PROBLEM TO BE SOLVED: To provide a roadside communication device capable of properly selecting a time synchronization system.SOLUTION: A roadside communication device 2 for performing time synchronization with another roadside communication device 2 includes a synchronization processing part 20 for selectively performing GPS synchronization by a 1PPS signal outputted by a GPS receiver 13 and air synchronization by time information included in a reception signal from the other roadside communication device 2 in accordance with "positioning quality" being information showing a state of positioning by the GPS receiver 13.SELECTED DRAWING: Figure 6
【課題】時刻同期の方式を適切に選択することができる路側通信機を提供する。【解決手段】他の路側通信機2と時刻同期を行う路側通信機2であって、GPS受信機13による測位の状態を示す情報である「測位品質」に応じて、GPS受信機13が出力する1PPS信号によるGPS同期と、他の路側通信機2からの受信信号に含まれる時刻情報によるエア同期とを選択的に行う同期処理部20を備えている。【選択図】図6
ROADSIDE COMMUNICATION DEVICE
路側通信機
2016-08-18
Patent
Electronic Resource
Japanese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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