RFID kav hlau txais xov yog ib feem tseem ceeb kom paub txog kev nyeem ntawv ntawm RFID hardware ntaus ntawv.Qhov sib txawv ntawm lub kav hlau txais xov ncaj qha cuam tshuam rau kev nyeem ntawv nyob deb, ntau yam, thiab lwm yam, thiab lub kav hlau txais xov yog qhov tseem ceeb cuam tshuam rau kev nyeem ntawv.Tus kav hlau txais xov ntawm lubRFID nyeem ntawvtuaj yeem muab faib ua cov kab polarization thiab ncig polarization raws li lub zog hom.
Lub polarization ntawm tus kav hlau txais xov yog hais txog txoj cai hais tias cov kev taw qhia ntawm hluav taws xob teb vector hloov nrog lub sij hawm nyob rau hauv lub siab tshaj plaws hluav taws xob kev taw qhia ntawm lub kav hlau txais xov.Cov tshuab RFID sib txawv siv cov kav hlau txais xov polarization sib txawv.Qee daim ntawv thov tuaj yeem siv linear polarization, piv txwv li, ntawm cov kab sib dhos, txoj hauj lwm ntawm lub tshuab hluav taws xob yog qhov ruaj khov, thiab cov kav hlau txais xov ntawm cov hluav taws xob tag tuaj yeem siv linear polarization.Tab sis feem ntau, txij li kev taw qhia ntawm lub cim hluav taws xob tsis paub, feem ntau RFID systems siv cov kav hlau txais xov polarized ncig los txo qhov rhiab heev ntawm RFID system mus rau kev taw qhia ntawm hluav taws xob tag.Raws li cov duab trajectory, polarization tuaj yeem muab faib ua linear polarization, ncig polarization thiab elliptical polarization, ntawm cov linear polarization thiab ncig polarization yog siv ntau dua.
RFID linearly polarized kav hlau txais xov
Lub electromagnetic yoj tawm los ntawm tus nyeem ntawv kav hlau txais xov ntawm cov kav hlau txais xov polarized linear yog linear, thiab nws cov electromagnetic teb muaj zog directionality, thiab muaj cov yam ntxwv nram qab no:
1) Xov tooj cua zaus zog yog tawm los ntawm tus kav hlau txais xov nyob rau hauv ib tug linear zam;
2) Cov kab hluav taws xob muaj qhov sib txawv ntawm lub tshuab electromagnetic, uas muaj zog dua li cov kav hlau txais xov polarized, tab sis qhov ntau yog nqaim thiab ntev dua;
3) Muab piv nrog lub kav hlau txais xov polarized ncig, qhov kev nyeem ntawv ib leeg yog ntev dua, tab sis vim muaj kev coj ncaj ncees, kev nyeem ntawv dav dav dua;
4) Tags (Identification Objects) yoog rau kev taw qhia txog kev txiav txim siab mus ncig
Thaum lub RFID tag yog sib npaug mus rau tus kav hlau txais xov ntawm tus nyeem ntawv, tus kav hlau txais xov polarized linearly muaj tus nqi nyeem ntawv zoo dua.Yog li ntawd, cov kav hlau txais xov linearly polarized feem ntau yog siv los nyeem cov cim npe uas nws paub txog kev mus ncig, xws li pallets.Txij li thaum electromagnetic yoj beam ntawm lub kav hlau txais xov yog txwv rau qhov nqaim nyob rau hauv lub dav hlau loj ntawm tus nyeem ntawv kav hlau txais xov, lub zog kuj tseem muaj zog thiab tuaj yeem nkag mus rau cov ntaub ntawv nrog qhov ntom ntom dua.Yog li ntawd, nws tau zoo dua nkag siab lub zog rau cov ntaub ntawv muaj txiaj ntsig ntau dua thiab yog qhov tseeb ntawm cov qauv ntawm kev sib pauv ntawm cov cim npe thiab qhov ntev ntawm ib qho - txoj kev nyeem ntawv nrug.Yog li ntawd, tus kav hlau txais xov ntawm tus nyeem ntawv yuav tsum sib npaug rau lub dav hlau ntawm daim ntawv lo thaum siv nws, thiaj li yuav muaj kev nyeem ntawv zoo.
RFID Circularly Polarized kav hlau txais xov
Lub electromagnetic teb emission ntawm lub voj voog polarized kav hlau txais xov yog helical beam, uas muaj cov yam ntxwv hauv qab no:
1) Kav hlau txais xov RF lub zog yog tawm los ntawm lub voj voog helical kav hlau txais xov;
2) Lub voj voog helical beam muaj ntau qhov kev taw qhia electromagnetic teb, thiab qhov ntau ntawm cov electromagnetic teb yog dav, tab sis nws lub zog yog me dua li ntawm cov kav hlau txais xov linearly polarized;
3) Qhov chaw nyeem ntawv yog qhov dav, tab sis piv nrog cov kav hlau txais xov kab polarization, qhov rhiab heev ntawm ib-txoj kev tag yog qis dua thiab kev nyeem ntawv luv luv;
4) Muaj feem xyuam rau cov cim npe (cov khoom pov thawj) uas nws cov kev taw qhia tsis meej.
Lub voj voog electromagnetic beam ntawm lub kav hlau txais xov polarized ncig muaj peev xwm xa tawm mus rau txhua qhov kev qhia ib txhij.Thaum ntsib cov teeb meem, cov kab hluav taws xob electromagnetic ntawm lub kav hlau txais xov polarized ncig muaj zog thiab kev muaj peev xwm taug kev, uas ua rau muaj kev nyeem ntawv ntau ntxiv ntawm daim ntawv lo nkag mus rau lub kav hlau txais xov los ntawm txhua qhov kev qhia, yog li cov kev cai rau daim ntawv lo thiab cov kev taw qhia taug kev yog qhov ua siab ntev;Txawm li cas los xij, qhov dav ntawm lub voj voog ncig kuj ua rau muaj kev txheeb ze txo qis hauv kev siv hluav taws xob hluav taws xob, kom lub cim npe tsuas tuaj yeem txaus siab rau ib feem ntawm lub zog hluav taws xob hluav taws xob hauv ib qho kev taw qhia, thiab kev nyeem ntawv deb kuj luv.Yog li ntawd, lub kav hlau txais xov polarized ncig yog tsim nyog rau lub sijhawm uas qhov kev taw qhia ntawm kev mus los ntawm lub cim npe (cov khoom siv txheeb xyuas) tsis paub, xws li qhov chaw thauj khoom tsis nyob ntawm qhov chaw faib khoom.
Raws li daim ntawv thov thiab cov khoom yam ntxwv, ShenzhenHandheld-Wirelessrfid cov cuab yeej siv feem ntau yog siv cov linear polarization thiab ncig polarization daws kom tau raws li cov kev xav tau ntawm cov haujlwm sib txawv, uas tuaj yeem siv rau hauv cov khoom lag luam stocktaking, khoom vaj khoom tsev thiab lwm yam dej num, thiab tau siv dav hauv logistics, tsev kho mob tshuaj, Lub zog, nyiaj txiag, kev ruaj ntseg pej xeem, kev kawm, kev sau se, kev thauj mus los, tourism, khw muag khoom, ntxhua khaub ncaws, tub rog thiab lwm yam lag luam.
Post lub sij hawm: Jan-07-2023