Umgomo we-Fingerprint Recench Time Attendance Technology

Kunezici eziningi ezihlukile zebhayoloji zomuntu, kufaka phakathi izigxivizo zeminwe, ama-irises, ama-Palm Prints, njll ngenxa yokwahlukana kwazo kanye nokwenza izinto, amafoni ahlakaniphile kanye neminye imikhakha, kancane kancane anwebekile ekufuthweni Izimboni ezinjengokhiye we-Smart Door Locks.

Enye yezinkomba ezibaluleke kakhulu ze-Fingerprint Recortipprition and Atterance Technology inani lokunemba, kanye nokwenza ngcono ukunemba kokuqashelwa kweminwe nokubakhona ukuthi kungenzeka yini ukuqoqa izithombe zeminwe ngokunembe kakhudlwana nangempumelelo (Yebo, kungaba njalo ngcono nge-algorithms yakamuva, kepha umphumela wokuthuthuka ulinganiselwe). Njengamanje, kunezindlela ezintathu eziyinhloko zobuchwepheshe bokuqoqwa kweminwe yokuqoqwa kweminwe
1. I-Optical Fingerprint Scanner
I-Optical Fingerprint Scanner uhlobo lobuchwepheshe besikhathi sokubona abakhona seminwe owawusetshenziswa kuqala. Isibonelo, imishini eminingi yokubakhona isikhathi nokulawula ukufinyelela kusetshenziselwe ubuchwepheshe bokubona abakhona be-Optical Fingerprition. Isebenzisa kakhulu umgomo wokubhekisisa nokuboniswa kokukhanya, ibeka umunwe kumalensi abonakalayo, futhi umunwe ukhanyiswe ngumthombo wokukhanya owakhelwe ngaphakathi. Ukukhanya kuphuma kusuka phansi kuya ku-prism, bese kuphuma nge-prism. Ukukhanya okukhishwe kungaphezulu komunwe. I-angle yokuphikisa nokukhanya kokukhanya okubonisiwe kuzohluka. Sebenzisa i-prism ukuyicubungula kuma-CMO noma i-CCD kwidivaysi ehlanganisiwe, bese wenza idijithali yama-ridges (imigqa enobubanzi obuthile nesiqondiso esithombeni somunwe) ngombala omnyama kanye nezigodi (ukucindezelwa phakathi kwe imigqa) emhlophe isithombe esimhlophe esineminwe esiningi esingacutshungulwa yi-algorithm yedivayisi yeminwe. Bese uqhathanisa i-database ukubona ukuthi ingaguquguquki yini.
Ukungathandeki kwezikena zeminwe ye-Optical ukuthi lolu hlobo lwemodyuli yeminwe lunezidingo ezithile kumazinga okushisa kanye nomswakama wemvelo yokusebenzisa, futhi hhayi kuphela lapho ingaphezulu umunwe uhlanzekile. Uma kunothuli oluningi noma iminwe emanzi eminweni yomsebenzisi, kungenzeka amaphutha wokubona. Futhi kulula ukukhohliswa ngeminwe yeminwe. Kwabasebenzisi, akuphephile kakhulu futhi uzinzile ongalusebenzisa.
2. Isithwebuli somunwe se-capacitive
Ababekhona abakhona be-Fingerprint Fingerpritive ukusebenzisa i-silicon wafer kanye ne-electrolyte evumayo yokuqalisa ukwakha insimu kagesi. Ukushintshashintsha kwe-Fingerprint kuzodala izinguquko ezihlukile emehluko wokucindezela phakathi kwalezi ezimbili, ukuze ukuzimisela kweminwe okunembile kungafezeka. Le ndlela inokuvumelana okuqinile futhi ayinazidingo ezikhethekile zendawo yokusebenzisa. Ngasikhathi sinye, isikhala esihlalwa yi-Silicon Wafers kanye nezinto zokuzwa ezihlobene ziphakathi kohlu olumukelekile lwedizayini yefoni ephathekayo, ngakho-ke lobu buchwepheshe buthuthukiswe kangcono ohlangothini lwefoni ephathekayo. .
Imodyuli yeminwe yeminwe yamanje ye-capacive nayo ihlukaniswe ngezinhlobo ezimbili: Uhlobo lweScratch kanye nohlobo lokucindezela. Yize okwedlule kuthatha ivolumu encane, inenkinga enkulu ngokwesilinganiso sokuqashelwa kanye lula. Lokhu futhi ngokuqondile abakhiqizi abahole ukugxila kuhlobo lwe-push-hlobo (capacitive) iminwe yokulinganisa ngokusebenza okuvamile okuvamile nokuqashelwa okuphezulu.
3. Khomba ukukhonjwa imvamisa yomsakazo
Inzwa yemvamisa yomsakazo ikhipha inani elincane lesiginali yemvamisa yomsakazo nge-sensor, engangena egcekeni lesikhumba somunwe ukuze ithole ungqimba lwangaphakathi lokuthungwa ukuze uthole imininingwane. Isibonelo, ubuchwepheshe bokuqashelwa kweminwe ye-Ultrasonic Fingerprition yesikhathi sokuthola usizo ekhishwe yi-Qualcomm eMwc Exhibition ngo-2015 uhlobo lobuchwepheshe bokuhlonza imvamisa yomsakazo we-biometric radio frequency
Uma kuqhathaniswa nobuchwepheshe obubili bokuqala, inzwa ye-RF idinga inhlanzeko emincane yomunwe futhi ingakhiqiza izithombe ezisezingeni eliphakeme. Ngaphezu kwalokho, ngenxa yekhono lokuthwebula izithombe ezisezingeni eliphakeme, indawo ye-sensor ingancishiswa ngenkathi kuqinisekisa ukuthembeka kobuqiniso, kanye nokunciphisa izindleko ezithile, nokwenza izinzwa zomsakazo zisebenze kumadivayisi ahlukahlukene weselula. Kodwa-ke, ngenxa yesidingo sokudlulisela amasiginali ngenkuthalo, ukusetshenziswa kwamandla kuphakeme kunaleso sohlobo lwe-capacitive. Ngaphezu kwalokho, kukhona abakhiqizi abambalwa abasebenzisa lolu hlobo lobuchwepheshe njengamanje, ngakho-ke izindleko zizonke zisephezulu.