Keeb Kwm & Daim Ntawv Thov
NFC: Ib qho thev naus laus zis sib txuas lus wireless luv luv uas tso cai rau kev xa cov ntaub ntawv tsis sib cuag ntawm cov khoom siv hluav taws xob, sib pauv cov ntaub ntawv hauv qhov deb ntawm 10cm. Lub kaw lus sib txuas lus NFC muaj ob ntu ywj pheej: tus nyeem NFC thiab NFC tag. Tus nyeem NFC yog qhov nquag ntawm lub kaw lus uas "nyeem" (lossis ua tiav) cov ntaub ntawv ua ntej ua rau muaj kev teb tshwj xeeb. Nws muab lub zog thiab xa NFC cov lus txib mus rau qhov tsis ua haujlwm ntawm lub kaw lus (piv txwv li NFC tag). Feem ntau, ua ke nrog microcontroller, tus nyeem NFC muab lub zog rau thiab sib pauv cov ntaub ntawv nrog ib lossis ntau daim ntawv NFC. Tus nyeem NFC txhawb nqa ntau yam RF protocols thiab nta thiab tuaj yeem siv rau hauv peb hom sib txawv: nyeem / sau, peer-to-peer (P2P) thiab daim npav emulation. Lub zaus ua haujlwm ntawm NFC yog 13.56 MHz, uas yog ntawm qhov zaus siab, thiab cov qauv protocol yog ISO / IEC 14443A / B thiab ISO / IEC15693.
Cov ntawv cim NFC muaj ntau yam kev siv, xws li kev sib txuas thiab kev debugging, cov ntawv tshaj tawm, kev tiv thaiv kev cuav, thiab lwm yam.
1.Kev Sib Txuas & Kev Kho Qhov Teeb Meem
Los ntawm kev sau cov ntaub ntawv xws li lub npe thiab lo lus zais ntawm WiFi rau NFC daim ntawv lo ntawm NFC nyeem ntawv, lo rau daim ntawv lo rau qhov chaw tsim nyog, kev sib txuas tuaj yeem tsim tau los ntawm kev tso ob lub cuab yeej siv NFC ze rau ib leeg. Tsis tas li ntawd, NFC tuaj yeem ua rau lwm cov txheej txheem xws li Bluetooth, ZigBee. Kev sib txuas ua ke tshwm sim hauv ib pliag thiab NFC tsuas yog ua haujlwm thaum koj xav tau nws, yog li yuav tsis muaj kev sib txuas ntawm cov cuab yeej tsis tau xav txog thiab yuav tsis muaj kev tsis sib haum xeeb ntawm cov cuab yeej zoo li Bluetooth. Kev teeb tsa cov cuab yeej tshiab lossis nthuav koj lub network hauv tsev kuj yooj yim dua, thiab tsis tas yuav tshawb nrhiav kev sib txuas lossis sau lo lus zais.
Kev Tshawb Fawb Txog Kev Xaiv Khoom
Chip: Nws raug pom zoo kom siv NXP NTAG21x series, NTAG213, NTAG215 thiab NTAG216. Cov koob ntawm cov chips no ua raws li tus qauv NFC Hom 2 thiab kuj ua tau raws li tus qauv ISO14443A.
Kav hlau txais xov: NFC ua haujlwm ntawm 13.56MHz, siv cov txheej txheem txhuas etching coil antenna AL + PET + AL.
Kua nplaum: Yog tias qhov khoom uas yuav lo rau du thiab qhov chaw siv zoo, siv tau cov kua nplaum kub uas pheej yig lossis cov kua nplaum dej. Yog tias qhov chaw siv tsis ruaj khov thiab qhov khoom uas yuav lo rau tsis ruaj khov, siv tau cov kua nplaum roj kom nws ruaj khov dua.
Khoom siv nto: Siv tau daim ntawv txheej. Yog xav tau kev tiv thaiv dej, siv tau cov khoom PET lossis PP. Muaj peev xwm luam ntawv thiab qauv.
2. Kev Tshaj Tawm & Cov Ntawv Tshaj Tawm
Cov ntawv tshaj tawm ntse yog ib qho ntawm cov ntawv thov ntawm NFC thev naus laus zis. Nws ntxiv NFC cim npe rau cov ntawv tshaj tawm thawj lossis cov ntawv tshaj tawm loj, yog li thaum tib neeg pom cov ntawv tshaj tawm, lawv tuaj yeem siv lawv cov xov tooj ntse los luam theej daim ntawv cim npe kom tau txais cov ntaub ntawv tshaj tawm tseem ceeb dua. Hauv kev ua haujlwm ntawm cov ntawv tshaj tawm, NFC thev naus laus zis tuaj yeem ntxiv kev sib cuam tshuam ntau dua. Piv txwv li, daim ntawv tshaj tawm uas muaj NFC chip tuaj yeem txuas nrog cov ntsiab lus xws li suab paj nruag, yeeb yaj kiab, thiab txawm tias kev ua si sib tham, yog li nyiam ntau tus neeg kom nyob ntawm pem hauv ntej ntawm daim ntawv tshaj tawm thiab ua rau muaj kev cuam tshuam rau hom lag luam thiab kev txhawb nqa. Nrog rau qhov nrov ntawm cov xov tooj ntse nrog NFC functions, NFC cov ntawv tshaj tawm ntse kuj tseem siv rau ntau qhov chaw.
Cov ntaub ntawv hauv hom ntawv NDEF xws li cov ntawv tshaj tawm ntse, cov ntawv nyeem, URLs, tus lej hu, cov apps pib ua haujlwm, cov kev sib koom ua ke ntawm daim ntawv qhia, thiab lwm yam tuaj yeem sau rau hauv daim ntawv lo NFC rau cov khoom siv uas siv NFC nyeem thiab nkag mus. Thiab cov ntaub ntawv sau tuaj yeem raug encrypted thiab xauv kom tiv thaiv kev hloov pauv phem los ntawm lwm cov ntawv thov.
Kev Tshawb Fawb Txog Kev Xaiv Khoom
Chip: Nws raug pom zoo kom siv NXP NTAG21x series chips. Cov yam ntxwv tshwj xeeb uas NTAG21x muab yog tsim los txhim kho kev koom ua ke thiab kev yooj yim rau cov neeg siv:
1) Kev ua haujlwm nyeem ceev ceev tso cai rau kev luam theej cov lus NDEF tiav siv tsuas yog ib qho lus txib FAST_READ, yog li txo cov sijhawm nyeem hauv cov chaw tsim khoom ntau;
2) Kev ua tau zoo ntawm RF zoo dua, muab kev ywj pheej ntau dua hauv cov duab, qhov loj me thiab kev xaiv cov khoom siv;
3) 75 μm IC thickness xaiv txhawb kev tsim cov ultra-thin tags rau kev sib koom ua ke yooj yim dua rau hauv cov ntawv xov xwm lossis cov ntawv tshaj tawm, thiab lwm yam.;
4) Nrog 144, 504 lossis 888 bytes ntawm thaj chaw neeg siv, cov neeg siv tuaj yeem xaiv raws li lawv xav tau.
Kav hlau txais xov: NFC ua haujlwm ntawm 13.56MHz, siv cov txheej txheem txhuas etching coil antenna AL + PET + AL.
Kua nplaum: Vim tias nws siv rau ntawm cov ntawv tshaj tawm thiab cov khoom uas yuav tsum tau muab lo rau yog qhov du, cov kua nplaum kub uas pheej yig lossis cov kua nplaum dej siv tau.
Khoom siv nto: Siv tau daim ntawv kos duab. Yog tias xav tau kev tiv thaiv dej, siv tau cov khoom PET lossis PP. Muaj kev luam ntawv thiab qauv.
3. Tiv thaiv kev cuav
NFC daim ntawv cim tiv thaiv kev cuav yog daim ntawv cim hluav taws xob tiv thaiv kev cuav, uas feem ntau yog siv los txheeb xyuas qhov tseeb ntawm cov khoom, tiv thaiv cov khoom lag luam ntawm lub tuam txhab, tiv thaiv cov khoom cuav tiv thaiv kev cuav los ntawm kev ncig hauv khw, thiab tiv thaiv cov cai thiab kev txaus siab ntawm cov neeg siv khoom.
Daim ntawv lo tiv thaiv kev cuav hluav taws xob tau muab lo rau ntawm cov khoom ntim, thiab cov neeg siv khoom tuaj yeem txheeb xyuas daim ntawv lo tiv thaiv kev cuav hluav taws xob los ntawm APP ntawm NFC xov tooj ntawm tes, tshawb xyuas cov ntaub ntawv tseeb, thiab nyeem cov ntaub ntawv cuam tshuam nrog cov khoom. Piv txwv li: cov ntaub ntawv chaw tsim khoom, hnub tsim khoom, qhov chaw keeb kwm, cov lus qhia, thiab lwm yam, decrypt cov ntaub ntawv cim thiab txiav txim siab qhov tseeb ntawm cov khoom. Ib qho ntawm cov txiaj ntsig ntawm NFC thev naus laus zis yog nws yooj yim ntawm kev koom ua ke: cov ntawv lo NFC me tshaj plaws yog li 10 millimeters dav thiab tuaj yeem ntxig rau hauv cov khoom ntim, khaub ncaws lossis lub raj mis cawv.
Kev Tshawb Fawb Txog Kev Xaiv Khoom
1.Chip: Nws raug pom zoo kom siv FM11NT021TT, uas yog lub cim npe chip tsim los ntawm Fudan Microelectronics uas ua raws li ISO / IEC14443-A protocol thiab tus qauv NFC Forum Type2 Tag thiab muaj qhov qhib-circuit nrhiav kom tau. Nws tuaj yeem siv dav hauv cov teb xws li kev ntim khoom ntse, kev tiv thaiv khoom cuav, thiab kev tiv thaiv kev tub sab nyiag khoom.
Hais txog kev ruaj ntseg ntawm NFC tag chip nws tus kheej:
1) Txhua lub chip muaj 7-byte UID ywj pheej, thiab UID tsis tuaj yeem rov sau dua.
2) Thaj chaw CC muaj OTP ua haujlwm thiab tsis yooj yim rhuav kom tiv thaiv kev qhib tsis zoo.
3) Thaj chaw cia khoom muaj qhov ua haujlwm xauv nyeem xwb.
4) Nws muaj qhov kev xaiv ua haujlwm khaws cia uas tiv thaiv los ntawm lo lus zais, thiab tus lej siab tshaj plaws ntawm kev sim lo lus zais yog teeb tsa tau.
Ua teb rau cov neeg ua khoom cuav uas siv cov cim rov ua dua tshiab thiab sau cov cawv cuav rau hauv lub raj mis tiag tiag, peb tuaj yeem tsim cov ntawv NFC uas yooj yim tawg nrog cov qauv tsim ntawm cov cim, tsuav yog lub pob khoom qhib, daim cim yuav tawg thiab tsis tuaj yeem siv dua! Yog tias daim cim raug tshem tawm, daim cim yuav tawg thiab tsis tuaj yeem siv txawm tias nws raug tshem tawm.
2. Kav hlau txais xov: NFC ua haujlwm ntawm 13.56MHz thiab siv lub kav hlau txais xov hlau. Yuav kom nws tsis yooj yim puas, lub hauv paus ntawv siv ua lub kav hlau txais xov hlau thiab lub chip AL+Paper+AL.
3. Kua nplaum: Siv cov kua nplaum uas yaj sai sai rau daim ntawv hauv qab, thiab cov kua nplaum uas yaj sai sai rau cov khoom siv pem hauv ntej. Ua li no, thaum daim ntawv raug tev tawm, cov khoom siv pem hauv ntej thiab daim ntawv tom qab yuav sib cais thiab ua rau lub kav hlau txais xov puas, ua rau NFC ua haujlwm tsis zoo.
