摘要
介绍一种基于电力载波通信的教室节能系统的设计方法,给出系统硬件结构,对红外检测的电路、电力载波芯片LM1893的工作原理以及单片机相应的外围电路进行分析,并着重介绍基于载波通信的PC机与单片机多机通讯的通讯协议以及上位机和下位机软件设计思路。经实验证明,该系统运行可靠。
This paper introduces the method to design the classroom intelligent energy saving system. According to the hardware circuits,it analyzes the principle of infrared detection, carrier chip LM1893 and the interface circuits of the single chip. It also discusses the communication protocol between the PC and single chip and provides the method of software design seriously based on the carrier - current communication. The system is verified to be stable by the experiment.
出处
《现代电子技术》
2008年第4期189-191,194,共4页
Modern Electronics Technique
关键词
电力载波
红外检测
串行通信
节能系统
electric - network carrier
infrared detection
serial communication
energy saving system
