基于gsm的远程测控终端方案设计书.docVIP

毕 业 设 计 (论 文) 专 业 电子信息工程 班 级 09电子 EQ \o\ac(○,2)班 姓 名 张文静 学 号 09205010225 课 题 基于GSM的远程测控系统设计—显示电路， 模拟量，开关量，脉冲量电路及相应程序 指导教师 严辉 2013 年 6 月 10 日 摘 要 随着我国工业生产自动化程度的提高，需要在野外监控、操作和维护的设备越来越多。面对这种局面，按照传统方式进行分散维护和人工监控，不仅浪费人力、物力，而且可靠性差，已经不能适应工业自动化发展的需要。单片机和PC机通过串行接口构成的多微机系统已经广泛应用于工业控制、环境监测等场合，这些系统大多采用RS232、RS485或有线Modem的通信方式，虽然很经济实用，但是有线数据传输方式很大程度上限制了其使用的场合。GSM模块的应用最具优势，具有永远在线，不需拨号、价格便宜和覆盖范围广等特点。特别适用于需频繁传送小流量数据的应用，如车辆调度、安全、导航、监控和监测等领域。借助SMS和GSM无线网络，利用嵌入式系统实现远程数据采集和设备终端远程监控已成为人们研究的热点。本设计对SIM900A模块与单片机的通讯电路进行了深入研究。系统结构简单成本低功耗低适用于对野外或其他不便于铺设线缆的地区进行数据采集及远程监测。本文比较详尽地介绍了基于PIC单片机和SIM900A的短信采集系统的硬件电路和软件编程。 关键词：GSM，远程监测，PIC Abstract Along with the rapid development of automaticality level of industry field in China,there is increasing numbers of equipments which have to be supervised,operated and maintenaced in the open air.confronted with this situation,it is out of date for traditional operation such as maintenancing respectively and supervising by manpower,which wastes manpower and material resource.The multi-microcomputer composing of SCM and PC by serial has been widely applied in industry controlling and environment supervising field ,in which RS232,RS485 or wiry modem are adopted.Although economical,wiry data transmission limits its application field at a large extent.The application of GSM module has its own advantages,such as being online all the time,no demand to dial,low price and wide scope covering,which is especially suitable in the field in which amount of data transmitted by frequency is low,for instance,attempering vehicles,supervising and navigation.In virtue of SMS wireless network,collecting data and supervising equipment terminal remoted by embeded system has been a hotspot of people’s study. Key Words:remote monitoring,GSM,PIC 目录 TOC \* MERGEFORMAT 0 引言 PAGEREF _Toc18104 1 1 课题背景及发展趋势 PAGE