The invention discloses a clock synchronization method, device and system and an intelligent vehicle. The method comprises the steps that under the condition that a GNSS module operates normally, PPS signals and time information are sent to a system-on-chip SOC and a micro-control unit MCU through the GNSS module, the system-on-chip SOC and the micro-control unit MCU synchronize the PPS signals and the time information to a connected sensor, and under the condition that the GNSS module operates abnormally, the PPS signals and the time information are sent to the GNSS module. The PPS signal and the time information are sent to the SOC through the MCU, the SOC synchronizes the PPS signal and the time information to the connected sensor, and the technical problem that the time synchronization function fails in an automatic driving application scene can be solved.
本申请公开了一种时钟的同步方法、装置及系统、智能车辆。其中,该方法包括:在GNSS模块运行正常的情况下,通过GNSS模块将PPS信号和时间信息发送给系统级芯片SOC和微控制单元MCU,由系统级芯片SOC和微控制单元MCU同步给所连接的传感器,在GNSS模块运行异常的情况下,通过微控制单元MCU将PPS信号和时间信息发送给系统级芯片SOC,由系统级芯片SOC同步给所连接的传感器,可以解决自动驾驶应用场景存在时间同步功能失效的技术问题。
Clock synchronization method, device and system and intelligent vehicle
时钟的同步方法、装置及系统、智能车辆
2023-04-25
Patent
Elektronische Ressource
Chinesisch
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