摘要： 介绍了以低压载波为基础,集用户的用电量采集、可靠性统计、电压监测于一体的远程自动抄表系统。整个系统分3个组成部分:采集终端,集中器,主站系统。提出了采用扩频技术和自动路由来解决低压线路的噪声干扰和信号衰减的方案。该系统的应用实例证明了其可行性。

关键词: 低压载波, 扩频技术, 自由路由

Abstract: The paper introduces a long-range auto read-meter system, which is based on low- voltage power line carrier and it integrates power consumption figure gathering, reliability statistics, voltage monitoring into one system. The system is composed by three parts, which are gathering terminal, lumped instrument, master station system. The paper also presents a scheme which uses expending frequency technology and random router to solve the following problem, such as noise jamming of secondary voltage power line and signal attenuation. Finally, the trial operation of this system demonstrateds its feasibility.

中图分类号: 

• TP274.2