To enable appropriate selection of representative data to be used for abnormality detection among a large number of data that is the result of status monitoring of a target device.SOLUTION: From an analysis result data group 21 obtained by traveling a railway vehicle equipped with a diagnosis target device, analysis result data close to the center point O of a data distribution area is selected as a primitive data group 31. With respect to each analysis result data of an initial analysis result data group 21, an abnormality determination is performed on this primitive data group 31. A representative data group 331 is selected by repeating an addition of the analysis result data having the abnormality and the abnormality degree satisfying the minimum condition to a primitive data group 31. In second and subsequent runs, by performing the abnormality determination on an existing representative data group 330, a part of an analysis result data group 20 obtained by a relevant run is selected and added/updated to the existing representative data group 330.SELECTED DRAWING: Figure 5

    【課題】対象機器の状態監視結果である多数のデータの中から、異常検知に用いる代表データを適切に選択できるようにすること。【解決手段】診断対象機器を搭載した鉄道車両の走行によって得られた分析結果データ群21からそのデータ分布領域の中心点Oに近い分析結果データを原始データ群31として選定し、初期の分析結果データ群21の各分析結果データについて、この原始データ群31に対する異常判定を行い、異常且つ異常度が最小条件を満たす分析結果データを原始データ群31に追加するといったことを繰り返すことで、代表データ群331を選択する。2回目以降の走行では、既存の代表データ群330に対する異常判定を行うことで、当該走行によって得られた分析結果データ群20から一部を選択し、既存の代表データ群330に追加・更新する。【選択図】図5


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    Title :

    REPRESENTATIVE DATA SELECTION DEVICE, DEVICE DIAGNOSTIC DEVICE, PROGRAM AND REPRESENTATIVE DATA SELECTION METHOD


    Additional title:

    代表データ選択装置、機器診断装置、プログラム及び代表データ選択方法


    Contributors:

    Publication date :

    2019-03-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B61C Lokomotiven , LOCOMOTIVES / G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen



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