Ntau tus neeg tsis meej pem RFID thiab NFC daim npav vim tias ob lub thev naus laus zis siv xov tooj cua sib txuas lus thiab feem ntau zoo li lub cev zoo ib yam.
Nyob rau hauv qhov tseeb, NFC yog ib tug subset ntawm RFID technology.
Qhov no txhais tau tias:
Txhua daim npav NFC yog daim npav RFID, tab sis tsis yog txhua daim npav RFID yog daim npav NFC.
Txoj kev yooj yim tshaj plaws los txheeb xyuas daim npav yog nyob ntawm:
- qhov zaus
- kev nyeem ntawv nrug
- smartphone compatibility
- hom chip
- daim ntawv thov scenario
1. Xyuas seb daim npav puas ua haujlwm nrog lub xov tooj smartphone
NFC Cards
Feem ntau daim npav NFC tuaj yeem tshawb pom ncaj qha los ntawm NFC -enabled smartphones.
Piv txwv li:
- Cov xov tooj Android feem ntau txhawb NFC nyeem ntawv ib txwm muaj
- iPhones txhawb ntau NFC raws tu qauv thiab
Yog tias daim npav tuaj yeem:
- ua rau lub xov tooj ua
- qhib qhov URL
- yuav scan los ntawm NFC app
- nyeem hauv xov tooj
- Tom qab ntawd nws yuav zoo li NFC daim npav.
Feem ntau NFC- cov chips sib xws suav nrog:
- NTAG 213
- NTAG 215
- NTAG 216
- MIFARE Ultralight
- MIFARE DESFIRE
- NTAG 424 DNA
Tsis yog -NFC RFID Cards
Ntau daim npav RFID tsis tuaj yeem nyeem los ntawm smartphones.
Piv txwv:
- 125kHz EM phaib
- HID Prox daim npav
- LF Access Control cards
Cov no feem ntau xav tau RFID nyeem ntawv tshwj xeeb.
2. Txheeb xyuas qhov ua haujlwm zaus
RFID systems feem ntau ua haujlwm hauv peb qhov ntau zaus:
| Hom | Ntau zaus | Hom kev siv |
|---|---|---|
| LF RFID daim ntawv pov thawj | 125 kHz | Qhov rooj nkag, tuaj koom |
| HF RFID / NFC | 13.56 MHz | NFC them nyiaj, daim npav ntse |
| UHF RFID nyeem ntawv | 860–960MHz | Nrhiav cov khoom |
NFC Ib txwm siv 13.56MHz
Yog tias daim npav ua haujlwm ntawm:
13.56 MHz
nws tuaj yeem txhawb NFC.
Txawm li cas los xij, tsis yog txhua 13.56MHz RFID daim npav txhawb nqa NFC smartphone kev sib txuas lus.
3. Tshawb xyuas qhov Kev Nyeem Ntawv nrug
NFC Cards
Feem ntau ua haujlwm ntawm:
0-5 cm deb
NFC xav tau kev sib ze heev rau kev sib txuas lus ruaj ntseg.
UHF RFID daim npav
Yuav tau nyeem los ntawm:
- ob peb meters deb
- Cov no feem ntau yog siv rau:
- warehouse nrhiav
- kev txheeb xyuas lub tsheb
- kev tswj xyuas logistics
Yog tias daim npav tuaj yeem kuaj pom los ntawm qhov deb, nws yog UHF RFID es tsis yog NFC.
4. Siv NFC Scanning App
Ib txoj hauv kev yooj yim heev yog siv lub cuab yeej smartphone NFC.
Cov apps uas pom zoo muaj xws li:
Rau Android:
- NFC Cov cuab yeej
- NXP TagInfo
Rau iPhone:
- NFC cuab yeej rau iOS no
Yog tias lub app tuaj yeem nyeem:
- UID
- yam chip
- NDEF cov ntaub ntawv
- cov ntaub ntawv nco
ces daim npav yuav zoo li NFC- tau tshaj.
5. Nrhiav cov ntawv luam tawm
Qee daim npav muaj cov ntawv luam tawm xws li:
- NFC
- MIFARE
- DESFire
- HID
- SIB 4200
Cov cim no yuav qhia txog hom kev siv tshuab.
Txawm li cas los xij, ntau daim npav yog tag nrho, tshwj xeeb tshaj yog cov khoom OEM.
6. Txheeb xyuas Daim Npav Chip Hom
Txoj kev tseeb tshaj plaws yog txheeb xyuas cov nti sab hauv.
Common NFC Chips
Ua los ntawm cov tuam txhab xws li:
- NXP Semiconductors
- STMicroelectronics
Piv txwv:
- NTAG 213
- NTAG 215
- MIFARE Classic
- DESFire EV 2
- ST 25
Common Non-NFC RFID Chips
Piv txwv:
- SIB 4200
- TIAB SA 4100
- HID Prox
- T5577
Cov no feem ntau tsis tuaj yeem sib txuas lus nrog smartphones.
Cov lus sib piv ceev
| Feature | NFC Card | Daim npav RFID |
| Smartphone nyeem tau | Yog lawm | Feem ntau tsis muaj |
| Ntau zaus | 13.56 MHz | 125kHz / 13.56MHz / UHF |
| Nyeem ntawv nrug | luv heev | Luv mus ntev heev |
| Txhawb kev sib cuam tshuam mobile | Yog lawm | Feem ntau tsis muaj |
| Tej kev siv | Kev them nyiaj, cov ntawv tshaj tawm ntse, NFC xauv | Access tswj, logistics, taug qab |
Simple Rule of Thumb
Yog ib daim card:
- ua haujlwm nrog lub smartphone
- yuav tsum tau kaw kais deb
- txhawb NFC apps
ces nws yog tej zaum NFC daim npav.
Yog nws:
- tsuas yog ua haujlwm nrog tus nyeem ntawv tshwj xeeb
- ua haujlwm ntawm qhov deb
- yog siv tsuas yog rau kev lag luam mus txog qhovtwg lossis qub kev nkag mus tswj tshuab
ces nws yog tej zaum ib txwm RFID card.