航电中继系统多通道ARINC429总线故障注入方法

ARINC429 Bus Fault Injection Method in Multi-channel of Avionics Relay System

摘要:

针对民用飞机航电系统集成测试中多通道故障并行注入的问题,研究ARINC429总线故障注入方法并实现功能设计。首先,分析航电中继系统的数据交互方式,设计基于航电中继系统的故障注入架构,研究基于反射内存通信网络的多通道并行故障注入方法；然后,分析ARINC429总线在协议层和应用层的故障类型和对应的注入方式,并完成故障注入功能的逻辑设计；最后,基于航电中继系统搭建故障注入实验平台,进行故障注入实验。实验结果表明,所研究的故障注入方法能够有效完成多设备、多通道航电总线在协议层和应用层的低延时故障注入,满足航电系统集成测试的要求。

Abstract:

Aiming at the problem of multi-channel fault parallel injection in Avionics System integration test of civil aircraft, a fault injection method of ARINC429 Bus is studied and its function is designed. Firstly, the data interaction mode of avionics relay system is analyzed, and the parallel multi-channel fault injection method based on reflective memory communication network is studied, and the fault injection architecture based on avionics relay system is designed. Then, the fault types and corresponding injection methods of ARINC429 Bus in protocol layer and application layer are analyzed, and the logic design of fault injection function is realized. Finally, a fault injection experiment platform is built based on avionics relay system to carry out fault injection experiment. The experimental results show that the fault injection method can effectively complete fault injection of multi device and multi-channel avionics bus with low delay in protocol layer and application layer, and meet the requirements of Avionics System integration test.