Fingerprint recognition, seimwe yeakawanda biometric identification tekinoroji, inonyanya kushandisa misiyano yeganda rezvigunwe zvevanhu, ndiko kuti, mitsetse uye mipata yemaitiro.Sezvo patani yezvigunwe zvemunhu wega wega, nzvimbo dzekutsemuka uye mharadzano dzakasiyana, uye dzinoramba dzisina kuchinjika muhupenyu hwese, saka kucherechedzwa kwezvigunwe kwave kunyanya kushandiswa uye kwakakura zvakanyanya tekinoroji pakati pehunyanzvi hwebiometric.Parizvino, kucherechedzwa kwezvigunwe kwave kuchishandiswa zvakanyanya mukuferefeta mhosva, kurwisa hugandanga, kuchengetedzwa kwenyika, anti-narcotics, kuchengetedzeka kweveruzhinji, nezvimwe uye zvakare kushandiswa zvakanyanya munharembozha, makomputa, maATM, kutonga kwekupinda uye wachi-mukati masisitimu mazuva ese. hupenyu.
Nheyo yekushanda yekuzivikanwa kweminwe inonyanya kusanganisira mabasa matatu: kuverenga kwemifananidzo yeminwe, kuburitsa maficha, uye kuenzanisa zvigunwe.Yakajairika mafingerprint ekuzivikanwa matekinoroji ndeaya: optical, capacitive, uye ultrasonic.
Kuzivikanwa kwezvigunwe zveOptical
Optical fingerprint recognition inyanzvi yekuziva zvigunwe zvine nhoroondo refu.Inoshandisa misimboti yechiedza refraction uye kufungisisa kuona mafingerprints.Iko kona yerefraction yechiedza chakabudiswa pamitsetse isina kuenzana pamusoro pechigunwe uye kupenya kwechiedza chakaratidzwa kuchave kwakasiyana, nokudaro kuunganidza kupenya kwakasiyana uye rima chiyero cheruzivo rwemufananidzo kuti upedze kuunganidza zvigunwe.
Optical zvigunwe zvekuverenga zvigunwe zvine zvakakwirira zvinodikanwa kune mwenje sosi uye kubata pakati pechigunwe uye sensor, uye inoda yakanaka yeminwe yekubata uye kurongeka.Naizvozvo, optical zvigunwe zvigunwe modules zvinowanzotora nzvimbo yakakura uye zvine zvimwe zvinodikanwa zvekushisa uye hunyoro, uye Kuzivikanwa kwayo kwechokwadi hakuna kunyatso kunaka.Chakanakira tekinoroji iyi nderekuti mutengo wakaderera uye wakakodzera kune zvakajairwa zvigunwe zvekucherechedzwa zvigunwe, senge zvigunwe zvekupinda muchina.
Capacitive kucherechedzwa kweminwe
Capacitive kucherechedzwa kwezvigunwe zvakanyanya kuomarara pane kuziva zvigunwe zvekuona.Nheyo yayo ndeyekubatanidza kumanikidza kunzwa, capacitive sensing, kupisa kwekunzwa uye mamwe ma sensors mu chip.Kana chigunwe chikadzvanya pamusoro pe chip, iyo yemukati capacitive sensor inogadzira chigunwe chifananidzo chakavakirwa pamusiyano wechaji (kana tembiricha musiyano) inogadzirwa nefingerprint crest uye dhiri, izvo zvinoda kubata kwakanaka pakati pechigunwe uye sensor.
Kubatsira kwekushandisa capacitive kucherechedzwa kweminwe ndeyekuti chimiro chemufananidzo chakakwira, kukanganisa kudiki, uye chiratidzo chemagetsi chichapfuura nepakati peganda rakafa pamusoro pemunwe, saka kucherechedzwa kwemuviri mhenyu kunogona kuitwa, izvo zvinovandudza zvakanyanya kuchengetedzwa kwekuzivikanwa kweminwe.Nekudaro, capacitive kucherechedzwa kwezvigunwe zvemunwe zvakare kune zvikanganiso zvayo.High-chaiyo zvigunwe mifananidzo inoda yakakwirira-density capacitive particles, izvo zvichawedzera zvakanyanya mutengo.Uye nekuda kwekuti capacitive fingerprint recognition inotsamira pamipata nemipata yemunwe, kana pamusoro pemunwe wakasvibiswa netsvina kana dikita, inoshandura ruzivo rwemavara pamusoro pechigunwe, zvichitungamira mukuzivikanwa kusiri iko.
Ultrasonic zvigunwe kuzivikanwa
Ultrasonic kuzivikanwa zvigunwe zvigunwe tekinoroji itsva inoshandisa masaisai eruzha kuwana ruzivo rwezvigunwe.Iyo sensor inoburitsa ma ultrasonic pulses, ayo akapararira uye anoratidzwa kana asangana nemafingerprint mapatani.Iyo sensor inogamuchira inoratidzira ultrasonic chiratidzo uye inobvisa zvigunwe zvigunwe nekuongorora shanduko muchiratidzo.Ultrasonic zvigunwe zvekuverenga zvigunwe zvine zvakaderera zvinodiwa zvekusangana pakati pechigunwe uye sensor, saka vanogona kushanda kana paine chinhambwe kubva pachigunwe chemunwe.Kubatsira kweiyi tekinoroji ndeyekupokana kwayo kukuru kune tsvina nekukwenya.Iyo inzira inovimbisa yekuzivisa zvigunwe.Nekudaro, kuzivikanwa kwe ultrasonic zvigunwe zvemunwe hakusi pasina zvikanganiso zvayo.Mutengo wekuzivikanwa kwe ultrasonic zvigunwe zvigunwe wakakwira, uye hausi kupindura sekuona uye capacitive zvigunwe zvekuzivikanwa.Izvo zvakare hazvienderane nemafirimu ekudzivirira ezvimwe zvinhu, izvo zvinomisa ultrasonic zvigunwe kuzivikanwa.kururama.
Kutorwa pamwechete, optical, capacitive, uye ultrasonic zvigunwe zvekuzivikanwa vane zvavo zvakanakira nezvayakaipira.Capacitive kucherechedzwa kwezvigunwe pari zvino ndiyo inonyanya kushandiswa, asi ultrasonic zvigunwe zvekuzivikanwa kune yakanyanya kuchengetedza chinhu.Kunyangwe kucherechedzwa kwezvigunwe zveoptical ndiyo yakaderera mumutengo, ine kusachengeteka kwakashata uye kuita kwekuzivikanwa.
Shenzhen Handheld-Wireless Technology Co, Ltd inopa zvibatiso zvemaoko uye mahwendefa parizvino anotsigira capacitive zvigunwe zvemunwe, zvine simba rekushandisa kwezvakatipoteredza uye yakakwira anti-yekunyepedzera.Ivo vanogona kushandiswa zvakanyanya mukuchengetedza veruzhinji, kuchengetedzwa kweruzhinji manejimendi, chengetedzo, yekuwana kutonga manejimendi, nezvimwe.
Nguva yekutumira: Sep-18-2023