基于PCM的电缆线路自动监测系统的构建  

Building of Cable-line Auto-System Based on PCM

作　　者：孙世国[1] 张小军[1] 李春亮[1] 熊飞[1] 

机构地区：[1]北京航天飞行控制中心,100094

出　　处：《微计算机信息》2009年第4期95-96,284,共3页Control & Automation

摘　　要：PCM专网具有保密性强、不受商业通信网的限制等特点,但是其本身并不具备用户电缆线路故障自检功能。本文构建了基于PCM的电缆线路自动监测系统,解决了PCM专网不能故障自检的问题。采用基于信号的故障识别方法,实现了专线电话电缆线路故障的快速定位。使用证明:该系统可靠性好、安全性高、组网灵活,故障发现由被动变主动,保证了专网的通信畅通。PCM special telephone net is well-secrecy and independent on business telecom. But it can not self-check. This paper builds the cable-line auto-check system based on PCM. The system can self-check. It adopt the way of failure＇s identify based on signal and orientate quickly the failure of special telephone line. The result shows that it is a system with high reliability,well security and free framework. It can find malfunction forwardly not but passively, thereby it ensures that the special communication is expedite.

关 键 词：PCM 监测 单片机 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]