Aircraft time synchronization system and method

Abstract

The embodiment of the invention discloses an aircraft time synchronization system and method. The system comprises a first communication module and a second communication module, data transmission iscarried out between the first communication module and the second communication module through a communication line, and an I / O interface of the first communication module is connected with an I / O interface of the second communication module through an interrupt signal line; the first communication module sends data information to the second communication module through a communication line, and sends a triggered interrupt signal to the second communication module through an interrupt signal line, wherein the data information comprises sending time when the data information is sent and an interrupt signal is triggered; and the second communication module performs time synchronization with the first communication module based on the determined communication time difference and system time difference with the first communication module according to the data information and the receiving time and sending time of the interrupt signal. Accurate time synchronization among different communication modules of the aircraft is realized, so that the movement of the aircraft is accurately controlled.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of aircraft, and in particular to an aircraft time synchronization system and method. Background technique [0002] With the development of science and technology, the scope of application of aircraft has become wider and wider, ranging from military use at the national level to entertainment use at the personal level. For example, the aircraft may be a drone. Usually, the aircraft includes multiple devices for collecting information such as the current position and attitude information of the aircraft and images of the environment in which it is located. After communication between these devices, motion control instructions are generated to control the subsequent motion state of the aircraft. [0003] Since these devices may be distributed in different operating systems, there may be a system time difference in the scheduling itself, and there is a communication delay between the devi...

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Problems solved by technology

[0003] Since these devices may be distributed in different operating systems, there may be a system time difference in the scheduling itself, and there is a communication delay between the devices, which will lead to asynchronous sending and receiving time of data information, resulting in the inability to accurately obtain aircraft information. The current state and control the accurate movement of the aircraft

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