基于电阻网络的网线故障检测装置研究

Research on Cable Fault Detector Based on Resistor Networks

文章阐述了一种基于电阻网络的网线故障检测装置,基于电学原理在网线周围构造电阻网络,并结合电阻一次性测量方法,使其在没有短路或断路状态时测得的阻值与网线内部有短路或断路的坏网线情况下所测得的阻值不相同。通过实验确定出网线良好时的电阻阻值,并将该阻值作为基础与以后的检测值作为比较。此方法克服了传统检测方式中的繁琐过程,提出了新型的网线状态判断方法,实现了低成本。

This paper describes a cable fault detection device based on a simple resistor network, which builds up a resistor network around the cable based on electricity principle, and combines with the disposable resistor measurement method, so that resulting in the difference between the measured resistance value without short circuit or open circuit condition and that of existing internal short circuit or open circuit. Through experiment the resistance when the cable is perfect is determined; the resistance is used as the basis for comparing with the subsequent detected values. This method not only overcomes the tedious process in traditional testing methods and proposes a new judgment method for network cable status, but also achieves low-cost target.