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电气工程毕业设计外文翻译原文
西南交通大学
本科毕业设计
外文翻译
年级:
学号:
姓名:
专业:
指导老师
xx年xx、月
院系xxx专业电气工程及其自动化
年级xx姓名xxx
题目外文翻译
指导教师
评语
指导教师（签章）
评阅人
评语
评阅人（签章）
成绩
答辩委员会主任（签章）
年月日
DesignofTemperatureControlDeviceUndergroundCoalMineBasedonAT89S52
ABSTRACT
Abstract-Temperatureundergroundcoalmineisanimportantindex,especiallyforminingworkersunderground.Tomonitorthetemperatureeffectively,atemperaturemeasurementandcontrolsystemisnecessarytodesign.TemperaturevalueisdisplayedonLEDscreenonline.Whentemperaturevaluereachesthemaximum,conditioningdeviceconnectedwiththeopeningendoftherelaycontrolledbytheMeVwillstartup.TemperaturesignalandcontrolinformationisalltransmittedbywirelesssignaltransmissionmodulenRF905.Thesystemprogramconsistsoftransducercontrolanddisplayofthetemperaturevalue.Thecontrolprogramoftransduceriscompiledaccordingtoitscommunicationprotocol.Programofwirelessdatatransmissionshouldbedebuggedbetweenthedatatransmissionmodules.Alarmdeviceisdesignedtoprovideseffectiveinformationtoworkerswhenthetemperaturevalueisunusual.Thusmonitoringofthetemperatureundergroundcoalminecanberealandeffective.
Keywords:
IndexTerms-DS18B20,AT89S52,nRF905,coalminetemperaturecontrol
I.INTRODUCTION
Theenvironmentundergroundcoalmineispoor,andvariousdangerscaneasilyoccur.Therefore,inordertoensuresafeproductionofcoalmine,itisneededtosupervisevariousparametersundergroundcoalmine,includingtemperature,pressure,gas,windspeedanddistance.Timelymonitoringtemperaturesofsomeminekeypointsandcoalfaceisanimportantmonitoringprojecttoguaranteesafeproduction.Moreover,theultrasonicmeasurementofdistanceisusuallyusedincoalmine,toensuretheaccuracyofmeasurement,itisalsoneededtomakeaccuratetemperaturemeasurement.Traditionaltemperaturemeasurementisdonebyclassicalisolatedsensors,whichhassomedisadvantagesasfollows:
slowreactionrate,highmeasuringerrors,complexinstallationanddebuggingandinconvenientlong-distancetransmission.InthispaperintelligenttemperaturemeasurementandcontrolisrealizedbytakingDS18B20temperaturesensorandAT89S52MCUasplatform.DS18B20hassomeadvantages,mainlyincludingdigitalcounting,directoutputofthemeasuredtemperaturevalueindigitalform,lesstemperatureerror,highresolution,stronganti-interferenceability,long-distancetransmissionandcharacteristicofserialbusinterface.Comparingwiththetraditionalmethodoftemperaturemeasurement,MCUtemperaturemeasurementcanachievestorageandanalysisoftemperaturedata,remotetransmissionandsoon.DS18B20sensorisaseriesofdigitalsinglebustemperaturesensormadeinDALLAScompanyofUSA.[I]
II.DESIGNOFHARDWAREFORTEMPERATURECONTROLSYSTEM
ThedeviceiscomposedofthetemperaturesensorDS18B20,MCUAT89S52,displaymoduleandrelayformainfancontrol.TheprinciplediagramofthishardwareisshowninFig.l.
DS18B20temperaturesensorconvertstheenvironmentaltemperatureintosigneddigitalsignal（with16bitscomplementarycodeaccountingfortwobytes）,itsoutputpin2directlyconnectedwithMCUPl.2.Rlispull-upresistorandthesensorusesexternalpowersupply.Pl.7islinkedtorelayandPOislinkedtoLEDdisplay.AT89S52isthecontrolcoreoftheentiredevice.Displaymodulesconsistsofquaternitycommon-anodeLEDandfour9012.Theread-writeofsensor,thedisplayoftemperatureandthecontrolofrelayarecompletedbyprogramcontrolofthesystem.[2]
III.DESIGNOFSIGNALWIRELESSTRANSMISSION
Testedsignalistransmittedbywirelessmode,asshowninFig.1.Wiretransmittingofsignalundergroundcoalminehassomedisadvantages:
1）Themineralproductsareminedbyexcavationofshaftandtunnel.Meanwhile,therearesomanyequipmentsusedundergroundcoalmine.Therefore,itismoredifficulttowiringinshaftandtunnel,andenvironmentalsuitabilityispoorforwiretransmittingofsignals;
2）Supportworkersshouldcheckupcablesfortransmittingsignalsatanymomentwhencombinedmotionofthecoalmachinesupportoccurs.Thus,workers'laborintensityisincreased;
3）Thelong-distancetransmissionofsensingelementwithcontactmethodmayleadtolargererrors.Toreduceerrors,thelong-distancelinedriverandsafetybarrierareneeded.Thus,thecostisincreased;
4）Theworkloadofmaintenanceundergroundcoalmineislarger.
Figure1.Structurediagramofsignalwirelesstransmissionsystem
Bycontrast,adoptingwirelessdatatransmissioncaneffectivelyavoidtheabovedisadvantages.[3]
WirelesssignaltransmissionmodulenRF905isusedinthedesign.Itscharacteristicsareasfollows:
IntegratedwirelesstransceiverchipnRF905worksintheISMband433/868/915MHz,consistsofafullyintegratedfrequencymodulator,areceiverwithdemodulator,apoweramplifier,acrystaloscillatorandaregulator.ItsworkingmodeofoperationisShockBurst.PreamblesandCRCcodeareautomaticallygeneratedinthemode,andcaneasilybeprogrammedthroughtheSPIinterface.Currentconsumptionofthemoduleisverylow.Whenthetransmitpoweris+10dBm,theemissioncurrentis30rnAandreceivingcurrentis12.2rnA.ItalsocanenterPOWERDOWNmodeltoachieveenergy-saving.[4]
IV.SOFTWAREDESIGN
Fordoingtheread-writeprogrammingforDS18B20,itsread-writetimesequenceshouldbeguaranteed.Otherwise,theresultoftemperaturemeasurementwillnotberead.
Figure2.Softwaredesignflowchart
Therefore,programdesignforoperationonDS18B20hadbetteradoptassemblylanguage.[5]SoftwaredesignflowchartisshowninFig.2.
StructureofMainprogramfortemperaturemeasurementisshownasfollowing:
INIT1820:
SETBDIN
NOP
CLRDIN
MOVRO,#250
TSRI:
DJNZRO,TSRI
SETBDIN
NOP
NOP
NOP
MOVRO,#60
TSR2:
DJNZRO,TSR2
JNBPI.0,TSR3
LJMPTSR4
TSR3:
SETBFLAGI
LJMPTSR5
TSR4:
CLRFLAG1
LJMPTSR7
TSR5:
MOYRO,#6BH
TSR6:
DJNZRO,TSR6
TSR7:
SETBDIN
SETBDIN
RET
GETTEMPER:
SETBDIN
LCALLINIT1820
18FLAG1,TSS2
RET
TSS2:
MOYA,#OCCH
LCALLWRITE1820
MOYA,#44H
LCALLWRITE1820
LCALLDELAY
LCALLDELAY
LCALLDELAY
LCALLDELAY
LCALLDELAY
LCALLDELAY
LCALLINIT1820
MOYA,#OCCH
LCALLWRITE1820
MOYA,#OBEH
LCALLWRITE1820
LCALLREAD1820
RET
WRITE1820:
MOYR2,#8
CLRC
READ_l820:
MOVR4,#2
MOVRl,#29H
REOO:
MOVR2,#8
REOl:
CLRC
SETBDIN
NOP
NOP
CLRDIN
NOP
NOP
NOP
SETBDIN
MOVR3,#9
ADJUST_TEMPER:
CLRTEM_BIT
JNB47H,AJUST
SETBTEM_BIT
XRLTEMPER_L,#OFFH
MOVA,TEMPER_L
ADDA,#OlH
MOVTEMPE~L,A
XRLTEMPER_H,#OFFH
MOVA,TEMPER_H
ADDCA,#OOH
MOVTEMPER_H,A
ADJUST:
MOVA,TEMPER_L
MOVB,#lOO
DIVAB
MOVB_BIT,A
MOVA,B
MOVB,#lO
DIVAB
MOVS_BIT,A
MOVG_BIT,B
DISPMAIN:
LCALLD_DISP
LCALLG_DISP
LCALLS_DISP
LCALLB_DISP
MOVA,#OFFH
LCALLDISP
MOVA,#OFFH
LCALLDISP
MOVA,#OFFH
LCALLDISP
MOVA,#OFFH
LCALLDISP
LCALLDELAY
RET
DDISP:
MOVC,D_BIT
JCDDISPI
MOVA,#03H
LCALLDISP
RET
DDISPl:
MOVA,#49H
LCALLDISP
RET
GDISP:
MOVA,G_BIT
MOVDPTR,#TAB
MOVCA,@A+DPTR
ANLA,#OFEH
LCALLDISP
RET
SDISP:
MOVA,S_BIT
MOVDPTR,#TAB
MOVCA,@A+DPTR
LCALLDISP
RET
BDISP:
JNBTEM_BIT,B_DIS
MOVA,#Ofdh
LCALLDISP
RET
BDIS:
JBl8H,B_l
MOVA,#Offh
LCALLDISP
RET
B1:
MOVA,#03H
LCALLDISP
RET
DISP:
CLRC
MOVR2,#8
DIS:
RRCA
MOVDAT,C
CLRCLK
SETBCLK
CLRCLK
DJNZR2,DIS
RET
DELAY:
MOVR3,#80h
Dl:
MOVR4,#OfEh
DJNZR4,$
DJNZR3,Dl
RET
TAB:
DB03H,9FH,25H,ODH,99H
DB49H,4IH,IFH,OIH,09H
END
V.CONCLUSION
Theperformanceofmeasurement-controldevicemainlydependsontheperformanceofsensingelement,theprocessingcircuitandthetransmissionefficiencyofcollecteddata.DigitaltemperaturesensorDSl8B20andprocessingchipAT89S52havecharacteristicsofgoodtechnicalindexes,andthefieldoperationsindicatethatcircuitssystemhasmanyadvantages,suchasaccuratedatadetection,goodstabilityandeasyadjustment.
Afterindustrialoperationtest,thesystemisexcellentforworstmineenvironment,whichprovidespowerfulassuranceforsafeproductioninthecoalindustry,andbringsgoodeconomicandsocialbenefits.
REFERENCES
[1]WANGFurui,"Singlechipmicrocomputermeasurementandcontrol
systemcomprehensivedesign,"BeijingUniversityofAeronauticsand
AstronauticsPress,1998.
[2]XIAHuguo,"Technologyapplicationinautomationcombined-mining
face,"ShaanxiCoal,2007.
[3]SHAZhanyou,"Principleandapplicationofintelligentintegrated
temperaturesensor,"MechanicalIndustryPublishingHouse,2002.
[4]CAOShujuan,HEYinyong,GUOSan-rning,On-linetemperaturemeasuring
systeminvolvingcoalmine,JournalofHeilongjiangInstitute
ofScience&Technology,7（2005）
[5]SUNXiaoqing,XIAOXingming,WANGPeng,"DesignofMeasuring
SystemforRotatingSpeedofHoistBasedonVirtualInstrument,"Coal
MineMachinery,12（2005）.
基于AT89S52煤矿井下的温度控制装置的设计
摘要
煤矿井下抽象温度是评价学术期刊的重要指标,特别是对在地下工作的采矿工。
为了有效地监控温度，进行温度测量和控制系统的设计是很有必要的。
温度是显示在屏幕上的，当温度达到最大时，通过MeV控制的以开放的空调设备连接的继电器将开始工作,温度信号和控制信息都是通过无线信号传输模块nRF905。
该系统由变频器控制程序和显示温度值组成，传感器的控制程序是根据它自己的通信协议进行编制的。
无线电数据传输程序应该在数据传输模块中进行。
报警装置的设计是向工人为了提供温度异常的有效的信息。
通过这样进行煤矿井下的温度检测可以是真实的和有效的。
关键字：
DS18B20,AT89S52,nRF905，煤矿的温度控制
I介绍
煤矿井下的环境很差,各种各样的危险会很容易发生。
因此,为了确保煤矿安全生产，需要监督煤矿井下各种参数,包括温度、压力、气体、风的速度和距离。
及时对一些矿藏的关键点和和采煤工作面进行温度监控是保证安全生产的一种重要监控，此外,超声波测量距离通常是用于煤矿，有利于保证计量的精确，它被用来做出准确的温度测量，有利于保证计量的精确,还需要作出准确的温度测量。
传统的温度测量是由经典的孤立传感器，它的缺点如下：
缓慢的反应速率、高测量误差、复杂的安装、调试和不方便远距离传输。
在这篇论文里，智能温度监控和控制已经通过DS18B20温度传感器和以AT89S52单片机为平台而成为现实。
DS18B20具有一些优势,主要包括数字计数，直接以数字的形式输出测量的温度，更少的温度误差，分辨率高、抗干扰能力强的特点,远距离输送和串行总线接口。
与传统的温度测量方法比较，单片机实现了温度测量的温度数据存储和分析、远程传
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