Fingerprint identification device based on wireless NFC

Abstract

The invention discloses a fingerprint identification device based on a wireless NFC. The device comprises an identity detection module used for indentifying identities and a finger collection module which is in data transmission with the identity detection module in a wireless mode and used for collecting fingers. The finger collection module comprises a pressure sensor, a signal comparison circuit, an A / D converter and an NFC inductor, all of which are connected in order. The identity detection module comprises a main controller, a power circuit module used for supplying power to loops of all power utilization modules, a reset circuit, a crystal oscillating circuit, an indentifying and comparing chip and a USB communication interface circuit. An input end of the main controller is provided with a clock circuit and an output end thereof is connected with a display screen and a voice prompt module. The voice prompt module comprises a voice driving circuit and a voice output circuit. The fingerprint identification device based on the wireless NFC has following beneficial effects: the fingerprint identification device is novel in design, simple in structure and high in reliability and practicability and has functions of transmitting wirelessly in a short distance and entering identities by identification.

Description

technical field [0001] The invention belongs to the technical field of fingerprint identification, and in particular relates to a wireless NFC-based fingerprint identification device. Background technique [0002] With the development of science and technology, various card products are born one after another, which provides convenience for everyone to use to a large extent, but also exposes the problem of information leakage. Once criminals get our cards, they can Using it to do things that harm our interests has caused a lot of inconvenience to our lives. For example, there are more and more places where ID cards are used when going out to do business. Don’t carry them with you. You often use them, but you are afraid of losing them if you carry them, and it is very difficult to reissue them. It is troublesome, and sometimes criminals use false information to do some illegal things. Personal information has always been the information criminals want to obtain through variou...

AI Technical Summary

Problems solved by technology

[0002] With the development of science and technology, various card products are born one after another, which provides convenience for everyone to use to a large extent, but also exposes the problem of information leakage. Once criminals get our cards, they can Using it to do things that harm our interests has caused a lot of inconvenience to our lives. For example, there are more and more places where ID cards are used when going out to do business. Don’t carry them with you. You often use them, but you are afraid of losing them if you carry them, and it is very difficult to reissue them. It is troublesome, and sometimes criminals use false information to do some illegal things. Personal information has always been the information that criminals want to obtain through various channels in order to profit from it

Images