Keeb Kwm & Daim Ntawv Thov
Cov thev naus laus zis RFID yog ib qho thev naus laus zis txheeb xyuas tus kheej raws li cov teeb liab wireless thiab tsim nyog rau ntau yam kev siv. Nws tau txais kev saib xyuas ntau dua hauv cov tsev qiv ntawv, cov ntaub ntawv thiab kev tswj hwm cov ntaub ntawv. Los ntawm kev ntxiv Cov ntawv cim RFID hauv tsev qiv ntawv rau cov phau ntawv, cov ntaub ntawv thiab cov ntaub ntawv khaws cia, cov haujlwm xws li kev nyeem ntawv tsis siv neeg, kev nug, kev rov qab tau thiab kev xa rov qab tuaj yeem ua tiav, txhim kho kev tswj hwm kev ua haujlwm thiab qib kev pabcuam ntawm cov ntaub ntawv sau.
Muaj ob hom tseem ceeb ntawmRFID cim npe rau cov phau ntawv siv rau hauv cov tsev qiv ntawv thiab kev tswj cov ntaub ntawv khaws cia, RFID HF daim ntawv lo thiab Cov ntawv cim RFID UHFOb daim ntawv lo no muaj cov yam ntxwv sib txawv. Cia kuv tshuaj xyuas lawv qhov sib txawv hauv qab no:
Cov thev naus laus zis RFID muaj peev xwm muab faib ua ntau hom raws li qhov zaus ua haujlwm sib txawv: zaus qis (LF), zaus siab (HF), zaus siab heev (UHF) thiab microwave (MW). Ntawm lawv, zaus siab thiab zaus siab heev yog ob phau ntawv siv dav tshaj plaws ntawm cov thev naus laus zis RFID tam sim no. Lawv txhua tus muaj lawv tus kheej qhov zoo thiab kev txwv, thiab muaj kev siv sib txawv hauv ntau qhov xwm txheej sib txawv.
Txoj Cai Ua Haujlwm: Cov thev naus laus zis RFID siab siv lub hauv paus ntsiab lus ntawm kev sib txuas ze-field inductive, uas yog, tus nyeem ntawv xa lub zog thiab pauv cov ntaub ntawv nrog lub cim npe los ntawm lub zog sib nqus. UHF RFID thev naus laus zis siv lub hauv paus ntsiab lus ntawm kev tawg hluav taws xob deb-field, uas yog, tus nyeem ntawv xa lub zog thiab pauv cov ntaub ntawv nrog lub cim npe los ntawm cov nthwv dej electromagnetic.
Kev tshuaj xyuas kev xaiv khoom
1. Cov Chips:HF pom zoo kom siv NXP ICODE SLIX chip, uas ua raws li cov txheej txheem ISO15693 thiab ISO/IEC 18000-3 Hom 1. Nws muaj lub cim xeeb EPC loj ntawm 1024 bits, uas cov ntaub ntawv tuaj yeem rov sau dua rau 100,000 zaug thiab khaws cia rau ntau tshaj 10 xyoo.
UHF pom zoo kom siv NXP UCODE 8, Alien Higgs 4, ua raws li cov txheej txheem ISO 18000-6C thiab EPC C1 Gen2, EPC. Nws muaj 128 ntsis neeg siv nco, 32. uas cov ntaub ntawv tuaj yeem rov sau dua rau 100,000 zaug thiab khaws cia tau ntau tshaj 10 xyoo.
2. Cov kav hlau txais xov: Cov kav hlau txais xov HF yog cov nyias nyias, uas txo qhov cuam tshuam ntawm ntau daim ntawv lo. Cov nthwv dej hluav taws xob tuaj yeem hloov qee lub zog mus rau cov cim npe tom qab lawv los ntawm lub kav hlau txais xov. Lawv yog ultra-nyias hauv qhov tsos, qis hauv tus nqi, zoo heev hauv kev ua tau zoo, thiab zais tau zoo heev. Yog li ntawd, 13.56mhz ntse nfc RFID tsev qiv ntawv cim npe yog qhov tsim nyog rau kev tswj hwm cov phau ntawv thiab cov thawv khaws cia. Txawm li cas los xij, hauv kev tswj hwm cov ntaub ntawv ib nplooj ntawv, nws feem ntau yog siv rau cov ntaub ntawv zais cia heev, xws li cov ntaub ntawv zais cia saum toj kawg nkaus, cov ntaub ntawv tseem ceeb ntawm cov neeg ua haujlwm, cov duab kos duab, thiab cov ntaub ntawv zais cia. Tsuas muaj ib lossis ob peb nplooj ntawv hauv cov ntaub ntawv no. Kev siv 13.56mhz HF rfid tsev qiv ntawv cim npe yuav sib tshooj ze, ua rau muaj kev cuam tshuam sib koom, cuam tshuam rau qhov tseeb ntawm kev lees paub, thiab ua tsis tau raws li cov kev cai tswj hwm. Hauv qhov no, nws raug pom zoo kom siv cov kev daws teeb meem UHF tagging.
3. Cov khoom siv nto: Ob qho tib si HF thiab UHF siv tau daim ntawv kos duab ua cov khoom siv saum npoo, thiab tuaj yeem luam tawm cov ntawv sau, cov qauv lossis cov lej barcodes. Yog tias koj tsis tas yuav luam tawm, koj tuaj yeem siv cov inlay ntub ncaj qha.
4. Kua nplaum: Feem ntau cov ntawv lo rau ntawm daim ntawv yog siv los lo rau. Yooj yim lo thiab tsis hnyav. Cov nplaum kub uas pheej yig lossis cov kua nplaum dej feem ntau siv tau.
5. Tso tawm daim ntawv: Feem ntau, siv daim ntawv glassine-backed nrog ib txheej roj silicone, uas tsis nplaum thiab ua rau nws yooj yim rhuav daim ntawv.
6. Nyeem ntau yam: HF RFID thev naus laus zis yog ib qho thev naus laus zis ze-field inductive coupling, thiab nws qhov ua haujlwm yog me me, feem ntau yog li ntawm 10 centimeters. UHF RFID thev naus laus zis yog ib qho thev naus laus zis hluav taws xob electromagnetic deb. Lub nthwv dej electromagnetic muaj qee qib ntawm kev nkag mus thiab nws qhov ua haujlwm yog loj, feem ntau ntau dua 1 'meter'. Qhov kev nyeem ntawv ntawm HF yog me me, yog li nws tuaj yeem nrhiav tau cov phau ntawv lossis cov ntaub ntawv khaws cia.
7. Kev nyeem ntawv ceev: Vim yog qhov txwv ntawm txoj cai sib txuas ze-field inductive, HF RFID thev naus laus zis muaj qhov nyeem qeeb thiab nws nyuaj rau nyeem ntau lub cim tib lub sijhawm. Vim yog qhov zoo ntawm txoj cai hluav taws xob electromagnetic deb-field, UHF RFID thev naus laus zis muaj qhov nyeem ceev dua thiab muaj nuj nqi nyeem pab pawg. UHF thev naus laus zis muaj qhov nyeem ntev dua thiab nyeem ceev dua, yog li nws yuav ua haujlwm tau zoo dua thaum sau cov phau ntawv lossis cov ntaub ntawv.
8. Muaj peev xwm tiv thaiv kev cuam tshuam: Qhov kev sib txuas inductive ze ntawm cov thev naus laus zis RFID siab-zaus txo qhov cuam tshuam wireless, ua rau cov thev naus laus zis siab-zaus "tiv thaiv" rau suab nrov ib puag ncig thiab kev cuam tshuam electromagnetic (EMI), yog li nws muaj peev xwm tiv thaiv kev cuam tshuam zoo. UHF siv lub hauv paus ntsiab lus ntawm kev tso tawm electromagnetic, yog li nws yooj yim dua rau kev cuam tshuam electromagnetic. Tib lub sijhawm, hlau yuav cuam tshuam cov teeb liab thiab dej tuaj yeem nqus cov teeb liab. Cov yam no yuav cuam tshuam rau kev ua haujlwm ib txwm ntawm UHF RFID daim ntawv loTxawm hais tias qee qhovUHF passive RFID cim npe Tom qab kev txhim kho thev naus laus zis muaj kev ua tau zoo heev hauv kev tiv thaiv kev cuam tshuam los ntawm cov hlau thiab kua, piv nrog cov ntawv lo siab, UHF tseem qis dua me ntsis, thiab lwm txoj hauv kev yuav tsum tau siv los ua kom nws.
9. Muaj peev xwm tiv thaiv kev tub sab: Kev siv ntawmTsev qiv ntawv RFID kev ruaj ntseg tiv thaiv kev tub sab nyiag daim ntawv loua ke nrog cov qhov rooj zoo li cov channel thiab cov kab ke tuaj yeem tiv thaiv cov phau ntawv thiab cov ntaub ntawv kom tsis txhob ploj thiab siv cov haujlwm ceeb toom tshem tawm tsis raug cai.Cov kev daws teeb meem HF thiab UHF RFID txhua tus muaj lawv qhov zoo thiab qhov tsis zoo, thiab qhov kev xaiv yuav tsum tau ntsuas thiab piv rau raws li qhov xav tau thiab tej yam mob tshwj xeeb.
