Face recognition device based on internet of things

Abstract

The application discloses a face recognition device based on Internet of Things, and belongs to the field of face recognition of Internet of Things, which comprises a face recognition panel, and further comprises: a mounting seat fixed to the back of the face recognition panel, and a protective cover sleeved on the periphery of the face recognition panel; through the arrangement of the driving motor, the clamping frame, the cleaning cotton and the sliding block and other structures, the function of the cleaning cotton to clean the dust and stains on the surface of the face recognition panel is realized, and through the arrangement of the disinfecting spraying mechanism, when the cleaning cotton is moving, the nozzle sprays liquid on the surface of the face recognition panel, so that the cleaning cotton can better clean the surface, the cleaning effect is improved, the staff is prevented from being infected by bacteria and viruses when operating the face recognition panel, the recognition efficiency of the face recognition panel is improved, and through the cooperation of the rotating adjusting assembly, the nozzle rotates when spraying, so that the spraying range of the nozzle is increased, and the disinfection range is further increased.

Description

Technical Field

[0001] This invention belongs to the field of Internet of Things (IoT) facial recognition technology, specifically relating to an IoT-based facial recognition device. Background Technology

[0002] The Internet of Things (IoT) refers to the use of various information sensors, radio frequency identification (RFID) technology, global positioning systems (GPS), infrared sensors, laser scanners, and other devices and technologies to collect real-time information on any object or process that needs to be monitored, connected, or interacted with. This information includes sound, light, heat, electricity, mechanics, chemistry, biology, location, and other necessary data. Through various possible network access methods, ubiquitous connections between things and between things and people are achieved, enabling intelligent perception, identification, and management of objects and processes. Facial recognition, on the other hand, is a biometric technology that identifies individuals based on their facial features. It involves using cameras or webcams to capture images or video streams containing faces, automatically detecting and tracking faces in the images, and then performing facial recognition on the detected faces. This technology is also commonly known as image recognition or facial identification.

[0003] In existing technologies, the use of facial recognition devices has greatly increased the practicality of the Internet of Things (IoT). Facial recognition devices are typically installed at entrances to office buildings or shopping malls. These devices scan individuals entering the premises to collect their information and control access. However, facial recognition panels are exposed to the environment for extended periods, causing dust and dirt to accumulate on their surfaces, which can affect the accuracy of facial recognition. In addition, crowded environments often contain bacteria and viruses, especially during flu season. These bacteria and viruses can adhere to the surface of the facial recognition device panels, and staff can easily come into direct contact with them when adjusting or wiping the devices, making them susceptible to infection and affecting their subsequent work.

[0004] Therefore, there is a need for an IoT-based facial recognition device to address the issues of dust and dirt affecting the accuracy of facial recognition in existing technologies, as well as the risk of bacterial and viral infections when staff adjust and wipe the device. Summary of the Invention

[0005] The purpose of this invention is to provide a face recognition device based on the Internet of Things to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a face recognition device based on the Internet of Things, comprising a face recognition panel, and further comprising:

[0007] Mounting base, the mounting base is fixed to the back of the face recognition panel, the face recognition panel is covered with a protective cover, and four L-shaped fixing rods are fixed on the back of the face recognition panel in a rectangular distribution. A limit rod is fixed between two of the fixing rods on one side, and a reciprocating screw is rotatably connected between two of the fixing rods on the other side. A drive motor coaxially connected to the reciprocating screw is fixedly installed on one side of one of the fixing rods.

[0008] A card frame is slidably disposed around the periphery of the face recognition panel. Two symmetrically distributed sliders are fixed on the side of the card frame closest to the face recognition panel. One slider is slidably sleeved on the outer surface of a limiting rod, and the other slider is threadedly sleeved on the outer surface of a reciprocating lead screw. A rectangular through hole is provided on the surface of the protective cover for the two sliders to slide. A cleaning cotton is provided inside the card frame to cooperate with the front of the face recognition panel, and a spraying disinfection mechanism is provided on the surface of the card frame to cooperate with the cleaning cotton.

[0009] It is worth noting that

[0010] It should be noted in the plan that the spraying disinfection mechanism includes:

[0011] A fixed base is fixed to the outer surface of the frame. A conduit is rotatably installed on the inner side of the fixed base. Multiple nozzles are fixedly installed on the outer surface of the conduit. A hose is fixed on the outer surface of the conduit. A liquid storage tank is fixed to one end of the frame. A water pump that cooperates with the hose is fixedly installed on the top surface of the liquid storage tank.

[0012] A collar is fixedly sleeved on the outer surface of the conduit. A guide rod is fixed on the outer surface of the collar. A rotation adjustment component that cooperates with the guide rod is provided on one side of the frame.

[0013] It is further worth noting that the rotation adjustment assembly includes:

[0014] A corrugated guide plate is fixed to one side of the protective cover. A support rod is fixed to the side of the card frame away from the liquid storage tank. Rollers are rolled on the surface of the corrugated guide plate. An installation rod is rotatably connected to one side of the rollers. Two fixing blocks are fixed to one side of the installation rod. A positioning rod is fixed between the two fixing blocks. A first spring is sleeved on the outer surface of the positioning rod. The positioning rod moves through the support rod.

[0015] A rectangular frame is fixed to the top of the mounting rod. The rectangular frame has two arc-shaped plates inside. One arc-shaped plate is fixed to the inner bottom wall of the rectangular frame, and the other arc-shaped plate is slidably disposed inside the rectangular frame. A second spring is fixed to the surface of the other arc-shaped plate, and the end of the second spring is fixed to the inner side of the rectangular frame. The end of the guide rod is located between the two arc-shaped plates.

[0016] Furthermore, it should be noted that a placement box is fixed to the bottom of the protective cover, and the interior of the placement box is equipped with a dustproof component that works in conjunction with the face recognition panel.

[0017] In a preferred embodiment, the dustproof component includes:

[0018] A rotating shaft is rotatably mounted on the inner wall of the placement box. A dustproof cloth is fixedly wrapped around the outer surface of the rotating shaft. A cloth outlet hole that matches the dustproof cloth is opened on one side of the placement box.

[0019] A stop bar is fixed to the end face of the dustproof cloth. Two symmetrically distributed hanging blocks are fixed on one side of the stop bar. Two symmetrically distributed hanging holes are opened on the surface of the protective cover corresponding to the hanging blocks.

[0020] In a preferred embodiment, a mounting bracket is fixed to the bottom surface of the protective cover, and a guide roller is rotatably connected to the inner side of the mounting bracket.

[0021] In a preferred embodiment, an L-shaped bracket is rotatably mounted on the inner side of the mounting base, and a base is fixed to the bottom end of the L-shaped bracket. The surface of the base has four rectangularly distributed connection holes.

[0022] In a preferred embodiment, an electric telescopic rod is rotatably mounted on one side of the L-shaped bracket, and the telescopic end of the electric telescopic rod is rotatably connected to the inner side of the mounting base.

[0023] In a preferred embodiment, a rotating block is fixed to one end of the rotating shaft, a limiting bolt is connected to the outer surface of the card frame corresponding to the cleaning cotton thread, a limiting block is fixed to the outer surface of the card frame, and the hose moves through the limiting block.

[0024] Compared with existing technologies, the IoT-based facial recognition device provided by this invention has at least the following beneficial effects:

[0025] (1) By setting up a structure such as a drive motor, a frame, a cleaning cotton and a slider, the cleaning cotton is used to clean the dust and dirt on the surface of the face recognition panel. By setting up a spray disinfection mechanism, the nozzle sprays liquid onto the surface of the face recognition panel when the cleaning cotton moves to clean, so that the cleaning cotton can better clean the surface, improve the cleaning effect, reduce the infection of bacteria and viruses on the face recognition panel by the staff when operating the face recognition panel, and improve the recognition efficiency of the face recognition panel. By cooperating with the rotation adjustment component, the nozzle rotates when spraying, thereby increasing the spraying range of the nozzle and thus increasing the disinfection range.

[0026] (2) When the face recognition panel is not in use, the staff can pull out the dust cloth from the box and put the hanging block on the rod into the hanging hole to limit the dust cloth, thereby preventing the face recognition panel from being dusted and dirty when idle. The angle of the face recognition panel can be adjusted by the electric telescopic rod, which makes it easier for tall or short people to use.

[0027] (3) The rotating block facilitates the rotation of the shaft, which makes it easier to roll up the dustproof cloth. When the dustproof cloth is pulled, it slides on the guide roller, thereby reducing the friction between the dustproof cloth and the edge of the protective cover. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a partial structural diagram of the present invention;

[0030] Figure 3 For the present invention Figure 2 Enlarged structural diagram of region A in the middle;

[0031] Figure 4 This is a partial structural diagram of the spraying disinfection mechanism of the present invention;

[0032] Figure 5 For the present invention Figure 4 Enlarged structural diagram of region B in the middle;

[0033] Figure 6 Another structural schematic diagram of the present invention;

[0034] Figure 7 This is a schematic diagram of the dustproof component structure of the present invention;

[0035] Figure 8 This is a rear view of the overall structure of the present invention.

[0036] In the diagram: 1. Face recognition panel; 2. Mounting base; 3. Protective cover; 4. L-shaped fixing rod; 5. Limiting rod; 6. Reciprocating screw; 7. Drive motor; 8. Frame; 9. Cleaning cotton; 10. Spraying disinfection mechanism; 101. Fixing base; 102. Conduit; 103. Spray head; 104. Hose; 105. Liquid storage tank; 106. Water pump; 107. Collar; 108. Guide rod; 109. Rotation adjustment assembly; 1091. Corrugated guide plate; 1092. Support rod; 1093. Roller; 1094. Mounting rod; 1095. Fixing block; 1096. Positioning rod; 1097. First spring; 1098. Rectangular frame; 1099. Arc plate; 1100. Second spring; 11. Placement box; 12. Dustproof assembly; 121. Rotating shaft; 122. Dustproof cloth; 123. Cloth outlet hole; 124. Support rod; 125. Hanging block; 126. Hanging hole; 13. Mounting frame; 14. Guide roller; 15. L-shaped bracket; 16. Base; 17. Electric telescopic rod; 18. Rotating block; 19. Limiting bolt; 20. Limiting block; 21. Sliding block. Detailed Implementation

[0037] The present invention will be further described below with reference to embodiments.

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0039] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by a person skilled in the art to which this disclosure pertains. The words “comprising” or “including” and similar terms used in this disclosure mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. “Up,” “down,” “left,” “right,” etc., are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] Example 1:

[0041] Please see Figure 1-7 The present invention provides an Internet of Things-based face recognition device, including a face recognition panel 1, and further comprising:

[0042] Mounting base 2 is fixed to the back of face recognition panel 1. A protective cover 3 is fitted around the face recognition panel 1. Four L-shaped fixing rods 4 are fixed on the back of face recognition panel 1 in a rectangular arrangement. A limit rod 5 is fixed between two fixing rods on one side. A reciprocating screw 6 is rotatably connected between two fixing rods on the other side. A drive motor 7 coaxially connected to the reciprocating screw 6 is fixedly installed on one side of one of the fixing rods.

[0043] Card frame 8 is slidably disposed on the periphery of face recognition panel 1. Two symmetrically distributed sliders 21 are fixed on the side of card frame 8 near face recognition panel 1. One slider 21 is slidably sleeved on the outer surface of limiting rod 5, and the other slider 21 is threadedly sleeved on the outer surface of reciprocating screw 6. The surface of protective cover 3 is provided with rectangular through holes for the two sliders 21 to slide. The inside of card frame 8 is provided with cleaning cotton 9 that cooperates with the front of face recognition panel 1. The surface of card frame 8 is provided with spray disinfection mechanism 10 that cooperates with cleaning cotton 9.

[0044] It is worth noting that the protective cover 3 is inserted from the bottom of the face recognition panel 1 during installation, thereby covering the outer perimeter of the face recognition panel 1 and protecting the frame and back of the face recognition panel 1. The protective cover 3 is connected and fixed to the surface of the mounting base 2 by bolts.

[0045] Further as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it is worth noting that the spraying disinfection mechanism 10 includes:

[0046] A fixed base 101 is fixed to the outer surface of the frame 8. A conduit 102 is rotatably installed on the inner side of the fixed base 101. Multiple nozzles 103 are fixedly installed on the outer surface of the conduit 102. A hose 104 is fixed on the outer surface of the conduit 102. A liquid storage tank 105 is fixed at one end of the frame 8. A water pump 106 that cooperates with the hose 104 is fixedly installed on the top surface of the liquid storage tank 105.

[0047] A collar 107 is fixedly sleeved on the outer surface of the conduit 102. A guide rod 108 is fixed on the outer surface of the collar 107. A rotation adjustment component 109 that cooperates with the guide rod 108 is provided on one side of the frame 8.

[0048] It is worth noting that the outlet of the water pump 106 is connected to the hose 104, and the inlet of the water pump 106 is fixed with an inlet pipe that extends to the inner bottom wall of the storage tank 105. The top surface of the storage tank 105 is fixed with an inlet pipe for easy addition of liquid, which facilitates timely addition of cleaning and disinfecting solution to the storage tank 105. The inlet pipe is also equipped with a cap. Through the cooperation between the nozzle 103 and the rotating adjustment component 109, the nozzle 103 swings at a certain amplitude during spraying, increasing the spraying area and disinfecting the air in front of the face recognition panel 1.

[0049] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the rotation adjustment assembly 109 includes:

[0050] A corrugated guide plate 1091 is fixed to one side of the protective cover 3. A support rod 1092 is fixed to the side of the frame 8 away from the liquid storage tank 105. A roller 1093 is rolled on the surface of the corrugated guide plate 1091. An installation rod 1094 is rotatably connected to one side of the roller 1093. Two fixing blocks 1095 are fixed to one side of the installation rod 1094. A positioning rod 1096 is fixed between the two fixing blocks 1095. A first spring 1097 is sleeved on the outer surface of the positioning rod 1096. The positioning rod 1096 moves through the support rod 1092.

[0051] A rectangular frame 1098 is fixed to the top of the mounting rod 1094. Two arc-shaped plates 1099 are provided inside the rectangular frame 1098. One arc-shaped plate 1099 is fixed to the inner bottom wall of the rectangular frame 1098, and the other arc-shaped plate 1099 is slidably disposed inside the rectangular frame 1098. A second spring 1100 is fixed to the surface of the other arc-shaped plate 1099. The end of the second spring 1100 is fixed to the inner side of the rectangular frame 1098. The end of the guide rod 108 is located between the two arc-shaped plates 1099.

[0052] It is worth noting that the positioning rod 1096 moves through the support rod 1092, and the diameter of the hole on the support rod 1092 for the positioning rod 1096 to move is slightly larger than the diameter of the positioning rod 1096, thereby maintaining the smooth up-and-down movement of the positioning rod 1096; under the elastic force of the second spring 1100, the arc plate 1099 at the upper end is pushed down, so that the guide rod 108 is located between the two arc plates 1099, and the elastic force of the second spring 1100 provides the movement space for the guide rod 108.

[0053] This embodiment has the following working process: The drive motor 7 drives the reciprocating screw 6 to rotate, thereby driving one slider 21 to move on the reciprocating screw 6, while the other slider 21 slides on the limiting rod 5, causing the frame 8 to slide along the surface of the face recognition panel 1. This allows the cleaning cotton 9 to wipe the surface of the face recognition panel 1, facilitating the removal of dust and dirt. After cleaning, the cleaning cotton 9 returns to its original position, and then the water pump 106 guides the cleaning and disinfecting solution in the storage tank 105 into the hose 104, which is then sprayed out from the nozzle 103 through the conduit 102, thus disinfecting the surface of the face recognition panel 1 and facilitating the removal of stubborn stains. Then, the frame 8 drives the cleaning cotton 9 to move downwards, while the nozzle 103 sprays liquid, cleaning and disinfecting the face recognition panel 1 simultaneously, thus preventing bacterial and viral infection when staff touch the equipment. As the frame 8 moves... The support rod 1092 drives the mounting rod 1094 to move via the positioning rod 1096. The mounting rod 1094 then drives the roller 1093 to roll on the corrugated guide plate 1091. When the roller 1093 rolls to the convex surface of the corrugated guide plate 1091, it drives the mounting rod 1094 to move upwards, thereby causing the positioning rod 1096 to move upwards within the support rod 1092. Simultaneously, the arc-shaped plate 1099 at the lower end pushes the guide rod 108 upwards. The upper arc plate 1099 presses the guide rod 108 under the elastic force of the second spring 1100. When the lower arc plate 1099 presses the guide rod 108 upward, the guide rod 108 drives the guide tube 102 to rotate at a certain angle through the collar 107. When the roller 1093 rolls to the concave surface of the wave-shaped guide plate 1091, the guide rod 108 resets, thereby driving the nozzle 103 to rotate during spraying, increasing the spraying range and the disinfection range.

[0054] Example 2:

[0055] Based on Example 1, according to Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, it is worth noting that a placement box 11 is fixed to the bottom surface of the protective cover 3. Inside the placement box 11 is a dustproof component 12 that cooperates with the face recognition panel 1. The dustproof component 12 includes:

[0056] A rotating shaft 121 is rotatably mounted on the inner wall of the placement box 11. A dustproof cloth 122 is fixedly wrapped around the outer surface of the rotating shaft 121. A cloth outlet hole 123 that cooperates with the dustproof cloth 122 is opened on one side of the placement box 11.

[0057] A stop bar 124 is fixed to the end face of the dustproof cloth 122. Two symmetrically distributed hanging blocks 125 are fixed on one side of the stop bar 124. Two symmetrically distributed hanging holes 126 are opened on the surface of the protective cover 3 corresponding to the hanging blocks 125.

[0058] It is worth noting that when the face recognition panel 1 is not in use, the staff can pull out the dust cover 122 inside the box 11 and lock the hanging block 125 on the rod 124 into the hanging hole 126 to limit the dust cover 122, thereby preventing the face recognition panel 1 from being dusted or soiled when it is not in use.

[0059] Further as Figure 5 As shown, it is worth noting that the bottom surface of the protective cover 3 is fixed with a mounting bracket 13, the inner side of the mounting bracket 13 is rotatably connected with a guide roller 14, the inner side of the mounting base 2 is rotatably mounted with an L-shaped bracket 15, the bottom end of the L-shaped bracket 15 is fixed with a base 16, and the surface of the base 16 has four rectangularly distributed connection holes.

[0060] It is worth noting that by pulling the dustproof cloth 122, the dustproof cloth 122 slides on the guide roller 14, thereby reducing the friction between the dustproof cloth 122 and the edge of the protective cover 3; the face recognition panel 1 is fixed through the connecting hole on the base 16.

[0061] Further as Figure 7 As shown, it is worth noting that an electric telescopic rod 17 is rotatably mounted on one side of the L-shaped bracket 15. The telescopic end of the electric telescopic rod 17 is rotatably connected to the inner side of the mounting base 2. By setting the electric telescopic rod 17, the angle of the face recognition panel 1 can be adjusted, which makes it easier for taller or shorter people to use.

[0062] Further as Figure 4 , Figure 5 and Figure 6 As shown, it is worth noting that a rotating block 18 is fixed at one end of the rotating shaft 121. The rotating block 18 facilitates the rotation of the rotating shaft 121, thereby making it easier to roll up the dustproof cloth 122. The outer surface of the frame 8 is connected to the cleaning cotton 9 by a threaded connection of a limiting bolt 19. The cleaning cotton 9, which is fixed by the limiting bolt 19, facilitates the regular replacement by the staff. A limiting block 20 is fixed to the outer surface of the frame 8. The hose 104 moves through the limiting block 20, and the limiting block 20 limits the hose 104.

[0063] Based on Embodiment 1, this embodiment also includes the following working process: When the face recognition panel 1 is not in use, the staff can pull out the dustproof cloth 122 from the placement box 11 and lock the hanging block 125 on the abutment 124 into the hanging hole 126, thereby limiting the dustproof cloth 122 and preventing the face recognition panel 1 from being dusted and soiled when idle. The rotating block 18 facilitates the rotation of the rotating shaft 121, thereby facilitating the rolling up of the dustproof cloth 122. When the dustproof cloth 122 is pulled, it slides on the guide roller 14, thereby reducing the friction between the dustproof cloth 122 and the edge of the protective cover 3. The electric telescopic rod 17 can be used to adjust the angle of the face recognition panel 1, making it easier for taller or shorter people to use.

[0064] In summary, combining the two embodiments, it can be seen that: the drive motor 7 drives the reciprocating screw 6 to rotate, thereby driving one slider 21 to move on the reciprocating screw 6, while the other slider 21 slides on the limit rod 5, so that the frame 8 slides along the surface of the face recognition panel 1, thereby wiping the surface of the face recognition panel 1 with the cleaning cotton 9, which facilitates the cleaning of dust and dirt on its surface. After cleaning the dust and dirt, the cleaning cotton 9 returns to its original position, and then the water pump 106 guides the cleaning and disinfecting solution in the storage tank 105 into the hose 104, which is then sprayed out from the nozzle 103 through the conduit 102, thereby disinfecting the surface of the face recognition panel 1 and facilitating the removal of stubborn stains. Then, the frame 8 drives the cleaning cotton 9 to move down, while the nozzle 103 sprays liquid, cleaning and disinfecting the face recognition panel 1 at the same time, thereby preventing the staff from being infected by bacteria and viruses when they come into contact with the equipment.

[0065] When the frame 8 moves, the support rod 1092 drives the mounting rod 1094 to move via the positioning rod 1096. Then, the mounting rod 1094 drives the roller 1093 to roll on the corrugated guide plate 1091. When the roller 1093 rolls to the convex surface of the corrugated guide plate 1091, the roller 1093 drives the mounting rod 1094 to move upward, thereby driving the positioning rod 1096 to move upward within the support rod 1092. At the same time, the arc-shaped plate 1099 at the lower end pushes the guide rod 1094 upward. 8. The upper arc plate 1099 presses the guide rod 108 under the elastic force of the second spring 1100. When the lower arc plate 1099 presses the guide rod 108 upward, the guide rod 108 drives the guide tube 102 to rotate at a certain angle through the collar 107. When the roller 1093 rolls to the concave surface of the wave-shaped guide plate 1091, the guide rod 108 resets, thereby driving the nozzle 103 to rotate during spraying, increasing the spraying range and the disinfection range.

[0066] When the face recognition panel 1 is not in use, the staff can pull out the dustproof cloth 122 from the box 11 and lock the hanging block 125 on the stop bar 124 into the hanging hole 126 to limit the dustproof cloth 122, thereby preventing the face recognition panel 1 from being dusted and soiled when idle. The rotating block 18 facilitates the rotation of the rotating shaft 121, thereby making it easy to roll up the dustproof cloth 122.

[0067] The drive motor 7, water pump 106 and electric telescopic rod 17 can be purchased from the market and equipped with their own power supply. These are mature technologies in the field and have been fully disclosed, so they will not be described again in the specification.

[0068] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A face recognition device based on the Internet of Things, comprising a face recognition panel (1), characterized in that, Also includes: Mounting base (2), mounting base (2) is fixed to the back of face recognition panel (1), the face recognition panel (1) is covered with a protective cover (3), the back of face recognition panel (1) is fixed with four L-shaped fixing rods (4) arranged in a rectangular shape, a limit rod (5) is fixed between two of the fixing rods on one side, and a reciprocating screw (6) is rotatably connected between two of the fixing rods on the other side, and a drive motor (7) coaxially connected to the reciprocating screw (6) is fixedly installed on one side of one of the fixing rods. Card frame (8) is slidably disposed on the periphery of face recognition panel (1). Two symmetrically distributed sliders (21) are fixed on the side of card frame (8) near face recognition panel (1). One of the sliders (21) is slidably sleeved on the outer surface of limit rod (5), and the other slider (21) is threadedly sleeved on the outer surface of reciprocating screw (6). The surface of the protective cover (3) is provided with a rectangular through hole for the two sliders (21) to slide. The inside of card frame (8) is provided with cleaning cotton (9) that cooperates with the front of face recognition panel (1). The surface of card frame (8) is provided with a spraying disinfection mechanism (10) that cooperates with cleaning cotton (9). The spraying disinfection mechanism (10) includes: A fixing seat (101) is fixed to the outer surface of the frame (8). A conduit (102) is rotatably installed on the inner side of the fixing seat (101). Multiple nozzles (103) are fixedly installed on the outer surface of the conduit (102). A hose (104) is fixed on the outer surface of the conduit (102). A liquid storage tank (105) is fixed at one end of the frame (8). A water pump (106) that cooperates with the hose (104) is fixedly installed on the top surface of the liquid storage tank (105). A collar (107) is fixedly sleeved on the outer surface of the conduit (102). A guide rod (108) is fixed on the outer surface of the collar (107). A rotation adjustment component (109) that cooperates with the guide rod (108) is provided on one side of the frame (8). The rotation adjustment assembly (109) includes: A corrugated guide plate (1091) is fixed to one side of the protective cover (3). A support rod (1092) is fixed on the side of the frame (8) away from the liquid storage tank (105). A roller (1093) is rolled on the surface of the corrugated guide plate (1091). An installation rod (1094) is rotatably connected to one side of the roller (1093). Two fixing blocks (1095) are fixed on one side of the installation rod (1094). A positioning rod (1096) is fixed between the two fixing blocks (1095). A first spring (1097) is sleeved on the outer surface of the positioning rod (1096). The positioning rod (1096) moves through the support rod (1092). A rectangular frame (1098) is fixed to the top of the mounting rod (1094). The rectangular frame (1098) has two arc-shaped plates (1099) inside. One of the arc-shaped plates (1099) is fixed to the inner bottom wall of the rectangular frame (1098), and the other arc-shaped plate (1099) is slidably disposed inside the rectangular frame (1098). A second spring (1100) is fixed to the surface of the other arc-shaped plate (1099). The end of the second spring (1100) is fixed to the inner side of the rectangular frame (1098). The end of the guide rod (108) is located between the two arc-shaped plates (1099).

2. The IoT-based face recognition device according to claim 1, characterized in that, The bottom surface of the protective cover (3) is fixed with a placement box (11), and the interior of the placement box (11) is provided with a dustproof component (12) that cooperates with the face recognition panel (1).

3. The IoT-based face recognition device according to claim 2, characterized in that, The dustproof component (12) includes: A rotating shaft (121) is rotatably mounted on the inner wall of the placement box (11). A dustproof cloth (122) is fixedly wrapped around the outer surface of the rotating shaft (121). A cloth outlet hole (123) that cooperates with the dustproof cloth (122) is opened on one side of the placement box (11). A stop bar (124) is fixed to the end face of the dustproof cloth (122). Two symmetrically distributed hanging blocks (125) are fixed on one side of the stop bar (124). Two symmetrically distributed hanging holes (126) are opened on the surface of the protective cover (3) corresponding to the hanging blocks (125).

4. The IoT-based face recognition device according to claim 3, characterized in that, The bottom surface of the protective cover (3) is fixed with a mounting bracket (13), and the inner side of the mounting bracket (13) is rotatably connected with a guide roller (14).

5. The IoT-based face recognition device according to claim 1, characterized in that, An L-shaped bracket (15) is rotatably mounted on the inner side of the mounting base (2). A base (16) is fixed at the bottom end of the L-shaped bracket (15). Four rectangular connection holes are opened on the surface of the base (16).

6. The IoT-based face recognition device according to claim 5, characterized in that, An electric telescopic rod (17) is rotatably mounted on one side of the L-shaped bracket (15), and the telescopic end of the electric telescopic rod (17) is rotatably connected to the inner side of the mounting base (2).

7. The IoT-based face recognition device according to claim 3, characterized in that, One end of the rotating shaft (121) is fixed with a rotating block (18), the outer surface of the frame (8) is threaded with a limiting bolt (19) corresponding to the cleaning cotton (9), the outer surface of the frame (8) is fixed with a limiting block (20), and the hose (104) moves through the limiting block (20).

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