The working principle of the fingerprint lock of the safe

The security index of the safe is mainly determined by the lock function of the safe, through the changes of the times, technological changes, its lock function is also in line with the development of the times and constantly upgrade. From the initial mechanical lock safe development to the later password safe, and now the fingerprint safe, the lock function of the safe is also gradually strong. So do you understand the working principle of fingerprint safe locks?

Fingerprint refers to the end of the finger on the front of the skin uneven lines, although the fingerprint is only a small part of the human skin, it contains a large amount of information, these lines in the pattern, breakpoints, and intersections are different, in the information processing will be called “features”, medical has proved that these features for each finger are different, and these features have the uniqueness and permanence, so we will It is possible to match a person with his fingerprint and to verify his real identity by comparing his fingerprint features with the pre-saved fingerprint features. Automatic Fingerprint Identification System (AFIS) collects, analyzes, and compares live fingerprints through special photoelectric conversion equipment and computer image processing technology, and can automatically, quickly, and accurately identify individuals.

Generally, it can be divided into two parts: “offline part” and “online part”. The offline part includes the main steps of collecting fingerprints with a fingerprint collector, extracting the details, and saving the details into a database to form a fingerprint template library. The online part includes collecting fingerprints with a fingerprint scanner, extracting the detail points, and then matching these detail points with the template detail points saved in the database to determine whether the input detail points and the template detail points are from the same fingerprint. The fingerprint lock is a security product produced by the precise combination of electronic and mechanical components using the above principle.

Simply put, the working principle of fingerprint lock can be summarized as follows:
1, collection of samples – through the fingerprint reading head fingerprints will be photographed memory a storage template
2, identity verification – will receive the collected information for storage and comparison; the actuator receives the signal whether to open the door work.