Intelligent office face recognition access control and attendance checking integrated device based on Internet of Things

Abstract

The invention relates to the technical field of facial recognition access control, in particular to an internet-of-things-based intelligent office facial recognition access control and attendance integrated device, which comprises a supporting upright post, a recognition control structure is bolted to the top of the supporting upright post, and a display module is arranged at the top in the recognition control structure. A card reading module and a fingerprint identification module are arranged on the two sides of the bottom of the interior of the identification control structure respectively, and a multi-dimensional image acquisition structure is bolted to the front side of the identification control structure; the multi-dimensional image acquisition structure comprises an installation cylinder, and the front side of the installation cylinder is in bolted connection with a fixed cylinder. The intelligent office face recognition access control and attendance checking integrated device based on the Internet of Things has the advantages that accurate collection of multi-dimensional features of the whole face is achieved, light supplementation is dynamically adjusted according to the detected part and the shooting distance, it is ensured that clear and accurate face images are collected, and the face recognition effect is good. And therefore, the precision and reliability of face recognition can be obviously improved.

Description

Technical Field

[0001] The present invention relates to the technical field of facial recognition access control, in particular to an integrated device of facial recognition access control and attendance for intelligent offices based on the Internet of Things. Background Art

[0002] As we all know, the access control and attendance machine is a type of access control machine that can realize access control and attendance management at the same time. The access control and attendance machine is the core control device of the access control system. It has reliable data storage and no data loss during power failure. It integrates management and automatic control to realize the automatic management of access control. The data can also be used for attendance, realizing the dual functions of access control and attendance, and can be seamlessly connected with the one-card system.

[0003] There are many obvious defects in the current facial recognition access control technology field. The existing technology has the following problems: most of the IoT-based smart office facial recognition access control and attendance integration devices only rely on the frontal plane features of the face for recognition, and can only obtain limited two-dimensional facial information, and it is difficult to fully collect the multi-dimensional feature information of the face, which greatly reduces the recognition accuracy. Therefore, when encountering individuals with similar facial plane features, misidentification is very likely to occur, which seriously affects the accuracy and security of the access control system;

[0004] On the other hand, traditional access control and attendance devices usually use fixed fill light settings, which cannot be dynamically adjusted according to the shooting distance and the facial parts that need to be detected. In actual use, different people are at different distances from the access control equipment, and different facial parts have different requirements for light. The fixed fill light method can easily cause the collected images to be overexposed or underexposed, making facial features unclear, further reducing the recognition accuracy. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides an integrated smart office facial recognition access control and attendance device based on the Internet of Things, which has the advantages of realizing accurate collection of multi-dimensional features of the entire face, and dynamically adjusting fill light according to the detection part and shooting distance to ensure the collection of clear and accurate facial images, thereby significantly improving the accuracy and reliability of facial recognition.

[0007] (II) Technical solution

[0008] The above technical objectives of the present invention are achieved through the following technical solutions: an integrated device for intelligent office facial recognition access control and attendance based on the Internet of Things, comprising a support column, a recognition control structure is bolted to the top of the support column, a display module is arranged on the top of the recognition control structure, and a card reading module and a fingerprint recognition module are arranged on both sides of the bottom of the recognition control structure, and a multi-dimensional image acquisition structure is bolted to the front side of the recognition control structure;

[0009] The multi-dimensional image acquisition structure comprises a mounting tube, a fixing tube is bolted to the front side of the mounting tube, a dynamic adjustment component is arranged inside the fixing tube, and a camera fill light integrated component is bolted to the front side of the dynamic adjustment component.

[0010] By adopting the above technical solution, through setting up a multi-dimensional image acquisition structure, the position and angle of the camera fill light integrated component can be flexibly adjusted to comprehensively collect the features of various parts of the face. Combined with the fine control of the dynamic adjustment component, rich multi-dimensional facial feature information can be obtained, which greatly improves the recognition accuracy, effectively avoids misidentification caused by similar facial planar features, and significantly improves the accuracy and security of the access control system. The camera fill light integrated component can flexibly adjust the fill light direction and intensity according to the shooting distance and the facial part that needs to be detected. This intelligent dynamic fill light method effectively avoids overexposure or underexposure of the image, ensures that the collected facial images are clear and accurate, provides a high-quality image foundation for facial recognition, and further improves the recognition accuracy.

[0011] The present invention is further configured as follows: the dynamic adjustment component includes a limiting track, the limiting track is arranged inside a fixed cylinder, the fixed cylinder is rotatably connected with a driving shaft inside, and a transmission plate is bolted to one side of the driving shaft, a synchronization plate is movably arranged on the front side of the transmission plate, a slip ring is bolted to one side of the synchronization plate, and the slide rod is sleeved on the surface of the limiting track, a movable part is rotatably arranged on the front side of the driving shaft, and the surface of the movable part is connected to the inner wall of the fixed cylinder, the front side of the movable part is connected to a camera fill light integrated component, a ring is rotatably sleeved on the surface of the movable part, and a connecting rod is rotatably arranged on one side of the ring, and the other side of the connecting rod is connected to the synchronization plate.

[0012] By adopting the above technical solution, a dynamic adjustment component is set up. When the driving shaft rotates, it drives the transmission plate to rotate. The transmission plate drives the slip ring to slide on the limit track through the movably connected synchronization plate. When the slip ring moves to the protrusions at the four corners of the limit track, it will pull the movable part through the connecting rod and the ring accordingly, so that the position of the camera fill light integrated component is adjusted. Therefore, the feature information of the front face and other facial positions is collected through the camera fill light integrated component, which makes up for the deficiency of the existing technology that only the front face plane features can be obtained, greatly improves the comprehensiveness of facial feature collection, and thus improves the recognition precision and accuracy.

[0013] The present invention is further configured as follows: the movable part includes a fixed shaft, the fixed shaft is rotatably connected to the driving shaft, the front side of the fixed shaft is rotatably connected to the movable shaft, and the movable shaft is connected to the camera fill light integrated component, the surface of the movable shaft is sleeved with a fixed ring, and the surface of the fixed ring is provided with a tension spring in a ring shape, a fixed plate is provided on the other side of the tension spring, and the fixed plate is connected to the fixed tube on the side close to the inner wall of the fixed tube.

[0014] By adopting the above technical solution, by setting a movable part, when the slip ring moves to the protrusions at the four corners of the limit track, the movable shaft will be pulled to move through the connecting rod and the ring, so that the connection between the movable shaft and the fixed shaft is used as a fulcrum for position offset, and the tension spring corresponding to the offset position is stretched synchronously, thereby achieving the effect of adjusting the position of the camera fill light integrated component, so that the camera fill light integrated component can collect facial feature information on both sides, top and bottom of the face, and when the slip ring is between the protrusions of the limit track, the pulling on the movable shaft can be released. At this time, under the action of the tension spring, the camera fill light integrated component can be reset to the front position. Therefore, through multi-dimensional information collection, dynamic adjustment of multiple angles and multiple positions can be performed to meet the image collection requirements of different facial parts.

[0015] The present invention is further configured as follows: the limiting track is configured in a diamond shape as a whole, and the four corners of the limiting track are configured in smooth curves.

[0016] By adopting the above technical solution, a diamond-shaped limiting track with smooth curves at the four corners can provide a more flexible sliding path for the slip ring, making the movement of the synchronization plate and the camera fill light integrated component smoother, avoiding jamming and collision during movement, and improving the accuracy and efficiency of dynamic adjustment. In addition, the four corners of the limiting track can change the moving trajectory of the slip ring, thereby adjusting the acquisition position of the camera fill light integrated component.

[0017] The present invention is further configured as follows: the rear side of the driving shaft extends to the interior of the mounting cylinder and is rotatably connected thereto, the top of the interior of the mounting cylinder is rotatably connected to an output shaft, and one side of the output shaft is externally connected to a driving device, and the surfaces of the driving shaft and the output shaft are respectively sleeved with a driving gear and a semicircular gear, and the driving gear is meshed with the semicircular gear.

[0018] By adopting the above technical solution, the power transmission from the output shaft to the active shaft is realized by setting the meshing of the driving gear and the semicircular gear, providing a reliable power source for the dynamic adjustment component, and through the setting of the semicircular gear, the structures such as the slip ring can be made intermittent, so that the camera fill light integrated component can stay at a certain position, ensuring the accuracy of feature information collection.

[0019] The present invention is further configured as follows: the camera fill light integrated component includes a mounting frame, a circular array fill light is rotatably arranged inside the mounting frame, and a camera is bolted inside the circular array fill light, a connecting tube is bolted on the rear side of the mounting frame, and a sleeve is bolted on the rear side of the connecting tube, the sleeve is connected to a movable shaft, reflective plates are rotatably connected on all four sides of the surface of the mounting frame, and the reflective plates are used in conjunction with the circular array fill light, an adjusting piece is bolted on the surface of the connecting tube, and the rear side of the adjusting piece extends to the interior of the sleeve.

[0020] By adopting the above technical scheme, a camera fill light integrated component is set up, and a ring array fill light is set around the camera to provide lighting for the face in all directions. The reflector plate cooperates with the ring array fill light to reflect light so that different parts of the face can be evenly illuminated. The camera is responsible for collecting facial images. When the fill light angle or intensity needs to be adjusted, the reflector plate can be adjusted through the adjustment part. The fill light can be flexibly provided according to different facial parts and shooting distances, which effectively solves the problem of overexposure or underexposure of images caused by the fixed fill light method in the prior art, improves the quality of the collected images, and provides a guarantee for accurate facial recognition.

[0021] The present invention is further configured as follows: the adjusting member includes an inner gear ring, which is rotatably arranged inside the casing, and the inner part of the inner gear ring is annularly meshingly connected with a driven gear, and a screw rod is bolted to the front side of the driven gear, and the front side of the screw rod extends to the front side of the casing and is rotatably provided with a support plate, one side of the support plate is bolted to the connecting tube, a movable frame is threadedly connected to the surface of the screw rod, and the other side of the movable frame is rotatably connected to the reflective plate.

[0022] By adopting the above technical solution, by setting an adjustment piece, the meshing of the inner ring gear and the driven gear can drive the driven gear and the lead screw to rotate, and the position of the movable frame can be adjusted by the cooperation of the lead screw and the thread of the movable frame, so that the rotation angle of the reflector plate can be accurately controlled, thereby achieving fine adjustment of the fill light direction and intensity, meeting the fill light requirements of different facial parts and shooting distances, further improving the accuracy and adaptability of the fill light, and improving the quality of image acquisition.

[0023] The present invention is further configured as follows: a connecting seat is bolted to the rear side of the reflecting plate, the movable frame is rotatably connected to the connecting seat, and the movable frame is rotatably connected to the reflecting plate via the connecting seat.

[0024] By adopting the above technical solution, the connection between the movable frame and the reflector plate is made more stable and the rotation is more flexible through the setting of the connecting seat, thereby ensuring the control accuracy of the adjusting member on the reflector plate, thereby ensuring the stability and reliability of the fill light effect.

[0025] The present invention is further configured as follows: a driving gear is rotatably connected inside the sleeve, and the driving gear is meshed with the inner gear ring.

[0026] By adopting the above technical solution, the driving gear is meshed with the inner gear ring, so that when the driving gear rotates, the inner gear ring can be driven to rotate synchronously, thereby achieving the effect of synchronously driving multiple driven gears to rotate.

[0027] The present invention is further configured as follows: a connecting block is bolted to the rear side of the bottom of the camera, and a connecting rod is rotatably connected inside the connecting block, a moving block is rotatably connected to the bottom end of the connecting rod surface, and an electric cylinder is arranged inside the moving block, and the other side of the electric cylinder is bolted to the inner wall of the connecting tube.

[0028] By adopting the above technical solution, when the electric cylinder is extended and retracted, the moving block is pushed to move on the inner wall of the connecting tube. The moving block is rotatably connected to the connecting block at the bottom of the camera through a connecting rod. Therefore, the movement of the moving block will drive the camera to rotate at a certain angle through the connecting rod, further expanding the scope of image acquisition and improving the comprehensiveness of facial feature acquisition. It helps to solve the problem of incomplete facial feature acquisition in the prior art and improve recognition accuracy.

[0029] (III) Beneficial effects

[0030] Compared with the prior art, the present invention provides an integrated device for intelligent office facial recognition access control and attendance based on the Internet of Things, which has the following beneficial effects:

[0031] The IoT-based intelligent office facial recognition access control and attendance integrated device can flexibly adjust the position and angle of the camera fill light integrated component by setting a multi-dimensional image acquisition structure, comprehensively collect the features of various parts of the face, and combine with the fine control of the dynamic adjustment component to obtain rich multi-dimensional facial feature information, greatly improve the recognition accuracy, effectively avoid misidentification caused by similar facial planar features, and significantly improve the accuracy and security of the access control system. The camera fill light integrated component can flexibly adjust the fill light direction and intensity according to the shooting distance and the facial part to be detected. This intelligent dynamic fill light method effectively avoids overexposure or underexposure of the image, ensures that the collected facial image is clear and accurate, provides a high-quality image foundation for facial recognition, and further improves the recognition accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 is a schematic diagram of a multi-dimensional image acquisition structure in the present invention;

[0034] Figure 3 A schematic diagram of dynamically adjusting the component structure in the present invention;

[0035] Figure 4 It is a schematic diagram of the structure of the movable part in the present invention;

[0036] Figure 5 It is a schematic diagram of the connection between the installation cylinder and the fixed cylinder structure in the present invention;

[0037] Figure 6 It is a schematic diagram of the structure of the camera fill light integrated component in the present invention;

[0038] Figure 7 It is a schematic diagram of the connection between the camera and the connecting tube structure in the present invention;

[0039] Figure 8 It is a schematic diagram of the connection between the adjusting member and the casing structure in the present invention.

[0040] In the figure: 1, support column; 2, identification control structure; 3, display module; 4, card reader module; 5, fingerprint identification module; 6, multi-dimensional image acquisition structure; 61, installation cylinder; 62, fixed cylinder; 63, dynamic adjustment component; 631, limit track; 632, active shaft; 633, transmission plate; 634, synchronization plate; 635, slip ring; 636, movable part; 636a, fixed shaft; 636b, movable shaft; 636c, fixed ring; 636d, tension spring; 636e, fixed plate; 637, sleeve ring; 638 , connecting rod; 64, camera fill light integrated assembly; 641, mounting frame; 642, ring array fill light; 643, camera; 644, connecting tube; 645, casing; 646, reflector; 647, adjusting member; 647a, inner ring; 647b, driven gear; 647c, screw rod; 647d, support plate; 647e, movable frame; 7, output shaft; 8, driving gear; 9, semicircular gear; 10, connecting seat; 11, driving gear; 12, connecting block; 13, connecting rod; 14, moving block; 15, electric cylinder. DETAILED DESCRIPTION

[0041] 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.

[0042] Example 1

[0043] See also Figure 1-5, an integrated device for intelligent office facial recognition access control and attendance based on the Internet of Things, comprising a supporting column 1, a recognition control structure 2 is bolted to the top of the supporting column 1, a display module 3 is arranged at the top of the recognition control structure 2, and a card reading module 4 and a fingerprint recognition module 5 are respectively arranged on both sides of the bottom of the recognition control structure 2, and a multi-dimensional image acquisition structure 6 is bolted to the front side of the recognition control structure 2;

[0044] The multi-dimensional image acquisition structure 6 includes a mounting tube 61, a fixed tube 62 is bolted to the front side of the mounting tube 61, and a dynamic adjustment component 63 is arranged inside the fixed tube 62, and a camera fill light integrated component 64 is bolted to the front side of the dynamic adjustment component 63. By setting the dynamic adjustment component 63, the position and angle of the camera fill light integrated component 64 can be flexibly adjusted to comprehensively collect features of various parts of the face, and obtain rich multi-dimensional facial feature information, which greatly improves recognition accuracy, effectively avoids misrecognition caused by similar facial planar features, and significantly improves the accuracy and security of the access control system.

[0045] The dynamic adjustment component 63 includes a limiting track 631, which is arranged inside the fixed cylinder 62. The fixed cylinder 62 is rotatably connected with a driving shaft 632 inside, and a transmission plate 633 is bolted to one side of the driving shaft 632. A synchronization plate 634 is movably arranged on the front side of the transmission plate 633. A slip ring 635 is bolted to one side of the synchronization plate 634, and the slide rod is sleeved on the surface of the limiting track 631. A movable part 636 is rotatably arranged on the front side of the driving shaft 632, and the surface of the movable part 636 is connected to the inner wall of the fixed cylinder 62. The front side of the movable part 636 is connected to the camera fill light integrated component 64. A ring 637 is rotatably sleeved on the surface of the movable part 636, and a connecting rod 638 is rotatably arranged on one side of the ring 637. The connecting rod 63 The other side of 8 is connected to the synchronization plate 634. By setting a dynamic adjustment component 63, when the active shaft 632 rotates, the transmission plate 633 is driven to rotate. The transmission plate 633 drives the slip ring 635 to slide on the limit track 631 through the movably connected synchronization plate 634. When the slip ring 635 moves to the protrusions at the four corners of the limit track 631, it will correspondingly pull the movable part 636 through the connecting rod 638 and the ring 637, so that the position of the camera fill light integrated component 64 is adjusted. Therefore, the feature information of the front face and other facial positions is collected through the camera fill light integrated component 64, which makes up for the deficiency of only being able to obtain the front face plane features in the prior art, greatly improves the comprehensiveness of facial feature collection, and thus improves the recognition precision and accuracy.

[0046] The movable part 636 includes a fixed shaft 636a, which is rotatably connected to the driving shaft 632. The front side of the fixed shaft 636a is rotatably connected to the movable shaft 636b, and the movable shaft 636b is connected to the camera fill light integrated component 64. The surface of the movable shaft 636b is sleeved with a fixed ring 636c, and the surface of the fixed ring 636c is annularly provided with a tension spring 636d, and the other side of the tension spring 636d is provided with a fixed plate 636e, and the side of the fixed plate 636e close to the inner wall of the fixed cylinder 62 is connected to it. By setting the movable part 636, when the slip ring 635 moves to the protrusions at the four corners of the limiting track 631, the movable shaft 636b will be pulled through the connecting rod 638 and the sleeve ring 637. 36b is displaced, so that the connection between the movable shaft 636b and the fixed shaft 636a is used as a fulcrum for position offset, and the tension spring 636d at the corresponding offset position is stretched synchronously, thereby adjusting the position of the camera fill light integrated component 64, so that the camera fill light integrated component 64 can collect facial feature information on both sides, top and bottom of the face, and when the slip ring 635 is between the protrusions of the limiting track 631, the pulling on the movable shaft 636b can be released. At this time, under the action of the tension spring 636d, the camera fill light integrated component 64 can be reset to the front position. Therefore, through multi-dimensional information collection, dynamic adjustment at multiple angles and multiple positions can be performed to meet the image collection requirements of different facial parts.

[0047] Among them, the limiting track 631 is set in a diamond shape as a whole, and the four corners of the limiting track 631 are set in smooth curves. The limiting track 631 with a diamond shape and smooth curves at the four corners can provide a more flexible sliding path for the slip ring 635, so that the movement of the synchronization plate 634 and the camera fill light integrated component 64 is smoother, avoiding jams and collisions during the movement, and improving the accuracy and efficiency of dynamic adjustment. In addition, the four corners of the limiting track 631 can change the moving trajectory of the slip ring 635, so as to adjust the acquisition position of the camera fill light integrated component 64.

[0048] Among them, the rear side of the active shaft 632 extends to the interior of the mounting tube 61 and is rotatably connected thereto, the top of the interior of the mounting tube 61 is rotatably connected to the output shaft 7, and one side of the output shaft 7 is externally connected to a driving device, and the surfaces of the active shaft 632 and the output shaft 7 are respectively sleeved with a driving gear 8 and a semicircular gear 9, and the driving gear 8 is meshed with the semicircular gear 9. By setting the meshing of the driving gear 8 and the semicircular gear 9, the power transmission of the output shaft 7 to the active shaft 632 is realized, providing a reliable power source for the dynamic adjustment component 63, and through the setting of the semicircular gear 9, the structure such as the slip ring 635 can be made intermittent, so that the camera fill light integrated component 64 can stay at a certain position to ensure the accuracy of feature information collection.

[0049] The working principle of this embodiment is as follows: the output shaft 7 is driven to rotate by an external driving device, and the semicircular gear 9 on the output shaft 7 rotates accordingly, meshing with the driving gear 8 on the driving shaft 632, thereby driving the driving shaft 632 to rotate, and the transmission plate 633 bolted to one side of the driving shaft 632 rotates together with the driving shaft 632, and the synchronous plate 634 movably arranged on the front side of the transmission plate 633 moves under the drive of the transmission plate 633, and the slip ring 635 bolted to one side of the synchronous plate 634 is sleeved on the limit track 6 31 surface, with the movement of the synchronous plate 634, the slip ring 635 slides on the limiting track 631, when the slip ring 635 moves to the protrusions at the four corners of the limiting track 631, the sleeve ring 637 is pulled by the connecting rod 638, and the sleeve ring 637 pulls the movable part 636, and the movable part 636 is composed of a fixed shaft 636a, a movable shaft 636b, a fixed ring 636c, a tension spring 636d and a fixed plate 636e. The fixed shaft 636a is rotatably connected to the driving shaft 632, and the movable shaft 636b is connected to the camera fill light integrated component 64, and the pulling of the slip ring 635 causes the movable shaft 636b to shift its position with the connection with the fixed shaft 636a as the fulcrum, and at the same time stretches the tension spring 636d at the corresponding offset position, thereby driving the camera fill light integrated component 64 to adjust its position, so as to collect feature information at different positions such as the two sides, top and bottom of the face. When the slip ring 635 is between the protrusions of the limiting track 631, the pulling force on the movable shaft 636b is released, and under the action of the tension spring 636d, the movable shaft 636b drives the camera fill light integrated component 64 to reset to the front position. In addition, the limiting track 631 with a diamond shape and smooth curves at the four corners provides a flexible sliding path for the slip ring 635, ensures the smooth movement of the synchronization plate 634 and the camera fill light integrated component 64, avoids jamming and collision, and improves the accuracy and efficiency of dynamic adjustment. The moving trajectory of the slip ring 635 can be changed at the four corners to accurately adjust the collection position of the camera fill light integrated component 64.

[0050] Example 2

[0051] refer to Figure 6-8, an integrated device for intelligent office facial recognition access control and attendance based on the Internet of Things also includes a camera fill light integrated component 64, wherein the camera fill light integrated component 64 includes a mounting frame 641, a circular array fill light 642 is rotatably arranged inside the mounting frame 641, and a camera 643 is bolted inside the circular array fill light 642, a connecting tube 644 is bolted to the rear side of the mounting frame 641, and a sleeve 645 is bolted to the rear side of the connecting tube 644, and the sleeve 645 is connected to the movable shaft 636b, and a reflective plate 646 is rotatably connected to the surface of the mounting frame 641 on all sides, and the reflective plate 646 is used in conjunction with the circular array fill light 642, an adjusting member 647 is bolted to the surface of the connecting tube 644, and the rear side of the adjusting member 647 extends to the interior of the sleeve 645, and the sleeve 645 is provided. A camera fill light integrated component 64 is arranged, and a ring array fill light 642 is arranged around the camera 643 to provide lighting for the face in all directions, and the reflector 646 cooperates with the ring array fill light 642 to reflect light so that different parts of the face can be evenly illuminated. The camera 643 is responsible for collecting facial images. When it is necessary to adjust the fill light angle or intensity, the reflector 646 can be adjusted through the adjustment part 647. It can flexibly fill light according to different facial parts and shooting distances, thereby improving the quality of the collected images and providing a guarantee for accurate facial recognition. This intelligent dynamic fill light method effectively avoids overexposure or underexposure of the image, ensures that the collected facial images are clear and accurate, provides a high-quality image foundation for facial recognition, and further improves the recognition accuracy.

[0052] The adjusting member 647 includes an inner gear ring 647a, which is rotatably arranged inside the casing 645, and the inner gear ring 647a is annularly meshed with a driven gear 647b, and a screw rod 647c is bolted to the front side of the driven gear 647b, and the front side of the screw rod 647c extends to the front side of the casing 645 and is rotatably arranged with a support plate 647d, one side of the support plate 647d is bolted to the connecting tube 644, and a movable frame 647e is threadedly connected to the surface of the screw rod 647c, and the other side of the movable frame 647e is rotatably connected to the reflector 646. Dynamic connection, by setting the adjustment part 647, the engagement of the inner ring gear 647a with the driven gear 647b can drive the driven gear 647b and the screw rod 647c to rotate, and the position of the movable frame 647e can be adjusted through the thread cooperation of the screw rod 647c and the movable frame 647e, so as to accurately control the rotation angle of the reflector 646, thereby realizing fine adjustment of the fill light direction and intensity, meeting the fill light requirements of different facial parts and shooting distances, further improving the accuracy and adaptability of the fill light, and improving the quality of image acquisition.

[0053] Among them, the rear side of the reflective plate 646 is bolted with a connecting seat 10, and the movable frame 647e is rotatably connected to the connecting seat 10. The movable frame 647e is rotatably connected to the reflective plate 646 through the connecting seat 10. The setting of the connecting seat 10 makes the connection between the movable frame 647e and the reflective plate 646 more stable and the rotation more flexible, which ensures the control accuracy of the adjusting member 647 on the reflective plate 646, thereby ensuring the stability and reliability of the fill light effect.

[0054] Among them, the inner rotation of the housing 645 is connected with a driving gear 11, and the driving gear 11 is meshed with the inner gear ring 647a. Through the meshing connection between the driving gear 11 and the inner gear ring 647a, when the driving gear 11 rotates, the inner gear ring 647a can be driven to rotate synchronously, thereby achieving the effect of synchronously driving multiple driven gears 647b to rotate.

[0055] Among them, a connecting block 12 is bolted to the rear side of the bottom of the camera 643, and the connecting block 12 is rotatably connected to the inside of the connecting block 12, and the bottom end of the surface of the connecting rod 13 is rotatably connected to the moving block 14, and an electric cylinder 15 is arranged inside the moving block 14, and the other side of the electric cylinder 15 is bolted to the inner wall of the connecting tube 644. When the electric cylinder 15 is extended and retracted, the moving block 14 is pushed to move on the inner wall of the connecting tube 644. The moving block 14 is rotatably connected to the connecting block 12 at the bottom of the camera 643 through the connecting rod 13. Therefore, the movement of the moving block 14 will drive the camera 643 to rotate to a certain angle through the connecting rod 13, further expanding the scope of image acquisition, improving the comprehensiveness of facial feature acquisition, and helping to solve the problem of incomplete facial feature acquisition in the prior art and improving recognition accuracy.

[0056] Working principle of this embodiment: the annular array fill light 642 is arranged around the camera 643 to provide illumination for the face in all directions, and the reflector 646 is rotatably connected to the surface of the mounting frame 641 and cooperates with the annular array fill light 642 to reflect light so that different parts of the face can be evenly illuminated. When the fill light angle or intensity needs to be adjusted, the adjustment member 647 comes into play, and the driving gear 11 rotates and synchronously drives the inner gear ring 647a through the drive motor and other structures connected to the driving gear 11. The inner gear ring 647a is connected to the driven gear 647b in an annular meshing manner, driving the driven gear 647b to rotate, and the screw rod 647c bolted to the front side of the driven gear 647b As it rotates, the movable frame 647e threadedly connected to the surface of the screw rod 647c moves axially along the screw rod 647c under the rotation of the screw rod 647c, and the movable frame 647e is rotatably connected to the reflective plate 646 through the connecting seat 10. The movement of the movable frame 647e drives the reflective plate 646 to rotate, thereby accurately controlling the rotation angle of the reflective plate 646, and achieving fine adjustment of the fill light direction and intensity to meet the fill light requirements of different facial parts and shooting distances. At the same time, when the electric cylinder 15 is extended and retracted, it pushes the moving block 14 to move on the inner wall of the connecting tube 644, and the moving block 14 drives the camera 643 to rotate a certain angle through the connecting rod 13, further expanding the range of image acquisition.

[0057] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to the present embodiment as needed. Although the embodiments of the present invention have been shown and described, it is understandable to those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated device for intelligent office facial recognition access control and attendance based on the Internet of Things, comprising a support column (1), characterized in that: The top of the support column (1) is bolted with an identification control structure (2), the top of the identification control structure (2) is provided with a display module (3), and the bottom of the identification control structure (2) is provided with a card reading module (4) and a fingerprint identification module (5) on both sides, and the front side of the identification control structure (2) is bolted with a multi-dimensional image acquisition structure (6); The multi-dimensional image acquisition structure (6) comprises a mounting tube (61), the front side of which is bolted to a fixing tube (62), a dynamic adjustment component (63) is arranged inside the fixing tube (62), and the front side of the dynamic adjustment component (63) is bolted to a camera fill light integrated component (64).

2. According to the IoT-based smart office facial recognition access control and attendance integrated device according to claim 1, it is characterized by: The dynamic adjustment component (63) comprises a limiting track (631), wherein the limiting track (631) is arranged inside the fixed cylinder (62), wherein the inside of the fixed cylinder (62) is rotatably connected with a driving shaft (632), and a transmission plate (633) is bolted to one side of the driving shaft (632), a synchronization plate (634) is movably arranged on the front side of the transmission plate (633), a slip ring (635) is bolted to one side of the synchronization plate (634), and a slide rod is sleeved on the limiting track (631). ), a movable part (636) is rotatably provided on the front side of the driving shaft (632), and the surface of the movable part (636) is connected to the inner wall of the fixed cylinder (62), the front side of the movable part (636) is connected to the camera fill light integrated component (64), a sleeve ring (637) is rotatably sleeved on the surface of the movable part (636), and a connecting rod (638) is rotatably provided on one side of the sleeve ring (637), and the other side of the connecting rod (638) is connected to the synchronization plate (634).

3. According to the IoT-based smart office facial recognition access control and attendance integrated device of claim 2, it is characterized by: The movable part (636) comprises a fixed shaft (636a), the fixed shaft (636a) is rotatably connected to the driving shaft (632), the front side of the fixed shaft (636a) is rotatably connected to a movable shaft (636b), and the movable shaft (636b) is connected to the camera fill light integrated component (64), the surface of the movable shaft (636b) is sleeved with a fixed ring (636c), and the surface of the fixed ring (636c) is provided with a tension spring (636d) in a ring shape, and a fixed plate (636e) is provided on the other side of the tension spring (636d), and the fixed plate (636e) is connected to the fixed tube (62) at a side close to the inner wall of the fixed tube (62).

4. According to the IoT-based smart office facial recognition access control and attendance integrated device of claim 2, it is characterized by: The limiting track (631) is arranged in a diamond shape as a whole, and the four corners of the limiting track (631) are arranged in smooth curves.

5. According to the IoT-based smart office facial recognition access control and attendance integrated device of claim 2, it is characterized by: The rear side of the driving shaft (632) extends to the interior of the mounting cylinder (61) and is rotatably connected thereto; the top of the interior of the mounting cylinder (61) is rotatably connected to an output shaft (7), and one side of the output shaft (7) is externally connected to a driving device; the surfaces of the driving shaft (632) and the output shaft (7) are respectively sleeved with a driving gear (8) and a semicircular gear (9), and the driving gear (8) is meshed with the semicircular gear (9).

6. According to the IoT-based smart office facial recognition access control and attendance integrated device of claim 3, it is characterized by: The camera fill light integrated component (64) comprises a mounting frame (641), a circular array fill light (642) is rotatably arranged inside the mounting frame (641), and a camera (643) is bolted inside the circular array fill light (642), a connecting tube (644) is bolted to the rear side of the mounting frame (641), and a casing (645) is bolted to the rear side of the connecting tube (644), and the casing (645) is connected to a movable shaft (636b), a reflective plate (646) is rotatably connected to the surface of the mounting frame (641) on all four sides, and the reflective plate (646) is used in conjunction with the circular array fill light (642), an adjusting member (647) is bolted to the surface of the connecting tube (644), and the rear side of the adjusting member (647) extends to the interior of the casing (645).

7. According to claim 6, a smart office facial recognition access control and attendance integrated device based on the Internet of Things, characterized in that: The adjusting member (647) includes an inner gear ring (647a), which is rotatably arranged inside the casing (645), and the inner part of the inner gear ring (647a) is annularly meshed with a driven gear (647b), and the front side of the driven gear (647b) is bolted with a screw rod (647c), the front side of the screw rod (647c) extends to the front side of the casing (645) and is rotatably arranged with a support plate (647d), one side of the support plate (647d) is bolted to the connecting tube (644), the surface of the screw rod (647c) is threadedly connected to a movable frame (647e), and the other side of the movable frame (647e) is rotatably connected to the reflective plate (646).

8. According to claim 7, a smart office facial recognition access control and attendance integrated device based on the Internet of Things is characterized by: The rear side of the reflective plate (646) is bolted with a connecting seat (10), the movable frame (647e) is rotatably connected to the connecting seat (10), and the movable frame (647e) is rotatably connected to the reflective plate (646) via the connecting seat (10).

9. According to claim 7, a smart office facial recognition access control and attendance integrated device based on the Internet of Things is characterized by: The interior of the sleeve (645) is rotatably connected to a driving gear (11), and the driving gear (11) is meshed with the inner gear ring (647a).

10. The integrated device for intelligent office facial recognition access control and attendance based on the Internet of Things according to claim 6, characterized in that: A connecting block (12) is bolted to the rear side of the bottom of the camera (643), and a connecting rod (13) is rotatably connected inside the connecting block (12). A moving block (14) is rotatably connected to the bottom end of the surface of the connecting rod (13), and an electric cylinder (15) is arranged inside the moving block (14), and the other side of the electric cylinder (15) is bolted to the inner wall of the connecting tube (644).

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