家用太阳能热水器智能控制系统

A1A0A2A3A4A5A6A7A9A10A8A12A13A14I摘要如何很好的节约和利用能源，特别是可持续能源，一直是人类所面临的问题。所以研究智能化家庭住宅里的能源如何被更有效地节约和利用，也有着十分现实和长远的意义。而家用太阳能热水器就是一个节约能源，有效利用能源的典型。该太阳能热水器智能控制系统主要是由AT89C51单片机控制、DS18B20温度传感器、独立键盘、LED数码管和报警系统五大部分组成。该系统能测量并显示水温、设置水温的范围，如果水温不处于所设置水温的范围则报警。同时还能对水G1313G17839G15904设置G2462G2164水，G20056G1820设置好G19668要G2164水的水G1313G8585数，单片机G1262G7693G6466G17837个数G7481G17839G15904G2040别是G2554G19668要G2164水。G17902G17819G51G85G82G87G88G72G86G17731G1226G1235G11507以G990所G17860的G2163能G18129能G8503G5132实现。关键词太阳能热水器，传感器，AT89C51，温度控制，水G1313控制A1A0A2A3A4A5A6A7A9A10A8A12ABSTRACTIIABSTRACTTOECONOMIZEANDUTILIZEENERGYRESOURCE,ESPECIALLYTHELASTINGENERGYRESOURCE,ISAPROBLEMTHATHUMANKINDHASFACEDSOITISSOREALISTICANDSIGNIFICANTTORESEARCHHOWTOECONOMIZEANDUTILIZEENERGYRESOURCEISHOMEUSINGANDTHESOLARHEATERISAGOODEXAMPLEINECONOMIZINGANDUTILIZINGENERGYRESOURCETHEDESIGNOFSOLARWATERHEATERSINTELLIGENTCONTROLSYSTEMISMAINLYCOMPOSEDOFSINGLECHIPAT89C51,DS18B20TEMPERATURESENSOR,ANINDEPENDENTKEYBOARD,LEDANDALARMSYSTEMTHESYSTEMCANMEASUREANDDISPLAYWATERTEMPERATURE,SETTHERANGEOFWATERTEMPERATURE,IFTHEWATERTEMPERATUREISNOTINTHERANGEOFSETTINGTEMPERATUREISALARMINGATTHESAMETIME,YOUCANSETTHEWATERLEVELANDADDWATER,FIRST,NEEDTOSETUPTHEWATERLEVELABOVETHEWATER,SINGLECHIPWILLDETERMINEWHETHERADDTHEWATERORNOTACCORDINGTOTHENUMBERTHEUSESOFPROTUESSOFTWARECANIMITABLECOMETRUETHEFUNCTIONSKEYWORDSSOLARENERGYHEATER,SENSOR,AT89C51,THETEMPERATURECONTROL,THECONTROLOFWATERLEVELA11A15A16A17A18A19A20A21A22A23A24A25A26A271目录摘要A28ABSTRACTA29A291绪论12太阳能热水器介绍2A30A31A32A33A34A35A36A37A38A39A40A41A33A34A36A37A38A392A30A31A30A33A34A35A36A37A38A39A42A43A33A34A36A37A38A392A30A31A44A45A46A33A34A35A36A37A38A47A48A49A50A45A46A33A34A36A37A48A4933系统方案设计4A51A52A53A54A55A54A55A564A51A52A57A54A55A58A54A554A51A52A51A54A55A59A60A54A5544硬件设计6A61A52A53A62A63A64A65A66A67A53A63A64A68A696A61A52A57A70A71A72A73A74A75A70A71A73A748A61A52A51A76A77A78A70A72A73A74A75A77A78A70A72A73A7412A61A52A61A79A80A72A73A74A75A79A80A73A7413A61A52A67A81A82A72A73A74A75A81A82A73A7417A61A52A83A84A85A86A84A76A72A73A87A74A75A85A86A73A8719A61A52A88A89A90A72A73A74A75A89A90A73A7421A61A52A64A72A91A72A73A74A75A73A74225软件设计23A92A93A94A95A96A97A98A99A100A95A96A98A9923A92A93A101A95A96A102A95A103A95A96A95A103236仿真及调试24A104A105A106A107A108A109A110A107A10824A111A112A113A112A113KEILC51A114A11524A116A117A118A117A119A120A121A122A12324A124A125A126A127A128A129A130A127A128A129A13025结论27参考文献28附录A电路仿真图29附录B源程序30致谢37A131A132A133A134A135A136A137A138A139A140A141A142A143A144A14011绪论随着全球人口和经济的不断增长，能源使用带来的环境问题及其诱因逐渐为人所认识，“低碳经济”这一概念开始进入人们的视野。人们在大力发展太阳能产业。能源问题将更为突出（1）从长远来看，全球已探明石油储量只能用到2020年，天然气也只能延续到2040年左右，即使储量丰富的煤炭资源也只能持续二三百年。（2）环境污染。（3）温室效应引起全球气候变化。因此，人类在解决上述能源问题，实现可持续发展，只能依靠科G6228进G8505，大G16280G8181开发G2045用可G1889G10995G8917G1940能源。太阳能G1867G7389（1）储量的“G7092G19492G5627”。（2）太阳能G4557G1122G3332球上的G13489大G3822G6980G3332G2318G1867G7389G4396在的G7234G17953G5627，可G4613G3332G2474用。（3）开发G2045用G7114G1972G1058不产G10995G1231G1321污染。G18504G1122此，太阳能G5529将在G1002G11040能源G13479G7512G17728G6454G1025G6297G13446G18337G1231，G6116为G10714G5831的G7379G1207能源。在G1002G11040G14551G3272G1881，太阳能G9921G8712G3132G6228G7427已经G5468G6116G10099，G5194已G5430G6116G15904业，G8503在G1209G1260G14403的G5627能不断的G1926G1999G11017G9921G8712G3132G5078G3342和G10135气G9921G8712G3132G5078G3342。2000年太阳能G9921G8712G3132G2474G12074G26000G3883G4490用G11017G9921G8712G3132G7272000年G7097G7424太阳能G9921G8712G3132的G6329G7389量将G13775一G11070G727G1209G14406G2027更G7171明G7003G16280G4462，所G7389G7044G5326G6163G4639G5529G20047G18209G3803太阳能G9921G8712G3132。G11458G2081，G6117G3281G7171G1002G11040上太阳能G9921G8712G3132G10995产量和G19156G2818量G7380大的G3281G4490。能源问题G994G4445全问题G7171现G1207G12050G1262G2520G11040G7234G17953G1863G8892的G9978G9869G1055一。G11458G2081G5078G3342上G4396在三G12193G7691G5347的G9921G8712G3132G11017G9921G8712G3132G451G10135气G9921G8712G3132和太阳能G9921G8712G3132。G17829年来，在一G8699化碳G1025G8614G1119G6937G1025，G11013G10135气G9921G8712G3132G17908G6116的G13434G23561G183G727G11017G9921G8712G3132的大G16280G8181用G11017，G5194不能G13485人们的G8503G5132G10995G8975带来G1427G2045，G1328为后来者的太阳能G9921G8712G3132，因其G4445全G5627好G451节能G451绿G14406环保等G1260G9869，G17829G1972年呈现出爆发G5347的发展趋势。选择太阳能G9921G8712G3132这个课题，可G1209让G6117更好的认知可持续发展问题，看清G11458G2081的能源现状，G1209及G2520G3281在节能能源上的措施，在太阳能革G7044上运用的G7044G6228G7427。此外，太阳能G9921G8712G3132已经走进千G4490万户，控制系统G7171太阳能的核心，可G1209尽可能做到节能环保，G1328这G7691一个设计，不仅可G1209考察自己大学四年的专业课的G10714论G994动手实践能力，产品也G1867G7389一G4462的G5078G3342G2081景。A145A146A147A148A149A150A151A152A153A154A155A156A157A158A159A160A161A162A163A164A16522太阳能热水器介绍21太阳能热水器的概述太阳能G9921G8712G3132把太阳光能G17728化为G9921能，将G8712从低温度加G9921到高温度，G1209满足人们在G10995G8975G451G10995产G1025的G9921G8712使用。太阳能G9921G8712G3132G7171G11013全玻璃真空集G9921管G451储G8712箱G451支架及相G1863附件组G6116，把太阳能G17728G6454G6116G9921能主要依靠玻璃真空集G9921管。集G9921管受阳光照射面温度高，集G9921管背阳面温度低，而管G1881G8712G1427产G10995温差反应，G2045用G9921G8712上浮冷G8712下沉的原G10714，使G8712产G10995微循环而达到所需G9921G8712。22太阳能热水器的分类（1）从集G9921部分来分真空玻璃管太阳能G9921G8712G3132G11458G2081吸G9921效率G7380高的集G9921部分，G1260G9869在G1122不需要在集G9921部分在增加保温层，而且现在的真空玻璃管G7092论在抗高温，抗打G1999和保温上，G5627能都G7171一流的，也被G13489大部分太阳能G9921G8712G3132G10995产厂G4490所采用。其缺G9869在G1122体积比较庞大，管G1025容易集G13479G8712垢。金属平板太阳能G9921G8712G3132G7171在传G9921G5627能极佳的金属片上，覆盖上吸G9921涂层，G2045用金属的传G9921G5627，将吸收的G9921量传G1122G8712箱G1025。其G7389G9869G7171外观美观，G4445G16025G7053G1427，可G1209做G6116平板，而且不容易G6451G3363。缺G9869在G1122保温要G14469G5468大的G1207G1227，G6116G7424高，G19400G6521的G4613G7171增加G9052G17165者G17139G6297。（2）从G13479G7512分G7234G17902G5347太阳能G9921G8712G3132G4613G7171将真空玻璃管G11464G6521G6566入G8712箱G1025，G2045用加G9921G8712的循环，使G5483G8712箱G1025的G8712温G2331高，这G7171G11458G2081厂G4490都采用的。也G7171一只流G15904到现在的G7380G5132G16280的G9921G8712G3132。一G14336G6925类G9921G8712G3132只G7389G20042层能用，G19512G19762G20042层用户和G1332G8016下的G1863系G10317G19093，而且G4639G20042的面积G7171G7389G19492的。分体G5347G9921G8712G3132分体G5347G9921G8712G3132G7171为G1114解决不G7171G20042层用户也能使用太阳能G9921G8712G3132而G16818G10995的。分体G5347循环G73892G12193，一G12193G7171靠G8712的自然循环，这G12193G9921G8712G3132G9921G1144G6454效率G5468低，远远不能满足用G8712要G8726G727G2490一G12193G7171靠G8905循环G9921G1144G6454，这也G7171为G1114解决自然循环效率低的问题，使用G8905循环，可G1209明G7186G6925G2904G8712的G9921G1144G6454。（3）从G8712箱受G2399来来分G6227G2399G5347太阳能G9921G8712G3132G11458G2081，G7092论G7171G2750一G12193分体G5347G9921G8712G3132，都G7389一个G14280G2641的缺G9869，G5529G20047使用G6227G2399G5347G8712箱，这G7171所G7389分体G5347G9921G8712G3132的G3534G7424G5617G17347，这G4613G11464G6521考G20576G1332的集G9921部分的G4506G4565G5627能G727G17836G7389制G17908G6227G2399G8712箱G6116G7424极高，也G4396在G4445全G5627问题，一G14336要G8726G13796G2399G26个大气G727而且循环效G7536不G7171G5468G10714G5831。G15441然解决G1114G8712的循环问题和使用G8712G7114的G7053G1427G5627。G19762G6227G2399G5347太阳能G9921G8712G3132G11458G2081G16025在G4639G20042的G7234G17902太阳能G9921G8712G3132都G7171属G1122G19762G6227G2399G5347G9921G8712G3132，G4439的G8712箱G7389一G7693管G4388G994大气相G17902，G7171G2045用G4639G20042和G4490G18336的高度G14865差，使A145A146A147A148A149A150A151A152A153A154A155A156A157A158A159A160A161A162A163A164A1653用G8712G7114产G10995G2399力。其G4445全G5627，G6116G7424，使用G4563G2641都比G6227G2399G5347要G7186G14891G5483G3822。23我国太阳能热水器发展历史G6117G3281自G26G27年引进全玻璃真空集G9921管G7691管G1209来，经G1781920G3822年G2174力，G6927G1823G1114G9921G2399G4565等G16780G3822G6228G7427G19602G1863，已经G5326G12447G1114G6329G7389自主知识产G7447的现G1207化全玻璃真空集G9921管产业，用G1122G10995产集G9921管的G11925控G9305射G19220G14192G7438已G7389G264G24G2500，产品G17148量达到G1002G11040G1820进G8712平，产量G19608G4633G1002G11040G20330G1313。1G28G26G27年G1025G3281G16818G10995G12544一G2500太阳能G9921G8712G3132，到1G28G27G25年G2363G5347G11925控G9305射G19220G14192G7438的设计制G17908，G7171在G6931G12586G6218持下的G11752G12362开发G19466G8585。1G28G27G26年，G6117G3281制G17908G1114G12544一支全玻璃真空集G9921管。在G1055后的G1972年G18336，全玻璃和G9921管G5347真空管集G9921G3132实现G1114产业化，产业G16280G8181达到G1025G16809G8712平，为下一G19466G8585产业的G16280G8181化G3892G4462G1114G14403好的G3534G11796，G6116为产业的G4393G13958发展G19466G8585。1G28G283年太阳能产业进入G2033G13435发展G19466G8585G11013G1122G6116G7536G17728化需要G5468长一G8585G7114G19400的G11964G2524，G10317G2047G7171受G6228G7427人G2604缺G1059的G5445G2721，此G19466G8585的产品G17148量G7389G5465G1122进一G8505G6564高，G6984体来G16774，发展G17907度较为G13543G5942。这G7114候G1209G4677G1008力G16846集G3254为主的真空管G10995产G1237业的产品G2356G1114真空管G10995产G13489大部分G5078G3342。1G28G28G26G162001年太阳能产业G5483到高G17907发展，逐渐G5430G6116G2283G1152G451G21077G1008G451G8900G4445G451G6208G5042G451G9035G4437等G24个产业G3534G3332，G5194G1209此G2533G2620G3272不断G17764射，产能G5483G1209G17817G17907G6564G2331。继2004年，太阳雨将G1025G3281的真空管太阳能产品G12544一次带出G3281门，到200G27年上半年出口G270个G3281G4490G451G19156量继续G1209两倍G17907增长，力G16846瑞G10317G451桑乐G451皇明等G1025G3281太阳能光G9921G15904业的龙头G1237业们也纷纷进军G3281际G5078G3342。G19512这些龙头G1237业外，G1209G10995长G1122G5132G5042和浙江一带为G1207表的部分G1025小G1237业，也在循着早年“浙商”闯荡G1002G11040的G8181G5347，携真空管产品的独G7389G1260势和他们惯G7389的的低G1227G5617维，早已经“漂洋G17819G9035”，在G3281际太阳能光G9921G5078G3342上G5430G6116G1114一G4462的G1926G1999力G727G17836G7389一些原来只专G8892G1122G3281G1881G5078G3342的G1237业，也开始参加广G1144G1262或不惜G6116G7424参加G3281外的一些专业G5627展G1262，G1209寻G8726在G3281际G5078G3342分G5483一杯羹。A145A146A147A148A149A150A151A152A153A154A155A156A166A167A168A169A170A151A15243系统方案设计31方案一系统温度采集选用PTL000铂G11017阻温度传感G3132，PT100G7171铂G9921G11017阻，阻值随温度变化而G6925变。PT后的100表示G4439在0G7114阻值为100欧姆，在100G7114G4439阻值G13434为13G27G24欧姆。工业原G10714当PT100在0的G7114候他的阻值为100欧姆，阻值G1262随着温度上G2331G6116匀G17907增涨。采集的G11017G2399信号经集G6116运放LM324放大到2O一G240伏，G17728G6454G13479G7536G11013单片G7438处G10714。G8712G1313检测采用XYCG161型G2399力G8712G1313变送G3132进G15904液G1313值连续采集。XYCG161型G2399力G5347液G1313变送G3132G1881部采用进口高精度扩散硅敏感元件G1328为测量元件，敏感测量元件G4565G16025在全不锈钢探头G18336，G17902G17819高强度防G8712G17902气G11017缆G994外部放大G11017G17347连G6521，采用G11464G6521驱动四G1313七G8585G6980码管G7186示，G17902G17819独G12447G5347键盘进G15904温度和G8712G1313控制，G17902G17819软件手G8585实现按键G9052抖。报警G11017G17347G11013一个蜂鸣G3132G7512G6116，G13479G7512简单。加G9921部分采用光G11017隔离G994辅助加G9921G11017G17347。32方案二系统的温度采集选用采用温度传感G3132DS1G27B20，G4439G7171美G3281DALLAS半导体公司G10995产的G6980字化温度传感G3132DS1G27B20，G4439支持“一线总线”G6521口的温度传感G3132，全部传感元件及G17728化G11017G17347集G6116在G5430如一只三极管的集G6116G11017G17347G1881。G6117们可G1209采用DS1G27B20采集温度，G1889进G15904温度G6980值G17728化，G1889在G7186示G11017G17347上G7186示。外G3272G11017G17347只需G17902G17819DS1G27B20进G15904G6521收温度，一个G7186示G11017G17347，一个报警G11017G17347。软件部分只需要采集温度，G4557温度进G15904G17728G6454，G1889用G7186示G11017G17347将其G7186示出来。G5468明G7186，环境G4557DS1G27B20G5445G2721不G7171G5468大，同G7114DS1G27B20的测量精度稳G4462G5194可用软件设置，G6521线简单，大大的为单片G7438节省G1114G6980据口。33方案比较G7424设计主要G7171从温度传感G3132进G15904考虑。传统的测温元件G7389G9921G11017偶和G9921G11017阻，但G4439们测出的一G14336都G7171G11017G2399，G1889G17728G6454G6116G4557应的温度，需要较G3822的外部硬件，G11017G17347及软件的调G16809较为复杂，制G1328G19602度高。从G1209上两G12193G7053案G1025，G5468容易看出采用G7053案二所设计的G11017G17347相G4557来说较为简单，采用一G12193G7246能温度传感G3132DS1G27B20G1328为检测元G3132件，测温G14551G3272G16G24G24G9712G24，分G17788率G7380大可达00G252G24。DS1G27B20可G1209G11464G6521G16847出被测温度值。采用3线制G994单片G7438相连，G1955G4581G1114外部硬件G11017G17347，G1867G7389低G6116G7424和易使用的G10317G9869。A171A172A173A174A175A176A177A178A179A180A181A182A183A184A185A186A187A177A1785G7424设计G4557G8712G1313检测要G8726不高，只G20047知G17959大概G8712G1313G4613可G1209G1114，因此从G2163能G451G7460G7021G451G1227G7696G3822G7053面考虑，只需用G8712G1313传感G3132检测出G8712G1313G8585即可。G13520上所述，G7380G13468决G4462采用G7053案二G1328为设计G7053案。G7424设计G7053案系统可G11013主控制G3132（G36TG27G28CG241）G451G7186示G11017G17347G451测温G3132件（DS1G27B20）G451G6289G8712G11017动G7438G451发光二极管报警G451按键G451G8712G1313G7186示组G6116。总体G13479G7512G7706G3282如G328231所示A188A183A189A190A191A192A177A178A193A194A195A188A171A172A173A174A175A176A177A178A179A180A181A182A196A197A198A177A17864硬件设计41AT89C51介绍G36TG27G28CG241G7171带4G46字节G19390G9877可G13546G12255可G6842G19512只G16847G4396储G3132（G40PG40G53OM）的低G11017G2399G451高G5627能CMOSG27G1313微处G10714G3132（G1451G12228单片G7438）。G16825单片G7438G994工业G7643G1946的MCSG16G241型G7438的G6363G1208集和G17767出引G14062G1872容。G36TG27G28CG241将G3822G2163能G27G1313CPG56和G19390G9877G4396储G3132组G2524在单个G14467片G1025，为G5468G3822G4896入G5347控制G6564G1391G1114G9801G8975G5627高且G1227G7696低G5277的G7053案。G36TG27G28CG241的主要G10317G5627如下（1）G4563G2641达1000G1901G18G6842循环G727（2）G6980据保G11053G7114G1940010年G727（3）全G19757G5589工G13280G43G93G1624MG43G93G727（4）三G13435G12255G5219G4396储G3132G19157G4462G727（G24）12G27G13G27G1313G1881部G53G36MG727（G25）32可G13546G12255G44G18O线G727（G26）2个1G25G1313G4462G7114G3132G18计G6980G3132G727（G27）G24个G1025断源G727（G28）可G13546G12255G1030G15904G17902G17959G727（10）低G2163G13803G19398置和G6493G11017G8181G5347G727（11）片G1881G6403荡G3132和G7114G19059G11017G17347G727G36TG27G28CG241引G14062G6502G2027如G328241所示A188A196A189A190A199A200A201A202A203A204A190A205A206A188A171A172A173A174A175A176A177A178A179A180A181A182A196A197A198A177A1787G57CCG1140G12G29G14G24G57G42G49DG1120G12G29G6521G3332。P0口P0口为一个G27G1313G9443G13435开G17347G2464G2533G44G18O口，G8611G14062可吸收G27TTL门G11017流。当P1口的管G14062G12544一次G19011G7114，被G4462G1053为高阻G17767入。P0能G3827用G1122外部G12255G5219G6980据G4396储G3132，G4439可G1209被G4462G1053为G6980据G18G3332G3348的G12544G1855G1313。在G41G44G36SG43G13546G12255G7114，P0口G1328为原码G17767入口，当G41G44G36SG43进G15904G7669G20576G7114，P0G17767出原码，此G7114P0外部G5529G20047被G6301高。P1口P1口G7171一个G1881部G6564G1391上G6301G11017阻的G27G1313G2464G2533G44G18O口，P1口G13543G1926G3132能G6521收G17767出4TTL门G11017流。P1口管G14062G1901入1后，被G1881部上G6301为高，可用G1328G17767入，P1口被外部下G6301为低G11017平G7114，将G17767出G11017流，这G7171G11013G1122G1881部上G6301的G13548G6937。在G41LG36SG43G13546G12255和G7669G20576G7114，P1口G1328为G12544G1855G1313G3332G3348G6521收。P2口P2口为一个G1881部上G6301G11017阻的G27G1313G2464G2533G44G18O口，P2口G13543G1926G3132可G6521收，G17767出4个TTL门G11017流，当P2口被G1901“1”G7114，其管G14062被G1881部上G6301G11017阻G6301高，且G1328为G17767入。G5194因此G1328为G17767入G7114，P2口的管G14062被外部G6301低，将G17767出G11017流。这G7171G11013G1122G1881部上G6301的G13548G6937。P2口当用G1122外部G12255G5219G4396储G3132或1G25G1313G3332G3348外部G6980据G4396储G3132进G15904G4396G2474G7114，P2口G17767出G3332G3348的高G1855G1313。在G13485出G3332G3348“1”G7114，G4439G2045用G1881部上G6301G1260势，当G4557外部G1855G1313G3332G3348G6980据G4396储G3132进G15904G16847G1901G7114，P2口G17767出其G10317G8542G2163能G4504G4396G3132的G1881容。P2口在G41LG36SG43G13546G12255和G7669G20576G7114G6521收高G1855G1313G3332G3348信号和控制信号。P3口P3口管G14062G7171G27个带G1881部上G6301G11017阻的G2464G2533G44G18O口，可G6521收G17767出4个TTL门G11017流。当P3口G1901入“1”后，G4439们被G1881部上G6301为高G11017平，G5194用G1328G17767入。G1328为G17767入，G11013G1122外部下G6301为低G11017平，P3口将G17767出G11017流（G44LL）这G7171G11013G1122上G6301的G13548G6937。G53ST复G1313G17767入。当G6403荡G3132复G1313G3132件G7114，要保持G53STG14062两个G7438G3132G2620G7411的高G11017平G7114G19400。G36LG40G18PG53OG42当G16787问外部G4396储G3132G7114，G3332G3348G19157G4396G1813G16780的G17767出G11017平用G1122G19157G4396G3332G3348的G3332G1313字节。在G41LG36SG43G13546G12255G7411G19400，此引G14062用G1122G17767入G13546G12255G14045G1926。在平G7114，G36LG40G12483G1209不变的G20069率G2620G7411G17767出G8503G14045G1926信号，此G20069率为G6403荡G3132G20069率的1G18G25。因此G4439可用G1328G4557外部G17767出的G14045G1926或用G1122G4462G7114G11458的。然而要G8892G5859的G7171G8611当用G1328外部G6980据G4396储G3132G7114，将G17351G17819一个G36LG40G14045G1926。如G5831G12117G8502G36LG40的G17767出可在SG41G53G27G40G43G3332G3348上置0。此G7114，G36LG40只G7389在G6203G15904MOG57X，MOG57CG6363G1208G7171G36LG40G6177起G1328用。G2490外，G16825引G14062被G11065微G6301高。如G7536微处G10714G3132在外部G6203G15904状G5589G36LG40G12117G8502，置G1313G7092效。G18PSG40G49外部G12255G5219G4396储G3132的选G17902信号。在G11013外部G12255G5219G4396储G3132G2474G6363G7411G19400，G8611个G7438G3132G2620G7411两次G18PSG40G49G7389效。但在G16787问外部G6980据G4396储G3132G7114，这两次G7389效的G18PSG40G49信号将不出现。G18G40G36G18G57PP当G18G40G36保持低G11017平G7114，G2029在此G7411G19400外部G12255G5219G4396储G3132（0000G43G16G41G41G41G41G43），不管G7171G2554G7389G1881部G12255G5219G4396储G3132。G8892G5859加G4506G7053G53471G7114，G18G40G36将G1881部G19157G4462为G53G40SG40TG727当G18G40G36G12483保持高G11017平G7114，此G19400G1881部G12255G5219G4396储G3132。在G41LG36SG43G13546G12255G7411G19400，此引G14062也用G1122施加A171A172A173A174A175A176A177A178A179A180A181A182A196A197A198A177A178812G57G13546G12255G11017源（G57PP）。XTG36L1反G2533G6403荡放大G3132的G17767入及G1881部G7114G19059工G1328G11017G17347的G17767入。XTG36L2来自反G2533G6403荡G3132的G17767出。42测温电路设计（1）DS1G27B20的引G14062G3282及G7053G7706G3282DS1G27B20的外G5430及管G14062G6502G2027G3282如下G328242所示。G311G42G49DG3332信号。G312DG52G6980据G17767入G18G17767出引G14062。用在G4504G10995G11017源下，可G2533G3132件G6564G1391G11017源。G313G57DD可选择的G57DD引G14062。当工G1328G1122G4504G10995G11017源G7114，此引G14062G5529G20047G6521G3332。A188A196A189A207A208A209A190A201A210A207A211A212A213A214A205A206A215A216DS1G27B20的G7053G7706G3282如G328243所示G29A188A196A189A183A208A209A190A201A210A207A211A186A195A188（2）DS1G27B20主要G5627能和G2163能G10317G5627G6563述1）DS1G27B20主要G5627能G311独G10317的单线G6521口G7053G5347，DS1G27B20在G994微处G10714G3132连G6521G7114仅需要一G7477口线A171A172A173A174A175A176A177A178A179A180A181A182A196A197A198A177A1789即可实现微处G10714G3132G994DS1G27B20的G2464G2533G17902G16771。G312测温G14551G3272G713G24G24G794G71112G24，G3278G7389测温分G17788率0G24。G313支持G3822G9869组G13605G2163能，G3822个DS1G27B20可G1209G5194G13864在G2819一的三线上，G7380G3822只能G5194G13864G27个，如G7536G6980量G17819G3822，G1262使G1391G11017G11017源G11017G2399G17819低，从而G17908G6116信号传G17767的不稳G4462，实现G3822G9869测温。G314工G1328G11017源G293G16G24G57G18DC。G315在使用G1025不需要G1231G1321外G3272元件。G316测量G13479G7536G1209G28G1612G1313G6980字量G7053G5347G1030G15904传送。G317不锈钢保G6264管G11464G5464G158G25。G318用G1122DG491G24G162G24，DG4940G16DG492G240G2520G12193G1183G17148工业管G17959G451小空G19400设G3803测温。G319G7643G1946G4445G16025G15758G13453M10X1，M12X1G24，G421G182G1231选。G320PG57CG11017缆G11464G6521出线或G5515G5347球型G6521线G11430出线，G1427G1122G994其G4439设G3803连G6521。2）DS1G27B20G2163能G10317G5627G6563述DS1G27B20温度传感G3132G1881部G4396储G3132G17836G2265G6336一个高G17907G7254G4396G53G36M和一个G19762易G3845G5627可G11017G6842G19512的G40G40G53G36M。高G17907G7254G4396G53G36MG13479G7512为G28字节G4396储G3132，G13479G7512如表41所示。头2个字节G2265G2559测G5483温度信息，G125443G4514字节TG43和TL的拷贝，G7171易G3845的，G8611次上G11017复G1313G7114被刷G7044。高G17907G7254G4396G53G36M的G12544G25G451G26G451G27字节保G11053未用，表现为全逻辑G12544G28字节G16847出G2081面所G7389G27字节CG53C码，可用来检G20576G6980据，从而保证G17902信G6980据的G8503确G5627。G12544G24字节为G18209置G4504G4396G3132，G4439的G1881容用G1122确G4462温度值的G6980字G17728G6454分G17788率。DS1G27B20工G1328G7114G4504G4396G3132G1025的分G17788率G17728G6454为相应精度的温度G6980值。G16825字节G2520G1313的G4462G1053如表42所示。低G24G1313都为1，TMG7171工G1328G8181G5347G1313，用G1122设置DS1G27B20在工G1328G8181G5347G17836G7171在测G16809G8181G5347，DS1G27B20出厂G7114G16825G1313