A biometric fingerprint door lockworks by scanning and generating numerical templates from fingerprint data to verify the user. In replacing a standard key, biometric door locks open the door using personally identifiable information.
How Does A Biometric Fingerprint Door Lock Work?
As you know, human fingerprints are unique and inimitable for each individual, just like our DNA. Biometric locks are constructed based on our unique and personal fingerprints to separate and recognize several users. These locks operate through scanning that converts your fingerprint data into numeric templates.
Other than that, every fingerprint scanner scans differently. For instance, if your biometric fingerprint door lock comprises “optical scanners,” they would capture your fingerprint photos and later on store them for matching purposes. However, anyone can trick these kinds of scanners by showing them the picture of fingerprints.
The second type we have is the “capacitor scanner.” They create an electric mold of your fingerprint, and of course, you can fool it by presenting the exact match of fingerprint mold. The third and the last type is “ultrasound,” and the hardest to be tricked. Moreover, it draws on high-frequency sound waves to penetrate the upper layer of your finger-skin and reads it on the inner.
However, if a match is found, the access is granted, and if not, the door remains locked, or sometimes it rings the alarm to alert the security that someone is trying to break in.
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