Shin kun san tsarin aikin rfid reader?

Ƙididdigar mitar rediyo na RFID shine amfani da rediyo don watsa sigina, wanda zai iya gane rashin sanin bayanan tuntuɓar ({0}). Domin tsarin RFID yayi aiki akai-akai, yana buƙatar aƙalla sassa biyu: tag ɗin lantarki da mai karatu. Alamar lantarki ita ce mai ɗaukar bayanai na tsarin tantance mitar rediyo. Ya ƙunshi eriyar tag da alamar tambarin - takamaiman guntu. Mai karanta RFID shine babban na'urar don karanta bayanai.

Mai karanta RFID yana sadarwa ba tare da waya ba tare da alamar lantarki ta RFID ta eriyar (mai karatu), kuma yana iya karanta ko rubuta lambar tantance alamar da bayanan ƙwaƙwalwar ajiya. Mai karatu na yau da kullun ya haɗa da babban nau'in mitoci (mai watsawa da mai karɓa), rukunin sarrafawa, da eriya ga mai karatu.

RFID mai karatu aikin gudu

Wurin (ba- lamba) na haɗin siginar mitar rediyo yana samuwa ta hanyar haɗakarwa tsakanin alamar lantarki da mai karantawa. A cikin tashar haɗin gwiwa, ana samun isar da makamashi da musayar bayanai bisa ga dangantakar lokaci. Don ƙarin ayyukan aiki na tsarin RFID, da fatan za a duba labarin: Menene tafiyar aiki na tsarin RFID

Gudun aiki na mai karanta RFID yana aika umarni:

1. Shirin Layer na aikace-aikacen yana ba da umarni don kiran lambar ƙirar alamar alamar tag, kuma ƙirar ƙirar alamar alamar ta haifar da umarnin da za a aika don samun damar alamar, kuma ya aika da umarni zuwa tsarin sarrafa kayan aiki.

2. The baseband aiki module encodes da modulates lakabin ganewa Layer umarnin don samar da baseband siginar, wanda aka raba zuwa biyu tashoshi da kuma daukar kwayar cutar ta hanyar dubawa.

3. Ana tattara bayanan cikin siginar tushe na serial kuma an aika zuwa gaban RF{1}}ƙarshen module.

4. Serial baseband siginar yana shiga gaban RF na gaba{1}}ƙarshen module kuma an daidaita shi zuwa rukunin mitar UHF bayan jujjuyawar, ƙara ƙarfin ƙarfi, da sama{2}} juyawa, sannan a aika zuwa band{3}}pass filter don tacewa.

5. Bayan tacewa, ana aika siginar zuwa ma'aunin wutar lantarki don haɓakawa, sannan a aika zuwa eriya don watsawa.

 

Gudun aiki na mai karanta RFID don karɓar bayanan bayanan tag backscatter:

1. Alamar lantarki ta RFID tana karɓar siginar daga mai karatu, yana samun kuzari kuma ana kunna shi ta hanyar wuta{1}, yana fara aiwatar da umarnin mai karatu, kuma yana yin hukunci ko ana buƙatar amsa. Lokacin da ake buƙatar amsa, bayanan amsa suna wucewa ta eriya ta hanyar da aka watsar. aika zuwa RF gaban -ƙarshen module.

2. Tsarin gaba na RF{1}}ƙarshen yana aika siginar da aka karɓa zuwa band{2}}pass filter don tacewa. Bayan tacewa, ana mayar da siginar mai ɗaukar hoto zuwa siginar tushe kuma ana watsa shi ta hanyar ƙaramar ƙaramar ƙararrawa, ƙasa{5} juyawa, juyawa da sauran sassa.

3. Ana aika bayanan zuwa tsarin sarrafa kayan aiki a cikin PC ta hanyar dubawa.