FC-AE-1553协议的星型光耦合拓扑支持研究

发布时间：2018-04-13 05:06

本文选题：FC-AE-1553 + 光纤通道　；参考：《电子科技大学》2015年硕士论文

【摘要】：针对航电系统开始采用模块化、综合化、开放式系统结构的设计趋势,对网络带宽,时延性,扩展性,功耗,以及成本等指标提出了越来越高的要求,尤其是对低成本、低功耗的航电网络技术的需求也越来越迫切。基于光纤通道技术的FCAE-1553协议网络,由于其高带宽,低延迟,以及良好的扩展性使其逐渐被应用于当代的航电网络领域中。但交换式FC-AE-1553网络的高功耗、高成本等缺点也带来了很大的局限性,特别是对于功耗极度敏感的航天系统,其缺陷更加明显。本论文在深入分析了FC-AE-1553协议的相关技术特点后,针对低成本、低功耗、组网灵活的星型光耦合拓扑进行了FC-AE-1553的扩展支持研究。主要内容为:1.设计了一种FC-AE-1553协议在星型光耦合拓扑下的扩展支持方式,并对该拓扑网络下的FC-AE-1553协议栈进行了相应的兼容性扩展设计,主要包括链路传输的设计,链路同步与端口的注册登录,交换传输方式的设计,网络控制算法的改进,终端故障的检测,以及节能设计等。2.针对星型光耦合拓扑结构下扩展FC-AE-1553网络的性能表现,通过MATLAB工具对不同拓扑下的网络组网进行了建模和仿真,并分析了不同拓扑网络的组网成本、节点可扩展性、任务可靠性、网络时延性、以及网络功耗。通过与三种标准拓扑进行了优劣对比分析,结果表明该星型网络拓扑下的扩展FC-AE-1553协议网络具有低功耗,低成本的显著优点。3.研究了星型光耦合拓扑结构下扩展FC-AE-1553协议的网络节点硬件实现方法,本文使用FPGA来实现了扩展FC-AE-1553协议栈的逻辑电路设计,并提供了存储器地址的读写定义作为上层系统的调用控制接口。最后通过在星型光耦合拓扑网络下的多节点组网进行了相应的传输功能测试,结果表明该节点硬件实现方案能有效支持星型光耦合拓扑结构。
[Abstract]:Aiming at the trend of modularization, integration and open architecture of avionics system, the network bandwidth, delay, expansibility, power consumption and cost are required more and more, especially for low cost.The demand of low power avionics network technology is more and more urgent.Because of its high bandwidth, low delay and good expansibility, FCAE-1553 protocol network based on fiber channel technology has been gradually applied in the field of avionics network.However, the shortcomings of switched FC-AE-1553 networks, such as high power consumption and high cost, also bring great limitations, especially for space systems with extremely sensitive power consumption.In this paper, the characteristics of FC-AE-1553 protocol are analyzed in depth, and the extended support of FC-AE-1553 is studied for the low cost, low power consumption and flexible star optical coupling topology.The main content is: 1.In this paper, we design an extension support mode of FC-AE-1553 protocol in star optical coupling topology, and design the compatibility extension of FC-AE-1553 protocol stack in this topology network, including the design of link transmission, link synchronization and port registration, and the corresponding compatibility extension design of the FC-AE-1553 protocol stack under the topology network, including the design of link transmission, the registration and login of link synchronization and port.Switch transmission mode design, network control algorithm improvement, terminal fault detection, and energy saving design. 2. 2.Aiming at the performance of extended FC-AE-1553 network under star-optic coupling topology, the network construction under different topologies is modeled and simulated by MATLAB tool, and the network cost, node extensibility and task reliability of different topology networks are analyzed.Network delay, and network power consumption.By comparing with the three standard topologies, the results show that the extended FC-AE-1553 protocol network under the star network topology has the advantages of low power consumption and low cost.In this paper, the hardware implementation method of extended FC-AE-1553 protocol based on star optical coupling topology is studied. In this paper, the logic circuit design of extended FC-AE-1553 protocol stack is implemented by using FPGA.And provides the memory address read and write definition as the upper system call control interface.Finally, the transmission function of the multi-node network under the star optical coupling topology network is tested. The results show that the node hardware implementation scheme can effectively support the star optical coupling topology.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：V243

【参考文献】