AFDX交换机测试系统的原理及方法  

The principle and the method of AFDX switch testing system

作　　者：陈芳芳[1] 

机构地区：[1]北京汉通达科技有限公司,北京100089

出　　处：《国外电子测量技术》2009年第6期79-82,共4页Foreign Electronic Measurement Technology

摘　　要：AFDX是空客公司根据航空电子发展的需求以以太网为基础,通过在实时性、可靠性等方面进行改进而建立起来的一种高性能航空数据总线,基于该总线的航空电子系统通过AFDX总线交换机可实现终端间的网络化互联。在实际应用中,由于AFDX总线交换机的性能指标直接影响着整个系统的传输性能,因此需要对AFDX总线交换机的性能进行综合测试。为此,本文首先详细的介绍了ARINC664协议对AFDX交换机功能和性能的分解,进而对AFDX交换机的测试需求及测试方法进行了分析,在此基础上,构建了一套AFDX交换机测试系统,并对其软硬件组成及测试方法进行了详细介绍。AFDX is designed by Airbus based on the Commercial Switched Ethernet. Considering of the requirement of Avionics, Airbus designers modified the Commercial Switched Ethernet and make it real-time and reliability. AFDX End Systems are connected with each other through AFDX Switch, which takes great response for the transmission performance of the whole system. So it is essential to test the functions and the performance of the AFDX Switch. It is described in detail how to separated the functions and performance of the switch from the ARINC664 Protocol Part 7, and how to realize the testing for those functions and performance. It is also described the architecture of the software and hardware for the testing system. At the end, a prospect for the AFDX produces and the testing system are given.

关 键 词：AFDX总线 AFDX交换机 测试系统 测试方法 

分 类 号：TN915.06[电子电信—通信与信息系统]