【摘要】 从阐述线性扩频基本原理和P300芯片特性入手,介绍了基于P300芯片组的电力线载波通信模块的开发技术,并就硬件电路的设计和控制程序固件的开发,重点展开了讨论。同时针对连接计算机管理系统和现场设备的两种典型情况,说明以此模块为核心开发的两种通用的电力线载波通信模件设备。更多还原

【Abstract】 Beginning with a brief introduction to the fundamentals of chirp and the charac-teristics of the P300,this paper sets forth the technology of the power line carrier commu-nication(PLCC)module based on the P300chip group and emphasizes the design of hard-ware and controller program firmware.Focusing on two typical cases-a computer manage-ment system and a field facility,we have developed two kinds of devices using the USB controller and PIC micro-controller.更多还原