一种飞行试验AFDX航电系统的采集网络时延测试方法

全双工交换以太网AFDX正逐渐取代传统的1553B,成为新一代航电系统的构架协议;AFDX总线具有以太网的时延特点;飞行试验对航电系统的采集网络数据时间延迟测试有特殊的需求,针对飞行试验测试的特点,提出了一种飞行试验AFDX航电系统的采集网络时延测试方法,解决了航电AFDX采集网络时延测试难题;通过对某试验机的AFDX采集网络时间延迟测试,提高了飞行试验某AFDX航电子系统的试验计算精度,证明了该方法在工程中的有效性.

A Testing Method of Measuring Time Delay Caused by Data Acquiring Network for the Flight Test AFDX Avionic System

Full duplex switched Ethernet AFDX is the architecture of the new generation avionics system,which is gradually replacing the traditional 1553B.AFDX bus has the characteristic of Ethernet delay.Flight test has special needs for the test of avionics AFDX network delay.According to the characteristics of flight test,a method for testing avionics AFDX network delay generated by the collection is presented to solve the problem of latency test.This method is applied to an aircraft delay test,which improves the experimental accuracy of an avionics system,and demonstrates the effectiveness of this method in engineering.