基于AFDX的潜用水声传感器信息传输网络

摘要

For enhancing submarine's sense ability, kind, data and quantity of submarine acoustic sensor are increasing. For sensors' information amalgamation, more sensors' data uploaded to the network, more efficiency and real time of the network, existing campaign system network have to be upgraded to AFDX ( Avionics Full-duplex Switched Ethernet Network). AFDX network and its guarantee mechanism of real time capability, for example virtual link( VL) and rate shaping,were studied. Finally one example was gave to show, that AFDX network can transfer big flux data of many sensors, at the same time, the key data of campaign system commands can be transferred real time and reliably.%为了提高潜艇的侦测能力,潜用水声传感器种类和数量在日益增加,其数据量也在成倍地增加.尤其是为了进行更好的多传感器信息融合,更多的传感器原始数据上传到网络,并使网络更加高效实时,需要对现有的作战系统网络结构进行升级.本文介绍了航空电子盒双工交换式以太网(Avionics Full-duplex Switched Network,AFDX)虚拟链路(VL)及流量整形等实时性能的保证机制.最后通过1个实例说明,采用AFDX网络既能很好地完成多传感器大流量数据的实时传输,同时又不影响网络对作战系统命令等关键数据进行实时可靠地传输.