【2017年整理】电力载波通信抄表集中器硬件设计.doc

电力载波通信抄表集中器硬件设计 摘 要 随着我国电力事业的迅速发展，传统的用电抄收管理方式己经不能满足市场需求。本文在大量收集查阅国内外有关远程抄表系统资料、深入用户及用电管理部门广泛调研的基础上，提出了一种采用低压电力线载波通信技术的远程自动抄表系统。该系统具有三层网络结构，即上位机管理系统、集中器和载波电表。重点分析研究了集中器及其与各组成部分的通信。由于我国低压电力线上存在的高削减、高噪声、高变形，必须采用特殊的通信技术。 本文首先分析了高频信号在电力线中的传输特性；重点讨论了扩频通信技术在电力线载波通信中的应用；深入研究了以扩频调制解调技术Abstract With the rapid development of our country electric power industry, the traditional electricity copy management way already can not satisfy the market demand. In this paper, in a large collection of information about the remote meter reading system at home and abroad In-depth users and power management on the basis of extensive research, this paper proposes a using low voltage power line carrier communication technology of remote automatic meter reading system. The system has three layers of network structure, namely the PC management system of concentrator and carrier electric meter concentrator and its injection were mainly discussed and the communication of each component. Concentrator and its injection were mainly discussed and the communication of each component Because our country on the low voltage power line with high cutting noise of the existence of deformation, must use the special communication technologies. This paper first analyzes the transmission characteristics of high frequency signal in the power line; Focus on the spread spectrum communication technology in the application of power line carrier communication; Deeply studied on the basis of the spread spectrum demodulation technology communication technology of the high performance of power line carrier MODEM chip dedicated the internal working principle of SSC P300. On this basis, the remote meter reading system was realized using the SSC P300 concentrator and reliable data transmission between terminal carrier electric meter concentrator is connected to the PC and terminal hub between carrier electric meter, to play the role of a transmission. According to the regulations of the electric power industry standard of