Multi-point face recognition device

Abstract

The utility model discloses a multipoint face recognition device, which comprises a recognition machine main body and a camera body, a protective shell is fixed on the back of the recognition machine main body, two adjusting mechanisms distributed up and down are installed in the protective shell, each adjusting mechanism comprises a first rotating shaft and a rotating frame, the first rotating shaft is rotatably installed in the protective shell, and the rotating frame is fixed on the first rotating shaft. Camera bodies are mounted on the rotating frames; the two adjusting mechanisms are in transmission connection through a transmission assembly, and the rotating directions of the two first rotating shafts are opposite. The two adjusting mechanisms are driven to rotate synchronously and reversely through the driving mechanism and the transmission assembly, so that the pitching angle of the movable camera body is adjusted, and accurate face recognition can be conveniently carried out on people at different heights; when the device does not need to be used, the rotating frame and the camera body can be conveniently stored in the protective shell, the occupied space of the device can be reduced, and the camera body can be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of face recognition, in particular to a multi-point face recognition device. Background Art

[0002] Face recognition is a biometric technology that identifies people based on their facial features. It uses a camera or camera body to collect images or video streams containing faces, automatically detects and tracks faces in images, and then performs facial recognition on the detected faces. This is also commonly known as portrait recognition or facial recognition.

[0003] Existing multi-point face recognition devices can recognize faces at multiple points by using multiple camera bodies, thereby increasing the accuracy of face recognition. Some multi-point face recognition devices have the problem of being unable to automatically adjust the angle. For people of different heights, it is impossible to adjust the appropriate angle to aim at the face for face recognition. In some other multi-point face recognition devices, multiple camera bodies are movably arranged outside the main body, and the angle of the camera body needs to be manually adjusted, which is inconvenient to use. When not in use, the camera body is exposed and easily damaged, and it occupies a large space, making it inconvenient to store.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0005] Based on this, it is necessary to provide a multi-point face recognition device to address the above technical problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a multi-point face recognition device, including a recognition machine body and a camera body, a protective shell is fixed to the back of the recognition machine body, two adjustment mechanisms distributed up and down are installed in the protective shell, the adjustment mechanism includes a first rotating shaft and a rotating frame, the first rotating shaft is rotatably installed in the protective shell, the rotating frame is fixed on the first rotating shaft, and the camera body is installed on the rotating frame; the two adjustment mechanisms are connected by a transmission assembly, and the rotation directions of the two first rotating shafts are opposite.

[0007] Preferably, the transmission assembly includes a second rotating shaft, a first bevel gear and a second bevel gear, the second rotating shaft is rotatably mounted in the protective shell, the first bevel gear is fixedly mounted on the first rotating shaft, two second bevel gears are fixed on the second bevel gear, and the first bevel gear is meshingly connected with the second bevel gear.

[0008] Preferably, it also includes a driving mechanism, which includes a driving motor, a worm wheel, and a worm. The driving motor is fixedly installed in the protective shell, and the worm is rotatably installed in the protective shell. The output end of the driving motor is connected to the worm through a coupling, and the worm wheel is fixedly installed on the first rotating shaft, and the worm wheel is meshingly connected with the worm.

[0009] Preferably, an opening is formed in the protective shell for the rotary frame and the camera body to enter and exit.

[0010] Preferably, a support rod is fixed to the bottom end of the protective shell, and a base is fixed to the lower end of the support rod.

[0011] Preferably, an angle sensor is installed inside the protective shell, and the angle sensor is connected to one of the first rotating shafts.

[0012] Beneficial effects of this technical solution: The driving mechanism and the transmission component drive the two adjusting mechanisms to rotate synchronously and in opposite directions, thereby adjusting the pitching angle of the moving camera body, facilitating accurate face recognition of people at different heights; when the device is not needed, the rotary frame and the camera body can be conveniently stored in the protective shell, which can not only reduce the occupied space of the device, but also protect the camera body. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0014] Figure 2 is Figure 1 a cross-sectional view taken along line A-A in

[0015] Figure 3 is another state diagram of an embodiment of the present invention (the camera body is retracted into the protective shell);

[0016] Figure 4 is Figure 2 a cross-sectional view taken along line B-B in

[0017] Figure 5 is a rear view of an embodiment of the present invention (the camera body is retracted into the protective shell);

[0018] In the figure, 1, the main body of the recognition machine; 2, the camera body; 3, the protective shell; 31, the opening; 4, the adjusting mechanism; 41, the first rotating shaft; 42, the rotary frame; 5, the transmission component; 51, the second rotating shaft; 52, the first bevel gear; 53, the second bevel gear; 6, the driving mechanism; 61, the driving motor; 62, the worm gear; 63, the worm; 7, the support rod; 8, the base; 9, the angle sensor. Detailed Embodiments

[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0020] See also Figures 1 to 5 , Figure 1 and Figure 3 All of them are cross-sectional views from a rear-view perspective. The embodiment of the present application provides a multi-point face recognition device, including a recognition machine body 1 and a camera body 2. The camera body 2 is provided with a camera for shooting and a fill light for illumination. A protective shell 3 is fixed to the back of the recognition machine body 1. Two adjustment mechanisms 4 distributed up and down are installed in the protective shell 3. The adjustment mechanism 4 includes a first rotating shaft 41 and a rotating frame 42. The first rotating shaft 41 is rotatably installed in the protective shell 3. Two rotating frames 42 are fixed on the first rotating shaft 41. The rotating frames 42 are both equipped with camera bodies 2. The two adjustment mechanisms 4 are connected by a transmission assembly 5. The rotation directions of the two first rotating shafts 41 are opposite. A total of four camera bodies 2 are set, and the shooting angle of the camera body 2 can be adjusted synchronously to increase work efficiency and the accuracy of face recognition.

[0021] The transmission assembly 5 includes a second rotating shaft 51, a first bevel gear 52 and a second bevel gear 53. The second rotating shaft 51 is rotatably mounted in the protective shell 3. The first bevel gear 52 is fixedly mounted on the first rotating shaft 41. Two second bevel gears 53 are fixed on the second bevel gear 53. The first bevel gear 52 is meshed and connected with the second bevel gear 53. By driving one of the first rotating shafts 41 to rotate, the first rotating shaft 41 drives the second bevel gear 53 and the second rotating shaft 51 to rotate through the first bevel gear 52, thereby driving the other first rotating shaft 41 to rotate.

[0022] In order to facilitate driving the first rotating shaft 41 to rotate, the present embodiment is further provided with a driving mechanism 6, which includes a driving motor 61, a worm wheel 62, and a worm 63. The driving motor 61 is fixedly installed in the protective shell 3, and the worm 63 is rotatably installed in the protective shell 3. The output end of the driving motor 61 is connected to the worm 63 through a coupling, and the worm wheel 62 is fixedly installed on the first rotating shaft 41, and the worm wheel 62 is meshedly connected with the worm 63. The driving motor 61 drives the worm 63 to rotate, so that the worm 63 drives the worm wheel 62 and the first rotating shaft 41 to rotate, and the first rotating shaft 41 drives the other first rotating shaft 41 to rotate through the transmission assembly 5, so that the two first rotating shafts 41 rotate in opposite directions and synchronously.

[0023] To facilitate the entry and exit of the camera body 2 from the protective housing 3, an opening 31 is provided on the protective housing 3 for the rotary frame 42 and the camera body 2 to enter and exit. When the rotary frame 42 and the camera body 2 rotate, they can enter and exit the protective housing 3 through the opening 31.

[0024] To facilitate the support of the protective housing 3 and the recognition machine main body 1, a support rod 7 is fixed to the bottom end of the protective housing 3, and a base 8 is fixed to the lower end of the support rod 7.

[0025] To facilitate the detection of the rotation angle of the camera body 2, an angle sensor 9 is installed in the protective housing 3, and the angle sensor 9 is connected to one of the first rotating shafts 41. The angle sensor 9 obtains the angle of the camera body 2 by detecting the rotation angle of the first rotating shaft 41.

[0026] Working principle: When in use, the driving motor 61 drives the worm 63, the worm gear 62, and the first rotating shaft 41 to rotate. The first rotating shaft 41 drives another first rotating shaft 41 to rotate through the transmission assembly 5, so that the two first rotating shafts 41 rotate in opposite directions and synchronously. The first rotating shaft 41 drives the rotary frame 42 and the camera body 2 to move out of the protective housing 3. The angle sensor 9 detects the rotation angle of the camera body 2 when it is rotated out. When the rotation angle of the camera body 2 is appropriate, the driving motor 61 stops working, and the pitching angles of the four camera bodies 2 are adjusted synchronously, which is simple and convenient; the worm gear 62 and the worm 63 can play a self-locking role, so that the camera body 2 maintains an appropriate rotation angle, which is convenient for face recognition operations; according to people of different heights, by adjusting the pitching angle of the camera body 2, it is convenient to capture faces at different heights.

[0027] When the device is not needed, the driving motor 61 drives the worm 63, the worm gear 62, and the first rotating shaft 41 to rotate. The first rotating shaft 41 drives the rotary frame 42 and the camera body 2 to enter the protective housing 3 through the opening 31, realizing the storage of the rotary frame 42 and the camera body 2, which can not only reduce the occupied space of the device, but also play a protective role for the camera body 2.

[0028] It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship 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, and thus should not be construed as a limitation on the present utility model.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0031] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. 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.

Claims

1. A multi-point face recognition device, comprising a recognition machine main body (1) and a camera body (2), characterized in that, A protective shell (3) is fixed on the back of the recognition machine body (1), and two adjustment mechanisms (4) are installed in the protective shell (3) and are distributed up and down. The adjustment mechanism (4) comprises a first rotating shaft (41) and a rotating frame (42). The first rotating shaft (41) is rotatably installed in the protective shell (3), and the rotating frame (42) is fixed on the first rotating shaft (41). The rotating frame (42) is installed on each of the camera bodies (2). The two adjustment mechanisms (4) are connected by transmission via a transmission assembly (5), and the two first rotating shafts (41) rotate in opposite directions.

2. The multi-point face recognition device according to claim 1, wherein The transmission assembly (5) comprises a second rotating shaft (51), a first bevel gear (52) and a second bevel gear (53); the second rotating shaft (51) is rotatably mounted in the protective housing (3); the first bevel gear (52) is fixedly mounted on the first rotating shaft (41); two second bevel gears (53) are fixed on the second bevel gear (53); and the first bevel gear (52) is meshingly connected with the second bevel gear (53).

3. The multi-point face recognition device according to claim 1, wherein The invention also comprises a driving mechanism (6), the driving mechanism (6) comprising a driving motor (61), a worm wheel (62), and a worm (63), the driving motor (61) being fixedly mounted in the protective shell (3), the worm wheel (63) being rotatably mounted in the protective shell (3), the output end of the driving motor (61) being connected to the worm wheel (63) via a coupling, the worm wheel (62) being fixedly mounted on the first rotating shaft (41), and the worm wheel (62) being meshingly connected to the worm wheel (63).

4. The multi-point face recognition device according to claim 1, wherein The protective shell (3) is provided with an opening (31) for the rotating frame (42) and the camera body (2) to enter and exit.

5. The multi-point face recognition device according to claim 1, wherein A support rod (7) is fixed to the bottom end of the protective shell (3), and a base (8) is fixed to the lower end of the support rod (7).

6. The multi-point face recognition device according to claim 1, characterized in that An angle sensor (9) is installed in the protective shell (3), and the angle sensor (9) is connected to one of the first rotating shafts (41).

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