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时间触发AFDX网络的设计和实时性分析

, PP. 728-733

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Abstract:

时间触发机制可以近一步提高航空电子全双工交换式以太网(AFDX,AvionicsFullDuplexSwitchedEthernet)的确定性,保障时间关键消息具有完全的时间确定性.将时间触发机制引入了AFDX网络,设计了时间触发ADFX网络(TTAFDX,Time-TriggeredAFDX)的体系结构,包括协议栈、虚拟链路类型、端系统调度、交换机调度、透明通信机制和降级通信机制,并且设计了端系统和交换机的时刻调度算法.对TTAFDX网络从理论和仿真实验两方面进行了分析,验证了TTAFDX网络对时间关键消息的完全时间确定性的保障.

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