【摘要】 比较了航空电子环境FC(FC-AE)高层五种协议的特点、适用范围、通用性、技术支持性,说明FC轻量协议(FC-LP)适合航电通信的原因。论述了FC-LP的组成与特点:引入了FC节点访问标识和虚拟通道的概念,将通信模式确定为分布对等模式,增加了通道控制、信息传输流控、节点访问标识管理等协议流程,限定了FCP、FC物理层、FC仲裁环、FC交换接口标准功能的不同实现要求。总之,FC-LP通信协议具有高可靠、高效率、低延时的特点,能满足强时性和高可靠性飞机航空电子系统通信需求。更多还原

【Abstract】 In this paper,five high-level protocols including principle,feature,scope,commonality,technical support for FC-AE are compared,and reasons for FC-LP which better fit to avionics communication is presented.The composition and features of FC-LP are studied.The node access point ID and virtual channels are introduced,the distributed equality communication model is built,the channel control,information transmission control,node access point ID management are incremented,and the function requirements to FCP,FC-PH,FC-AL,FC-SW are specified in FC-LP.FC-LP has characteristics of high-reliability,high-efficiency and low-latency,and can satisfy communication requirements of strong-real-time and high-reliability avionics.更多还原