基于嵌入式的电力线载波数据通信系统的设计

A scheme of low voltage powerline carrier communication system based on embedded system

低压配电网电力线载波通信是实现楼宇自动化、自动抄表和宽带上网的关键技术。鉴于低压电力线载波通信的发展需求,提出了运用正交频分复用(OFDM)技术实现载波通信的方案。采用MAXIM公司生产的电力线集成数字收发器MAX2986和电力线模拟前端收发器MAX2980以及Winbond公司生产的W90N740微处理器设计了电力线载波数据通信系统的硬件实现方案,为低压电力线载波通信系统的后续研究奠定了基础。

The technique of low power-line carrier communication serves for the carrier communication, the key of the realization of automation of tower, automatic transcription of instrumentation＇s parameter and power-line network. Owing to the need of development of the power line communication, a modulation technique of orthogonal frequency division multiplexing （OFDM） is put forward in this paper. A scheme of low voltage power line carrier communication system based on MAX2986, MAX2980 and W90N740 is provided, which lays a foundation for the future studies and research.