To solve the problem that a position of a vehicle is erroneously estimated by map matching processing and reverse traveling of a vehicle is erroneously detected so as to immediately issue an erroneous report to a driver since multiple candidate points are included in an error range of GPS data at a location where roads are complexly crossed.SOLUTION: A reverse traveling determination server for determining a reverse traveling state of a vehicle increases a reverse traveling count of an estimated position which satisfies all of the conditions, i.e., a first condition that a distance between a measured position and an estimated position is shorter than a predetermined distance, a second condition that a specific road link corresponding to an estimated position is a predetermined setting road link, and a third condition that a reverse traveling flag is placed by a reverse traveling flag section, on the basis of reverse traveling determination conditions. When an increase of a reverse traveling count continues for a predetermined time or more, it is determined that the reverse traveling determination conditions are satisfied, so as to output reverse traveling status data.SELECTED DRAWING: Figure 7

    【課題】道路が複雑に交差する箇所ではGPSデータの誤差範囲に複数の候補点が含まるため、マップマッチング処理によって車両の位置を誤って推定し、車両の逆走を誤検出して直ぐに運転手に誤報知してしまう。【解決手段】車両の逆走状態を判定する逆走判定サーバは、逆走判定条件に基づいて、計測された位置と推定された位置との距離が予め定められた距離未満である、という第1条件、推定された位置に対応する特定道路リンクが、予め設定された設定道路リンクである、という第2条件、逆走フラグ部によって逆走フラグを立てられている、という第3条件を何れも満たす、推定された位置の逆走カウントをアップし、逆走カウントのアップが、予め定められた時間以上連続している場合に、逆走判定条件を満たしていると判定して逆走ステータスデータを出力する。【選択図】図7


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    Title :

    REVERSE TRAVELING DETERMINATION SERVER, REVERSE TRAVELING STATE DETERMINATION METHOD, AND PROGRAM FOR CAUSING COMPUTER TO PERFORM THE METHOD


    Additional title:

    逆走判定サーバ、逆走状態判定方法、および、当該方法をコンピュータに実行させるためのプログラム


    Contributors:

    Publication date :

    2019-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G09B Unterrichts- oder Vorführungsgeräte , EDUCATIONAL OR DEMONSTRATION APPLIANCES



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