AFDX端系统关键技术的研究与实现

Research and Implementation of Key Techniques in AFDX End System

分析AFDX协议关键技术,围绕其端系统的构建,给出一个实用的AFDX端系统架构。针对AFDX的地址映射和实时性机制,提出AFDX端系统关键模块的发送协议处理算法和流量整形综合调度算法。基于Linux操作系统,对该AFDX端系统架构进行仿真验证,结果证明其较好地满足了航空电子网络数据传输的实时性和可靠性需求。

This paper concentrates on the construction of AFDX End System（ES） and brings out a sound framework based on analysis of crucial techniques of AFDX protocol. It designs and implements Tx protocol processing algorithm and traffic shaping-scheduling algorithm of key modules in AFDX ES for address mapping and real-time mechanism. The results of simulation on Linux OS confirm that this framework can meet reliability and real-time requirements of avionics data transmission.