DVS技術(shù)研究及其在全站儀設備中的應用.pdf

1、蘇州大學碩士學位論文DVS技術(shù)研究及其在全站儀設備中的應用姓名：詹云申請學位級別：碩士專業(yè)：計算機應用技術(shù)指導教師：孫涌201105AbstractDVSTechnologyanditsApplicationintheTotalStationequipmentDVSTechnologyanditsApplicationintheTotalStationequipmentAbstractWiththegrowthofchipdensity

2、andperformancerequirement，theembeddedsystempowerconsumptiongrowexponentially，butstandsouttheproblemofhighenergyconsumptionofportableinstrumentswithdrybatteriesEnsuingproblemslimitthedevelopmentofembeddedproducts，likeincr

3、easingcostofchipcoolinganddecreaseofchipstabilityAndhence，cuttingdownpowerconsumptionbecomesoneofthekeyaspectsofportabledesignTotalstationdeviceistheelectronicstationispoweredbydrybatteriesandintegratessuchfunctionsasmea

4、surement，calculationanddisplaytogetherThehighpowerconsumptiongeneratedbysystemoperationlimitsthetimeofdevices’outworkLettingdownpowerconsumptionofthetotalstationcanprolongoperationtimeofthisdevice，andreducedelaytimecause

5、dbytheproblemDVSissoftwareoflowenergyconsumptionsupportedbyhardware，whichdynamicallyadjuststheprocessorImplementationvoltage，decreasingsystemenergyconsumptionbyextendingoperationtimeofthetasksAtcurrent，thestudiesofDVS，ma

6、inlybasedontheoreticalcalculation，rarelyappliedinembeddedproductsThispaperstudiestherealtimeDVSalgorithms，andappliesittototalstationequipment，whicheffectivelysolvesthepowerconsumptionproblemoftotalstationequipmentThisthe

7、sismainlydiscussesthefollowingpoints(1)Firstly，thetheoreticalfoundationofDVS’SlowenergyconsumptionismadethroughanalysisofCMOSintegratedcircuitOnthebasisofadjustablevoltageofprocessor，thispaperelaboratesDVS’lowconsumption