AFDX交换机的低成本双余度交换功能设计
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摘要
介绍了非余度AFDX交换机的系统结构,针对其交换功能进行了硬件、逻辑和软件层面的细致分析,提出了三个层次的双余度AFDX交换机设计方案,经过对比分析,在单余度AFDX交换机软件层次上重新设计配置解析软件实现双余度AFDX交换功能,建立了一个低成本的双余度AFDX网络验证环境,经过实际测量和理论分析,低成本双余度AFDX网络的余度网络转发延时满足ARINC664 Part7规范对冗余数据帧最大偏移值SkewMax的要求。
Introduces the system structure of single redundancy AFDX switch, analyzes its switching function at hardware, logic and software level, and puts forward three levels of double redundancy AFDX switch design scheme. At the software level of single redundancy AFDX switch, the configuration analysis software is redesigned to realize the function of double redundancy AFDX switching. A low cost verification environment of double redundancy AFDX network is established, and the practical measurement and theoretical analysis are carried out. The redundancy network forwarding delay of low-cost double redundancy AFDX network meets the requirements of ARINC664 Part7 specification for the SkewMax of redundant data frames.
Introduces the system structure of single redundancy AFDX switch, analyzes its switching function at hardware, logic and software level, and puts forward three levels of double redundancy AFDX switch design scheme. At the software level of single redundancy AFDX switch, the configuration analysis software is redesigned to realize the function of double redundancy AFDX switching. A low cost verification environment of double redundancy AFDX network is established, and the practical measurement and theoretical analysis are carried out. The redundancy network forwarding delay of low-cost double redundancy AFDX network meets the requirements of ARINC664 Part7 specification for the SkewMax of redundant data frames.
引文
[1]ARINC Specification 664P7,ARINC 664 Aircraft Data Network,Part 7:Avionics Full Duplex Switched Ethernet(AFDX)Network[S].
[2]何向栋,白杨,田园,等.一种AFDX交换机的高效检测方法[J].微型机与应用,2017,36(24):84-86,91.
[3]姚润润.基于AFDX综合信息处理系统设计[D].成都:电子科技大学,2016.
[4]索高华,刘红红,王治,等.AFDX网络仿真系统设计与研究[J].电子技术应用,2016,42(4):18-21.
[5]何锋.机载网络技术基础[M].北京:国防工业出版社,2018.
[6]吴海荣,罗庆,陈晓晨.AFDX交换机测试分析系统设计[J].飞机设计,2014,34(3):59-62,73.
[2]何向栋,白杨,田园,等.一种AFDX交换机的高效检测方法[J].微型机与应用,2017,36(24):84-86,91.
[3]姚润润.基于AFDX综合信息处理系统设计[D].成都:电子科技大学,2016.
[4]索高华,刘红红,王治,等.AFDX网络仿真系统设计与研究[J].电子技术应用,2016,42(4):18-21.
[5]何锋.机载网络技术基础[M].北京:国防工业出版社,2018.
[6]吴海荣,罗庆,陈晓晨.AFDX交换机测试分析系统设计[J].飞机设计,2014,34(3):59-62,73.