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A fingerprint lock with true and false fingerprint identification function and its identification method

A fingerprint recognition and fingerprint lock technology, applied in the field of spectral recognition, can solve the problems of low pattern recognition accuracy and inability to meet practical application requirements.

Active Publication Date: 2021-08-24
JILIN QS SPECTRUM DATA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current fingerprint recognition technology is limited to the use of image information. When the image features of the research objects are highly similar, the accuracy of pattern recognition is low, which cannot meet the needs of practical applications.

Method used

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  • A fingerprint lock with true and false fingerprint identification function and its identification method
  • A fingerprint lock with true and false fingerprint identification function and its identification method
  • A fingerprint lock with true and false fingerprint identification function and its identification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] refer to Figure 1-5 , a kind of fingerprint lock with true and false fingerprint identification function of the present invention comprises: lock body main body, the main board that is positioned at lock body main body, mechanical switch, fingerprint collector, microprocessing CPU, intelligent emergency key, lock body body interior is also set Spectrum recognition system is arranged, and described spectrum recognition system is used for identifying the authenticity of fingerprint, and described spectrum recognition system is connected with microprocessing CPU, fingerprint collector, main board respectively;

[0045] The spectrum identification system includes: a light source 1, a collimating lens 2, a reflecting prism 3, a fingerprint to be tested 4, a focusing lens 5, a spectrum chip 6, and an identification module 7; the light source 1, a collimating lens 2, a reflecting prism 3, The focusing lens 5, the spectrum chip 6, and the identification module 7 are connected ...

Embodiment 2

[0060] The spectrum chip of the present invention also includes: a spectrum modulation module, an image and spectrum inversion module; the spectrum modulation module is used to modulate the reflected light spectrum of the finger irradiated by the three primary color light sources, and convert the optical signal into an electrical signal , converted into a digital signal or coded output after amplification and analog-to-digital conversion; the image and spectral inversion module are electrically connected to the spectral modulation module, and are used to reverse the optical signal intensity information and corresponding pixel position information output by the spectral modulation module. Perform image data of finger prints and reflection spectrum data of fingers;

[0061] The spectrum identification module adopts a distance calculation method or a discrimination test method when performing identification, and the distance calculation method includes the Euclidean distance metho...

Embodiment 3

[0068] A method for identifying a fingerprint lock with the function of identifying true and false fingerprints provided by the present invention, specifically comprises the following steps:

[0069] Step S1: The fingerprint to be tested presses the upper surface of the reflective prism, starts the recognition module to start the recognition function of the fingerprint lock, and the fingerprint lock system starts self-test. After the self-test is normal, the spectrum chip and the data processing module in the spectrum recognition module are in the warm-up standby state ;

[0070] Step S2: The white light source emits a light beam after receiving the start command to activate the identification module. The light beam is collimated by the collimator lens and then incident on the 90° reflective prism for reflection. At this time, the reflected light beam carries the spectral information of the fingerprint to be tested;

[0071] Step S3: Start the spectrum chip, collect the spectr...

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PUM

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Abstract

The invention provides a fingerprint lock with the function of identifying true and false fingerprints and its identification method. The main body of the lock body, a main board located inside the main body of the lock body, a mechanical switch, a fingerprint collector, and a micro-processing CPU are also provided inside the main body of the lock body. An identification system, the spectrum identification system is respectively connected with the micro-processing CPU, the fingerprint collector, and the main board. The identification module is used to start the identification function, the light source is turned on, the spectral data collection of the spectrum chip, the data processing module and the matching identification module are started to perform command control; the light source is a white light source; the spectrum chip is used to collect the spectral information of the fingerprint irradiated by the white light source, and Pass the spectral data to the data processing module, and realize the identification of true and false fingerprints after detection by the matching identification module. The invention has the advantages of: overcoming the disadvantage of being unable to effectively distinguish between real and fake fingers in the process of using images to identify fingerprints, making up for the shortcomings of the existing technology, and having the advantages of small size, thin thickness, high precision, and fast detection speed.

Description

technical field [0001] The invention relates to the technical field of spectrum identification, in particular to a fingerprint lock with the function of identifying true and false fingerprints and an identification method thereof. Background technique [0002] Smart fingerprint lock is the product of the development of smart home. It is a perfect combination of computer network information, electronic technology, mechanical technology and modern hardware technology. It is a step-up evolution on the basis of the original mechanical electronic lock and combination lock. It is more safe, convenient and fast. At present, there are two main ways for fingerprint locks to collect fingerprints, optical and capacitive. Regardless of the acquisition method, the fingerprint lock system is based on the uneven lines on the front skin of the end of the human finger and the specificity of these lines on patterns, breakpoints and intersections. The fingerprint is processed by photoelectri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07C9/00G06K9/00G06K9/20
CPCG07C9/00563G06V40/1388G06V40/1394G06V40/1324G06V40/1365G06V10/147
Inventor 任玉姚治海蔡红星张永生唐伟利王朔田野周文军
Owner JILIN QS SPECTRUM DATA TECH CO LTD