CN211155813U - Finger vein recognition module - Google Patents
Finger vein recognition module Download PDFInfo
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- CN211155813U CN211155813U CN201920968601.XU CN201920968601U CN211155813U CN 211155813 U CN211155813 U CN 211155813U CN 201920968601 U CN201920968601 U CN 201920968601U CN 211155813 U CN211155813 U CN 211155813U
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- finger
- finger vein
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- groove
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- 210000003462 vein Anatomy 0.000 title claims abstract description 92
- 230000003287 optical effect Effects 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000000282 nail Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000004905 finger nail Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
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Abstract
The utility model discloses a finger vein identification module. The utility model discloses a finger vein discernment module, first casing is connected with the second casing is detachable, through with light emitting component, first light filter, a circuit board, image acquisition unit and light guide plate are all installed on first casing, and the position structural design between a plurality of components is compact, structural design's optimization has been realized to whole finger vein discernment module in limited space, the whole size and size of finger vein discernment module has been reduced, and simple structure, the internal component is dismantled in the installation of being convenient for, in addition, finger groove slope sets up, the length in finger groove has been increased in effectual space, both can ensure to hold down the finger and effectively support the finger, the user has good use and experiences the sense, be particularly useful for the longer user of nail, and the optimal design in finger groove space has been realized.
Description
Technical Field
The utility model relates to a finger vein recognition technical field especially relates to a finger vein identification module.
Background
The biometric identification technology is a safe and convenient identity identification technology, and the biometric identification technology commonly used at present comprises fingerprint identification, face identification, iris identification, finger vein identification, palm print identification and the like. The finger vein recognition technology has the following advantages: 1. the application range is wide, and almost all people can identify the finger veins; 2. the stability is good, the vein characteristics are hardly changed, and the influence of external environmental factors and the finger surface cleanliness is avoided; 3. the deception resistance is strong, and only living bodies can be verified; and so on.
Therefore, the finger vein recognition technology has been widely applied to daily life of people. However, the existing finger vein recognition module has a large overall size and unreasonable internal structure design, and cannot meet the miniaturization application of the finger vein recognition module.
SUMMERY OF THE UTILITY MODEL
The utility model provides a finger vein identification module to solve the unreasonable, the great technical problem of whole size and dimension of internal structure design of current finger vein identification module.
According to an aspect of the present invention, a finger vein recognition module is provided, which includes a first housing, a second housing, a light emitting device, a first optical filter, an image collecting unit, a circuit board, and a light guide plate, wherein the first housing is detachably connected to the second housing, and the light emitting device, the first optical filter, the circuit board, the image collecting unit, and the light guide plate are all mounted on the first housing;
The front of the first shell is provided with a finger groove used for accommodating a finger and obliquely arranged, the bottom of the finger groove is partially hollow, the light emitting element is located above the finger groove and used for emitting near infrared light to irradiate the finger groove, the first light filter is located between the light emitting element and the finger groove and used for playing a role in filtering, the light guide plate is located at the hollow part at the bottom of the finger groove and arranged in parallel with the finger groove, the image acquisition unit is located below the light guide plate and electrically connected with the circuit board, the light guide plate is used for conducting finger vein images formed by the finger irradiating the finger located in the finger groove to the image acquisition unit, the image acquisition unit is used for acquiring the finger vein images and transmitting the finger vein images to the circuit board, and the circuit board is used for carrying out finger vein identification based on the finger vein images.
Further, the inclination angle of the finger groove is 40-50 degrees.
Further, the bilateral symmetry of pointing the groove is provided with the arch that is used for supporting finger and slope setting, bellied inclination is unanimous with the inclination in pointing the groove.
Further, the top of the finger groove is provided with a blind spot for guiding the user to correctly place the finger.
Furthermore, the finger vein recognition module further comprises an induction unit used for inducing whether the finger is placed in place, the induction unit is installed on the back face of the first shell and located at the position of the blind spot, the induction unit and the light-emitting element are connected with the circuit board, the induction unit is used for generating a signal to be transmitted to the circuit board after inducing that the finger is placed in place, and the circuit board is used for controlling the light-emitting element and the image acquisition unit to be started.
Further, the sensing unit is one or more of an infrared sensor, a pressure sensor and a touch screen.
Furthermore, the finger vein identification module also comprises a second optical filter for filtering and sealing, wherein the second optical filter is arranged at the hollow-out position at the bottom of the finger groove, is positioned above the light guide plate and is parallel to the light guide plate.
Further, the finger vein recognition module further comprises a mounting rack, the mounting rack is installed on the first shell, and the image acquisition unit is installed on the mounting rack.
Further, the finger vein identification module is still including the pilot lamp that is used for sending the light suggestion, the pilot lamp is installed on first casing and with circuit board electric connection, the circuit board is used for controlling the luminous state of pilot lamp according to the finger vein identification result.
Further, the first housing and the second housing are connected by a screw connection, a snap connection or a hinge connection.
The utility model discloses following beneficial effect has:
The utility model discloses a finger vein discernment module, through with light emitting component, first light filter, the circuit board, image acquisition unit and light guide plate are all installed on first casing, and the position structural design between a plurality of components is compact, structural design's optimization has been realized to whole finger vein discernment module in limited space, the whole size and dimension of finger vein discernment module has been reduced, can satisfy miniaturized application, and simple structure, the internal component is dismantled in the installation of being convenient for, in addition, finger groove slope sets up, the length in finger groove has been increased in effectual space, both can ensure to hold down the finger and effectively support the finger, the user has good use and experiences the sense, be particularly useful for the longer user of nail, and the optimal design in finger groove space has been realized.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
Fig. 1 is an exploded schematic view of a finger vein recognition module according to a preferred embodiment of the present invention.
Fig. 2 is a schematic front structural view of the first housing portion of the finger vein recognition module according to the preferred embodiment of the present invention.
Fig. 3 is a schematic back structural view of the first housing portion of the finger vein recognition module according to the preferred embodiment of the present invention.
The reference numbers illustrate:
11. A first housing; 12. a second housing; 13. a light emitting element; 14. a first optical filter; 15. a second optical filter; 16. a circuit board; 17. an image acquisition unit; 18. a mounting frame; 19. a sensing unit; 20. a light guide plate; 111. a finger groove; 112. a protrusion; 113. blind spots.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.
As shown in fig. 1, 2 and 3, a preferred embodiment of the present invention provides a finger vein recognition module, used for finger vein recognition, comprises a first shell 11, a second shell 12, a light-emitting element 13, a first optical filter 14, a circuit board 16, an image acquisition unit 17 and a light guide plate 20, the first housing 11 and the second housing 12 are detachably connected to form a closed space inside the two, it is understood that the detachable connection of the first housing 11 and the second housing 12 includes a fingerprint connection, a snap connection or a hinge connection, the light emitting element 13, the first filter 14, the circuit board 16, the image capturing unit 17, and the light guide plate 20 are all located in the enclosed space, specifically, the light emitting element 13, the first filter 14, the circuit board 16, the image capturing unit 17, and the light guide plate 20 are all mounted on the first housing 11. The front surface of the first housing 11 is provided with a finger groove 111 for accommodating a finger, the finger groove 111 is arranged obliquely, so that the space of the finger groove 111 is reduced while the finger is sufficiently accommodated, and the size of the finger vein recognition module is reduced. The inclination angle of the finger groove 111 is 40-50 degrees, preferably 46 degrees, under the inclination angle of the finger groove 111, the lower finger can be contained and effectively supported, a user has good use experience, the finger groove is particularly suitable for users with long fingernails, the space of the finger groove 111 is optimized, and the size of the finger vein recognition module is reduced. The light emitting element 13 is positioned above the finger groove 111 and is used for emitting near infrared light to the finger groove 111, the light emitting element 13 is an infrared bulb or an infrared light emitting diode, and the light emitting element 13 can emit the near infrared light between 760nm and 1100nm to the finger in the finger groove 111 so as to form a finger vein image. The first filter 14 is located between the light emitting element 13 and the finger groove 111 and is used for filtering, and the first filter 14 is a near infrared filter which can cut off visible light with a wavelength less than 760nm and only allow near infrared light between 760nm and 1100nm to pass through. The bottom of the finger groove 111 is partially hollowed out so as to allow the finger vein image formed by irradiating the finger with near infrared light to pass through. The light guide plate 20 is located at the hollow part at the bottom of the finger groove 111 and is used for guiding finger vein images, the light guide plate 20 is arranged in parallel with the finger groove 111, and the image conduction effect is best. The image acquisition unit 17 is located below the light guide plate 20 and electrically connected with the circuit board 16, the light guide plate 20 transmits a finger vein image formed by irradiating a finger with near infrared light to the visual field of the image acquisition unit 17, the image acquisition unit 17 is used for acquiring the finger vein image and transmitting the finger vein image to the circuit board 16, and the circuit board 16 performs finger vein analysis and identification according to the received finger vein image. It is understood that the image capturing unit 17 is a camera, such as a CCD camera, a CMOS camera, etc., and the circuit board 16 is integrally provided with a processing chip.
The utility model discloses a finger vein discernment module, through with light emitting component 13, first light filter 14, circuit board 16, image acquisition unit 17 and light guide plate 20 are all installed on first casing 11, and the position structural design between a plurality of components is compact, structural design's optimization has been realized to whole finger vein discernment module in limited space, the whole size and size of finger vein discernment module has been reduced, and moreover, the internal component is dismantled in the installation of being convenient for, in addition, the slope of finger groove 111 sets up, both can ensure to hold down the finger and effectively support the finger, the user has good use and experiences the sense, be particularly useful for the longer user of nail, and the optimal design in finger groove 111 space has been realized.
It can be understood that, the two sides of the finger groove 111 are symmetrically provided with the protrusions 112 for supporting fingers and arranged obliquely, when a user puts a finger into the finger groove 111, the protrusions 112 can play a role of supporting the finger, so as to prevent the user's finger from directly pressing on the light guide plate 20 to affect the service life of the light guide plate 20.
It can be understood that the top of the finger groove 111 is further provided with a blind spot 113 for guiding the user to correctly place the finger, when the front end of the finger of the user contacts the blind spot 113, the finger is placed in place, the finger can be illuminated by the near-infrared light to obtain a clear and accurate finger vein image, and the accuracy of finger vein identification is ensured. The blind spot 113 may be a bump or a recess. Preferably, the finger vein recognition module further comprises a sensing unit 19 for sensing whether a finger is placed in place, the sensing unit 19 is installed on the back of the first housing 11 and located at the position of the blind spot 113, and both the sensing unit 19 and the light emitting element 13 are connected to the circuit board 16. When the user presses the blind spot 113, the sensing unit 19 can sense the pressing action of the finger and generate a feedback signal to be transmitted to the circuit board 16, and the circuit board 16 controls the light emitting element 13 and the image capturing unit 17 to start according to the received feedback signal. The sensing unit 19 may be one or more of an infrared sensor, a pressure sensor, and a touch screen. When the user does not press the blind spot 113, the sensing unit 19 cannot sense the pressing action of the finger, the circuit board 16 controls the light emitting element 13 and the image collecting unit 17 to keep dormant, so that the power saving effect can be achieved when the finger vein recognition module is in a standby state, and the automatic control is realized.
It is understood that, as a preferred option, the finger vein recognition module further includes a second optical filter 15 for filtering and sealing, and the second optical filter 15 is installed at the hollow portion at the bottom of the finger groove 111 and is located above the light guide plate 20 and is arranged in parallel with the light guide plate 20. The second optical filter 15 is also a near-infrared optical filter, and can cut off visible light with a wavelength less than 760nm and only allow near-infrared light between 760nm and 1100nm to pass through, so that the visible light can be cut off outside the light guide plate 20, and the influence of the visible light on the formed finger vein image is prevented.
In addition, the finger vein recognition module further comprises a mounting rack 18, the mounting rack 18 is installed on the first shell 11, and the image acquisition unit 17 is installed on the mounting rack 18, so that the image acquisition unit 17 can be conveniently installed and disassembled.
It can be understood that the first housing 11 and/or the second housing 12 are further provided with a mark, so as to facilitate production management of the plurality of finger vein identification modules, and the mark contains basic information of each finger vein identification module, such as a product number, a product status, a delivery location, and the like. The identification can be a bar code, a two-dimensional code or an RFID module, the identification of each finger vein identification module can be scanned through the corresponding scanning identification device to acquire the information of each finger vein identification module, for example, the number of products of the finger vein identification module, whether the product state is good or defective, where the product is delivered, and the like, so that the production management of the finger vein identification module is facilitated.
It can be understood that the finger vein recognition module further includes an indicator light (not shown) for emitting a light prompt, the indicator light is installed on the outer wall of the first housing 11 and electrically connected to the circuit board 16, the circuit board 16 controls the light emitting state of the indicator light according to the finger vein recognition result, for example, the circuit board 16 controls the light emitting color of the indicator light according to the finger vein recognition result, when the finger vein recognition is correct, the circuit board 16 controls the indicator light to emit green light, and when the finger vein recognition is incorrect, the circuit board 16 controls the indicator light to emit red light; alternatively, the circuit board 16 controls the lighting frequency of the indicator lamp according to the result of the finger vein recognition.
It can be understood that the finger vein recognition module further includes a voice prompt component (not shown), such as a speaker or a sound, for sending a voice prompt, the voice prompt component is mounted on the first housing 11 and electrically connected to the circuit board 16, the circuit board 16 controls the voice prompt component to send out a corresponding voice prompt sound according to the result of finger vein recognition, for example, when the finger vein recognition is correct, the circuit board 16 controls the voice prompt component to send out "correct recognition", and when the finger vein recognition is wrong, the circuit board 16 controls the voice prompt component to send out "wrong recognition" and please retry.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A finger vein recognition module, which is characterized in that,
The LED display panel comprises a first shell (11), a second shell (12), a light-emitting element (13), a first optical filter (14), an image acquisition unit (17), a circuit board (16) and a light guide plate (20), wherein the first shell (11) is detachably connected with the second shell (12), and the light-emitting element (13), the first optical filter (14), the circuit board (16), the image acquisition unit (17) and the light guide plate (20) are all arranged on the first shell (11);
The front surface of the first shell (11) is provided with a finger groove (111) which is used for accommodating fingers and is obliquely arranged, the bottom part of the finger groove (111) is hollowed out, the light-emitting element (13) is positioned above the finger groove (111) and is used for emitting near-infrared light to irradiate the finger groove (111), the first optical filter (14) is positioned between the light-emitting element (13) and the finger groove (111) and is used for playing a role of filtering light, the light guide plate (20) is positioned at the hollowed-out part at the bottom of the finger groove (111) and is arranged in parallel with the finger groove (111), the image acquisition unit (17) is positioned below the light guide plate (20) and is electrically connected with the circuit board (16), the light guide plate (20) is used for transmitting finger vein images formed by the fingers irradiating the near-infrared light in the finger groove (111) to the image acquisition unit (17), and the image acquisition unit (17) is used for acquiring the finger vein images and transmitting the finger vein images to the, the circuit board (16) is used for finger vein recognition based on the finger vein image.
2. The finger vein identification module of claim 1,
The inclination angle of the finger groove (111) is 40-50 degrees.
3. The finger vein identification module of claim 2,
The bilateral symmetry of pointing groove (111) is provided with and is used for supporting protruding (112) that the finger just inclines to set up, the inclination of protruding (112) is unanimous with the inclination of pointing groove (111).
4. The finger vein identification module of claim 1,
The top of the finger groove (111) is provided with a blind spot (113) for guiding a user to correctly place fingers.
5. The finger vein identification module of claim 4,
The finger vein recognition module further comprises a sensing unit (19) used for sensing whether a finger is placed in place, the sensing unit (19) is installed on the back face of the first shell (11) and located at the position of the blind spot (113), the sensing unit (19) and the light-emitting element (13) are connected with the circuit board (16), the sensing unit (19) is used for generating a signal to be transmitted to the circuit board (16) after the finger is placed in place by sensing, and the circuit board (16) is used for controlling the light-emitting element (13) and the image acquisition unit (17) to be started.
6. The finger vein identification module of claim 5,
The sensing unit (19) is one or more of an infrared sensor, a pressure sensor and a touch screen.
7. The finger vein identification module of claim 1,
The finger vein recognition module further comprises a second optical filter (15) for filtering and sealing, wherein the second optical filter (15) is installed at the hollow-out position at the bottom of the finger groove (111), is positioned above the light guide plate (20) and is arranged in parallel with the light guide plate.
8. The finger vein identification module of claim 1,
The finger vein recognition module further comprises a mounting rack (18), the mounting rack (18) is installed on the first shell (11), and the image acquisition unit (17) is installed on the mounting rack (18).
9. The finger vein identification module of claim 1,
The finger vein recognition module further comprises an indicator light used for sending a light prompt, the indicator light is installed on the first shell (11) and electrically connected with the circuit board (16), and the circuit board (16) is used for controlling the light emitting state of the indicator light according to the finger vein recognition result.
10. The finger vein identification module of claim 1,
The first shell (11) and the second shell (12) are connected through threads, a snap connection or a hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920968601.XU CN211155813U (en) | 2019-06-21 | 2019-06-21 | Finger vein recognition module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920968601.XU CN211155813U (en) | 2019-06-21 | 2019-06-21 | Finger vein recognition module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211155813U true CN211155813U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920968601.XU Active CN211155813U (en) | 2019-06-21 | 2019-06-21 | Finger vein recognition module |
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| Country | Link |
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| CN (1) | CN211155813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113762071A (en) * | 2021-07-26 | 2021-12-07 | 深圳市鑫保泰技术有限公司 | Finger vein recognition device |
-
2019
- 2019-06-21 CN CN201920968601.XU patent/CN211155813U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113762071A (en) * | 2021-07-26 | 2021-12-07 | 深圳市鑫保泰技术有限公司 | Finger vein recognition device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221201 Address after: Building 14, Phase I, Changsha CEC Software Park, No. 39, Jianshan Road, Changsha Hi tech Development Zone, Changsha, Hunan 410011 Patentee after: Wisdom Eye Technology Co.,Ltd. Address before: 518052 Unit F, Block B, 19/F, Building 6, Baoneng Science Park, Qinghu Community, Longhua Street, Longhua District, Shenzhen, Guangdong Patentee before: SHENZHEN MAIDI TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: No. 205, Building B1, Huigu Science and Technology Industrial Park, No. 336 Bachelor Road, Bachelor Street, Yuelu District, Changsha City, Hunan Province, 410000 Patentee after: Wisdom Eye Technology Co.,Ltd. Country or region after: China Address before: Building 14, Phase I, Changsha CEC Software Park, No. 39, Jianshan Road, Changsha Hi tech Development Zone, Changsha, Hunan 410011 Patentee before: Wisdom Eye Technology Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |