Iyo RFID inoshanda sei
RFID masisitimu muenzaniso wakanaka wekuti matekinoroji matsva anogona kuchinja sei chimiro chemusika, kugadzira zvigadzirwa zvitsva uye kunyatsogadzirisa akati wandei matambudziko aimbochengeta vanhu vazhinji husiku. Kuzivikanwa kweredhiyo frequency, kureva, nzira dzekuziva zvinhu uchishandisa masaisai eredhiyo, yakashandura zvinhu zvemazuva ano, anti-kuba masisitimu, kutonga kwekuwana uye accounting yebasa, zvifambiso zveveruzhinji uye kunyange maraibhurari.
Maredhiyo ekutanga ekuzivikanwa masisitimu akagadziridzwa chinangwa cheBritish ndege uye akaita kuti zvikwanise kusiyanisa ndege dzevavengi kubva kune dzakabatana. Iyo yekutengeserana vhezheni yeRFID masisitimu mhedzisiro yemabasa mazhinji ekutsvagisa uye mapurojekiti esainzi akaitwa mukati memakore gumi e70s. Zvakaitwa nemakambani akaita saRaytheon naFairchild. Midziyo yekutanga yevagari vemo yakavakirwa paRFID - makiyi egonhi, akavhurwa nekiyi redhiyo yakakosha, akaonekwa makore makumi matatu apfuura.
kushanda musimboti
A basic RFID system ine maviri emagetsi maseketi: muverengi ane yakakwira frequency (RF) jenareta, resonant reketi ine coil iri zvakare antenna, uye voltmeter inoratidza voltage muresonant circuit (detector). Chikamu chechipiri chegadziriro ndiyo transponder, inozivikanwawo seti tag kana tag (Mufananidzo 1). Iyo ine resonant yedunhu yakarongedzwa kune frequency yeRF chiratidzo. muverengi uye microprocessor, iyo inovhara (inodzima) kana kuzarura resonant circuit nerubatsiro rwekuchinja K.
Muverengi uye transponder antenna anoiswa chinhambwe kubva kune mumwe nemumwe, asi kuti maviri coil abatanidzwe zvine magineti kune mumwe nemumwe, nemamwe mazwi, iyo munda wakagadzirwa nemuverengi coil inosvika uye inopinda mukati meiyo transponder coil.
Iyo magnetic field inogadzirwa neantenna yemuverengi inokwevera yakakwira frequency voltage. mune yakawanda-inotenderera coil iri mu transponder. Inodyisa iyo microprocessor, iyo, mushure menguva pfupi, inofanirwa kuunganidza chikamu chesimba rinodiwa kubasa, rinotanga kutumira ruzivo. Mukutenderera kwemabhiti akatevedzana, resonant redunhu retag rakavharwa kana kusavharwa nekuchinja K, izvo zvinotungamira kuwedzera kwechinguva mukuderedzwa kwechiratidzo chinoburitswa nemuverengi antenna. Shanduko idzi dzinoonekwa ne detector system yakaiswa muverengi, uye mhedzisiro yedhijitari data stream ine huwandu hwemakumi akati wandei kusvika kumazana akati wandei mabits inoverengwa nekombuta. Mune mamwe mazwi, kuendesa data kubva kune tag kuenda kumuverengi kunoitwa nekugadzirisa iyo munda amplitude yakagadzirwa nemuverengi nekuda kwekukura kwayo kana kushoma attenuation, uye munda amplitude modulation rhythm inosanganiswa nekodhi yedhijitari yakachengetwa mundangariro yetransponder. Pamusoro peiyo yakasarudzika uye yakasarudzika kodhi yekuzvizivisa pachayo, mabheti akawandisa anowedzerwa kune inogadzirwa pulse chitima kubvumira kutapurirana zvikanganiso kurambwa kana kurasika mabhiti kuti adzorerwe, nekudaro kuve nechokwadi chekuverengeka.
Kuverenga kunokurumidza, kunotora anosvika mamilliseconds akati wandei, uye huwandu hwakanyanya hweiyo RFID system ndeye kana maviri muverengi antenna madhayamita.
Iwe uchawana kuenderera kwechinyorwa ichi muchinyorwa chaDecember chemagazini yacho
Kushandisa tekinoroji yeRFID
