Attendance checking device and method based on face recognition

Abstract

The invention discloses attendance checking equipment and method based on face recognition, and relates to the technical field of attendance checking equipment.The attendance checking equipment comprises a gate and an attendance checking machine, a stepping motor is fixedly installed on the inner side face of the gate, a camera is fixedly installed on the outer surface of a transmission line, and a height adjusting mechanism is arranged between the stepping motor and the camera; a supporting plate is movably installed on the inner side face of the base, and a protection mechanism is arranged between the lifting column and the supporting plate. A protection box is fixedly installed at the top end of the base, and a cleaning mechanism is arranged between the protection box and the camera. According to the attendance checking device and method based on face recognition, a servo motor works to drive a rotating shaft to rotate, the rotating shaft drives a belt to drive a guide rod to rotate, and the guide rod drives a first gear to rotate, so that the first gear and a second gear perform gear meshing motion, the second gear drives a screw to rotate, and the screw drives a connecting block to drive a cleaning brush to ascend and descend; therefore, the surface of the attendance machine is cleaned, and the definition of the attendance machine is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of attendance equipment, and in particular to an attendance equipment and method based on face recognition. Background Art

[0002] Face recognition is a biometric recognition technology in the development of digital information. It collects images or video streams containing faces through cameras and automatically detects and tracks faces in images. With the development of technology, the emergence of attendance equipment with face recognition function has provided great convenience for personnel in attendance.

[0003] However, the existing attendance equipment is difficult to assist users of different heights to perform attendance operations when in use, thus causing certain inconveniences to users of different heights when in use.

[0004] In order to solve the above-mentioned defects, in the prior art, a Chinese patent with publication number CN217085796U discloses an attendance device based on face recognition, which provides a first foot pedal and a second foot pedal. When in use, the first foot pedal needs to be moved so that one side of the first foot pedal enters the interior of the plug-in support groove. After that, the person only needs to stand in the standing circle on the first foot pedal to perform face recognition punching. When the height is not convenient for shorter people to perform face recognition, it is only necessary to pull the second foot pedal so that one side of the second foot pedal enters the interior of the plug-in support groove. Finally, the person only needs to stand in the standing circle on the second foot pedal to perform face recognition punching. Therefore, when the device is in use, it can assist people of different heights to perform attendance punching, thereby improving the convenience of users of different heights when using it.

[0005] In the prior art, a Chinese patent with publication number CN218413528U discloses an attendance device based on face recognition. Through the self-locking mechanism, the support column is pulled upward, and the rack is driven to move upward synchronously. Since the rack is meshed with the second gear, the second gear is driven to rotate, so that the turbine and the rotating rod are synchronously rotated inside the receiving groove. Since the turbine is meshed with the worm, the worm is rotated inside the receiving groove. At this time, the support column is released. Since the turbine and the worm are self-locking, it is beneficial for the face machine to maintain the adjusted position, and it is convenient for the user to adjust the height of the support column at any time. Through the limit mechanism, before adjusting the height of the support column, the moving rod is pulled in the direction of the reset spring to drive the connecting rod to move synchronously, so that the insertion rod rotates around the rotating shaft, so that the end of the insertion rod away from the connecting rod is separated from the limit hole. After the height of the support column is adjusted, the moving rod is released. Under the extrusion of the reset spring, the end of the insertion rod away from the connecting rod is inserted into the inside of the next limit hole, which is convenient for further keeping the support column at the current height, and avoiding the user from accidentally touching the second face machine to cause the height of the support column to change.

[0006] During use, the above-mentioned device utilizes the turbine and the rotating rod to rotate and drive the support column to move, so as to facilitate the adjustment of the height of the attendance equipment. However, in the above-mentioned device, the rotation of the turbine and the rotating rod only drives the support column to move. The attendance equipment will generate a lot of dust when used for a long time, which will cause errors in attendance interface recognition. Therefore, in actual use, the attendance equipment will generate a lot of dust when used for a long time, which will cause errors in attendance interface recognition. Summary of the invention

[0007] The purpose of the present invention is to provide an attendance device and method based on face recognition, so as to solve the problem in the above background technology that the attendance device will generate a lot of dust after long-term use, resulting in errors in attendance interface recognition.

[0008] To achieve the above object, the present invention provides the following technical solution: an attendance device based on face recognition, comprising a gate machine and an attendance machine, A stepper motor is fixedly mounted on the inner side of the gate, an infrared sensor is fixedly mounted on the top of the gate, a transmission line is fixedly mounted on the outer surface of the infrared sensor, a camera is fixedly mounted on the outer surface of the transmission line, and a height adjustment mechanism is provided between the stepper motor and the camera; A lifting column is movably mounted on the inner side of the gate, a base is fixedly mounted on the bottom of the attendance machine, a support plate is movably mounted on the inner side of the base, and a protection mechanism is provided between the lifting column and the support plate; A camera is fixedly installed on the top of the attendance machine, a protection box is fixedly installed on the top of the base, and a cleaning mechanism is arranged between the protection box and the camera.

[0009] Furthermore, an output shaft is rotatably mounted on the inner side of the stepper motor, a screw is rotatably mounted on the outer surface of the output shaft, the height adjustment mechanism includes a screw, a lifting column is threadedly mounted on the outer surface of the screw, and the screw and the lifting column form a lifting structure.

[0010] Furthermore, a connecting wire is fixedly installed on the outer surface of the stepper motor, an infrared sensor is fixedly installed on the outer surface of the connecting wire, and the connecting wire is movably installed on the inner end of the gate.

[0011] Furthermore, a water tank is fixedly installed on the top of the protection box, a water pump is fixedly installed on the outer surface of the water tank, a transmission hose is fixedly installed on the top of the water pump, and the transmission hose is movably installed on the inner end of the attendance machine.

[0012] Furthermore, a connecting pipe is fixedly installed on the outer surface of the transmission hose, a nozzle is fixedly installed on the outer surface of the connecting pipe, and the connecting pipe is fixedly installed on the inner end of the attendance machine, and the connecting pipe and the nozzle form an integrated structure.

[0013] Furthermore, a buffer spring is fixedly installed on the bottom surface of the support plate, and the buffer spring is fixedly installed on the inner end of the base. A fixed seat is fixedly installed on the bottom surface of the support plate, and the protection mechanism includes a fixed seat, and a connecting rod is fixedly installed on the inner side surface of the fixed seat, a driving rod is movably installed on the outer surface of the connecting rod, and a fixing rod is fixedly installed on the inner side surface of the driving rod.

[0014] Furthermore, sliding blocks are fixedly installed on both sides of the fixed rod, and a return spring is fixedly installed on the outer surface of the sliding block. The sliding block and the return spring form a telescopic structure, and the return spring is fixedly installed on the inner end of the base, and a positioning rod is movably installed on the inner side surface of the sliding block. The sliding block and the positioning rod form a sliding structure.

[0015] Furthermore, a servo motor is fixedly mounted on the inner side of the protective box, a rotating shaft is rotatably mounted on the outer surface of the servo motor, a belt is rotatably mounted on the outer surface of the rotating shaft, a guide rod is rotatably mounted on the inner side of the belt, and the belt and the belts form a rotating structure.

[0016] Furthermore, a gear 1 is fixedly mounted on the outer surface of the guide rod, a gear 2 is rotatably mounted on the outer surface of the gear 1, a screw is fixedly mounted on the inner side surface of the gear 2, the gear 1 and the gear 2 form a gear meshing structure, and a connecting block is threadedly mounted on the inner side surface of the screw, the cleaning mechanism includes a connecting block, a cleaning brush is fixedly mounted on the outer surface of the connecting block, and the screw and the connecting block form a lifting structure.

[0017] Furthermore, an attendance method of an attendance device based on face recognition includes the following steps: S1: firstly, the output shaft drives the spiral member to rotate, the spiral member drives the lifting column to rise and fall, the lifting column drives the base to rise and fall, and the base drives the attendance machine to rise and fall, so as to facilitate the adjustment of the height of the attendance machine and facilitate the attendance punching of personnel at different heights; S2: By scanning personnel through infrared sensors, the attendance machine automatically displays the clock-in interface, which is convenient for personnel to clock in, and real-time monitoring of personnel on attendance is carried out through cameras, which is convenient for personnel to operate remotely.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The attendance device and method based on face recognition are as follows: 1. By starting the stepper motor, the stepper motor drives the output shaft to rotate, the output shaft drives the screw to rotate, the screw drives the lifting column to rise and fall, the lifting column drives the base to rise and fall, and the base drives the attendance machine to rise and fall, so as to facilitate the height adjustment of the attendance machine and facilitate the attendance of people at different heights; Furthermore, the water in the water tank is transferred to the transfer hose through the water pump, and then transferred to the connecting pipe through the transfer hose, and then sprayed out through the nozzle, so as to clean the surface of the attendance machine, and prevent dust accumulation from causing attendance recognition failure, thereby affecting the punching of personnel; Furthermore, the attendance personnel are scanned by an infrared sensor, so that the attendance machine can automatically display the clock-in interface, and the attendance personnel are monitored in real time by a camera, which is convenient for remote operation by personnel, thereby improving the efficiency of attendance.

[0019] 2. By starting the servo motor, the servo motor drives the rotating shaft to rotate, the rotating shaft drives the belt to rotate, the belt drives the guide rod to rotate, the guide rod drives gear 1 to rotate, so that gear 1 and gear 2 perform gear meshing movement, gear 2 drives the screw to rotate, the screw drives the connecting block to rise and fall, the connecting block drives the cleaning brush to rise and fall, so as to clean the surface of the attendance machine to increase the clarity of the attendance machine and facilitate the attendance of personnel; Furthermore, the buffer spring is extended and retracted by pressing the support plate, and the buffer spring relieves the collision force. The fixed seat is driven to move by pressing the support plate, and the fixed seat drives the connecting rod to drive the driving rod to move, the driving rod drives the fixing rod to move, the fixing rod drives the sliding block to move, and the sliding block drives the reset spring to move, thereby relieving the vibration, reducing the damage to the protection box, and improving the safety of the protection box. Furthermore, the water tank is supported by a protective box, and the sliding block is limited by a positioning rod to prevent the sliding block from falling off, thereby increasing the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the gate machine of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the attendance machine of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the protection box of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the lifting column of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the water storage tank of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the cleaning brush of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the screw of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the base of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the positioning rod of the present invention.

[0021] In the figure: 1. gate machine; 2. attendance machine; 3. stepper motor; 4. output shaft; 5. screw; 6. lifting column; 7. base; 8. protection box; 9. water tank; 10. pump; 11. transmission hose; 12. connecting pipe; 13. nozzle; 14. connecting line; 15. infrared sensor; 16. transmission line; 17. camera; 18. support plate; 19. buffer spring; 20. fixed seat; 21. connecting rod; 22. driving rod; 23. fixing rod; 24. sliding block; 25. positioning rod; 26. servo motor; 27. rotating shaft; 28. belt; 29. ​​guide rod; 30. gear one; 31. gear two; 32. screw; 33. connecting block; 34. cleaning brush; 35. reset spring. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1: Please refer to Figure 1 - Fig.10 The present invention provides the following technical solutions: an attendance device based on face recognition, comprising a gate machine 1 and an attendance machine 2, a stepper motor 3 is fixedly installed on the inner side of the gate machine 1, an infrared sensor 15 is fixedly installed on the top of the gate machine 1, a transmission line 16 is fixedly installed on the outer surface of the infrared sensor 15, a camera 17 is fixedly installed on the outer surface of the transmission line 16, and a height adjustment mechanism is arranged between the stepper motor 3 and the camera 17; a lifting column 6 is movably installed on the inner side of the gate machine 1, a base 7 is fixedly installed on the bottom surface of the attendance machine 2, a support plate 18 is movably installed on the inner side of the base 7, and a protection mechanism is arranged between the lifting column 6 and the support plate 18; a camera 17 is fixedly installed on the top of the attendance machine 2, a protective box 8 is fixedly installed on the top of the base 7, and a cleaning mechanism is arranged between the protective box 8 and the camera 17.

[0024] The height adjustment mechanism provided between the stepping motor 3 and the camera 17 facilitates the adjustment of the height of the attendance machine 2, thereby facilitating attendance of personnel of different heights. The protection mechanism provided between the lifting column 6 and the support plate 18 facilitates the protection of the protection box 8 to prevent the protection box 8 from being damaged by collision and causing damage to the internal equipment. The cleaning mechanism provided between the protection box 8 and the camera 17 facilitates the cleaning of the surface of the attendance machine 2, thereby facilitating the device to recognize the identity of the personnel and avoiding dust accumulation on the surface of the attendance machine 2 that causes attendance recognition failure.

[0025] Example 2: Based on Example 1, please refer to Figure 1 - Fig.10 , a nozzle 13 is also disclosed, and its specific structure is as follows: an output shaft 4 is rotatably mounted on the inner side surface of the stepping motor 3, a screw 5 is rotatably mounted on the outer surface of the output shaft 4, a height adjustment mechanism includes a screw 5, a lifting column 6 is threadedly mounted on the outer surface of the screw 5, and the screw 5 and the lifting column 6 form a lifting structure, a connecting wire 14 is fixedly mounted on the outer surface of the stepping motor 3, an infrared sensor 15 is fixedly mounted on the outer surface of the connecting wire 14, and the connecting wire 14 is movably mounted on the inner end of the gate machine 1, a water tank 9 is fixedly mounted on the top of the protective box 8, a water pump 10 is fixedly mounted on the outer surface of the water tank 9, a transmission hose 11 is fixedly mounted on the top of the water pump 10, and the transmission hose 11 The tube 11 is movably installed on the inner end of the attendance machine 2, the outer surface of the transmission hose 11 is fixedly installed with a connecting tube 12, the outer surface of the connecting tube 12 is fixedly installed with a nozzle 13, and the connecting tube 12 is fixedly installed on the inner end of the attendance machine 2, the connecting tube 12 and the nozzle 13 form an integrated structure, the bottom surface of the support plate 18 is fixedly installed with a buffer spring 19, the buffer spring 19 is fixedly installed on the inner end of the base 7, the bottom surface of the support plate 18 is fixedly installed with a fixed seat 20, and the protection mechanism includes the fixed seat 20, and the inner side surface of the fixed seat 20 is fixedly installed with a connecting rod 21, the outer surface of the connecting rod 21 is movably installed with a driving rod 22, and the inner side surface of the driving rod 22 is fixedly installed with a fixing rod 23.

[0026] By starting the stepper motor 3, the stepper motor 3 drives the output shaft 4 to rotate, the output shaft 4 drives the screw 5 to rotate, the screw 5 drives the lifting column 6 to rise and fall, the lifting column 6 drives the base 7 to rise and fall, and the base 7 drives the attendance machine 2 to rise and fall, so that it is convenient to adjust the height of the attendance machine 2, which is convenient for people at different heights to check attendance, and the water in the water storage tank 9 is transferred to the transmission hose 11 by the pump 10, and is transferred to the connecting pipe 12 by the transmission hose 11, and then sprayed out through the nozzle 13, so as to clean the surface of the attendance machine 2 to prevent dust accumulation from causing attendance recognition failure, thereby affecting the punching of personnel, and the infrared sensor 15 is used to scan the personnel who are checking in, so that the attendance machine 2 automatically displays the punching interface, and the camera 17 is used to monitor the personnel who are checking in in real time, which is convenient for the personnel to operate remotely, thereby improving the efficiency of attendance.

[0027] Example 3: Based on Example 1, please refer to Figure 1 - Fig.10, a screw rod 32 is also disclosed, and its specific structure is as follows: sliding blocks 24 are fixedly installed on both sides of the fixed rod 23, and a return spring 35 is fixedly installed on the outer surface of the sliding block 24, the sliding block 24 and the return spring 35 form a telescopic structure, and the return spring 35 is fixedly installed on the inner end of the base 7, and a positioning rod 25 is movably installed on the inner side surface of the sliding block 24, and the sliding block 24 and the positioning rod 25 form a sliding structure, and a servo motor 26 is fixedly installed on the inner side surface of the protective box 8, and a rotating shaft 27 is rotatably installed on the outer surface of the servo motor 26, and a belt 28 is rotatably installed on the outer surface of the rotating shaft 27, and a guide rod 29 is rotatably installed on the inner side surface of the belt 28, and the belt 28 and the belt 28 form a rotating structure, and a gear 1 30 is fixedly installed on the outer surface of the guide rod 29, and a gear 2 31 is rotatably installed on the outer surface of the gear 1 30, and the gear 2 31 is rotatably installed on the outer surface of the gear 1 30. A screw rod 32 is fixedly installed on the inner side of 31, gear one 30 and gear two 31 form a gear meshing structure, and a connecting block 33 is threadedly installed on the inner side of the screw rod 32, the cleaning mechanism includes the connecting block 33, and a cleaning brush 34 is fixedly installed on the outer surface of the connecting block 33, and the screw rod 32 and the connecting block 33 form a lifting structure, including the following steps: S1: first, the output shaft 4 drives the screw member 5 to rotate, the screw member 5 drives the lifting column 6 to lift, the lifting column 6 drives the base 7 to lift, and the base 7 drives the attendance machine 2 to lift, so as to facilitate the adjustment of the height of the attendance machine 2, and facilitate personnel at different heights to clock in for attendance; S2: The personnel are scanned by the infrared sensor 15, so that the attendance machine 2 automatically displays the clock-in interface, which is convenient for the personnel to clock in, and the camera 17 is used to monitor the personnel who are doing the attendance in real time, which is convenient for the personnel to operate remotely.

[0028] By starting the servo motor 26, the servo motor 26 drives the rotating shaft 27 to rotate, the rotating shaft 27 drives the belt 28 to rotate, the belt 28 drives the guide rod 29 to rotate, and the guide rod 29 drives the gear 1 30 to rotate, so that the gear 1 30 and the gear 2 31 perform gear meshing movement, the gear 2 31 drives the screw 32 to rotate, the screw 32 drives the connecting block 33 to rise and fall, and the connecting block 33 drives the cleaning brush 34 to rise and fall, so as to clean the surface of the cleaned attendance machine 2, increase the clarity of the attendance machine 2, and facilitate the attendance of personnel, and use the support plate 18 to press and drive the buffer spring 19 to extend and retract. The buffer spring 19 alleviates the collision force generated, and drives the fixed seat 20 to move by pressing the support plate 18, the fixed seat 20 drives the connecting rod 21 to drive the driving rod 22 to move, the driving rod 22 drives the fixed rod 23 to move, the fixed rod 23 drives the sliding block 24 to move, and the sliding block 24 drives the reset spring 35 to move, thereby alleviating the vibration generated, reducing the damage to the protection box 8, and improving the safety of the protection box 8. The water tank 9 is supported by the protection box 8, and the sliding block 24 is limited by the positioning rod 25 to prevent the sliding block 24 from falling off, thereby increasing the stability of the equipment.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An attendance device based on face recognition, comprising a gate machine (1) and an attendance machine (2), characterized in that: A stepper motor (3) is fixedly mounted on the inner side surface of the gate machine (1), an infrared sensor (15) is fixedly mounted on the top of the gate machine (1), a transmission line (16) is fixedly mounted on the outer surface of the infrared sensor (15), a camera (17) is fixedly mounted on the outer surface of the transmission line (16), and a height adjustment mechanism is provided between the stepper motor (3) and the camera (17); A lifting column (6) is movably mounted on the inner side of the gate machine (1), a base (7) is fixedly mounted on the bottom surface of the attendance machine (2), a support plate (18) is movably mounted on the inner side of the base (7), and a protective mechanism is provided between the lifting column (6) and the support plate (18); A camera (17) is fixedly mounted on the top of the attendance machine (2), a protection box (8) is fixedly mounted on the top of the base (7), and a cleaning mechanism is provided between the protection box (8) and the camera (17).

2. The attendance device based on face recognition according to claim 1, characterized in that: An output shaft (4) is rotatably mounted on the inner side surface of the stepper motor (3), a screw component (5) is rotatably mounted on the outer surface of the output shaft (4), the height adjustment mechanism comprises a screw component (5), a lifting column (6) is threadedly mounted on the outer surface of the screw component (5), and the screw component (5) and the lifting column (6) form a lifting structure.

3. The attendance device based on face recognition according to claim 2, characterized in that: A connecting wire (14) is fixedly mounted on the outer surface of the stepping motor (3), an infrared sensor (15) is fixedly mounted on the outer surface of the connecting wire (14), and the connecting wire (14) is movably mounted on the inner end of the gate (1).

4. The attendance device based on face recognition according to claim 1, characterized in that: A water tank (9) is fixedly mounted on the top of the protection box (8), a water pump (10) is fixedly mounted on the outer surface of the water tank (9), a transmission hose (11) is fixedly mounted on the top of the water pump (10), and the transmission hose (11) is movably mounted on the inner end of the attendance machine (2).

5. The attendance device based on face recognition according to claim 4 is characterized in that: A connecting pipe (12) is fixedly mounted on the outer surface of the transmission hose (11), a nozzle (13) is fixedly mounted on the outer surface of the connecting pipe (12), and the connecting pipe (12) is fixedly mounted on the inner end of the attendance machine (2), and the connecting pipe (12) and the nozzle (13) form an integrated structure.

6. The attendance device based on face recognition according to claim 1, characterized in that: A buffer spring (19) is fixedly mounted on the bottom surface of the support plate (18), the buffer spring (19) is fixedly mounted on the inner end of the base (7), a fixing seat (20) is fixedly mounted on the bottom surface of the support plate (18), and the protection mechanism comprises the fixing seat (20), a connecting rod (21) is fixedly mounted on the inner side surface of the fixing seat (20), a driving rod (22) is movably mounted on the outer surface of the connecting rod (21), and a fixing rod (23) is fixedly mounted on the inner side surface of the driving rod (22).

7. The attendance device based on face recognition according to claim 6, characterized in that: Sliding blocks (24) are fixedly mounted on both sides of the fixed rod (23); a return spring (35) is fixedly mounted on the outer surface of the sliding block (24); the sliding block (24) and the return spring (35) form a telescopic structure; the return spring (35) is fixedly mounted on the inner end of the base (7); a positioning rod (25) is movably mounted on the inner side surface of the sliding block (24); the sliding block (24) and the positioning rod (25) form a sliding structure.

8. The attendance device based on face recognition according to claim 4, characterized in that: A servo motor (26) is fixedly mounted on the inner side surface of the protection box (8), a rotating shaft (27) is rotatably mounted on the outer surface of the servo motor (26), a belt (28) is rotatably mounted on the outer surface of the rotating shaft (27), a guide rod (29) is rotatably mounted on the inner side surface of the belt (28), and the belts (28) and the belts (28) form a rotating structure.

9. The attendance device based on face recognition according to claim 8, characterized in that: A gear 1 (30) is fixedly mounted on the outer surface of the guide rod (29); a gear 2 (31) is rotatably mounted on the outer surface of the gear 1 (30); a screw rod (32) is fixedly mounted on the inner side surface of the gear 2 (31); the gear 1 (30) and the gear 2 (31) form a gear meshing structure; a connecting block (33) is threadedly mounted on the inner side surface of the screw rod (32); the cleaning mechanism comprises a connecting block (33); a cleaning brush (34) is fixedly mounted on the outer surface of the connecting block (33); and the screw rod (32) and the connecting block (33) form a lifting structure.

10. The attendance device based on face recognition according to claim 1, characterized in that: Also disclosed is an attendance method of the attendance device, The following steps are involved: S1: First, the output shaft (4) drives the spiral member (5) to rotate, the spiral member (5) drives the lifting column (6) to rise and fall, the lifting column (6) drives the base (7) to rise and fall, and the base (7) drives the attendance machine (2) to rise and fall, thereby facilitating the adjustment of the height of the attendance machine (2) and facilitating personnel at different heights to clock in and out; S2: Scanning personnel through an infrared sensor (15) makes it easier for the attendance machine (2) to automatically display a punch-in interface, facilitating personnel to punch in, and real-time monitoring of personnel on attendance is performed through a camera (17), facilitating remote operation by personnel.

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