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1、毕业设计说明书题目:智能时钟日历温度 计的设计 院(系):专业:学生姓名:学号:指导教师:职称: 摘 要目前温度计的发展很快,从原始的玻璃管温度计发展到了现在的热电阻温度计、热电偶温度计、数字温度计、电子温度计等等。随着科学技术的发展和现代工业技术的需要,测温技术也不断地改进和提高。由于测温范围越来越广,根据不同的要求,又制造出不同需要的测温仪器。本文设计一个智能时钟日历温度计,要求既能掌握时间又能了解天气温度的变化,方便又适用的智能时钟日历温度计是以单片机(AT89C51)为核心,使用温度采集芯片DS18B20来对当时室温进行采集,通过液晶屏TS1602-1来显示,DS12C887时钟芯
2、片来读取时间。时钟芯片需要初始化进行启动,设置初值后不用再反复设置,并且可以准确显示年、月、日、时、分、秒,少于31天的月份自动地调整,包括闰年补偿,还可以设置闹铃并通过蜂鸣器鸣报来提示,电路安装四个按键来控制温度及时间的修改,通过选择键分别对要修改的值进行修改,也可以修改设置闹铃等。所选用的芯片DS12C887具有功耗低、外围接口简单、精度高、工作稳定可靠等优点,可广泛应用于各种需要较高精确度的实时时钟场合中。芯片DS18B20测量温度范围广,能达到-55℃~+125℃,分辨率高,可实现高精度测温,因此对周围温度较敏感能准确采集温度。关键词:单片机AT89C51;温度采集芯片DS18B20
3、;液晶屏TS1602-1;蜂鸣器AbstractAtpresentthethermometerhasdevelopedveryrapidly,fromtheoriginalglasstubethermometertothedevelopmentofthecurrentheatresistancethermometers,thermocouplethermometers,digitalthermometers,electronicthermometers,andsoon.Withthedevelopmentofscienceandtechnologyandtheneedsofmodernind
4、ustrialtechnology,temperaturemeasurementtechnologyisconstantlyimprovingandimproving.Asmoreandmorewidetemperaturerange,accordingtodifferentrequirements,andcreatedifferentneedsforthethermometer.Inthispaper,thedesignofasmartclockcalendarthermometerforbothtrackoftimewhiletheweatherchangesintemperature,
5、convenientandapplicationofsmartclockthermometeronthecalendarSCM(AT89C51)asthecore,theuseoftemperaturetotheacquisitionchipDS18B20wascarriedoutatroomtemperatureAcquisitionthroughTS1602-1LCDscreentodisplay,DS12C887timeclockchiptoread.ClockChipneedtoinitializeastart,setupaftertheinitialdonothavetorepea
6、tedlysetupandcanaccuratelydisplayyear,month,day,real-timeclock,lessthan31daysofthemonthautomaticallyadjusted,includingleapyearcompensation,butalsocansetthealarmAndthroughbuzzer-mingwastosuggestthatcircuitinstallationoffourkeystocontrolthetemperatureandtimechanges,respectively,throughtheselectionkey
7、toamendthevalueoftherevisioncanalsomodifysettings,suchasanalarm.DS12C887selectedchipswithlowpowerconsumption,theexternalsimpleinterface,highprecision,stableandreliableworkoftheadvantagesthatcanbewidelyappli