A method for fault detection and reconfiguration of avionics system interaction channels

By employing an interactive channel combining FC bus, CAN bus, and Ethernet in the avionics system, faulty channels can be detected and reconstructed in real time, thus solving the problem of operational instability caused by single-channel failure in the avionics system and improving the system's reliability and robustness.

CN117111587BActive Publication Date: 2026-07-03TIANJIN JINHANG COMP TECH RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN JINHANG COMP TECH RES INST
Filing Date
2023-09-26
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Faulty connection lines in existing avionics systems can cause the system to malfunction, affecting critical aircraft performance and potentially causing damage. There is a lack of effective fault detection and reconfiguration mechanisms to improve system reliability.

Method used

The interactive channel combines three communication methods: FC bus, CAN bus, and Ethernet. By sending and receiving fault detection signals, it can determine channel faults in real time and reconstruct the interactive channel according to the channel status, ensuring reliable transmission of control information between functional execution devices.

Benefits of technology

It improves the reliability and robustness of the avionics system, ensuring timely switching to other channels in the event of a single channel failure, maintaining reliable exchange of control information, and enhancing the operational stability of the system.

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Abstract

This application discloses a fault detection and reconfiguration method for an avionics system interaction channel, comprising the following steps: A control management device sends a fault detection signal transmission command to each functional execution device via an FC bus, CAN bus, and Ethernet, to obtain fault detection signals transmitted by each functional execution device according to the fault detection signal transmission command; the control management device determines, based on each fault detection signal, whether control information can be exchanged between the control management device and each functional execution device via the FC bus, CAN bus, and Ethernet, the control information including control commands sent by the control management device to each functional execution device to implement corresponding functions, and data sent by each functional execution device to the control management device according to the control commands; the control management device determines, based on the operating status of the FC bus, CAN bus, and Ethernet, whether and how to reconfigure the control information interaction channel to ensure control information interaction between it and each functional execution device.
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