用于光传操纵系统的超高速实时光纤网络研究

综合星型及环形拓扑结构的优点,提出一种用于光传操纵系统的超高速实时光纤网络设计方案。所给出的余度设计及分布式共享内存策略增强了整个光传系统的可靠性及容错性能。应用动态数据分组技术既提高了小数据量的传输效率,又提高了大数据量突发传输时的吞吐量。实际性能测试及地面物理飞行仿真验证表明,系统数据传输速率可达2.12Gbps,具有很强的实时性及信息传输确定性,适应了机载环境下光传飞行控制及航空电子系统不断发展的需求。

Research on ultrahigh-speed optical fiber real time network for fly-by-light system

A real time Ultrahigh-speed optical fiber network design concept is proposed for fly-by-light system in this paper. The advantages of the star and ring topology structure are integrated. Redundancy design technology and distributed shared memory strategy are used to enhance the reliability and fault-tolerance capability of the whole system. The built-in dynamic data packet concept cannot only increase the efficiency of little data transfers, but can also increase the throughput of burst data transfers. Performance testing and ground flight simulation indicate that the system has excellent real-time and deterministic capability at rates up to 2.12Gbps and it can meet the increasing requirements of fly-by-light and avionics system.