基于USB接口的AFDX网络TAP卡设计与实现

发布时间：2018-06-03 05:21

本文选题：AFDX + USB　；参考：《测控技术》2013年05期

【摘要】：AFDX网络以其传输时间确定性、高可靠性和实时性等优点,成为新一代大型飞机航空总线的最佳选择之一。作为一种具有巨大应用潜力的新型的机载网络,AFDX网络的仿真测试至关重要。针对AFDX网络系统提出了一种TAP(test access point,测试访问接口)结构的测试卡设计方案。在设计的过程中,充分考虑了接入方式对网络传输的影响和数据捕获速率对主机接口的要求,采用串联植入方式设计出一款基于USB2.0接口的TAP卡及协议解析和数据统计软件,为AFDX网络的性能评估和系统级验证提供了方法和依据。通过在AFDX仿真验证平台中的实测结果,证明了该TAP卡具有灵活性强、测试精度高、实时性强等特点,完全满足AFDX网络测试及监控需求,为相关测试系统的研制提供了设计思路和实践经验。
[Abstract]:AFDX network has become one of the best choices for a new generation of large aircraft aviation bus for its advantages of definite transmission time, high reliability and real time. As a new type of airborne network with great potential application, the simulation and testing of AFDX network is very important. A TAP (test access point) is proposed for the AFDX network system. In the process of design, the impact of access mode on network transmission and the requirement of data capture rate on host interface are fully considered. A TAP card and protocol analysis and data statistics software based on USB2.0 interface are designed by series implantation. The performance evaluation of AFDX network and the performance evaluation of the network are designed. The system level verification provides the method and the basis. Through the measured results in the AFDX simulation verification platform, it is proved that the TAP card has the characteristics of flexibility, high precision and strong real time. It fully meets the requirements of AFDX network testing and monitoring, and provides the design ideas and practical experience for the development of the related test system.
【作者单位】：中航工业西安航空计算技术研究所;
【基金】：总装“十二五”预研项目(51308010601) 中国航空工业集团公司技术创新基金项目(2010DD63111)
【分类号】：TP273;TP393.11

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