In a variety of security locks of intelligent locks, the fingerprint with higher safety factor is unlocked. When the fingerprint is unlocked, just put your finger gently in the acquisition window, the system will automatically identify the right back door automatically opened, very convenient, then what is the working principle of the fingerprint technology in the intelligent lock?

The principle is that fingerprints are created by the uneven surface of the skin on the face of the end of the finger. Although fingerprints are only part of the skin of the human body, they are different at points of bifurcation, turning and breaking. They are called "feature points" in information processing, and have been proven to be characteristic points of each person's finger in medicine. They are different, and these characteristics are unique and lasting. So we can correspond a person with his fingerprint, by comparing the fingerprint features and pre-preserved fingerprint features, we can verify their true identity. Therefore, the above characteristics of fingerprints become an important evidence of identification and are widely used in many security areas.

Fingerprint identification sensitivity is one of the important indicators of product performance and user experience, but in real life, fingerprint identification is always vulnerable to external factors. For example, finger moisture or fingerprint window humidity can lead to fingerprint identification failure, what is the reason for not normal recognition, fingerprint is the face of the finger skin on a regular arrangement and not the same lines. The breakpoint, turning point or bifurcation point in fingerprint is the minutiae feature point, and these special minutiae feature points provide the characteristic of fingerprint uniqueness. The fingerprint recognition sensor is to record the direction of fingerprint lines, and digitize them, forming a unique key to unlock.

To identify fingerprints, you must first set up a fingerprint database, install a good intelligent lock on the need to follow the instructions for fingerprint acquisition input, so that your original fingerprint data into the database. With the original record, the system compares the stored fingerprint information when the finger is pointed at the fingerprint sensing module to identify the fingerprint. When the information matches correctly and the fingerprint records match the database fingerprint records, the system allows the processing results to be transmitted through the power control box to the door lock to open the door, otherwise it does not open the door.

Fingerprint verification has the invariance and uniqueness, is a better coefficient of a verification method, family and personal privacy can be effectively protected. Therefore, intelligent lock using fingerprint recognition technology is very safe and feasible.