JPH02234298A - Facility accident detecting device - Google Patents

Facility accident detecting device

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Publication number
JPH02234298A
JPH02234298A JP1053623A JP5362389A JPH02234298A JP H02234298 A JPH02234298 A JP H02234298A JP 1053623 A JP1053623 A JP 1053623A JP 5362389 A JP5362389 A JP 5362389A JP H02234298 A JPH02234298 A JP H02234298A
Authority
JP
Japan
Prior art keywords
accident
monitoring
failure
plant
equipment
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
JP1053623A
Other languages
Japanese (ja)
Inventor
Riyouji Douya
銅屋 良司
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
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 filed Critical Toshiba Corp
Priority to JP1053623A priority Critical patent/JPH02234298A/en
Publication of JPH02234298A publication Critical patent/JPH02234298A/en
Pending legal-status Critical Current

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  • Testing And Monitoring For Control Systems (AREA)
  • Alarm Systems (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To effectively detect an accident by supervising plant facility equipment according to the degree of secular deterioration in a suitable cycle. CONSTITUTION:A facility accident detecting device 3 is provided with a supervising/collecting device 4, which inputs signals from respective sensors 2a, 2b,... and A/D-converts the signals, an accident deciding device 5, which decides the occurrence of the accident based on data from the supervising/ collecting device 4, a decision result output device 6 to output a decision result, and further a supervisory variable device 7, which alters a plant supervisory cycle based on the accident decision result of the accident deciding device 5. At the beginning of the activation of plant equipment 1a, 1b,... having the small possibility of the accident occurrence, the supervising cycle is made longer, and when the possibility of the accident occurrence becomes larger, the supervising cycle is made shorter. Thus waste to frequently supervise a plant to discover the accident when the accident occurrence possibility is small can be eliminated, and the efficient plant supervision is attained.

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野) この発明は、例えば産業用監視制御システムや上下水道
監視制御システムなどのプラントにおける機器設備の状
態を監視し、その故障の程度を事前に検出して外部に知
らせる設備故障検出装置に関する。
[Detailed Description of the Invention] [Objective of the Invention] (Field of Industrial Application) This invention monitors the status of equipment in plants, such as industrial monitoring and control systems and water and sewage monitoring and control systems, and detects their failures. The present invention relates to an equipment failure detection device that detects the degree of failure in advance and notifies the outside.

(従来の技術) 従来、例えば産業用監視制御システムや上下水道の監視
制御システムにおける設備故障検出装置としては第4図
に示すような構成のものが知られている。
(Prior Art) Conventionally, as an equipment failure detection device for, for example, an industrial supervisory control system or a water supply/sewerage supervisory control system, a configuration as shown in FIG. 4 is known.

この従来の設備故障検出装置は、ボンブやモータなどの
プラント機器設備1 a,1 b,].c,・・・の電
圧、電流、振動などの状態信号をそれぞれのセンザ2a
,2b,2c,・・・で検出して、設備故陣検川装置3
の監視収集装置4に人力するようにしている。
This conventional equipment failure detection device detects plant equipment such as bombs and motors 1a, 1b,]. The state signals such as voltage, current, vibration, etc. of c,... are sent to each sensor 2a.
, 2b, 2c, . . . , the equipment inspection equipment 3
The monitoring and collection device 4 is manually operated.

そして、監視収集装置4では、第3図に示す.ようにセ
ンサ2 a +  2 b +  2 Cr ・・・か
らの状態(g 至:〜を常時、あるいは適当な一定の周
期T0で読み込み、A/D変換して故障判定装置5に与
えるようにしている。
The monitoring and collection device 4 is shown in FIG. The state from the sensor 2 a + 2 b + 2 Cr (g to: ~) is read constantly or at an appropriate constant cycle T0, A/D converted, and provided to the failure determination device 5. There is.

この故障判定装置5では、監視収集装置4からのデータ
をあらかじめ設定されている故障の程度を示すしきい値
x,,X,と比較し、故障の程度を判定する。そして、
その判定結果は判定結1本(出力部6において、ディス
プレイ表示装置やプリンタにより出力し、また必要なら
ば警報音を出力することによりオペレータに知らせるよ
うにしていた。
This failure determination device 5 compares the data from the monitoring and collection device 4 with a preset threshold value x,,X, indicating the degree of failure, and determines the degree of failure. and,
The judgment result is outputted in one judgment result (in the output section 6, by a display device or a printer, and if necessary, the operator is notified by outputting an alarm sound.

(発明が解決しようとする課題) しかしながら、このような従来の設備故障検[11装置
では、特にプラント設備などにおける故障は突然破壊に
至ることは希であり、経年的に劣化して故障になるのが
一般的であるため、プラント機器設備の経年劣化故障あ
るいは故障の前兆を検出するには必ずしも常時あるいは
頻繁な周期T。
(Problem to be solved by the invention) However, with such conventional equipment failure detection equipment, it is rare for a failure, especially in plant equipment, to suddenly lead to destruction, and it is difficult to detect failures due to deterioration over time. Therefore, in order to detect aging failures or signs of failure in plant equipment, it is not necessary to use constant or frequent cycles T.

てプラント設備の監視を行うことを必要とせず、無駄な
監視動作をしていることになる問題点かあつ tこ 。
The problem is that there is no need to monitor the plant equipment, resulting in unnecessary monitoring operations.

この発明はこのような従来の問題点に鑑みて成されたも
ので、プラント設備機器の監視をその経年劣化の程度に
応じて適切な周期で行うことにより故障の検出を効果的
に行える設備故障検出装置を提供することをLI的とす
る。
This invention was made in view of such conventional problems, and it is possible to effectively detect equipment failure by monitoring plant equipment at appropriate intervals depending on the degree of deterioration over time. The purpose of LI is to provide a detection device.

[発明の構成] (課題を解決するための手段) この発明の設備故障検出装置は、設備の状態を周期的に
監視し、そのデータを収集する監視収集手段と、この監
視収集手段のデータに基づき故障の程度を判定する故障
判定手段と、この故障判定手段の故障判定結果を出力す
る出力手段と、前記故障判定手段により判定した故障の
程度に応して前記監視収集手段の設備状態監視周期を可
変とする監視周期可変手段とを備えたものである。
[Structure of the Invention] (Means for Solving the Problems) The equipment failure detection device of the present invention includes a monitoring and collecting means that periodically monitors the status of the equipment and collects the data, and a monitoring and collecting means that collects the data. a failure determination means for determining the degree of failure based on the failure determination means; an output means for outputting the failure determination result of the failure determination means; and an equipment status monitoring period of the monitoring and collection means according to the degree of failure determined by the failure determination means. and monitoring period variable means for making the monitoring period variable.

(作用) 一般的にポンプやモータなどのプラン]・設備機器では
、その経年劣化により使用期間が長くなるほど振動や騒
音が大きくなり、近い将来の故障の発生や寿命の到来を
予測しやすいものである。
(Function) Generally, plans for pumps, motors, etc.] - Due to aging deterioration of equipment, the longer it is used, the greater the vibration and noise, and it is easy to predict the occurrence of failure in the near future or the end of its life. be.

そこで、この発明の設備故障検出装置では、当該設備の
起動当初は設備監視収集手段により設備の状態を比較的
低い頻度の周期で監視しながら、設備監視データを収集
する。そして、この監視収集手段によるデータから故障
判定手段により故障発生の有無を判定する。
Therefore, in the equipment failure detection device of the present invention, when the equipment is started up, equipment monitoring data is collected while monitoring the status of the equipment at a relatively low frequency using the equipment monitoring and collecting means. Then, based on the data obtained by the monitoring and collecting means, the failure determining means determines whether or not a failure has occurred.

例えば、振動振幅が大きくなっていたり、騒音が大きく
なっていてしきい値を越えるほどになっている場合には
、経年劣化による寿命の到来が近くなったか、故障の発
生が近い将来に起こり得る状態になっていると判断して
、プラント設備の監規固期を上げることにより、より木
口の細かいブラノ1・監視ができるように監視周期可変
手段に対{2て監視周期変更指令をり,える。
For example, if the vibration amplitude is increasing or the noise is increasing to the point that it exceeds the threshold, it means that the product is nearing the end of its life due to aging, or that a failure may occur in the near future. By determining that the condition has been reached, and increasing the inspection period of the plant equipment, a command to change the monitoring period is issued to the monitoring period variable means so that finer grained brano 1 and monitoring can be performed. .

そこで、監視周期可変手段は、この指令を受け′C監現
周期を上げることによりプラント設備の監視デークをい
っそう頻繁な周期で監視収集手段に収集させるようにす
る。
Therefore, the monitoring cycle variable means receives this command and increases the 'C monitoring cycle, thereby causing the monitoring collection means to collect the monitoring data of the plant equipment at a more frequent cycle.

こうして、故障の比較的起こりにくい状態ではプラント
の監視周期を低いものに抑えておいて無駄な監視動作を
できるだけ避けるようにし、プラント設備の寿命が近付
いた時や故障が近い将来に発生するような状態になった
時にはプラント監視周期を上げることによりプラントの
監視を無駄なく、効果的に行えるようにする。
In this way, in situations where failures are relatively unlikely to occur, the plant monitoring frequency is kept low to avoid wasteful monitoring operations as much as possible, and when plant equipment is nearing the end of its service life or a failure is likely to occur in the near future. To enable efficient and effective plant monitoring by increasing the plant monitoring cycle when the condition occurs.

(実施例) 以下、この発明の実施例を図に基づいて詳説する。(Example) Hereinafter, embodiments of the present invention will be explained in detail based on the drawings.

第1図はこの発明の一実施例を示しており、ポンプやモ
ータなどのプラント機器設(iiifl,a,lb,l
c,・・・の電流、電圧、振動、騒音などの各種プロセ
ス値や状態データをセンサ2a,2b,2c・・・で検
出して設備故障検■装置3に人力ずるようになっている
FIG. 1 shows an embodiment of the present invention, in which plant equipment such as pumps and motors (iiifl, a, lb, l)
Sensors 2a, 2b, 2c, . . . detect various process values and state data such as current, voltage, vibration, noise, etc., and manually send them to equipment failure detection device 3.

設備故障検出装置3は、前記各センサ2a.2b,2c
,・・・からの信号を入力してA/D変換を行う監視収
集装置4と、この監視収集装置4からのデータから故障
の発生を判定する故障判定装置5と、この判定結果を出
力する判定結果出力装置6と、さらに前記故障判定装置
5の故障判定結果に基づきプラント監視周期を変更する
監視周期可変装置7とを備えている。
The equipment failure detection device 3 includes each of the sensors 2a. 2b, 2c
A monitoring and collecting device 4 inputs signals from , . It is equipped with a determination result output device 6 and a monitoring cycle variable device 7 that changes the plant monitoring cycle based on the failure determination result of the failure determination device 5.

そして、前記故障判定装置5は、振動分析にょリモータ
やポンプの故障を判定するものとして監視収集装置4か
らのデータを人力し、高速フーリ工変換により周波数分
析を行う周波数分析部8と、この周波数分析部8からの
信号をあらかじめ与えられている第3図に示す劣化曲線
のしきい値X1x2と比較する比較部9と、この比較部
9からの比較結果に基づき設備機器1 21 ,  l
 b +  IC+ ・・・の故陣状態を判定し、判定
結果を出力する故障判定部10とから構成されている。
The failure determination device 5 includes a frequency analysis unit 8 that manually inputs data from the monitoring and collection device 4 to determine failures of remote motors and pumps using vibration analysis, and performs frequency analysis using fast Fourier transform. A comparison section 9 compares the signal from the analysis section 8 with the threshold value X1x2 of the deterioration curve shown in FIG.
b + IC+ .

次に、上記の構成の設備故障検出装置の動作について説
明する。
Next, the operation of the equipment failure detection device having the above configuration will be explained.

いま、監視の対象となる設備機器としてボンブを考慮す
ると、ポンプは第3図に示すような経年劣化曲線に基づ
いて消耗していく。
Now, when we consider pumps as equipment to be monitored, they wear out based on the aging curve shown in Figure 3.

そこで、監視周期可変装置7は、当初周期T,てプラン
ト監視を行うように周期T1をセットし、監視収集装置
4に各プラント設備機器1a,lb,1C,・・・のセ
ンサ2 a ,2 b ,2 c + ・・・からのデ
ータをT,周期で取り込むように指示する(第2図のフ
ローチャートにおけるステップSL,S2)。
Therefore, the monitoring period variable device 7 sets the period T1 so that the plant is monitored at the initial period T, and the monitoring and collection device 4 is configured to set the period T1 so that the plant monitoring is performed at the initial period T, and the monitoring period variable device 7 sets the period T1 so that the plant monitoring is performed at the initial period T, and the monitoring period variable device 7 sets the period T1 so that the plant monitoring is performed at the initial period T. It instructs to take in data from b, 2c + .

監視収集装置4は、センサ2a,2b,2c・・・から
のデータをA/D変換して故障判定装置3に人力して故
障判定を行う(ステップS3)。
The monitoring and collection device 4 A/D converts the data from the sensors 2a, 2b, 2c, . . . and manually inputs the data to the failure determination device 3 to determine a failure (step S3).

この故障判定装置3での故障判定動作は、次による。The failure determination operation in this failure determination device 3 is as follows.

まず、センサ2a.2b,2c,・・・からの振動デー
タを周波数分析部8において周波数分析し,て周波数体
毎の分析結果を比較部9に与える。
First, sensor 2a. The vibration data from 2b, 2c, .

比較部9にはあらかじめ定められた周波数帯の強度のし
きい値X+ ,X2  (X+  :故障第1程度(近
い将来故障が発生する事の予AP1される状態)x2:
故障第2程度(故障発生、または寿命到来}を与えてお
き、分析された振動データの対応プ゛る周波数帯の強度
と比較する。そして、ボンブの劣化がA点まで進み、実
際のデータの方が特定の周波数帯でしきい値X1を超え
る大きな強度を111っている場合には故障判定部10
において寿命間近し、あるいは近い将来に故障が発生す
るものと判定し、判定結果出力装置6に故障判定結果を
出力すると共に監視周期可変装置7に周期変更指令を出
力する(ステップS4,S5)。
The comparator 9 has predetermined frequency band intensity thresholds X+, X2 (X+: first degree of failure (a state in which a failure is expected to occur in the near future) x2:
The second degree of failure (failure occurrence or end of life) is given and compared with the intensity of the corresponding frequency band of the analyzed vibration data.Then, the deterioration of the bomb progresses to point A, and the actual data is 111 has a large intensity exceeding the threshold value X1 in a specific frequency band, the failure determination unit 10
It is determined that the service life is approaching or a failure will occur in the near future, and a failure determination result is output to the determination result output device 6, and a cycle change command is output to the monitoring cycle variable device 7 (steps S4, S5).

監視周期可変装置7は、この故障判定装置3からの指令
に基づき、監視頻度を上げるために監視周期をT2に変
更し、いっそう高い頻度で各設備1,a,lblc,・
・・の監視を行うようにする(ステップ3.6)。
Based on the command from the failure determination device 3, the monitoring cycle variable device 7 changes the monitoring cycle to T2 in order to increase the monitoring frequency, and operates each equipment 1, a, lblc, . . . at an even higher frequency.
(Step 3.6).

そして、ポンプの劣化がいっそう進みB点まで到達する
と、プラント設備のla,1.b,lc,・・・の周期
T2毎の監視によりしきい値X2を超える故障判定結果
で出るようになり、故障発生、または寿命到来と判定し
、故障対応指令を出力装置6により出力し、作業員に知
らせるようにする。
When the deterioration of the pump progresses further and reaches point B, the la, 1. By monitoring b, lc, . . . every cycle T2, a failure determination result exceeding the threshold value X2 is output, it is determined that a failure has occurred or the life has come to an end, and a failure response command is outputted from the output device 6. Inform workers.

こうして、設備機器の故障の程度また、劣化の程度を判
定して、故障が近付いているような場合や寿命が近付い
ているような場合には監視周期をさらに頻繁なものに上
昇させ、故障監視をいっそう厳密に行うことができるの
である。
In this way, the degree of failure and deterioration of equipment is determined, and if the equipment is nearing failure or the end of its life, the monitoring cycle is increased to a more frequent one, and failure monitoring is performed. can be done more precisely.

尚、この発明の上記の実施例では、監視周期をT.  
 T2の2つに設定したが、これはさらに細か< T+
 .T2 ,T3 ,T4 ,・・・に分けることもで
きる。
In the above embodiment of the present invention, the monitoring cycle is set to T.
I set it to two T2, but this is even more detailed < T+
.. It can also be divided into T2, T3, T4, .

上記の実施例では監視収集するデータの内、振動データ
だけでボンブの故障判定を行うようにし,た場合につい
て示したが、一般にプラン1・機器設備においては、複
数のデータの監視、例えば電圧、電流などのプロセス値
や騒音の監視を行うようにすることができる。
In the above embodiment, the failure of the bomb was determined based only on the vibration data among the data to be monitored and collected. However, generally in Plan 1 equipment, multiple data such as voltage, voltage, etc. are monitored. Process values such as current and noise can be monitored.

[発明の効果] 以上のようにこの発明によれば、故障判定f段が判定す
る故障程度を応じてプラント設IQ j:8. ’a:
:’の監視周期を可変としているため、故障が発生ずる
可能性の小さいプラントの起動開始当初は監視周期を長
くし、故障の発生の可能性が大きくなー)でくれば監視
周期を上げるようにすることができ、故障の発生の可能
性の小さいときに故障監視のために開繁にプラント監視
を行う無駄をなくすことができ、能率的なプラント監視
ができる。
[Effects of the Invention] As described above, according to the present invention, the plant setting IQ j:8. 'a:
:Since the monitoring period is variable, the monitoring period is lengthened at the beginning of plant startup when the possibility of failure occurring is small, and the monitoring period is increased when the possibility of failure becoming high (). This eliminates the waste of busy plant monitoring for failure monitoring when the possibility of failure occurring is small, and enables efficient plant monitoring.

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

第1図はこの発明の一実施例のブロック図、第2図は上
記実施例の動作を示すフローチャート、第3図は上記の
実施例において使用するプラレト監視周期と劣化曲線と
の関係を示すグラフ、第4ク図である。 ・・・・・・プラン ・・・・・・センサ 4・・・監視収集装置 6・・・判定結果出力装置 8・・・周波数分析部 0・・・故障判定部 図は従来例のブロッ la,lb,lc, 2 a +  2 b +  2 c ,3・・・故障
検出装置 5・・・故障判定装置 7・・・監視周期可変装置 9・・・比較部 ト設備機器
Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a flowchart showing the operation of the above embodiment, and Fig. 3 is a graph showing the relationship between the platelet monitoring cycle and the deterioration curve used in the above embodiment. , Fig. 4. ...Plan...Sensor 4...Monitoring and collection device 6...Judgment result output device 8...Frequency analysis section 0...Failure judgment section The figure is block la of the conventional example. , lb, lc, 2 a + 2 b + 2 c, 3...Failure detection device 5...Failure determination device 7...Monitoring period variable device 9...Comparison section equipment

Claims (1)

【特許請求の範囲】[Claims] 設備の状態を周期的に監視し、そのデータを収集する監
視収集手段と、この監視収集手段のデータに基づき故障
の程度を判定する故障判定手段と、この故障判定手段に
より判定した故障の程度を外部に出力するための出力手
段と、前記故障判定手段により判定した故障の程度に応
じて前記監視収集手段の設備状態監視周期を可変とする
監視周期可変手段とを備えて成る設備故障検出装置。
A monitoring and collecting means that periodically monitors the condition of the equipment and collects the data; a failure determining means that determines the degree of failure based on the data of the monitoring and collecting means; and a failure determining means that determines the degree of failure determined by the failure determining means. An equipment failure detection device comprising an output means for outputting to the outside, and a monitoring cycle variable means for varying the equipment status monitoring cycle of the monitoring and collecting means according to the degree of failure determined by the failure determination means.
JP1053623A 1989-03-08 1989-03-08 Facility accident detecting device Pending JPH02234298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1053623A JPH02234298A (en) 1989-03-08 1989-03-08 Facility accident detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1053623A JPH02234298A (en) 1989-03-08 1989-03-08 Facility accident detecting device

Publications (1)

Publication Number Publication Date
JPH02234298A true JPH02234298A (en) 1990-09-17

Family

ID=12948036

Family Applications (1)

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JP1053623A Pending JPH02234298A (en) 1989-03-08 1989-03-08 Facility accident detecting device

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Cited By (8)

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JP2006209439A (en) * 2005-01-27 2006-08-10 Mitsui Mining & Smelting Co Ltd Leakage monitoring system, and server and method therefor
WO2008120309A1 (en) * 2007-03-28 2008-10-09 Fujitsu Limited Electronic apparatus, method for controlling electronic apparatus, program for controlling electronic apparatus
JP2011187022A (en) * 2010-03-11 2011-09-22 Toshiba Corp Abnormality monitoring system
CN104035394A (en) * 2013-03-07 2014-09-10 发那科株式会社 Numerical controller for machine having component inspection timing notification function
JP2019191649A (en) * 2018-04-18 2019-10-31 Ihi運搬機械株式会社 Device replacement time proposal method and apparatus
JP2019191705A (en) * 2018-04-19 2019-10-31 Ihi運搬機械株式会社 Apparatus maintenance method and device
JP2020166649A (en) * 2019-03-29 2020-10-08 株式会社日立製作所 Sensor terminal and radio sensor system
JP2022031856A (en) * 2020-06-11 2022-02-22 ホーチキ株式会社 Disaster prevention system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006209439A (en) * 2005-01-27 2006-08-10 Mitsui Mining & Smelting Co Ltd Leakage monitoring system, and server and method therefor
WO2008120309A1 (en) * 2007-03-28 2008-10-09 Fujitsu Limited Electronic apparatus, method for controlling electronic apparatus, program for controlling electronic apparatus
JP2011187022A (en) * 2010-03-11 2011-09-22 Toshiba Corp Abnormality monitoring system
CN104035394A (en) * 2013-03-07 2014-09-10 发那科株式会社 Numerical controller for machine having component inspection timing notification function
JP2014174680A (en) * 2013-03-07 2014-09-22 Fanuc Ltd Numerical value control device of machine having component inspection timing notification function
CN104035394B (en) * 2013-03-07 2016-05-25 发那科株式会社 There is the mechanical numerical control device of component inspection informing function in period
US9429933B2 (en) 2013-03-07 2016-08-30 Fanuc Corporation Numerical controller for machine having component inspection timing notification function
JP2019191649A (en) * 2018-04-18 2019-10-31 Ihi運搬機械株式会社 Device replacement time proposal method and apparatus
JP2019191705A (en) * 2018-04-19 2019-10-31 Ihi運搬機械株式会社 Apparatus maintenance method and device
JP2020166649A (en) * 2019-03-29 2020-10-08 株式会社日立製作所 Sensor terminal and radio sensor system
JP2022031856A (en) * 2020-06-11 2022-02-22 ホーチキ株式会社 Disaster prevention system

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