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1、具有无线远传的温度法热计量器设计摘 要近年来，随着地区经济的迅猛发展，环境污染问题越来越严重，防止环境污染，保护环境，维持生态平衡，已成为社会发展的一项重要举措，也是每个公民应尽的义务。我国经济快速增长，各项建设取得巨大成就，但也付出了巨大的资源和环境代价，经济发展与资源环境的矛盾日趋尖锐，群众对环境污染问题反应强烈。这种状况与经济结构不合理，不加快调整经济结构、转变增长方式，资源支撑不住，环境容纳不下，社会承受不起，经济发展难以继续。只有坚持节约发展、清洁发展。安全发展，才能实现经济又好又快发展。同时，室温气体排放引起全球气候变暖，备受社会广泛关注。进一步加强节能减排工作，也是应对全球气候变
2、化的迫切需要。如今取暖已经成为了节能减排的重要目标。本系统的设计可以有效的控制不合理的浪费，同时也可降低能源的浪费。设计本系统主要的目的是利用SIM300将供热户的室温度定时的发送到供热中心，供热中心可以与时的发现热用户是否在浪费热源（如开窗户，放热水等）。然后与时的处理热用户，或者阻止热用户的这种浪费行为。这样做的目的即实现了节能减排，又同时进行合理的收取供热费用，真正的实现了，温度法热计量收费的目的。系统扩展了温度上下限自动报警，按键记录当前温度值。同时热用户可以把供热不良的问题与时的反应给供热中心，这样做可以达到双方有效的凭证。共同为节能减排做有效的保护措施。本系统还增加了年月，日，时，
3、分，秒，星期等功能。关键词：SIM300 LCD1602 DS18B20温度采集 按键ABSTRACTIn recent years,Withthe rapid development ofregional economy，Environmental pollutionproblem is getting worse，Prevention of environmentalpollution,Protect the environment,Maintain ecological balance,Has becomean important measureof social development
4、,Isthe obligation ofevery citizen.Chinas rapid economicgrowth,The construction has madegreat achievements,Butalso paid ahuge resourceand environmental costs,Economic development andresources and the environmentbecome increasingly acute contradictions,Massesreacted stronglyto environmentalpollution p
5、roblems.This situationand theeconomicstructure is irrational,Do not speed upthe adjustment of economicstructure, change themode of growth,Resources can not support, the environment does not fit, can not afford thesocialand economic developmentis difficult to continue.Only by adhering toconservation
6、development,clean development. Security and developmentin order to achievesound and rapid economicdevelopment.Meanwhile, theroom temperaturegas emissionscause global warming, a subject of widespread concern.Further strengthenenergy conservationwork, but alsorespond tothe urgent need forglobal climat
7、e change.Todayheatingenergy conservationhas becomean important goal.The systemis designed toeffectively control theunreasonablewaste, but also to reduce energywaste.The main purpose ofthis systemdesignis the use oftheheatinghouseholdsSIM300indoor temperatureregularlysent to thecentralheating, heatin
8、g centercan befound ina timely mannerwhether thewasteheat sourceheat users(such as opening the window, put hot water, etc.).Andtimely treatmentheat users, or to preventsuch wasteheatuserbehavior.The aimisto achieveenergy conservation,butalsofor a reasonablechargeheating costs, the true realization,
9、temperature methodheatmetering and chargingpurposes.System extends theupper and lower temperaturealarm,keyloggerscurrent temperature value.Meanwhileheat userscan putthe problem of poorheatingtimely responseto theheating center, doing soboth sidescan reacha valid certificate.Together foreffective pro
10、tectionto energy savingmeasures.The systemalso increased theyears, days, hours, minutes, seconds, weeksand other functions.Keywords: SIM300 LCD1602 DS18B20 Temperature acquisition Button目录摘要IABSTRACTII第1章绪论11.1供热计量器的发展历程11.2研究的目的和意义31.3研究/设计的目标3第2章系统的工作原理52.1系统的原理52.2 CPU（STC12C5A60S2）主要性能52.2.1 CPU
11、的主要性能52.2.2功能特性描述6第3章系统的硬件选择93.1本系统的构成93.2 本系统的硬件选择93.2.1温度传感器的选择93.2.2 AD转换芯片的选择方案133.2.3每户终端向供热公司数据传输选择方案183.2.4 DS1302时钟芯片233.2.5 EEPROM的选择方案273.2.6显示电路的选择323.2.7蜂鸣器模块设计363.2.8串口通信的设计373.2.9按键电路的设计383.2.10电源部分的设计393.2.11单片机复位电路部分40第4章软件设计414.1系统总流程图414.2各模块功能流程图设计41第5章软硬件的调试过程475.1单片机最小系统的硬件设计475
12、.2单片机所有硬件电路的焊接过程475.3软件的调试过程485.4装有SIM300模块的硬件通信软件调试过程495.5基本功能实现50结论51致53参考文献54附录1 本设计的整体电路图56附录2 本设计的主要程序代码57ContentsAbstractIABSTRACTIIChapter 1 Introduction11.1Development ofheat meteringdevice11.2The purposeand significance of thestudy31.3Research /design goal3Chapter 2System Works52.1The princ
13、iple ofthe system52.2 CPU (STC12C5A60S2)Main Performance52.2.1 CPUs main performance52.2.2FeaturesDescription6Chapter 3system hardwareselection93.1Systemconfiguration93.2system hardwareselection93.2.1Temperaturesensor selection93.2.2 ADconversion chipoptions133.2.3householdheating companydatatermina
14、l to theoptions183.2.4 DS1302clock chip233.2.5 EEPROMoptions for273.2.6display circuitselection323.2.7BuzzerModule Design363.2.8Serial CommunicationDesign373.2.9keycircuit design383.2.10power supplypart of the design393.2.11microcontroller resetcircuit part40Chapter 4Software Design414.1total system
15、flow chart414.2Flowchartof eachdesignmodule function41Chapter 5of hardware and softwaredebugging process475.1smallest single-chipsystem hardware design475.2Allchiphardware circuitwelding process475.3software debuggingprocess485.4SIM300 moduleis equipped witha hardwarecommunication softwaredebugging process495.5basic functions50Conclusions51Acknowledgements53References54Appendix1overallcircuitdesign56Appendix2design of the mainprogram code57 / 第1章 绪论1.1供热计量器的发展历程我国供热计量发展截止到目前共分为三个阶段。第一阶段是90年代初到2000年，约10年的时间，为探
