Sibutsetelo Izingxenye eziyisisekelo zehardware of Fingerprint Scanner

Uhlelo lwe-Fingerprint Scanner luqukethe ukuqapha okukhaliphile kanye nesithwebuli seminwe. Bobabili bafakwa ezindaweni ezahlukene. Ukuqapha okuqondayo kunikeza amandla okudingeka isithwebuli somunwe futhi kuthola imininingwane ye-alamu nemininingwane yesimo ethunyelwe yiyo. Ubuchwepheshe obuningi obukhulu obuningi busetshenziswa lapha ukwaba ikhebula elinama-cores amabili ukuze kunikezwe amandla nokuhanjiswa kolwazi, okuthuthukisa ukuthembeka nokuphepha kohlelo.

1. Isisekelo esiyisisekelo somqaphi ohlakaniphile

Ukuqapha okuqondayo kuqukethe i-microcomputer ye-chip eyodwa, iwashi, ikhibhodi, isibonisi se-LCD, inkumbulo, i-demomulator, ukuguqulwa okuningana, i-buzzer namanye amayunithi. Igcwalisa ikakhulukazi imisebenzi yokuxhumana nesithwebuli somunwe, ukuhlaziya okukhaliphile kanye nokuhlola ukuphepha komugqa wokuxhumana.

I-Intelligent Monitor ihlala isesimweni sokwamukela futhi ithola imininingwane ye-alamu kanye nemininingwane yesimo ethunyelwe isithwebuli somunwe ngefomethi engaguquki. Ngolwazi lwe-alamu, isibonisi se-LCD kanye ne-buzzer ngokushesha sizothumela i-alamu ezwakalayo nebonakalayo; Ngemininingwane yesimo, izogcinwa kwimemori futhi iqhathaniswa nesimo somlando wesithwebuli seminwe ngaphambi kwalomzuzu ukuthola indlela yokushintsha, ukubikezela ukuguqulwa kwesimo esizayo, futhi unikeze imininingwane ehambisanayo kubasebenzi abasebenza kakhulu ku- Isibonisi se-LCD sokwenza izinqumo. Ngenkathi ukuhlakanipha okuqondayo kusungula ukukhulumisana ngesithwebuli somunwe, kuqapha izinguquko ekunikezelweni kwamandla okugeleza komugqa wokuxhumana ngesikhathi sangempela nge-A / D ukuvikela ukugeleza okubushelelezi. umugqa.

2. Isisekelo esiyisisekelo sesithwebuli somunwe

I-Fingerprint Scanner nayo isuselwe ku-51 series diple-chip micrococuter (AT89051), ifakwe imisebenzi yokuhlelwa kwe-Hardware, ukuqedela i-electromagnetic actuator kanye nokuthola i-actuator yayo yokushayela, ukuthola Isiginali ye-alamu ethunyelwe inzwa, futhi ithumele idatha.

I-microcomputer ye-pup-chip ithola ikhodi ethayishiwe futhi uyiqhathanise nephasiwedi egcinwe ku-EEPROM. Uma iphasiwedi ilungile, i-electromagnetic actuator iqhutshwa ukuvula; Uma iphasiwedi ingalungile, opharetha uvunyelwe ukufaka kabusha iphasiwedi kuze kube kathathu; Uma zonke izikhathi ezintathu zingalungile, i-microcomputer ye-single-chip izolakwa ukuqapha okuqondayo ngomugqa wokuxhumana. The single-chip microcomputer sends each unlocking operation and the driving current value of the electromagnetic actuator at this time as status information to the intelligent monitor, and also sends the alarm information received from the sensor interface to the intelligent monitor as the basis for intelligent analysis .