Marker identification system

Abstract

The utility model provides a marker identification system. The marker identification system comprises an information acquisition device, an object placing table and a position adjusting device, the information acquisition device comprises a soft light cover, a light source and a camera, openings are formed in the upper portion and the lower portion of the soft light cover, the light source is located above the soft light cover and projects light to the inner side wall of the soft light cover through the upper opening of the soft light cover, the camera is located on the outer side of the soft light cover, and a shooting opening for the camera to shoot images is formed in the soft light cover; the object placing table is correspondingly arranged below the opening in the lower part of the soft light cover and is used for placing a product with a marker; and the position adjusting device is arranged to be capable of moving the product on the object placing table into the soft light cover and enabling the marker to face the shooting opening. According to the system, the marker is moved, the camera corresponds to the marker, the marker image is obtained through the camera, the marker information is recognized and stored after the image is subjected to background processing, the detection process does not need or only needs a small amount of manpower to participate in work, the manpower capital is saved, various markers can be recognized in an image recognition mode, and the applicability is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of marker recognition, in particular to a marker recognition system. Background Art

[0002] In today's society, most products are marked with identifiers for anti-counterfeiting or traceability purposes. The identification information of these identifiers needs to be collected and stored to facilitate query and traceability. Currently, QR codes and barcodes are the most common, but not the only, methods available. Some companies have developed their own unique product identifiers, resulting in a wide variety of identifiers. Most of this information is collected manually or through specific identification devices, such as QR code scanners. These devices have relatively limited recognition capabilities and are not suitable for multiple identifiers. Furthermore, they require manual information collection, resulting in low efficiency. Utility Model Content

[0003] In order to solve the technical problems existing in the above background technology, the utility model provides a marker recognition system.

[0004] The technical solution of this utility model is as follows:

[0005] A marker recognition system includes an information collection device, a storage platform and a positioning device;

[0006] The information collection device includes a soft cover, a light source and a camera. The soft cover is provided with openings at the top and bottom. The light source is located above the soft cover and projects light to the inner wall of the soft cover through the opening at the top of the soft cover. The camera is located outside the soft cover and is provided with a shooting port for the camera to shoot images.

[0007] The storage table is located below the lower opening of the soft cover and is used to place products with markings.

[0008] The positioning device is configured to move the product on the storage table into the soft light cover and make the marker face the shooting port.

[0009] Using a placement table and positioning device, products bearing markers are moved into the diffuser, with the marker facing the camera aperture. The camera then captures an image of the marker, which is then processed and stored. This inspection process requires no human intervention, or only minimal manual effort, such as placing the product, saving manpower and improving efficiency. Furthermore, image processing allows for the recognition of a wide range of markers, extending its applicability.

[0010] The object recognition system also includes a positioning device, located outside the diffuser and positioned horizontally with the diffuser. The diffuser has an information collection port corresponding to the positioning device. The positioning device is electrically connected to the light source, camera, and positioning device. When the positioning device detects a product, it sends a signal to the light source, camera, and positioning device, causing the positioning device to stop operating and the light source and camera to start capturing an image of the product.

[0011] The positioning device preferably includes two vertically arranged photoelectric sensors. The lower photoelectric sensor detects the height of the product and triggers a signal to the light source, camera, and positioning device. The upper photoelectric sensor is used for anomaly detection and is electrically connected to the positioning device. If it detects a product, it triggers a signal to the positioning device, causing it to stop operating. The upper photoelectric sensor can also be connected to an alarm device to warn of any system anomalies.

[0012] The preferred diffuser is a vertical circular tube, the light source is arranged at the upper end of the diffuser, and the shooting port is arranged on the tube wall. The circular tube shape enables the inner wall of the diffuser to better scatter light, so as to facilitate the generation of a soft light field inside it.

[0013] Preferably, there are two light sources, which project light to the positions on both sides close to the shooting port, so as to fully illuminate the half area where the shooting port is located, so as to obtain a clear image of the marker. In addition, the light source does not project light directly toward the shooting port or the marker, which can avoid excessive brightness and affect the normal shooting of the camera, as well as the clarity of the image.

[0014] In this application, the positioning device includes a lifting mechanism, which includes a vertically arranged screw rod, a sliding block threadedly connected to the screw rod, and a first driver for driving the screw rod to rotate. The sliding block is fixedly connected to the storage table and drives the storage table to rise and fall through the rotation of the screw rod.

[0015] Furthermore, the positioning device is equipped with limit switches at the upper and lower ends of the screw rod, and the sliding block is equipped with a limit trigger plate, which is located between the two limit switches. When the limit trigger plate contacts the limit switch, the storage plate stops moving, preventing the storage plate from moving up and down excessively and causing collision and damage.

[0016] The storage table is also rotatably connected to a tray, which can be rotated horizontally under the drive of a second driver. The product is placed on the tray. By rotating the tray, the direction of the marker on the product is adjusted to face the shooting port to facilitate obtaining the front image of the marker.

[0017] In order to achieve better space utilization, the marker recognition system also includes a reflector, through which the camera obtains the image of the marker in the soft light cover. In this way, the placement of the camera can be adjusted according to the specific spatial layout relationship to better utilize the space and reduce the size of the space occupied by the system.

[0018] Preferably, the camera is located directly below the reflector, and the reflector is horizontally aligned with the shooting port.

[0019] This utility model provides a marker recognition system that uses a diffuser and light source to create a soft light zone within the diffuser. A positioning device then inserts a product bearing a marker into the diffuser, with the marker facing the camera port. A clear image of the marker is captured by the camera, and background image processing is performed to identify and store the marker information. The detection process requires no human intervention, or only minimal manual effort, such as placing the product, saving labor and improving operational efficiency. Furthermore, image processing allows for the recognition of a variety of markers, broadening its applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the attached figure:

[0021] Figure 1 A schematic diagram of a marker recognition system;

[0022] Figure 2 It is a schematic diagram of the information collection and positioning device;

[0023] Figure 3 This is a schematic diagram of the positioning device and storage platform.

[0024] The components represented by the reference numerals in the figure are:

[0025] 11. Soft cover; 12. Light source; 13. Camera; 14. Shooting port; 15. Reflector; 21. Storage table; 22. Tray; 31. Positioning device; 32. Information collection port; 41. Screw; 42. Sliding block; 43. First drive; 44. Guide rod; 45. Limit switch; 46. Limit trigger plate. DETAILED DESCRIPTION

[0026] like Figures 1 to 3 As shown, the embodiment of the present invention provides a marker recognition system for identifying marker information on a product. This embodiment takes liquor as an example, but is not limited thereto. Liquor usually has a marker on the side of the bottle cap or the bottle cap cover.

[0027] The marker recognition system includes an information collection device, a storage platform 21 and a positioning device;

[0028] The information collection device includes a diffuser 11, a light source 12, and a camera 13. The diffuser 11 has openings at the top and bottom. The light source 12 is located above the diffuser 11 and projects light onto the inner wall of the diffuser 11 through the upper opening of the diffuser 11. The camera 13 is located outside the diffuser 11 and is provided with a shooting port 14 for the camera 13 to shoot images.

[0029] The storage table 21 corresponds to the lower opening of the soft cover 11 and is used to place products with identification marks;

[0030] The positioning device is configured to move the product on the storage table 21 into the soft light cover 11 and make the marker face the shooting port 14 .

[0031] Using the placement table 21 and positioning device, products bearing markers are moved into the diffuser 11, with the marker facing the camera port 14. Camera 13 then captures an image of the marker, which is then processed by the backend to identify and store the marker information. The inspection process requires no human intervention, or only minimal manual effort, such as placing the product, saving manpower and improving efficiency. Furthermore, image processing can identify a variety of markers, broadening its applicability.

[0032] Specifically, if Figure 2 As shown, in this embodiment, the diffuser 11 is in the shape of a vertical circular tube. The light source 12 is located at the upper end of the diffuser 11, and the shooting port 14 is provided on the tube wall. The product, i.e., the wine bottle or the bottle cap, enters the diffuser 11 from the lower portion. The circular tubular shape allows the inner wall of the diffuser 11 to better reflect light, thereby facilitating the generation of a soft light field within the diffuser 11. The light is softer and avoids strong reflections that affect the clarity of the captured image.

[0033] The light source 12 includes two bar-shaped light sources 12, which are installed horizontally. The two light sources 12 are arranged in a V-shape, with the proximal end corresponding to the shooting port 14 and close to the shooting port 14. The two light sources 12 respectively project light at an angle toward the positions on both sides of the shooting port 14 so as to fully illuminate the half area where the shooting port 14 is located, thereby facilitating the acquisition of a clear image of the marker. In addition, the light source 12 does not project light directly toward the shooting port 14 or the marker. The former will cause the light to pass directly through the shooting port 14 and be captured by the camera 13, reducing the contrast brightness of the marker in the image captured by the camera 13 and affecting the clarity of the marker. The latter will cause the marker to be overexposed, and the camera 13 will not be able to obtain a clear image of the marker.

[0034] The camera 13 can directly correspond to the shooting port 14 and directly obtain the image of the marker through the shooting port 14. However, in order to achieve better space utilization, the marker recognition system in this embodiment also includes a reflector 15, which is arranged on the outside of the soft light cover 11. The camera 13 uses the imaging principle of the reflector 15 to capture the image of the marker in the soft light cover 11. In this way, the placement position of the camera 13 can be adjusted according to the specific spatial layout relationship to better utilize the space and reduce the space occupied by the system.

[0035] In this embodiment, the camera 13 is preferably positioned directly below the reflector 15, which is horizontally aligned with the imaging port 14 and tilted downward at 45 degrees to minimize the horizontal space occupied by the camera 13. When the bottle cap is moved to a level position with the imaging port 14, the camera 13 reflects the image of the side of the bottle cap or the side of the bottle cap cover through the reflector 15, and then obtains the identification information through image processing.

[0036] To ensure that the marker is positioned relative to the camera port 14, i.e., the bottle cap in this embodiment is moved to a level with the camera port 14, the marker recognition system in this embodiment further includes a positioning device 31, located outside the diffuser 11 and arranged horizontally therewith. The diffuser 11 is provided with an information collection port 32 corresponding to the positioning device 31. The positioning device 31 is electrically connected to the light source 12, the camera 13, and the positioning device. When the positioning device 31 detects a product, it sends a signal to the light source 12, the camera 13, and the positioning device, causing the positioning device to stop operating and the light source 12 and the camera 13 to start capturing an image of the product.

[0037] Specifically, the positioning device 31 comprises two vertically arranged photoelectric sensors. The lower photoelectric sensor detects the height of the product. When a marker aligns with the camera port 14, it triggers a signal to the light source 12, camera 13, and the positioning device. The upper photoelectric sensor detects anomalies, such as a failure of the lower photoelectric sensor. It is electrically connected to the positioning device. If it detects a product, it triggers a signal to the positioning device, causing it to stop operating. The upper photoelectric sensor can also be connected to an alarm device to warn of any system anomalies.

[0038] In this embodiment, the lower photoelectric sensor is aligned horizontally with the camera port 14, preferably with the upper half of the camera port 14. When it detects a bottle cap, it can stop the marker on the bottle cap's side at the center of the corresponding camera port 14. The upper photoelectric sensor is lower than the top of the diffuser 11 and is preferably close to the photoelectric sensor below it to immediately stop the positioning device in the event of an abnormality, preventing the product or the storage platform 21 from colliding with the diffuser 11.

[0039] like Figure 3 As shown, in this embodiment, the positioning device includes a lifting mechanism, which includes a vertically arranged screw 41, a sliding block 42 threadedly connected to the screw 41, and a first driver 43 that drives the screw 41 to rotate. The sliding block 42 is fixedly connected to the storage platform 21 and is driven to move the storage platform 21 up and down through the rotation of the screw 41. Guide rods 44 are also provided on both sides of the screw 41 to facilitate the vertical and stable sliding of the sliding block 42.

[0040] Furthermore, the positioning device is equipped with limit switches 45 at the upper and lower ends of the screw rod 41, corresponding to each other. The slide block 42 is equipped with a limit trigger plate 46, which is located between the two limit switches 45. When the limit trigger plate 46 contacts the limit switch 45, the first driver 43 stops driving the screw rod 41, causing the storage plate to stop moving, thus preventing the storage plate from moving up and down excessively and colliding and being damaged.

[0041] The distance between the two limit switches 45 is smaller than the distance from the lower limit position of the storage plate to the lower end of the soft cover 11 .

[0042] Furthermore, the storage table 21 is provided with a tray 22 having a stepped recessed groove, the center of which corresponds to the center of the diffuser 11. The stepped groove can accommodate and hold products of different sizes, such as the bottoms of wine bottles of different diameters. Furthermore, the stepped groove can also be used to center the product below the center of the diffuser 11, facilitating quick alignment of the marker with the camera port 14.

[0043] Furthermore, the tray 22 can be rotatably connected to the storage table 21 and can be horizontally rotated under the drive of a second driver (not shown in the figure). The product is placed on the tray 22. By rotating the tray 22, the orientation of the marker on the product is adjusted so that it faces the shooting port 14, so as to obtain the front image of the marker.

[0044] In some other embodiments, the tray 22 can be provided with a centering mechanism, such as at least three clamping feet that can slide toward the center of the tray 22, and the clamping feet are arranged horizontally in a ring. The product is clamped by a spring or a drive and the device is located directly below the center of the soft light cover 11.

[0045] This utility model provides a marker recognition system that uses a diffuser 11 and a light source 12 to create a soft light zone within the diffuser 11. A positioning device then inserts a product bearing a marker into the diffuser 11, with the marker facing a capture port 14. A camera 13 captures a clear image of the marker, which is then processed by the backend to identify and store the marker information. The detection process requires no human intervention, or only minimal manual effort, such as placing the product, saving labor and improving operational efficiency. Furthermore, image processing allows for the recognition of a variety of markers, broadening its applicability.

Claims

1. A marker recognition system, characterized in that: It includes an information collection device, a storage platform (21) and a positioning device; The information acquisition device comprises a soft cover (11), a light source (12) and a camera (13); the soft cover (11) is provided with openings at the top and bottom; the light source (12) is located above the soft cover (11) and projects light onto the inner wall of the soft cover (11) through the upper opening of the soft cover (11); the camera (13) is located outside the soft cover (11); and the soft cover (11) is provided with a shooting port (14) for the camera (13) to shoot images; The storage platform (21) corresponds to the lower portion of the opening of the soft light cover (11) and is used to place products with identification marks; The positioning device is configured to move the product on the storage table (21) into the soft light cover (11) and to make the marker face the shooting port (14).

2. A marker recognition system according to claim 1, characterized in that: The invention also includes a positioning device (31) located outside the soft light cover (11) and arranged horizontally with the soft light cover (11); an information collection port (32) is provided on the soft light cover (11) corresponding to the positioning device (31); and the positioning device (31) is electrically connected to the light source (12), the camera (13) and the positioning device.

3. A marker recognition system according to claim 2, characterized in that: The positioning device (31) comprises two vertically arranged photoelectric sensors.

4. The marker recognition system according to claim 1, wherein: The soft light cover (11) is in the shape of a vertical circular tube, the light source (12) is arranged at an upper end position of the soft light cover (11), and the shooting port (14) is opened on the tube wall.

5. A marker recognition system according to claim 4, characterized in that: The light sources (12) include two, which respectively project light toward positions close to both sides of the shooting port (14).

6. A marker recognition system according to claim 1, characterized in that: The positioning device includes a lifting mechanism, which includes a vertically arranged screw rod (41), a sliding block (42) threadedly connected to the screw rod (41), and a first driver (43) that drives the screw rod (41) to rotate, and the sliding block (42) is fixedly connected to the storage platform (21).

7. A marker recognition system according to claim 6, characterized in that: The position adjustment device is provided with limit switches (45) at the upper and lower ends of the corresponding screw rod (41), and the sliding block (42) is provided with a limit trigger piece (46), and the limit trigger piece (46) is located between the two limit switches (45).

8. A marker recognition system according to claim 7, characterized in that: A tray (22) is rotatably connected to the storage table (21), and the tray (22) can be horizontally rotated under the drive of a second driver.

9. The marker recognition system according to claim 1, wherein: It also includes a reflector (15), and the camera (13) obtains the image of the marker in the soft light cover (11) through the reflector (15).

10. The marker recognition system according to claim 9, wherein: The camera (13) is located directly below the reflector (15), and the reflector (15) is horizontally aligned with the shooting port (14).

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