JP7296525B2 - 分布図を通じた機器の予知保全方法 - Google Patents
分布図を通じた機器の予知保全方法 Download PDFInfo
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- JP7296525B2 JP7296525B2 JP2022523044A JP2022523044A JP7296525B2 JP 7296525 B2 JP7296525 B2 JP 7296525B2 JP 2022523044 A JP2022523044 A JP 2022523044A JP 2022523044 A JP2022523044 A JP 2022523044A JP 7296525 B2 JP7296525 B2 JP 7296525B2
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- 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
- G05B23/024—Quantitative history assessment, e.g. mathematical relationships between available data; Functions therefor; Principal component analysis [PCA]; Partial least square [PLS]; Statistical classifiers, e.g. Bayesian networks, linear regression or correlation analysis; Neural networks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- 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
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0283—Predictive maintenance, e.g. involving the monitoring of a system and, based on the monitoring results, taking decisions on the maintenance schedule of the monitored system; Estimating remaining useful life [RUL]
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- 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
- G05B23/0221—Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Artificial Intelligence (AREA)
- Evolutionary Computation (AREA)
- Mathematical Physics (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Alarm Systems (AREA)
Description
S20:第1分布図構築段階
S30:第1区間設定段階
S40:第2分布図構築段階
S50:第2区間設定段階
S60:閾値設定段階
S70:検出段階
S80:傾き情報収集段階
100:分布図を通じた機器の予知保全方法
Claims (1)
- 機器の予知保全方法において、
機器が正常な駆動状態にて一つの作業工程を行うのに要する電力量の大きさが時間の経過にしたがって変化する情報を測定し、そのように測定される電力量の大きさの変化の情報から、電力量の大きさが最大の値をピーク(peak)値として収集する情報収集段階(S10)と、
前記情報収集段階(S10)において収集される情報を基盤として、機器にて繰り返して行われる作業工程のそれぞれについてのピーク値を全て収集し、そのように収集されたピーク値を基盤として第1分布図を構築するのであって、設定されたピーク単位時間の間隔で機器にて繰り返して行われた動作に対する、第1分布図を繰り返して構築する第1分布図構築段階(S20)と、
前記第1分布図においてピーク値の分布確率の高い区間をピーク平均区間として任意に設定し、そのように設定されたピーク平均区間以外の区間のうちの、選択されるいずれか一つの区間または二つ以上の区間を、ピーク検出区間として設定する第1区間設定段階(S30)と、
前記情報収集段階(S10)並びに第1分布図構築段階(S20)及び第1区間設定段階(S30)を通じて繰り返して収集される、第1分布図のピーク検出区間に対する分布確率を全て収集し、そのように収集されたピーク検出区間の分布確率値に対する第2分布図を構築するのであって、設定された分布単位時間の間隔で繰り返して構築された第1分布図のピーク検出区間に対する、第2分布図を繰り返して構築する第2分布図構築段階(S40)と、
前記第2分布図において、ピーク検出区間の分布確率値の分布確率が高い区間を分布平均区間として任意に設定し、そのように設定された分布平均区間以外の区間のうちの、選択されるいずれか一つの区間または二つ以上の区間を、分布検出区間として設定する第2区間設定段階(S50)と、
前記分布検出区間の分布確率に対する分布閾値を設定する閾値設定段階(S60)と、
機器のリアルタイムの駆動状態にて分布単位時間内に繰り返して構築される、第1分布図のピーク検出区間に対する分布確率値についての第2分布図における分布検出区間の分布確率が、前記分布閾値を超える場合に、警報を行うことで機器の点検管理を誘導する検出段階(S70)とからなり、
前記ピーク単位時間は、少なくとも二つ以上の作業工程を含む時間として設定され、前記分布単位時間は、少なくとも二つ以上の第1分布図を含む時間として設定されることを特徴とする分布図を通じた機器の予知保全方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020190128095A KR102316510B1 (ko) | 2019-10-15 | 2019-10-15 | 분포도를 통한 기기의 예지 보전방법 |
KR10-2019-0128095 | 2019-10-15 | ||
PCT/KR2020/013996 WO2021075845A1 (ko) | 2019-10-15 | 2020-10-14 | 분포도를 통한 기기의 예지 보전방법 |
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JP2022543922A JP2022543922A (ja) | 2022-10-14 |
JP7296525B2 true JP7296525B2 (ja) | 2023-06-22 |
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US (1) | US20230058122A1 (ja) |
JP (1) | JP7296525B2 (ja) |
KR (1) | KR102316510B1 (ja) |
WO (1) | WO2021075845A1 (ja) |
Families Citing this family (5)
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KR102316496B1 (ko) * | 2019-10-15 | 2021-10-22 | (주)아이티공간 | 분포도를 통한 기기의 예지 보전방법 |
IL300339A (en) | 2020-08-04 | 2023-04-01 | Arch Systems Inc | Methods and systems for predictive analysis and/or process control |
KR20240106605A (ko) * | 2022-12-29 | 2024-07-08 | (주)아이티공간 | 절대편차를 이용한 기기의 예지 보전방법 |
KR20240106596A (ko) * | 2022-12-29 | 2024-07-08 | (주)아이티공간 | 절대편차를 이용한 기기의 예지 보전방법 |
KR20240106608A (ko) * | 2022-12-29 | 2024-07-08 | (주)아이티공간 | 절대편차를 이용한 기기의 예지 보전방법 |
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JP2022543921A (ja) | 2019-10-15 | 2022-10-14 | アイティーエス カンパニー リミテッド | 分布図を通じた機器の予知保全方法 |
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JP2000259222A (ja) * | 1999-03-04 | 2000-09-22 | Hitachi Ltd | 機器監視・予防保全システム |
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KR102103152B1 (ko) * | 2018-03-14 | 2020-04-22 | (주)아이티공간 | 구동부의 정밀 예지 보전방법 |
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- 2019-10-15 KR KR1020190128095A patent/KR102316510B1/ko active IP Right Grant
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2020
- 2020-10-14 US US17/769,652 patent/US20230058122A1/en not_active Abandoned
- 2020-10-14 WO PCT/KR2020/013996 patent/WO2021075845A1/ko active Application Filing
- 2020-10-14 JP JP2022523044A patent/JP7296525B2/ja active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001052221A (ja) | 1999-08-05 | 2001-02-23 | Hitachi Ltd | 設備稼働状態計測装置及び方法 |
JP2002304207A (ja) | 2001-04-04 | 2002-10-18 | Honda Motor Co Ltd | 工作機械の稼働状況管理方法 |
JP2003259468A (ja) | 2002-02-26 | 2003-09-12 | Daikin Ind Ltd | 設備機器の監視装置及び監視システム |
JP2011036003A (ja) | 2009-07-30 | 2011-02-17 | Fujitsu Component Ltd | 電源監視制御装置、電源監視制御システム、及び電源監視制御方法 |
JP2015030240A (ja) | 2013-08-06 | 2015-02-16 | 東芝機械株式会社 | 電動機械および電動機械の電力監視方法 |
JP2016040072A (ja) | 2014-08-11 | 2016-03-24 | 日立金属株式会社 | 工具異常検知方法 |
JP2017162252A (ja) | 2016-03-10 | 2017-09-14 | 横河電機株式会社 | 工程監視装置、工程監視システム、工程監視方法、工程監視プログラム及び記録媒体。 |
JP2020520016A (ja) | 2018-03-14 | 2020-07-02 | アイティーエス カンパニー リミテッドIts Co.,Ltd. | 駆動部の精密予知保全方法 |
JP2022543921A (ja) | 2019-10-15 | 2022-10-14 | アイティーエス カンパニー リミテッド | 分布図を通じた機器の予知保全方法 |
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JP2022543922A (ja) | 2022-10-14 |
WO2021075845A1 (ko) | 2021-04-22 |
KR102316510B1 (ko) | 2021-10-22 |
US20230058122A1 (en) | 2023-02-23 |
KR20210044656A (ko) | 2021-04-23 |
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