Video: Dab tsi yog qhov ntau ntawm RFID tag?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Txawm nyob rau hauv ib hom RFID Txawm li cas los xij, muaj peev xwm nyeem tau ntau yam thaj tsam . Ib tug passiveultrahigh-frequency (UHF) handheld nyeem ntawv muaj ib tug ntau ntawm txog 10 ko taw, thaum tus qauv siv lub beam-steerable phased-arrayantenna tuaj yeem nug passive tag ntawm qhov deb ntawm 600feet lossis ntau dua.
Ua raws li qhov no hauv kev txiav txim siab, dab tsi yog qhov ntau ntawm passive RFID cim npe?
Feem ntau, passive Tsawg zaus (LF) thiab siab zaus (HF) tag muaj nyeem ntau txog li 3 feet, thaum ib qho yooj yim passive ultrahigh-frequency (UHF) transponder tuaj yeem nyeem tau los ntawm 15 txog 20 ko taw hauv huab cua dawb (uas yog, nrog rau tag tsis nyob ntawm ib qho khoom).
Tsis tas li ntawd, RFID cov cim npe yog dab tsi? Muaj ob lub ntsiab lus sib txawv ntawm " raug " nyob rau hauv cov ntsiab lus ntawm RFID taug qab. Yog koj siv active tag , nyeem qhov tseeb feem ntau yog 100 feem pua, txij li cov tag tshaj tawm lawv cov ntaub ntawv zoo li lub xov tooj ntawm tes. Passive tag muaj kev cuam tshuam, thiab yog tias lub teeb liab raug thaiv los ntawm hlau, lub tag tsis tuaj yeem nug.
Tsis tas li ntawd, puas yog RFID cim npe kim?
RFIDtags ua tau nqi tsawg li 10 xees los yog li ntau li $50 nyob ntawm hom tag , daim ntawv thov thiab qhov ntim ntawm qhov kev txiav txim. Feem ntau hais lus, tiav ntse daim ntawv lo uas tuaj yeem siv rau rooj plaub thiab pallets feem ntau nqi 15 xees lossis ntau dua, nyob ntawm qhov ntim.
Cov ntaub ntawv tus nqi rau HF tag yog dab tsi?
Cov HF band ranges ntawm 3 mus rau 30 MHz. Feem ntau HF RFID systems ua haujlwm ntawm 13.56 MHz nrog nyeem ntau ntawm 10 cm thiab 1 m. HF systems muaj kev cuam tshuam rau kev cuam tshuam. HF RFID feem ntau yog siv forticketing, them nyiaj, thiab hloov ntaub ntawv daim ntawv thov.
Pom zoo:
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