An unmanned container truck automatic driving system time synchronization system comprises an automatic driving domain controller, a camera, an inertial navigation system and a laser radar, and the camera is connected with the automatic driving domain controller through an MIPI interface; the inertial navigation system is connected with the automatic driving domain controller through an RS232 serial port line; the laser radar is connected with the automatic driving domain controller through an RS232 serial port line; the time synchronization of the automatic driving domain controller and the multiple laser radars is solved by distributing PPS to the main SOC and the auxiliary SOC through a CPLD (Complex Programmable Logic Device) in the controller, distributing the PPS to the main SOC and the auxiliary SOC through a plurality of RS232 chips, sending GPRMC signals to the multiple laser radars and sending the GPRMC to the main SOC and the auxiliary SOC through a UDP (User Datagram Protocol), and the time synchronization of the automatic driving domain controller and the multiple laser radars is realized by adopting an internal clock source and using NTP (Network Temporary Protocol) service for synchronization through double clock source setting under the condition of abnormal GPS time service, so that the time synchronization of the automatic driving domain controller and the multiple laser radars is realized. Under the normal condition of GPS time service, GPS time service is adopted, and the problem of abnormal system time under the abnormal condition of the GPS is solved.

一种无人集卡自动驾驶系统时间同步系统，包括：自动驾驶域控制器、摄像头，惯导系统和激光雷达，其中：所述摄像头与自动驾驶域控制器之间通过MIPI接口相连；所述惯导系统与自动驾驶域控制器通过RS232串口线连接；所述激光雷达与自动驾驶域控制器通过RS232串口线相连；通过控制器内部CPLD分发，将PPS对内分给主SOC和副SOC，通过多RS232芯片分发，将GPRMC信号发送给多激光雷达，通过UDP将GPRMC发送给主SOC，副SOC，解决了自动驾驶域控制器及多激光雷达的时间同步，通过双时钟源设置，在GPS授时异常的情况下，采用内部时钟源，并用NTP服务进行同步，在GPS授时正常情况下，采用GPS授时，解决了GPS异常情况下系统时间异常的问题。