The vehicle-mounted device is mounted on a vehicle, and includes: a real-time requirement degree determination unit that determines a real-time requirement degree related to reception data received from outside of the vehicle; an elapsed time calculation unit that calculates an elapsed time, which is the time from the generation of the original data of the received data to the reception of the received data by the in-vehicle device; an estimated time calculation unit that calculates an estimated time that is the time from the reception of the received data to the start of the use of the received data; and an availability determination unit that determines the availability of the received data on the basis of a real-time requirement degree, the elapsed time, and the estimated time, the real-time requirement degree indicating the permissible degree of the delay time from the generation of the original data to the use of the received data, the received data being added with time information for specifying the time at which the original data is generated, and the estimated time being greater than the real-time requirement degree. The elapsed time calculation unit calculates the elapsed time on the basis of the reception time of the reception data and the time information.
车载装置是搭载于车辆的车载装置,其中,包含:实时要求度判定部,判定与从车辆的外部接收到的接收数据相关的实时要求度;经过时间算出部,算出经过时间,该经过时间是从接收数据的原始数据的产生到接收数据由车载装置接收为止的时间;推定时间算出部,算出推定时间,该推定时间是从接收数据的接收到开始接收数据的利用为止的时间;及可利用性判定部,基于实时要求度、经过时间及推定时间而判定接收数据的可利用性,实时要求度表示从原始数据的产生到利用接收数据为止的延迟时间的容许程度,在接收数据附加有用于确定原始数据产生的时刻的时刻信息,经过时间算出部基于接收数据的接收时刻和时刻信息来算出经过时间。
In-vehicle device, in-vehicle system, server computer, control method, and computer program
车载装置、车载系统、服务器计算机、控制方法及计算机程序
2025-01-14
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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