CN107665345A - Finger vein image acquisition device and smart lock - Google Patents
Finger vein image acquisition device and smart lock Download PDFInfo
- Publication number
- CN107665345A CN107665345A CN201711123305.1A CN201711123305A CN107665345A CN 107665345 A CN107665345 A CN 107665345A CN 201711123305 A CN201711123305 A CN 201711123305A CN 107665345 A CN107665345 A CN 107665345A
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- finger
- image acquisition
- vein image
- acquisition device
- module
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00563—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/14—Vascular patterns
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention relates to a kind of finger vein image acquisition device and smart lock, wherein, finger vein image acquisition device includes：Light source module, image capture module and finger position monitoring modular in place, finger receiving space is formed between light source module and image capture module, the face contacted in finger receiving space with finger horizontal is plane, monitoring modular is arranged on finger receiving space to finger position in place, for monitoring the position of the finger positioned at finger receiving space.The present invention by the face contacted in finger receiving space with finger horizontal by being arranged to plane, the problem of space of collection switch and finger venous image imaging surface being easily accessible so as to avoid the dirt of finger surface or sweat stain in the prior art, and causing finger venous image imaging surface collection vein image reliability low.Allow finger vein image acquisition device to collect clearly vein image, and then improve the recognition efficiency of vein image.
Description
Technical field
It is quiet more particularly to a kind of finger for identification checking the present invention relates to identification verification technique field
Arteries and veins image collecting device and smart lock.
Background technology
Finger vein identification technology is a kind of new biometrics identification technology, and it utilizes the vein distributed image in finger
To carry out identification.The characteristics of safe class is high, is had based on finger vein identification technology, so as to be widely used in user's body
Part checking.
At present, traditional finger vein image acquisition device by collection switch as shown in figure 5, be generally arranged on finger vena
On image imaging surface 405, there is certain space between finger venous image imaging surface 405 so as to cause collection to switch
403.Because when carrying out finger vein image acquisition, finger needs to be in contact with collection switch, therefore, carrying out, finger is quiet
During arteries and veins IMAQ, the dirt or sweat stain of finger surface easily enter the space 403, so as to influence finger venous image imaging
Surface 405 gathers the authenticity of finger venous image, causes the reliability of authentication low.If this space 403 is wetted
Ponding or incrustation it is more after, the finger vein image acquisition device cisco unity malfunction may be also resulted in.
The content of the invention
Based on this, it is necessary to for the problem of finger vein image acquisition device reliability is low in the prior art, there is provided one
Kind reliability higher finger vein image acquisition device and smart lock.
A kind of finger vein image acquisition device, including：Light source module, image capture module and finger position are supervised in place
Module is surveyed, described image acquisition module is arranged on bottom, and the light source module is disposed relative to described image acquisition module
Top, finger receiving space is formed between the light source module and described image acquisition module, in the finger receiving space
The face contacted with finger horizontal is plane, and monitoring modular is arranged on the finger receiving space to the finger position in place, is used for
Monitoring is located at the position of the finger of the finger receiving space, and when monitoring the position arrival predeterminated position of the finger,
Trigger the light source module and send the infrared light for being irradiated to the finger receiving space, and wake up described image acquisition module in institute
Under the irradiation for stating light source module, the vein image of the finger is gathered.
In one of the embodiments, the finger position in place monitoring modular be arranged in the finger receiving space with
On the face of finger horizontal contact.
In one of the embodiments, the face contacted with finger horizontal has the shape corresponding with finger.
In one of the embodiments, the finger position in place monitoring modular be arranged in the finger receiving space with
In the opposite of finger fingertip contact.
In one of the embodiments, the positioning and guiding unit with the finger tip contacts of finger is provided with the opposite.
In one of the embodiments, the positioning and guiding unit uses positioning and guiding groove or positioning and guiding lug boss.
In one of the embodiments, monitoring modular includes the pressure cell contacted with finger to the finger position in place.
In one of the embodiments, the pressure cell is included in pressure sensor, piezo-resistance and capacitance sensor
At least one.
In one of the embodiments, monitoring modular includes being arranged in finger receiving space supervising the finger position in place
Survey the infrared sensor of the position of finger.
In one of the embodiments, the light source module uses infrarede emitting diode or infrared bulb.
In one of the embodiments, the light source module includes at least one infrarede emitting diode and/or infrared lamp
Bubble, at least one infrarede emitting diode and/or infrared bulb are with array type arrangement.
In one of the embodiments, described image acquisition module includes imaging sensor and is arranged at described image sensing
Camera lens on device.
In one of the embodiments, described image acquisition module also includes infrared band pass filter, the infrared band logical
Optical filter is arranged between described image sensor and camera lens.
A kind of smart lock, including main control module, lock body and the finger vena according to any one of claim 1~13
Image collecting device, the main control module are connected with the lock body and finger vein image acquisition device respectively.
Above-mentioned finger vein image acquisition device and smart lock, by will be contacted in finger receiving space with finger horizontal
Face be arranged to plane, so as to avoid the dirt of finger surface or sweat stain in the prior art be easily accessible collection switch and finger
The space of vein image imaging surface, and cause finger venous image imaging surface to gather the problem of vein image reliability is low.
Allow finger vein image acquisition device to collect clearly vein image, and then improve the identification effect of vein image
Rate.
Brief description of the drawings
Fig. 1 is the structural representation of finger vein image acquisition device in one embodiment；
Fig. 2 is the structural representation of finger vein image acquisition device in one embodiment；
Fig. 3 is the structural representation of finger vein image acquisition device in one embodiment；
Fig. 4 is the structural representation of finger vein image acquisition device in one embodiment；
Fig. 5 is the structural representation of finger vein image acquisition device in the prior art.
In accompanying drawing, the list of parts representated by each label is as follows：101st, light source module；102nd, image capture module；103、
Finger receiving space；104th, finger；105th, finger position monitoring modular in place；106th, the face contacted with finger horizontal；107th, with
The opposite of finger fingertip contact；108th, positioning and guiding unit；200th, shell；201st, roof；1011st, the pole of the first infraluminescence two
Pipe；1012nd, the second infrarede emitting diode；1013rd, the 3rd infrarede emitting diode；1021st, imaging sensor；1022nd, camera lens；
1023rd, infrared band pass filter；403rd, narrow space；405th, imaging surface.
Embodiment
It should be appreciated that when element be referred to as " " another element " on " when, its can directly on another element or
There can be intermediary element in-between.By contrast, when element be referred to as " directly existing " another element " on " when, in the absence of insertion
Element.As used herein, term "and/or" includes any and all of one or more of lising for being associated
Combination.
It should be appreciated that although various elements, device, area can be described using term first, second, third, etc. herein
Domain, layer and/or part, but these elements, device, region, layer and/or part should not be limited by these terms.These
Term is only used for distinguishing an element, device, region, layer or part and another element, device, region, layer or part.Therefore,
In the case where not departing from teachings of the present invention content, the first element discussed below, device, region, layer or part can be with
Referred to as the second element, device, region, layer or part.
Term used herein and is not limiting as the present invention merely for the purpose of description specific embodiment.Such as
It is used herein, unless the context clearly, otherwise singulative " one " and " described " is also set includes plural shape
Formula.It is to be further understood that as used herein, term " comprising " or "comprising" or " having " are indicated in the presence of stated spy
Sign, region, integer, step, operation, element and/or device, but do not preclude the presence or addition of one or more of the other feature, area
Domain, integer, step, operation, element, device and/or its group.
In addition, such as " bottom " or " bottom ", " top " or " top " and " front portion " or " rear portion " can be used herein
The relation of an element and another element as shown in the drawings is described Deng relational language.It should be understood that the set culvert of relational language
Cover being differently directed for the device in addition to the orientation described in schema.If for example, device upset in a schema, then
The element being described as on " bottom " side of other elements will be orientated on " top " side of other elements.Cause
This, exemplary term " bottom " may depend on being specifically directed for schema and cover the orientation on " bottom " and " top ".Similarly, such as
In one schema of fruit device upset, then be described as positioned at other elements " under " or " lower section " element will be orientated in it is described
Other elements " top ".Therefore, exemplary term " under " or " lower section " can cover above and below two kinds orientation.
Unless otherwise defined, otherwise all terms (including technology and scientific and technical terminology) used herein have and the present invention
Those skilled in the art's is generally understood identical meaning.It will be further understood that, term in common dictionary (as determined
Those terms of justice) it should be interpreted that with the implication consistent with its implication in the context of correlation technique and the present invention, and
And unless clearly define herein, otherwise it will not be explained with idealization or undue formal sense.
Many details are provided in the following description so that the present invention obtains comprehensive understanding, but the present invention can also pass through
Implemented using the other manner different from mode described herein, therefore the present invention is not limited to what is hereinafter disclosed
Specific embodiment.
After refer to the attached drawing, the present invention can be described more complete herein, because the reality of the present invention shown in accompanying drawing
Apply example.But the present invention may be specific with different forms, and can not be construed as limited to these realities illustrated here
Apply example.On the contrary, providing these embodiments, the present invention more fully and completely, and can fully pass on the model of the present invention
Enclose to person skilled in art.Identical numeral is commonly referred to as identical element.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.
The embodiments of the invention provide a kind of finger vein image acquisition device, as shown in figure 1, including：Light source module
101st, image capture module 102 and finger position monitoring modular 105 in place, wherein, image capture module 102 is arranged on bottom
Portion, light source module 101 are disposed relative to the top of image capture module 102, light source module 101 and image capture module 102
Between form finger receiving space 103, be plane with the face 106 of the flat contact of finger 104 in finger receiving space 103, hand
Referring to position, monitoring modular 105 can be then arranged in finger receiving space 103 in place, be located at finger receiving space for monitoring
The position of 103 finger 104, and when monitoring the position arrival predeterminated position of finger 104, triggering light source module 101 is sent
The infrared light of finger receiving space 103 is irradiated to, and wakes up image capture module 102 under the irradiation of light source module 101, is gathered
The vein image of finger 104.
In the present embodiment, by the way that the face contacted in finger receiving space with finger horizontal is arranged into plane, so as to keep away
The sky that the dirt of finger surface or sweat stain in the prior art are easily accessible collection switch and finger venous image imaging surface is exempted from
Between, and cause finger venous image imaging surface to gather the problem of vein image reliability is low.So that finger vein image acquisition
Device can collect clearly vein image, and then improve the recognition efficiency of vein image.
In the present embodiment, when finger vein image acquisition to be carried out, finger position monitoring module monitors in place are passed through
Positioned at the position of the finger of finger receiving space, only when the position of finger reaches predeterminated position, light source module hair is just triggered
Go out to be irradiated to the infrared light of finger receiving space, while wake up image capture module collection positioned at the finger of finger receiving space
Vein image.So that when carrying out finger vein image acquisition every time, the position of finger and angle can be stablized relatively, and then
Image capture module is allowd to collect reliable and stable vein image, to improve the discrimination of vein image.Meanwhile pass through
Using finger position, monitoring modular triggers or waken up light source module when needing in place and image capture module enters work
State, and then enter resting state unwanted when, to reach the purpose of energy-conserving and environment-protective.
In one embodiment, monitoring modular can use the pressure cell contacted with finger to finger position in place, or set
Put the infrared sensor of the position for the monitoring finger not contacted in finger receiving space with finger.Wherein, pressure cell can be with
Including at least one of pressure sensor, capacitance sensor and piezo-resistance.
In one embodiment, monitoring modular 105 can be arranged in finger receiving space 103 and hand finger position in place
On the face 106 for referring to flat contact.In the present embodiment, entered in place exemplified by monitoring modular 105 is capacitance sensor by finger position
Row explanation.By the specified location embedded capacitor sensor in the face 106 contacted with finger horizontal, the specified location can be position
The preferable position of finger venous image effect is gathered in finger receiving space 103.Need to carry out finger venous image so as to work as
During collection, finger to be collected is placed in finger receiving space 103, the face 106 contacted with finger horizontal senses finger
Certain pressure after, then it is assumed that the position of finger reaches predeterminated position, sends so as to triggering light source module 101 and is irradiated to finger and holds
Receive the infrared light in space 103, while wake up image capture module 102 under the irradiation of light source module 101, collection finger 104
Vein image so that image capture module 102 can collect more reliable, stable finger venous image.
In one embodiment, the face 106 contacted with finger horizontal can be any flat shape.In the present embodiment,
In order to further improve the efficiency of finger vein image acquisition and discrimination, the face 106 contacted with finger horizontal can be set
It is set to the shape corresponding with finger.So that when carrying out finger vein image acquisition, finger easily enters finger appearance
The preferable correct position of collection effect in space 103 is received, so as to improve the efficiency of finger vein image acquisition and discrimination.
In one embodiment, as shown in Fig. 2 finger position in place monitoring modular 105 can also be arranged on finger receiving
In the opposite 107 contacted in space 103 with finger fingertip.In the present embodiment, with finger position, monitoring modular 105 is in place
Illustrated exemplified by pressure sensor.By being set in the opposite 107 that is contacted in finger receiving space 103 with finger fingertip
Pressure sensor, so as to which when needing to carry out finger vein image acquisition, finger to be collected is placed on into finger receiving space
In 103, after the opposite 107 that is contacted with finger fingertip senses the certain pressure of finger fingertip, then it is assumed that the position of finger is arrived
Up to predeterminated position, send so as to triggering light source module 101 and be irradiated to the infrared light of finger receiving space 103, while wake up image
Acquisition module 102 gathers the vein image of finger 104 so that image capture module 102 can under the irradiation of light source module 101
To collect more reliable, stable finger venous image.
In one embodiment, as shown in figure 3, can also be set in the opposite 107 contacted with finger fingertip and finger
Finger tip contacts positioning and guiding unit 108.Specifically, in the present embodiment, the positioning and guiding unit 108 can be led using positioning
Realized to groove or positioning and guiding lug boss.So that when when finger vein image acquisition to be carried out, by finger vena to be collected
The finger 104 of image is placed in finger receiving space 103 so that the tip portion of finger can rapidly enter finger and accommodate sky
Between in 103, and be in contact with positioning and guiding unit 108, putting position so as to relatively quick fixed finger 104 and
Placing attitude, it will not produce due to the putting position of same finger 104 and the otherness of placing attitude and cause the hand of collection
The problem of referring to vein image distortion, the stability and recognition efficiency of vein image acquisition are improved to a certain extent.
In one embodiment, as shown in figure 4, finger position monitoring modular 105 is arranged on finger receiving space 103 in place
In on the face 106 that is contacted with finger horizontal, at this time it is also possible to positioning and guiding unit 108 is used in combination, so as to carry out finger quiet
During arteries and veins IMAQ, finger can be guided to rapidly enter suitable position in finger receiving space 103, further to improve finger
The stability and recognition efficiency of vein image acquisition.
In one embodiment, finger to be collected can also be monitored using infrared sensor in finger receiving space 103
Position, if infrared sensor monitor finger to be collected finger receiving space 103 position reach predeterminated position,
Triggering light source module 101 sends the infrared light for being irradiated to finger receiving space 103, while wakes up image capture module 102 in light
Under the irradiation of source module 101, the vein image of finger 104 is gathered.
In one embodiment, infrared sensor, positioning and guiding unit and pressure sensor or capacitance sensor also may be used
To be used in combination, so that finger position monitoring is more accurate, finger is gathered to further increase image capture module 102
The stability of vein image.
In one embodiment, the finger vein image acquisition device can also include shell 200, the top of the shell 200
Portion has roof 201, and light source module 101 can be arranged on the roof 201.Specifically, in the present embodiment, light source module can
To use infrarede emitting diode or infrared bulb.So as to send the infrared light for being aimed downwardly finger receiving space 103, it is located at
Then under the irradiation of light source module 101, collection accommodates the image capture module 102 of the lower section of finger receiving space 103 positioned at finger
The vein image of the finger 104 in space 103.
In one embodiment, light source module 101 can include multiple infrarede emitting diodes and/or infrared bulb, more
Individual infrarede emitting diode and/or infrared bulb can be with array type arrangements.Such as multirow can be arrived according to one to multiple row or one
Arrangement.Light source module 101 can include three infrarede emitting diodes, and as shown in Figure 2, Figure 3, Figure 4, light source module 101 includes
First infrarede emitting diode 1011, the second infrarede emitting diode 1012 and the 3rd infrarede emitting diode 1013, pass through this
Three infrarede emitting diodes 1011,1012 and 1013 form a row light source module 101.In the present embodiment, by multiple
Infrarede emitting diode and/or infrared bulb, can provide relatively strong and highly uniform infrared light, this infrared light has
The extremely strong ability for penetrating finger, so as to produce large-size and apparent finger venous image.
In one embodiment, as Fig. 2, Fig. 3 to and Fig. 4 shown in, image capture module 102 can include image sensing
Device 1021 and the camera lens 1022 being arranged on imaging sensor 1021, the surface of camera lens 1022 form the imaging of finger venous image
Face.In the present embodiment, infrared light caused by light source module 101 is aimed downwardly the imaging surface of the camera lens 1022 below finger,
So as to produce finger venous image, by the focusing of camera lens 1022, the finger vena after focusing on is obtained by imaging sensor 1021
Image.
In one embodiment, image capture module 102 can also include infrared band pass filter 1023, the infrared band logical
Optical filter 1023 is arranged between imaging sensor 1021 and camera lens 1022.Due to infrared band pass filter 1023 only allow it is infrared
Light is by so as to eliminate the interference of other light in addition to infrared light, thus further increasing imaging sensor 1021 and obtaining
The quality of the finger venous image taken.
The embodiment of the present invention additionally provides a kind of smart lock, its can include main control module, lock body and as shown in Figure 1, Figure 2,
Finger vein image acquisition device shown in Fig. 3 and Fig. 4, main control module respectively with lock body and finger vein image acquisition
Device is connected.In the present embodiment, the finger venous image that main control module is gathered according to finger vein image acquisition device with
The finger venous image to prestore is compared, and successfully time control lockmaking body unlocking is being compared, to realize the purpose of intelligent unlocking.Its
In, finger vein image acquisition device realize details may be referred to as shown in Figure 1, Figure 2, Fig. 3 and Fig. 4 part, do not exist herein
Repeat.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (14)
- A kind of 1. finger vein image acquisition device, it is characterised in that including：Light source module, image capture module and finger Monitoring modular, described image acquisition module are arranged on bottom in place for position, and the light source module is disposed relative to described image The top of acquisition module, finger receiving space is formed between the light source module and described image acquisition module, in the finger The face contacted in receiving space with finger horizontal is plane, and monitoring modular is arranged on the finger receiving to the finger position in place Space, reached in advance for monitoring the position of the finger positioned at the finger receiving space, and in the position for monitoring the finger If during position, trigger the light source module and send the infrared light for being irradiated to the finger receiving space, and wake up described image and adopt Collect module under the irradiation of the light source module, gather the vein image of the finger.
- 2. finger vein image acquisition device according to claim 1, it is characterised in that the finger position monitors in place Module is arranged on the face contacted in the finger receiving space with finger horizontal.
- 3. finger vein image acquisition device according to claim 2, it is characterised in that described to contact with finger horizontal Face has the shape corresponding with finger.
- 4. finger vein image acquisition device according to claim 1, it is characterised in that the finger position monitors in place Module is arranged in the opposite contacted in the finger receiving space with finger fingertip.
- 5. finger vein image acquisition device according to claim 4, it is characterised in that be provided with the opposite with The positioning and guiding unit of the finger tip contacts of finger.
- 6. finger vein image acquisition device according to claim 5, it is characterised in that the positioning and guiding unit uses Positioning and guiding groove or positioning and guiding lug boss.
- 7. according to the finger vein image acquisition device described in any one of claim 2~6, it is characterised in that the finger position Put the pressure cell that monitoring modular in place includes contacting with finger.
- 8. finger vein image acquisition device according to claim 7, it is characterised in that the pressure cell includes pressure At least one of sensor, piezo-resistance and capacitance sensor.
- 9. according to the finger vein image acquisition device described in any one of claim 2~6, it is characterised in that the finger position Putting monitoring modular in place includes being arranged on the infrared sensor for the position that finger is monitored in finger receiving space.
- 10. finger vein image acquisition device according to claim 1, it is characterised in that the light source module is using red UV light-emitting diode or infrared bulb.
- 11. finger vein image acquisition device according to claim 1, it is characterised in that the light source module is included extremely Few an infrarede emitting diode and/or infrared bulb, at least one infrarede emitting diode and/or infrared bulb are with square Formation arranges.
- 12. finger vein image acquisition device according to claim 1, it is characterised in that described image acquisition module bag Include imaging sensor and the camera lens being arranged in described image sensor.
- 13. finger vein image acquisition device according to claim 12, it is characterised in that described image acquisition module is also Including infrared band pass filter, the infrared band pass filter is arranged between described image sensor and camera lens.
- 14. a kind of smart lock, it is characterised in that including main control module, lock body and according to any one of claim 1~13 Finger vein image acquisition device, the main control module respectively with the lock body and finger vein image acquisition device phase Even.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711123305.1A CN107665345A (en) | 2017-11-14 | 2017-11-14 | Finger vein image acquisition device and smart lock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711123305.1A CN107665345A (en) | 2017-11-14 | 2017-11-14 | Finger vein image acquisition device and smart lock |
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| CN107665345A true CN107665345A (en) | 2018-02-06 |
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| CN201711123305.1A Pending CN107665345A (en) | 2017-11-14 | 2017-11-14 | Finger vein image acquisition device and smart lock |
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| CN108171858A (en) * | 2018-02-13 | 2018-06-15 | 南京东屋电气有限公司 | A kind of automobile door lock with separate type infrared image acquisition device |
| WO2019024320A1 (en) * | 2017-08-01 | 2019-02-07 | 南京东屋信息科技有限公司 | Finger vein image acquisition device and intelligent lock |
| CN109977926A (en) * | 2019-04-23 | 2019-07-05 | 珠海格力电器股份有限公司 | Finger vein recognition device, intelligent door lock and intelligent unlocking method |
| CN110637303A (en) * | 2018-02-13 | 2019-12-31 | 闵浩 | Infrared physiological characteristic image acquisition device and door lock with infrared physiological characteristic image acquisition device |
| CN115713821A (en) * | 2022-11-02 | 2023-02-24 | 德施曼机电（中国）有限公司 | Electronic lock based on finger vein recognition and operation method thereof |
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