Txoj Kev Txhim Kho ntawm Xov Tooj Cua Frequency Identification Technology

Xov tooj cua Frequency Identification (RFID), tseem hu ua Radio Frequency Identification (RFID) thev naus laus zis, yog ib hom kev txheeb xyuas tsis siv neeg uas siv xov tooj cua wireless rau kev sib txuas lus cov ntaub ntawv tsis sib cuag. Nws siv wireless xov tooj cua zaus nyeem thiab sau cov ntaub ntawv kaw tseg (cov ntawv cim hluav taws xob lossis RF phaib) kom ua tiav cov hom phiaj kev txheeb xyuas thiab cov ntaub ntawv sib pauv. Nws suav hais tias yog ib qho ntawm cov ntaub ntawv tseem ceeb tshaj plaws ntawm lub xyoo pua 21st.

 

Wireless xov tooj cua zaus identification technology ua tiav kev txheeb xyuas los ntawm kev sib txuas lus wireless nrog cov ntaub ntawv nkag tau siv thev naus laus zis los ntawm kev sib pauv cov ntaub ntawv ceev thiab khaws cia, thiab tom qab ntawd txuas mus rau lub database system kom ua tiav kev sib txuas lus tsis sib txuas. Nws pauv cov ntaub ntawv thiab txuas ib qho kev ua haujlwm nyuaj heev. Electromagnetic nthwv dej yog siv rau hauv kev paub txog kev nyeem, sau ntawv, thiab sib txuas lus nrog cov cim npe hluav taws xob. Nws raug cais raws li thaj tsam ze lossis thaj chaw deb raws li kev sib txuas lus nyob deb. Yog li ntawd, cov ntaub ntawv pauv txoj kev ntawm kev nyeem / sau cov khoom siv thiab cov cim hluav taws xob tau muab faib ua ob ntu: kev hloov pauv thiab rov qab hloov pauv.

 

RFID tsis tau nce hauv xyoo tas los no. Xyoo 1940, RFID twb tau pib txoj kev tshawb nrhiav thiab kev tsim kho, thiab txog niaj hnub no, RFID thev naus laus zis tseem niaj hnub txhim kho thiab nce qib. Cia peb saib cov txheej txheem txhim kho ntawm RFID.

1940-1950: Vim muaj kev txhim kho thiab kev nce qib ntawm radar thev naus laus zis, RFID thev naus laus zis tau muab los, thiab lub hauv paus theoretical ntawm RFID yug hauv xyoo 1948.

1950-1960: Tib neeg pib tshawb nrhiav RFID thev naus laus zis, tab sis tsis tau tawg tawm ntawm kev tshawb fawb hauv chav kuaj.

1960-1970: Cov kev xav cuam tshuam txuas ntxiv txhim kho thiab qhov system no tau pib siv rau hauv kev xyaum.

1970-1980: RFID thev naus laus zis tau hloov kho tas li, kev tshawb fawb cov khoom lag luam maj mam nce zuj zus, thiab kev sim RFID tau pib nrawm dua. Thiab pom tau hais tias daim ntawv thov ntawm lwm yam systems.

1980-1990: RFID thev naus laus zis thiab cov khoom lag luam cuam tshuam tau tsim thiab siv hauv kev ua lag luam, thiab cov ntawv thov hauv ntau qhov chaw tau tshwm sim.

1990-2000: Cov neeg tau pib ua tib zoo saib rau qhov teeb meem ntawm RFID tus qauv, thiab RFID systems tuaj yeem pom hauv ntau qhov chaw ntawm lub neej.

Tom qab xyoo 2000: Cov tib neeg feem ntau lees paub qhov tseem ceeb ntawm cov teeb meem kev teeb tsa, thiab cov khoom siv RFID tau ntxiv thiab tsim. Txawm hais tias nquag, passive lossis semi-active electronic tag pib tsim, cov nqi tsim khoom muaj feem cuam tshuam ntxiv, thiab daim ntawv thov teb maj mam nce.

Xyoo 2020, xov tooj cua zaus circuits yog kev sib koom ua ke siv dav hauv kev sib txuas lus wireless, xws li kev sib txuas lus satellite mus rau xov tooj ntawm tes, WiFi, thiab tsheb kauj vab sib koom. Xov tooj cua zaus circuits muaj nyob txhua qhov chaw. Kev tsim qauv yog lub hauv paus ntawm RF kev lag luam saw, thiab RF Electronic Design Automation (EDA) software yog tus tsim ntawm RF Circuit Court tsim thiab lub hauv paus tseem ceeb ntawm RF kev lag luam.

 

Txoj kev tshawb xav ntawm RFID tau ntxiv dag zog thiab tsim. Cov tib neeg tau tsim ib lub cim hluav taws xob ib leeg, nyeem ntawv ntau lub tshuab hluav taws xob, wireless nyeem tau thiab sau tau, thiab RFID thev naus laus zis uas hloov mus rau cov khoom siv nrawm nrawm txuas ntxiv txhim kho, thiab cov khoom muaj feem xyuam kuj tau nkag mus rau peb lub neej. , thiab pib siv dav.

 

Nrog rau kev tsim cov qauv, ntau yam ntawm daim ntawv thov kev lag luam, kev nce hauv cov ntawv thov, kev txhim kho txuas ntxiv ntawm kev siv thev naus laus zis, thiab kev vam meej ntawm kev siv tshuab (piv txwv li, hauv phau ntawv, tus cwj mem conductive yog siv los luam tawm xov tooj cua zaus. antennas ntawm lub hau npog lossis nplooj ntawv muaj cai). Tus nqi yuav qis dua; thib ob, qhov kev lees paub qhov deb yuav ntev dua, txawm tias passive xov tooj cua zaus txheeb xyuas cov cim tuaj yeem ncav cuag kaum metres; qhov loj me kuj yuav me dua.