JPH0350700A - Data base system - Google Patents

Data base system

Info

Publication number
JPH0350700A
JPH0350700A JP18467789A JP18467789A JPH0350700A JP H0350700 A JPH0350700 A JP H0350700A JP 18467789 A JP18467789 A JP 18467789A JP 18467789 A JP18467789 A JP 18467789A JP H0350700 A JPH0350700 A JP H0350700A
Authority
JP
Japan
Prior art keywords
preventive maintenance
plant
data base
data
setting
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
JP18467789A
Other languages
Japanese (ja)
Inventor
Masahiro Goto
後藤 正博
Minoru Herai
戸来 實
Masaki Nozawa
野沢 政樹
Akifumi Eto
昌文 江藤
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.)
HESCO
Hitachi Ltd
Original Assignee
HESCO
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 HESCO, Hitachi Ltd filed Critical HESCO
Priority to JP18467789A priority Critical patent/JPH0350700A/en
Publication of JPH0350700A publication Critical patent/JPH0350700A/en
Pending legal-status Critical Current

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  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Devices For Executing Special Programs (AREA)
  • Alarm Systems (AREA)

Abstract

PURPOSE:To generate a recommendable preventive maintenance execution list by recording data related to the preventive maintenance of a power generation plant in a data base, controlling it synthetically, setting optimum maintenance execution time automatically by an expert system based on the knowledge of a specialist, and recording an evaluated result in the data base. CONSTITUTION:A large quantity of information such as various kinds of records, drawings and specifications, etc., is recorded in a preventive maintenance synthetic information data base, and the data base 2 is constructed exclusively for setting preventive maintenance execution time, and only the necessary information is edited as being classified by a plant and the kind of a machine, and it contributes to shorten retrieving time. The expert system 3 decides the preventive maintenance execution time of an object plant based on the knowledge of the specialist and the result in the past, and records the result in the data base 4. Through this constitution, by only inputting the object plant in a CRT by a user, a recommendable item list 5 for optimum preventive maintenance execution is displayed as being classified by the plant, and the improvement of the reliability of the plant and the reduction of the retrieving time can be attained.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は1発電プラントの予防保全項目のうち法令によ
り定められていない自主的予防保全項目の予防保守実施
時期を自動的に設定し、予防保全実施時期設定者に提供
する予防保全システムに関する。
[Detailed Description of the Invention] [Field of Industrial Application] The present invention automatically sets the preventive maintenance implementation timing for voluntary preventive maintenance items that are not specified by law among the preventive maintenance items of a power generation plant, and Concerning a preventive maintenance system provided to those who set maintenance implementation schedules.

〔従来の技術〕[Conventional technology]

従来1発電プラントにおける予防保全項目のうち、納入
プラント先とメーカ側で自主的に実施する予防保全項目
の実施時期の設定は、一部の重要な項目を除き、複数の
プラントに統一した点検周期により設定している。特に
、発電プラントは構成部品が多種多様であり、数もぼう
大であるため。
Conventionally, among the preventive maintenance items in a single power generation plant, the implementation timing of preventive maintenance items that are carried out voluntarily by the delivery plant and the manufacturer has been set using a uniform inspection cycle for multiple plants, with the exception of some important items. It is set by In particular, power plants have a wide variety of component parts, and the number of components is large.

従来のようにマニュアルですべての部品を管理すること
は困難であり、統一した点検周期を設定している。、(
特開昭60−205663号公報)〔発明が解決しよう
とする課題〕 上記従来技術は、複数のプラントに対して統一した予防
保全周期により、予防保全実施時期と設定した場合には
、各プラントの個々の条件を考慮していないため、過剰
保全や予防保全実施前に異常が発生する危険等の問題が
あり、また、各プラントの個々の条件を考慮し予防保全
実施時期を設定する場合は、ぼう大なデータを必要とし
、さらに、データを解析し評価するための時間と、専門
的技術を要する等の問題があった。
It is difficult to manage all parts manually as in the past, so a unified inspection cycle has been set. ,(
(Japanese Unexamined Patent Publication No. 60-205663) [Problems to be Solved by the Invention] The above-mentioned conventional technology uses a unified preventive maintenance cycle for multiple plants, and when the preventive maintenance period is set, Because individual conditions are not taken into account, there are problems such as excessive maintenance and the risk of abnormalities occurring before preventive maintenance is implemented.In addition, when setting the timing for preventive maintenance by considering the individual conditions of each plant, This method requires a large amount of data, and it also requires time and specialized skills to analyze and evaluate the data.

本発明の目的は、上記問題点を除去することにある。An object of the present invention is to eliminate the above problems.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的を達成するために、本発明は各発電プラントの
予防保全に関するぼう大な各種データ、例えば、予防保
全実施履歴、運転記録、機器仕様、事故記録等をデータ
ベースに記録し、総合的に管理し、さらに、データベー
スからの検索時間の短縮を図るため、予防保全実施時期
設定のためのデータを選択記録し、それらのデータを基
に専門家の知識により構築したエキスパートシステムに
より、自動的に最適予防保全実施時期を設定し、さらに
、評価結果をデータベースに記録、および、予防保全実
施推奨事項一覧表の作成等を自動的に行なうようにした
ことを特徴とする。
In order to achieve the above object, the present invention records a vast variety of data related to preventive maintenance of each power plant, such as preventive maintenance implementation history, operation records, equipment specifications, accident records, etc., in a database and comprehensively manages the data. Furthermore, in order to reduce the search time from the database, we select and record data for setting preventive maintenance implementation timing, and automatically perform optimal maintenance using an expert system built based on the knowledge of experts based on that data. The present invention is characterized in that preventive maintenance implementation timing is set, evaluation results are recorded in a database, and a preventive maintenance implementation recommendation list is automatically created.

〔作用〕[Effect]

(1)予防保全総合情報データベースには納入プラント
の予防保全に関するすべての情報を記録することにより
情報の収集時間の軽減と情報もれを防止する。
(1) The preventive maintenance comprehensive information database records all information related to preventive maintenance of the delivered plants, thereby reducing information collection time and preventing information leaks.

(2)予防保全実施時期設定用データベースには、実施
時期設定に用いる情報のみを予防保全総合情報データベ
ースにより選択して記録する。それによってデータの検
索時間の軽減が出来る。
(2) In the database for setting the preventive maintenance implementation time, only information used for setting the implementation time is selected and recorded from the preventive maintenance comprehensive information database. This can reduce data search time.

(3)エキスパートシステムとデータベースをオンライ
ンで結ぶことにより、データから自動的に予防保全実施
時期の設定が出来る。
(3) By connecting the expert system and database online, preventive maintenance implementation timing can be automatically set from the data.

(4)エキスパートシステムの評価結果をデータベース
に記録することにより、二度目以降の検索処理時間の短
縮が出来る。
(4) By recording the evaluation results of the expert system in a database, it is possible to shorten the search processing time from the second time onwards.

(5)エキスパートシステムの評価結果により予防保全
実施推奨事項一覧表を自動的に出力することにより、作
業の軽減が出来る。
(5) Work can be reduced by automatically outputting a list of recommendations for preventive maintenance implementation based on the evaluation results of the expert system.

〔実施例〕〔Example〕

以下、本発明の一実施例を図により説明する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

1は予防保全総合情報データベースであり、プラントメ
ーカで収集出来る予防保全に関するすべてのデータが記
録されている0例えば、機器仕様、図面番号、設計関係
図書類、製造記録、検査基準。
1 is a preventive maintenance comprehensive information database in which all data related to preventive maintenance that can be collected by plant manufacturers is recorded0. For example, equipment specifications, drawing numbers, design-related documents, manufacturing records, and inspection standards.

取扱要領、点検記録、補修記録、事故記録、運転情報、
余寿命診断結果等、納入したプラントすべてについて記
録してあり、ぼう大なデータ量であり、検索処理に時間
を必要とする。2はデータベース内の予防保全実施時期
の設定用に専用に構築したデータベースであり、予防保
全実施時期の設定に必要なデータのみを各プラント別、
機種別に編集しであるため、データベース1から、直接
、検索する方法に比べ、検索時間が大巾に短縮出来る。
Handling instructions, inspection records, repair records, accident records, driving information,
The remaining life diagnosis results and other information are recorded for all the plants we have delivered, which is a huge amount of data and requires time to search. 2 is a database built exclusively for setting the preventive maintenance implementation timing in the database, and only the data necessary for setting the preventive maintenance implementation timing is stored for each plant.
Since the information is edited for each model, the search time can be greatly reduced compared to the method of searching directly from the database 1.

データベース1のデータ内容はデータに変更が生じると
同時に更新され、常時、最新データが記録されている。
The data content of the database 1 is updated as soon as a change occurs in the data, and the latest data is always recorded.

、3は2のデータベースの情報により、最適予防保全実
施時期を設定するためのエキスパートシステムである。
, 3 is an expert system for setting the optimal preventive maintenance implementation timing based on the information in the database 2.

専門家の知識と過去の予防保全実施結果等により、品質
の信頼性の点から対象プラント機器の予防保全実施時期
を判断し、その結果を予防保全実施時期データベース4
に記録する。上記1〜4は自動的に処理される。
Based on expert knowledge and past preventive maintenance implementation results, etc., determine when to perform preventive maintenance for the target plant equipment from the standpoint of quality reliability, and store the results in the preventive maintenance implementation timing database 4.
to be recorded. Items 1 to 4 above are automatically processed.

例えば、1のデータが更新されると同時に4のデータも
更新される。この方法により、利用者はCRTに対象と
するプラント多機種名、またはコードを入力するのみで
、最適予防保全実施時期を即座に求めることが出来る。
For example, when data 1 is updated, data 4 is also updated at the same time. With this method, the user can immediately determine the optimum preventive maintenance timing by simply inputting the names or codes of the target plant models on the CRT.

5は予防保全実施推奨事項一覧表であり、発電プラント
の予防保全対象項目の中の冷却等により点検周期の定め
られた物思外、すなわち、納入プラント先とメーカーの
間で自主的に予防保全を実施している予防保全対象品の
実施推奨項目、対象部品、予防保全実施時期等が記載し
てあり、プラント別に自動的に出力される。また、プラ
ント名と実施時期を指定して。
5 is a list of recommendations for implementing preventive maintenance, which includes items such as cooling that are subject to preventive maintenance in power generation plants, and which has a fixed inspection interval. Recommended items to be implemented, target parts, preventive maintenance implementation timing, etc. for products subject to preventive maintenance are listed, and are automatically output for each plant. Also, specify the plant name and implementation period.

予防保全対象機器等の一覧表を作成することも可能であ
る。上記の予防保全実施推奨項目一覧表は、発電プラン
トの信頼性の面からの評価結果であり、実際の予防保全
に当っては、費用と予防保全に要する日程等により最終
的に予防保全対象項目を決定する。この場合、エキスパ
ートシステム3に費用、日程等の制限条件を入力すると
、予防保全対象品の中から、予算費用及び予定日程の範
囲内で、信頼性の高い順に選択し出力する。上記の選択
の際、あらかじめ予防保全項目が決められている場合は
、その項目を入力することにより、優先的に選択項目に
加えることも可能である。さらに、本システムでは、最
適予防保全実施時期評価の内容、例えば、評価のために
用いた生データ、データの評価結果等も必要に応じて出
力することも可能である。また、重要予防保全項目、費
用の高い予防保全項目、通常の予防保全周期と大巾に異
なる予防保全項目等の技術説明書作成のために必要なデ
ータも出力することが可能である。さらに、本システム
と携帯用パソコンを接続することにより、納入プラント
先からでも利用することが可能である。
It is also possible to create a list of equipment subject to preventive maintenance. The list of recommended preventive maintenance items listed above is the result of evaluation from the reliability perspective of the power plant.In actual preventive maintenance, the items to be subject to preventive maintenance will ultimately depend on the cost and schedule required for preventive maintenance. Determine. In this case, when limiting conditions such as cost and schedule are input to the expert system 3, items to be maintained for preventive maintenance are selected and output in descending order of reliability within the budgeted cost and scheduled schedule. When making the above selection, if a preventive maintenance item has been determined in advance, by inputting that item, it is possible to preferentially add it to the selection items. Furthermore, in this system, it is also possible to output the contents of the optimal preventive maintenance implementation timing evaluation, for example, the raw data used for the evaluation, the data evaluation results, etc., as necessary. It is also possible to output data necessary for creating technical manuals such as important preventive maintenance items, expensive preventive maintenance items, and preventive maintenance items that differ significantly from the normal preventive maintenance cycle. Furthermore, by connecting this system to a portable computer, it can be used even from the delivery plant.

〔発明の効果〕〔Effect of the invention〕

本発明によれば以下の効果がある。 According to the present invention, there are the following effects.

(1)予防保全実施時期の設定において、特に、納入プ
ラント先とメーカー側で自主的に行なう予防保全項目の
うち、特に金額の少ない項目については、現状のマニア
ルで行なう方法と比べ、エキスパートシステムにより、
単時間で処理することか出来、費用の大巾な低減が出来
る。この結果、すべての部品−ケーケに至るまで、最適
予防保全実期で評価設定出来るので、プラントの信頼性
向上が出来る。
(1) In setting the timing of preventive maintenance, in particular, among the preventive maintenance items that are carried out voluntarily by the delivery plant and the manufacturer, the expert system is more effective than the current manual method for preventive maintenance items that have a particularly low cost. ,
It can be processed in a short amount of time, and costs can be significantly reduced. As a result, the reliability of the plant can be improved because it is possible to evaluate and set the optimum preventive maintenance period for all parts and components.

(2)予防保全実施時期設定、および、エキスパートの
評価結果を記録する専用データベースを持つことにより
、検索時間の大巾な低減が出来る。
(2) By having a dedicated database for setting preventive maintenance implementation timing and recording expert evaluation results, search time can be significantly reduced.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の発電プラント予防保全実施時期設定支
援システムの一実施例のブロック図である。 1・・・予防保全総合情報データベース、2・・・予防
保全実施時期設定用データベース、3・・・最適予防保
全実施時期設定エキスパートシステム、4・・・予防保
全実施時期データベース、5・・・予防保全実施時期 1 1
FIG. 1 is a block diagram of an embodiment of the power plant preventive maintenance implementation timing setting support system of the present invention. 1... Preventive maintenance comprehensive information database, 2... Preventive maintenance implementation timing setting database, 3... Optimal preventive maintenance implementation timing setting expert system, 4... Preventive maintenance implementation timing database, 5... Prevention Maintenance implementation period 1 1

Claims (1)

【特許請求の範囲】 1、複数の発電プラントの予防保全に関する各種のデー
タをデータベースに記録し、前記データから予防保全実
施時期の設定に必要なデータを選択して記録するデータ
ベースシステム。 2、請求項1の前記データから最適予防保全実施時期を
設定するエキスパートシステム。3、請求項2のエキス
パートシステムの評価結果を記録するデータベースシス
テム。 4、請求項1、2または3の結果により予防保全実施推
奨項目一覧表を作成するシステムを備えた予防保全シス
テム。
[Scope of Claims] 1. A database system that records various data related to preventive maintenance of a plurality of power plants in a database, and selects and records data necessary for setting the preventive maintenance implementation timing from the data. 2. An expert system for setting an optimal preventive maintenance implementation timing from the data according to claim 1. 3. A database system for recording the evaluation results of the expert system according to claim 2. 4. A preventive maintenance system comprising a system for creating a list of recommended preventive maintenance implementation items based on the results of claims 1, 2, or 3.
JP18467789A 1989-07-19 1989-07-19 Data base system Pending JPH0350700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18467789A JPH0350700A (en) 1989-07-19 1989-07-19 Data base system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18467789A JPH0350700A (en) 1989-07-19 1989-07-19 Data base system

Publications (1)

Publication Number Publication Date
JPH0350700A true JPH0350700A (en) 1991-03-05

Family

ID=16157431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18467789A Pending JPH0350700A (en) 1989-07-19 1989-07-19 Data base system

Country Status (1)

Country Link
JP (1) JPH0350700A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08129691A (en) * 1994-10-31 1996-05-21 Central Japan Railway Co Fault diagnostic device utilizing expert system
JP2009069244A (en) * 2007-09-11 2009-04-02 Shigekazu Ito Holder with magnet storing part

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08129691A (en) * 1994-10-31 1996-05-21 Central Japan Railway Co Fault diagnostic device utilizing expert system
JP2009069244A (en) * 2007-09-11 2009-04-02 Shigekazu Ito Holder with magnet storing part

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