The invention discloses a synchronization system and a synchronization method for an automatic driving system, the synchronization system comprises V2X equipment, domain controller equipment and high-precision RTK equipment, and the high-precision RTK equipment is used for inputting time synchronization and positioning signals to the synchronization system. The domain controller equipment further comprises a 1PPS clock synchronization unit and an automatic driving domain controller equipment master controller, and the 1PPS clock synchronization unit is used for receiving a 1PPS second pulse signal in a time synchronization signal sent by the high-precision RTK equipment; and when the quality of a 1PPS second pulse signal in the time synchronization signal of the high-precision RTK equipment does not meet a preset condition, generating an analog signal of the 1PPS second pulse signal, and respectively inputting the analog signal into V2X equipment and automatic driving domain controller equipment master control. According to the invention, on one hand, the automatic driving system can be ensured to have high-precision synchronization performance when the GPS signal is lost for a short time, and on the other hand, the number of used GPS antennas can be reduced, and the difficulty of mounting the antennas on the roof is reduced.
本申请公开了一种用于自动驾驶系统的同步系统、同步方法,所述同步系统包括V2X设备、域控制器设备以及高精RTK设备,所述高精RTK设备用于向所述同步系统输入时间同步和定位信号,所述域控制器设备还包括1PPS时钟同步单元和自动驾驶域控制器设备主控,所述1PPS时钟同步单元,用于接收所述高精RTK设备发送的时间同步信号中1PPS秒脉冲信号;以及在所述高精RTK设备的所述时间同步信号中1PPS秒脉冲信号的质量不满足预设条件时,生成所述1PPS秒脉冲信号的模拟信号,并分别输入V2X设备和所述自动驾驶域控制器设备主控。通过本申请一方面可以在GPS信号短期丢失时,可以保证自动驾驶系统有较高精度的同步性能,另一方面可以减少GPS天线使用数量,降低车顶安装天线的难度。
Synchronization system and synchronization method for automatic driving system
用于自动驾驶系统的同步系统、同步方法
2023-08-01
Patent
Electronic Resource
Chinese
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