Taw qhia rau NFC Card Pawg

1, Txheej txheem cej luam ntawm NFC daim npav
NFC (Nyob ze Field Communication) yog ib qho kev sib txuas lus sib txuas lus nyob ze uas tso cai rau cov khoom siv hluav taws xob los ua cov ntaub ntawv tsis sib cuag hauv ob peb centimeters ntawm qhov deb. NFC phaib yog daim npav ntse uas siv NFC thev naus laus zis thiab feem ntau muaj ib lossis ntau NFC chips rau khaws cia thiab xa cov ntaub ntawv.
2, NFC daim npav pawg
NFC daim npav tuaj yeem raug cais raws li cov qauv sib txawv thiab cov thev naus laus zis. Cov nram qab no yog ib co hom, uas yuav qhia nyob rau hauv kom meej:
1. Kev faib tawm los ntawm hom tshuab
(1) Daim npav ID: Daim npav ID yog daim npav NFC yooj yim tshaj plaws uas tsuas muaj tus lej cim tshwj xeeb (UID) txhawm rau txheeb xyuas daim npav. Daim npav ID feem ntau yog siv rau kev txheeb xyuas yooj yim thiab taug qab daim ntawv thov, vim lawv tsis muab cov ntaub ntawv khaws cia lossis kev ruaj ntseg nta.
(2) IC phaib: IC phaib (daim npav sib xyaw ua ke) yog qhov nyuaj dua li daim npav ID, vim tias lawv muaj ib lossis ntau daim npav sib xyaw ua ke rau kev khaws cia thiab ua cov ntaub ntawv. IC phaib tuaj yeem muab faib ua ob hom tseem ceeb: daim npav nco thiab daim npav microprocessor.
Daim npav nco: Ib daim npav nco muaj RAM lossis EEPROM (tsim hluav taws xob tshem tau programmable nyeem nkaus xwb nco) siv los khaws cov ntaub ntawv. Lawv feem ntau yog siv rau cov ntawv thov uas yuav tsum tau nyeem ntau zaus thiab sau cov ntaub ntawv, xws li daim npav thauj pej xeem, daim npav tswj xyuas, thiab lwm yam.
Microprocessor Card: Ib daim npav microprocessor muaj ib lossis ntau dua microprocessor chips siv los ua cov kev suav nyuaj thiab kev ua haujlwm encryption. Lawv feem ntau yog siv rau cov ntawv thov uas yuav tsum muaj kev ruaj ntseg thiab cov yam ntxwv nyuaj, xws li daim npav hauv txhab nyiaj, daim npav ID, thiab lwm yam.
2. Muab faib los ntawm kev sib txuas lus raws tu qauv
(1) Hom A: Hom A yog thawj qhov kev sib txuas lus raws tu qauv tau teev tseg hauv NFC tus qauv, raws li ISO / IEC 14443A tus qauv. Hom A phaib muaj kev sib kis ceev ceev thiab kev sib txuas lus ntev dua, tab sis lawv siv zog ntau dua.
(2) Hom B: Hom B yog qhov kev sib txuas lus thib ob uas tau teev tseg hauv NFC tus qauv, raws li ISO / IEC 14443B tus qauv. Hom B daim npav muaj kev siv hluav taws xob qis dua thiab kev sib txuas lus luv dua, tab sis kev sib kis qeeb qeeb.
(3) Hom F: Hom F yog tus qauv kev sib txuas lus thib peb uas tau teev tseg hauv NFC tus qauv, raws li JIS X 6319-4 tus qauv (tsim los ntawm Nyiv Electronics thiab Information Technology Industry Association). Hom F daim npav sib xyaw ua ke qhov zoo ntawm Hom A thiab Hom B, nrog kev sib kis ceev ceev thiab qis zog siv.
3. Kev faib tawm los ntawm daim ntawv thov teb
(1) Daim npav them nyiaj: daim npav them nyiaj yog ib qho ntawm cov ntawv thov feem ntau hauv NFC daim npav. Lawv siv rau kev them nyiaj hauv xov tooj, hnab nyiaj hluav taws xob, thiab lwm yam kev siv, thiab tuaj yeem hloov pauv cov npav hauv txhab nyiaj thiab nyiaj ntsuab rau kev lag luam. Cov npav them nyiaj feem ntau suav nrog cov ntawv cim encryption thiab daim ntawv thov them nyiaj kom ntseeg tau tias kev nyab xeeb thiab kev ntseeg siab ntawm kev hloov pauv.
(2) Access Card: Ib daim npav nkag tau siv los tswj kev nkag mus rau thaj chaw tshwj xeeb lossis chaw. Lawv tuaj yeem khaws cov ntaub ntawv tus neeg siv tus kheej thiab nkag mus rau kev tso cai, thiab ua tiav wireless authentication thiab tso cai los ntawm NFC thev naus laus zis. Daim npav nkag tau feem ntau siv hauv cov tsev ua haujlwm, cov zej zog nyob, tsev kawm ntawv, thiab lwm qhov chaw.
(3) Daim npav tsheb thauj neeg pej xeem: daim npav thauj pej xeem yog siv los thauj cov tsheb thauj neeg pej xeem (xws li tsheb npav, subway, thiab lwm yam). Lawv tuaj yeem khaws tus neeg siv cov ntaub ntawv caij tsheb thiab sib npaug, thiab ua tiav kev them nyiaj sai thiab kev pov thawj los ntawm NFC thev naus laus zis. Cov npav thauj pej xeem feem ntau yog sib xyaw nrog cov txheej txheem ntawm cov neeg tsav tsheb thauj neeg pej xeem, ua kom yooj yim rau cov neeg siv rov qab thiab xyuas lawv cov nyiaj tshuav.
(4) Daim npav ID: Daim npav ID yog siv los txheeb xyuas tus neeg siv tus kheej thiab kev tso cai. Lawv tuaj yeem khaws cov neeg siv cov ntaub ntawv tus kheej, cov duab, cov ntiv tes, thiab lwm yam ntaub ntawv biometric, thiab ua tiav kev nyeem ntawv wireless thiab txheeb xyuas los ntawm NFC thev naus laus zis. Daim npav ID feem ntau yog siv rau hauv thaj chaw uas xav tau kev nyab xeeb siab, xws li tsoomfwv, tub rog, thiab nyiaj txiag.
3, Cov yam ntxwv ntawm daim npav NFC
NFC phaib muaj ntau yam zoo, xws li kev yooj yim, kev sib kis ceev, thiab kev ruaj ntseg siab. Lawv tuaj yeem ua tiav cov ntaub ntawv nyeem thiab sau cov haujlwm hauv lub sijhawm luv luv, thiab txhawb kev encryption thiab authentication functions kom muaj kev ruaj ntseg ntawm cov ntaub ntawv xa mus. Tsis tas li ntawd, NFC daim npav muaj ntau qhov chaw thov thiab hloov tau yooj yim, thiab tuaj yeem hloov kho thiab tsim raws li qhov xav tau sib txawv.
Hauv luv luv, NFC phaib yog daim npav ntse muaj zog nrog rau daim ntawv thov dav dav thiab kev lag luam xav tau. Nrog rau qhov nrov thiab kev loj hlob ntawm thev naus laus zis xws li kev them nyiaj mobile thiab kev tswj xyuas kev nkag mus tau ntse, NFC phaib yuav ua lub luag haujlwm tseem ceeb dua yav tom ntej.

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