Vein recognition device, gate and ticket vending machine

Abstract

The utility model relates to the technical field of traffic control, and provides a vein recognition device. The vein recognition device comprises a box body, a palm vein detection assembly and a cover body. The box body is provided with a cavity and an opening. The palm vein detection assembly is detachably arranged in the cavity, the palm vein detection assembly comprises a circuit board, the circuit board is provided with an infrared camera module and a central processing unit, and the infrared camera module and the central processing unit are located in the central areas of the two sides of the circuit board respectively; the cover body detachably covers the opening. The palm vein recognition device overcomes the defects that most of palm vein recognition modules in the prior art are complex in structure, large in size, high in power consumption and the like and are difficult to be directly applied to scenes such as gates with limited space and strict power consumption requirements, and the palm vein recognition device is compact in structure and small in size.

Description

Technical Field

[0001] The utility model relates to the technical field of access control, in particular to a vein recognition device, a turnstile and an automatic ticket vending machine. Background Art

[0002] At present, urban rail transit turnstiles and automatic ticket gates usually adopt identification methods such as card swiping and code scanning. However, there are problems such as low passing efficiency during peak hours, lack of sufficient data and privacy protection mechanisms, low security, high maintenance costs, and easy loss or forgetting. With the continuous development of biometric technology, applying palm vein recognition technology to turnstiles has become an inevitable trend to improve the security and user experience of turnstiles, achieve fast and contactless identity verification, and meet the requirements for efficient and intelligent travel in modern public places. Most of the existing palm vein recognition modules on the market have problems such as complex structures and large volumes, making it difficult to be directly applied to scenarios with limited space and strict power consumption requirements such as turnstiles. Summary of the Utility Model

[0003] The utility model provides a vein recognition device to solve the defects that most of the existing palm vein recognition modules have problems such as complex structures, large volumes, and high power consumption, and are difficult to be directly applied to scenarios with limited space and strict power consumption requirements such as turnstiles, and to realize a vein recognition device with a compact structure and a small volume.

[0004] The utility model provides a vein recognition device, which includes a box body, a palm vein detection component and a cover body. The box body has a cavity and an opening; the palm vein detection component is detachably arranged inside the cavity. The palm vein detection component includes a circuit board, and the circuit board is provided with an infrared camera module and a central processor. The infrared camera module and the central processor are respectively located in the central areas on both sides of the circuit board; the cover body is detachably covered on the opening.

[0005] According to the vein recognition device provided by the utility model, the circuit board is further provided with a plurality of supplementary light lamps, and the supplementary light lamps are evenly arranged on the periphery of the infrared camera module. The supplementary light lamps are used to provide uniform light.

[0006] According to the vein recognition device provided by the utility model, the circuit board is further provided with a light guide member, and the light guide member is located between the infrared camera module and the supplementary light lamps.

[0007] According to the vein recognition device provided by the utility model, the circuit board is further provided with a proximity sensor, and the proximity sensor is used to detect the contact distance of the palm.

[0008] According to a vein recognition device provided by the present utility model, a data transmission interface is provided at the bottom of the circuit board, the data transmission interface is electrically connected to the circuit board, the cavity is provided with a socket, and the socket is correspondingly arranged with the data transmission interface.

[0009] According to a vein recognition device provided by the present utility model, a sealing ring is provided between the box body and the cover body.

[0010] According to a vein recognition device provided by the present utility model, a signal transmission hole is provided at the top of the cover body, and the infrared camera module collects palm vein information through the signal transmission hole.

[0011] According to a vein recognition device provided by the present utility model, a transparent member is provided at the top of the cover body, and the transparent member is provided with a light transmission hole group.

[0012] The present utility model also provides a turnstile, including the vein recognition device described in any one of the above embodiments.

[0013] The present utility model also provides a ticket vending machine, including the vein recognition device described in any one of the above embodiments.

[0014] In the present utility model, the infrared camera module and the central processing unit are respectively located in the central areas on both sides of the circuit board, and then the infrared camera module and the central processing unit are highly integrated on the circuit board. The overall structure design is simple and compact, and the space is centrally optimized to reduce the overall volume, so that it can be applied to scenarios with limited space and strict power consumption requirements such as turnstiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is an exploded view of the vein recognition device provided by the present utility model.

[0017] Figure 2 It is a structural schematic diagram of the palm vein detection component of the vein recognition device provided by the present utility model.

[0018] Figure 3 It is one of the assembly drawings of the vein recognition device provided by the present utility model.

[0019] Figure 4 It is the second assembly drawing of the vein recognition device provided by the present utility model.

[0020] Figure 5 It is a schematic structural diagram of a coating provided on a transparent member of a vein recognition device provided by the present utility model.

[0021] Reference numerals: 100: box body; 110: cavity; 120: limit groove; 130: socket; 200: palm vein detection assembly; 210: circuit board; 220: proximity sensor; 230: infrared camera module; 240: light guide member; 250: fill light; 260: central processing unit; 270: data transmission interface; 300: cover body; 310: signal transmission hole; 320: boss; 330: flange; 400: transparent member; 410: light transmission hole group; 500: sealing ring. Specific embodiments

[0022] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0023] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of 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, and therefore cannot be understood as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0025] In the embodiments of the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0026] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means 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 embodiments 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.

[0027] Figure 1 An exploded view of the vein recognition device provided by the embodiments of the present utility model is illustrated. Figure 2 A schematic structural diagram of the palm vein detection component of the vein recognition device provided by the embodiments of the present utility model is illustrated. Refer to Figure 1 and Figure 2 , a vein recognition device provided by the embodiments of the present utility model includes a box body 100, a palm vein detection component 200 and a cover body 300. The box body 100 has a cavity 110 and an opening; the palm vein detection component 200 is detachably disposed inside the cavity 110. The palm vein detection component 200 includes a circuit board 210. The circuit board 210 is provided with an infrared camera module 230 and a central processor 260. The infrared camera module 230 and the central processor 260 are respectively located in the central regions on both sides of the circuit board 210; the infrared camera module 230 and the central processor 260 are electrically connected. The infrared camera module 230 is used to collect palm vein information and transmit the palm vein information to the central processor 260. The central processor 260 is used to compare the palm vein information with the data in the information database; the cover body 300 is detachably covered on the opening. It should be noted that the number of the infrared camera modules 230 is not limited to one, and can be multiple. The specific number can be designed accordingly according to the actual situation.

[0028] In the above structure, the infrared camera module 230 and the central processing unit 260 are respectively located in the central regions on both sides of the circuit board 210, thereby highly integrating the infrared camera module 230 and the central processing unit 260 on the circuit board 210. The overall structure design is simple and compact, concentrating on optimizing the space to reduce the overall volume, and thus enabling it to be applied to scenarios with limited space and strict power consumption requirements such as turnstiles. Secondly, the palm vein detection component 200 is designed to be detachable, facilitating maintenance and upgrade. When hardware needs to be updated or repaired, only the palm vein detection component 200 needs to be replaced or removed, without replacing the entire device, reducing the maintenance cost and time. The detachable design of the box body 100 and the cover body 300 enables users to conveniently open or close the device during use, without affecting the palm vein recognition process, enhancing the user experience.

[0029] Specifically, the circuit board 210 can be a PCB board, and the central processing unit 260 can be an ARM chip. A plurality of limit posts are provided inside the box body 100, and threaded holes are provided on the limit posts. The positions of the limit posts should be adapted to the shape of the circuit board 210. Correspondingly, corresponding threaded holes are provided on the circuit board 210, and the two are detachably connected by bolts. By setting the limit posts, on the one hand, it is for threaded connection with the circuit board 210, and on the other hand, it is to ensure that there is a certain space between the circuit board 210 and the inner wall of the box body 100, so as to accommodate the central processing unit 260. Secondly, a limit groove 120 is provided at the opening of the box body 100, and corresponding protrusions or blocks are provided at the opening of the cover body 300. Through the limitation of the limit groove 120 and the protrusions or blocks, the box body 100 and the cover body 300 are covered. In addition, corresponding threaded holes can also be provided on the box body 100 and the cover body 300, and the two are detachably connected by bolts. Specifically, a threaded hole can be provided at each of the four corners of the box body 100 and the cover body 300. Such a setting can make the connection between the two more tight and firm.

[0030] In some possible embodiments, it is necessary to reasonably arrange the positions of the components on the circuit board 210 to ensure that the infrared camera module 230 and the central processing unit 260 are located in the optimal working positions while minimizing the space occupied between them as much as possible. The layout can be optimized through 3D modeling and simulation analysis. On the premise of ensuring performance, components with smaller volume and lower power consumption are selected, such as a micro infrared camera module 230, a high-performance and low-power processor chip, etc. The box body 100 can be made of lightweight materials (such as aluminum alloy or plastic), and a reasonable internal structure is designed to support the palm vein detection component 200, while minimizing the thickness and width of the box body 100 to make the overall more compact. The box body 100 can be integrally injection-molded.

[0031] Refer to Figure 1, in some embodiments of the present utility model, the circuit board 210 is further provided with a plurality of supplementary light lamps 250, which are evenly arranged around the infrared camera module 230, and the supplementary light lamps 250 are used to provide uniform light.

[0032] Specifically, the supplementary light lamps 250 can be LED lamps and are electrically connected to the circuit board 210. The supplementary light lamps 250 are arranged at circular intervals with the infrared camera module 230 as the center. By setting the supplementary light lamps 250, a stable and uniform light source can be provided for the infrared camera module 230. Especially in the case of insufficient or greatly changing ambient light, shadows and reflections can be effectively reduced, making the palm vein image clearer and richer in details, thereby providing high-quality images for vein recognition. The input of high-quality images can reduce the processing time of the central processing unit because clearer images mean fewer requirements for image processing algorithms, thus accelerating the extraction and comparison speed of vein information.

[0033] The supplementary light lamps 250 can also be designed as independent modules, which are convenient for installation, maintenance and replacement. The supplementary light lamps 250 are connected to the circuit board 210 through connectors or slots to ensure the stability and reliability of the electrical connection. When space permits, the supplementary light lamps 250 can be directly integrated around the infrared camera module 230 to form a compact structure, reducing the volume and weight of the overall device. Specifically, the supplementary light lamps 250 are arranged in a ring around the infrared camera module 230 to ensure uniform light is provided from all directions and obvious shadow areas are avoided.

[0034] In some possible embodiments, the supplementary light lamps 250 can be set to a dimmable design, so that the supplementary light lamps 250 should have a brightness adjustment function, and the user or the system can automatically or manually adjust the brightness according to the actual light conditions to achieve the best lighting effect. To avoid discomfort caused by the direct irradiation of the supplementary light lamps 250 on the human eyes, a frosted treatment or an anti-glare grid can be adopted on the supplementary light lamps 250 to reduce light scattering and glare phenomena.

[0035] Refer to Figure 1 , in some embodiments of the present utility model, the circuit board 210 is further provided with a light guide member 240, and the light guide member 240 is located between the infrared camera module 230 and the supplementary light lamps 250.

[0036] In the above structure, the light guide member 240 can reduce the scattering of light during propagation, ensuring that the light emitted by the fill light 250 is evenly distributed in front of the infrared camera module 230, enabling the light to irradiate the palm vein area more concentratedly, avoiding the decline in image quality caused by too strong or too weak light, and thus improving the acquisition quality of palm vein images. Secondly, the light guide member 240 can optimize the path of light from the fill light 250 to the palm vein area and then to the infrared camera module 230, reducing the loss of light energy and improving the light energy utilization efficiency. The light guide member 240 can also play a role in protecting the infrared camera module 230, preventing external light or dust from directly irradiating or contaminating the infrared camera module 230, and extending the service life of the infrared camera module 230.

[0037] Specifically, the light guide member 240 is made of a material with good light transmittance to ensure efficient light transmission. At the same time, the light guide member 240 should have a certain mechanical strength and abrasion resistance to withstand friction and impact during long-term use, such as PMMA (polymethyl methacrylate) or PC (polycarbonate), etc. The shape of the light guide member 240 can be an annular structure, which tightly surrounds the outside of the infrared camera module 230.

[0038] In some possible embodiments, the light guide member 240 can adopt a surface design with microstructures, such as a frosted surface, a matte surface, or a surface with tiny concave-convex textures. These microstructures can effectively scatter light, causing the light to form uniform diffuse reflection inside the light guide member 240, thereby achieving uniform light distribution. When the light emitted by the fill light 250 enters the light guide member 240, the light will first refract and reflect on the surface of the light guide member 240. Due to the possible microstructures inside the light guide member 240, the light will undergo multiple reflections and scatterings inside it, gradually spreading and being evenly distributed.

[0039] Refer to Figure 1 In some embodiments of the present utility model, the circuit board 210 is further provided with a proximity sensor 220, and the proximity sensor 220 is used to detect the contact distance of the palm. The proximity sensor 220, the infrared camera module 230, and the fill light 250 are all electrically connected to the central processing unit 260 through the circuit board 210.

[0040] In this embodiment, the proximity sensor 220 can sense the approach of the palm in advance, and then transmit this information to the central processing unit 260. The central processing unit 260 controls the pre-start of the fill light 250 or adjusts the working state of the infrared camera module 230, so that when the user places the palm on the detection area, the system is already in the best working state, improving the recognition speed and accuracy and enhancing the user experience. The proximity sensor 220 can also detect the proximity degree of the palm, and then control the turning-on timing of components such as the fill light 250 and the infrared camera module 230 through the central processing unit 260, avoiding unnecessary energy consumption when there is no one using it or the palm is far away, achieving the purpose of energy conservation and consumption reduction.

[0041] The proximity sensor 220 can specifically be an infrared proximity sensor or a capacitive proximity sensor. The infrared proximity sensor detects the approach of an object by emitting infrared rays and receiving the signals reflected back. When the palm approaches, it will block or reflect some infrared rays. After the sensor receives these signals, it will judge the proximity degree of the palm. The capacitive proximity sensor uses the change of capacitance to detect the approach of an object. When the palm approaches the sensor, it will change the electric field distribution around the sensor, resulting in a change in the capacitance value. The sensor judges the proximity degree of the palm by detecting this change.

[0042] The working principle of this embodiment is as follows: when the proximity sensor 220 detects the approach of the palm, it will send a signal to the central processing unit 260. The central processing unit 260 then controls the fill light 250 to turn on in advance or adjust the brightness to ensure that the light is already in the best state when the palm is completely placed on the detection area. In addition, the central processing unit 260 can also make comprehensive judgments and processing based on this information and the palm vein images collected by the infrared camera module 230. For example, it maintains a low-power state when the palm is not approaching and starts the recognition process when the palm approaches. At the same time, the infrared camera module 230 can also feedback the collected image information to the central processing unit 260 for further optimizing the working parameters of the fill light 250 and the proximity sensor 220.

[0043] Refer to Figure 1 , in some embodiments of the present utility model, a data transmission interface 270 is provided at the bottom of the circuit board 210. The data transmission interface 270 is electrically connected to the circuit board 210. The cavity 110 is provided with a socket 130, and the socket 130 is correspondingly arranged with the data transmission interface 270. The circuit board 210 is connected to an external power supply or a data cable through the data transmission interface 270, so as to supply power and transmit data for the entire device.

[0044] Refer to Figure 1, in some embodiments of the present utility model, a sealing ring 500 is provided between the box body 100 and the cover body 300. The function of setting the sealing ring 500 is to prevent water and dust, thereby ensuring the cleanliness inside the device and preventing short circuits due to moisture inside.

[0045] Refer to Figure 1 , in some embodiments of the present utility model, a signal transmission hole 310 is provided at the top of the cover body 300, and the infrared camera module 230 collects palm vein information through the signal transmission hole 310. A transparent member 400 is provided at the top of the cover body 300, and the transparent member 400 is provided with a light transmission hole group 410.

[0046] Figure 3 Illustrates one of the assembly diagrams of the vein recognition device provided by the embodiments of the present utility model. Figure 4 Illustrates the second assembly diagram of the vein recognition device provided by the embodiments of the present utility model. Refer to Figure 3 And Figure 4 , a boss 320 or a flange 330 is provided on the outer periphery of the cover body 300.

[0047] Figure 5 Illustrates the structural schematic diagram of the coating provided on the transparent member of the vein recognition device provided by the embodiments of the present utility model. Refer to Figure 5 , in some embodiments of the present utility model, the transparent member 400 is made of a highly transparent glass sheet with anti-fingerprint and anti-scratch properties, and a black coating is provided on the rest of its top surface except at the light transmission hole group 410. It should be noted that the light transmission hole group 410 includes three through holes (i.e., Figure 5 the three white areas in), and the three through holes are arranged in one-to-one correspondence with the proximity sensor 220, the infrared camera module 230, and the supplementary light 250. Such a setting is to allow the light or signals of the proximity sensor 220, the infrared camera module 230, and the supplementary light 250 to pass through, so as to better collect information.

[0048] The present utility model also provides a turnstile, including the vein recognition device of any one of the above embodiments.

[0049] The present utility model also provides a ticket vending machine, including the vein recognition device of any one of the above embodiments.

[0050] It should be noted that the present utility model can be applied not only to turnstiles and ticket vending machines, but also to other devices that require access control. For example: intelligent customer service centers, access control systems, attendance systems, security monitoring, and security inspection equipment, etc.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vein recognition device, characterized in that: include: A box body (100) having a cavity (110) and an opening; A palm vein detection component (200) is detachably arranged inside the cavity (110), the palm vein detection component (200) comprising a circuit board (210), the circuit board (210) being provided with an infrared camera module (230) and a central processing unit (260), the infrared camera module (230) and the central processing unit (260) being respectively located in the central areas on both sides of the circuit board (210); The cover body (300) is detachably covered on the opening.

2. The vein recognition device according to claim 1, characterized in that: The circuit board (210) is further provided with a plurality of fill lights (250), the fill lights (250) being evenly arranged on the periphery of the infrared camera module (230), and the fill lights (250) being used to provide even light.

3. The vein recognition device according to claim 2, characterized in that: The circuit board (210) is further provided with a light guide (240), and the light guide (240) is located between the infrared camera module (230) and the fill light (250).

4. The vein recognition device according to claim 2, characterized in that: The circuit board (210) is also provided with a proximity sensor (220), and the proximity sensor (220) is used to detect the contact distance of the palm.

5. The vein recognition device according to claim 4, characterized in that: A data transmission interface (270) is provided at the bottom of the circuit board (210), and the data transmission interface (270) is electrically connected to the circuit board (210). The cavity (110) is provided with a socket (130), and the socket (130) is arranged corresponding to the data transmission interface (270).

6. The vein recognition device according to any one of claims 1 to 4, characterized in that: A sealing ring (500) is provided between the box body (100) and the cover body (300).

7. The vein recognition device according to claim 6, characterized in that: A signal transmission hole (310) is provided on the top of the cover body (300), and the infrared camera module (230) collects palm vein information through the signal transmission hole (310).

8. The vein recognition device according to claim 4, characterized in that: A transparent member (400) is provided on the top of the cover body (300), and the transparent member (400) is provided with a light-transmitting hole group (410).

9. A gate machine, characterized in that: Comprising a vein recognition device as described in any one of claims 1-8.

10. An automatic ticket vending machine, characterized in that: Comprising a vein recognition device as described in any one of claims 1-8.

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