Certificate pattern recognition device

Abstract

The utility model discloses a certificate pattern recognition device, which comprises a boss, a light shield, a base, a recognition assembly and a camera module, the boss comprises a first limit position and a second limit position, the light shield is rotatably arranged at the first limit position or the second limit position of the boss, and the base is arranged on the first limit position or the second limit position of the boss. The boss and the light shield are arranged on the base, the identification assembly comprises a prism, a first reflecting mirror, a second reflecting mirror and a light source, the prism, the first reflecting mirror, the second reflecting mirror and the light source are all arranged in the base, the prism is arranged at the top of the base, and the light source is arranged at the bottom of the base. The prism, the first reflecting mirror and the second reflecting mirror are sequentially arranged in a matched mode, the light source is arranged at the position close to the prism, and the camera module is arranged in the base and is arranged relative to the first reflecting mirror and the second reflecting mirror.

Description

Technical Field

[0001] The utility model relates to the technical field of identity recognition, and particularly relates to a certificate and fingerprint recognition device. Background Art

[0002] In various identity authentication and recognition scenarios, such as port entry and exit inspections, visa registration at embassies and consulates, accommodation registration at foreign-related hotels, customs inspections, and collection of passenger information on international flights, when it is necessary to verify documents and fingerprints, the identity recognition devices in the prior art use two camera modules to separately verify fingerprints and documents such as passports. The process is relatively complex, resulting in a relatively large device volume, high transportation, storage, and usage costs. Summary of the Utility Model

[0003] An object of the utility model is to provide a certificate and fingerprint recognition device. The certificate and fingerprint recognition device only requires one camera module to realize fingerprint collection, fingerprint comparison, rapid recognition and collection of various certificates, and can comprehensively recognize various certificates, such as electronic passports, visas, identity cards, Hong Kong and Macau permits, home return permits, driving licenses, two-dimensional codes, one-dimensional codes, etc. It has a small volume, low transportation, storage, and usage costs, is easy to replace and maintain parts, and has a long service life.

[0004] Other advantages and features of the utility model are fully embodied through the following detailed description and can be realized through the combination of means and devices specifically pointed out in the appended claims.

[0005] According to one aspect of the utility model, a certificate and fingerprint recognition device of the utility model that can achieve the foregoing object and other objects and advantages includes:

[0006] A boss, the boss includes a first limiting portion and a second limiting portion;

[0007] A light shield, the light shield is rotatably arranged at the first limiting portion or the second limiting portion of the boss;

[0008] A base, the boss and the light shield are arranged on the base;

[0009] An identification component, the identification component includes a prism, a first reflector, a second reflector and a light source. The prism, the first reflector, the second reflector and the light source are all arranged inside the base. The prism is arranged on the top of the base. The prism, the first reflector and the second reflector are sequentially arranged in cooperation. The light source is arranged near the prism;

[0010] A camera module, the camera module is arranged inside the base and is arranged relative to the first reflector and the second reflector.

[0011] According to an embodiment of the present utility model, the boss further includes a rotating shaft, the rotating shaft is penetrated through the boss and the light-shielding cover, the light-shielding cover is arranged on the boss through the rotating shaft, and the light-shielding cover is rotatably arranged at the first limiting position and the second limiting position through the rotating shaft.

[0012] According to an embodiment of the present utility model, the light source includes a first lamp board, a second lamp board and a green light source. The first lamp board and the second lamp board are respectively arranged on both sides of the base, the green light source is arranged on the prism, the first lamp board and the second lamp board both emit white light, infrared light and ultraviolet light, and the green light source emits green light.

[0013] According to an embodiment of the present utility model, the light source further includes a first light homogenizing plate and a second light homogenizing plate. The first light homogenizing plate is arranged between the first lamp board and the prism, and the second light homogenizing plate is arranged between the second lamp board and the prism.

[0014] According to an embodiment of the present utility model, the spectral range of the white light is within 400-700 nm, the spectral range of the infrared light is within 850-950 nm, and the wavelength of the ultraviolet light is 365 nm.

[0015] According to an embodiment of the present utility model, the base includes an upper shell and a lower shell. The upper shell is arranged on the lower shell, the boss is arranged on the upper shell, the prism is clamped and fixed through the upper shell and the lower shell, and the first lamp board and the second lamp board are respectively arranged on both sides of the lower shell of the base.

[0016] According to an embodiment of the present utility model, the camera module includes a lens and an antenna. The lens and the antenna are both arranged on the upper shell, and the lens is arranged relative to the first reflector and the second reflector.

[0017] According to an embodiment of the present utility model, the lens adopts a cut-off filter.

[0018] According to an embodiment of the present utility model, the surface of the prism is coated with a layer of diamond-like carbon film.

[0019] According to an embodiment of the present utility model, the surface of the prism is coated with a layer of antireflection film.

[0020] The beneficial effects of the present utility model are as follows: The certificate pattern recognition device can detect identity cards, passports and fingerprints through a camera module in cooperation with multiple reflectors and prisms, reduces the product volume, reduces the transportation, storage and use costs, and has a simple manufacturing process. Description of the Drawings

[0021] Figure 1Schematic cross-sectional view of the certificate pattern recognition device according to an embodiment of the present utility model.

[0022] Figure 2 Schematic cross-sectional view of the certificate pattern recognition device according to the above embodiment of the present utility model.

[0023] Figure 3 Schematic three-dimensional view of the certificate pattern recognition device in the first working state according to the above embodiment of the present utility model.

[0024] Figure 4 Schematic cross-sectional view of the certificate pattern recognition device in the first working state according to the above embodiment of the present utility model.

[0025] Figure 5 Schematic three-dimensional view of the certificate pattern recognition device in the second working state according to the above embodiment of the present utility model.

[0026] Figure 6 Schematic cross-sectional view of the certificate pattern recognition device in the second working state according to the above embodiment of the present utility model. Detailed implementation manners

[0027] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description of the present utility model can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes that do not depart from the spirit and scope of the present utility model.

[0028] Those skilled in the art should understand that in the disclosure of the present utility model, the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present utility model.

[0029] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of this element can be multiple. The term "one" should not be construed as a limitation on the quantity. In addition, in the description of the present utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0030] In the description of the present utility model, it should be understood that terms such as "first", "second", etc. are only for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through a medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0032] As Figures 1 to 6 shown, a certificate pattern recognition device according to an embodiment of the present utility model is disclosed. The certificate pattern recognition device includes a boss 10, a light-shielding cover 20, a base 30, a recognition component 40, a camera module 50, and a main board 60. The boss 10 and the light-shielding cover 20 are both disposed above the base 30. The recognition component 40, the camera module 50, and the main board 60 are all disposed inside the base 30. The boss 10 is provided for the light-shielding cover 20 to be rotatably arranged. The light-shielding cover 20 can switch between two working states through the boss 10. When the light-shielding cover 20 is in the first working state, as Figures 3 to 4 shown, the certificate pattern recognition device can be used for certificate recognition. When the light-shielding cover 20 is in the second working state, as Figures 5 to 6 shown, the certificate pattern recognition device can be used for fingerprint recognition. In addition, the light-shielding cover 20 can prevent stray light from entering the certificate pattern recognition device, reduce the influence on the recognition process, and improve the verification efficiency. The certificate pattern recognition device satisfies the collection functions of certificates and fingerprints through the state switching of the light-shielding cover 20, and uses one camera module 50 to simultaneously satisfy the recognition and comparison of certificate collection and fingerprint collection.

[0033] Further, the boss 10 includes a first limiting portion 11 and a second limiting portion 12. Both the first limiting portion 11 and the second limiting portion 12 are provided on the boss 10 and the light-shielding cover 20. The light-shielding cover 20 can be fixed to the boss 10 at either the first limiting portion 11 or the second limiting portion 12. The first limiting portion 11 and the second limiting portion 12 respectively enable the light-shielding cover 20 to achieve a first working state and a second working state. Specifically, the first limiting portion 11 and the second limiting portion 12 can be, but are not limited to, snap structures. The two snap structures can be implemented as two sets of grooves and protrusions. Each protrusion can be exactly snapped into each groove, so that the light-shielding cover 20 is fixed to the boss 10. Each groove and each protrusion are respectively provided on the boss 10 and the light-shielding cover 20 to cooperate with each other, and the positions of the groove and the protrusion are not limited.

[0034] Further, the boss 10 further includes a rotating shaft 13. The rotating shaft 13 penetrates through the boss 10 and the light-shielding cover 20. The light-shielding cover 20 is provided on the boss 10 through the rotating shaft 13. The light-shielding cover 20 is rotatably provided at the first limiting portion 11 and the second limiting portion 12 through the rotating shaft 13, so as to realize the switching between the first working state and the second working state.

[0035] Further, the recognition assembly 40 includes a prism 41, a first reflector 42, a second reflector 43, and a light source 44. The prism 41, the first reflector 42, the second reflector 43, and the light source 44 are all provided inside the base 30. The prism 41 is provided on the top of the base 30. The prism 41, the first reflector 42, and the second reflector 43 are sequentially arranged in cooperation. The light source 44 is provided at a position close to the prism 41.

[0036] Further, the base 30 includes an upper shell 31 and a lower shell 32. The upper shell 31 is provided on the lower shell 32. The boss 10 is provided on the upper shell 31. The prism 41 is clamped and fixed through the upper shell 31 and the lower shell 32, which is relatively stable and is easy to replace the worn prism 41 in the later stage.

[0037] The recognition component 40 further includes a first light board 441, a second light board 442, a green light source 443, a first light homogenizing plate 444, and a second light homogenizing plate 445. The first light board 441 and the second light board 442 are respectively disposed on both sides of the lower case 32 of the base 30. The first light homogenizing plate 444 is disposed between the first light board 441 and the prism 41. The second light homogenizing plate 445 is disposed between the second light board 442 and the prism 41. The green light source 443 is disposed on the prism 41. The first light board 441 and the second light board 442 can both emit white light, infrared light, and ultraviolet light, and the green light source 443 can emit green light.

[0038] In a specific usage scenario, the first working state of the certificate pattern recognition device is for certificate recognition, and the second working state of the certificate pattern recognition device is for fingerprint recognition. As Figures 3 to 4 shown, when the certificate pattern recognition device is in the first working state mode, a passport certificate or the like is placed close to the prism 41. The photosensitive system is controlled by the camera photosensitive sensor of the camera module 50 and the single-chip microcomputer of the main board 60 to sequentially turn on the white light lamp, the infrared lamp, and the ultraviolet lamp. At this time, the white light, infrared light, and ultraviolet light emitted by the first light board 441 and the second light board 442 pass through the first light homogenizing plate 444 and the second light homogenizing plate 445, and the white light, infrared light, and ultraviolet light become more uniform, which is beneficial to later imaging and recognition. Then, through the reflection and refraction of the prism 41, and through the specular reflection of the first reflector 42 in sequence, the camera module 50 can capture the imaging information of the certificate under the three lights and transmit it to the client through the main board 60 for later algorithm comparison, so as to realize certificate verification. At this time, as Figure 4 shown, the recognition optical path formed by the recognition component 40 is defined by reference numerals 1 and 2 in the figure. Reference numerals 1 and 2 define the range interval of the recognition optical path. When the certificate is located within the range formed by the recognition optical path, it can be successfully recognized. As Figures 5 to 6 shown, when the certificate pattern recognition device is in the second working state mode, any finger of the user presses on the prism 41. The photosensitive system is controlled by the camera photosensitive sensor of the camera module 50 and the single-chip microcomputer of the main board 60 to turn on the green light source 443. The green light source 443 emits the light of the green light lamp, and the light is refracted out through the frosted surface of the prism 41 to evenly light up the surface of the prism 41. Through the reflection and refraction of the prism 41 and the specular reflection of the second reflector 43, the camera module 50 can capture the imaging information of the user's finger and transmit it to the client through the main board 60 for later algorithm comparison, so as to realize fingerprint comparison. At this time, as Figure 6As shown, the recognition optical path formed by the recognition component 40 is defined by label 1 and label 2 in the figure. Label 1 and label 2 define the range interval of the recognition optical path. When the fingerprint on the finger is within the range formed by the recognition optical path, it can be successfully recognized.

[0039] Further, the camera module 50 includes a lens 51 and an antenna 52. Both the lens 51 and the antenna 52 are provided on the upper shell 31. The lens 51 is arranged relative to the first reflector 42 and the second reflector 43. The lens 51 is used to collect imaging information, and the antenna 52 is used to read document information. The camera module 50 transmits relevant information to the main board 60.

[0040] Preferably, in the second working state mode of the certificate and fingerprint recognition device, considering the physiological structure of the hand, it can support single-finger and four-finger inspections at a time, which is easy for the verifier to place the hand and also convenient for recognition and comparison. If five fingers need to be inspected, the fingers that were not inspected in the previous inspection can be inspected again.

[0041] Preferably, a layer of diamond-like carbon film is coated on the surface of the prism 41 to prevent scratches and damage when rubbed by documents, etc., which may affect subsequent recognition steps, extend the service life of the prism 41, and improve recognition efficiency.

[0042] Preferably, a layer of antireflection film is coated on the surface of the prism 41, which can increase the light transmittance, be beneficial to refractive imaging, and improve recognition efficiency.

[0043] Preferably, the camera module 50 is made of aluminum alloy material, which can improve the heat dissipation effect.

[0044] Preferably, the camera module 50 is a high-definition camera module, and the lens 51 is preferably a 12-megapixel camera. By using the refraction of the prism 41 and the first reflector 42 and the second reflector 43 with two different angles, shapes and sizes, a complete optical path is formed through optical reflection.

[0045] Preferably, the lens 51 of the camera module 50 uses a band-pass filter, which can achieve that some wavelengths are blocked and some wavelengths are allowed to pass through. The band-pass filter can be implemented as a cut-off filter, meeting the requirements of four special band lights of green light for fingerprint shooting and ultraviolet, infrared, and white light for document recognition at the same time.

[0046] Preferably, multiple light sources are used. The spectral range of white light is within 400 - 700 nm, the spectral range of infrared light is within 850 - 950 nm, and the wavelength of ultraviolet light is 365 nm. The light source should have a fast response time and a constant luminous intensity.

[0047] Preferably, the camera sensor CMOS has 12 million pixels and has strong universality.

[0048] Preferably, the size of the fingerprint recognition device is small, with a small and compact appearance and complete functions, which is convenient for integrated application.

Claims

1. A fingerprint recognition device, characterized in that: include: A boss, wherein the boss includes a first limit position and a second limit position; a light shield, the light shield being rotatably disposed at the first limit position or the second limit position of the boss; A base, wherein the boss and the light shield are arranged on the base; An identification component, the identification component comprising a prism, a first reflector, a second reflector and a light source, the prism, the first reflector, the second reflector and the light source are all arranged inside the base, the prism is arranged on the top of the base, the prism, the first reflector and the second reflector are arranged in sequence, and the light source is arranged near the prism; A camera module is disposed inside the base, and the camera module is arranged relative to the first reflector and the second reflector.

2. The fingerprint recognition device according to claim 1, characterized in that: The boss further includes a rotating shaft, which is penetrated by the boss and the light shield, and the light shield is arranged on the boss through the rotating shaft. The light shield is rotatably arranged at the first limit position and the second limit position through the rotating shaft.

3. The fingerprint recognition device according to claim 2, characterized in that: The light source includes a first light board, a second light board and a green light source. The first light board and the second light board are respectively arranged on both sides of the base. The green light source is arranged on the prism. The first light board and the second light board both emit white light, infrared light and ultraviolet light. The green light source emits green light.

4. The fingerprint recognition device according to claim 3, characterized in that: The light source further includes a first light averaging plate and a second light averaging plate, wherein the first light averaging plate is disposed between the first light board and the prism, and the second light averaging plate is disposed between the second light board and the prism.

5. The fingerprint recognition device according to claim 3, characterized in that: The spectral range of white light is between 400 and 700nm, the spectral range of infrared light is between 850 and 950nm, and the wavelength of ultraviolet light is 365nm.

6. The fingerprint recognition device according to claim 3, characterized in that: The base includes an upper shell and a lower shell, the upper shell is arranged on the lower shell, the boss is arranged on the upper shell, the prism is clamped and fixed by the upper shell and the lower shell, and the first light board and the second light board are respectively arranged on both sides of the lower shell of the base.

7. The fingerprint recognition device according to claim 6, characterized in that: The camera module includes a lens and an antenna, wherein the lens and the antenna are both disposed on the upper shell, and the lens is disposed relative to the first reflector and the second reflector.

8. The fingerprint recognition device according to claim 7, characterized in that: The lens adopts a cut-off filter.

9. The fingerprint recognition device according to claim 1, characterized in that: The surface of the prism is coated with a layer of diamond film.

10. The fingerprint recognition device according to claim 1, characterized in that: The surface of the prism is coated with an anti-reflection film.

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