Research of Power Line Simplex Time-sharing Communication Technology

电力线是世界上遮蔽最广的网络之一，它与人类的日常生活紧密关联，构成了一张庞大的电力网。电力线通信技术在第一次被提出以后就得到了飞速发展，主要推动力量来源于其将供电线路和通信线路合二为一的巧妙设计思路所带来的巨大市场诱惑力。 本文作者在实验室的课题小组中独立负责一个研究项目的通信模块开发，在多方比对之后课题小组选定电力线通信方案作为系统的控制手段，并且该通信模块希望用于小范围、低成本、低速率的应用场合。针对课题的实际情况，本文在研究电力线通信技术相关原理的基础上提出了一种电力线单工分时通信技术，并制作出技术样机。 在设计通信系统之前，本文首先给出了电力线单工分时通信技术的原理，包括信号的调制...Power line is one of the most extensively distributed networks in the world, it is closely related to our daily lives and constitutes an enormous power net. Power Line Communication technology obtained the rapid development after it was been proposed for the first time,which main driving force comes from the huge market allure of the clever ideas in combing power supply line and communication line...学位：工学硕士院系专业：物理与机电工程学院_测试计量技术及仪器学号：1992011115278

Application of TWI bus module design in electrical control systems of vehicle bodies

利用AVr单片机的TWI总线构建了汽车车身电控系统的模块化构架。利用TWI总线定义了数据传输协议,建立了基于TWI的通讯信道,实现了数据在主从模块之间的实时通讯。将总线节点尽可能多地贴近车用电器,进而减少车身线束与总线通讯成本。A module framed structure for electrical control systems of vehicle bodies is constructed based on TWI bus of AVR single chip in this paper.The data transmission protocol is defined, TWI-based communication channel is built, and real-time data communication between host module and slaver modules is got.The bus nodes are designed to close to the appliances as nearly as possible, which contributes to reduce the wiring harness and communication costs.厦门市科技计划资助项目(项目编号:3502Z20123013