摘要
通过分析ARINC664 part 7规范中流量整形和确定性技术,设计了一种AFDX网络确定性建模与仿真方法。规划仿真流量和配置信息并运行仿真程序,测得在44.16 Mbps有效带宽时端系统虚链路的最大抖动为379μs。由此得出确定性仿真方法可以用于构建出符合ARINC664 part7协议规范的AFDX数字化端系统模型。仿真方法可为航电网络协议设计、分析或改造提供低成本且高效的验证手段和评估依据。
This paper analyzes traffic shaping and deterministic techniques in ARINC664 part 7 specification,then a method of deterministic modeling and simulation of AFDX network is designed. Planning simulation traffic and configuration information then running the simulation. It is found that the maximum jitter of the virtual link of the end system is 379 μs when the effective bandwidth of 44. 16 Mbps is available. The result shows that the deterministic simulation approach can be used to construct an AFDX digital end system which complies with the ARINC664 part 7 specification.The simulation method can provide a low-cost and efficient verification method and assessment basis for the design,analysis or modification of avionics network protocols.
作者
于峰
李雯
张逸飞
YU Feng;LI Wen;ZHANG Yi-fei(Xi＇an Aeronautics Computing Technique Research Institute,AVIC,Xi＇an 710068,China;School of Computer Science,Northwestern Polytechnical University,Xi＇an 710068,China)
出处
《航空计算技术》
2018年第4期97-99,104,共4页
Aeronautical Computing Technique
基金
航空科学基金项目资助(20101931005)
关键词
AFDX
端系统
流量整形
确定性传输
avionics full duplex switched ethernet
end system
traffic shaping
deterministic transmission
