多通道网络传输数据断点区域检测方法研究

Research on breakpoint area detection method for multichannel network transmission data

多通道网络系统具有更强的网络数据传输性能,但由于节点间的通道链路十分复杂也增加了网络出现断点故障的风险。传统断点区域检测方法在故障定位精度和检测耗时方面缺乏优势,而且还会增加检测成本。为此提出一种基于模极大值的多通道网络数据传输断点区域检测方法研究,在分析多通道网络拓扑结构的基础上,于多通道网络的关键节点处部署主动探针,提取断点区域检测故障集;基于模极大值方法求解故障集中的通信信号的奇异值,分析数据信号频率幅值变化,进而准确识别出节点风险区域内的传输断点位置。实验结果证明,提出的断点故障检测方法的定位检测偏差能够被控制在7.5%之内,在定位延时和漏检率方面相比传统方法也具有明显优势。

Multichannel network system has stronger network data transmission performance,but the complex channel links between nodes also increase the risk of network breakpoint failure.Traditional fault location methods lack advantages in fault location accuracy and detection time- consuming,and increase detection costs.In this paper,a breakpoint region detection method for multi-channel network data transmission based on modulus maxima is proposed.On the basis of analyzing the topological structure of multi- channel network,active probes are deployed at the key nodes of multi- channel network to extract the breakpoint region detection fault set.Communication signals in the fault set are solved based on modulus maxima method.The singular value of the signal is used to analyze the change of the frequency and amplitude of the data signal,and then the transmission breakpoint position in the node risk area is accurately identified.The experimental results show that the location error of the proposed fault detection method can be controlled within 7.5%.Compared with the traditional method, the proposed method has obvious advantages in location delay and missed detection rate.