低压电力线通讯网络技术发展的研究

摘要

Carrier communication over high voltage power line has been developing for near one hundred years .It has many applications for voice communication in power distribution,data collection from tele-control instrumentation,and so on.However,using power line within one transformer area to provide Internet access is a just recent development.Power Line Communications Networks(here after,“PLC Networks”)addressed in this dissertation include technologies that use the low voltage power lines to carry data transmissions or establish a computer network.PLC Networks,due to the ubiquitous nature of Power lines,present a solution to providing wide reaching Internet access,which have important technological and economic implications.%　　高压电力线载波通信已有近百年的历史，它在电力调度话音通信、电力系统远动装置数据采集等方面取得了卓有成效的应用，但是利用一个台区的低压电力线建立Internet接入网是近几年来国际上刚刚兴起的技术。本文论述的电力线通信(Power Line Communications)计算机网络(以下简称PLC网络)是以电力线为通信介质实现数据传输或建立计算机网络的相关技术研究。由于低压电力线的普及程度比其他任何通信介质都广泛，研究电力线作为信息传输介质在技术和经济方面都有十分重要的意义。