PROBLEM TO BE SOLVED: To improve safety or comfortableness of a plurality of users whose moving directions and moving velocities can independently change.SOLUTION: A notification device comprises: a determination part for determining whether or not a first portable terminal and a second portable terminal are coming close to each other within a prescribed distance range in a prescribed period of time by using first information about a current position of the first portable terminal and a current velocity vector of the first portable terminal and second information about a current position of the second portable terminal and a current velocity vector of the second portable terminal; and a notification part which, if it is determined that the first portable terminal and the second portable terminal are coming close to each other within the prescribed distance range in the prescribed period of time, notifies of the fact that they are coming close to each other.SELECTED DRAWING: Figure 1
【課題】移動方向や移動速度が個別に変化しうる複数のユーザーの安全性または快適性を高めること。【解決手段】通知装置は、第1の携帯端末の現在の位置および前記第1の携帯端末の現在の速度ベクトルに関連する第1の情報と、第2の携帯端末の現在の位置および前記第2の携帯端末の現在の速度ベクトルに関連する第2の情報とを用いて、前記第1の携帯端末と前記第2の携帯端末とが所定時間内に所定距離範囲内に接近するか否かを判定する判定部と、前記第1の携帯端末と前記第2の携帯端末とが前記所定時間内に前記所定距離範囲内に接近すると判定された場合に、接近する旨を通知する通知部と、を含む。【選択図】図1
NOTIFICATION DEVICE, SERVER, NOTIFICATION SYSTEM AND NOTIFICATION METHOD
通知装置、サーバー、通知システム、通知方法
2017-09-28
Patent
Electronic Resource
Japanese
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