CN110163165A

CN110163165A - A kind of method of fingerprint recognition

Info

Publication number: CN110163165A
Application number: CN201910442958.9A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-10-28
Filing date: 2016-10-28
Publication date: 2019-08-23
Also published as: CN106503675A; CN106503675B

Abstract

The present invention relates to a kind of method of fingerprint recognition, this high efficiency Fingerprint Identification Unit includes pedestal, is equipped with drive ring on the base, and inside drive ring, coaxial is arranged flexible touch cylinder；Drive ring can touch cylinder relative to elasticity, be freely rotated around own axes；It is touched between cylinder in drive ring and elasticity, identifier and locator is fixedly installed on the inner ring surface of drive ring, the locator and the line at identifier center and the axis of drive ring intersect；The identifier is in circular arc sheet, and the identification face of identifier and elasticity touch cylinder face；The locator includes infrared detection head, and elasticity described in the infrared detection head face touches cylinder；Computer chip is electrically connected by driving motor electric rotary, the driving motor, the identifier and locator in the drive ring；The Fingerprint Identification Unit delicate structure dynamically can efficiently be directed at finger print, improve fingerprint-collecting success rate.

Description

A kind of method of fingerprint recognition

Technical field

The present invention relates to a kind of electronic identifiers, are a kind of methods of fingerprint recognition particularly.

Background technique

With the development of science and technology development of the people on encryption system is more and more accurate, encryption system more high-end at present System has iris scan, biological electric scanning, finger scan etc., and masses are more common at present, cost is more human-oriented simultaneously is no more than Finger scan, therefore finger scan is gradually promoted in all trades and professions, or even state security department can also use fingerprint recognition Method is managed personal information；Such as when local police station handles personal document, need to enroll fingerprint；It needs to record when enrolling fingerprint Taker finger is close to Trackpad and is kept for 5-10 seconds, and the touch tablet of traditional Fingerprint Identification Unit is horizontal tabular, and user is being put When setting finger, needs to keep torsion wrist and press touch tablet, this process hand is more sour swollen, and the shake of hand will affect finger The admission of line；Therefore during fingerprint-collecting, the once success rate that this mode enrolls fingerprint is not high；Especially enroll youngster When virgin fingerprint, children's nature is active, largely effects on job schedule, while can also delay the time of other waiting persons, waiting person and If staff is repeatedly interfered when enrolling fingerprint, it will generate irritated psychology, this irritated psychology will infect entire work Make room, so that staff's behaves badly, influence attitude, this is also the bad reason of many service department's attitudes One of.

Summary of the invention

In view of the above-mentioned problems, the present invention provides a kind of high efficiency Fingerprint Identification Unit, which can Dynamic efficiently alignment finger print, enrolls failure caused by effectivelying prevent finger to rotate, improves fingerprint-collecting success rate；Together When, in fingerprint identification process, for hand without torsion, identification process is more comfortable.

To solve the above problems, the technical scheme adopted by the invention is that: this high efficiency Fingerprint Identification Unit includes pedestal, Drive ring is installed on the base, inside drive ring, coaxial is arranged flexible touch cylinder, and the elasticity touches cylinder by transparent Material is made into；Drive ring can touch cylinder relative to elasticity, be freely rotated around own axes；Drive ring and elasticity touch cylinder it Between, be fixedly installed with identifier and locator on the inner ring surface of drive ring, the line at the locator and identifier center with The axis of drive ring intersects；The identifier is in circular arc sheet, and the identification face of identifier and elasticity touch cylinder face；The positioning Device includes infrared detection head, and elasticity described in the infrared detection head face touches cylinder；The drive ring is electronic by driving motor Rotation, computer chip is electrically connected in the driving motor, the identifier and locator；The method of fingerprint recognition, comprising: The infrared detection head real time scan elasticity touches the environment in cylinder, and when there is finger to protrude into, infrared detection head transmits signal To computer chip, computer chip controls driving motor and drives drive ring rotation, and infrared detection head is rotated synchronously therewith, rotated Cheng Zhong, infrared detection head real time scan finger.

The beneficial effects of the present invention are: the infrared detection head real time scan elasticity touches the environment in cylinder, when there is finger When protruding into, signal is passed to computer chip by infrared detection head, and computer chip controls driving motor and drives drive ring rotation, infrared Detecting head rotates synchronously therewith, during rotation, infrared detection head real time scan finger, when infrared detection head face finger When nail, signal is transferred again to computer chip by locator, and driving motor stops operating；Identifier face finger at this time Finger belly, the fingerprint for the scanning finger that identifier can be accurate, complete.

Since the posture that everyone places finger is different, the direction of finger tripe is also inconsistent, and the present invention is in scanning It can automatically adjust, and automatically adjust identifier, so that identifier face finger belly；User only need to be with the posture of oneself the most comfortable Finger is protruded into elasticity to touch inside cylinder, scanning can be completed；Even if child can not keep attention and Ding Li for a long time, Finger is had rotated in scanning process, the present invention can also control identifier in real time, keep dynamic face finger belly, and then efficiently Completion finger scan.

To sum up, present invention working efficiency with higher and accuracy, effectively shorten the time of fingerprint recognition, admission, Reduce the time of waiting, while making the work of staff more comfortable, smooth, convenient for improving work climate, improves service Attitude.

Preferably, being also symmetrically equipped with extruding gasbag on the inner ring surface of drive ring；The extruding gasbag into Port is equipped with blower, and blower is electrically connected the computer chip；Thumb is capable of fixing and compressed when extruding gasbag is heaved, Improve the accuracy of the stability of fingerprint recognition.

As further preferred, it is provided with permanent magnetism suction piece in the extruding gasbag, touches the inner wall of cylinder in the elasticity Ferromagnetic brushing piece is installed, the ferromagnetic brushing piece is matched with permanent magnetism suction piece face；It is carried out clearly in order to touch the inner wall of cylinder to elasticity Clean, the moment keeps clean, to improve the accuracy of fingerprint recognition.

It is made into preferably, the elasticity touches cylinder by skin compatible material；In order to improve sense of touch, reduces children and twist finger Probability, and then improve fingerprint-collecting efficiency.

Detailed description of the invention

Fig. 1 is structural schematic diagram of this high efficiency Fingerprint Identification Unit one embodiment when being not used；

Fig. 2 is the structural schematic diagram of embodiment illustrated in fig. 1 when in use；

Fig. 3 is the side structure schematic view of embodiment illustrated in fig. 1.

Specific embodiment

Embodiment

In Fig. 1 into embodiment shown in Fig. 3, this high efficiency Fingerprint Identification Unit includes pedestal 1, is installed on pedestal 1 There is drive ring 2, inside drive ring 2, coaxial is arranged flexible touch cylinder 3, and the elasticity touches cylinder 3 by transparent pro-skin material Material is made into, and the material of pro-skin class can improve sense of touch, reduces the probability that children twist finger, and then improve fingerprint-collecting efficiency； Drive ring 2 can touch cylinder 3 relative to elasticity, be freely rotated around own axes；

Identifier 4 and locator 5, institute are fixedly installed between drive ring 2 and elasticity touch cylinder 3, on the inner ring surface of drive ring 2 The line for stating 4 center of locator 5 and identifier intersects with the axis of drive ring 2；The identifier 4 is in circular arc sheet, identifier 4 Identification face and elasticity touch 3 face of cylinder；The locator 5 includes infrared detection head 51,51 face of infrared detection head The elasticity touches cylinder 3；

For the drive ring 2 by 6 electric rotary of driving motor, the driving motor 6, the identifier 4 and locator 5 are electrical respectively Connect computer chip；

On the inner ring surface of drive ring 2, extruding gasbag 7 is also symmetrically installed；It is equipped in the air inlet of the extruding gasbag 7 Blower 8, blower 8 are electrically connected the computer chip；It is provided with permanent magnetism suction piece 71 in the extruding gasbag 7, described The inner wall that elasticity touches cylinder 3 is equipped with ferromagnetic brushing piece 31, and the ferromagnetic brushing piece 31 is matched with 71 face of permanent magnetism suction piece.

The beneficial effects of the present invention are: the 51 real time scan elasticity of infrared detection head touches the environment in cylinder 3, when there is hand When finger protrudes into, signal is passed to computer chip by infrared detection head 51, and computer chip controls driving motor 6 and drives 2 turns of drive ring Dynamic, infrared detection head 51 rotates synchronously therewith, and during rotation, 51 real time scan finger of infrared detection head works as infrared acquisition When the nail of first 51 face finger, signal is transferred again to computer chip by locator 5, and driving motor 6 stops operating；At this time The finger belly of 4 face finger of identifier, the fingerprint for the scanning finger that identifier 4 can be accurate, complete.

In the present embodiment, after 5 face nail of locator, blower 8 inflates extruding gasbag 7, and extruding gasbag 7 expands simultaneously It squeezes elasticity and touches cylinder, elasticity touches 3 deformation of cylinder and wraps up finger, further fixes finger, so that stablizing for finger be promoted to scan； After the end of scan, blower 8 extracts the gas in extruding gasbag 7 out, and elasticity touches cylinder 3 and restores to the original state；

Since the posture that everyone places finger is different, the direction of finger tripe is also inconsistent, and the present invention can in scanning Automatic adjustment, and identifier 4 is automatically adjusted, so that 4 face finger belly of identifier；User need to only be incited somebody to action with the posture of oneself the most comfortable Finger protrudes into elasticity and touches inside cylinder 3, and scanning can be completed；Even if child can not keep attention and Ding Li for a long time, Finger is had rotated in scanning process, the present invention can also control identifier 4 in real time, keep dynamic face finger belly, Jin Ergao The completion finger scan of effect.

In the present embodiment, extruding gasbag 7 with drive ring 2 when rotating, and under magneticaction, the ferromagnetic brushing piece 31 is same Step follows extruding gasbag 7 to slide on the inner wall that elasticity touches cylinder 3, and elasticity is touched remaining oil on cylinder 3 by ferromagnetic brushing piece 31 Rouge dust is removed, to guarantee that elasticity touches the cleaning of cylinder 3, and then improves the accuracy of fingerprint.

The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims

1. a kind of method of high efficiency fingerprint recognition, the Fingerprint Identification Unit that this method uses includes pedestal (1), and feature exists In: it is equipped on pedestal (1) drive ring (2), it is internal in drive ring (2), it is coaxial to be arranged flexible touch cylinder (3), it is described Elasticity touches cylinder (3) and is made by transparent material；Drive ring (2) can touch cylinder (3) relative to elasticity, freely turn around own axes It is dynamic；Drive ring (2) and elasticity touch cylinder (3) between, be fixedly installed on the inner ring surface of drive ring (2) identifier (4) and The line at locator (5), the locator (5) and identifier (4) center intersects with the axis of drive ring (2)；The identifier It (4) is in circular arc sheet, the identification face of identifier (4) and elasticity touch cylinder (3) face；The locator (5) includes infrared spy Gauge head (51), elasticity described in infrared detection head (51) face touch cylinder (3)；The drive ring (2) is by driving motor (6) electricity Turn is dynamic, and computer chip is electrically connected in the driving motor (6), the identifier (4) and locator (5)；

The method, comprising: the infrared detection head real time scan elasticity touches the environment in cylinder, when there is finger to protrude into, Signal is passed to computer chip by infrared detection head, and computer chip controls driving motor and drives drive ring rotation, infrared detection head It rotates synchronously therewith, during rotation, infrared detection head real time scan finger.

2. according to the method described in claim 1, it is characterized by:

On the inner ring surface of drive ring (2), extruding gasbag (7) are also symmetrically installed；Air inlet in the extruding gasbag (7) It is equipped with blower (8), blower (8) is electrically connected the computer chip；

After locator (5) face nail, blower (8) inflates extruding gasbag (7), and extruding gasbag (7) expands and squeezes elasticity Cylinder is touched, elasticity touches cylinder (3) deformation and wraps up finger, further fixes finger, to promote the stable scanning of finger；It is scanning After, blower (8) extracts the gas in extruding gasbag (7) out, and elasticity touches cylinder 3 and restores to the original state.

3. according to the method described in claim 2, it is characterized by: extruding gasbag (7) with drive ring (2) rotate when, in magnetic Under power effect, what the ferromagnetic brushing piece (31) synchronized follows extruding gasbag (7) to slide on the inner wall that elasticity touches cylinder (3), iron Elasticity is touched remaining grease dust on cylinder (3) and removed by magnetic brush piece (31), to guarantee that elasticity touches the cleaning of cylinder (3).