电力线载波通信方案设计

低压电力线载波通信既有明显的优势，又存在着强的噪声干扰，导致高的误码率，制约着它的推广应用。本文从有效提高通信成功率出发，提出了过零点通信、静态软件中继技术、通信时段选择等概念，并给出了三级系统的设计方案，可较大幅度地提高系统的性价比。文中还给出了测试数据。实践结果表明，上述措施是有效的。

The designing scheme of power line carrier communication

Low voltage power line carrier communication possesses outstanding advantageous,at the same time existsd higher bit error rate caused by strong noise and interference, and this restricts its application and dissemination. So in view of increasing the successful rate for communication effectively, this paper brings forward some ideas such as communication during voltage across zero point, static software relay and communication during suitable time log,and provides the designing scheme of a three-class system as well so that the cost per performance for the system are greatly improved.Related experimental data are also attached in this paper, and its result shows that above-mentioned measures are effective.