Large stone plate high-definition scanning device

Abstract

The utility model relates to a large stone plate high-definition scanning device, which is characterized by comprising a rack, and a conveying mechanism, a scanning camera, a light source control mechanism, a monitoring system, an operation table and a fault warning system which are arranged on the rack, the scanning camera is arranged above the conveying mechanism, the light source control mechanism is arranged between the conveying mechanism and the scanning camera, the monitoring system is embedded in the machine frame, the operation table is movably arranged on the machine frame through a cantilever, the fault warning system is arranged on the top of the machine frame in a visualized mode, and the light source control mechanism is arranged between the conveying mechanism and the scanning camera. And the bottom of the rack is also provided with a light extinction plate. By adopting the scheme, the device has the advantages of being convenient to operate and high-definition and high-fidelity in acquired images.

Description

Technical Field

[0001] The utility model relates to the technical field of stone production, in particular to a high-definition scanning device for a large stone plate. Background Art

[0002] Personalized home furnishings have put forward new demands on the new generation of decoration industry. Among them, stone, as the main material for construction and decoration, is becoming more and more popular among users.

[0003] With the promotion and improvement of digitalization and virtual VR scene technology, given the large and heavy size of stone and the fast pace of work and life of customers, it is impossible to go to the stone market to purchase the stone that they are satisfied with. How to combine digital technology to reproduce the original stone and realize that customers can choose the stone that they are satisfied with according to the decoration effect at home will become the trend of personalized home in the future.

[0004] In view of this, there is an urgent need for a high-definition scanner device that can be digitized into the design software and combined with built-in algorithm software to allow the captured images of the stone to be reproduced natively.

[0005] Since stone has rich colors and textures, and different degrees of light reflection, how to capture high-definition and high-fidelity images has always been a key research and development topic in the field of stone scanning. Utility Model Content

[0006] The utility model aims to provide a high-definition scanning device for stone slabs, which has the advantages of convenient operation and high-definition and fidelity collected images.

[0007] In order to achieve the above purpose, the technical solution of the utility model is:

[0008] A high-definition scanning device for large stone slabs comprises a frame, and a conveying mechanism, a scanning camera, a light source control mechanism, a monitoring system, an operating table and a fault warning system arranged on the frame, wherein the outside of the frame is provided with an outer cover for shielding ambient light and dust, the scanning camera is arranged above the conveying mechanism, the light source control mechanism is arranged between the conveying mechanism and the scanning camera, the monitoring system is embedded in the frame, the operating table is movably arranged on the frame through a cantilever, the fault warning system is visually arranged on the top of the frame, and a matte plate is also arranged at the bottom of the frame.

[0009] Preferably, the light source control mechanism includes a hollow structure aluminum profile fixing frame, high-light-transmittance glass and LED lamp beads, the aluminum profile fixing frame is provided with a light reflecting surface with a U-shaped parabolic cross-section inside, the bottom and both sides of the light reflecting surface are hollow bodies, the corners of the aluminum profile are designed as arcs, and the high-light-transmittance glass is provided on the top of the U-shaped parabolic cross-section.

[0010] Preferably, a plurality of LED lamp beads are disposed at the bottom of the light reflecting surface, and the layout design of the LED lamp beads is based on the near-Lambert light source formula and is calculated and set in combination with the distance from the lamp beads to the lens surface.

[0011] Preferably, light source angle adjustment handles are provided at both ends of the aluminum profile fixing frame.

[0012] Preferably, the fault warning system is a three-color indicator light, which is green, red and yellow.

[0013] Preferably, the scanning camera is arranged on the top of the frame through a camera hanging plate, and a horizontal adjustment plate is also provided between the camera hanging plate and the camera.

[0014] Preferably, a vertical plate is provided below the horizontal adjustment plate, and the scanning camera is fixed on the vertical plate via a mounting plate.

[0015] Preferably, the mounting plate is provided with a plurality of groups of elliptical mounting holes, and the mounting plate is provided with fixing blocks on both sides of the camera.

[0016] Preferably, the cantilever comprises a cross beam and a vertical tube, the vertical tube comprises an inner tube and an outer tube which are relatively rotatable, and a brake block, and the brake block is movably arranged on the outer tube up and down.

[0017] Preferably, an industrial computer system, a power control system and a power voltage stabilization system are respectively provided at both side ends of the rack, and a cooling fan is provided between the industrial computer system and the rack.

[0018] A stone high-definition scanning method comprises the following steps:

[0019] Step 1: data annotation, annotating the bounding box of the stone for the collected image data;

[0020] Step 2: Model selection: select the deep learning model U-Net suitable for the stone cutout task;

[0021] Step 3: Data preprocessing: preprocess the labeled images, such as scaling, cropping, color space conversion, etc., to meet the input requirements of the model;

[0022] Step 4: Model training: Use the preprocessed image data as a training set to train the selected deep learning model;

[0023] Step 5: Cutout prediction: Use the trained model to perform cutout prediction on the new stone scan image;

[0024] Step six, post-processing, post-process the prediction results according to specific application requirements.

[0025] The beneficial effects of adopting the above scheme are:

[0026] 1. The overall relatively closed frame shell structure is adopted to prevent the entry of stone dust, improve the stability and life of electrical components such as cameras and industrial computers, reduce the frequency of manual cleaning, and reduce external light interference.

[0027] Second, use the internal cooling fan, which is used to dissipate heat on the one hand, and to use airflow to prevent dust from adhering to the camera lens on the other hand.

[0028] 3. Use the digital control system of the light source to adjust the light source in sections, and adjust the light reflection effect in real time, laying a solid foundation for achieving high-definition images.

[0029] Fourth, the cantilever of the operating table can be moved up and down and rotated. First, it can adapt to the heights of different employees, reduce fatigue and facilitate operation; second, when adjusting the camera clarity, one person can operate and observe the effect in real time. Compared with the traditional fixed operating table structure, one operator can be reduced, and the operation is more real-time.

[0030] 5. Configure PLC, touch screen, alarm device and other equipment, combined with program design, to achieve real-time monitoring and autonomous alarm of equipment, and feedback to the scanning system through communication. It can also perform remote troubleshooting and other query functions.

[0031] 6. Using the cutout algorithm based on the deep learning large model, different from the existing common algorithms, this algorithm can accurately extract the stone area from the stone scanning image, laying the foundation for the realization of surface defect detection, 3D modeling, color texture analysis and virtual display and other applications. Experiments have proved that the proposed algorithm has shown good results in stone scanners, providing strong support for the digital transformation and intelligent production of the stone industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a stereoscopic diagram of the overall structure of the utility model.

[0033] Figure 2 This is a diagram showing the internal structure of the present utility model.

[0034] Figure 3 This is a structural diagram of the installation of the scanning camera of the present utility model.

[0035] Figure 4 It is a three-dimensional diagram of the light source control mechanism of the utility model.

[0036] Figure 5 It is a three-dimensional diagram of the aluminum profile fixing frame of the utility model.

[0037] Figure 6 This is a cross-sectional view of the aluminum profile fixing frame of the utility model.

[0038] Figure 7 This is a structural diagram of the operating table installation of the utility model.

[0039] Figure 8 This is a plan view of the layout of the LED lamp beads of the light source control mechanism of the utility model.

[0040] Fig. 9 It is a cross-sectional view of the internal structure of the utility model.

[0041] Fig.10 It is a side view of the transmission mechanism of the utility model.

[0042] Fig.11 It is a side sectional view of the transmission mechanism of the utility model. DETAILED DESCRIPTION

[0043] The technical solution and beneficial effects of the present utility model will be described in detail below with reference to the accompanying drawings.

[0044] like Figure 1 and Figure 2 As shown, a high-definition scanning device for stone slabs includes a frame 1, a transmission mechanism 2 arranged on the frame 1, a scanning camera 3, a light source control mechanism 4, a monitoring system 5, an operating table 6 and a fault warning system 7.

[0045] The frame 1 is provided with an outer cover 11 outside to shield ambient light and dust.

[0046] Combination Figure 3 As shown, the scanning camera 3 is arranged above the conveying mechanism 2. Specifically, the scanning camera 3 is arranged on the top of the frame 1 through a camera fixing structure 31, and the camera fixing structure 31 includes a camera hanging plate 311, and a horizontal adjustment plate 312 is also arranged between the camera hanging plate 311 and the camera 3. The horizontal adjustment plate 312 is adjusted by eight screws evenly distributed at four corners, so that the parallel adjustment between the lower surface of the lens and the surface of the stone can be achieved. A vertical plate 313 is arranged below the horizontal adjustment plate 312, and the scanning camera 3 is fixed on the vertical plate 313 through a mounting plate 314. A plurality of groups of elliptical mounting holes 3141 are arranged on the mounting plate 314, and the distance between the lower surface of the lens and the surface of the stone can be roughly adjusted through the elliptical mounting holes 3141. Fixed blocks 3142 are arranged on both sides of the camera 3 on the mounting plate 314, and the fixed blocks 3142 are used to lock the scanning camera 3 to prevent shaking and quickly conduct heat dissipation. The camera fixing structure 31 is made of thickened aluminum material as a whole, which speeds up the conduction of heat to the camera, solves the problem that the camera cannot work for a long time, avoids the high heat affecting the stability of the camera's operation, and extends the service life of the scanning camera; on the other hand, the camera fixing structure 31 can be adjusted at multiple angles, and the camera mirror can be adjusted to the optimal state of being parallel to the light and the stone surface.

[0047] The resolution of a line scan camera can have a decisive influence on the image quality of each scan line. A camera with a high resolution can provide clearer image details. This embodiment uses an imported line scan camera with a resolution of 8K.

[0048] Line scanning speed is another important factor affecting the scanning effect. A fast camera frequency can reduce blur and distortion and improve image quality. The line scanning speed used by the scanning camera in this embodiment is 380 mm / s and the frequency is 48 KHZ.

[0049] The stability of the camera is very important for line scanning. A stable camera can avoid image jitter and blur. In this embodiment, Fig.10 and Fig.11 As shown, the conveying mechanism 2 includes a base frame 21, which is provided with at least four support columns 211, and a shock absorbing spring 212 is provided at the bottom of each support column 211. Self-aligning bearings 22 are provided on both sides of the base frame 21, and a roller 23 for conveying stones is provided between the two self-aligning bearings 22. The above-mentioned shock absorbing spring 212 can reduce the vibration of the machine caused by external factors.

[0050] In order to solve the problem that the edge of the wide-angle lens is easily distorted, the lens needs to be redesigned according to the actual optical path. The lens of this embodiment is specially customized according to experimental test data, and then the focus is adjusted on site to ensure clarity.

[0051] like Figures 4 to 7 and Fig. 9 As shown, a light source control mechanism 4 is provided between the transmission mechanism 2 and the scanning camera 3. The light source control mechanism 4 includes a hollow aluminum profile fixing frame 41, a high light transmittance glass 42 and an LED lamp bead 43. Among them, the inner side of the aluminum profile fixing frame 41 adopts a light reflecting surface 411 with a U-shaped parabolic cross section, so that the light is reflected as parallel light, and the parallel light is perpendicular to the stone surface. The structure of the U-shaped parabolic cross section makes the light focusing better and prevents interference from external light. The bottom and both sides of the light reflecting surface 411 are hollow bodies. The hollow structure can conduct and dissipate the heat of the LED lamp in time. In addition, the aluminum profile has good heat dissipation, which can improve the service life and stability of the LED lamp. The corners of the aluminum profile fixing frame 41 are designed as arcs, so that thermal expansion and contraction only change at the arcs, avoiding deformation of other profile surfaces. The top of the light reflecting surface 411 is provided with a high light transmittance glass 42, which forms a fully enclosed structure with the aluminum profile fixing frame 41 to prevent dust from entering the interior. A plurality of LED lamp beads are arranged at the bottom of the light reflecting surface 411. Figure 8As shown, the layout design of the LED lamp beads 43 here is based on the formula of the near-Lambert light source, and is calculated and set in combination with the distance from the lamp beads to the lens surface, so that the light sources at different angles meet the design requirements and solve the problem of relatively unclear images at both ends due to insufficient light sources. Light source angle adjustment handles 44 are also provided at both ends of the aluminum profile fixing frame 41. By rotating the angle of the handle 44, the angle of the two light sources is adjusted to converge on the stone to maximize the light intensity. The light source control mechanism 4 changes the power of the light source through the light source control software to adjust the color intensity of different plates, the power is variable, and energy saving can also be achieved.

[0052] The monitoring system 5 is embedded at both sides of the rack 1 and is used to monitor and report fault information of the display system, such as failure of the induction switch, abnormal operation of the encoder, scanner, etc.

[0053] like Figure 8 As shown, the operating table 6 is movably arranged on the top or side of the frame 1 through a cantilever, and is used for scanning software control, camera control, PLC and touch screen (monitoring system) access, image processing, progress collection, parameter editing, and uploading and printing. The cantilever includes a crossbeam 61 and a vertical tube 62, and the vertical tube 62 includes an inner tube 621 and an outer sleeve 622 that can rotate relatively, and a brake block 623, and the brake block 623 can be moved up and down on the outer sleeve 622. Through this structure, the operating table 6 can be adjusted up and down and rotated 360 degrees, so that the use needs of different operators can be met. More importantly, the staff of the operating table 6 can take into account the viewing of the monitoring system at the same time, and the optimal configuration of the staff can be achieved.

[0054] The fault warning system 7 is a three-color indicator light, which is set on the top of the rack, and is green, red and yellow respectively. Among them, green represents that the slate information is being collected, red represents abnormal working status, and yellow represents waiting to be collected.

[0055] The bottom of the frame 1 is also provided with a matte plate 8. This matte plate 8 is made of black sheet metal with baking varnish.

[0056] The two sides of the frame 1 are respectively provided with an industrial computer system 9, a power control system 10 and a power voltage stabilization system 11. After the aforementioned scanning camera 3, light source control mechanism 4, monitoring system 5, and fault warning system 7 are connected to the power control system 10 and the power voltage stabilization system 11, they are all connected to the industrial computer system 9 and the operation console 6 for communication.

[0057] A cooling fan is provided between the industrial computer system 9 and the rack 1. The power supply voltage stabilization system 11 is provided with voltage stabilizers, filters and other anti-interference devices for optimizing the electrical system, reducing interference sources, ensuring that signal transmission is not lost, and making the output more perfect.

[0058] The method for performing high-definition scanning of a large stone slab using the above-mentioned high-definition scanning device for large stone slabs comprises the following steps:

[0059] Step 1, data annotation, is to annotate the bounding box of the stone for the collected image data; this can be achieved through manual annotation or automatic annotation using existing annotation tools.

[0060] Step 2: Model selection: select the deep learning model U-Net suitable for the stone cutout task; the model is based on convolutional neural network (CNN) and has powerful feature extraction and segmentation capabilities.

[0061] Step 3: Data preprocessing: preprocess the labeled images, such as scaling, cropping, color space conversion, etc., to meet the input requirements of the model;

[0062] Step 4: Model training: Use the preprocessed image data as a training set to train the selected deep learning model; this requires inputting the image into the model and adjusting the model parameters so that it can accurately learn the boundary information of the stone.

[0063] Step 5: Cutout prediction: Use the trained model to perform cutout prediction on new stone scanned images; this can be achieved by inputting the scanned image into the model and obtaining the bounding box information output by the model.

[0064] Step 6: Post-processing: Post-process the prediction results according to specific application requirements. Use morphological operations to smooth boundaries, remove noise, etc.

[0065] The image of the stone slab processed by the above process has the advantages of high clarity and high fidelity.

[0066] The above embodiments are only for illustrating the technical idea of ​​the present utility model, and cannot be used to limit the protection scope of the present utility model. Any improvement and equivalent replacement made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A high-definition scanning device for stone slabs, characterized in that: It includes a frame, and a conveying mechanism, a scanning camera, a light source control mechanism, a monitoring system, an operating table and a fault warning system arranged on the frame, wherein the outside of the frame is provided with an outer cover for shielding ambient light and dust, the scanning camera is arranged above the conveying mechanism, the light source control mechanism is arranged between the conveying mechanism and the scanning camera, the monitoring system is embedded in the frame, the operating table is movably arranged on the frame through a cantilever, the fault warning system is visually arranged on the top of the frame, and the bottom of the frame is also provided with a matte plate.

2. A high-definition scanning device for stone slabs as claimed in claim 1, characterized in that: The light source control mechanism includes a hollow aluminum profile fixing frame, high-light-transmittance glass and LED lamp beads. The aluminum profile fixing frame is provided with a light reflecting surface with a U-shaped parabolic cross-section inside, the bottom and both sides of the light reflecting surface are hollow bodies, the corners of the aluminum profile are designed as arcs, and the high-light-transmittance glass is provided on the top of the U-shaped parabolic cross-section.

3. A high-definition scanning device for stone slabs as claimed in claim 2, characterized in that: A plurality of LED lamp beads are arranged at the bottom of the light reflecting surface, and the layout design of the LED lamp beads is based on the formula of the near-Lambert light source and is calculated and set in combination with the distance from the lamp beads to the lens surface.

4. A high-definition scanning device for stone slabs as claimed in claim 2, characterized in that: Both ends of the aluminum profile fixing frame are respectively provided with light source angle adjustment handles.

5. The high-definition scanning device for stone slabs according to claim 1, characterized in that: The fault warning system is a three-color indicator light, which is green, red and yellow.

6. The high-definition scanning device for stone slabs according to claim 1, characterized in that: The scanning camera is arranged on the top of the frame through a camera hanging plate, and a horizontal adjustment plate is also arranged between the camera hanging plate and the camera.

7. A high-definition scanning device for stone slabs as claimed in claim 6, characterized in that: A vertical plate is provided below the horizontal adjustment plate, and the scanning camera is fixed on the vertical plate via a mounting plate.

8. A high-definition scanning device for large stone slabs as claimed in claim 7, characterized in that: The mounting plate is provided with a plurality of groups of elliptical mounting holes, and the mounting plate is provided with fixing blocks on both sides of the camera.

9. The high-definition scanning device for stone slabs according to claim 1, characterized in that: The cantilever comprises a crossbeam and a vertical tube, the vertical tube comprises an inner tube and an outer tube which can rotate relatively, and a brake block, and the brake block is arranged on the outer tube so as to be movable up and down.

10. The high-definition scanning device for stone slabs according to claim 1, characterized in that: An industrial computer system, a power control system and a power voltage stabilization system are respectively arranged at two side ends of the frame, and a cooling fan is arranged between the industrial computer system and the frame.

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