To enable collecting vehicle information whose real-time performance is important by suppressing load and noise to improve accuracy of traffic information calculated with including the vehicle information whose real-time performance is not important with high cost performance.SOLUTION: There are provided a beacon transmission device for transmitting a beacon to a vehicle on a path; a probe car terminal for transmitting a beacon response of either real-time information or application response when receiving the beacon, that is installed in the vehicle; and a management server for performing a processing in response to the beacon response by receiving the beacon response. The management server comprises an ID allocation part for transmitting a regular ID by which it is permitted to transmit the real-time information to the probe car terminal as a transmission source of the application response, if the application response number is smaller than the predetermined necessary number. The application response is a response for requesting allocation of the regular ID. The probe car terminal that holds an application policy by which whether or not the application response is carried out is specified transmits the beacon response in accordance with the application policy.SELECTED DRAWING: Figure 2
【課題】リアルタイム性が重要な車両情報を、負荷とノイズを抑えて収集可能とし、リアルタイム性が重要でない車両情報を含めて算出される交通情報の精度をコストパフォーマンス良く向上させる。【解決手段】経路上の車両にビーコンを送信するビーコン送信装置と、車両に搭載され、ビーコンを受信すると、リアルタイム情報および応募応答のいずれかのビーコン応答を送信するプローブカー端末と、ビーコン応答を受信し、当該ビーコン応答に応じて処理を行う管理サーバと、を備え、管理サーバは、応募応答の数が予め定めた必要数未満であれば、リアルタイム情報の送信を許可する正規IDを、応募応答の送信元のプローブカー端末に送信するID割当部を備え、応募応答は、正規IDの割り当てを要求する応答であり、プローブカー端末は、前記応募応答を行うか否かを定めた応募ポリシを保持し、当該応募ポリシに従って、前記ビーコン応答を送信する。【選択図】 図2
TRAFFIC INFORMATION COLLECTING SYSTEM
交通情報収集システム
2021-09-30
Patent
Electronic Resource
Japanese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |