測(cè)井電纜井下視頻數(shù)據(jù)高速傳輸系統(tǒng)的研究.pdf

1、西安石油大學(xué)碩士學(xué)位論文測(cè)井電纜井下視頻數(shù)據(jù)高速傳輸系統(tǒng)的研究姓名：鄧程華申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：測(cè)試計(jì)量技術(shù)及儀器指導(dǎo)教師：張家田20070515英文摘要Subject：ResearchontheHighspeedDownholeTransmissionSystemofVideoDatawithLoggingCableSpeciality：Testing＆MeasuringTechnologyandInstrumentName：Ins

2、tructor：mZh哩ang曲Ji蚰ati咖an(asi似gngnaature佃籃螯救)邳鱉)邋L隊(duì)ABSTRACTThehighspeeddownholetransmissionsystemofvideodatawithloggingcableisanessentialcomponentofthedownholevideoimageloggingsystemThehighspeedrealtimeaccuratetransmissi

3、onisachievedthroughthesurfaceimagelogginginstrumentandthedownholeinsllxtmentWiththedevelopmentofloggingtechnologytowardimageryandunitizationtheamountofdatauploadedthroughthedownholeinstrumentisbecomingincreasinglylarg％Th

4、erefore，tosolvethecommunicationbottlenecLdevelopingadatatransmissionsystemofhighefficiencyandhighcapacityhasbecomethehotspotofthenumericalcontrolwellloggingtechnologyresearchTheresearchobjectiveofthehighspeeddownholetran

5、smissionsystemofvideodatawithloggingcableisthatthetransmissionspeedcanreachupto1Mbps誦lha5000mcableThissystemadoptsthesinglecorecabletotransmitdownholeinformationandthetechnologyofDSPandCPLDarealsoappliedinthestudyanddeve

6、lopmentofthelogginginstrmnentThesysmmconsistsofthetwoparts，thesurfacemodulatorandthedownholedemodulatorwhichareconnected、ⅣithasinglecorecableThedownloadingsupplyofpowerandtheuploadingofsignalarerealizedsimultaneouslythro

7、ughasinglecorecableThedownholemodulatormodulatesdatainbufferaccordmgtothetransmissionprotocol，andthenthedataistransmittedtotheSUlfacAgwitha5000msinglecorecableFinallytheuploadeddataisamplifiedanddemodulatedTheresultofthi

8、sexperimentprovesthatthrougha5000mcableaclear300x300andfull—screenrealtimedynamicdownholeimageandtherelevantinformationarcobtained缸therateofIMbpsunderthissystemInconclusiontheaccurate，realtimeandhighefficientmonitoringof