针对目前广电HFC(Hybrid Fiber Coaxial)网络双向改造,基于Home PlugAV技术,设计了一款可以将以太网数据和电视信号在同轴电缆上分频同传的设备,并融入WiFi技术实现以太网信号的无线接入。介绍了整个设备的设计思路,给出了硬件各模块的电路设计和WiFi模块的底层驱动设计。
Aiming at the two-way HFC network for the current transformation of radio and television, based on HomePlugAV technology, an equipment is designed that can transmit the Ethernet data and television signals in the different frequencies with the same coaxial cable, and meanwhile can realize the Ethernet signal wireless access with the WiFi technology. The whole design ideas are described, the circuit design of each module of the hardware, and the underlying drivers design of the WiFi module are all given.