Security is what everyone wants. People want to protect the things and people they love most. You still have your basic keypad, combination lock, and lock-and-key methods that are still used today. With technological advancement, security doesn't have to be outdated. Now you have different locks such as fingerprint door locks, biometric padlocks, and digital cabinet locks. Most of these locks rely on Bluetooth technology and can even be controlled by your smartphone. So, when you saw James Bond use his handprint to unlock a door, that wasn't just Hollywood trickery; this was a foreshadow into what security technology would evolve to in the future. But what exactly is a fingerprint door lock, and how does it work?

What is a Fingerprint Door Lock?

The name is self-explanatory, but the technical definition is a system which grants a person authorized access by their fingerprint. You've probably looked at your hands many times and noticed the ridges and valley patterns. Our print was designed to help us grasp objects, so they don't slip out our hands. But an unforeseen effect resulted from our fingerprints; it's now used as a security measure. Gone are the days when you couldn't remember where you put your key, your combination number; your fingerprint is the key!

Your fingerprint is the most secure key you have because each fingerprint is unique, and a security lock will only read your print. There's a debate about this new form of security. Most people like it, while others argue that it's still possible to duplicate someone's print. Unless you're Ethan Hunt or Jason Bourne, it will take a lot of time and effort to pull this off, so don't believe what you see in movies.

How Do Fingerprint Door Locks Work?

Fingerprint locks convert your fingerprint into a numerical model. Upon placing your finger on the scanner for this first time, the conversion begins, and your fingerprint model is saved. This method is then perennial on every occasion you wish to grant somebody access. Every time somebody places his/her finger on the device, it matches the information the scanner captured through the finger. If your fingerprint match is found, access is granted, and therefore the door opens. On the other hand, if its somebody else attempting to use your fingerprint, access isn't allowed, and consequently, the door remains locked.

Now, matching the algorithmic rule is the most critical method here; this is often sometimes achieved by the item matching method called minutia. In this, many points area is situated on your finger’s pads, together with their position and direction once you register for the first time. This data is held in memory. During the matching process, the already stored fingerprint pattern is compared to the received input. If there's a match, a green light signal it and the door is opened. The method is incredibly fast and is completed in an exceedingly fraction of a second. Just in case you're curious, two instances of friction ridge skin impressions along represent a minutia.