Patent ID: 11877253
Assignee: AUTEL ROBOTICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 6:
7. An aircraft time synchronization system comprising:
a first communication module, sending a data information and a triggered interruption signal;
a second communication module, receiving the data information and the triggered interruption signal;
the second communication module communicatively connected to the first communication module via a communication line, and an I/O interface of the first communication module is connected to the I/O interface of the second communication module via an interruption signal line;
one or more processors; and
a memory communicatively connected to the one or more processors, configured to store one or more programs;
the one or more programs, when executed by the one or more processors, causing the one or more processors to:
receive data information and the interruption signal sent by the first communication module; wherein the first communication module sends the data information to the second communication module via a communication line, and at the same time sends a triggered interruption signal to the second communication module via the interruption signal line, and the data information contains a sending time when the data information is sent and the interruption signal is triggered;
determine communication time difference and system time difference with the first communication module according to the receiving time of the data information and the interruption signal, and the sending time;
performing time synchronization with the first communication module according to the communication time difference and the system time difference;
the communication time difference is a time difference between the receiving time of the data information received by the second communication module and the receiving time of the interruption signal received by the second communication module; and
the system time difference is a time difference between the receiving time of the interruption signal received by the second communication module and the sending time of the interruption signal sent by the first communication module.