To provide a variation abnormality determination device of an axis deviation which can determine an abnormality when such an abnormality that an axis deviation angle varies due to the variation of the axis deviation angle occurs.SOLUTION: There is provided a variation abnormality determination device of an axis deviation of a radar device including a control device which estimates an angle formed by the reference direction and the central axis of the radar wave as an axis deviation angle αh and determines a variation abnormality of the axis deviation for the radar device which detects a target by radiating the radar wave in the direction of being apart from a vehicle and detecting the reflection wave. The control device: estimates the axis deviation angle αh for each preset time (S30); calculates a standard deviation σh of the plurality of axis deviation angles (S50); and determines that a variation abnormality of the axis deviation occurs (S100) when determination that the standard deviation exceeds a preset reference value σhc is performed continuously over a preset reference number of times Chc (S60-S90).SELECTED DRAWING: Figure 2

    【課題】軸ずれ角度が変動することに起因して軸ずれ角度がばらつく異常が生じた場合に、その異常を判定することができる軸ずれのばらつき異常判定装置を提供する。【解決手段】車両から離れる方向へレーダ波を放射し、反射波を検出することにより物標を検出するレーダ装置について、基準方向とレーダ波の中心軸とがなす角度を軸ずれ角度αhとして推定し、軸ずれのばらつき異常を判定する制御装置を含むレーダ装置の軸ずれのばらつき異常判定装置であって、制御装置は、予め設定された時間毎に、軸ずれ角度αhを推定し(S30)、複数の軸ずれ角度の標準偏差σhを演算し(S50)、標準偏差が予め設定された基準値σhcを越えている旨の判定が連続して予め設定された基準回数Chc以上行われたときに(S60~S90)、軸ずれのばらつき異常が生じていると判定する(S100)。【選択図】図2


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    Title :

    VARIATION ABNORMALITY DETERMINATION DEVICE OF AXIS DEVIATION OF RADAR DEVICE


    Additional title:

    レーダ装置の軸ずれのばらつき異常判定装置


    Contributors:

    Publication date :

    2023-10-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01S RADIO DIRECTION-FINDING , Funkpeilung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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