Aiming at ihe problems of the complicity of domestic grid environment and unsatisfactory operation of currently existing meter reading systems, the remote automatic meter reading system based on power frequency communication (PFC) and GPRS is designed; and lbe hardware design schemes of the concentrator and collector are given. The meter reading system ensures stable and reliable data transmission, as well as achieves real-time tracking and monitoring for electricity installations. In order to effectively inhibit power harmonic interferences, the method of combining wavelet and jointly approximate diagonalization of Eigen-matrices (JADE) is used to detect communication signals. The validity of this method is simulated by Matlab with excellent result.%针对我国电网环境复杂、现有抄表系统运行效果不理想等问题,设计了一种基于工频通信(PFC)和GPRS技术的远程自动抄表系统,并给出了集中器和采集器的硬件设计方案.该抄表系统不仅能够保证数据稳定、可靠地传输,而且能够实现对用电装置的实时跟踪监测.为了有效地抑制电力谐波的干扰,采用小波和联合近似对角化(JADE)相结合的方法米实现通信信号的检测.运用Matlab对该方法进行仿真,结果验证了该方法的有效性.
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