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

Claim 0:
1. An aircraft time synchronization system, wherein the 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;
a communication line, performing data transmission between the first communication module and the second communication module;
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;
the first communication module sends data information to the second communication module via the communication line, and at the same time sends a triggered interruption signal to the second communication module via the interruption signal line; wherein the data information contains a sending time when the data information is sent and the interruption signal is triggered;
the second communication module determines a communication time difference and a system time difference with the first communication module according to receiving time of the data information and the interruption signal, and the sending time, and performs 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.