To prevent deterioration in the accuracy of determining the state of an object due to aging of a sensor and to suppress the increase in operation cost.SOLUTION: An acquisition section 21 processes the sensing signal of a magnetic sensor 2 input thereto to obtain an observation value. A determination section 22 determines whether the object to be observed is in a first state or a second state depending on whether a determination value calculated by using the observation value is a value within the first determination range determined by a reference value or not. An update section 23 updates the reference value if the determination value is within a second determination range determined within a first determination range. The update section does not update the reference value if the determination value is not within the second determination range.SELECTED DRAWING: Figure 2

    【課題】センサの経年劣化にともなう観測対象の状態の判定精度の低下を防止し、且つ運用コストが増大するのを抑えることができる。【解決手段】観測値取得部21が入力された磁気センサ2のセンシング信号を処理して観測値を取得する。判定部22は観測値を用いて算出した判定値が判定基準値に基づいて定めた第1判定範囲内の値であるかどうかにより、観測対象が第1の状態であるか、第2の状態であるかを判定する。更新部23は、判定値が第1判定範囲内に定めた第2判定範囲内の値であれば判定基準値を更新し、反対に判定値が第2判定範囲内の値でなければ判定基準値を更新しない。【選択図】図2


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    Title :

    STATE DETERMINATION UNIT, DETECTION DEVICE, STATE DETERMINATION METHOD, AND STATE DETERMINATION PROGRAM


    Additional title:

    状態判定ユニット、検知装置、状態判定方法、および状態判定プログラム


    Contributors:

    Publication date :

    2019-04-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01V Geophysik , GEOPHYSICS / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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