Living fingerprint recognition device

Abstract

The invention discloses a living fingerprint recognition device comprising a microcontroller and a phased array biological recognition module, a detection module, a storage and a power supply module connected with the microcontroller, wherein the microcontroller is used for processing information of the phased array biological recognition module and the detection module in real time; the phased array biological recognition module is used for recognizing a fingerprint; the detection module is used for collecting physiological feature information of a user; the storage is used for storing the fingerprint information and the physiological feature information of the user; and the power supply module powers the microcontroller, the phased array biological recognition module, the detection module and the storage. The device provided by the invention applies a phased array principle to a fingerprint sensor, a recognition rate and accuracy of the fingerprint sensor are improved, the risk that the fingerprint recognition device is cheated by the counterfeit false fingerprint is reduced by adding the detection module, and security of the fingerprint recognition device is improved.

Description

technical field [0001] The invention relates to the technical field of fingerprint identification, in particular to a living fingerprint identification device. Background technique [0002] Fingerprints are the uneven lines on the skin on the front of the end of a person's fingers. The lines are arranged regularly to form different grain types. The starting point, ending point, joint point and bifurcation point of the ridge line are called the detail feature points of the fingerprint. Among them, the identification can be carried out by comparing the minutiae feature points of different fingerprints. Because everyone's fingerprints are different, even between the ten fingers of the same person, there are obvious differences in fingerprints, so fingerprints can be used for identification. [0003] At present, fingerprint identification technology has been widely used in security access control, attendance assessment, examination identification, safe cabinet, U disk data en...

AI Technical Summary

Problems solved by technology

However, a special imitation fingerprint film technology has appeared on the market. By copying the fingerprint pattern of the subject, the fingerprint can be copied on a similar silica gel material, and then applied to the fingerprint identification device to pass the verification, so as to deceive the conventional fingerprint identification device. It makes the checkpoints that were originally intended to use the uniqueness of human fingerprints for identity verification useless

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