Ping命令下多媒体网络故障被动诊断方法仿真

摘要

A passive diagnosis method of multimedia network fault is proposed based on Ping command.Fuzzy theory under Ping command is introduced to carry out fuzzy processing for signal delay of the fault,and a model for residual error problem of observation parameter of the fault signal is built,then optimal objective function of the fault diagnosis is acquired.In addition,the optimal solution of model integrated with quasi-Newton method and bat algorithm is obtained,and threshold value of the residual error is set.On that basis,the passive diagnosis of fault is completed.Simulation shows that the method has high diagnosis precision.It can ensure operation quality of multimedia network.%为了有效地保障多媒体网络运行质量,需要进行多媒体网络故障诊断方法的研究.但是采用当前方法进行故障诊断时,无法考虑到故障延时特性,存在故障被动诊断准确率下降的问题.为此,提出一种基于Ping命令下多媒体网络故障被动诊断方法.上述方法在Ping命令下引入模糊理论对多媒体网络故障信号延迟进行模糊化处理,组建多媒体网络故障信号观测参数的残差问题模型,获取多媒体网络故障诊断的最优目标函数,结合拟牛顿法和蝙蝠算法得到模型的最优解,设置残差阀值,并完成对Ping命令下多媒体网络故障被动诊断.仿真证明,所提方法诊断精度高,可以有效地保障多媒体网络的运行质量.