Face recognition device for access control
By introducing mobile camera components and wave recognition algorithms into the access control device, the problem of cameras being unable to adjust and direct sunlight is solved, and automatic adjustment and sun occlusion are realized based on height, improving recognition accuracy and user experience.
Patent Information
- Application Number
- CN202421614379.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-09
AI Technical Summary
Existing facial recognition access control devices cannot automatically adjust the camera based on the height of the person waiting to pass, resulting in inconvenience in recognition. At the same time, direct sunlight cameras during the daytime affect the recognition rate.
An access control device including a base, controller, mobile component and shooting component is designed. By waving the recognition algorithm and mobile camera component, the camera position is automatically adjusted to avoid direct sunlight, providing station prompts, and ensuring recognition accuracy.
It realizes automatic adjustment of the camera according to the height of the person waiting to pass, avoiding direct sunlight, and improving the face recognition rate and user experience.
Smart Images
Figure CN223167125U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of face recognition, and particularly relates to a face recognition device for access control. Background Art
[0002] Generally, the cameras of existing face recognition access control devices are fixed on the turnstiles, and the shooting range of the cameras is limited. The cameras cannot be automatically adjusted according to the height of the person to pass, and can only be set at a certain angle or at a height of an average height. As a result, taller people need to lower their heads or bend down, and shorter people cannot reach it, which is unfriendly to the person to pass. In addition, when face recognition is carried out during the day, the camera may be directly irradiated by sunlight, resulting in the inability to detect the face during shooting and affecting the recognition rate. Therefore, there is an urgent need to design a face recognition device for access control that can adapt to shorter persons to pass and avoid direct sunlight on the camera. Summary of the Utility Model
[0003] In order to solve at least one of the problems mentioned in the above background art, the utility model provides a face recognition device for access control, which can automatically adjust the camera for face recognition for persons to pass with different heights, and can avoid direct sunlight on the camera at the same time, improving the face recognition rate.
[0004] The specific technical solution provided by the utility model is as follows:
[0005] Provide a face recognition device for access control, including a base, a controller, a moving component and a shooting component. The moving component and the shooting component are both connected to the controller. The moving component is arranged on the base and can move up and down on the base. The shooting component can perform wave recognition. The shooting component includes a first shooting piece and a second shooting piece. The first shooting piece is arranged on the moving component. The base includes a shielding part arranged at the upper end of the base. The shielding part inclines towards the moving component side. The second shooting piece is arranged on the side wall of the shielding part facing the moving component.
[0006] As a preference of the above solution, the moving component includes a moving panel and a connecting rod. The first shooting piece is arranged on the moving panel. The moving panel moves up and down on the base through the connecting rod. A driving piece for driving the connecting rod to move up and down is arranged on the base. The driving piece is connected to the controller.
[0007] As a preference of the above solution, a standing position prompting piece is arranged on the moving panel. The standing position prompting piece is used to prompt the person to pass to stand at a designated position for convenient face recognition.
[0008] As a preference of the above solution, the standing position prompting piece is an indicator light, and the irradiation angle of the indicator light is adjustable.
[0009] As a preference of the above solution, a wave recognition algorithm is provided in the controller. The wave recognition includes upward wave gesture recognition and downward wave gesture recognition. The first shooting member can perform downward wave gesture recognition, and the second shooting member can perform upward wave gesture recognition. The controller is arranged on the base or the moving component.
[0010] As a preference of the above solution, if the first shooting member recognizes that someone makes a downward wave gesture, the moving component drives the first shooting member to move upward.
[0011] As a preference of the above solution, if the second shooting member recognizes that someone makes an upward wave gesture, the moving component drives the first shooting member to move downward.
[0012] As a preference of the above solution, the driving member includes a motor screw module, and the connecting rod is arranged on the motor screw module.
[0013] As a preference of the above solution, an infrared sensing member is provided on the moving panel, and the infrared sensing member is used to sense whether someone approaches.
[0014] As a preference of the above solution, a fill light is provided on the moving panel, and the fill light is used for fill light during face recognition.
[0015] As a preference of the above solution, a card swiping area is provided on the moving panel, and the card swiping area is connected to the controller.
[0016] As a preference of the above solution, a display screen is provided on the moving panel, and the display screen is connected to the first shooting member.
[0017] With the above technical solution, when the present utility model is in use, the base is fixed in the access control area, and the face information of the user is inputted in advance through the background and transmitted to the controller for identification; when the person to pass approaches the moving component by a certain distance, the first photographing component captures and identifies the face. If it is a user with a recorded face, the access control triggers the door opening operation; when there is direct sunlight on the first photographing component during the day, when a person approaches the moving component, part of the sunlight will be blocked. By providing a shielding portion inclined towards the moving component at the upper end of the base, the shielding portion can further block the direct sunlight at a certain angle, so as to ensure comprehensive shielding of the sunlight and avoid direct sunlight on the first photographing component, which can effectively improve the face recognition rate of the first photographing component; when a relatively short person to pass reaches an area far from the base, the first photographing component does not detect the face. Since the position of the second photographing component is higher, the second photographing component can detect the relatively short person to pass. At this time, the person to pass waves to the second photographing component, and the second photographing component performs wave recognition. When it detects that a relatively short person to pass is approaching, it transmits the information to the controller, and the controller controls the moving component to move downward until the first photographing component recognizes the face of the person to pass, completing the face recognition of the relatively short person to pass; when a relatively tall person to pass approaches the moving component, the person to pass waves to the first photographing component, and the first photographing component performs wave recognition. When it detects that a relatively tall person to pass is approaching, it transmits the information to the controller, and the controller controls the moving component to move upward until the first photographing component recognizes the face of the person to pass, completing the face recognition of the relatively tall person to pass. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0019] Figure 1 is a front structural schematic diagram of the present utility model;
[0020] Figure 2 is a side structural schematic diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] To make the objectives, technical solutions and advantages of the present utility model clearer, 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 some of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.
[0022] As described in the background art, since the camera of the existing face recognition access control device is fixed, it is impossible to perform face recognition on a person to be passed who is relatively tall (the face is higher than the camera) or relatively short (the face is lower than the camera). At the same time, when the sun shines directly on the camera during the day, the camera cannot detect the face, affecting the recognition rate. In addition, when the surrounding light is relatively dark, the person to be passed does not know which position is the best recognition position, so they will approach and move away from the device repeatedly, which reduces the experience of the person to be passed. The face recognition device for access control of the present utility model can automatically adjust the camera to perform face recognition on a person to be passed who is relatively tall or short, can avoid the sun shining directly on the camera, improve the face recognition rate, can also prompt the person to be passed of the best recognition position, guide the person to stand at the best recognition position, and enhance the user experience. The embodiments of the present utility model will be explained in detail below.
[0023] The following content refers to Figure 1 and Figure 2 .
[0024] A face recognition device for access control according to the present utility model includes a base 1, a controller (not shown), a moving component 2 and a photographing component 3. The moving component 2 and the photographing component 3 are both connected to the controller. The moving component 2 is arranged on the base 1 and can move up and down on the base 1. The photographing component 3 can perform wave recognition. The photographing component 3 includes a first photographing member 31 and a second photographing member 32. The first photographing member 31 is arranged on the moving component 2. The base 1 includes a shielding portion 11 arranged at the upper end of the base 1. The shielding portion 11 inclines towards the side of the moving component 2. The second photographing member 32 is arranged on the side wall of the shielding portion 11 facing the moving component 2. In this embodiment, both the first photographing member 31 and the second photographing member 32 are cameras. The base 1 is vertical, and the shielding portion 11 is fixed at the upper end of the base 1.
[0025] The moving component 2 includes a moving panel 21 and a connecting rod 22. The first photographing member 31 is arranged on the moving panel 21. The moving panel 21 moves up and down on the base 1 through the connecting rod 22. A driving member (not shown) for driving the connecting rod 22 to move up and down is arranged on the base 1. The driving member is connected to the controller. In this embodiment, the driving member includes a motor screw module. The connecting rod is arranged on the motor screw module. A vertical guide rail 12 is arranged on the base 1. The connecting rod 22 is arranged on the guide rail 12 and can move up and down along the guide rail 12. In other embodiments, the driving member can include a cylinder or other power members that can drive the connecting rod to move up and down.
[0026] In this embodiment, the first shooting member 31 and the second shooting member 32 can perform wave recognition. An intelligent wave recognition algorithm is set in the controller. The wave recognition includes upward wave gesture recognition and downward wave gesture recognition. The first shooting member 31 can perform downward wave gesture recognition, and the second shooting member 32 can perform upward wave gesture recognition. The controller is arranged on the base 1 or the moving component 2. When a shorter person to pass arrives at an area far from the base 1, since the position of the second shooting member 32 is higher, the second shooting member 32 can detect the shorter person to pass. At this time, the person to pass makes an upward wave gesture to the second shooting member 32. The second shooting member 32 can perform upward wave gesture recognition, recognizes that a shorter person to pass is approaching and needs to perform face recognition, and transmits the above information to the controller. The controller controls the moving component 2 to move downward. The moving component 2 drives the first shooting member 31 to move downward. During the downward movement of the first shooting member 31, it will be detected by the controller. If it is detected that the standard for face recognition is met, face recognition can be performed. At this time, the moving component 2 also stops moving downward at the same time. In other embodiments, it can also be set that the first shooting member 31 can perform upward wave gesture recognition. When a shorter person to pass approaches the first shooting member 31, the person raises the arm upward to the height of the first shooting member 31 and makes an upward wave gesture to the first shooting member 31. The first shooting member 31 performs upward wave gesture recognition and transmits the information to the controller. The controller controls the moving component 2 to move downward until the first shooting member 31 recognizes the face of the person to pass and the moving component 2 stops moving downward, completing the face recognition of the shorter person to pass. When a taller person to pass approaches the moving component 2, the person to pass makes a downward wave gesture to the first shooting member 31. The first shooting member 31 performs downward wave gesture recognition, detects that a taller person to pass is approaching, and transmits the information to the controller. The controller controls the moving component 2 to move upward until the first shooting member 31 recognizes the face of the person to pass, completing the face recognition of the taller person to pass.
[0027] An infrared sensor 4 is provided on the movable panel 21. The infrared sensor 4 is used to detect whether someone is approaching, and the infrared sensor 4 is connected to a controller. A fill light 5 is provided on the movable panel 21. The fill light 5 is used for fill light during face recognition when the light is insufficient. The fill light 5 is connected to the controller. A fill light 5 is provided on each of the left and right sides of the first shooting member 31 to ensure comprehensive fill light and improve the face recognition rate. When the surrounding light is relatively dim and the infrared sensor 4 detects that someone is approaching, the controller will control the fill light 5 to turn on. A card swiping area 6 is provided on the movable panel 21, and the card swiping area 6 is connected to the controller. The IC card information is pre-entered in the background. When the person to pass through the access control, they can pass by swiping the card. At the same time, when the first shooting member 31 fails to detect the face, the face recognition device will trigger a prompt, and the person to pass through can perform the card swiping operation according to the prompt. A display screen 7 is provided on the movable panel 21, and the display screen 7 is connected to the first shooting member 31. The display screen 7 is a large screen arranged in the middle of the movable panel 21. When the first shooting member 31 detects a face, it will capture the face and display it on the display screen 7, which is convenient for the person to pass through to intuitively observe the face recognition process.
[0028] A standing position prompt member 8 is provided on the movable panel 21. The standing position prompt member 8 is used to prompt the person to pass through to stand at a designated position for convenient face recognition. The standing position prompt member 8 is an indicator light, and the irradiation angle of the indicator light is adjustable. In this embodiment, the indicator light is a laser indicator light. At night or on a relatively dim day, the person to pass through does not know which position can be irradiated by the fill light to the greatest extent and can be quickly recognized. The laser indicator light irradiates the ground downward, showing the best recognition position to the person to pass through and guiding the person to pass through to stand at the best recognition position. The person to pass through does not need to move themselves to adapt to the fill light irradiation for face recognition, which can greatly improve the experience of the person to pass through.
[0029] When the utility model is in use, the base 1 is fixed in the access control area. The face information of users is input in advance through the background and transmitted to the controller for identification. When a person to pass approaches the moving component 2 at a certain distance, the infrared sensor 4 senses the approach of someone, and the controller controls the first shooting component 31 to turn on. The first shooting component 31 captures and identifies the face and displays it on the display screen 7 in real time. If it is a user with a recorded face, the access control triggers the door opening operation. When there is direct sunlight on the first shooting component 31 during the day, when a person approaches the moving component 2, part of the sunlight will be blocked. By arranging a shielding part 11 inclined towards the moving component 2 at the upper end of the base 1, the shielding part 11 can further block the direct sunlight at a certain angle, so as to ensure that the sunlight is fully blocked and does not directly shine on the first shooting component 31, which can effectively improve the face recognition rate of the first shooting component 31. When a relatively short person to pass reaches an area far from the base 1 and the first shooting component 31 does not detect the face, the infrared sensor 4 senses the approach of someone. At the same time, because the position of the second shooting component 32 is relatively high, the second shooting component 32 can detect the relatively short person to pass. At this time, the person to pass only needs to wave their hand upwards to the second shooting component 32. The second shooting component 32 performs the recognition of waving the hand upwards, detects the approach of a relatively short person to pass, transmits the information to the controller, and the controller controls the moving component 2 to move downwards. At the same time, the first shooting component 31 is started to perform face detection until the first shooting component 31 recognizes the face of the person to pass, and the moving component 2 stops moving downwards, completing the face recognition of the relatively short person to pass. After the access control is triggered and opened successfully, the moving component 2 moves up to return to the original position. When a relatively tall person to pass approaches the moving component and the first shooting component 31 does not detect the face, the infrared sensor 4 senses the approach of someone, and the second shooting component 32 can detect the relatively tall person to pass. At this time, the person to pass waves their hand downwards to the first shooting component 31. The first shooting component 31 performs the recognition of waving the hand downwards, detects the approach of a relatively tall person to pass, transmits the information to the controller, and the controller controls the moving component 2 to move upwards. At the same time, the first shooting component 31 is started to perform face detection until the first shooting component 31 recognizes the face of the person to pass, and the moving component 2 stops moving upwards, completing the face recognition of the relatively tall person to pass. After the access control is triggered and opened successfully, the moving component 2 moves down to return to the original position.
[0030] Although the preferred embodiments in the embodiments of the present utility model have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present utility model.
[0031] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these modifications and variations.
Claims
1. A face recognition device for access control, characterized in that, It includes a base, a controller, a moving component and a shooting component. Both the moving component and the shooting component are connected to the controller. The moving component is arranged on the base and can move up and down on the base. The shooting component can perform wave recognition. The shooting component includes a first shooting piece and a second shooting piece. The first shooting piece is arranged on the moving component. The base includes a shielding part arranged at the upper end of the base. The shielding part inclines towards the side of the moving component. The second shooting piece is arranged on the side wall of the shielding part facing the moving component.
2. The face recognition device for access control according to claim 1, characterized in that, The moving component includes a moving panel and a connecting rod. The first shooting piece is arranged on the moving panel. The moving panel moves up and down on the base through the connecting rod. A driving piece for driving the connecting rod to move up and down is arranged on the base. The driving piece is connected to the controller.
3. The face recognition device for access control according to claim 2, wherein A standing position prompt piece is arranged on the moving panel. The standing position prompt piece is used to prompt the person to be passed through to stand at the designated position for convenient face recognition.
4. The face recognition device for access control according to claim 3, wherein, The standing position prompt piece is an indicator light, and the irradiation angle of the indicator light is adjustable.
5. The face recognition device for access control according to claim 1, characterized in that, A wave recognition algorithm is set in the controller. The wave recognition includes upward wave gesture recognition and downward wave gesture recognition. The first shooting piece can perform downward wave gesture recognition, and the second shooting piece can perform upward wave gesture recognition.
6. The face recognition device for access control according to claim 5, characterized in that If the first shooting piece recognizes that someone makes a downward wave gesture, the moving component drives the first shooting piece to move up.
7. The face recognition device for access control according to claim 5, characterized in that, If the second shooting piece recognizes that someone makes an upward wave gesture, the moving component drives the first shooting piece to move down.
8. The face recognition device for access control according to claim 2, wherein, An infrared sensing piece is arranged on the moving panel. The infrared sensing piece is used to sense whether someone approaches.
9. The face recognition device for access control according to claim 2, wherein, A fill light is arranged on the moving panel. The fill light is used for fill light during face recognition.
10. The face recognition device for access control according to claim 2, characterized in that, A display screen is arranged on the moving panel. The display screen is connected to the first shooting piece.