanese (ja)
Inventor
Yukio Nagaoka
Katsuichi Kishi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4790479A priority Critical patent/JPS55140904A/en
Publication of JPS55140904A publication Critical patent/JPS55140904A/en
Pending legal-status Critical Current

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  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE: To prevent previously the occurrence of the fault for the units, by predicting and producing the second abnormal degree signal which can be maximum in the subsequent processes among the signals excluding the first abnormal degree signal with every group and based on the changing modulus of the abnormal signal produced at the abnormal degree conversion part.
CONSTITUTION: Plant data D11WDNn showing the present state of each unit are collected with every group of N units and then supplied to abnormal degree signal generation parts 61W6N. Parts 61W6N feature the same constitution, and here generation part 61 is shown. Then abnormal degree conversion parts 111W11l are converted into abnormal degree signals S11WS1l from the present value of plant data D11 and with every data, and the miximum abnormal degree signal is obtained at maximum abnormal degree detection part 21. Then the second abnormal degree signal which can be maximum in the subsequent processes is predicted and produced among the abnormal signals excluding the first abnormal degree signal of every group at abnormal degree prediction part 31 and based on the changing modulus of the abnormal signals produced through parts 111W11l. Thus the occurrence of the fault can be prevented previously for the units.
COPYRIGHT: (C)1980,JPO&Japio
JP4790479A 1979-04-20 1979-04-20 Plant monitor equipment Pending JPS55140904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4790479A JPS55140904A (en) 1979-04-20 1979-04-20 Plant monitor equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4790479A JPS55140904A (en) 1979-04-20 1979-04-20 Plant monitor equipment

Publications (1)

Publication Number Publication Date
JPS55140904A true JPS55140904A (en) 1980-11-04

Family

ID=12788370

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4790479A Pending JPS55140904A (en) 1979-04-20 1979-04-20 Plant monitor equipment

Country Status (1)

Country Link
JP (1) JPS55140904A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60195417A (en) * 1984-03-19 1985-10-03 Toshiba Corp Alarm monitor device of power generation plant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5184778A (en) * 1975-01-24 1976-07-24 Hitachi Ltd
JPS52142171A (en) * 1976-05-21 1977-11-26 Hitachi Ltd Plant machinery supervisory system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5184778A (en) * 1975-01-24 1976-07-24 Hitachi Ltd
JPS52142171A (en) * 1976-05-21 1977-11-26 Hitachi Ltd Plant machinery supervisory system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60195417A (en) * 1984-03-19 1985-10-03 Toshiba Corp Alarm monitor device of power generation plant

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