Intelligent door lock capable of intelligently recognizing human body

Abstract

The intelligent door lock comprises a door lock front end cover, a lock cylinder and a door lock rear end cover, a U-shaped shell is arranged on the front side of the top of the door lock front end cover, a recognition camera electrically connected with a biological recognition device is arranged in the U-shaped shell, and the recognition camera is movably connected with the inner wall of the U-shaped shell; automatic angle adjustment is achieved through up-down rotation. When the face of the user is not in the scanning recognition range of the recognition camera, a microcontroller of the biological recognition device drives a small driving motor to operate, the small driving motor drives a first gear to rotate, the first gear drives a gear ring and a second connecting rotating shaft to rotate, and recognition camera shooting angle adjustment is achieved to capture and scan the face of the human body. According to the invention, automatic angle adjustment during face scanning recognition can be realized, and the system can adapt to people with different heights without manual operation, so that the recognition efficiency is effectively improved, and the time cost is saved.

Description

Technical Field

[0001] The present invention belongs to the field of smart door locks, and in particular relates to a smart door lock capable of intelligently identifying a human body. Background Art

[0002] A smart door lock is a door lock system that integrates advanced technology. It can achieve remote control, monitoring and security management of door locks through electronic or wireless communication technology. Smart door locks usually use fingerprint recognition, password input, mobile phone App control, face recognition and other methods to unlock, thus eliminating the use of traditional physical keys. Overall, smart door locks provide more convenient, safe and intelligent door lock solutions by integrating advanced technology, and are favored by more and more users.

[0003] The invention patent with announcement number CN218406955U discloses an intelligent door lock based on facial recognition function. A person rotates the camera to a suitable position, and the adjusted camera is fixed by a limiting mechanism and a clamping mechanism. This facilitates facial recognition of people of different heights. However, the camera of this device needs to be rotated and adjusted by the person in order to capture and identify the person. Such operation not only wastes the user's time, but also makes the overall operation more cumbersome. Summary of the Invention

[0004] The present invention aims to provide a smart door lock that can intelligently identify the human body. It can automatically adjust the angle during face scanning and recognition to adapt to people of different heights without manual operation, thereby effectively improving recognition efficiency and saving time costs.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A smart door lock capable of intelligently identifying human bodies comprises a front end cover of the door lock, a lock core and a rear end cover of the door lock, wherein a U-shaped shell is provided on the front side of the top of the front end cover of the door lock, and an identification camera electrically connected to a biometric identification device is provided inside the U-shaped shell, the identification camera is movably connected to the inner wall of the U-shaped shell, and the angle is automatically adjusted by rotating up and down; a connecting shaft 1 and a connecting shaft 2 are respectively provided on both sides of the identification camera, extending into the interior of the U-shaped shell, a gear ring is provided on the outer surface of the connecting shaft 2, and a small drive motor is provided on the outside of the U-shaped shell, the small drive motor is electrically connected to a microcontroller of the biometric identification device, a driving end of the small drive motor extends into the interior of the U-shaped shell and is installed with a gear 1 meshing with the gear ring, when the user is taller or shorter and the face is not within the scanning and identification range of the identification camera, the microcontroller of the biometric identification device drives the small drive motor to operate, the small drive motor drives the gear 1 to rotate, the gear 1 drives the gear ring and the connecting shaft 2 to rotate, thereby adjusting the identification camera angle to capture and scan the human face.

[0007] Furthermore, a password sensing button and a fingerprint identifier are provided on the front side of the front cover of the door lock, below the U-shaped shell. A protective mechanism is provided on the periphery of the password sensing button and the fingerprint identifier, which is slidably connected to the front cover of the door lock. The protective mechanism is electrically connected to the microcontroller of the biometric device. When the biometric device successfully performs face recognition, the protective mechanism can slide to expose the password sensing button and the fingerprint identifier.

[0008] Furthermore, the protection mechanism includes a U-shaped plate arranged inside the front end cover of the door lock, and limit sliders are integrally provided on the left and right sides of the U-shaped plate, and matching limit slide grooves are opened at the positions of the inner side wall of the front end cover of the door lock corresponding to the limit sliders; rectangular limit holes are respectively opened on the left and right sides of the front end cover of the door lock, and a connecting plate connected to the vertical end of the U-shaped plate is provided in each rectangular limit hole, and a protective baffle is provided on the front side of the front end cover of the door lock, and the U-shaped plate and the protective baffle are connected to form a surrounding protective frame structure through the connecting plate, and when the U-shaped plate moves up and down along the limit slide groove, the protective frame structure is driven to move together; a small motor is installed on the inner wall side of the front end cover of the door lock through a fixed plate, and the small motor is electrically connected to the microcontroller of the biometric identification device, and a driving end of the small motor is provided with a gear 2, and a rack meshing with the gear 2 is integrally provided on the inner side of the horizontal end of the U-shaped plate, and the top and bottom ends of the rack extend to the outside of the U-shaped plate to extend the meshing stroke, ensuring that the U-shaped plate slides to a position where the password sensing button and the fingerprint reader are completely exposed.

[0009] Furthermore, the inner walls of the front cover and the rear cover of the door lock are symmetrically installed with multiple mounting plates, and the front cover and the rear cover of the door lock are respectively installed on the outside and inside of the door through the mounting plates and bolts; the lock core runs through the thickness direction of the door and is installed in a groove opened in the door frame, and the front cover and the rear cover of the door lock are rotatably connected to a handle on the side away from the lock core, and the handle is connected to the lock core and the lock tongue / latch system through an internal connecting rod.

[0010] Furthermore, a protective shell is provided on the periphery of the small drive motor, and a ventilation grille is installed on one side of the protective shell.

[0011] Furthermore, a keyhole is provided on the front side of the front cover of the door lock.

[0012] Furthermore, a buzzer is installed below the keyhole.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention features a recognition camera that automatically adjusts its angle by rotating up and down. When a taller or shorter person approaches and their face is outside the camera's scanning range, a small drive motor rotates gear 1, which in turn drives the ring gear and connecting shaft 2. This allows the camera to rotate up and down within the U-shaped housing to accommodate people of varying heights. When a person approaches the camera's scanning range, the camera automatically adjusts its angle to scan and identify their face, eliminating the need for manual adjustment, improving efficiency and saving time.

[0015] Furthermore, the present invention provides a protective baffle in the password sensing button area. When the recognition camera scans and identifies the face of a person and passes, the small motor drives gear two to rotate. When gear two rotates, it drives the protective frame structure composed of a U-shaped plate, a connecting plate and a protective baffle to move downward along the rectangular limiting hole through the meshing rack, thereby facilitating the exposure of the password sensing button and the fingerprint identifier, so that the person can open the door lock by entering the correct password or fingerprint. On the contrary, when the recognition camera scans and identifies the face of a person and fails to pass, the protective baffle will be in a closed state. This can prevent illegal personnel from arbitrarily trying to crack the password sensing button and fingerprint identifier, thereby improving security.

[0016] Furthermore, the present invention also provides a keyhole as a reliable backup solution when the electronic unlocking method fails, and a buzzer is smoothly set. When the user enters an incorrect password, an abnormal operation is detected, or there is an unauthorized unlocking attempt, the buzzer will sound to alert the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention after removing the protective mechanism;

[0019] Figure 3 It is a partial structural explosion diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the top view of the front end cover of the door lock of the present invention;

[0021] Figure 5 This is a schematic diagram of the rear view structure of the front end cover of the door lock of the present invention;

[0022] Figure 6 Schematic diagram of the connection structure between the guard frame structure and the rack in the protection mechanism.

[0023] In the figure: 1-front cover of the door lock; 2-password sensing button; 3-fingerprint recognition; 4-U-shaped shell; 5-identification camera; 6-connecting shaft 1; 7-connecting shaft 2; 8-gear ring; 9-protective shell; 10-small drive motor; 11-gear 1; 12-protective mechanism; 13-U-shaped plate; 14-rack; 15-fixing plate; 16-small motor; 17-gear 2; 18-rectangular limiting hole; 19-connecting plate; 20-protective baffle; 21-limiting slide; 22-limiting slider; 23-lock cylinder; 24-rear cover of the door lock; 25-handle; 26-keyhole; 27-buzzer; 28-mounting plate; 29-ventilation grille. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 、 2 As shown in Figures 3 and 4, the smart door lock capable of intelligently identifying human bodies described in this embodiment comprises a door lock front end cover 1, a lock core 23 and a door lock rear end cover 24, wherein the lock core 23 runs through the thickness direction of the door and is installed in a groove opened in the door frame, and the inner side walls of the door lock front end cover 1 and the door lock rear end cover 24 are symmetrically installed with multiple mounting plates 28, and the door lock front end cover 1 and the door lock rear end cover 24 are respectively installed on the outside and inside of the door through the mounting plates 28 and bolts; the door lock front end cover 1 and the door lock rear end cover 24 are rotatably connected to the side away from the lock core 23 with a handle 25, and the handle 25 is connected to the lock core 23 and the lock tongue / latch system through an internal connecting rod, so that the user can control the extension and retraction of the lock tongue when rotating the handle, thereby realizing the door opening or closing function.

[0026] A U-shaped housing 4 is located on the front of the front cover 1 of the door lock. Inside this housing is an identification camera 5, which is movably connected to the inner wall of the U-shaped housing 4. The camera 5 automatically adjusts its angle by rotating it up and down to accommodate people of different heights. The identification camera 5 is electrically connected to an existing biometric recognition device. When a user approaches, the camera 5 automatically adjusts its angle up and down, working in conjunction with the biometric recognition device to scan the user's face. The biometric recognition device recognizes the person's face and, upon successful recognition, directly outputs a signal to control the actuator, unlocking the door lock.

[0027] On both sides of the recognition camera 5, there are respectively provided with a connecting shaft 1 6 and a connecting shaft 2 7 extending to the interior of the U-shaped shell 4, and a ring gear 8 is provided on the outer surface of the connecting shaft 2 7. A small drive motor 10 is provided on the outside of the U-shaped shell 4. The small drive motor 10 is electrically connected to the microcontroller of the biometric recognition device. The driving end of the small drive motor 10 extends to the interior of the U-shaped shell 4 and is installed with a gear 11 that is meshed with the ring gear 8. When the user is taller or shorter and the face is not within the scanning and recognition range of the recognition camera 5, the microcontroller of the biometric recognition device drives the small drive motor 10 to operate, and the small drive motor 10 drives the gear 11 to rotate, and the gear 11 drives the ring gear 8 and the connecting shaft 2 7 to rotate, thereby facilitating the recognition camera 5 to rotate inside the U-shaped shell 4 to capture and scan the human face.

[0028] A protective shell 9 is provided on the periphery of the small drive motor 10, and a ventilation grille 29 is installed on one side of the protective shell 9. The protective shell is used to protect the small drive motor 10 from the influence of the external environment. The ventilation grille 29 can ensure air circulation, help the motor dissipate heat, and prevent performance degradation or damage caused by overheating.

[0029] A password sensor button 2 and a fingerprint reader 3 are located on the front side of the door lock front cover 1, below the U-shaped housing 4. Once the user enters the correct password or passes fingerprint recognition, the door lock can be intelligently unlocked. A protective mechanism 12 is provided around the password sensor button 2 and the fingerprint reader 3, which is slidably connected to the door lock front cover 1. The protective mechanism 12 is electrically connected to the microcontroller of the biometric recognition device. This effectively protects the password sensor button 2 and the fingerprint reader 3, preventing unauthorized attempts to crack the key and providing a certain degree of dust protection.

[0030] A keyhole 26 is also provided on the front side of the front cover 1 of the door lock, and a buzzer 27 is installed below the keyhole 26; the function of the keyhole 26 is to facilitate the user to insert a mechanical key and enter the lock cylinder 23 through it, so as to open the door lock by a traditional key method, which serves as a reliable backup solution when the electronic unlocking method fails; and the buzzer 27 is used to provide sound feedback and security warnings. For example, when the user enters an incorrect password, an abnormal operation is detected, or there is an unauthorized unlocking attempt, the buzzer 27 will sound a warning to the user.

[0031] like Figure 4 、 5As shown in Figures 6 and 7, the protective mechanism 12 includes a U-shaped plate 13 arranged inside the front cover 1 of the door lock. Limiting sliders 22 are integrally provided on the left and right sides of the U-shaped plate 13. A limiting slot 21 is provided on the inner side wall of the front cover 1 of the door lock corresponding to the limiting slider 22. The limiting slot 21 is a T-shaped structural slot. The limiting slot 21 is adapted to the limiting slider 22. The limiting slider 22 slides smoothly in the limiting slot 21, which can effectively guide the movement direction of the U-shaped plate 13, ensure its movement trajectory is accurate, and improve the stability of the U-shaped plate 13 when it moves inside the front cover 1 of the door lock. Figure 1 、 4 As shown, rectangular limiting holes 18 are respectively provided on the left and right sides of the front end cover 1 of the door lock, and a connecting plate 19 connected to the vertical end of the U-shaped plate 13 is provided in each rectangular limiting hole 18. A protective baffle 20 is provided on the front side of the front end cover 1 of the door lock, and the U-shaped plate 13 and the protective baffle 20 are connected to form a surrounding frame structure through the connecting plate 19. When the U-shaped plate 13 moves up and down, the protective baffle 20 can be driven to move together, thereby facilitating the opening or closing of the password sensing button 2 and the fingerprint identifier 3.

[0032] A small motor 16 is mounted on the inner wall of the front cover 1 of the door lock via a fixed plate 15. The small motor 16 is electrically connected to the microcontroller of the biometric identification device. A gear 2 17 is provided at the driving end of the small motor 16. A rack 14 is integrally provided on the inner side of the horizontal end of the U-shaped plate 13, meshing with the gear 2 17. The top and bottom ends of the rack 14 extend to the outside of the U-shaped plate 13 to extend the meshing stroke, ensuring that the U-shaped plate 13 slides to a position where the password sensing button 2 and the fingerprint reader 3 are completely exposed. When the biometric identification device successfully recognizes a person's face, the microcontroller of the biometric identification device drives the small motor 16 to operate, and the small motor 16 drives the gear 2 17 to rotate. When the gear 2 17 rotates, it engages the rack 14, driving the protective frame structure composed of the U-shaped plate 13, the connecting plate 19, and the protective baffle 20 to move downward along the rectangular limit hole 18, thereby facilitating the exposure of the password sensing button 2 and the fingerprint reader 3, allowing a person to open the door lock by entering the correct password or fingerprint.

[0033] Working principle: Under normal conditions, the protection mechanism 12 is closed, and the recognition camera 5 is facing the front of the gate. When a person approaches the recognition camera 5 and enters the scanning and recognition range, the recognition camera 5 will scan and recognize him. When the person is taller or shorter and his face is out of the scanning and recognition range of the recognition camera 5, the small drive motor 10 drives the gear 1 11 to rotate, thereby driving the gear ring 8 and the connecting shaft 2 7 to rotate, so that the recognition camera 5 can rotate up and down inside the U-shaped shell 4 to accommodate people of different heights. When the recognition camera 5 scans and recognizes the person's face and passes, The small motor 16 drives gear 2 17 to rotate. When gear 2 17 rotates, it drives the protective frame structure composed of the U-shaped plate 13, the connecting plate 19 and the protective baffle 20 to move downward along the rectangular limit hole 18 through the meshing rack 14, thereby facilitating the exposure of the password sensing button 2 and the fingerprint identifier 3, so that people can open the door lock by entering the correct password or fingerprint; on the contrary, when the recognition camera 5 scans and recognizes the person's face and fails, the protective baffle 20 will be in a closed state, which can prevent illegal personnel from trying to crack the password sensing button 2 and the fingerprint identifier 3 at will, thereby improving security.

[0034] The device has a simple structure and is easy to operate. When a person approaches the scanning and recognition range of the recognition camera 5, the recognition camera 5 can automatically adjust the angle to scan and recognize the face without manual adjustment by the person, thereby improving efficiency and saving time, and having good overall practicality.

Claims

1. A smart door lock capable of intelligently identifying the human body, characterized in that: The invention comprises a door lock front end cover (1), a lock core (23) and a door lock rear end cover (24); a U-shaped housing (4) is provided on the front side of the top of the door lock front end cover (1); an identification camera (5) electrically connected to a biometric identification device is provided inside the U-shaped housing (4); the identification camera (5) is movably connected to the inner wall of the U-shaped housing (4); and the angle is automatically adjusted by rotating up and down; The identification camera (5) is provided with a connecting shaft 1 (6) and a connecting shaft 2 (7) on both sides thereof, which extend into the interior of the U-shaped housing (4); a gear ring (8) is provided on the outer surface of the connecting shaft 2 (7); a small drive motor (10) is provided on the outer side of the U-shaped housing (4); the small drive motor (10) is electrically connected to the microcontroller of the biometric identification device; the driving end of the small drive motor (10) extends into the interior of the U-shaped housing (4) and is provided with a gear 1 (11) meshed with the gear ring (8); when the user is taller or shorter and his face is not within the scanning and identification range of the identification camera (5), the microcontroller of the biometric identification device drives the small drive motor (10) to operate, the small drive motor (10) drives the gear 1 (10) to rotate, and the gear 1 (10) drives the gear ring (8) and the connecting shaft 2 (7) to rotate, thereby realizing the angle adjustment of the identification camera (5) to capture and scan the human face.

2. The intelligent door lock capable of intelligently identifying human bodies according to claim 1, characterized in that: A password sensing button (2) and a fingerprint identifier (3) are provided on the front side of the door lock front end cover (1) below the U-shaped housing (4); a protective mechanism (12) is provided on the periphery of the password sensing button (2) and the fingerprint identifier (3) and is slidably connected to the door lock front end cover (1); the protective mechanism (12) is electrically connected to a microcontroller of a biometric identification device; when the biometric identification device successfully performs face recognition, the protective mechanism (12) can slide to expose the password sensing button (2) and the fingerprint identifier (3).

3. The intelligent door lock capable of intelligently identifying human bodies according to claim 2, characterized in that: The protection mechanism (12) comprises a U-shaped plate (13) arranged inside the front end cover (1) of the door lock, and limit slide blocks (22) are integrally provided on the left and right sides of the U-shaped plate (13), and matching limit slide grooves (21) are provided at positions corresponding to the limit slide blocks (22) on the inner side wall of the front end cover (1) of the door lock; The door lock front end cover (1) is provided with rectangular limiting holes (18) on the left and right sides respectively, and a connecting plate (19) connected to the vertical end of the U-shaped plate (13) is provided in each rectangular limiting hole (18). A protective baffle (20) is provided on the front side of the door lock front end cover (1). The U-shaped plate (13) and the protective baffle (20) are connected to form a surrounding protective frame structure through the connecting plate (19). When the U-shaped plate (13) moves up and down along the limiting sliding groove (21), the protective frame structure is driven to move together. A small motor (16) is installed on the inner wall side of the front end cover (1) of the door lock by setting a fixing plate (15). The small motor (16) is electrically connected to the microcontroller of the biometric identification device. A second gear (17) is provided at the driving end of the small motor (16). A rack (14) meshing with the second gear (17) is integrally provided on the inner side of the horizontal end of the U-shaped plate (13). The top and bottom ends of the rack (14) are extended to the outside of the U-shaped plate (13) to extend the meshing stroke, ensuring that the U-shaped plate (13) slides to a position where the password sensing button (2) and the fingerprint identifier (3) are completely exposed.

4. A smart door lock capable of intelligently identifying a human body according to any one of claims 1 to 3, characterized in that: The inner side walls of the door lock front cover (1) and the door lock rear cover (24) are symmetrically mounted with a plurality of mounting plates (28), and the door lock front cover (1) and the door lock rear cover (24) are mounted on the outside and inside of the door respectively through the mounting plates (28) and bolts; the lock core (23) runs through the thickness direction of the door and is mounted in a groove provided in the door frame; the door lock front cover (1) and the door lock rear cover (24) are both rotatably connected to a handle (25) on the side away from the lock core (23); the handle (25) is connected to the lock core (23) and the deadbolt / latch system through an internal connecting rod.

5. The intelligent door lock capable of intelligently identifying human bodies according to claim 4, characterized in that: A protective shell (9) is provided on the periphery of the small drive motor (10), and a ventilation grille (29) is installed on one side of the protective shell (9).

6. The intelligent door lock capable of intelligently identifying human bodies according to claim 5, characterized in that: A key hole (26) is also provided on the front side of the door lock front end cover (1).

7. The intelligent door lock capable of intelligently identifying human bodies according to claim 6, characterized in that: A buzzer (27) is installed below the keyhole (26).

Images