CN217008206U - Fingerprint finger vein bimodal authentication device - Google Patents
Fingerprint finger vein bimodal authentication device Download PDFInfo
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- CN217008206U CN217008206U CN202220813562.8U CN202220813562U CN217008206U CN 217008206 U CN217008206 U CN 217008206U CN 202220813562 U CN202220813562 U CN 202220813562U CN 217008206 U CN217008206 U CN 217008206U
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- 210000003462 vein Anatomy 0.000 title claims abstract description 43
- 230000002902 bimodal effect Effects 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 82
- 230000005540 biological transmission Effects 0.000 claims description 5
- 210000005069 ears Anatomy 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 5
- 238000012795 verification Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 241000463219 Epitheca Species 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000013016 Hypoglycemia Diseases 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002218 hypoglycaemic effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model relates to a fingerprint finger vein bimodal authentication device, comprising: the detection device comprises a shell, wherein a detection groove and a light-transmitting plate are respectively arranged on the surface of the shell along the same direction, and one end, close to the light-transmitting plate, of the detection groove inclines to one side of the light-transmitting plate to form an inclined plane; the capacitance detection module is arranged on the inclined plane; finger vein detection module, including image acquisition module and infrared light source, wherein, the image acquisition module set up in the casing that the light-passing board corresponds, infrared light source set up in detect the inslot and with the other end that the slope plane is relative works as when the finger is put into and is detected the groove, infrared light source is at least to not putting into the partial emission infrared light source who detects the groove in same root finger. That is to say, the authentication device of the application can simultaneously carry out the identity verification of the fingerprint and the finger vein, can have better safety, can also effectively avoid respective defects of the fingerprint or the finger vein, and has good user experience.
Description
Technical Field
The utility model relates to the technical field of biological feature identification, in particular to a fingerprint and finger vein bimodal authentication device.
Background
At present, personal identity authentication technology based on human body biological characteristics is relatively popular, such as fingerprint identification, face identification, iris identification and the like, but the personal identity authentication technology has the defects of insufficient characteristic stability, easy stealing and counterfeiting of information and poor safety. For example, in the fingerprint identification technology, about 4% of users cannot normally register and identify, and fingerprints are also very easy to steal and counterfeit; the vein authentication technology is characterized in that vein texture information inside a human body is used as personal identity characteristics, so that the vein authentication technology can hardly be stolen and forged, and the safety of personal identity authentication can be greatly improved; however, the finger vein is also easily affected by body temperature, the verification is easily failed when the body temperature is low, and about 1% of users cannot normally register and identify due to hypoglycemia or blood vessel hyperfine and the like; therefore, the existing technology based on single fingerprint or finger vein authentication cannot effectively overcome various existing defects.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above drawbacks of the prior art, the present invention provides a fingerprint and finger vein dual-mode authentication device to solve the above problems in the background art.
The technical scheme adopted by the utility model for solving the problems in the prior art is as follows: a fingerprint finger vein bimodal authentication device comprises:
the detection device comprises a shell, wherein a detection groove and a light-transmitting plate are respectively arranged on the surface of the shell along the same direction, and one end, close to the light-transmitting plate, of the detection groove is inclined towards one side of the light-transmitting plate to form an inclined plane;
the capacitance detection module is arranged on the inclined plane;
the finger vein detection module comprises an image acquisition module and an infrared light source, wherein the image acquisition module is arranged in the shell corresponding to the light-transmitting plate, the infrared light source is arranged in the detection groove and at the other end opposite to the inclined plane, and when the finger is placed in the detection groove, the infrared light source at least emits infrared light sources to the part, which is not placed in the detection groove, of the same finger; and
and the authentication module is respectively connected with the capacitance detection module, the image acquisition module and the infrared light source.
That is to say, in this application, can realize detecting fingerprint and finger vein to the finger through being provided with electric capacity detection module and finger vein module, carry out fingerprint and finger vein's authentication simultaneously, can have better security and also can effectively avoid fingerprint or the respective defect of finger vein, have fine user experience. In addition, adopt electric capacity detection module to detect a part that is close to the fingertip in same root finger in this application, and finger vein module detects other parts except the fingertip in same root finger, can realize putting into the finger and detect just can detect fingerprint and finger vein simultaneously behind the detection groove, and detection efficiency is high.
In a preferred embodiment of the present invention, the infrared light source is disposed in the detection groove in an inclined manner at the other end opposite to the inclined plane so that the infrared light source can irradiate a portion of the finger not placed in the detection groove.
As a preferable aspect of the present invention, the image assembly module is obliquely disposed inside the housing corresponding to the light-transmitting plate, so that the image assembly module can acquire an image of a portion of a finger that is not placed in the detection groove through the light-transmitting plate.
As a preferable scheme of the utility model, the light-transmitting plate adopts an infrared filter.
As a preferable aspect of the present invention, the case includes an upper case and a lower case coupled to each other; wherein,
the detection groove and the light-transmitting plate are respectively arranged on the upper shell along the same direction, a capacitance detection hole for the capacitance detection module to penetrate is formed in an inclined plane of the detection groove close to one end of the light-transmitting plate, and a light-transmitting hole for the infrared light source to penetrate is formed in one end of the detection groove far away from the light-transmitting plate;
a first inclined plate is arranged on the lower shell in a region corresponding to the light transmitting hole, a second inclined plate is arranged on the lower shell in a region corresponding to the capacitance detection hole, and a third inclined plate is arranged on the lower shell in a region corresponding to the light transmitting plate; and
the infrared light source is installed on the first inclined plate, the capacitance detection module is installed on the second inclined plate, and the image acquisition module is installed on the third inclined plate.
As a preferred embodiment of the present invention, the upper case is provided with an image collecting hole, the light transmitting plate is disposed on the image collecting hole, and the image collecting module collects an image of a portion of the finger not placed in the detection groove through the image collecting hole.
As a preferable aspect of the present invention, mounting ears are provided at both sides of the lower case.
As a preferred scheme of the present invention, the authentication module adopts an M4 embedded module.
Drawings
FIG. 1 is a schematic structural diagram of a fingerprint and finger vein dual-mode authentication device according to the present invention;
FIG. 2 is a schematic structural diagram of a lower shell of the fingerprint finger vein dual-mode authentication device according to the present invention;
fig. 3 is a schematic structural diagram of an upper shell in the fingerprint finger vein dual-mode authentication device according to the present invention.
Reference numbers in the figures:
100. a housing; 110. an upper shell; 120. a lower case; 130. a detection tank; 140. a first inclined plate; 150. a second inclined plate; 160. a third inclined plate; 170. a capacitance detection hole; 180. a light-transmitting hole; 190. an image capture aperture;
200. a capacitance detection module;
300. an authentication module;
400. an image acquisition module; 500. an infrared light source; 600. a light-transmitting plate; 700. and (5) mounting ears.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 3, a fingerprint and finger vein dual-mode authentication device includes a housing 100, a capacitance detection module 200, a finger vein detection module, and an authentication module 300.
The surface of the housing 100 is provided with a detection groove 130 and a transparent plate 600 along the same direction, one end of the detection groove 130 close to the transparent plate 600 is inclined toward one side of the transparent plate 600 to form an inclined plane, and the capacitance detection module 200 is disposed on the inclined plane.
Finger vein detects module, including image acquisition module 400 and infrared light source 500, wherein, image acquisition module 400 set up in the casing 100 that light-passing board 600 corresponds, infrared light source 500 set up in detect in the groove 130 and with the other end that the inclined plane is relative, work as when the finger is put into and is detected the groove 130, infrared light source 500 is at least to not putting into the part transmission infrared light source 500 that detects groove 130 in same finger.
The authentication module 300 is respectively connected to the capacitance detection module 200, the image acquisition module 400 and the infrared light source 500, and is configured to respectively send and receive signals of the capacitance detection module 200, the image acquisition module 400 and the infrared light source 500. The authentication module 300 can adopt an M4 embedded module, the authentication module 300 is reliable in performance and low in cost, and the ultra-low power consumption is very suitable for being installed in various intelligent locks such as an intelligent lock and a portable case lock.
During the in-service use, put into detection groove 130 with the finger and the fingerprint position of finger is close to the slope plane and makes the fingerprint can be located electric capacity detection module 200, make electric capacity detection module 200 can detect the finger fingerprint that is located on electric capacity detection module 200, and also can guide user's finger along the slope direction slope of slope plane, meanwhile, infrared light source 500 is to not putting into the part transmission infrared light source 500 who detects groove 130 in the same finger, image acquisition module 400 is then through light-passing board 600 in step to not putting into the part that detects groove 130 in the finger and carry out image acquisition, then authentication module 300 carries out fingerprint and finger vein's authentication simultaneously according to the image that electric capacity detection module 200 detected fingerprint and image acquisition module 400 gathered.
That is to say, in this application, can realize detecting fingerprint and finger vein to the finger through being provided with electric capacity detection module 200 and finger vein module, carry out fingerprint and finger vein's authentication simultaneously, can have better security and also can effectively avoid fingerprint or the respective defect of finger vein, have fine user experience. In addition, adopt electric capacity detection module 200 to detect a part that is close to the fingertip in the same finger in this application, and finger vein module detects other parts except the fingertip in the same finger, can realize putting into the finger and detect just can detect fingerprint and finger vein simultaneously behind the detection groove 130, and detection efficiency is high.
Further, the infrared light source 500 is obliquely disposed at the other end of the detection slot 130 opposite to the inclined plane, so that the infrared light source 500 can irradiate a portion of the finger not placed in the detection slot 130.
The image assembly module is obliquely disposed inside the housing 100 corresponding to the transparent plate 600, so that the image assembly module can capture an image of a portion of a finger not placed in the detection slot 130 through the transparent plate 600.
It can be understood that when a finger is placed in the detection slot 130 and a portion of the fingerprint of the finger is attached to the inclined plane, the finger of the user is also inclined along the inclined direction of the inclined plane, so that the infrared light source 500 and the image assembly module disposed on the housing 100 can irradiate and collect an image on the portion of the finger not placed in the detection slot 130 at an angle, and therefore, in order to enable the infrared light source 500 and the image assembly module to incline the finger for image collection, the infrared light source 500 and the image assembly module need to be inclined at a corresponding angle.
Further, combine fig. 2 and fig. 3, casing 100 includes interconnect's epitheca 110 and inferior valve 120, wherein, detect groove 130 and light-passing board 600 respectively along the same direction set up in on the epitheca 110, just detect that groove 130 is close to be provided with the confession on the slope plane of light-passing board 600 one end electric capacity detection hole 170 that electric capacity detection module 200 saw through, it keeps away from to detect groove 130 the one end of light-passing board 600 is provided with the confession the light trap 180 that infrared light source 500's light saw through.
Referring to fig. 2, a first inclined plate 140 is disposed on the lower case 120 corresponding to the area of the light transmission hole 180, a second inclined plate 150 is disposed on the lower case 120 corresponding to the area of the capacitance detection hole 170, a third inclined plate 160 is disposed on the lower case 120 corresponding to the area of the light transmission plate 600, the infrared light source 500 is mounted on the first inclined plate 140, the capacitance detection module 200 is mounted on the second inclined plate 150, and the image acquisition module 400 is mounted on the third inclined plate 160.
In actual use, the infrared light source 500 is mounted on the first inclined plate 140 and emits infrared light to the finger through the light-transmitting hole 180; after the capacitance detection module 200 is mounted on the second inclined plate 150, the detection part of the capacitance detection module 200 passes through the capacitance detection hole 170 to contact with a finger; after the image capturing module 400 is mounted on the third inclined plate 160, the image capturing module 400 captures an image of a finger through the transparent plate 600.
Preferably, in order to make the structure of the authentication apparatus more compact, the authentication module 300 may be disposed on the third inclined plate 160, and then the image capture module 400 may be disposed on the authentication module 300.
Further, referring to fig. 3, an image capturing hole 190 is formed in the upper case 110, the light-transmitting plate 600 is disposed on the image capturing hole 190, and the image capturing module 400 captures an image of a portion of the finger that is not placed in the detection groove 130 through the image capturing hole 190. The transparent plate 600 may be an infrared filter for filtering infrared light after irradiating the finger, so that the image acquisition module 400 can better acquire the image of the finger and reduce the influence of the infrared light.
In addition, in order to facilitate the installation of the authentication module 300, installation ears 700 may be further provided at both sides of the lower case 120.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. 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 (8)
1. A fingerprint finger vein bimodal authentication device is characterized by comprising:
the detection device comprises a shell, wherein a detection groove and a light-transmitting plate are respectively arranged on the surface of the shell along the same direction, and one end, close to the light-transmitting plate, of the detection groove is inclined towards one side of the light-transmitting plate to form an inclined plane;
the capacitance detection module is arranged on the inclined plane;
the finger vein detection module comprises an image acquisition module and an infrared light source, wherein the image acquisition module is arranged in the shell corresponding to the light-transmitting plate, the infrared light source is arranged in the detection groove and at the other end opposite to the inclined plane, and when a finger is placed in the detection groove, the infrared light source at least emits infrared light sources to the part, which is not placed in the detection groove, of the same finger; and
and the authentication module is respectively connected with the capacitance detection module, the image acquisition module and the infrared light source.
2. The fingerprint finger vein bimodal authentication device according to claim 1, wherein: the infrared light source is obliquely arranged at the other end, opposite to the inclined plane, in the detection groove, so that the infrared light source can irradiate the part, which is not placed in the detection groove, of the finger.
3. The fingerprint finger vein bimodal authentication device according to claim 1, wherein: the image acquisition module is obliquely arranged inside the shell corresponding to the light-transmitting plate, so that the image acquisition module can acquire images of the part, which is not placed in the detection groove, of the finger through the light-transmitting plate.
4. The fingerprint finger vein bimodal authentication device according to claim 3, wherein: the light-transmitting plate adopts an infrared filter.
5. The fingerprint finger vein bimodal authentication device according to claim 1, wherein: the housing comprises an upper shell and a lower shell which are connected with each other; wherein,
the detection groove and the light-transmitting plate are respectively arranged on the upper shell along the same direction, a capacitance detection hole for the capacitance detection module to penetrate is formed in an inclined plane of the detection groove close to one end of the light-transmitting plate, and a light-transmitting hole for the infrared light source to penetrate is formed in one end of the detection groove far away from the light-transmitting plate;
a first inclined plate is arranged on the lower shell in a region corresponding to the light transmitting hole, a second inclined plate is arranged on the lower shell in a region corresponding to the capacitance detection hole, and a third inclined plate is arranged on the lower shell in a region corresponding to the light transmitting plate; and
the infrared light source is installed on the first inclined plate, the capacitance detection module is installed on the second inclined plate, and the image acquisition module is installed on the third inclined plate.
6. The fingerprint finger vein bimodal authentication device according to claim 5, wherein: the upper shell is provided with an image acquisition hole, the light transmission plate is arranged on the image acquisition hole, and the image acquisition module acquires images of the part, which is not placed in the detection groove, of the finger through the image acquisition hole.
7. The fingerprint finger vein bimodal authentication device according to claim 6, wherein: and mounting ears are arranged on two sides of the lower shell.
8. The fingerprint finger vein bimodal authentication device according to claim 1, characterized in that: the authentication module adopts an M4 embedded module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220813562.8U CN217008206U (en) | 2022-04-08 | 2022-04-08 | Fingerprint finger vein bimodal authentication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220813562.8U CN217008206U (en) | 2022-04-08 | 2022-04-08 | Fingerprint finger vein bimodal authentication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217008206U true CN217008206U (en) | 2022-07-19 |
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ID=82376129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220813562.8U Active CN217008206U (en) | 2022-04-08 | 2022-04-08 | Fingerprint finger vein bimodal authentication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217008206U (en) |
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2022
- 2022-04-08 CN CN202220813562.8U patent/CN217008206U/en active Active
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