Covtaug qab deb ntawm RFID cim npenyob ntawm hnyavzaus, tag hom, nyeem ntawv lub zog, thiab ib puag ncig. Nov yog cov ncauj lus kom ntxaws:
1. nrug los ntawm RFID Hom
| RFID Hom | Ntau zaus | Hom Nyeem Range | Sau ntawv |
|---|---|---|---|
| LF (tsawg zaus) | 125-134 kHz | 1-10 cm (0.4-4 nyob rau hauv) | Ntau yam luv heev, siv rau kev tswj xyuas, tsiaj tagging |
| HF / NFC (High zaus) | 13.56 MHz | 10 cm max (4 nyob rau hauv) | NFC{0}}enabled cards/fobs, smart posters; luv -ntau yam rau kev nyab xeeb thiab kev sib tham hauv xov tooj |
| UHF (Ultra-Ntau zaus) | 860–960 MHz | 1-12 m (3-40 ft) rau cov cim cim; mus txog 20+ m nrog siab - cov neeg nyeem ntawv thiab cov cim tshwj xeeb | Siv rau warehouse, logistics, tus xov tooj, thiab ntev - nkag mus |
| Active RFID (roj teeb -powered) | LF/HF/UHF | 30-100 m (100-300 ft), qee cov cim tshwj xeeb txog li 1 km | Lub roj teeb tso cai rau kev nyeem ntawv ntev dua, tuaj yeem tshaj tawm ib ntus |
2. Cov yam ntxwv cuam tshuam rau RFID ntau yam
Tag hom
Passive tags cia siab rau tus nyeem ntawv kom muaj zog rau lawv → luv dua
Cov cim npe nquag muaj lub roj teeb → ntev dua
Ntau zaus
LF: luv heev
HF/NFC: luv
UHF: ntev
Microwave (2.45 GHz RFID): tshwj xeeb ntev - ntau yam
Nyeem ntawv hwj chim thiab kav hlau txais xov
Siab dua - cov neeg nyeem ntawv muaj zog thiab cov kav hlau txais xov loj dua nce qhov deb
Orientation thiab alignment nrog tag teeb meem
Ib puag ncig
Hlau thiab dejnqus los yog cuam tshuam RF signals, txo ntau yam
Qhib huab cua los yog kab - ntawm - pom kev txhim kho nyob deb
Tag design
Ntawm -cov ntawv cim hlau lossis cov ntawv rugged tej zaum yuav txo lossis nce ntau nyob ntawm tus kav hlau txais xov
3. Cov piv txwv zoo
Gym nkag mus rau fobs (LF / HF):5-10 cm los ntawm tus nyeem ntawv
Library/NFC cards:~ 10 cm
Warehouse UHF tags ntawm pallets:3-10 m nrog tus qauv tuav los yog cov nyeem tas
Kev them nyiaj los yog chaw nres tsheb UHF tag:10–20 m rau lub tsheb - mounted nyeem
Active tsheb taug qab:Txog li 100 m lossis ntau dua nyob ntawm lub roj teeb thiab ib puag ncig
4. Qhov tseem ceeb Takeaways
Luv -ntau RFID (LF/HF/NFC):centimeters mus decimeters → zoo tagnrho rau kev ruaj ntseg nkag
Ntev -ntau RFID (UHF/Active):meters mus rau pua pua meters → zoo tagnrho rau logistics, tsheb, thiab cov cuab tam nrhiav
Ib puag ncig thiab kev tso kawm yog qhov tseem ceeb:hlau, dej, los yog nyeem ntawv orientation yuav txo tau ntau yam dramatically