基于单片机远程抄表系统设计与研究毕业论文.doc

基于单片机远程抄表系统设计与研究 基于单片机远程抄表系统设计与研究 -  PAGE 56 - -  PAGE 57 - 摘 要 远程抄表系统是利用现代通讯网络实现远程抄表计数管理的一种新兴管理系统。可以广泛的运用于电力系统电能管理等公共事业部门，是现代管理的发展趋势之一。 本文在分析比较现有的产品的基础上，结合自己所学的知识设计远程抄表系统的整个硬件和软件。完成电能数据采集，数据处理，数据传输等功能。文中在硬件上对CPU、数据存储及其监控电路、并根据不同的传输距离选择不同的通信标准、时钟电路、串口扩展、电能采集和显示电路都做了详细的论述。在软件上对数据脉冲采集、通信、显示子程序、校验子程序等做了详细的说明。 另外还进行了抗干扰分析，并从硬件和软件上进行了抗干扰设计，对印制电路板的电磁兼容问题给了一些相应的解决措施，从而使系统抗干扰性能有了明显的提高。该课题对电力系统中电能管理有一定的适用价值，同样还可以推广到其他相关的一些行业，有较高的社会推广价值。 关键词 远程抄表，抗干扰，数据通信，AT89S51 Abstract Automatic meter reading system (AMRS) is a modern administration system which collects and reads remote consumption data through modern communication network. AMRS can be used in the electric power system and such public departments. Data-collecting device is one of the most important parts of the system. In this paper, the hardware and the software of the AMRS to realize the main function of the data-collecting device in the market were designed now. Finish the function of the electric power data-collecting, data-managing, In this thesis, about the hardware, a particular explanation of the choice of CPU, inspect circuit, data memory etc were given. And the software, we give the program of impulse collection, communication, display etc. In addition, anti-interruption performance and adopt according the precaution based on the hardware and the software, to improve the systems reliability. Give some methods to solve the EMI /EMC problem of the printed circuit. Generally, the study on the topic will develop high level on the electrical power system management. And it is very worthy of generalization and application. KEY WORDS Remote meter reading, Anti-interruption, Data-communication, AT89S51 目 录  TOC \o 1-4 \h \z \u  HYPERLINK \l _Toc201547346 摘 要  PAGEREF _Toc201547346 \h I  HYPERLINK \l _Toc201547347 Abstract  PAGEREF _Toc201547347 \h II  HYPERLINK \l _Toc201547348 1 绪 论  PAGEREF _Toc2015