CN206557801U - A kind of finger vein image acquisition device based on near-infrared LED array light source - Google Patents
A kind of finger vein image acquisition device based on near-infrared LED array light source Download PDFInfo
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- CN206557801U CN206557801U CN201720230027.9U CN201720230027U CN206557801U CN 206557801 U CN206557801 U CN 206557801U CN 201720230027 U CN201720230027 U CN 201720230027U CN 206557801 U CN206557801 U CN 206557801U
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- finger
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- infrared led
- image acquisition
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Abstract
The utility model discloses a kind of finger vein image acquisition device based on near-infrared LED array light source, belong to human-body biological authentication techniques field, including shell, top cover and rubber base plate, there is luminescence unit in shell, near-infrared LED array of source, light guide sheet, finger fixer, infrared filter and CMOS camera, power save unit is arranged at the bottom of CMOS camera, control circuit for light source, dsp controller, memory cell, communication unit and CMOS camera control circuit, light guide sheet is arc light guide sheet, a plurality of curved surface groove is provided with finger fixer, the surface of curved surface groove is provided with flexible glue basic unit and suction tray.The utility model can not only increase intensity of illumination, can eliminate finger shade, it is tended to near-infrared illumination, make illumination that finger is completely covered, prevent finger from shaking, and improve IMAQ quality, can realize automation mechanized operation with mobile hand-held device wireless connection.
Description
Technical field
The utility model is related to a kind of finger vein image acquisition device, more particularly to a kind of based on near-infrared LED battle array
The finger vein image acquisition device of row light source, belongs to human-body biological authentication techniques field.
Background technology
With the development and progress of society, information technology has gradually been melted into the work and life of people, to the mankind
While society offers convenience, safety and secrecy to information it is also proposed requirement that is higher, updating.However, generally making at present
Authentication identifying method, such as password, password, key, ID cards, exist easily damage, forget, being stolen, being decrypted etc. and ask
Topic, the daily life given people brings many troubles, or even causes great property and life potential safety hazard.According to statistics, in U.S.
State has nearly hundred million dollars of welfare fund to be palmed off by others to get every year, just have every year in only Shenzhen of China 2,000,000 RMB with
On social insurance be falsely taken, equally existing personation identity in other countries such as France, Britain causes the feelings of heavy economic losses
Condition.Meanwhile, traditional identification technology can not realize the authentication to terrorist, particularly each international politics since " 911 " event
Mansion is all in biological support identification technology energetically, and the safe examination system of China's first Olympic Games just uses biological identification technology.Therefore,
The demand that human-body biological identification technology caters to the epoch turns into the study hotspot in this century, while also bringing huge economic city
.
After the slow growth of experience, biological identification technology was now into fast-developing stage, 2007 to 2013
During 6 years, the world market scale average annual growth rate of biological identification technology is 21.7%, and this increases in whole world most industries
Rate really belongs to exception under the contrast less than 5%, and in 2015, biological identification technology world market economic scale reached 13,000,000,000 dollars,
The year two thousand twenty will be added to 25,000,000,000 dollars, and the average annual growth rate in this 5 years is approximately 14%.In a word, continued to develop in technology of Internet of things
Overall background under, with the continuous maturation of biological identification technology, its market prospects is inestimable.
Vein identification technology is that the hemoglobin in human vein can absorb the light principle of certain wavelength, is made
When irradiating vein with the light in the wave-length coverage, vein image is obtained, then the image of acquisition is analyzed and processed, finally
Obtained vein pattern value is matched in database, realizes and vein identification technology, which is divided into hand, to be differentiated to the identity of individual
Palm vein recognition technical, Palm-dorsal vein recognition technology and finger vein identification technology, because the blood vessel of palm is thinner, while fat
Fat is thicker, and obvious palmprint information can also influence the IMAQ of vena metacarpea in addition, so the vessel information collected is less
And it is unstable；Hand back vein information is enriched the most, and skin is than relatively thin, in that context it may be convenient to carries out IMAQ, but gathers
In must clench one's fists and could obtain vein image, and then the fixation of the back of the hand is turned into problem, it is easy to collection position occur
Mobile and deflection, influences discrimination；Finger vena information is relatively enriched, and finger position is fixed well, the compact simplicity of harvester, skin
Skin fat is less, easily transmits near infrared light, can very easily collect steady and audible vein image, therefore, finger is quiet
The collection and identification of arteries and veins image are current biological identification technology study hotspots both at home and abroad.
In this context, study a set of intellectuality and refer to vein identification device, unit identification can be carried out, also can be with meter
Calculation machine or the interconnection of other control systems, such as：Gate inhibition, examine business system etc., with higher confidentiality, security, it is antitheft, examine
It is diligent, safely, examine in terms of business there is important application value and important meaning.At present, the collection and knowledge of finger venous image
It is not more have that image conformity is poor, intensity of illumination not enough, the problem of finger can not be completely covered, image irradiation distributing homogeneity
It is poor, the segmentation interface of influence finger areas and background area, and in image acquisition process, easily occur finger shake and lead
Cause IMAQ smudgy, cause Vein Verification information unobvious, cause picture quality to meet requirement.
Utility model content
Main purpose of the present utility model is to solve the image uniform that current finger vein image acquisition device is present
Property poor, intensity of illumination is inadequate, finger, finger can not be completely covered easily occur shake and cause image irradiation distributing homogeneity compared with
The segmentation interface of difference, influence finger areas and background area, causes Vein Verification information unobvious, influences asking for picture quality
Topic, and a kind of finger vein image acquisition device based on near-infrared LED array light source is provided.
The purpose of this utility model can reach by using following technical scheme：
A kind of finger vein image acquisition device based on near-infrared LED array light source, including shell, top cover and rubber-sole
Seat, the top cover is arranged on above the shell, and luminescence unit, near-infrared LED array of source, leaded light are provided with the shell
Piece, finger fixer, infrared filter and CMOS camera, the near-infrared LED array of source are electrically connected with the luminescence unit
Connect；The bottom of the CMOS camera is provided with power save unit, control circuit for light source, dsp controller, memory cell, communication unit
With CMOS camera control circuit, the power save unit, the control circuit for light source, the memory cell, the communication unit,
The CMOS camera control circuit is electrically connected with the dsp controller；The light guide sheet is arc light guide sheet, the arc
The arc opening of light guide sheet is towards the finger fixer, and the finger fixer is interior to be provided with a plurality of curved surface groove, the curved surface groove
Surface be provided with flexible glue basic unit, the flexible glue basic unit be provided with suction tray, the suction tray with absorption motor connection, the absorption
Motor is electrically connected with the dsp controller.
It is preferred that scheme be that the luminescence unit is electrically connected with a transformer, the light guide sheet is arranged on the near-infrared
Between LED light source array and the finger fixer, the infrared filter is arranged on the finger fixer and the CMOS
Between camera.
In any of the above-described scheme preferably, the luminescence unit passes through control circuit for light source and the dsp controller
Electrical connection, the CMOS camera controls circuit to be electrically connected with the dsp controller by CMOS camera.
In any of the above-described scheme preferably, the power save unit respectively with the control circuit for light source, the CMOS
Head control circuit electrical connection is imaged, the power save unit controls the control circuit for light source and the CMOS camera to control respectively
Circuit, and realize electricity-saving function during under the luminescence unit, the CMOS camera off working state.
In any of the above-described scheme preferably, the memory cell, the communication unit are electric with the power save unit
Connection, the memory cell is used to store the finger venous image after collection and processing, the communication unit and channel radio Iflytech
Line is electrically connected, and for being connected with customer mobile terminal, the wireless communication antenna is arranged on the top cover.
In any of the above-described scheme preferably, the light guide sheet is integrally formed setting by high penetration optical material, described
Light guide sheet thickness is uniform, and the light guide sheet is arc glass.
In any of the above-described scheme preferably, the top cover is provided with switch, the switch and the power save unit, institute
State dsp controller electrical connection, the startup and closing of the switch control dsp controller.
In any of the above-described scheme preferably, frosting is provided between the curved surface groove and the flexible glue basic unit, it is described
Flexible glue basic unit is silica gel.
In any of the above-described scheme preferably, the shell is provided with control interface, the control interface provided with control
Button and LCDs processed, the control button are controlled with the power save unit, the control circuit for light source, the DSP respectively
Device processed, the memory cell, the communication unit, CMOS camera control circuit electrical connection.
In any of the above-described scheme preferably, the shell is provided with catching groove, signal lamp, multiple interfaces and radiator window,
The catching groove is arranged on the shell both sides, and the radiator window is arranged on the dsp controller side, and the side of the interface is set
There is label, the interface includes power interface, data transmission interface and preliminary data coffret.
Advantageous effects of the present utility model：According to the finger of the present utility model based on near-infrared LED array light source
Vein image acquisition device, the finger vein image acquisition device based on near-infrared LED array light source that the utility model is provided,
Solve that the image conformity that current finger vein image acquisition system is present is poor, intensity of illumination not enough, can not be completely covered
Finger, finger easily occur to shake and cause image irradiation distributing homogeneity poor, the segmentation of influence finger areas and background area
Interface, causes Vein Verification information unobvious, the problem of influenceing picture quality, passes through near-infrared LED array of source and light guide sheet
Intensity of illumination can not only be increased, and finger shade can be eliminated, it is tended to near-infrared illumination, make illumination that hand is completely covered
Refer to, strengthen image conformity, can be steady by finger fixer and the suction tray being arranged in finger fixer and flexible glue basic unit
Fixed fixed finger, prevents from shaking in finger vena texture gatherer process, makes Vein Verification information substantially, passes through infrared absorption filter
Wave plate is conducive to removing background, improves IMAQ quality, is realized and is moved with user by wireless communication antenna and communication unit
Handheld device wireless connection, by setting control button and LCDs in control interface to realize automation mechanized operation, passes through
Rubber base plate and radiator window are set, the stabilization of finger vein image acquisition device can not only be ensured, moreover it is possible to realize finger vena
The radiating of image collecting device, it is ensured that its is stable.
Brief description of the drawings
Fig. 1 is according to the finger vein image acquisition device structure of the present utility model based on near-infrared LED array light source
A preferred embodiment structural representation；
Fig. 2 is excellent according to the finger vein image acquisition device one of the present utility model based on near-infrared LED array light source
Select the inside connection diagram of embodiment, the embodiment can be and Fig. 1 identicals embodiment or different with Fig. 1
Embodiment.
In figure：1- shells, 2- top covers, 3- rubber base plates, 4- wireless communication antennas, 5- switches, 6- catching grooves, 7- signal lamps,
8- luminescence units, 9- near-infrared LED array of source, 10- light guide sheets, 11- finger fixers, 12- infrared filters, 13-CMOS
Camera, 14- control interfaces, 15- control buttons, 16- LCDs, 17- radiator windows, 18- power save units, 19- light source controls
Circuit processed, 20-DSP controllers, 21- memory cell, 22- communication units, 23-CMOS shooting head control circuits, 24- power supplys connect
Mouthful, 25- data transmission interfaces, 26- preliminary data coffrets, 27- labels, 28- suction trays, 29- absorption motors.
Embodiment
To make those skilled in the art more clear and clear and definite the technical solution of the utility model, with reference to embodiment and
Accompanying drawing is described in further detail to the utility model, but embodiment not limited to this of the present utility model.
As depicted in figs. 1 and 2, a kind of finger venous image based on near-infrared LED array light source that the present embodiment is provided
Harvester, including shell 1, top cover 2 and rubber base plate 3, the top cover 2 are arranged in the top of shell 1, the shell 1
Provided with luminescence unit 8, near-infrared LED array of source 9, light guide sheet 10, finger fixer 11, infrared filter 12 and CMOS shooting
First 13, the near-infrared LED array of source 9 is electrically connected with the luminescence unit 8；The bottom of the CMOS camera 13 is provided with section
Electric unit 18, control circuit for light source 19, dsp controller 20, memory cell 21, communication unit 22 and CMOS camera control circuit
23, the power save unit 18, the control circuit for light source 19, the memory cell 21, the communication unit 22, the CMOS take the photograph
As head control circuit 23 is electrically connected with the dsp controller 20；The light guide sheet 10 is arc light guide sheet, and the arc is guide-lighting
The arc opening of piece is towards the finger fixer 11, and the finger fixer 11 is interior to be provided with a plurality of curved surface groove, the curved surface groove
Surface be provided with flexible glue basic unit, the flexible glue basic unit be provided with suction tray 28, the suction tray 28 with adsorb motor 29 be connected, institute
Absorption motor 29 is stated to electrically connect with the dsp controller 20.
In the present embodiment, as shown in figure 1, the luminescence unit 8 is electrically connected with a transformer, the light guide sheet 10 is set
Between the near-infrared LED array of source 9 and the finger fixer 11, the infrared filter 12 is arranged on the finger
Between fixator 11 and the CMOS camera 13.
In the present embodiment, as shown in Fig. 2 the luminescence unit 8 passes through control circuit for light source 19 and the dsp controller
20 electrical connections, the CMOS camera 13 controls circuit 23 to be electrically connected with the dsp controller 20 by CMOS camera, described
Power save unit 18 is electrically connected with the control circuit for light source 19, CMOS camera control circuit 23 respectively, and the economize on electricity is single
Member 18 controls the control circuit for light source 19 respectively and the CMOS camera controls circuit 23, and in the luminescence unit
Electricity-saving function is realized when the 8th, under the off working state of CMOS camera 13, the memory cell 21, the communication unit 22 are equal
Electrically connected with the power save unit 18, the memory cell 21 is used to store the finger venous image after collection and processing, described
Communication unit 22 is electrically connected with wireless communication antenna 4, for being connected with customer mobile terminal, and the wireless communication antenna 4 is set
On the top cover 2.
In the present embodiment, it is described as shown in figure 1, the light guide sheet 10 is integrally formed setting by high penetration optical material
The thickness of light guide sheet 10 is uniform, and the light guide sheet 10 is arc glass, the top cover 2 provided with switch 5, the switch 5 with it is described
Power save unit 18, the dsp controller 20 are electrically connected, the startup and closing of the control of switch 5 dsp controller 20, institute
State and frosting is provided between curved surface groove and the flexible glue basic unit, the flexible glue basic unit is silica gel.
In the present embodiment, as shown in figure 1, the shell 1 is provided with control interface 14, it is provided with the control interface 14
Control button 15 and LCDs 16, the control button 15 respectively with the power save unit 18, the control circuit for light source
19th, the dsp controller 20, the memory cell 21, the communication unit 22, CMOS camera control circuit 23 are electrically connected
Connect, the shell 1 is provided with catching groove 6, signal lamp 7, multiple interfaces and radiator window 17, the catching groove 6 is arranged on 1 liang of the shell
Side, the radiator window 17 is arranged on the side of dsp controller 20, and the side of the interface is provided with label 27, the interface bag
Include power interface 24, data transmission interface 25 and preliminary data coffret 26.
In summary, in the present embodiment, according to the finger vena figure based on near-infrared LED array light source of the present embodiment
As the finger vein image acquisition device based on near-infrared LED array light source that harvester, the present embodiment are provided, mesh is solved
Image conformity that preceding finger vein image acquisition system is present is poor, intensity of illumination not enough, finger, finger can not be completely covered
Easily occur shake and cause image irradiation distributing homogeneity poor, the segmentation interface of influence finger areas and background area causes
Vein Verification information is not obvious, the problem of influenceing picture quality, can not only be increased by near-infrared LED array of source and light guide sheet
Plus intensity of illumination, and finger shade can be eliminated, it is tended to near-infrared illumination, make illumination that finger, enhancing figure is completely covered
As uniformity, the fixation hand that can be stablized by finger fixer and the suction tray being arranged in finger fixer and flexible glue basic unit
Refer to, prevent from shaking in finger vena texture gatherer process, make Vein Verification information substantially, be conducive to by infrared filter
Remove background, improve IMAQ quality, by wireless communication antenna and communication unit realize with user's mobile hand-held device without
Line is connected, by setting control button and LCDs in control interface to realize automation mechanized operation, by setting rubber-sole
Seat and radiator window, can not only ensure the stabilization of finger vein image acquisition device, moreover it is possible to realize that finger vein image acquisition is filled
The radiating put, it is ensured that its is stable.
It is described above, only the utility model further embodiment, but protection domain of the present utility model do not limit to
In this, any one skilled in the art is in scope disclosed in the utility model, according to of the present utility model
Technical scheme and its design are subject to equivalent substitution or change, belong to protection domain of the present utility model.
Claims (10)
1. a kind of finger vein image acquisition device based on near-infrared LED array light source, including shell (1), top cover (2) and rubber
Glue base (3), the top cover (2) is arranged on above the shell (1), it is characterised in that：Provided with luminous single in the shell (1)
First (8), near-infrared LED array of source (9), light guide sheet (10), finger fixer (11), infrared filter (12) and CMOS shootings
Head (13), the near-infrared LED array of source (9) electrically connects with the luminescence unit (8)；The bottom of the CMOS camera (13)
Portion provided with power save unit (18), control circuit for light source (19), dsp controller (20), memory cell (21), communication unit (22) and
CMOS camera control circuit (23), the power save unit (18), the control circuit for light source (19), the memory cell
(21), the communication unit (22), CMOS camera control circuit (23) are electrically connected with the dsp controller (20)；
The light guide sheet (10) is arc light guide sheet, and the arc opening of the arc light guide sheet is towards the finger fixer (11), institute
State and a plurality of curved surface groove is provided with finger fixer (11), the surface of the curved surface groove is provided with flexible glue basic unit, the flexible glue basic unit
Provided with suction tray (28), the suction tray (28) is connected with absorption motor (29), and the absorption motor (29) controls with the DSP
Device (20) is electrically connected.
2. a kind of finger vein image acquisition device based on near-infrared LED array light source according to claim 1, it is special
Levy and be：The luminescence unit (8) electrically connects with a transformer, and the light guide sheet (10) is arranged on the near-infrared LED light source
Between array (9) and the finger fixer (11), the infrared filter (12) be arranged on the finger fixer (11) with
Between the CMOS camera (13).
3. a kind of finger vein image acquisition device based on near-infrared LED array light source according to claim 1, it is special
Levy and be：The luminescence unit (8) is electrically connected by control circuit for light source (19) with the dsp controller (20), the CMOS
Camera (13) controls circuit (23) to be electrically connected with the dsp controller (20) by CMOS camera.
4. a kind of finger vein image acquisition device based on near-infrared LED array light source according to claim 1, it is special
Levy and be：The power save unit (18) controls circuit (23) with the control circuit for light source (19), the CMOS camera respectively
Electrical connection, the power save unit (18) controls the control circuit for light source (19) and the CMOS camera to control circuit respectively
(23), and when being used under the luminescence unit (8), the CMOS camera (13) off working state electricity-saving function is realized.
5. a kind of finger vein image acquisition device based on near-infrared LED array light source according to claim 1, it is special
Levy and be：The memory cell (21), the communication unit (22) are electrically connected with the power save unit (18), and the storage is single
First (21) are used to store the finger venous image after collection and processing, the communication unit (22) and wireless communication antenna (4) electricity
Connection, for being connected with customer mobile terminal, the wireless communication antenna (4) is arranged on the top cover (2).
6. a kind of finger vein image acquisition device based on near-infrared LED array light source according to claim 1, it is special
Levy and be：The light guide sheet (10) is integrally formed setting by high penetration optical material, and light guide sheet (10) thickness is uniform, described
Light guide sheet (10) is arc glass.
7. a kind of finger vein image acquisition device based on near-infrared LED array light source according to claim 1, it is special
Levy and be：The top cover (2) is provided with switch (5), the switch (5) and the power save unit (18), the dsp controller
(20) electrically connect, the switch (5) controls the startup and closing of the dsp controller (20).
8. a kind of finger vein image acquisition device based on near-infrared LED array light source according to claim 1, it is special
Levy and be：Frosting is provided between the curved surface groove and the flexible glue basic unit, the flexible glue basic unit is silica gel.
9. a kind of finger vein image acquisition device based on near-infrared LED array light source according to claim 1, it is special
Levy and be：The shell (1), which is provided with control interface (14), the control interface (14), is provided with control button (15) and liquid crystal
Display screen (16), the control button (15) respectively with the power save unit (18), the control circuit for light source (19), described
Dsp controller (20), the memory cell (21), the communication unit (22), CMOS camera control circuit (23) electricity
Connection.
10. a kind of finger vein image acquisition device based on near-infrared LED array light source according to claim 1, its
It is characterised by：The shell (1) is provided with catching groove (6), signal lamp (7), multiple interfaces and radiator window (17), the catching groove (6)
The shell (1) both sides are arranged on, the radiator window (17) is arranged on the dsp controller (20) side, the one of the interface
Side is provided with label (27), and the interface includes power interface (24), data transmission interface (25) and preliminary data coffret
(26)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720230027.9U CN206557801U (en) | 2017-03-10 | 2017-03-10 | A kind of finger vein image acquisition device based on near-infrared LED array light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720230027.9U CN206557801U (en) | 2017-03-10 | 2017-03-10 | A kind of finger vein image acquisition device based on near-infrared LED array light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206557801U true CN206557801U (en) | 2017-10-13 |
Family
ID=60362799
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720230027.9U Expired - Fee Related CN206557801U (en) | 2017-03-10 | 2017-03-10 | A kind of finger vein image acquisition device based on near-infrared LED array light source |
Country Status (1)
| Country | Link |
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| CN (1) | CN206557801U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107909028A (en) * | 2017-11-14 | 2018-04-13 | 刘新堂 | A kind of identification terminal based on finger vein |
| CN108416335A (en) * | 2018-04-16 | 2018-08-17 | 西安电子科技大学 | A kind of adjustable infrared LED of brightness refers to venous collection device |
| CN108986283A (en) * | 2018-07-31 | 2018-12-11 | 深圳市奈士迪技术研发有限公司 | A kind of high-precision contact personal recognition smart lock |
-
2017
- 2017-03-10 CN CN201720230027.9U patent/CN206557801U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107909028A (en) * | 2017-11-14 | 2018-04-13 | 刘新堂 | A kind of identification terminal based on finger vein |
| CN108416335A (en) * | 2018-04-16 | 2018-08-17 | 西安电子科技大学 | A kind of adjustable infrared LED of brightness refers to venous collection device |
| CN108986283A (en) * | 2018-07-31 | 2018-12-11 | 深圳市奈士迪技术研发有限公司 | A kind of high-precision contact personal recognition smart lock |
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Granted publication date: 20171013 Termination date: 20180310 |