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一种保持时序一致的AFDX帧结构优化及算法实现

Frame structure optimization and algorithm realization of keeping temporal consistency based on AFDX
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摘要 新一代航电网络——航空电子全双工交换以太网(AFDX),是为航电信息系统之间进行数据通信而专门制定的协议标准,具有时间确定性、双余度和高可靠性等优点。在分析ARINC 664 Part7规范、通信结构和SN等关键技术的基础上,结合SAE AS6802[2]协议算法,提出一种保持多节点发送时序一致的AFDX帧结构。采用OPNET网络拓扑仿真实现,结果满足帧数据时序一致性要求。 Avionics Full Duplex Switched Ethernet( AFDX),an avionics specified Ethernet communication protocol standard,is the new generation aircraft data network,with the feature of time determinability,redundant and high reliability and so on. This paper analyzes the characteristics of the ARINC 664 Part7,communication structure and sequence number,and with the algorithm of SAE AS6802,brings forward an implementation methods of keeping temporal consistency based on AFDX frame structure optimization. Then it is simulated by OPNET. The result verifies the temporal consistency of the frame structure.
出处 《微型机与应用》 2016年第18期62-65,共4页 Microcomputer & Its Applications
关键词 帧结构 AFDX网络 OPNET仿真 序列号 frame structure AFDX network OPNET simulation sequence number
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