Based On Lonworks Technology Virtual Network Performance Tester Design And Realization

The performance test is to find out the factor of effecting the networks performance .Performance analyse is the base and precondition of how to optimize the network performance.In the power line carrier network,it's very far-ranging to test network performance by power line communication analysis apparatus PLCA-22,protocol analysis apparatus LonManager and LonScanner.But they are very expensive and can't be popularized.So because of it,I design a performance test virtual system of power line carrier communication network.The performance test virtual system of power line carrier based on LonWorks locale control technology.The syetem is structure of modularity,it can be used to test all kinds of parameters of network performance according to your different requirements.In the LonMaker operation system and distributed database management system,the software of the system adopts Object Oriented programme.It can be run in Windows 2000 system credibly.First the dissertation analyzes and compares the actuality of the performance of the power line carrier network,then put forward the principle of the test system , configuration of the hardware and design of the software of the system.So I analyze the theory of the test system by testing the time delay,and analyze the factor which effect the time delay.Then narrate how to test the bandwidth and probability of error-code briefly. Then test the time delay bandwidth and probability of error-code of power line carrier conmmunication network by PLCA-22 protocol analyse apparatus to testify the validity of the system.At last I compare the results tested by the performance test virtual system and PLCA-22 apparatus respectively,and analysis the virtue and shortage of the performance test virtual system,then bring forward the means to improve.