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2、基于单片机的IC卡智能水表设计摘要为适应国家用水制度的改革，研究和利用现代化智能技术对自来水实行自动控制，减轻供水管理部门因“先供水后收费”造成的资金压力，减少每月抄表、收费所带来的麻烦和因收费问题带来的纠纷，用现代科学技术手段改变自来水管理体制的落后现状，势在必行。基于单片机的IC智能水表不但可以提高供水部门的工作效率，而且在技术上为节约用水、合理用水创造了条件，由于这些特点，基于单片机的IC智能水表得到了越来越广泛的应用。本论文主要设计研究基于单片机的IC卡智能水表电路，其主要功能是以AT8
3、9C51单片机为核心，实现IC卡的读写，液晶显示的控制，电磁阀的控制，脉冲的提取，同时具有安全保护电路、记忆单元电路、通信接口电路，完成整个水表信号的读、写处理，监控水表工作的功能。本文对每个模块逐一进行了研究，全面详细地论述了硬件电路的设计流程，对本设计中非接触式IC卡读写电路模块、液晶显示电路模块和H6152读写电路模块等工作原理及功能进行了详细了说明。关键词：单片机；IC卡；液晶显示；记忆模块
4、DesignoftheWaterMeterICCardSystemBasedOnSing-chip
5、AbstractInordertoadaptthereformofthenationsystemofwatersupply,studyingandmakinguseofthemodernintelligencetechniquetorealizetheautomaticsupervisionofthewatersupply,lighteningthefundspressurebecauseof“supplywaterfirstbehindcharge”ofthedepartmentsupplyin
6、gwater,reducingthetroubleanddisputeofcopyingtheformandchargingmonthly,usingthemodernsciencetechniquechangethecurrentadministrationstructureofusingwaterandwatersupplyindustryisimperativeunderthesituation.Theapplicationofintelligentwatermeternotonlyimpr
7、ovesworkefficiencyofintelligentwatermeternotonlyimprovesworkefficiencyofthedepartmentsupplyingwaterandrealizesusingwaterelectronicallybutalsocreatesaconditionforusingwaterfrugallyandrationally.Becauseofthesecharactetistics,intelligentwatermeterobtaine
8、dmoreandmorewidespreadapplication.Inthispaper,themaindesignbasedonsingle-chippre-chargestheICcardwatermetersystemhardwarecircuitdesign,itsmainfunctionisbasedonAT89C51single-chipmicrocomputerasthecore,therealizationofICcardreader,LCDdisplaycontrol,thec
9、ontrolsolenoidvalve,pulseextraction,atthesametimesecurityprotectioncircuit,memorycellcircuit,communicationinterfacecircuit,thesignalmeterto
10、completethereading,writingandprocessing,monitoringtheworkfunctionofwatermeters.Inthispaper,onebyoneforeachmodul
11、estudied.Fulldetailofthehardwarecircuitdesignflow,forthedesignoftheCentralAfricancontactlessICcardreadercircuitmodule,liquidcrystaldisplaycircuitmoduleandcircuitmodule,suchasreadingandwritingH6152workingprincipleandfunctionaredescribedindetail
