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电力网由于覆盖广泛,无需重新布线,永久连接,不存在射频电磁污染等优点,成为构建智能家居系统的首先物理媒介。本文介绍了一种基于扩频技术的电力线调制解调芯片SC1128,分析其通信特性,与国内外同类产品进行了对比。并以SC1128芯片为核心,设计了电力线收发器。最后将其应用于智能家居系统,基于Lonworks技术搭建了智能家居网络,为未来的智能家居系统研究提供参考平台。
Because of its extensive coverage, no rewiring, permanent connection and no radio frequency electromagnetic pollution, the power grid has become the first physical medium to build a smart home system. This article introduces a kind of power line modulation and demodulation chip SC1128 based on spread spectrum technology, analyzes its communication characteristic, and compares with similar products at home and abroad. And to SC1128 chip as the core, the design of the power line transceiver. Finally, it is applied to the smart home system, based on Lonworks technology to build a smart home network for the future study of smart home systems provide a reference platform.