利用网络自协商信号实现网络故障断点检测  

Network fault breakpoints detection based on the auto-negotiation signal

作　　者：王云才[1] 魏荷娟[1] 赵彤[1] 王安帮[1] 

机构地区：[1]新型传感器与智能控制教育部重点实验室,太原理工大学物理与光电工程学院,太原030024

出　　处：《深圳大学学报（理工版）》2013年第5期508-513,共6页Journal of Shenzhen University(Science and Engineering)

基　　金：国家自然科学基金资助项目(60908014);山西省科技攻关资助项目(20100321055-02)~~

摘　　要：报道一种基于网络自协商信号检测网络线缆故障位置、类型及阻抗失配的新方法,利用网络系统中的自协商信号替代传统反射测量法中的外部信号,通过相关运算实现网络线缆故障测量.以RGS2828G交换机的自协商信号为例,实验测量非屏蔽双绞线不同长度的断点距离,其定位的相对标准偏差为0.29%.此方法可同时测量阻抗失配情况,实现故障类型判断,为网络故障检测提供新思路.A new method of detecting the location, type and impedance mismatching of the network cable fault based on the auto-negotiation signal is presented in this paper. Replacing the external signal of the traditional reflectometry with the auto-negotiation signal in the network system, the detection of network fauk breakpoints is realized by the correlation method. Different fault points of the unshielded twisted pair are located experimentally by utilizing the au- to-negotiation signal of RG-S2628G switch, and the relative standard deviation of fault location is determined to be 0. 29%. The experiment results also show that the value and location of impedance mismatching and the fault type can be determined. Our method provides a new idea for network fault detection.

关 键 词：测试计量技术及仪器 局域网故障检测 网络自协商信号 快速链路脉冲 非屏蔽双绞线 时域反射 相关法 网络断点 故障定位 

分 类 号：TN06[电子电信—物理电子学]