kaise kaam karta he Fingerprint scanner

dosto ajkal apne dekha hoga ki har kisi ke phone me ya kisi office me fingerprint scanner ka use kia jata he. akhir kya hota he fingerprint scanner or yah kaam kaise karte he isi ke baare me mene is post me detail me bataye he. sabse pahle baat aati he fingerprint scanner kya hota he -



* Fingerprint scanner
* Types of fingerprint scanner
* working of fingerprint scanner
* conclusion


 

Fingerprint scanner - ager simple word me kahen to fingerprint scanner ek eisa system he jo finger ko scan karta he. jaise hi kisi ke finger ko fingerprint scanner par rakha jata he to finger print scanner finger ko scan karke code me change kar deta he or system me ye code save ho jata he , or jab kabhi bhi koi user finger print scanner ka use karta he to ye system usko detect kar leta he.
   agar security ke lie dekha jay to sabse best system fingerprint scanner hi hoga, kyonki finger print scanner me advance level security hoti he.

Normally dekha jay to  scanner do type ke hote he

1. Optical scanner
2. capacitive scanner

working


1. Optical scanner - Optical scanner me fingerprint ke uper se ek bright color dala jata he , taaki jo bhi finger print ho use capture kiya ja sake. iske bad jo picture capture hoti he use verification ke lie computer me feed kia jata he. Jaise photo copy wali machine ke scanner me ccd (charge couple device) hota he vese hi is scanner me ek microchip ya image senser  hota  he. iska use finger print ko  digitel picture me change karne ke lie kiya jata he, ye image finger print ko code me change karta he.


optical fingerprint scanner
viralindiahelp.blogspot.com

2. Capecitive scanner- Capacitive scanner me me finger ko electrically way me scan kiya jata he , kionki hamare haath ki har ungli ke beech me doory hoti he. capacitive scanner en duriyoe ko calculate karke fingerprint ki image banata he. capacitive scanner iphone or ipad ke touchscreen ki tarah hi hota he.

 Capacitive fingerprint scanner
viralindiahelp.blogspot.com
Image result for ccd
ccd 
    Sabse pahle scanner device me jhan user ungli rakhta he , vhan ek tej light jal jati he. Glass ke jariye ye light user ki ungli ko touch karke vapas CCD(charge couple device) image senser par reflect ho jati he. ydi image capture me jyada samay lagta he , to image senser par image jyada bright hogi. iske lie ccd me algorithm ka use kliya jata he algorithm me user ko jakary hoti he ki image halki he ya gahri .
    Is prakar ke test se scanner batata he ki image sahi he ya nahi. ab jo bhi image capture ki gai hoti he vah memory me save ho jati he. isi tarah agli bar jab fingerprint scanner ka use hota he to scanner detect kar leta he ki user sahi he ya nahi.
  
    Isme computer code hi fingerprint scanner me alag alag user ko compare karta he.
finally apne aj sikha ki finger print scanner kya hota he ye kitne type ke hote he or ye kaam kaise karte he, dosto agar apko ye post kaisi lagi hame comment karke jarur bateyen.




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