摘要
在航空电子系统高度集成化的背景下,为满足复杂数据交互对网络可靠性与实时性的严苛需求,文中以提升机载光纤通道技术(Fibre Channel, FC)网络数据传输可靠性为目标,深入研究FC协议架构,剖析冗余调度管理的核心机制,构建双冗余网络架构。通过理论分析与工程实践验证,冗余调度算法在复杂航空环境下展现出优异性能。实际应用表明,该算法显著提升了FC网络在链路故障等异常条件下的可靠性,并具备简洁性、精准度、稳定性等显著优点。在机载FC网络的频繁发生流量控制时,依然能保障冗余管理机制的有效性和任务数据传输的实时性,具有很高的实用价值,实现了设计的要求。
In the context of highly integrated avionics systems,where complex data interactions demand stringent network reliability and real-time performance,designing an efficient redundancy management algorithm for Fiber Channel(FC)networks is of critical importance.Aiming to enhance the reliability of data transmission in airborne FC networks,this paper conducts in-depth research on the FC protocol architecture,dissects the core mechanisms of redundancy scheduling management,and constructs a dual-redundancy network architecture.Based on the FC-AE-ASM protocol,an 8-bit Sequence Number(SN)with a range of 0~255 is defined.The sender increments the SN sequentially for each data frame,while the receiver employs dynamic validation to ensure the ordered delivery and uniqueness of frames,addressing transmission delays caused by link congestion or outages in redundant paths and guaranteeing real-time synchronous data transmission across dual networks(A and B).Through theoretical analysis and engineering practice,the proposed redundancy scheduling algorithm demonstrates excellent performance in complex aviation environments:the receiver accurately identifies valid frames,avoiding duplicate processing and data loss;the sender achieves dynamic load balancing across dual ports under flow control scenarios,keeping data transmission latency within acceptable limits.Practical applications show that the algorithm significantly improves the reliability of FC networks under abnormal conditions such as link failures,featuring simplicity,precision,stability,and robustness.Even when frequent flow control occurs in airborne FC networks,it effectively maintains the validity of redundancy management mechanism and real-time performance of mission-critical data transmission,exhibiting high practical value and fully meeting the design requirements.
作者
牛泽田
白焱
孙翔宇
孙万录
NIU Zetian;BAI Yan;SUN Xiangyu;SUN Wanlu(Shenyang Hangsheng Technology Co.,Ltd.,Shenyang 110035,China;No.1 Military Representative Office of Equipment Department of PLA Airforce in Shenyang,Shenyang 110850,China;Shenyang Aircraft Design&Research Institute,Shenyang 110035,China)
出处
《飞机设计》
2025年第5期76-80,共5页
Aircraft Design
