Face recognition punch-card machine for construction site
The retractable camera mechanism in the face recognition device addresses the issues of dust accumulation and physical damage by automating camera protection, reducing maintenance and operational costs in harsh environments.
Patent Information
- Application Number
- CN202422185312.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-05
AI Technical Summary
In complex environments such as construction sites, the camera of the facial recognition punch-in machine is prone to accumulation of dust and physical damage, resulting in recognition failure or equipment damage, and the maintenance cost is high.
A face recognition punch-in machine is designed. The camera can be slidably set in the shell, moved to the outside of the punch-in window when used, and retracted when not in use. Combined with the eight-character driving rod and motor drive, the camera can be automatically moved out, paused and retracted, avoiding dust accumulation and physical damage.
It realizes automatic protection of the camera, reduces dust accumulation and physical damage, reduces maintenance and manual cleaning costs, and improves the service life and identification accuracy of the equipment.
Smart Images
Figure CN223108379U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of face recognition, and particularly relates to a face recognition clock-in machine. Background Technique
[0002] The clock-in machine mainly captures face or fingerprint information through a camera for identity verification, and the application of face recognition further improves the intelligence and convenience of clock-in. The cameras of common clock-in machines are integrally arranged below the screen and directly exposed outside, which is convenient for clearly photographing the face. However, in some specific usage scenarios, such as construction sites, the environment of construction sites is complex and changeable. Particulate matters such as dust and building material debris generated during the construction process are very easy to adhere to the surface of the clock-in machine. Long-term accumulation will cause the camera's field of view to be covered and face recognition can no longer be carried out, and additional wiping work is required; at the same time, the spatial layout on construction sites is relatively complex, with many hard objects such as buildings and scaffolding. The externally placed camera of the clock-in machine is easily damaged physically by collision, extrusion, etc., resulting in damage to its shell, camera, and breakage of internal circuits, etc. The maintenance cost and usage cost are both relatively high. Content of the Utility Model
[0003] The purpose of the utility model is to provide a face recognition clock-in machine for construction sites to solve the problems raised in the above background technique.
[0004] To achieve the above purpose, the utility model provides the following technical solution: A face recognition clock-in machine for construction sites includes a first housing and a second housing. A clock-in window is opened on the front side of the second housing. A chassis is provided inside the first housing. A guide rail is opened on the top of the chassis. A guide plate is slidably provided on the guide rail. A camera is installed on the front side of the guide plate. An eight-shaped driving rod is rotatably provided on the left side of the chassis. An eight-shaped groove is provided through the eight-shaped driving rod. A connecting rod is hinged between the upper end of the eight-shaped driving rod and the bottom of the guide plate.
[0005] Preferably, a wheel disc is rotatably provided on the left side of the chassis, and a guide post is provided at the edge of the wheel disc. The guide post is located in the eight-shaped groove.
[0006] Preferably, the eight-shaped groove has a rounded corner, and the rounded corner is equal to a part of the outer diameter of the wheel disc.
[0007] Preferably, a guide groove is opened through the top of the chassis, and the guide groove is located below the guide plate.
[0008] Preferably, a motor is installed on the right side inside the first housing through a mounting bracket, and the output shaft of the motor passes through the chassis and is connected to the wheel disc.
[0009] Preferably, the camera is installed on the front side of the guide plate through a clamping member. The clamping member includes a mounting circular groove and a plurality of rubber blocks. The mounting circular groove is opened on the front side of the guide plate, and the plurality of rubber blocks are arranged on the top inner wall of the mounting circular groove.
[0010] Preferably, the shooting angle of the camera is a 40° horizontal view angle.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: By sliding the camera in the second housing, when in use, the camera moves to the punching window, and when not in use, it retracts into the housing. The housing provides good protection for the camera, avoiding damage to the camera caused by hard object impacts. At the same time, the camera only approaches the punching window when in use, which can prevent external dust accumulation and ensure the good shooting function and face recognition assistance function of the camera. The present utility model also drives the camera to automatically move out and in by setting a rotating eight-shaped driving rod with an eight-shaped groove inside. While cooperating with face recognition, after the eight-shaped groove pushes the camera close to the punching window, it can pause for about 3 seconds to achieve more accurate capture and recognition of the face. In summary, the present utility model can realize a reciprocating action of the camera moving out once, remaining stationary for 3 seconds, and then retracting. On the basis of meeting the face recognition punching of each worker, it realizes the automatic protection of the camera, prevents the camera from being accumulated with dust, eliminates the need for excessive cleaning work, reduces labor costs and loss costs, and ensures the service life of the punching machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0013] Figure 2 is a first partial three-dimensional structural schematic diagram of the present utility model;
[0014] Figure 3 is a second partial three-dimensional structural schematic diagram of the present utility model;
[0015] Figure 4 is a three-dimensional structural schematic diagram of the chassis and the above components of the present utility model;
[0016] Figure 5 is a three-dimensional structural schematic diagram of the guide plate and the camera of the present utility model.
[0017] Reference numerals in the figures: 1 - first housing, 2 - second housing, 3 - punching window, 4 - chassis, 5 - guide rail, 6 - guide plate, 7 - camera, 8 - eight-shaped driving rod, 9 - eight-shaped groove, 10 - connecting rod, 11 - wheel disc, 12 - guide post, 13 - rounded corner, 14 - guide groove, 15 - mounting bracket, 16 - motor, 17 - clamping member, 18 - mounting circular groove, 19 - rubber block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0019] Embodiment 1
[0020] As Figures 1 to 5 shown, a face recognition card punching machine for a construction site includes a first housing 1 and a second housing 2. A card punching window 3 is opened on the front side of the second housing 2. A chassis 4 is provided inside the first housing 1. A guide rail 5 is opened on the top of the chassis 4. A guide plate 6 is slidably provided on the guide rail 5. A camera 7 is installed on the front side of the guide plate 6. An eight-shaped driving rod 8 is rotatably provided on the left side of the chassis 4. An eight-shaped groove 9 is provided through the eight-shaped driving rod 8. A connecting rod 10 is hinged between the upper end of the eight-shaped driving rod 8 and the bottom of the guide plate 6. A disk 11 is rotatably provided on the left side of the chassis 4. A guide post 12 is provided at the edge of the disk 11. The guide post 12 is located in the eight-shaped groove 9. The eight-shaped groove 9 has a rounded corner 13, and the rounded corner 13 is equal to a part of the outer diameter of the disk 11. A guide slot 14 is provided through the top of the chassis 4, and the guide slot 14 is located below the guide plate 6. A motor 16 is installed on the right side inside the first housing 1 through a mounting bracket 15. The output shaft of the motor 16 passes through the chassis 4 and is connected to the disk 11. The camera 7 is installed on the front side of the guide plate 6 through a clamping member 17. The clamping member 17 includes a mounting circular groove 18 and a plurality of rubber blocks 19. The mounting circular groove 18 is opened on the front side of the guide plate 6, and the plurality of rubber blocks 19 are provided on the inner wall top of the mounting circular groove 18. The shooting angle of the camera 7 is 40° horizontal view angle.
[0021] The utility model slides the camera 7 in the second housing 2. During use, the camera 7 is moved to the punching window 3, and when not in use, it is retracted into the housing. The housing plays a good protective role for the camera 7, avoiding damage to the camera 7 caused by hard object impact. At the same time, the camera 7 will only approach the punching window 3 during use, which can avoid the accumulation of external dust, ensuring the good shooting function and face recognition assistance function of the camera 7. The utility model also drives the automatic movement in and out of the camera 7 by setting a rotating eight-shaped driving rod 8 with an eight-shaped groove 9 inside. While cooperating with face recognition, after the eight-shaped groove 9 pushes the camera 7 close to the punching window 3, it can pause for about 3 seconds to achieve more accurate capture and recognition of the face. In summary, the utility model can realize the reciprocating movement of the camera 7 moving out once, staying stationary for 3 seconds, and then retracting. On the basis of meeting the face recognition punching of each worker, it realizes the automatic protection of the camera 7, protects the camera 7 from dust accumulation, does not require too much cleaning work, reduces labor costs and loss costs, and ensures the service life of the punching machine.
[0022] Embodiment 2
[0023] As Figures 1 to 5 A face recognition punching machine for construction sites as shown includes a first housing 1 and a second housing 2. The first housing 1 is used to contact the ground or a placeable platform. The first housing 1 extends upward to be provided with the second housing 2. The second housing 2 is used to install the camera 7 and a face recognition system (not shown in the figure). Different from common face recognition devices, in this embodiment, the camera 7 is set as a device independent of the face recognition device. It can be understood that the core of face recognition technology lies in detecting, feature extracting, and matching the face in a face image or video, and these processes can be achieved by a variety of devices. In some common application scenarios, the face recognition device will directly integrate the camera 7 without external connection, and such a camera 7 will be directly exposed on the screen surface. In some specific application scenarios, such as industrial land, the display screen, the camera 7, etc. are directly exposed on the outer surface, which is very easy to accumulate dust, affecting normal recognition, and it is necessary to clean and keep the surface clean at all times, and thus the corresponding labor costs need to be increased.
[0024] Taking into account the above factors, in this embodiment, a chassis 4 is provided at the bottom of the inner wall of the first housing 1. The chassis 4 has an arbitrary hollow design with a top plate. A guide rail 5 is recessed at the top of the chassis 4. The guide rail 5 here is recessed and runs through from front to back, that is, the guide plate 6 slidably arranged on the guide rail 5 can move back and forth; when a camera 7 is installed on the front side of the guide plate 6, when face recognition for punching is required, the guide plate 6 and the above camera 7 can be pushed forward. At the same time, a punching window 3 is opened on the front side of the second housing 2, and the punching window 3 is located directly in front of the camera 7. In this way, when the camera 7 moves forward, it can take pictures and collect information of external personnel through the punching window 3. Specifically: The employee who needs to punch stands in front of the punching window 3. The guide plate 6 receives a signal and moves forward, thereby driving the camera 7 to move forward to take pictures of it. After the information is matched, the result is displayed on the screen to complete the punching. After punching, the guide plate 6 moves backward and retracts into the first housing 1. In this way, it can be avoided that the camera 7 is exposed outside for a long time, resulting in too much dust accumulation that needs to be processed and the situation of ineffective recognition, reducing labor costs and improving the working quality of the punching machine.
[0025] Among them, the swing angle of the camera 7 can be adjusted according to the actual situation. In this embodiment, when it is placed at the same position as the average height of the workers, the camera 7 is at the same horizontal angle as the human face. At this time, the camera 7 should try to keep facing the human face directly to reduce the recognition error caused by the angle deviation; when there is a large difference in the height of the workers, the user can choose to place the punching machine on a higher platform so that the camera can take pictures and recognize the human face at a 15° downward viewing angle, which can avoid the situation that the human face is affected by perspective distortion and cannot be punched.
[0026] Embodiment 3
[0027] As Figures 1 to 5 shown, a face recognition punching machine for construction sites. Considering that there is a certain buffer recognition period for face recognition, after the camera 7 captures a human face, it is best to stay for a period of time to maintain high-definition shooting of the human face for feature extraction. An eight-shaped driving rod 8 is rotatably provided on the left side of the chassis 4, and the rotation point is one of the edge endpoints of the eight-shaped driving rod 8. The eight-shaped driving rod 8 is also provided with an eight-shaped groove 9 in a penetrating manner; at the same time, a turntable is rotatably provided on the left side of the chassis 4, and the turntable is driven by a motor 16 installed on the right side of the first housing 1. That is, the output shaft of the motor 16 passes through the chassis 4 and is connected with a wheel disc 11. A guide post 12 is provided at the edge of the left side of the wheel disc 11, and the guide post 12 is located in the eight-shaped groove 9. That is, after driving the motor 16, the rotation of the output shaft of the motor 16 will drive the wheel disc 11 to rotate, and the guide post 12 at the edge of the turntable also rotates in a circular trajectory.
[0028] In addition, in this embodiment, a guide groove 14 is also formed through the top of the chassis 4. The guide groove 14 is located below the guide plate 6. When a connecting rod 10 is hinged between the upper end of the eight-shaped driving rod 8 and the bottom of the guide plate 6, the guide groove 14 can provide a swinging space for the connecting rod 10. In this way, the rotation of the output shaft of the motor 16 drives the disc 11 to rotate, and then the rotating guide post 12 is used to push the connecting rod 10 to swing. The swinging of the connecting rod 10 can drive the guide plate 6 and the camera 7 to move back and forth between the guide rails 5. When moving forward, the camera 7 is pushed out for face recognition clock-in. After the clock-in is completed, the camera 7 moves backward into the second housing 2 for retraction, protecting the camera 7 and preventing dust accumulation.
[0029] Among them, the eight-shaped groove 9 has a rounded corner 13, and the rounded corner 13 of the eight-shaped groove 9 is parallel to a part of the outer diameter of the disc 11. It can be understood that in the initial state, the connecting rod 10 is in a state close to horizontal, and the guide plate 6 is located at the rearmost end of the guide rail 5; the output shaft of the motor 16 drives the disc 11 to rotate, and the guide post 12 thereon is used to push the eight-shaped groove 9 and the eight-shaped driving rod 8 to swing forward, and then the connecting rod 10 is used to drive the guide plate 6 to slide forward in the guide rail 5 to approach the clock-in window 3. At this time, the guide post 12 moves to the rounded corner 13 in the eight-shaped groove 9. Since its rounded corner 13 is parallel to the outer diameter of the disc 11, at this time, the rotation trajectory of the guide post 12 is the same as the rounded corner 13 of the eight-shaped groove 9, and the two remain relatively stationary, driving the guide plate 6 and the camera 7 to stay at the clock-in window 3 for 3 seconds to accurately capture and identify the human face and complete the clock-in; when the disc 11 continues to rotate and drives the guide post 12 to continue to rotate out of the rounded corner 13 of the eight-shaped groove 9, the guide plate 6 can be pushed to slide backward in the guide rail 5 to reset, completing the retraction and protection of the camera 7.
[0030] Above, when the disc 11 rotates one week, the actions of the camera 7 moving out, staying stationary for 3 seconds, and then retracting can be realized. On the basis of meeting the face recognition clock-in of each worker, the automatic protection of the camera 7 is realized, protecting the camera 7 from dust accumulation, without too much cleaning work, reducing labor costs and loss costs, and ensuring the service life of the clock-in machine.
[0031] In addition, when the camera 7 is not in use, it is retracted into the clock-in machine, which can effectively reduce the occurrence of accidental touch and prevent unauthorized personnel from entering. If the camera 7 is directly exposed outside the screen, it will automatically capture passers-by. In short, overly sensitive face recognition may be misjudged as malicious behavior or abnormal operation, triggering a series of unnecessary subsequent operations or responses, including but not limited to the following situations:
[0032] 1. The system may wrongly prevent the user from accessing certain services or resources, or send unnecessary warning messages to the user;
[0033] 2. The accidental touch behavior may also cause the system to generate incorrect data records or logs, interfering with the normal operation and maintenance of the system, etc.
[0034] Embodiment 4
[0035] According to Embodiment 3, the automated protection operation of the camera 7 drives the camera 7 to move out, stay stationary for 3 seconds, and then retract. The movement in and out of the camera 7 depends on the guide plate 6. In practical applications, the connecting rod 10 connected to the bottom of the guide plate 6 generates an upward force. The multi-directional forces are likely to cause the camera 7 to shake or even tip over during the movement, and it cannot continue to work for the face recognition system.
[0036] Therefore, in this embodiment, an installation circular groove 18 is opened on the front side of the guide plate 6. The diameter of the installation circular groove 18 is slightly larger than the base of the camera 7. Therefore, the camera 7 can be directly inserted into the installation circular groove 18 under the condition of resistance for installation. When there are 4 rubber blocks 19 at the top of the inner wall of the installation circular groove 18, the inner diameter formed by the rubber blocks 19 is smaller than the base of the camera 7. Also, since there are certain gaps between the rubber blocks 19 and they are made of flexible materials, the user can tilt one side of the base of the camera 7 under the rubber blocks 19 and then screw the entire base into the rubber blocks 19. In this way, the rubber blocks 19 can be used to limit the base of the camera 7, and further limit the camera 7. During the movement, the rubber blocks 19 can also drive the camera 7 to be stably installed in the installation circular groove 18 by relying on the friction force between itself and the camera 7, cooperating with the high-efficiency face recognition.
[0037] And the setting of the installation circular groove 18 also makes the installation of the camera 7 convenient, and the replacement of the camera 7 can be easily achieved. Compared with the integrated camera 7 and the camera 7 fixed by bolts, the maintenance will be simpler.
[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.
[0039] The above is only used to illustrate the technical solution of the present utility model rather than to limit it. Any other modifications or equivalent substitutions made by those of ordinary skill in the art to the technical solution of the present utility model shall be covered within the scope of the claims of the present utility model as long as they do not depart from the spirit and scope of the technical solution of the present utility model.
Claims
1. A face recognition card punching machine for construction sites, comprising a first housing (1) and a second housing (2), and a card punching window (3) is opened on the front side of the second housing (2), characterized in that, A chassis (4) is provided inside the first housing (1). A guide rail (5) is formed at the top of the chassis (4). A guide plate (6) is slidably arranged on the guide rail (5). A camera (7) is installed on the front side of the guide plate (6). An eight-shaped driving rod (8) is rotatably arranged on the left side of the chassis (4). An eight-shaped groove (9) is formed through the eight-shaped driving rod (8). A connecting rod (10) is hingedly connected between the upper end of the eight-shaped driving rod (8) and the bottom of the guide plate (6).
2. The face recognition clock-in machine for construction sites according to claim 1, wherein A wheel disc (11) is rotatably arranged on the left side of the chassis (4). A guide post (12) is arranged at the edge of the wheel disc (11). The guide post (12) is located inside the eight-shaped groove (9). A motor (16) is installed on the right side inside the first housing (1) through a mounting bracket (15). The output shaft of the motor (16) passes through the chassis (4) and is connected to the wheel disc (11).
3. The face recognition card punching machine for construction sites according to claim 2, wherein, The eight-shaped groove (9) has a rounded corner (13), and the rounded corner (13) is equal to a part of the outer diameter of the wheel disc (11).
4. The face recognition clock-in machine for construction sites according to claim 1, characterized in that, A guide groove (14) is formed through the top of the chassis (4), and the guide groove (14) is located below the guide plate (6).
5. The face recognition card punching machine for construction sites according to claim 1, characterized in that, The camera (7) is installed on the front side of the guide plate (6) through a clamping member (17). The clamping member (17) includes a mounting circular groove (18) and a plurality of rubber blocks (19). The mounting circular groove (18) is formed on the front side of the guide plate (6), and the plurality of rubber blocks (19) are arranged on the inner wall top of the mounting circular groove (18).
6. The face recognition card punching machine for construction site according to claim 1, wherein The shooting angle of the camera (7) is a 40° horizontal view angle.