To provide a danger warning apparatus which can reduce the influence of signal delay, a terminal, a danger warning information transmission method, and a danger warning information providing method.SOLUTION: A danger warning apparatus includes a terminal information receiving unit, a mapping unit, an area setting unit, a danger warning information transmission unit, a delay database, a signal delay estimation unit, and a delay determination unit. When the delay determination unit determines that signal delay time is equal to or larger than a threshold, the mapping unit estimates a position of a terminal having transmitted terminal information, on the basis of past terminal information with signal delay time less than the threshold.SELECTED DRAWING: Figure 1

    【課題】信号遅延の影響を抑制できる危険通知装置、端末、危険通知情報送信方法、及び危険通知情報提供方法を提供すること。【解決手段】危険通知装置は、端末情報受信ユニットと、マッピングユニットと、エリア設定ユニットと、危険通知情報送信ユニットと、遅延データベースと、信号遅延推測ユニットと、遅延判断ユニットとを備える。信号遅延時間が閾値以上であると遅延判断ユニットが判断した場合、マッピングユニットは、端末情報を送信した端末の位置を、信号遅延時間が閾値未満である過去の端末情報に基づき推測する。【選択図】図1


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    Title :

    DANGER WARNING APPARATUS, TERMINAL, DANGER WARNING INFORMATION TRANSMISSION METHOD, AND DANGER WARNING INFORMATION PROVIDING METHOD


    Additional title:

    危険通知装置、端末、危険通知情報送信方法、及び危険通知情報提供方法


    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




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