基于RTX的网络延迟测试系统设计与实现

Design and Realization of Network Delay Test System Based on RTX

中文关键词:  网络延迟  测试系统  时钟基准  RTX

英文关键词:network delay  test system  clock reference  RTX

中文摘要:

      网络延迟对网络通信影响巨大，基于RTX实时环境，在开发了RTX下计数卡驱动的基础上，设计实现了一套网络延迟测试系统，该系统利用GPS锁晶振授时器产生的高频方波信号作为时钟基准，为发送方和接收方提供测试时钟，系统中实时处理、传输数据的进程运行在RTX环境下，在LabWindows/CVI下开发的人机交互界面来设置测试数据参数，最后将测试结果记录进文件。该测试系统不仅测出了RTX下网络传输延迟，而且提出了一种延迟测试的可靠方案，为今后的网络应用提供了有力参考。

英文摘要:

      Network delay has a huge impact on the network communication.On the basis of count card driver developed in the RTX,a set of test system of network delay is designed and implemented based on the RTX real-time environment.The system uses high-frequency square wave signal generated in the timing of the GPS lock crystal as clock reference,to provide test clock for the sender and receiver.The process of real-time processing and transferring data runs in the RTX environment,the test data parameters are set up by interactive interface developed in LabWindows/CVI.Finally the test results are recorded into file.This test system not only measures the network transmission delay in RTX,but also proposes a reliable solution of delay test,which provides a strong reference for future network applications.