Cov tuabneeg scanner raws li ib tug txhais tau tias ntawm cov neeg siv authentication

Rau hnub tim, lub computerization ntawm haiv neeg ua rau peb saib rau txoj kev sib txawv kom tsis txhob nkag mus rau cov ntaub ntawv khaws tseg rau hauv computer. Ntxiv mus, cov neeg siv kev tso cai thiab authentication system rau lo lus zais yog ib qho ntawm feem ntau, txawm tias nws muaj ntau lub drawbacks. Ib tug lwm txoj rau lo lus zais tiv thaiv yuav ua tau ib tug neeg authentication biometric tsis, xws li ib tug tuabneeg. Thiab nws yuav siv sij hawm xwb ib tug tuabneeg scanner thiab txuam software, uas los nrog tus ntaus ntawv.

Yuav ua li cas yog lub tuabneeg scanner

tuabneeg scanner yog ib tug ntaus ntawv uas nyeem cov tuabneeg duab nrog tag nrho nws cov nta nyob rau hauv daim ntawv ntawm ib tug tuabneeg, thiab transmits lub scan tshwm sim rau lub software. Tshwj Xeeb daim ntawv thov piv daim duab nrog rau ib tug qauv tsim nyob rau theem ntawm ib tug biometric lo lus zais.

Hom tuabneeg scanners

Tag nrho cov tuabneeg scanners, uas yog tam sim no siv, yuav tsum txwv kom muab zais rau hauv peb pawg neeg, raws li nyob rau hauv lub cev hauv paus ntsiab lus ntawm cov lag luam:

- semiconductor (silicon);

- Optical;

- ultrasound.

semiconductor scanners

Qhov no hom ntawm scanner lijchoj ib tug duab raws li semiconductor zog uas hloov nyob rau hauv kev sib cuag cheeb tsam ntawm tuabneeg dluab thiab ib tug scanner. Lub lag luam ntawm no hom ntawm PP pab kiag li lawm yuav pw ob peb technologies:

- Capacitive scanners. Lub lag luam ntawm xws scanners yog cov nyhuv tias lub peev xwm nyob rau hauv lub pn-txoj kev hloov semiconductor ntaus ntawv nws txawv li hu tuabneeg ridges thiab cov semiconductor ntsiab ntawm lub matrix.

- ib tug siab-sensitive scanners. Cov tuabneeg scanner ntawm no hom ua hauj lwm siv ib tug tshwj xeeb array ntawm piezoelectric ntsiab. Thaum tus ntiv tes yog nyob rau hauv kev sib cuag nrog lub matrix, lub ridges yuav muab siab rau nws, thiab kev nyuaj siab, ntsig txog, tsis muaj. Raws li lub siab sib sib zog tsa los ntawm lub matrix, thiab ib cov duab yog tsim.

- Thermo-scanners. PP pab kiag li lawm ntawm no hom yog siv sensors muaj pyroelectric ntsiab. Cov sensors sau cov kub sib txawv, tom qab uas nws yog hloov dua siab tshiab rau hauv ib tug voltage.

- RF scanners. Scanners ntawm no hom muaj mikroantenn uas muaj ib tug tsis muaj zog teeb liab, thiab nyob rau hauv cov lus teb rau tus tau txais kev nias tes tus nqi ntawm electro-vim li cas quab yuam generated kawg tuabneeg duab.

- Broaching thermo-scanners. Tib yam li cov thermo-scanners. Qhov txawv tsuas yog tias koj yuav tsum tuav koj ntiv tes rau ntawm lub PP nto, thiab tsis txhob thov nws.

- Capacitive sheetfed scanner. Lub tshuab rau cov tuabneeg duab yog tib yam li nyob rau hauv lub capacitance, tab sis txoj kev ntawm kev npaj yog yus nyob rau hauv uas tus ntiv tes yog nqa nyob rau hauv cov PP nto.

- RF sheetfed scanner. Lub hauv paus ntsiab lus ntawm cov lag luam ntawm cov pab kiag li lawm yog tib yam li nyob rau hauv lub xov tooj cua-zaus pab kiag li lawm, tab sis cov qauv ntawm cov kev tshem tawm cov duab no tsis yog lub tuabneeg daim ntawv thov mus rau lub ntaus ntawv, thiab nyob rau hauv tuav koj cov ntiv tes hla nws saum npoo.

kho qhov muag scanners

Cov tuabneeg scanner ntawm no hom lijchoj ntiv tes duab los ntawm ib tug kho qhov muag txoj kev. Lub lag luam ntawm pab kiag li lawm ntawm no hom ntau ntau yam technologies

- FTIR-scanners. Cov pab kiag li lawm siv hauv thiaj nyhuv yog zoo.

- Fiber-optic scanners. Cov tuabneeg sensor yog ib tug matrix kho qhov muag fiber, nyob rau txhua fiber comprises ib photocell.

- Electro-kho qhov muag scanners. Kev npaj duab los ntawm lub electrooptic polymer uas sib txuas ntxiv ib lub teeb-emitting txheej.

- Optical sheetfed scanner. Qhov no hom ntawm cov khoom yog ib tug paub kev cai fiber pab kiag li lawm nyob rau hauv uas lub qauv yog tsim nyog los nqa tawm koj cov ntiv tes hla tus nto thiab tsis thov nws.

- kev uas quav scanners. Yog xav tau ib daim duab koj yuav tau tuav koj tus ntiv tes nyob rau hauv rau cov menyuam, qhov chaw uas puas tus ntiv tes dluab nrog papillary qauv.

- Tsis-hu scanners. ntiv tes scan yog nqa tawm nyob rau hauv ib tug contactless yam. Cov ntiv tes yog thov mus rau lub qhov uas nws yog illuminated los ntawm ntau qhov chaw, thiab ua-nyob rau hauv lub koob yees duab captures cov duab ntawm ib tug ntiv tes.

ultrasound scanners

Qhov no hom ntawm ntaus ntawv scans qhov chaw ntawm lub ultrasonic tsis nyob rau hauv cov ntiv tes, thiab raws li lub measured deb ntawm lub thaws rov los tsis los ntawm lub depressions thiab cov projections yog tsim duab. Qhov no hom ntawm ntaus ntawv txawv los ntawm lub saum toj no nais maum kuaj uas PP tshwm sim yog zoo zoo.