A light-controllable face recognition access control device

Abstract

The invention discloses a controllable light type face recognition access control device, which belongs to the field of face recognition. A hollow light-transmitting plate with a shading strip-shaped capsule inside is provided. In normal use, the shading rate of the hollow light-transmitting plate is at the maximum level, and strong light outdoors is effectively shielded. When light is insufficient, a person appropriately presses the pressure plate with his feet. When the pressing force of the foot is small, the capsule sleeve is stretched by a slide plate, the length is elongated and the thickness is reduced, and the gap between adjacent shading strip-shaped capsules is increased, thereby realizing adaptive primary reduction of the shading rate of the hollow light-transmitting plate. When the pressing force increases to a certain level, the capsule sleeve and the end ball are pulled at the same time, and the capsule sleeve not only has a reduced thickness, but also shortens its length in a direction close to a fixed plate, and loses its shading effect on light, thereby realizing secondary reduction of the shading rate of the hollow light-transmitting plate. Through the above-mentioned necessary adjustment process of the shading rate of the hollow light-transmitting plate, rapid and effective recognition of faces by cameras can be realized.

Description

Technical Field

[0001] The present invention relates to the field of face recognition, and more specifically to a light-controllable face recognition access control device. Background Art

[0002] The entrance and exit security management system is a new modern security management system, which integrates microcomputer automatic identification technology and modern security management measures. It involves many new technologies such as electronics, machinery, optics, computer technology, communication technology, biotechnology, etc. It is an effective measure to solve the security management of the entrances and exits of important departments. It is suitable for various confidential departments, such as banks, hotels, computer rooms, armories, confidential rooms, offices, intelligent communities, factories, etc.

[0003] With the development of society, many places have used facial recognition access control to replace traditional password and card swiping access control. Facial recognition access control is an offline or networked facial recognition access control product. It is positioned in the mid-to-high-end access control market, replacing the card swiping and fingerprint access control products on the market.

[0004] When the facial recognition access control system installed outdoors is in use, it is easily affected by the strong light outdoors, making it difficult to successfully recognize the face. Therefore, it is generally necessary to set up a shading device to block the light. However, in periods with weak light, such as at night, sufficient light is required and no shading operation is required. However, the existing shading devices are generally inconvenient to adjust, and it is difficult to adjust the light as needed. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a controllable light-type face recognition access control device, which is provided with a hollow light-transmitting plate containing a shading strip capsule inside. In normal use, the shading rate of the hollow light-transmitting plate is at the maximum level, effectively blocking the strong light outside. When the light is insufficient, the person presses the pressure plate appropriately with his feet. When the pressure of the foot is small, the capsule cover is stretched by the slide plate, the length is elongated and the thickness is reduced, and the gap between adjacent shading strip capsules is increased, thereby realizing an adaptive first-level reduction in the shading rate of the hollow light-transmitting plate. When the pressure of the foot increases to a certain level, the capsule cover and the end ball are pulled at the same time, and the capsule cover not only reduces its thickness, but also shortens its length in the direction close to the fixed plate, loses its shading effect on the light, and realizes a second-level reduction in the shading rate of the hollow light-transmitting plate. Through the above-mentioned necessary adjustment process of the shading rate of the hollow light-transmitting plate, the camera can realize rapid and effective recognition of faces.

[0007] 2. Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A controllable light-type face recognition access control device comprises a device body, a camera is installed at the front end of the device body, the upper end of the device body is fixedly connected to a hollow light-transmitting plate, the interior of the hollow light-transmitting plate is fixedly connected to a fixed plate, the rear side of the fixed plate is provided with a slide plate slidably connected to the interior of the hollow light-transmitting plate, a plurality of evenly distributed shading strip-shaped capsules are fixedly connected between the front end of the slide plate and the inner wall of the hollow light-transmitting plate, the shading strip-shaped capsules pass through the fixed plate and are slidably connected to the interior, a plurality of evenly distributed compression springs are fixedly connected between the rear end of the slide plate and the inner wall of the hollow light-transmitting plate, the rear end of the slide plate is also fixedly connected to a pull rope, the front end of the device body is provided with a pressure plate and a pair of limit frames, the limit frames are fixedly connected to the device body, the pressure plate is slidably connected between the pair of limit frames, and the pull rope movably passes through the hollow light-transmitting plate and the device body and is fixedly connected to the upper end of the pressure plate.

[0010] Furthermore, the shading strip bag includes a bag cover, one end of the bag cover is fixedly connected to an end ball, the other end of the bag cover is fixedly connected to a ball shell, a net tube is fixedly connected between the ball shell and the slide board, the ball shell is located between the fixed plate and the slide board, and the bag cover moves through the interior of the fixed plate.

[0011] Furthermore, a thin hard rod is provided on the inner side of the bag sleeve, one end of the thin hard rod away from the fixed plate is fixedly connected to the inner wall of the hollow light-transmitting plate, and the end ball is slidably connected to the outer end of the thin hard rod.

[0012] Furthermore, a magnetic sheet is fixedly connected to the inner wall of the hollow light-transmitting plate away from the compression spring, and the end ball is made of ferromagnetic material.

[0013] Furthermore, a flexible sleeve is fixedly connected between the spherical shell and the fixed plate, the capsule sleeve is located inside the flexible sleeve, and the spherical shell is provided with a main air hole and a secondary air hole which are located inside the capsule sleeve and the mesh tube respectively.

[0014] Furthermore, the bag sleeve is made of elastic material, and when the compression spring is in an initial state, the bag sleeve is in an expanded state.

[0015] Furthermore, a circular hole is provided at the rear end of the hollow light-transmitting plate, and the pull rope is slidably connected to the inner side of the circular hole.

[0016] Furthermore, a protrusion is fixedly connected to the outer end of the thin hard rod, and the protrusion is located between the end ball and the fixed plate.

[0017] Furthermore, a rope tube is fixedly connected between the rear end of the hollow light-transmitting plate and the rear end of the device body, the circular hole is located inside the tube opening of the rope tube, and the pull rope is slidably connected to the inside of the rope tube.

[0018] Furthermore, when the compression spring is in the initial state, the pull rope is in a normal straight state, and the height of the pressure plate is at a maximum value.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] (1) This scheme is provided with a hollow light-transmitting plate containing shading strip-shaped capsules inside. In normal use, the shading rate of the hollow light-transmitting plate is at the maximum extent, effectively blocking the strong light outside. When the light is insufficient, the personnel press the pressure plate appropriately with their feet, and drive the slide plate to move by the pull rope, so as to realize the adaptive adjustment of the light transmittance of the hollow light-transmitting plate. When the pressure of the foot is small, the capsule sleeve is stretched by the slide plate, the length is elongated and the thickness is reduced, and the gap between adjacent shading strip-shaped capsules is increased, so as to realize the adaptive first-level reduction of the shading rate of the hollow light-transmitting plate. When the pressure of the foot increases to a certain extent, the capsule sleeve and the end ball are pulled at the same time, and the capsule sleeve not only reduces the thickness, but also shortens the length in the direction close to the fixed plate, and loses the light shielding effect, thereby realizing the second-level reduction of the shading rate of the hollow light-transmitting plate. Through the above-mentioned necessary adjustment process of the shading rate of the hollow light-transmitting plate, the camera can realize rapid and effective recognition of human faces.

[0022] (2) When the pressing force is small, the slide plate drives the mesh tube and the spherical shell to move synchronously, generating a pulling force on the bag sleeve, stretching its length. At the same time, the distance between the fixed plate and the slide plate increases, and the air pressure decreases, so that the gas inside the bag sleeve passes through the spherical shell and the mesh tube into the area between the fixed plate and the slide plate. The thickness of the bag sleeve decreases, that is, the thickness of the shading strip bag decreases. As shown in the figure, the gap between adjacent shading strip bags increases, and more light is transmitted, so that the shading rate of the hollow light-transmitting plate is adaptively reduced, achieving a first-level light-transmitting effect.

[0023] (3) When the person continues to increase the pressure of the foot, the slide plate continues to move away from the fixed plate. When the bag sleeve is stretched to a certain length, the pulling force of the bag sleeve on the end ball is greater than the magnetic attraction of the magnetic sheet on the end ball. The bag sleeve will drive the end ball to move away from the magnetic sheet. The gas inside the bag sleeve continues to flow between the fixed plate and the slide plate. As shown in the figure, the bag sleeve not only reduces its thickness, but also shortens its length in the direction close to the fixed plate, losing its shielding effect on light, thereby reducing the shading rate depth of the hollow light-transmitting plate and achieving a secondary light-transmitting effect.

[0024] (4) When the foot releases the pressure plate, the elastic recovery of the compression spring pushes the slide plate back to its initial position, and the gas between the fixed plate and the slide plate enters the bag again, causing the bag and the end ball to return to their initial state and position, that is, the shading rate of the hollow light-transmitting plate automatically returns to its initial maximum level. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 It is a side structural schematic diagram of the present invention;

[0027] Figure 3 The side structure of the hollow light-transmitting plate of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 4 The side structure of the hollow light-transmitting plate of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 5 It is a schematic diagram of the partial side structure inside the hollow light-transmitting plate of the present invention;

[0030] Figure 6 It is a schematic diagram of the partial structure inside the hollow light-transmitting plate when the skateboard of the present invention moves;

[0031] Figure 7 for Figure 6 The structural diagram at A in the middle;

[0032] Figure 8 The schematic diagram of the structure inside the hollow light-transmitting plate of the skateboard of the present invention during initial movement Figure 1 ;

[0033] Fig. 9 The schematic diagram of the structure inside the hollow light-transmitting plate when the slide plate of the present invention moves deeply Figure 2 ;

[0034] Fig.10 for Fig. 9 Schematic diagram of the structure at B in the figure.

[0035] Description of the numbers in the figure:

[0036] 1 device body, 2 camera, 3 hollow light-transmitting plate, 301 magnetic sheet, 302 round hole, 4 light-shielding strip capsule, 41 capsule sleeve, 42 end ball, 43 thin hard rod, 44 flexible sleeve, 45 ball shell, 46 network tube, 47 protrusion, 5 fixed plate, 6 slide plate, 7 pull rope, 8 compression spring, 9 rope tube, 10 pressure plate, 11 limit frame. DETAILED DESCRIPTION

[0037] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example:

[0041] See also Figure 1 and Figure 2 A light-controllable face recognition access control device includes a device body 1, a camera 2 is installed at the front end of the device body 1, a hollow light-transmitting plate 3 is fixedly connected to the upper end of the device body 1, and a fixed plate 5 is fixedly connected to the interior of the hollow light-transmitting plate 3. Please refer to Figure 3 A slide plate 6 is provided on the rear side of the fixed plate 5, which is slidably connected to the inside of the hollow light-transmitting plate 3. The slide plate 6 and the hollow light-transmitting plate 3 are in a surface contact sealing state. A plurality of evenly distributed shading strip capsules 4 are fixedly connected between the front end of the slide plate 6 and the inner wall of the hollow light-transmitting plate 3. The shading strip capsules 4 penetrate the fixed plate 5 and are slidably connected to the inside thereof. A plurality of evenly distributed compression springs 8 are fixedly connected between the rear end of the slide plate 6 and the inner wall of the hollow light-transmitting plate 3. A pull rope 7 is also fixedly connected to the rear end of the slide plate 6.

[0042] Combination Figure 1 , Figure 2 and Figure 3A pressure plate 10 and a pair of limit frames 11 are provided at the front end of the device body 1. The limit frames 11 are fixedly connected to the device body 1. The pressure plate 10 is slidably connected between the pair of limit frames 11. The pull rope 7 movably passes through the hollow light-transmitting plate 3 and the device body 1 and is fixedly connected to the upper end of the pressure plate 10. When a person stands at the front end of the device body 1 and performs face recognition through the camera 2, if it is found that the camera 2 is difficult to recognize successfully, the person can step on the pressure plate 10 with one foot and press it downward to change the shape and position of the shading strip capsule 4, that is, adjust the transmittance of the shading strip capsule 4 to light, thereby simply and quickly adjusting the light and facilitating the smooth recognition of the camera 2.

[0043] See also Figure 4 and Figure 5 The shading strip capsule 4 includes a capsule cover 41, one end of the capsule cover 41 is fixedly connected to an end ball 42, the other end of the capsule cover 41 is fixedly connected to a ball shell 45, a mesh tube 46 is fixedly connected between the ball shell 45 and the slide plate 6, the ball shell 45 is located between the fixed plate 5 and the slide plate 6, the capsule cover 41 is movable through the interior of the fixed plate 5, a thin hard rod 43 is provided on the inner side of the capsule cover 41, the end of the thin hard rod 43 away from the fixed plate 5 is fixedly connected to the inner wall of the hollow light-transmitting plate 3, the end ball 42 is slidably connected to the outer end of the thin hard rod 43, and a magnetic sheet 301 is fixedly connected to the inner wall of the hollow light-transmitting plate 3 away from the compression spring 8. The end ball 42 is made of ferromagnetic material, and the magnetic sheet 301 has a magnetic attraction on the end ball 42, so that the end ball 42 is located close to the magnetic sheet 301 in the initial state (such as Figure 4 shown).

[0044] See also Figure 6 A flexible sleeve 44 is fixedly connected between the ball shell 45 and the fixed plate 5, and the capsule sleeve 41 is located inside the flexible sleeve 44. Figure 7 The spherical shell 45 is provided with main air holes and auxiliary air holes which are respectively located on the inner sides of the bag sleeve 41 and the net tube 46. The bag sleeve 41 and the spherical shell 45 are communicated through the main air holes, and the spherical shell 45 and the net tube 46 are communicated through the auxiliary air holes, so that gas can flow in the area between the fixed plate 5 and the slide plate 6 and inside the bag sleeve 41; the flexible sleeve 44 seals the connection between the bag sleeve 41 and the fixed plate 5, so that the gas between the fixed plate 5 and the slide plate 6 is not easy to flow out through the connection, and gas can flow smoothly with the bag sleeve 41.

[0045] The bag cover 41 is made of elastic material. When the compression spring 8 is in the initial state, the bag cover 41 is in an expanded state, that is, the bag cover 41 is filled with a sufficient amount of air. At the same time, the pull rope 7 is in a normal straight state, and the height of the pressure plate 10 is at the maximum value. The fixed plate 5 and the slide plate 6 are in the closest state. At this time, the shading rate of the hollow light-transmitting plate 3 containing the shading strip bag 4 is at the maximum state.

[0046] When the light is dim and the person's foot presses the pressure plate 10, the pull rope 7 is pulled to pull the slide plate 6 backward, squeezing the compression spring 8. Figure 6 As shown, when the pressing force is small, the slide plate 6 drives the mesh tube 46 and the ball shell 45 to move synchronously, generating a pulling force on the bag sleeve 41, stretching its length. At the same time, the distance between the fixed plate 5 and the slide plate 6 increases, and the air pressure decreases, so that the gas inside the bag sleeve 41 passes through the ball shell 45 and the mesh tube 46 and enters the area between the fixed plate 5 and the slide plate 6, and the thickness of the bag sleeve 41 decreases, that is, the thickness of the light-shielding strip bag 4 decreases. Figure 8 As shown, the gap between adjacent light-shielding strip capsules 4 increases, and the light transmitted increases, so that the light-shielding rate of the hollow light-transmitting plate 3 is adaptively reduced, achieving a first-level light-transmitting effect;

[0047] When the person continues to increase the pressure of the foot, the slide plate 6 continues to move away from the fixed plate 5. When the bag cover 41 is stretched to a certain length, the pulling force of the bag cover 41 on the end ball 42 is greater than the magnetic attraction of the magnetic sheet 301 on the end ball 42, the bag cover 41 will drive the end ball 42 to move away from the magnetic sheet 301, and the gas inside the bag cover 41 continues to flow between the fixed plate 5 and the slide plate 6. Fig. 9 As shown, the bag sleeve 41 is not only reduced in thickness, but also shortened in length in the direction close to the fixed plate 5, losing the light shielding effect, thereby reducing the shading depth of the hollow light-transmitting plate 3 and achieving a secondary light-transmitting effect.

[0048] When the foot releases the pressure plate 10, the elastic recovery of the compression spring 8 will push the slide plate 6 back to its original position, and the gas between the fixed plate 5 and the slide plate 6 will enter the bag cover 41 again, so that the bag cover 41 and the end ball 42 also return to their original state and position, that is, the shading rate of the hollow light-transmitting plate 3 automatically returns to its initial maximum level.

[0049] See also Figure 5 A circular hole 302 is provided at the rear end of the hollow light-transmitting plate 3, and the pull rope 7 is slidably connected to the inner side of the circular hole 302. While providing a moving channel for the pull rope 7, the circular hole 302 can facilitate the gas circulation between the area where the compression spring 8 is located and the outside world, so that the air pressure in the area where the compression spring 8 is located remains stable, which facilitates the smooth movement of the slide plate 6; a through hole (not shown in the figure) communicating with the outside world is provided at the upper end of the hollow light-transmitting plate 3, and the through hole is located on the side of the fixed plate 5 away from the slide plate 6. The through hole is used to maintain the pressure stability of the area on the side of the fixed plate 5 away from the slide plate 6 during the deformation of the shading strip capsule 4, so that the shading strip capsule 4 can be deformed smoothly.

[0050] See also Fig. 9 and Fig.10The outer end of the thin hard rod 43 is fixedly connected with a protrusion 47, which is located between the end ball 42 and the fixed plate 5. The protrusion 47 limits the end ball 42, so that the end ball 42 is not easy to move excessively and separate from the thin hard rod 43. Supplementary explanation: When the pressure plate 10 is pressed to the lowermost position, the end ball 42 stays at a position close to the protrusion 47, please refer to Figure 2 A rope tube 9 is fixedly connected between the rear end of the hollow light-transmitting plate 3 and the rear end of the device body 1. The round hole 302 is located on the inner side of the tube mouth of the rope tube 9. The pull rope 7 is slidably connected to the inside of the rope tube 9. The rope tube 9 limits and protects the pull rope 7.

[0051] The present invention provides a hollow light-transmitting plate 3 with a light-shielding strip-shaped capsule 4 inside. In normal use, the light-shielding rate of the hollow light-transmitting plate 3 is at the maximum level, effectively shielding the strong light outside. When the light is insufficient, the person appropriately presses the pressure plate 10 with his feet, and drives the slide plate 6 to move through the pull rope 7, so as to realize the adaptive adjustment of the light transmittance of the hollow light-transmitting plate 3. When the pressure of the foot is small, the capsule 41 is stretched by the slide plate 6, the length is elongated and the thickness is reduced, and the adjacent light-shielding strip capsules 4 are The gap between them is increased, so that the shading rate of the hollow light-transmitting plate 3 is adaptively reduced in the first level. When the pressure of the foot increases to a certain level, the bag cover 41 and the end ball 42 are pulled at the same time, and the bag cover 41 not only reduces in thickness, but also shortens in length in the direction close to the fixed plate 5, and loses its light-shielding effect, thereby achieving a second level reduction in the shading rate of the hollow light-transmitting plate 3. Through the above-mentioned necessary adjustment process of the shading rate of the hollow light-transmitting plate 3, the camera 2 can realize fast and effective recognition of human faces.

[0052] The above is only a preferred specific implementation manner of the present invention; but the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A light-controllable face recognition access control device, comprising a device body (1), a camera (2) being installed at the front end of the device body (1), Features: The upper end of the device body (1) is fixedly connected to a hollow light-transmitting plate (3), the interior of the hollow light-transmitting plate (3) is fixedly connected to a fixed plate (5), the rear side of the fixed plate (5) is provided with a slide plate (6) slidably connected to the interior of the hollow light-transmitting plate (3), a plurality of evenly distributed light-shielding strip capsules (4) are fixedly connected between the front end of the slide plate (6) and the inner wall of the hollow light-transmitting plate (3), the light-shielding strip capsules (4) penetrate the fixed plate (5) and are slidably connected to the interior thereof, the rear end of the slide plate (6) is connected to the hollow light-transmitting plate ( 3) are fixedly connected to the inner wall of the hollow light-transmitting plate (3), the rear end of the slide plate (6) is also fixedly connected to a pull rope (7), the front end of the device body (1) is provided with a pressure plate (10) and a pair of limit frames (11), the limit frames (11) are fixedly connected to the device body (1), the pressure plate (10) is slidably connected between the pair of limit frames (11), and the pull rope (7) movably passes through the hollow light-transmitting plate (3) and the device body (1) and is fixedly connected to the upper end of the pressure plate (10); The light-shielding strip capsule (4) comprises a capsule sleeve (41), one end of which is fixedly connected to an end ball (42), the other end of which is fixedly connected to a ball shell (45), a mesh tube (46) being fixedly connected between the ball shell (45) and the slide plate (6), the ball shell (45) being located between the fixed plate (5) and the slide plate (6), the capsule sleeve (41) being movably penetrated through the interior of the fixed plate (5), a thin hard rod (43) being provided on the inner side of the capsule sleeve (41), one end of which is away from the fixed plate (5) being fixedly connected to the inner wall of the hollow light-transmitting plate (3), the end ball (42) being slidably connected to the outer end of the thin hard rod (43), a magnetic sheet (301) being fixedly connected to the inner wall of the hollow light-transmitting plate (3) away from the compression spring (8), and the end ball (42) being made of ferromagnetic material.

2. A light-controllable face recognition access control device according to claim 1, Features: A flexible sleeve (44) is fixedly connected between the spherical shell (45) and the fixed plate (5); the capsule sleeve (41) is located inside the flexible sleeve (44); and the spherical shell (45) is provided with a main air hole and a secondary air hole which are located inside the capsule sleeve (41) and the mesh tube (46) respectively.

3. The light-controllable face recognition access control device according to claim 1, Features: The bag sleeve (41) is made of elastic material, and when the compression spring (8) is in an initial state, the bag sleeve (41) is in an expanded state.

4. The light-controllable face recognition access control device according to claim 1, Features: A circular hole (302) is provided at the rear end of the hollow light-transmitting plate (3), and the pull rope (7) is slidably connected to the inner side of the circular hole (302).

5. The light-controllable face recognition access control device according to claim 1, Features: The outer end of the thin hard rod (43) is fixedly connected to a protrusion (47), and the protrusion (47) is located between the end ball (42) and the fixed plate (5).

6. The light-controllable face recognition access control device according to claim 4, Features: A rope tube (9) is fixedly connected between the rear end of the hollow light-transmitting plate (3) and the rear end of the device body (1); the circular hole (302) is located inside the tube mouth of the rope tube (9); and the pull rope (7) is slidably connected to the inside of the rope tube (9).

7. The light-controllable face recognition access control device according to claim 1, Features: When the compression spring (8) is in the initial state, the pull rope (7) is in a normally straightened state, and the height of the pressure plate (10) is at a maximum value.

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