【摘要】 介绍了一种基于LM1893的电力线载波通信系统以解决智能大厦、智能小区等综合性系统工程中的局域网内部通讯问题,该系统以8031单片机为控制核心,以LM1893电力线载波通讯芯片为基础,辅以外围接口电路进行设计。以智能小区报警网络系统的应用为例,本文介绍了电力线载波通讯系统的具体应用。该通讯系统具有功能齐全、结构简单、设计成本低、系统组织灵活的特点,特别适合单变压器供电区域内用户之间的数据通讯。更多还原

【Abstract】 A LM1893-based carrier-current communica tion system for the communication a-mong intelligent building is introduced,a 8031single-chip microcomputer is used to con-trol the LM1893-based sy stem,with some peripheral interface circuit.Take an example of the warning ne twork for intelligent area,the application of carrier-current communication system is introduced,the communication system has all the necessary functions w ith a low price,simple construction and works effective,it is suitable for the communication a-mong the area powered by a transformer.更多还原