Fingerprint identification assembly and intelligent lock

Abstract

The utility model relates to the technical field of intelligent door locks, and discloses a fingerprint recognition assembly and an intelligent lock, the fingerprint recognition assembly is provided with a first direction and comprises a contact seat, the contact seat is suitable for being touched by fingers of a user, a groove is formed in the outer side wall of the contact seat, and the groove wall of the groove is arranged to be a curved surface suitable for being matched with the fingers; wherein the groove wall of the groove is sequentially provided with a first recognition area, a second recognition area and a guide area in the first direction, the first recognition area is suitable for being in contact with the finger center area, the second recognition area is suitable for being in contact with the finger edge, and the guide area is suitable for guiding the finger in the direction opposite to the first direction. The method can improve the fitting degree of the recognition area and the finger, and improves the recognition success rate.

Description

Technical Field

[0001] This application relates to the field of smart door lock technology, specifically to a fingerprint recognition component and a smart lock. Background Technology

[0002] Fingerprint recognition technology, as a biometric technology, has been widely used in fields such as identity verification, security monitoring, and unlocking smart devices. Its core lies in accurately identifying an individual by collecting and analyzing the unique texture features of their finger surface. With technological advancements, fingerprint recognition technology has evolved from early optical recognition to various forms such as capacitive and ultrasonic fingerprint recognition, greatly improving the accuracy and convenience of identification.

[0003] Most fingerprint recognition modules in related technologies employ a flat recognition area. Users must place their finger flat on this surface and press it so the device can capture sufficient fingerprint information to complete the recognition process. While this design is simple and easy to integrate into various smart devices, it has certain shortcomings in terms of user experience. Particularly regarding fit, because the flat surface doesn't perfectly match the natural curvature of the finger, users often need to apply pressure when pressing. This not only affects the comfort of recognition but may also increase the failure rate due to improper operation.

[0004] The main technical problem with existing planar fingerprint recognition designs is the poor fit between the finger and the recognition area. The planar structure cannot fully adapt to the natural 3D curvature of the finger, resulting in a limited contact area between the finger and the recognition surface during pressing, which affects the quality of fingerprint information collection and recognition efficiency. Utility Model Content

[0005] This application provides a fingerprint recognition component and a smart lock to solve the problem of poor contact between the recognition area and the finger, which reduces the recognition success rate.

[0006] In a first aspect, this application provides a fingerprint recognition component, which is provided in a first direction and includes a contact seat adapted to be touched by a user's finger. The outer wall of the contact seat is provided with a groove, and the groove wall is configured as a curved surface adapted to conform to the finger. The groove wall is provided with a first recognition area, a second recognition area and a guide area in sequence along the first direction. The first recognition area is adapted to contact the center area of ​​the finger, the second recognition area is adapted to contact the edge of the finger, and the guide area is adapted to guide the finger in the opposite direction of the first direction.

[0007] Beneficial effects: By designing a contact seat with curved grooves, and ensuring the groove walls conform to the natural curvature of the finger, the fit between the finger and the recognition area can be significantly improved. The sequential arrangement of a first recognition area, a second recognition area, and a guide area within the groove along a first direction not only optimizes the layout of the fingerprint information collection area but also guides the user to correctly place their finger, reducing the possibility of misoperation. The combined use of the first and second recognition areas allows for comprehensive recognition of the finger's central area and edges, improving the stability and accuracy of the recognition process.

[0008] In one alternative implementation, the curvature diameter of the first identification area is greater than that of the second identification area, and the curvature diameter of the second identification area is greater than that of the guide area.

[0009] Beneficial effects: The first recognition area, second recognition area, and guide area employ different curvature diameters, further enhancing the fit between the finger and the recognition surface and ensuring the comprehensiveness and accuracy of fingerprint information collection. The guide area, with its smallest curvature diameter, guides the finger, making its movement more precise when inserted into the groove, avoiding incomplete contact and improving recognition accuracy. The second recognition area, with a larger curvature diameter than the guide area, reduces the design complexity of the algorithm, and its lower slope makes fingerprint recognition more accurate. The first recognition area, with its largest curvature diameter, has the gentlest slope, facilitating more accurate recognition of the central area of ​​the finger.

[0010] In one optional implementation, the curvature diameter of the first identification area is set to A, where 0.1mm ≤ A ≤ 1000mm.

[0011] Beneficial effect: By setting the curvature diameter range of the first recognition area (0.1mm≤A≤1000mm), it is ensured that the area can adapt to the curvature of different fingers and guarantee sufficient recognition accuracy.

[0012] In one optional implementation, the curvature diameter of the second identification area is set to B, where 0.1 mm ≤ B ≤ 1000 mm.

[0013] Beneficial effects: Setting the curvature diameter range of the second recognition area (0.1mm≤B≤1000mm) allows the area to better fit the edge of the finger, improving the efficiency of fingerprint information collection.

[0014] In one optional implementation, the curvature diameter of the guide region is set to C, where 0.1 mm ≤ C ≤ 1000 mm.

[0015] Beneficial effects: The setting of the curvature diameter range of the guide area (0.1mm≤C≤1000mm) helps guide the finger to naturally transition to the recognition area, improving the user experience.

[0016] In one alternative embodiment, a base is further included, which is connected to the contact seat, and the base and the contact seat are arranged sequentially along the first direction.

[0017] Beneficial effects: The combined design of the base and the contact seat not only enhances the structural stability of the fingerprint recognition component, but also provides a reliable installation platform for the fingerprint recognition sensor.

[0018] In an alternative embodiment, a fingerprint recognition sensor is also included, which is disposed within the base and is adapted to acquire fingerprint information of the central area of ​​the finger and the edge of the finger.

[0019] Beneficial effects: The fingerprint recognition sensor is located inside the base, which can accurately acquire fingerprint information from the center area and the edge of the finger, improving the accuracy and reliability of recognition.

[0020] In one optional implementation, the first identification area, the second identification area, and the guide area are connected sequentially along the first direction, and the connection positions of the first identification area and the second identification area are smoothly transitioned, as are the connection positions of the second identification area and the guide area.

[0021] Beneficial effects: Due to the different curvature diameters of the first recognition area, the second recognition area, and the guide area, sharp corners or concave structures may occur at the joints between any two areas when they are spliced ​​together. Therefore, the transition areas between the three areas can be chamfered when setting up the first recognition area, the second recognition area, and the guide area. The smooth transition design between the first recognition area, the second recognition area, and the guide area ensures finger comfort during movement and avoids recognition failures caused by abrupt transitions.

[0022] In one optional implementation, the height of the first identification area along the first direction is less than the height of the second identification area along the first direction, and the height of the second identification area along the first direction is less than the height of the guide area along the first direction.

[0023] Beneficial effects: By adjusting the height of each recognition area along the first direction, the contact area and fit between the finger and the recognition surface are further optimized, improving the stability and success rate of recognition.

[0024] Secondly, this application also provides a smart lock, including the fingerprint recognition device.

[0025] Beneficial effects: Smart locks employing the aforementioned fingerprint recognition components not only improve recognition accuracy and convenience but also enhance the user experience by optimizing the fit between the finger and the recognition surface. Simultaneously, the smart lock also significantly improves security, providing strong protection for users' property. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a fingerprint recognition component according to an embodiment of this application;

[0028] Figure 2 This is a cross-sectional view of a fingerprint recognition component according to an embodiment of this application;

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Contact seat; 2. First identification area; 3. Second identification area; 4. Guide area; 5. Base; X, First direction. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] The following is combined with Figures 1 to 2 This describes an embodiment of the present application.

[0033] According to an embodiment of this application, a fingerprint recognition component is provided, which is provided in a first direction X, including a contact seat 1. The contact seat 1 is adapted to be touched by a user's finger. The outer wall of the contact seat 1 is provided with a groove, and the groove wall is configured as a curved surface adapted to conform to the finger. The groove wall is provided with a first recognition area 2, a second recognition area 3 and a guide area 4 in sequence along the first direction X. The first recognition area 2 is adapted to contact the center area of ​​the finger, the second recognition area 3 is adapted to contact the edge of the finger, and the guide area 4 is adapted to guide the finger in the opposite direction of the first direction X.

[0034] It should be noted that, as Figure 2 As shown, the first recognition area 2 is located on the bottom surface of the groove, specifically a concave surface that is recessed in the reverse direction X, allowing it to contact the near-circular surface of the finger's center area and acquire fingerprint information from the user's finger's center area via a fingerprint sensor. The second recognition area 3 is located in the middle of the groove, forming a ring structure on a plane perpendicular to the first direction X. The second recognition area 3 is an arc-shaped surface, and its cross-sectional area perpendicular to the first direction X gradually increases along the first direction X. This allows it to contact the near-ring-shaped surface of the finger's edge area and acquire fingerprint information from the user's finger's edge via a fingerprint sensor. The guide area 4 is located at the top of the groove, forming a ring structure on a plane perpendicular to the first direction X. The guide area 4 is an arc-shaped surface, and its cross-sectional area perpendicular to the first direction X gradually increases along the first direction X.

[0035] In this embodiment, by providing a contact seat 1 with a curved groove, and ensuring that the groove wall matches the natural curvature of the finger, the fit between the finger and the recognition area can be significantly improved. By sequentially arranging a first recognition area 2, a second recognition area 3, and a guide area 4 along the first direction X within the groove, not only is the layout of the fingerprint information collection area optimized, but the design of the guide area 4 also guides the user to correctly place their finger, reducing the possibility of misoperation. The combined use of the first recognition area 2 and the second recognition area 3 allows for comprehensive recognition of the central area and edges of the finger, improving the stability of the recognition process and simultaneously increasing accuracy.

[0036] In one embodiment, the curvature diameter of the first identification area 2 is greater than the curvature diameter of the second identification area 3, and the curvature diameter of the second identification area 3 is greater than the curvature diameter of the guide area 4.

[0037] It is understandable that the curvature diameter of the first identification area 2 refers to, for example, Figure 2 The curvature diameter of the arc along the first direction X section is shown. The curvature diameter of the second identification area 3 refers to... Figure 2 The curvature diameter of the arc along the first direction X section is shown. The curvature diameter of guide zone 4 refers to... Figure 2 The curvature diameter of the arc along the first direction X section is shown.

[0038] In this embodiment, the first recognition area 2, the second recognition area 3, and the guide area 4 are designed with different curvature diameters to enhance the fit between the finger and the recognition surface, ensuring the comprehensiveness and accuracy of fingerprint information collection. Simultaneously, limiting the curvature diameter A of the first recognition area 2 to be greater than the curvature diameter B of the second recognition area 3 to be greater than the curvature diameter C of the guide area 4 further enhances the fit between the finger and the recognition surface. The smallest curvature diameter of the guide area 4 guides the finger, making the finger's movement more precise when inserted into the groove, avoiding incomplete contact and improving recognition accuracy. The curvature diameter of the second recognition area 3 being greater than that of the guide area 4 reduces the design complexity of the algorithm, and its reduced slope makes fingerprint recognition more accurate. The largest curvature diameter of the first recognition area 2 results in the gentlest slope, facilitating more accurate recognition of the central area of ​​the finger.

[0039] In one embodiment, the groove wall of the groove on the contact seat 1 needs to be spliced ​​with a curved surface of more than one segment, and the process of splicing the curved surface arc needs to be smooth; the first recognition area 2 and the second recognition area 3 set in the groove are more gentle than the guide area 4, which can reduce the algorithm difficulty and improve the processing accuracy.

[0040] In one embodiment, the curvature diameter of the first identification area 2 is set to A, where 0.1mm ≤ A ≤ 1000mm.

[0041] Optionally, the curvature diameter A of the first identification area 2 can be set to 500mm. In this case, the curvature diameter B of the second identification area 3 is less than 500mm, and the curvature diameter C of the guide area 4 is less than the curvature diameter B of the second identification area 3.

[0042] Optionally, the curvature diameter A of the first identification area 2 can be set to 1000mm, in which case the curvature diameter B of the second identification area 3 is less than 1000mm, and the curvature diameter C of the guide area 4 is less than the curvature diameter B of the second identification area 3.

[0043] In this embodiment, by setting the curvature diameter range of the first recognition area 2 (0.1mm≤A≤1000mm), it is ensured that the area can adapt to the curvature of different fingers and guarantee sufficient recognition accuracy.

[0044] In one embodiment, the curvature diameter of the second identification area 3 is set to B, where 0.1mm ≤ B ≤ 1000mm.

[0045] Optionally, the curvature diameter B of the second identification area 3 can be set to 500mm, in which case the curvature diameter A of the first identification area 2 is greater than 500mm, and the curvature radius C of the guide area 4 is less than 500mm.

[0046] In this embodiment, the curvature diameter range of the second recognition area 3 is set to be (0.1mm≤B≤1000mm) so that the area can better fit the edge of the finger and improve the collection efficiency of fingerprint information.

[0047] In one embodiment, the curvature diameter of the guide region 4 is set to C, where 0.1mm ≤ C ≤ 1000mm.

[0048] Optionally, the curvature diameter C of the guide area 4 can be set to 500mm. In this case, the curvature diameter B of the second recognition area 3 is greater than 500mm, and the curvature diameter A of the first recognition area 2 is greater than the curvature diameter B of the second recognition area 3.

[0049] Optionally, the curvature diameter C of the guide area 4 can be set to 0.1 mm. In this case, the curvature diameter B of the second recognition area 3 is greater than 0.1 mm, and the curvature diameter A of the first recognition area 2 is greater than the curvature diameter B of the second recognition area 3.

[0050] In this embodiment, the setting of the curvature diameter range of the guide area 4 (0.1mm≤C≤1000mm) helps to guide the finger to naturally transition to the recognition area, improving the user experience.

[0051] In one embodiment, the curvature diameter A of the first identification area 2, the curvature diameter B of the second identification area 3, and the curvature diameter C of the guide area 4 can be set to equal values.

[0052] In one embodiment, a base 5 is also included, which is connected to a contact seat 1, and the base 5 and the contact seat 1 are arranged sequentially along a first direction X.

[0053] Optionally, the cross-section of the base 5 perpendicular to the first direction X can be set to one of a circle, a near-circular shape, or a regular polygon. The cross-section of the contact seat 1 perpendicular to the first direction X can be set to one of a circle, a near-circular shape, or a regular polygon.

[0054] Optionally, the cross-sectional area of ​​the base 5 perpendicular to the first direction X is greater than the cross-sectional area of ​​the contact seat 1 perpendicular to the first direction X.

[0055] In this embodiment, the combination of the base 5 and the contact seat 1 not only enhances the structural stability of the fingerprint recognition component, but also provides a reliable installation platform for the fingerprint recognition sensor.

[0056] In one embodiment, a fingerprint recognition sensor is also included, which is disposed within the base 5 and is adapted to acquire fingerprint information of the central area of ​​the finger and the edge of the finger.

[0057] It should be noted that multiple fingerprint recognition sensors are provided, and these multiple fingerprint recognition sensors are equally spaced along the circumference of the contact base 1 and located directly below the second recognition area 3. Since the fingerprint recognition sensor receives data in a fan-shaped structure, the first recognition area 2 and the second recognition area 3 share multiple fingerprint sensors.

[0058] In this embodiment, the fingerprint recognition sensor is installed inside the base 5, which can accurately acquire fingerprint information from the center area and edge of the finger, thus improving the accuracy and reliability of recognition.

[0059] In one embodiment, the first identification area 2, the second identification area 3, and the guide area 4 are connected sequentially along the first direction X, and the connection positions of the first identification area 2 and the second identification area 3 are smoothly transitioned, as are the connection positions of the second identification area 3 and the guide area 4.

[0060] It is understandable that, since the curvature diameters of the first identification area 2, the second identification area 3, and the guide area 4 are different, when the first identification area 2, the second identification area 3, and the guide area 4 are spliced ​​together, sharp corners or sharp recessed structures will be generated at the splicing point between any two. Therefore, when setting the first identification area 2, the second identification area 3, and the guide area 4, the transition area of ​​the three can be chamfered.

[0061] Optionally, since the curvature diameters of the first identification area 2, the second identification area 3, and the guide area 4 are different, when the first identification area 2, the second identification area 3, and the guide area 4 are spliced ​​together, a sharp corner or a sharp indentation structure will be generated at the splicing point between any two. Therefore, when setting the first identification area 2, the second identification area 3, and the guide area 4, an annular transition structure can be set between any two, so that the first identification area 2, the second identification area 3, and the guide area 4 can be smoothly transitioned through the annular transition structure.

[0062] In this embodiment, the smooth transition design between the first recognition area 2, the second recognition area 3 and the guide area 4 ensures the comfort of the finger during movement, while avoiding recognition failure caused by abrupt transitions.

[0063] In one embodiment, the height of the first identification area 2 along the first direction X is less than the height of the second identification area 3 along the first direction X, and the height of the second identification area 3 along the first direction X is less than the height of the guide area 4 along the first direction X.

[0064] Understandably, to make it easier and more precise for the finger to enter the groove, the curvature diameter of the guide area 4 can be reduced while its height can be increased, maximizing the proportion of the guide area 4's height to the groove depth. This allows the user to quickly and accurately insert their finger into the groove to contact the first recognition area 2 and the second recognition area 3 for recognition. To ensure more precise contact between the center area of ​​the finger and the third recognition area, the curvature diameter of the second recognition area 3 can be reduced compared to that of the guide area 4, while its height can be decreased. This allows it to fit more closely to the edge of the finger, reducing algorithm complexity and improving processing accuracy. The curvature diameter of the third recognition area is minimized, and its height is set to the lowest possible level, creating a smooth area within the third recognition area, further reducing algorithm complexity and improving processing accuracy.

[0065] In this embodiment, by adjusting the height of each recognition area along the first direction X, the contact area and fit between the finger and the recognition surface are further optimized, thereby improving the stability and success rate of recognition.

[0066] According to an embodiment of this application, another aspect provides a smart lock including a fingerprint recognition device.

[0067] In this embodiment, the smart lock employing the aforementioned fingerprint recognition component not only improves the accuracy and convenience of recognition but also enhances the user experience by optimizing the fit between the finger and the recognition surface. Simultaneously, the smart lock also significantly improves security, providing strong protection for the user's property.

[0068] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A fingerprint recognition component, configured with a first direction (X), characterized in that, include: A contact seat (1) is provided for a user's finger to touch. The outer wall of the contact seat (1) is provided with a groove, and the groove wall is provided with a curved surface suitable for conforming to the finger. The groove wall is provided with a first identification area (2), a second identification area (3) and a guide area (4) in sequence along the first direction (X). The first identification area (2) is adapted to contact the center area of ​​the finger, the second identification area (3) is adapted to contact the edge of the finger, and the guide area (4) is adapted to guide the finger in the opposite direction of the first direction (X).

2. The fingerprint recognition component according to claim 1, characterized in that: The curvature diameter of the first identification area (2) is greater than that of the second identification area (3), and the curvature diameter of the second identification area (3) is greater than that of the guide area (4).

3. The fingerprint recognition component according to claim 2, characterized in that: The curvature diameter of the first identification area (2) is set to A, where 0.1mm≤A≤1000mm.

4. The fingerprint recognition component according to claim 2, characterized in that: The curvature diameter of the second identification area (3) is set to B, where 0.1mm≤B≤1000mm.

5. The fingerprint recognition component according to claim 2, characterized in that: The curvature diameter of the guide area (4) is set to C, where 0.1mm≤C≤1000mm.

6. The fingerprint recognition component according to claim 1, characterized in that, Also includes: The base (5) is connected to the contact seat (1), and the base (5) and the contact seat (1) are arranged sequentially along the first direction (X).

7. The fingerprint recognition component according to claim 6, characterized in that, Also includes: A fingerprint sensor is disposed within the base (5) and is adapted to acquire fingerprint information of the central area of ​​the finger and the edge of the finger.

8. The fingerprint recognition component according to claim 1, characterized in that: The first identification area (2), the second identification area (3) and the guide area (4) are connected sequentially along the first direction (X), and the connection position between the first identification area (2) and the second identification area (3) is smoothly transitioned, and the connection position between the second identification area (3) and the guide area (4) is smoothly transitioned.

9. The fingerprint recognition component according to claim 1, characterized in that: The height of the first identification area (2) along the first direction (X) is less than the height of the second identification area (3) along the first direction (X), and the height of the second identification area (3) along the first direction (X) is less than the height of the guide area (4) along the first direction (X).

10. A smart lock, characterized in that, include: The fingerprint recognition component according to any one of claims 1 to 9.

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