Access control device based on face recognition

Abstract

The access control device comprises an access control device body, the top of the front side of the access control device body is sequentially provided with a display screen and a camera from top to bottom, the bottom of the access control device body is magnetically clamped with a concentric-square-shaped seat, the top of the concentric-square-shaped seat is movably contacted with a transparent cover, and the bottom of the transparent cover is open. And the access control device body is positioned in the transparent cover. By arranging a series of structures, the access control device body can be safely surrounded, blocked and protected when the access control device is not used, the risk that the access control device body is damaged when the access control device is not used is reduced, the safety when the access control device is not used is improved, and the transparent cover can be automatically controlled to be opened to remove shielding when a person approaches to use and can be automatically controlled to be reset downwards after the person leaves; and when the transparent cover is opened for use, the outer side of the transparent cover, the front side of the camera and the front side of the display screen are integrally and automatically cleaned and dedusted, the phenomenon that display and recognition are affected by dust coverage is avoided, and the use effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of access control equipment, in particular to an access control device based on face recognition. Background Art

[0002] Access control refers to the prohibition authority of a door, which is a precaution against the door. The door here, in a broad sense, includes various passages that can be passed, including doors for people to pass, doors for vehicles to pass, etc. Therefore, access control includes vehicle access control. In parking lot management applications, vehicle access control is an important means of vehicle management. At present, the access control device based on face recognition is equipped with a display screen and a camera on the front side, which are used for display and face recognition respectively. The installation of the access control device is fixed by bolts, and the installation, disassembly and maintenance work require the operation of multiple bolts, which is troublesome.

[0003] In this regard, after searching, publication number CN211015690U discloses a door access control device based on face recognition, including a device shell, the bottom of the device shell is fixedly connected to a bottom plate, the bottom of the bottom plate is provided with a mounting seat, the bottom of the mounting seat is fixedly connected to a fixing box, both sides of the top of the mounting seat are provided with grooves, both sides of the bottom of the bottom of the bottom plate are fixedly connected to plug boards, the bottom of the plug board extends to the inner cavity of the groove, the front surface of the device shell is fixedly connected with a display screen, a camera and a button from top to bottom in sequence, and both sides of the device shell are fixedly connected with indicator lights; by arranging the device shell, the bottom plate, the mounting seat, the fixing box, the groove, the plug board, the limit shell, the moving shell, the first spring, the pressure plate, the connecting rod, the pressure block, the card block, the push plate, the plug rod, the slot, the limit rod and the second spring, the door access control device can be conveniently installed and disassembled, and the problem that the existing door access control device based on face recognition is inconvenient to maintain is solved. The door access control device based on face recognition has the advantages of easy maintenance and is worthy of promotion.

[0004] The above technology discloses an access control device based on face recognition, which is convenient for disassembly and assembly of the access control device, but has the following shortcomings when used: 1. When not in use, the access control device is directly exposed to the outside, and the risk of damage by accidental contact is high, and the safety when not in use is not ideal; 2. Dust accumulates on the display screen and camera as it is used, and the dust cannot be automatically cleaned and removed during use, and there is a phenomenon that the display and recognition are affected by dust coverage; in view of this, we propose an access control device based on face recognition. Utility Model Content

[0005] The purpose of the utility model is to provide an access control device based on face recognition to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an access control device based on face recognition, comprising an access control device body, a display screen and a camera are arranged on the front top of the access control device body from top to bottom, a magnetic card at the bottom of the access control device body is equipped with a round seat, the top of the round seat is movably in contact with a transparent cover with an opening at the bottom, and the access control device body is located in the transparent cover;

[0007] The top of the round-shaped seat is fixedly connected to two symmetrically arranged box-shaped support rods, and a rectangular sliding sleeve is provided on the sliding sleeve of the box-shaped support rod. The adjacent sides of the two rectangular sliding sleeves are respectively fixedly connected to the bottoms of both sides of the transparent cover, and the same threaded lifting assembly is rotatably connected on the top inner walls of the two box-shaped support rods. The bottom of the threaded lifting assembly extends into the round-shaped seat, and a driving motor with an output shaft fixedly connected to the threaded lifting assembly is fixedly installed on the bottom inner wall of the round-shaped seat. The threaded lifting assembly is fixedly connected to the inner walls of the two rectangular sliding sleeves, and a PLC controller is fixedly installed on the bottom inner wall of the round-shaped seat. A human infrared sensor is fixedly connected to the front side of the round-shaped seat, and the human infrared sensor and the driving motor are both electrically connected to the PLC controller. The transparent cover is used to safely shield the main body of the access control device, and the human infrared sensor is used to sense the approach or departure of a person and transmit the start and reset signals to the PLC controller respectively. The PLC controller receives the corresponding signals and controls the forward start and reverse start of the driving motor respectively. The threaded lifting assembly is used to drive the two rectangular sliding sleeves to move up and down when the driving motor is started, and the two rectangular sliding sleeves drive the transparent cover to open upward or close downward;

[0008] The top ends of the two box-shaped support rods are fixedly connected with an external wiping and cleaning component that is in active contact with the outer side of the transparent cover. The external wiping and cleaning component is used to automatically wipe and clean the outer side of the transparent cover when it moves up and down to remove dust;

[0009] An inner wiping and cleaning component matched with the display screen and the camera is fixedly connected between the inner walls on both sides of the transparent cover. The inner wiping and cleaning component is used for automatically wiping and cleaning the display screen and the front side of the camera to remove dust when the transparent cover moves up and down.

[0010] Preferably, the threaded lifting assembly includes two screw rods, which are rotatably mounted on the top inner walls of the corresponding box-shaped support rods. Nuts are provided on the threaded sleeves of the screw rods. The sides of the two nuts are respectively fixedly connected to the inner walls of the sides of the two rectangular sliding sleeves. The bottom ends of the two screw rods extend into the circular seat and are fixedly connected to synchronous wheels. The two synchronous wheels are transmission-connected with the same synchronous belt, and the bottom of the synchronous wheel on the left is fixedly connected to the top of the output shaft of the driving motor.

[0011] Preferably, the external wiping cleaning assembly comprises a reciprocating rod fixedly connected to the top ends of two box-shaped support rods, a reciprocating wiping cotton is bonded and fixed inside the reciprocating rod, and the inner side of the reciprocating wiping cotton is in active contact with the outer top of the transparent cover.

[0012] Preferably, the internal wiping cleaning assembly includes a lifting rod fixedly connected between the inner walls on both sides of the transparent cover, and a first wiping cotton is bonded and fixed to the rear side of the lifting rod. The first wiping cotton is located below the camera, and the rear side of the first wiping cotton is vertically flush with the front side of the camera and the display screen.

[0013] Preferably, an embedding groove is provided on the left side of the top of the circular seat, and a light touch limit switch is fixedly connected in the embedding groove and on the left side of the bottom of the circular rod, and the rectangular sliding sleeve on the left side is arranged between the two light touch limit switches.

[0014] Preferably, a battery is fixedly mounted on the inner wall of the bottom of the circular seat, and the drive motor and the PLC controller are electrically connected to the battery.

[0015] Preferably, the bottom of the access control device body is rectangular and fixedly connected with four iron blocks, the top of the circular seat is rectangular and has four slots, magnets are bonded and fixed on the bottom inner walls of the slots, and the iron blocks are movably mounted in the corresponding slots and adsorbed to the tops of the magnets.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. This access control device based on face recognition can safely surround and protect the main body of the access control device when not in use through the cooperation of the transparent cover and the circular seat, so that it is not exposed to the outside, reducing the risk of damage when not in use and improving safety when not in use;

[0018] 2. This access control device based on face recognition can automatically sense whether a person is approaching through the cooperation of a transparent cover, a light-touch limit switch, a human infrared sensor, a PLC controller, a drive motor, a rectangular sliding sleeve, a box-shaped support rod and a threaded lifting component. It can automatically control the transparent cover to open and remove the shielding when a person approaches, and can automatically control the transparent cover to reset downward to perform shielding work after the person leaves. It has a high degree of automation and is convenient for people to use;

[0019] 3. This access control device based on face recognition, through the cooperation of the transparent cover, the external cleaning component and the internal cleaning component, can automatically clean and remove dust from the outside of the transparent cover, the front side of the camera and the front side of the display screen when the transparent cover is opened for use, thereby avoiding the phenomenon that the display and recognition are affected by dust coverage and improving the use effect.

[0020] The utility model is provided with a series of structures, which is convenient for safely surrounding and protecting the main body of the access control device when not in use, reducing the risk of damage to the main body when not in use, improving the safety when not in use, and is convenient for automatically controlling the transparent cover to open and release the shielding when a person approaches to use it, and automatically controlling it to return to its original position after the person leaves. In addition, when the transparent cover is opened for use, the outside of the transparent cover, the front side of the camera and the front side of the display screen are automatically cleaned and dusted, so as to avoid the phenomenon that the display and recognition are affected by dust covering, thereby improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of a door access control device based on face recognition proposed by the utility model;

[0022] Figure 2 This is a schematic cross-sectional view of a door access control device based on face recognition proposed by the utility model;

[0023] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure of part A in the figure.

[0024] In the figure: 1. Access control device body; 101. Iron card block; 102. Magnet; 2. Reciprocating seat; 3. Transparent cover; 4. Box-shaped support rod; 5. Reciprocating rod; 6. Reciprocating wiping cotton; 7. Screw; 8. Nut; 9. Rectangular sliding sleeve; 10. Synchronous wheel; 11. Synchronous belt; 12. Driving motor; 13. PLC controller; 14. Lifting rod; 15. First wiping cotton; 16. Touch limit switch; 17. Human infrared sensor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figures 1 to 3As shown, a face recognition-based access control device proposed in this embodiment includes an access control device body 1, a display screen and a camera are sequentially arranged on the front top of the access control device body 1 from top to bottom, and a round-shaped seat 2 is magnetically mounted on the bottom of the access control device body 1, wherein the bottom of the access control device body 1 is rectangular and fixedly connected with four iron card blocks 101, the top of the round-shaped seat 2 is rectangular and has four card slots, and magnets 102 are bonded and fixed on the bottom inner walls of the card slots, and the iron card blocks 101 are movably mounted in the corresponding card slots and adsorbed with the tops of the magnets 102, and the arranged magnets 102, the card slots and the iron card blocks 101 cooperate to achieve the effect of convenient magnetic card mounting and positioning of the access control device body 1, and the top of the round-shaped seat 2 is movably in contact with a transparent cover 3 with an opening at the bottom, and the access control device body 1 is located in the transparent cover 3;

[0027] The top of the round-shaped seat 2 is fixedly connected to two symmetrically arranged box-shaped support rods 4, and a rectangular sliding sleeve 9 is provided on the box-shaped support rod 4 for sliding. The adjacent sides of the two rectangular sliding sleeves 9 are respectively fixedly connected to the bottoms of the two sides of the transparent cover 3. The top inner walls of the two box-shaped support rods 4 are rotatably connected with the same threaded lifting assembly, and the bottom of the threaded lifting assembly extends into the round-shaped seat 2. A driving motor 12 whose output shaft is fixedly installed on the bottom inner wall of the round-shaped seat 2 is fixedly connected, and the threaded lifting assembly is fixedly connected to the inner walls of the two rectangular sliding sleeves 9. A PLC controller 13 is fixedly installed on the bottom inner wall of the round-shaped seat 2. A human infrared sensor 17 is fixedly connected to the front side of the round-shaped seat 2, and the human infrared sensor 17 and the driving motor 12 are both electrically connected to the PLC controller 13. An embedding groove is provided on the left side of the top of the round-shaped seat 2, and a light-touch limit switch 16 is fixedly connected in the embedding groove and on the left side of the bottom of the round-shaped rod 5. The rectangular sliding sleeve on the left 9 is arranged between two light touch limit switches 16. The light touch limit switch 16 is used to transmit a stop motion signal to the PLC controller 13 when it is squeezed and touched by the rectangular sliding sleeve 9 on the left, so as to facilitate its timely automatic control of the drive motor 12 to shut down. A battery is fixedly installed on the bottom inner wall of the round seat 2. The drive motor 12 and the PLC controller 13 are electrically connected to the battery, which plays the effect of powering the drive motor 12 and the PLC controller 13. The transparent cover 3 is used to safely protect the access control device body 1. The human infrared sensor 17 is used to sense the approach or departure of the person and transmit the start and reset signals to the PLC controller 13 respectively. The PLC controller 13 receives the corresponding signals and controls the forward start and reverse start of the drive motor 12 respectively. The threaded lifting component is used to drive the two rectangular sliding sleeves 9 to move up and down when the drive motor 12 starts, and the two rectangular sliding sleeves 9 drive the transparent cover 3 to open upward or close downward;

[0028] The top ends of the two box-shaped support rods 4 are fixedly connected with an outer wiping and cleaning component that is in active contact with the outer side of the transparent cover 3. The outer wiping and cleaning component is used to automatically wipe and clean the outer side of the transparent cover 3 and remove dust when the transparent cover 3 moves up and down; the inner wiping and cleaning component that cooperates with the display screen and the camera is fixedly connected between the inner walls on both sides of the transparent cover 3. The inner wiping and cleaning component is used to automatically wipe and clean the display screen and the front side of the camera and remove dust when the transparent cover 3 moves up and down.

[0029] Specifically, the threaded lifting assembly includes two screw rods 7, which are rotatably mounted on the top inner walls of the corresponding box-shaped support rods 4, and a nut 8 is threadedly sleeved on the screw rods 7. The adjacent sides of the two nuts 8 are respectively fixedly connected to the adjacent inner walls of the two rectangular sleeves 9. The bottom ends of the two screw rods 7 extend into the round-shaped seat 2 and are fixedly connected with a synchronous wheel 10, wherein the bottom inner wall of the box-shaped support rod 4 is provided with a movable through hole for the corresponding screw rod 7 to movably pass through, and the top inner wall of the round-shaped seat 2 is provided with two circular holes, and bearings are fixedly connected in the circular holes and on the top inner wall of the box-shaped support rod 4, and the inner side of the inner ring of the bearing is connected to the corresponding screw rod 7. The outer side of the screw rod 7 is fixedly connected, which has the effect of rotating and installing the screw rod 7. The two synchronous wheels 10 are transmission-connected with the same synchronous belt 11. The bottom of the synchronous wheel 10 on the left is fixedly connected to the top of the output shaft of the drive motor 12; the screw rod 7, nut 8, synchronous wheel 10 and synchronous belt 11 are arranged to cooperate, and the drive motor 12 is used to drive the synchronous wheel 10 on the left to rotate. The synchronous wheel 10 on the left drives the synchronous wheel 10 on the right to rotate through the synchronous belt 11. The two synchronous wheels 10 drive the two screw rods 7 to rotate synchronously. The rotation of the two screw rods 7 drives the two nuts 8 to move up and down, and the two nuts 8 are used to drive the two rectangular sleeves 9 to move up and down.

[0030] Furthermore, the external wiping and cleaning component includes a circular rod 5 fixedly connected to the top ends of two box-shaped support rods 4, and a circular wiping cotton 6 is bonded and fixed inside the circular rod 5, and the inner side of the circular wiping cotton 6 is in movable contact with the outer top of the transparent cover 3; the circular rod 5 and the circular wiping cotton 6 are arranged to cooperate, and the transparent cover 3 will rub against the inner side of the circular wiping cotton 6 when it moves up and down, thereby achieving the effect of automatically wiping and cleaning the outer side of the transparent cover 3 when it is opened during use.

[0031] Furthermore, the internal wiping and cleaning component includes a lifting rod 14 fixedly connected between the inner walls on both sides of the transparent cover 3, and a first wiping cotton 15 is bonded and fixed to the rear side of the lifting rod 14. The first wiping cotton 15 is located below the camera, and the rear side of the first wiping cotton 15 is vertically flush with the front side of the camera and the display screen; the lifting rod 14 and the first wiping cotton 15 are arranged to cooperate with each other, and when the transparent cover 3 moves up and down, the lifting rod 14 will drive the first wiping cotton 15 to move up and down, and the first wiping cotton 15 that moves up and down can be used to automatically wipe and clean the front side of the camera and the display screen to remove dust.

[0032] The method of using this embodiment is as follows: when not in use, the transparent cover 3 is used to safely surround and protect the main body 1 of the access control device so that it is not exposed to the outside, thereby reducing the risk of damage when not in use and improving safety when not in use. When a person approaches to use it, the human infrared sensor 17 senses the person approaching and transmits a start signal to the PLC controller 13. At this time, the PLC controller 13 controls the drive motor 12 to start forward, and the drive motor 12 drives the left synchronous wheel 10 to rotate. The left synchronous wheel 10 drives the right synchronous wheel 10 to rotate through the synchronous belt 11. The two synchronous wheels 10 are driven by the synchronous belt 11. The two screw rods 7 rotate synchronously, and the rotation of the two screw rods 7 drives the two nuts 8 to move upward, and the two nuts 8 drive the two rectangular sliding sleeves 9 to slide upward on the corresponding box-shaped support rods 4 respectively, and the two rectangular sliding sleeves 9 drive the transparent cover 3 to automatically open upward to release the shielding. When the rectangular sliding sleeve 9 on the left moves up to squeeze and touch the upper light touch limit switch 16, the upper light touch limit switch 16 transmits a stop motion signal to the PLC controller 13, and the PLC controller 13 controls the drive motor 12 to automatically turn off, so as to achieve the effect of automatically controlling the transparent cover 3 to open and release the shielding when a person approaches to use it;

[0033] When the transparent cover 3 moves upward, it will rub against the inner side of the circular wiping cotton 6, so that the transparent cover 3 can be automatically wiped and dusted when it is opened during use. When the transparent cover 3 moves upward, the first wiping cotton 15 is also driven by the lifting rod 14 to wipe the front side of the camera and the display screen upward to remove dust. Under the combination of the two, the effect of automatically cleaning and dusting the outer side of the transparent cover 3, the front side of the camera and the front side of the display screen when it is opened for use can be achieved; after the person uses the access control device body 1 and leaves, the human infrared sensor 17 senses that there is no one and transmits a reset signal to the PLC controller 13. At this time, the PLC controller 13 controls the drive motor 12 to start in the reverse direction. Similarly, the movement direction is completely opposite to that of the forward start. At this time, the transparent cover 3 changes to move back downward to reset and safely protect the access control device body 1 again, so as to automatically protect the access control device body 1 after use.

[0034] When it is necessary to disassemble and assemble the access control device body 1 for maintenance, the maintenance personnel approach and open the transparent cover 3 upward again to remove the obstruction. At this time, the access control device body 1 can be directly pulled upward to drive the iron card block 101 to separate from the corresponding card slot and magnet 102, and then it can be moved out. When installing after maintenance, move the access control device body 1 downward to drive the iron card block 101 to be stuck in the corresponding card slot and fixed with the magnet 102. The installation is completed, and the access control device body 1 can be easily disassembled and assembled by simple plugging and unplugging, which is convenient for subsequent maintenance work.

[0035] Finally, it should be noted that the above are only preferred embodiments of the utility model and are not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A door access control device based on face recognition, comprising a door access control device body (1), wherein a display screen and a camera are sequentially arranged on the front top of the door access control device body (1) from top to bottom, and characterized in that: The magnetic card at the bottom of the access control device body (1) is equipped with a round-shaped seat (2), the top of the round-shaped seat (2) is movably in contact with a transparent cover (3) with an opening at the bottom, and the access control device body (1) is located in the transparent cover (3); The top of the reciprocating seat (2) is fixedly connected to two symmetrically arranged box-shaped support rods (4), a rectangular sliding sleeve (9) is slidably sleeved on the box-shaped support rod (4), and the adjacent sides of the two rectangular sliding sleeves (9) are respectively fixedly connected to the bottoms of the two sides of the transparent cover (3), and the top inner walls of the two box-shaped support rods (4) are rotatably connected to the same threaded lifting assembly, and the bottom of the threaded lifting assembly extends into the reciprocating seat (2), and a driving motor (12) whose output shaft is fixedly connected to the threaded lifting assembly is fixedly installed on the bottom inner wall of the reciprocating seat (2), and the threaded lifting assembly is fixedly connected to the inner walls of the two rectangular sliding sleeves (9), and a PLC controller (13) is fixedly installed on the bottom inner wall of the reciprocating seat (2), and a human infrared sensor (17) is fixedly connected to the front side of the reciprocating seat (2), and the human infrared sensor (17) and the driving motor (12) are both electrically connected to the PLC controller (13); The top ends of the two box-shaped support rods (4) are fixedly connected to a same external wiping and cleaning component that is in active contact with the outer side of the transparent cover (3); An inner cleaning component that cooperates with the display screen and the camera is fixedly connected between the inner walls on both sides of the transparent cover (3).

2. The access control device based on face recognition according to claim 1, characterized in that: The threaded lifting assembly comprises two screw rods (7), the two screw rods (7) are rotatably mounted on the top inner wall of the corresponding box-shaped support rod (4), a nut (8) is threadedly sleeved on the screw rod (7), the adjacent sides of the two nuts (8) are respectively fixedly connected to the adjacent inner walls of the two rectangular sliding sleeves (9), the bottom ends of the two screw rods (7) extend into the round seat (2) and are fixedly connected to a synchronous wheel (10), the two synchronous wheels (10) are transmission-connected to the same synchronous belt (11), and the bottom of the synchronous wheel (10) on the left is fixedly connected to the top of the output shaft of the driving motor (12).

3. The access control device based on face recognition according to claim 2, characterized in that: The external wiping cleaning assembly comprises a reciprocating rod (5) fixedly connected to the top ends of two box-shaped supporting rods (4), a reciprocating wiping cotton (6) is bonded and fixed inside the reciprocating rod (5), and the inner side of the reciprocating wiping cotton (6) is in active contact with the outer top of the transparent cover (3).

4. The access control device based on face recognition according to claim 3, characterized in that: The internal wiping cleaning assembly comprises a lifting rod (14) fixedly connected between the inner walls on both sides of the transparent cover (3); a first wiping cotton (15) is bonded and fixed to the rear side of the lifting rod (14); the first wiping cotton (15) is located below the camera; the rear side of the first wiping cotton (15) is vertically flush with the front side of the camera and the display screen.

5. The access control device based on face recognition according to claim 3, characterized in that: The left side of the top of the circular seat (2) is provided with an embedding groove, and a light touch limit switch (16) is fixedly connected in the embedding groove and on the left side of the bottom of the circular rod (5), and the rectangular sliding sleeve (9) on the left side is arranged between the two light touch limit switches (16).

6. The access control device based on face recognition according to claim 1, characterized in that: A storage battery is fixedly mounted on the inner wall of the bottom of the circular seat (2), and the drive motor (12) and the PLC controller (13) are both electrically connected to the storage battery.

7. The access control device based on face recognition according to claim 1, characterized in that: The bottom of the access control device body (1) is rectangular and fixedly connected with four iron blocks (101); the top of the circular seat (2) is rectangular and has four slots; magnets (102) are bonded and fixed to the inner walls of the bottoms of the slots; the iron blocks (101) are movably mounted in the corresponding slots and adsorbed to the tops of the magnets (102).

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