To detect an overweight vehicle.SOLUTION: A determination device includes: a feature quantity calculation unit that calculates a feature quantity dependent on magnitude of a peak wave of time-series data of observed values representing displacements of a bridge in a vehicle traveling direction at a position on the bridge where sensors are disposed, a vehicle determination unit that determines a weight of a vehicle, which has passed the bridge, using a determination model for use in determining the weight of the vehicle on the basis of the feature quantity; an overweight vehicle determination unit that, when the feature quantity is larger than a threshold, determines that the vehicle having passed the bridge is an overweight vehicle; a model learning unit that trains the determination model in learning processing on the basis of feature quantities calculated when plural test vehicles whose weights are already known pass the bridge; and an outlier learning unit that discriminates the feature quantities which are calculated in the learning processing when the respective test vehicles have passed the bridge, as a group of normal values, detects a border between the normal values and outliers, and designates the detected border as a threshold.SELECTED DRAWING: Figure 4

    【課題】過重量車両を検出する。【解決手段】判定装置は、橋梁におけるセンサ装置が設けられた位置における車両の走行方向における橋梁の変位を表す観測値の時系列データにおけるピーク波形の大きさに応じた特徴量を算出する特徴量算出部と、特徴量に基づき車両の重量を判定する判定モデルを用いて、橋梁を通過した車両の重量を判定する車両判定部と、特徴量が閾値より大きい場合、橋梁を通過した車両が過重量車両であると判定する過重量車両判定部と、学習処理において、既知の重量の複数の試験車両のそれぞれが橋梁を通過した場合に算出された特徴量に基づき、判定モデルを訓練するモデル学習部と、学習処理において、複数の試験車両のそれぞれが橋梁を通過した場合に算出された特徴量を正常値のグループとし、正常値と外れ値との境界を検出し、検出した境界を閾値として設定する外れ値学習部と、を備える。【選択図】図4


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    Titel :

    DETERMINATION DEVICE, DETERMINATION SYSTEM, DETERMINATION METHOD, AND PROGRAM


    Weitere Titelangaben:

    判定装置、判定システム、判定方法およびプログラム


    Beteiligte:
    OKAWA HIROSHI (Autor:in) / KOSUGI AKIFUMI (Autor:in) / KOIZUMI DAISUKE (Autor:in)

    Erscheinungsdatum :

    2023-04-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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