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Fortifying Your House With High-Tech Security

Publisher: Management   Release time:2017-12-05

Most of us can probably relate to the inconvenience of accidentally leaving house keys somewhere, walking out of the house without remembering to take them in the first place, or simply having to fiddle with them while carrying bags of groceries on the way into the house. Any one of these situations compromises one's sense of ease and security. It is a stretch to claim that any single type of security is completely foolproof, as each option carries with it its own set of advantages and concerns. However, biometric recognition is one of the most technologically-advanced options to keep in mind when considering the safety of your home, family, and possessions.

 

While a mechanical lock involves the use of a metal key and an internal locking mechanism of tumblers, the biometric lock is a battery-powered security option that grants access by way of scanning, identifying, analyzing, and remembering a person's unique body traits, namely a fingerprint. The fingerprint is the primary form of identification that the lock uses to distinguish it from other, unauthorized fingerprints. When it is first scanned by the lock, it is converted into a numerical algorithm and saved to the device's internal database. When an user attempts to unlock the door, their fingerprint is scanned and compared with the data already stored within the biometric system. A match results in successful entry, while a non-match denies access entirely.

 

Biometric locks use many of the same types of scanning technologies as mobile devices, including: optical, capacitive, and ultrasonic. Incorporating an array of LEDs to capture a photo of a fingerprint, the optical scanner uses algorithms combined with areas of light and dark on a captured image to recognize surface patterns in the skin. The higher the resolution of an optical scanner, the greater its level of analysis.

 

The capacitive scanner also generates an image of a finger's ridges, but does so using an electric current composed of capacitor circuits that create an electronic mold of a fingerprint instead. This provides the scanner with more details about the nuances of the fingerprint for comparison, making it a more sophisticated option than its optical counterpart.

 

The ultrasonic scanner delivers the highest level of security possible through the use of its transmitter, receiver, and high-frequency sound waves. This scanner generates and transmits an ultrasonic pulse against a finger in order to penetrate the outer layers of the skin. A portion of this pulse is absorbed by the skin, while the rest of it bounces back to an internal sensor. The sensor calculates the intensity of this returning ultrasonic pulse at different points along the scanner. The longer the scanner spends capturing this data, the greater the range of depth that is analyzed, resulting in a highly-detailed, three-dimensional reproduction of a person's fingerprint for identification.

 

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