Kev sib xyaw ntawm RFID

1. RFID tags (xov tooj cua zaus phaib): RFID tags feem ntau hu ua electronic tags, tseem hu ua tag, transponders, thiab teb. Lawv tuaj yeem muab faib ua active (active) thiab passive (passive) raws li lawv txoj kev ua haujlwm. Passive RFID cim npe muaj nyob ze nyeem ntawv thiab sau ntawv nyob deb thiab tus nqi qis; Active RFID tags tuaj yeem muab kev nyeem ntawv ntev dua thiab sau qhov deb, tab sis xav tau roj teeb lub zog thiab kim dua. Passive RFID tags muaj ib daim ntawv cim npe thiab ib lub kav hlau txais xov lossis kauj. Lawv siv lub hauv paus ntsiab lus ntawm inductive coupling lossis electromagnetic backscatter coupling kom ua tiav kev sib txuas lus nrog cov neeg nyeem thiab sau ntawv. RFID tags khaws cov cim tshwj xeeb, feem ntau yog 64 khoom, 96 khoom, lossis ntau dua. Nws qhov chaw nyob yog siab dua qhov chaw muab los ntawm barcode, yog li nws tuaj yeem ua tiav ib yam khoom coding. Thaum ib daim ntawv RFID nkag mus rau qhov chaw ua haujlwm ntawm tus nyeem ntawv / tus kws sau ntawv, nws tuaj yeem tsim kom muaj qhov sib txawv ntawm ob qho kawg ntawm tus kav hlau txais xov tag raws li txoj cai inductive coupling (hauv thaj tsam ze ntawm thaj chaw ua haujlwm) lossis electromagnetic backscatter coupling txoj cai ( nyob rau hauv qhov chaw ua haujlwm nyob deb), thiab tsim ib qho tsis muaj zog tam sim no nyob rau hauv txoj kev tag nti. Yog tias qhov kev siv tam sim no dhau ntawm qhov pib, RFID tag chip Circuit Court yuav qhib kom ua haujlwm, Yog li ua haujlwm nyeem / sau ntawm lub cim xeeb hauv daim ntawv cim npe, thiab microcontroller tuaj yeem ntxiv cov haujlwm nyuaj xws li passwords lossis kev sib tsoo algorithms. Cov qauv sab hauv ntawm RFID tag nti feem ntau suav nrog plaub ntu: RF pem hauv ntej-kawg, analog pem hauv ntej-kawg, digital baseband processing unit, thiab EEPROM cia tsev.
2. Tus nyeem ntawv / Tus Sau: Tus nyeem ntawv / sau ntawv, tseem hu ua tus nyeem ntawv lossis tus neeg nug, yog ib lub cuab yeej uas ua haujlwm nyeem / sau ntawv ntawm RFID cim npe. Nws feem ntau suav nrog ob ntu: xov tooj cua zaus module thiab lub teeb liab digital ua haujlwm. Tus nyeem ntawv / sau ntawv yog qhov tseem ceeb tshaj plaws hauv kev tsim kho RFID. Ntawm ib sab, lub zog hluav taws xob tsis muaj zog xa rov qab los ntawm RFID tag nkag mus rau RF module ntawm tus nyeem ntawv / sau ntawv los ntawm tus kav hlau txais xov thiab hloov mus rau hauv cov teeb liab digital, uas tom qab ntawd ua tiav thiab hloov kho los ntawm cov teeb liab ua haujlwm ntawm tus nyeem ntawv / tus kws sau ntawv, thiab tom qab ntawd cov ntaub ntawv xa rov qab tau muab los ntawm nws los ua kom tiav cov cim lossis nyeem / sau ua haujlwm ntawm RFID lossis; Ntawm qhov tod tes, cov txheej txheem sab saud nruab nrab thiab daim ntawv thov software cuam tshuam nrog tus nyeem ntawv thiab sau ntawv los ua kom tiav cov lus qhia ua haujlwm thiab cov ntaub ntawv sib sau ua ke thiab uploading. Thaum uploading cov ntaub ntawv, cov neeg nyeem thiab cov neeg sau ntawv yuav ua qhov duplication filtering los yog kev lim dej yooj yim ntawm RFID tag atomic txheej xwm, ua rau cov neeg nyeem thiab sau cov xwm txheej, thiab tom qab ntawd xa lawv los txo cov kev sib pauv ntawm cov ntaub ntawv nrog nruab nrab thiab daim ntawv thov software. Yog li ntawd, microprocessors thiab embedded systems kuj tau koom ua ke nyob rau hauv ntau cov neeg nyeem thiab cov neeg sau ntawv kom ua tiav qee qhov kev ua haujlwm nruab nrab, xws li kev tswj hwm teeb liab, kev txheeb xyuas qhov tsis sib xws thiab kho. Nyob rau hauv lub neej yav tom ntej, cov neeg nyeem thiab cov kws sau ntawv yuav nthuav tawm cov qauv ntawm kev txawj ntse, miniaturization, thiab kev sib koom ua ke, thiab tseem yuav muaj kev tswj hwm lub hauv ntej kawg, xws li kev cuam tshuam ncaj qha nrog lwm cov khoom siv hauv kev lag luam lossis txawm ua tus tswj hwm rau kev teem caij online. . Hauv Is Taws Nem ntawm Yam, cov neeg nyeem thiab cov kws sau ntawv yuav dhau los ua cov cuab yeej tseem ceeb uas ib txhij muaj kev sib txuas lus, tswj, thiab suav ua haujlwm.
3. Kav hlau txais xov: Ib lub kav hlau txais xov yog ib qho khoom siv uas ua rau kev nthuav dav ntawm cov xov tooj cua zaus teeb liab thiab tsim kev sib txuas lus wireless ntawm RFID cim npe thiab nyeem ntawv. RFID system suav nrog ob hom kav hlau txais xov: ib qho yog lub kav hlau txais xov ntawm RFID tag, uas tau muab tso rau hauv RFID tag. Lwm qhov yog tus nyeem ntawv kav hlau txais xov, uas tuaj yeem ua rau hauv tus nyeem ntawv lossis txuas nrog RF tso zis chaw nres nkoj ntawm tus nyeem ntawv los ntawm coaxial cable. Cov khoom siv kav hlau txais xov feem ntau siv cov tshuab sib cais transceiver kom ua tiav kev sib koom ua ke ntawm kev xa tawm thiab tau txais cov haujlwm. Qhov tseem ceeb ntawm cov kav hlau txais xov hauv RFID systems feem ntau tsis saib xyuas. Hauv kev siv tswv yim, cov kav hlau txais xov tsim tsis yog qhov tseem ceeb cuam tshuam rau kev txheeb xyuas ntau yam ntawm RFID systems. Cov kav hlau txais xov ua haujlwm siab yuav tsum tsis yog tsuas yog zoo impedance txuam cov yam ntxwv, tab sis kuj tsim tshwj xeeb rau kev taw qhia, polarization, thiab zaus cov yam ntxwv raws li cov yam ntxwv ntawm daim ntawv thov ib puag ncig.
4. Middleware: Middleware yog ib qho software tshwj xeeb uas yog cov lus taw qhia thiab tuaj yeem txais kev thov los ntawm daim ntawv thov software kawg, pib ua haujlwm ntawm ib lossis ntau tus neeg nyeem ntawv, tau txais, txheej txheem, thiab xa cov ntaub ntawv xa mus rau daim ntawv thov software. Hauv kev siv RFID, cov khoom nruab nrab tuaj yeem tsis tsuas yog tiv thaiv kev ntseeg siab thiab kev ruaj ntseg teeb meem tshwm sim los ntawm ntau yam kev lag luam, kho vajtse interfaces, thiab cov qauv siv tau los ntawm cov khoom siv hauv qab, tab sis kuj muab kev koom tes ntawm kev lag luam cov ntaub ntawv thiab kev tswj cov ntaub ntawv hauv ntau txheej, faib , thiab heterogeneous cov ntaub ntawv ib puag ncig rau saum daim ntawv thov software. Cov ntaub ntawv hauv lub cim xeeb ntawm cov khoom nruab nrab kuj tuaj yeem lim, sib sau ua ke, thiab suav cov neeg nyeem / sau cov xwm txheej raws li ib lossis ntau tus neeg nyeem, paub daws teeb meem kev lag luam cov ntaub ntawv uas muaj txiaj ntsig rau daim ntawv thov software los tsim cov xwm txheej ua lag luam kom tau raws li kev rov qab, luam tawm / sau npe, thiab tswj kev thov los ntawm ntau tus neeg siv khoom.
5. Daim Ntawv Thov Software: Daim ntawv thov software yog tib neeg-khoos phis tawj sib cuam tshuam uas ncaj qha ntsib tus neeg siv kawg ntawm daim ntawv thov RFID. Nws pab tus neeg siv ua tiav cov lus txib ua haujlwm ntawm tus nyeem ntawv thiab tus kws sau ntawv, nrog rau kev teeb tsa kev xav rau nruab nrab. Nws maj mam hloov RFID atomic txheej xwm rau hauv cov xwm txheej ua lag luam uas tus neeg siv tuaj yeem nkag siab, thiab siv qhov pom kev sib cuam tshuam rau cov zaub. Vim tias daim ntawv thov software yuav tsum tau tsim tshwj xeeb rau cov lag luam sib txawv hauv ntau daim ntawv thov, nws yog qhov nyuaj kom muaj qhov dav dav. Los ntawm qhov kev xav ntawm kev ntsuam xyuas daim ntawv thov, cov neeg siv kev paub dhau los ntawm daim ntawv thov software sab yog ib qho tseem ceeb hauv kev txiav txim siab ua tiav ntawm RFID daim ntawv thov rooj plaub.