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Fingerprint authenticity identification device

A technology of authenticity identification and fingerprints, which is applied in biometric identification, character and pattern recognition, and acquisition/sorting of fingerprints/palmprints, etc. It can solve the problems that fingerprint sensors are not easy to detect, and achieve the effect of improving detection accuracy

Inactive Publication Date: 2018-07-06
胡海东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the rapid development of fingerprint counterfeiting technology, many fake fingerprints made of resin, silica gel and other materials are not easy to be detected by ordinary fingerprint sensors.
In addition, for non-living fingers, ordinary fingerprint sensors are not easy to detect, giving criminals an opportunity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The above-mentioned fingerprint authenticity identification device is used for the cash machine, and the data transmission device 4 is a network cable interface, and the wired data transmission is carried out through the network cable, and is transmitted to the computer of the bank monitoring center, such as image 3 As shown, the infrared sensor is used to detect the temperature of the finger skin to identify whether it is a live finger; the ultrasonic probe array is used to detect the thickness of the finger skin to identify the authenticity of the fingerprint, prevent the theft of other people's fingerprints, and detect the blood flow to identify whether it is a non-living finger. ; The detection information is stored in the memory, and if a counterfeit fingerprint is detected, the alarm will send out an alarm signal, and at the same time, the data will be transmitted to the computer in the bank monitoring center through the network cable interface.

Embodiment 2

[0022] The above-mentioned fingerprint authenticity identification device is used for the family anti-theft door, and the data transmission device 4 is a GPRS wireless module, which transmits signals to the user's mobile phone by wireless transmission, such as Figure 4 As shown, the infrared sensor is used to detect the temperature of the finger skin to identify whether it is a live finger; the ultrasonic probe array is used to detect the thickness of the finger skin to identify the authenticity of the fingerprint, prevent the theft of other people's fingerprints, and detect the blood flow to identify whether it is a non-living finger. ;Access the detection information to the memory. If a counterfeit fingerprint is detected, the alarm will send an alarm signal. At the same time, through the GPRS wireless module, the data will be wirelessly transmitted to the user's mobile phone to provide user safety issues.

[0023] In summary, the present invention detects the skin temperatu...

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Abstract

The invention discloses a fingerprint authenticity identification device. The device comprises a touch panel in contact with a finger, a detecting device, a memory and a processor, wherein the detecting device, the memory and the processor are arranged under the touch panel. The detecting device comprises an ultrasonic probe array used for detecting the thickness of the finger skin and blood flow,and an infrared sensor which is arranged in the middle of the ultrasonic probe array to detect the temperature of the finger. The ultrasonic probe array, the infrared sensor and the memory are connected with the processor respectively. According to the invention, the temperature of the finger skin is detected by the infrared sensor, so as to discriminate whether the finger is of a living body; the thickness of the finger skin is detected by the ultrasonic probe array, so as to discriminate the authenticity of the fingerprint; theft of the finger of another person is prevented; the blood flowis detected, which can also identify whether the finger is not of a living body; through multi-point detection and various detection methods, the detection accuracy is improved; the device is furtherprovided with a data transmission device; and when a counterfeit fingerprint is detected, a signal is transmitted to a host computer to notify a monitoring person.

Description

technical field [0001] The invention belongs to the technical field of fingerprint identification, in particular to a fingerprint authenticity identification device. Background technique [0002] Generally speaking, users usually control computer access by setting a set of passwords, allowing online transactions through the network, or through the access control devices of homes and companies. However, these passcodes may be attacked. Stealing, because each person's fingerprint is unique, so the technology of using fingerprints for various encryptions has been more and more widely used in daily life. However, with the rapid development of fingerprint counterfeiting technology, many fake fingerprints made of resin, silica gel and other materials are difficult for ordinary fingerprint sensors to detect. In addition, ordinary fingerprint sensors are not easy to detect non-living fingers, which gives criminals an opportunity to take advantage of them. Contents of the inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/1382G06V40/1306G06V40/15G06V40/10
Inventor 胡海东
Owner 胡海东
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