Passport machine with NFC face recognition function and use method of passport machine

Abstract

The invention relates to the technical field of face recognition, and discloses an NFC face recognition passport machine and a using method thereof.The NFC face recognition passport machine comprises a lifting assembly, the lifting assembly comprises a machine body, an NFC induction area is arranged on the outer surface of the machine body, and an infrared sensor is fixedly connected to the outer wall of the machine body. According to the method, a passport is placed in an NFC induction area, and when it is detected that a person stands on the front side, a motor is started and drives a first rotating shaft to rotate, then a sliding shaft is driven to move towards the lower side, the sliding shaft drives a fixing block to move in the moving process, and the fixing block drives a camera to move together through a limiting rod in the moving process; when the camera moves until the machine body does not shield the camera, the camera can judge whether the camera directly faces the face of a user or not, if not, the motor continues to rotate to drive the camera to move downwards until the camera directly faces the face, and the camera can adapt to people with large height difference.

Description

Technical Field

[0001] The present invention relates to the technical field of face recognition, and in particular to a passport machine with NFC face recognition and a use method thereof. Background Art

[0002] With the growth of global travel demand and the improvement of security requirements, the technology of passport machines continues to evolve. Passport machines with NFC (near field communication) and facial recognition technology have become an important tool for modern identity verification. NFC technology allows the device to quickly and securely read the electronic chip information in the passport, ensuring efficient transmission and verification of data. At the same time, facial recognition technology provides a more accurate way to confirm identity by capturing the user's facial features and comparing them with the passport photo. The combination of this device not only improves customs clearance efficiency and reduces queuing time, but also effectively prevents the risk of identity theft and passport forgery.

[0003] When performing face recognition on passport machines, the camera is usually fixed in one position and has only limited rotation capabilities. This design limits its recognition effect when facing people with large height differences, especially for taller or shorter individuals, it is often impossible to effectively capture the frontal facial image. This limitation not only affects the accuracy of recognition, but may also lead to misjudgment or unverifiable situations. To address the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a passport machine with NFC face recognition, including a lifting assembly, the lifting assembly includes a body, an NFC sensing area is arranged on the outer surface of the body, and an infrared sensor is fixedly connected to the outer wall of the body;

[0005] The shielding assembly includes a fixed rod arranged inside the body, a second spring is fixedly connected to the bottom of the fixed rod, and a sliding sleeve is slidably connected to the outer surface of the fixed rod;

[0006] The air blowing assembly comprises an air guiding cavity 2 opened in the body, an air guiding hose is fixedly connected to the inner wall of the body, and a fixed shell is fixedly connected to the top of the air guiding hose.

[0007] Preferably, the inner wall of the machine body is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotating shaft 1, the outer surface of the rotating shaft 1 is rotatably connected with the inner wall of the machine body, the outer surface of the rotating shaft 1 contacts with a belt, the inner wall of the belt contacts with a rotating shaft 2, the rotating shaft 1 is transmission connected with the rotating shaft 2 through the belt, the outer surface of the rotating shaft 2 is rotatably connected with the inner wall of the machine body, a fixed block is fixedly connected with the front side of the belt, a sliding shaft is fixedly connected with the inner wall of the fixed block, the outer surface of the sliding shaft is slidably connected with the inner wall of the machine body, and the inner wall of the fixed block is slidably connected with a limiting rod. When someone uses the device, the user stands in front of the machine body and places the passport on the NFC sensing area. When the NFC sensing area senses the passport information and the infrared sensor detects that someone is standing in front, the motor will be started and driven. The movable shaft one rotates, and during the rotation process, the shaft one drives the shaft two to rotate through the belt, and during the rotation process, the belt drives the sliding shaft to move downward, and the sliding shaft drives the fixed block to move during the movement, and the fixed block drives the camera to move together through the limit rod during the movement. When the camera moves to the point where the body no longer blocks it, the camera will determine whether it is facing the user's face. If it is not facing the face, the motor will continue to rotate, and then drive the camera to move downward until the camera is facing the face. This design can adjust the position of the camera according to people of different heights, adapt to people with large height differences, improve recognition accuracy, and prevent misjudgment or failure to verify.

[0008] Preferably, a camera is fixedly connected to the front of the limit rod, and a spring 1 is sleeved on the outer surface of the limit rod. The front of the spring 1 is fixedly connected to the outer wall of the fixed block, and the back of the spring 1 is fixedly connected to the outer wall of the limit rod. The back of the camera contacts a guide plate, and the top and bottom of the guide plate are fixedly connected to the inner wall of the machine body. During the downward movement of the camera, it will move along the guide plate. When the camera moves to the inclined position of the guide plate, as the camera continues to move downward, the camera will drive the limit rod 1 to move toward the front along the inclined surface of the guide plate and compress the spring 1, thereby making the front of the camera flush with the outer wall of the machine body. When the camera shooting verification is completed, the reversing motor drives the camera to reset. During the process of the camera resetting upward and crossing the inclined surface of the guide plate, the camera will move toward the back under the action of the spring 1 to complete the reset. This design can move the camera to the front by a certain distance before shooting, so that the camera can obtain a larger field of view, thereby preventing the front of the camera from being blocked by a part of the field of view by the body when it is inside the machine body, resulting in the inability to capture the complete face.

[0009] Preferably, the back side of the fixed rod is fixedly connected to the front side of the sliding shaft, the outer surface of the sliding sleeve is slidably connected to the inner wall of the machine body, the bottom of the sliding sleeve is fixedly connected to a pressure plate, and the bottom of spring two is fixedly connected to the top of the pressure plate. During the downward movement of the sliding shaft, it will also drive the fixed rod to move downward. The fixed rod will first drive the sliding sleeve to move downward through spring two, and the sliding sleeve will drive the pressure plate to move downward during the movement.

[0010] Preferably, the outer surface of the pressure plate is slidably connected to the inner wall of the machine body, the inner wall of the machine body is slidably connected with a sealing plate, the outer surface of the sealing plate is slidably connected to a limiting frame, the top of the limiting frame is fixedly connected to the inner wall of the machine body, the bottom of the sealing plate is fixedly connected to a spring three, the bottom of the spring three is fixedly connected to the inner wall of the limiting frame, and the inner wall of the sealing plate is fixedly connected to a one-way valve, during the movement of the pressure plate, it will stretch the gas in the top space and generate negative pressure.

[0011] Preferably, two air guide cavities 1 are provided inside the body, and two baffles are slidably connected to the inner wall of the body, and the two baffles are fixedly connected with springs 4 on the sides away from each other, and the springs 4 are fixedly connected to the inner wall of the body on the side away from the baffles, and the two baffles are fixedly connected with air baffles on the sides away from each other, and the outer surfaces of the air baffles are slidably connected to the inner wall of the body, and the negative pressure generated can suck the air in the two air guide cavities 1 into the space on the top of the pressure plate. At this time, negative pressure will also be generated in the air guide cavity 1, so the two baffles will be sucked in the direction away from each other due to the negative pressure and compress the springs 4, and at this time the baffles will enter the interior of the body, and the camera will be exposed and no longer blocked by the baffles. In the above process, the negative pressure will also give the sealing plate a downward suction force, but because the elastic force of spring three is greater than the elastic force of spring four, it will not move downward first, and when the baffle moves to the final position, as As the baffle plate continues to move downward, the negative pressure in the space at the top of the pressure plate will become greater and greater. When the negative pressure increases to a certain level, the downward suction force applied to the sealing plate will overcome the elastic force of spring three and drive the sealing plate to move downward. When the sealing plate moves to separate from the inner wall of the machine body, the external air can be sucked into the limit frame and enter the space at the top of the pressure plate through the through hole therein, thereby preventing the negative pressure in the space from being too large, causing the device to operate under an excessively high load. During the resetting of the device, the air baffle plate will block the interior of the machine body again, and the air sucked into the space at the top of the pressure plate will be discharged from the one-way valve. The one-way valve only allows the air in the space at the top of the pressure plate to be discharged to the outside. This design can block the interior of the machine body through the air baffle plate, which can effectively prevent the camera from being affected by dust, dirt or other external factors when it is not needed, thereby ensuring its cleanliness and normal operation.

[0012] Preferably, the outer wall of the fixed shell is slidably connected to the outer wall of the camera, the back side of the fixed shell is fixedly connected to a connecting plate, the back side of the connecting plate is fixedly connected to the front side of the sliding shaft, and the front side of the fixed shell is fixedly connected to a nozzle. In the process of the pressure plate moving downward, it will also compress the air in the bottom space thereof, and can push the compressed air into the second air guide cavity, and the second air guide cavity will pass the air into the air guide hose, and the air guide hose will pass the air into the fixed shell, and the air passed into the fixed shell will finally be ejected from the nozzle, and the ejected air will hit the outer wall of the camera, thereby blowing away any dust that may exist on the front side of the camera. This design can automatically clean the camera, keep the lens clear, ensure the shooting effect, prevent dust from accumulating on the camera lens, affect the shooting clarity and image quality, and cause misjudgment or failure to verify.

[0013] A method for using a passport machine with NFC facial recognition includes the following steps:

[0014] S1: When using this device, place the passport on the NFC sensing area. When the infrared sensor detects that there is a person standing in front of it, the motor will be activated, which will drive the camera to move downward and move forward along the guide plate until it is facing the person's face.

[0015] S2: When the sliding shaft moves downward, the pressure plate stretches the air on its top, which creates negative pressure in the space above the pressure plate, driving the two shielding plates away from each other, exposing the camera.

[0016] S3: When the pressure plate moves downward, it will also compress the air in the bottom space thereof and push the compressed air into the second air guide cavity. The air will eventually be ejected from the nozzle and hit the outer wall of the camera.

[0017] The present invention has the following beneficial effects:

[0018] 1. When someone uses the device of the present invention, the user stands in front of the body and places the passport at the NFC sensing area. When the NFC sensing area senses the passport information and the infrared sensor detects that someone is standing in front, the motor will be started and drive the rotating shaft 1 to rotate. During the rotation process, the rotating shaft 1 will drive the rotating shaft 2 to rotate through the belt. During the rotation process, the belt will drive the sliding shaft to move downward. During the movement process, the sliding shaft will drive the fixed block to move. During the movement process, the fixed block will drive the camera 1 to move together through the limit rod. When the camera moves to the point where the body no longer blocks it, the camera will determine whether it is facing the user's face. If it is not facing the face, the motor will continue to rotate, thereby driving the camera to move downward until the camera is facing the face. This design can adjust the position of the camera according to people of different heights, adapt to people with large height differences, improve the accuracy of recognition, and prevent misjudgment or failure to verify.

[0019] 2. In the process of the camera moving downward, the camera will move along the guide plate. When the camera moves to the inclined position of the guide plate, as the camera continues to move downward, the camera will drive the limit rod 1 to move toward the front along the inclined surface of the guide plate and compress the spring 1, thereby making the front of the camera flush with the outer wall of the body. When the camera shooting verification is completed, the reversing motor drives the camera to reset. In the process of the camera resetting upward over the inclined surface of the guide plate, the camera will move toward the back under the action of the spring 1 to complete the reset. This design can move the camera toward the front a certain distance before shooting, so that the camera can obtain a larger field of view, and prevent the front of the camera from being blocked by the body when it is inside the body, resulting in the inability to capture the complete face.

[0020] 3. In the process of the sliding shaft moving downward, the present invention will also drive the fixed rod to move downward together. The fixed rod will first drive the sliding sleeve to move downward through the spring two. The sliding sleeve will drive the pressure plate to move downward together during the movement. During the movement of the pressure plate, it will stretch the gas in the space above it and generate negative pressure, and then the air in the two air guide chambers one can be sucked into the space above the pressure plate. At this time, negative pressure will also be generated in the air guide chamber one, so the two baffles will be sucked away from each other due to the negative pressure and compress the spring four. At this time, the baffles will enter the interior of the body, and the camera will be exposed and no longer blocked by the baffles. In the above process, the negative pressure will also give the sealing plate a downward suction force, but because the elastic force of the spring three is greater than the elastic force of the spring four, it will not move downward first. When the baffle moves to the final position, as the baffle continues to move downward When the air in the top of the pressure plate moves, the negative pressure in the space at the top of the pressure plate will become larger and larger. When the negative pressure increases to a certain level, the downward suction force applied to the sealing plate will overcome the elastic force of spring three and drive the sealing plate to move downward. When the sealing plate moves to separate from the inner wall of the machine body, the external air can be sucked into the limit frame and enter the space at the top of the pressure plate through the through hole opened therein, thereby preventing the negative pressure in the space from being too large, causing the device to operate under an excessively high load state. During the resetting of the device, the air baffle plate will block the interior of the machine body again, and the air sucked into the space at the top of the pressure plate will be discharged from the one-way valve. The one-way valve only allows the air in the space at the top of the pressure plate to be discharged to the outside. This design can block the interior of the machine body through the baffle plate, which can effectively prevent the camera from being affected by dust, dirt or other external factors when it is not needed, thereby ensuring its cleanliness and normal operation.

[0021] 4. In the process of the downward movement of the pressure plate of the present invention, it will also compress the air in the bottom space thereof, and push the compressed air into the second air guide cavity, which will pass the air into the air guide hose, which will pass the air into the fixed shell, and the air passed into the fixed shell will finally be ejected from the nozzle, and the ejected air will hit the outer wall of the camera, thereby blowing away the dust that may exist on the front of the camera. This design can automatically clean the camera, keep the lens clear, ensure the shooting effect, and prevent the camera lens from accumulating dust, which will affect the shooting clarity and image quality, and cause misjudgment or failure to verify. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the internal cross-sectional structure of the machine body of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the overall structure of the camera of the present invention;

[0026] Figure 4 For the present invention Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0027] Figure 5 It is a schematic diagram of the overall structure of the pressing plate of the present invention;

[0028] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of B;

[0029] Figure 7 It is a schematic diagram of the cross-sectional structure of the left side of the machine body of the present invention;

[0030] Figure 8 This is a schematic diagram of the overall structure of the shielding plate of the present invention;

[0031] Fig. 9 It is a schematic diagram of the overall structure of the nozzle of the present invention;

[0032] Fig.10 It is a schematic diagram of the working process of the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] In the figure: 1. lifting assembly; 101. body; 102. NFC sensing area; 103. infrared sensor; 104. motor; 105. shaft one; 106. belt; 107. shaft two; 108. sliding shaft; 109. fixed block; 110. camera; 111. limit rod; 112. spring one; 113. guide plate; 2. shielding assembly; 201. fixed rod; 202. spring two; 203. sliding sleeve; 204. pressure plate; 205. sealing plate; 206. limit frame; 207. spring three; 208. one-way valve; 209. air guide cavity one; 210. shielding plate; 211. air baffle plate; 212. spring four; 3. blowing assembly; 301. air guide cavity two; 302. air guide hose; 303. fixed shell; 304. connecting plate; 305. nozzle. DETAILED DESCRIPTION

[0035] The following will be combined with 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] For example, see Figure 1 - Figure 4 The present invention is a passport machine with NFC face recognition, comprising a lifting assembly 1, the lifting assembly 1 comprising a body 101, an NFC sensing area 102 is arranged on the outer surface of the body 101, and an infrared sensor 103 is fixedly connected to the outer wall of the body 101;

[0037] The shielding assembly 2 includes a fixed rod 201 disposed inside the body 101, a spring 202 is fixedly connected to the bottom of the fixed rod 201, and a sliding sleeve 203 is slidably connected to the outer surface of the fixed rod 201;

[0038] The air blowing assembly 3 includes an air guiding cavity 301 opened inside the body 101 , an air guiding hose 302 is fixedly connected to the inner wall of the body 101 , and a fixed shell 303 is fixedly connected to the top of the air guiding hose 302 .

[0039] The inner wall of the body 101 is fixedly connected with a motor 104, and the output end of the motor 104 is fixedly connected with a rotating shaft 105. The outer surface of the rotating shaft 105 is rotatably connected to the inner wall of the body 101. The outer surface of the rotating shaft 105 contacts with a belt 106, and the inner wall of the belt 106 contacts with a rotating shaft 2 107. The rotating shaft 105 is transmission-connected to the rotating shaft 2 107 through the belt 106, and the outer surface of the rotating shaft 2 107 is rotatably connected to the inner wall of the body 101. A fixed block 109 is fixedly connected to the front of the belt 106, and a sliding shaft 108 is fixedly connected to the inner wall of the fixed block 109. The outer surface of the sliding shaft 108 is slidably connected to the inner wall of the body 101, and the inner wall of the fixed block 109 is slidably connected to a limiting rod 111. When someone uses the device, the user stands in front of the body 101 and places the passport at the NFC sensing area 102. When the NFC sensing area 102 senses the passport information and the infrared sensor 103 detects that someone is standing in front When the camera 110 is moved to the position where the body 101 is no longer blocking it, the camera 110 will determine whether it is facing the user's face. If it is not facing the user's face, the motor 104 will continue to rotate, thereby driving the camera 110 to move downward until the camera 110 is facing the user's face. This design can adjust the position of the camera 110 according to people of different heights, adapt to people with large height differences, improve recognition accuracy, and prevent misjudgment or failure to verify.

[0040] The front side of the limit rod 111 is fixedly connected to the camera 110, and the outer surface of the limit rod 111 is sleeved with a spring 112. The front side of the spring 112 is fixedly connected to the outer wall of the fixed block 109, and the back side of the spring 112 is fixedly connected to the outer wall of the limit rod 111. The back side of the camera 110 contacts a guide plate 113, and the top and bottom of the guide plate 113 are fixedly connected to the inner wall of the body 101. When the camera 110 moves downward, it moves along the guide plate 113. When the camera 110 moves to the inclined position of the guide plate 113, as the camera 110 continues to move downward, the camera 110 will move along the inclined surface of the guide plate 113, driving the limit rod 111 together The camera 110 moves toward the front and compresses the spring 112, thereby making the front of the camera 110 flush with the outer wall of the body 101. When the camera 110 completes the shooting verification, the reversing motor 104 drives the camera 110 to reset. In the process of the camera 110 resetting upward and crossing the inclined surface of the guide plate 113, the camera 110 moves toward the back under the action of the spring 112 to complete the reset. This design can move the camera 110 toward the front by a certain distance before shooting, so that the camera 110 can obtain a larger field of view, and prevent the front of the camera 110 from being partially blocked by the body 101 when it is inside the body 101, resulting in the inability to capture the complete face.

[0041] For example 2, please refer to Figure 5 - Fig.10 The present invention is a passport machine with NFC facial recognition. On the basis of Example 1, the back of the fixed rod 201 is fixedly connected to the front of the sliding shaft 108, the outer surface of the sliding sleeve 203 is slidingly connected to the inner wall of the body 101, and the bottom of the sliding sleeve 203 is fixedly connected to the pressing plate 204, and the bottom of the spring 202 is fixedly connected to the top of the pressing plate 204. When the sliding shaft 108 moves downward, it will also drive the fixed rod 201 to move downward. The fixed rod 201 will first drive the sliding sleeve 203 to move downward through the spring 202, and the sliding sleeve 203 will drive the pressing plate 204 to move downward during the movement.

[0042] The outer surface of the pressure plate 204 is slidably connected to the inner wall of the body 101, and the inner wall of the body 101 is slidably connected with a sealing plate 205. The outer surface of the sealing plate 205 is slidably connected to a limiting frame 206. The top of the limiting frame 206 is fixedly connected to the inner wall of the body 101. The bottom of the sealing plate 205 is fixedly connected to a spring three 207. The bottom of the spring three 207 is fixedly connected to the inner wall of the limiting frame 206. The inner wall of the sealing plate 205 is fixedly connected to a one-way valve 208. During the movement of the pressure plate 204, it will stretch the gas in the top space thereof and generate negative pressure.

[0043] Two air guide cavities 209 are provided inside the machine body 101, and two baffle plates 210 are slidably connected to the inner wall of the machine body 101. The two baffle plates 210 are fixedly connected with springs 212 on the sides away from each other. The springs 212 are fixedly connected to the inner wall of the machine body 101 on the side away from the baffle plates 210. The two baffle plates 210 are fixedly connected with air baffle plates 211 on the sides away from each other. The outer surface of the air baffle plates 211 is slidably connected to the inner wall of the machine body 101. The negative pressure generated can suck the air in the two air guide cavities 209 into the pressure plate In the space at the top of the camera 204, negative pressure is also generated in the air guide cavity 1 209. Therefore, the two shielding plates 210 are sucked away from each other due to the negative pressure and the spring 4 212 is compressed. At this time, the shielding plates 210 enter the interior of the body 101, and the camera 110 is exposed and no longer blocked by the shielding plates 210. In the above process, the negative pressure also gives the sealing plate 205 a downward suction force, but because the elastic force of the spring 3 207 is greater than the elastic force of the spring 4 212, it will not move downward first. When the shielding plates 210 move After reaching the final position, as the shielding plate 210 continues to move downward, the negative pressure in the space at the top of the pressure plate 204 will become larger and larger. When the negative pressure increases to a certain extent, the downward suction force applied to the sealing plate 205 will overcome the elastic force of the spring three 207 and drive the sealing plate 205 to move downward. When the sealing plate 205 moves to separate from the inner wall of the body 101, the external air can be sucked into the limiting frame 206 and enter the space at the top of the pressure plate 204 through the through hole provided therein, thereby preventing the negative pressure in the space from being too large, causing the device to When operating under an excessively high load, during the device resetting process, the air baffle 211 will again shield the interior of the body 101, and the air sucked into the top space of the pressure plate 204 will be discharged from the one-way valve 208. The one-way valve 208 only allows the air in the top space of the pressure plate 204 to be discharged to the outside. This design can shield the interior of the body 101 through the baffle 210, which can effectively prevent the camera 110 from being affected by dust, dirt or other external factors when not in use, thereby ensuring its cleanliness and normal operation.

[0044] The outer wall of the fixed shell 303 is slidably connected to the outer wall of the camera 110, and a connecting plate 304 is fixedly connected to the back of the fixed shell 303. The back of the connecting plate 304 is fixedly connected to the front of the sliding shaft 108, and a nozzle 305 is fixedly connected to the front of the fixed shell 303. When the pressure plate 204 moves downward, it will also compress the air in the bottom space thereof, and push the compressed air into the second air guide cavity 301. The second air guide cavity 301 will pass the air into the air guide hose 302, and the air guide hose 302 will pass the air into the fixed shell 303. The air passed into the fixed shell 303 will finally be ejected from the nozzle 305, and the ejected air will hit the outer wall of the camera 110, thereby blowing away the dust that may exist on the front of the camera 110. This design can automatically clean the camera 110, keep the lens clear, ensure the shooting effect, and prevent the camera lens from accumulating dust, which will affect the shooting clarity and image quality, resulting in misjudgment or failure to verify.

[0045] The method of using the passport machine includes the following steps:

[0046] S1: When using the device, place the passport on the NFC sensing area 102, and when the infrared sensor 103 detects that there is a person standing in front of it, the motor 104 will be activated, thereby driving the camera 110 to move downward and move forward along the guide plate 113 until it faces the person's face;

[0047] S2: When the sliding shaft 108 moves downward, the pressure plate 204 stretches the air on its top, thereby generating negative pressure in the space above the pressure plate 204, so as to drive the two shielding plates 210 away from each other, so that the camera 110 is exposed;

[0048] S3: When the pressure plate 204 moves downward, it will also compress the air in the bottom space thereof and push the compressed air into the second air guide cavity. The air will eventually be ejected from the nozzle and hit the outer wall of the camera.

[0049] A specific application of this embodiment is:

[0050] When using the device, first move the device to a designated location. When someone uses the device, the user stands in front of the body 101 and places the passport on the NFC sensing area 102. When the NFC sensing area 102 senses the passport information and the infrared sensor 103 detects that someone is standing in front, the motor 104 is started and drives the shaft 105 to rotate. The shaft 105 drives the shaft 2 107 to rotate through the belt 106 during the rotation process. The belt 106 drives the sliding shaft 108 to move downward during the rotation process. The sliding shaft 108 moves downward during the movement process. The fixed block 109 is driven to move. During the movement of the fixed block 109, the camera 110 is driven to move together through the limit rod 111. When the camera 110 moves to the point where the body 101 no longer blocks it, the camera 110 determines whether it is facing the face of the user. If it is not facing the face, the motor 104 will continue to rotate, thereby driving the camera 110 to move downward until the camera 110 faces the face. This design can adjust the position of the camera 110 according to people of different heights, adapt to people with large height differences, improve the accuracy of recognition, and prevent misjudgment or failure to verify.

[0051] When the camera 110 moves downward, it moves along the guide plate 113. When the camera 110 moves to the inclined position of the guide plate 113, as the camera 110 continues to move downward, the camera 110 will move along the inclined surface of the guide plate 113, drive the limit rod 111 to move toward the front and compress the spring 112, so that the front of the camera 110 is flush with the outer wall of the body 101. When the camera 110 completes the shooting verification, the reversing motor 104 drives the camera 110 to reset. When the camera 110 resets upward and passes over the inclined surface of the guide plate 113, the camera 110 moves toward the back under the action of the spring 112 to complete the reset. This design can move the camera 110 toward the front by a certain distance before shooting, so that the camera 110 can obtain a larger field of view, and prevent the front of the camera 110 from being partially blocked by the body 101 when it is inside the body 101, resulting in failure to capture the complete face.

[0052] When the sliding shaft 108 moves downward, it will also drive the fixed rod 201 to move downward. The fixed rod 201 will first drive the sliding sleeve 203 to move downward through the spring 202. When the sliding sleeve 203 moves to the final position, the fixed rod 201 will compress the spring 202 to continue to move downward. During the movement of the sliding sleeve 203, the pressing plate 204 will be driven to move downward. During the movement of the pressing plate 204, the gas in the top space thereof will be stretched and negative pressure will be generated, thereby the air in the two air guide cavities 1 209 can be compressed. When air is sucked into the space on the top of the pressure plate 204, negative pressure is also generated in the air guide cavity 1 209. Therefore, the two shielding plates 210 are sucked away from each other due to the negative pressure and the spring 4 212 is compressed. At this time, the shielding plates 210 enter the interior of the body 101, and the camera 110 is exposed and no longer blocked by the shielding plates 210. In the above process, the negative pressure also gives the sealing plate 205 a downward suction force, but because the elastic force of the spring 3 207 is greater than the elastic force of the spring 4 212, it will not move downward first. When the shielding plates 210 are After the shielding plate 210 moves to the final position, as the shielding plate 210 continues to move downward, the negative pressure in the space at the top of the pressing plate 204 will become larger and larger. When the negative pressure increases to a certain extent, the downward suction force applied to the sealing plate 205 will overcome the elastic force of the spring 3 207 and drive the sealing plate 205 to move downward. When the sealing plate 205 moves to separate from the inner wall of the body 101, the external air can be sucked into the limiting frame 206 and enter the space at the top of the pressing plate 204 through the through hole provided therein, thereby preventing the negative pressure in the space from being too large, resulting in When the device is operated under an excessively high load, during the device resetting process, the air baffle 211 will again shield the interior of the body 101, and the air sucked into the space above the pressure plate 204 will be discharged from the one-way valve 208. The one-way valve 208 only allows the air in the space above the pressure plate 204 to be discharged to the outside. This design can shield the interior of the body 101 through the baffle 210, which can effectively prevent the camera 110 from being affected by dust, dirt or other external factors when it is not needed, ensuring its cleanliness and normal operation;

[0053] During the downward movement of the pressure plate 204, it will also compress the air in the space at its bottom, and push the compressed air into the second air guide cavity 301, which will pass the air into the air guide hose 302, which will pass the air into the fixed shell 303. The air passed into the fixed shell 303 will finally be ejected from the nozzle 305, and the ejected air will hit the outer wall of the camera 110, thereby blowing away any dust that may exist on the front of the camera 110. This design can automatically clean the camera 110, keep the lens clear, ensure the shooting effect, and prevent dust from accumulating on the camera lens, which will affect the shooting clarity and image quality, resulting in misjudgment or failure to verify.

[0054] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A passport machine with NFC face recognition, comprising a lifting assembly (1), wherein the lifting assembly (1) comprises a body (101), an outer surface of the body (101) is provided with an NFC sensing area (102), and an outer wall of the body (101) is fixedly connected with an infrared sensor (103), characterized in that: Also includes: A shielding assembly (2), the shielding assembly (2) comprising a fixed rod (201) arranged inside the body (101), a spring 2 (202) being fixedly connected to the bottom of the fixed rod (201), and a sliding sleeve (203) being slidably connected to the outer surface of the fixed rod (201); The blowing assembly (3) comprises an air guide cavity 2 (301) opened inside the machine body (101), an air guide hose (302) is fixedly connected to the inner wall of the machine body (101), and a fixed shell (303) is fixedly connected to the top of the air guide hose (302).

2. A passport machine with NFC face recognition according to claim 1, characterized in that: The inner wall of the machine body (101) is fixedly connected with a motor (104), the output end of the motor (104) is fixedly connected with a rotating shaft (105), the outer surface of the rotating shaft (105) is rotatably connected with the inner wall of the machine body (101), the outer surface of the rotating shaft (105) contacts with a belt (106), the inner wall of the belt (106) contacts with a rotating shaft (107), the rotating shaft (105) is transmission-connected with the rotating shaft (107) via the belt (106), the outer surface of the rotating shaft (107) is rotatably connected with the inner wall of the machine body (101), the front surface of the belt (106) is fixedly connected with a fixed block (109), the inner wall of the fixed block (109) is fixedly connected with a sliding shaft (108), the outer surface of the sliding shaft (108) is slidably connected with the inner wall of the machine body (101), and the inner wall of the fixed block (109) is slidably connected with a limiting rod (111).

3. A passport machine with NFC face recognition according to claim 2, characterized in that: The front side of the limiting rod (111) is fixedly connected to a camera (110); the outer surface of the limiting rod (111) is sleeved with a spring 1 (112); the front side of the spring 1 (112) is fixedly connected to the outer wall of the fixing block (109); the back side of the spring 1 (112) is fixedly connected to the outer wall of the limiting rod (111); the back side of the camera (110) is in contact with a guide plate (113); the top and bottom of the guide plate (113) are fixedly connected to the inner wall of the body (101).

4. A passport machine with NFC face recognition according to claim 3, characterized in that: The back side of the fixed rod (201) is fixedly connected to the front side of the sliding shaft (108); the outer surface of the sliding sleeve (203) is slidingly connected to the inner wall of the machine body (101); the bottom of the sliding sleeve (203) is fixedly connected to a pressure plate (204); and the bottom of the spring 2 (202) is fixedly connected to the top of the pressure plate (204).

5. A passport machine with NFC face recognition according to claim 4, characterized in that: The outer surface of the pressure plate (204) is slidably connected to the inner wall of the body (101), the inner wall of the body (101) is slidably connected to a sealing plate (205), the outer surface of the sealing plate (205) is slidably connected to a limiting frame (206), the top of the limiting frame (206) is fixedly connected to the inner wall of the body (101), the bottom of the sealing plate (205) is fixedly connected to a spring three (207), the bottom of the spring three (207) is fixedly connected to the inner wall of the limiting frame (206), and the inner wall of the sealing plate (205) is fixedly connected to a one-way valve (208).

6. A passport machine with NFC face recognition according to claim 5, characterized in that: Two air guide cavities (209) are provided inside the machine body (101); two baffle plates (210) are slidably connected to the inner wall of the machine body (101); the two baffle plates (210) are fixedly connected to springs (212) on the sides away from each other; the springs (212) are fixedly connected to the inner wall of the machine body (101) on the side away from the baffle plates (210); the two baffle plates (210) are fixedly connected to air baffle plates (211) on the sides away from each other; and the outer surfaces of the air baffle plates (211) are slidably connected to the inner wall of the machine body (101).

7. A passport machine with NFC face recognition according to claim 6, characterized in that: The outer wall of the fixed shell (303) is slidably connected to the outer wall of the camera (110), the back of the fixed shell (303) is fixedly connected to a connecting plate (304), the back of the connecting plate (304) is fixedly connected to the front of the sliding shaft (108), and the front of the fixed shell (303) is fixedly connected to a nozzle (305).

8. A method for using a passport machine with NFC facial recognition, using the passport machine as claimed in claim 7, characterized in that: The steps include: S1: When using the device, a passport is placed on the NFC sensing area (102), and when the infrared sensor (103) detects that a person is standing in front of it, the motor (104) is activated, thereby driving the camera (110) to move downward and move forward along the guide plate (113) until it faces the person's face; S2: When the sliding shaft (108) moves downward, the pressure plate (204) stretches the air on its top, thereby generating negative pressure in the space on the top of the pressure plate (204), thereby driving the two shielding plates (210) away from each other, so that the camera (110) is exposed; S3: As the pressure plate (204) moves downward, it also compresses the air in the space at its bottom and pushes the compressed air into the second air guide cavity. The air will eventually be ejected from the nozzle and hit the outer wall of the camera.

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