Fresh water pearl detection equipment based on computer vision
By designing a freshwater pearl detection device that includes components such as a base, a cover, and a miniature dual-axis cylinder, the problem of low detection efficiency caused by manual cleaning was solved, and automatic cleaning and improved detection accuracy were achieved.
Patent Information
- Application Number
- CN202520888160.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-05-07
AI Technical Summary
Freshwater pearls require manual cleaning before testing, which leads to low testing efficiency, and existing equipment struggles to improve testing accuracy.
Design a freshwater pearl inspection device based on computer vision. By setting up components such as a base, cover, miniature dual-axis cylinder, fixed shell, groove, connecting seat, protrusion, nylon brush and column, the device can realize automatic surface cleaning of freshwater pearls and perform inspection with a high-resolution industrial camera.
It enables automatic cleaning before freshwater pearl testing, improving cleaning efficiency and increasing testing accuracy.
Smart Images

Figure CN223926326U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of freshwater pearl detection technology, specifically a freshwater pearl detection device based on computer vision. Background Technology
[0002] Freshwater pearls refer to pearls produced in rivers and lakes. In my country, the main freshwater pearl farming areas are Zhuji, Changde, Suzhou, Jiangxi, Hubei, and Anhui provinces. Freshwater pearls are mostly produced using the triangular sail mussel. They also possess excellent skincare benefits, including whitening, fading blemishes, and nourishing the skin.
[0003] However, freshwater pearls are inspected using high-resolution industrial cameras to improve accuracy. Furthermore, freshwater pearls typically require manual surface cleaning before inspection, which reduces the efficiency of inspection. Therefore, it is necessary to design an inspection device with cleaning capabilities. Utility Model Content
[0004] The purpose of this invention is to provide a freshwater pearl detection device based on computer vision. This invention uses components such as a base, a cover, a miniature dual-axis cylinder, a fixed shell, a groove, a connecting seat, a protrusion, a nylon brush, and a column to work together, thereby facilitating automatic surface cleaning of freshwater pearls before detection, improving cleaning efficiency, and also improving detection accuracy; thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A freshwater pearl detection device based on computer vision includes a base, a cover is fixedly installed on the top of the base, and a fixing frame is fixedly installed on the back end of the top of the cover. A mounting shell is provided at one end of the top of the fixing frame, and a mounting groove is opened inside the mounting shell. A high-resolution industrial camera is snapped into the mounting groove.
[0007] A miniature dual-axis cylinder is fixed above the back end of the cover. The output end of the miniature dual-axis cylinder, which extends through the inside of the cover, is fixedly connected to a fixed shell. Grooves are provided on both sides of the inside of the fixed shell, and protrusions are engaged inside the grooves. A connecting seat is provided inside the fixed shell, and the protrusions are fixedly installed on both sides of the connecting seat. Several sets of nylon brushes are installed at the bottom of the connecting seat, and a column for hand gripping is fixedly installed at the top of the connecting seat.
[0008] Preferably, the top end of the fixing frame is provided with a slot, and the top two ends of the slot are provided with fixing grooves, and fixing blocks are engaged inside the fixing grooves.
[0009] Preferably, the fixing block is fixedly installed around the bottom of the mounting shell, and a high-resolution industrial camera is installed inside the slot.
[0010] Preferably, grip rings for hand gripping are fixedly installed on both sides of the mounting shell.
[0011] Preferably, the inner bottom of the casing is provided with a placement seat for placing freshwater pearls.
[0012] Preferably, the bottom two ends of the placement seat are fixedly installed with locking posts, which are engaged with corresponding slots opened at the bottom of the cover, and handles are installed on both sides of the placement seat.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This utility model uses a combination of components such as a base, cover, miniature dual-axis cylinder, fixed shell, groove, connecting seat, protrusion, nylon brush, and column to automatically clean the surface of freshwater pearls before testing, thereby improving cleaning efficiency and testing accuracy. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the explosion separation structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the detachable structure of the internal components of the casing of this utility model;
[0018] Figure 4 for Figure 3 Schematic diagram of the structure on the right.
[0019] In the diagram: 1. Base; 2. Cover; 3. Fixing bracket; 4. Mounting shell; 401. Mounting groove; 402. Grip ring; 5. High-resolution industrial camera; 6. Fixing block; 601. Fixing groove; 7. Groove; 8. Placement seat; 9. Clamping post; 10. Post groove; 11. Miniature dual-axis cylinder; 12. Fixing shell; 13. Groove; 14. Connecting seat; 15. Protrusion; 16. Nylon brush; 17. Column. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-4 This utility model provides a technical solution:
[0022] A freshwater pearl detection device based on computer vision includes a base 1, a cover 2 is fixedly installed on the top of the base 1, and a fixing frame 3 is fixedly installed on the back end of the top of the cover 2. A mounting shell 4 is provided at one end of the top of the fixing frame 3. A mounting groove 401 is opened inside the mounting shell 4, and a high-resolution industrial camera 5 is snapped into the mounting groove 401.
[0023] The high-resolution industrial camera model is Basler ace acA2000-50gc. It plays an irreplaceable role in the fields of intelligent manufacturing and quality inspection. Its core value lies in achieving digital analysis at the microscale through precision optical imaging.
[0024] Its core working principle is as follows: A large-area sensor (such as a global shutter CMOS sensor) combined with a precision optical system converts the optical signals of tiny targets (such as sub-millimeter-level defects) into a high-density pixel array (such as 50 megapixels). This, combined with digital image processing algorithms (such as super-resolution reconstruction and noise suppression) and high-speed transmission interfaces (such as 10 GigE), enables precise quantitative analysis of microscopic features. Its key technologies lie in breaking the optical diffraction limit (improving effective resolution through pixel shifting technology), expanding the dynamic range (multi-frame HDR synthesis), and real-time processing capabilities (FPGA hardware acceleration), ultimately achieving μm-level measurement accuracy and millisecond-level response speed in industrial inspection.
[0025] A miniature dual-axis cylinder 11 is fixedly mounted on the upper back end of the cover 2. The output end of the miniature dual-axis cylinder 11, which extends through the cover 2, is fixedly connected to a fixed shell 12. Grooves 13 are provided on both sides of the interior of the fixed shell 12. Protrusions 15 are engaged inside the grooves 13. A connecting seat 14 is provided inside the fixed shell 12. The protrusions 15 are fixedly installed on both sides of the connecting seat 14. Several sets of nylon brushes 16 are installed at the bottom of the connecting seat 14. A column 17 for hand gripping is fixedly installed at the top of the connecting seat 14.
[0026] This utility model uses a combination of components such as a base 1, a cover 2, a miniature dual-axis cylinder 11, a fixed shell 12, a groove 13, a connecting seat 14, a protrusion 15, a nylon brush 16, and a column 17 to automatically clean the surface of freshwater pearls before testing, thereby improving cleaning efficiency and testing accuracy.
[0027] Furthermore, by controlling the external controller, the micro dual-axis cylinder 11 is controlled to work so that its output end drives the fixed shell 12 to move back and forth, which indirectly drives the fixed shell 12 to drive the nylon brush 16 installed inside to move back and forth, thereby facilitating the cleaning of the surface of the freshwater pearl in the placement seat 8, thereby improving the accuracy of the high-resolution industrial camera 5 in detecting freshwater pearls.
[0028] Furthermore, by pinching the column 17 with your hand, you can move the connecting seat 14 upward so that the protrusions 15 on both sides of the connecting seat 14 can be moved out of the grooves 13 in the fixing shell 12, thereby facilitating the replacement of the nylon brush 16.
[0029] The top end of the mounting bracket 3 has a slot 7, and the top two ends of the slot 7 have fixing grooves 601, with fixing blocks 6 snapped into the inside of the fixing grooves 601. The fixing blocks 6 are fixedly installed around the bottom of the mounting housing 4, and a high-resolution industrial camera 5 is installed inside the slot 7. Grip rings 402 for hand gripping are fixedly installed on both sides of the mounting housing 4.
[0030] This utility model uses components such as slot 7, fixing slot 601, fixing block 6, mounting shell 4 and grip ring 402 to facilitate the removal of mounting shell 4 from fixing frame 3, so as to enable the inspection and replacement of high-resolution industrial camera 5 installed inside mounting shell 4.
[0031] By holding the grip ring 402 with your hand, you can move the mounting housing 4 upward so that the fixing blocks 6 set around the bottom of the mounting housing 4 can be removed from the fixing groove 601, thus making it easier to separate the mounting housing 4 from the fixing frame 3; then, take the high-resolution industrial camera 5 and move it upward so that the clamping plates set on both sides of it can be removed from the mounting groove 401, thus making it easier to replace it.
[0032] The inner bottom of the casing 2 is provided with a placement seat 8 for placing freshwater pearls. The bottom ends of the placement seat 8 are fixedly installed with locking posts 9, which engage with corresponding grooves 10 opened in the inner bottom of the casing 2. Handles are installed on both sides of the placement seat 8. By providing the placement seat 8, locking posts 9, and grooves 10, the placement seat 8 can be easily disassembled for cleaning and replacement.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A freshwater pearl detection device based on computer vision, comprising a base (1), characterized in that: The top of the base (1) is fixedly installed with a cover (2), and a fixing frame (3) is fixedly installed on the back end of the top of the cover (2). One end of the top of the fixing frame (3) is provided with a mounting shell (4). The mounting shell (4) has a mounting groove (401) inside, and a high-resolution industrial camera (5) is snapped into the mounting groove (401). A miniature dual-axis cylinder (11) is fixed above the back end of the cover (2). The output end of the miniature dual-axis cylinder (11) that penetrates into the inside of the cover (2) is fixedly connected to a fixed shell (12). Grooves (13) are provided on both sides of the inside of the fixed shell (12). A protrusion (15) is snapped into the inside of the groove (13). A connecting seat (14) is provided inside the fixed shell (12). The protrusion (15) is fixedly installed on both sides of the connecting seat (14). Several sets of nylon brushes (16) are installed at the bottom of the connecting seat (14). A column (17) for hand gripping is fixedly installed at the top of the connecting seat (14).
2. The freshwater pearl detection device based on computer vision according to claim 1, characterized in that: The top end of the fixing frame (3) is provided with a slot (7), and the top two ends of the slot (7) are provided with fixing grooves (601), and fixing blocks (6) are engaged inside the fixing grooves (601).
3. The freshwater pearl detection device based on computer vision according to claim 2, characterized in that: The fixing block (6) is fixedly installed around the bottom of the mounting shell (4), and a high-resolution industrial camera (5) is provided inside the slot (7).
4. The freshwater pearl detection device based on computer vision according to claim 1, characterized in that: The mounting housing (4) is fixedly mounted with grip rings (402) for hand gripping on both sides.
5. The freshwater pearl detection device based on computer vision according to claim 1, characterized in that: The inner bottom of the casing (2) is provided with a placement seat (8) for placing freshwater pearls.
6. The freshwater pearl detection device based on computer vision according to claim 5, characterized in that: The bottom ends of the placement seat (8) are fixedly installed with locking posts (9), which are engaged in the corresponding column grooves (10) opened at the bottom of the cover (2). The two sides of the placement seat (8) are equipped with handles.