Online detection device for front and back surfaces of patterned glass

Abstract

The utility model discloses an on-line detection device for front and back surfaces of patterned glass, which comprises a light source module, an imaging module, a calculation module and an alarm module, and is characterized in that the light source module is positioned above the patterned glass and is used for emitting light towards the patterned glass to form an area to be detected on the surface of the patterned glass; the imaging module is located above the patterned glass, and the imaging module is used for collecting a to-be-detected area to form a to-be-detected image; the calculation module is electrically connected to the imaging module so as to control the imaging module to carry out acquisition, and the calculation module receives the to-be-detected image and carries out operation processing on the to-be-detected image; the alarm module is electrically connected to the calculation module so as to give an alarm under the control of the calculation module. The light source module and the imaging module are matched to obtain the to-be-detected image, the calculation module accurately and rapidly calculates the to-be-detected image, the front face and back face conditions of the patterned glass can be judged, wrong products can be intercepted in time, large-batch defective products are prevented from entering subsequent procedures, and the yield is increased.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic double-glass technology, and in particular to an online detection device for the front and back sides of patterned glass. Background Technology

[0002] Photovoltaic double-glass modules mainly consist of panel glass, backsheet glass, and solar cells. The panel glass and backsheet glass are typically manufactured using patterned glass manufacturing processes. The backsheet glass usually has screen printing on the patterned surface of the patterned glass, while the panel glass has a coating on the smooth surface.

[0003] However, during the entire production and processing of double-glass photovoltaic modules, the patterned glass may not be processed with the patterned side (front) facing up or the smooth side (back) facing up as required. This could be due to a malfunctioning flipping machine or errors in manual loading. Incorrect orientation of the patterned glass during processing leads to a large number of defective products, reducing the yield rate of double-glass photovoltaic modules. Utility Model Content

[0004] The main purpose of this invention is to propose an online inspection device for the front and back sides of patterned glass, which aims to solve the problem of reduced yield caused by errors in the front and back sides during the processing of patterned glass for photovoltaic double-glass modules.

[0005] To achieve the above objectives, this utility model proposes an online inspection device for the front and back sides of patterned glass, comprising:

[0006] A light source module, located above the patterned glass, is used to emit light toward the patterned glass to form a detection area on the surface of the patterned glass;

[0007] An imaging module is located above the patterned glass and is used to acquire the area to be detected to form an image to be detected.

[0008] A computing module is electrically connected to the imaging module to control the imaging module to acquire data. The computing module receives the image to be detected and performs calculations on it.

[0009] An alarm module is electrically connected to the computing module to trigger an alarm under the control of the computing module.

[0010] In some embodiments, the light source module includes a first light group, which is a ring-shaped LED light group. The ring-shaped LED light group can emit focused light rays toward the patterned glass to form the area to be detected, and the area to be detected is circular.

[0011] In some embodiments, the diameter of the area to be detected is 30-45 mm.

[0012] In some embodiments, the angle α between the light emitted by the light source module and the surface of the patterned glass is 35-45 degrees, and the angle β between the acquisition direction of the imaging module and the surface of the patterned glass is 35-45 degrees.

[0013] In some embodiments, the imaging module includes a first camera, which is disposed opposite to the light source module, and the distance between the first camera and the surface of the patterned glass is 30-40 cm.

[0014] In some embodiments, the first camera is an area scan camera and is equipped with a high-resolution lens.

[0015] In some embodiments, the alarm module includes an alarm device, which is a traffic light pole and / or a buzzer.

[0016] In some embodiments, the signal light column includes a plurality of LED beads arranged in sequence, the plurality of LED beads emitting light sources of various colors.

[0017] In some embodiments, the online detection device for the front and back sides of patterned glass further includes a power supply module, which is electrically connected to the light source module, the imaging module, and the computing module.

[0018] This invention uses a light source module to project light onto the surface of patterned glass, forming a detection area. An imaging module captures image information from this area, generating a detection image which is then sent to a calculation module for processing. If an error occurs on the front or back of the patterned glass, the calculation module can control an alarm module to trigger an alarm and handle the issue promptly. This online, real-time monitoring and detection eliminates the need for additional sampling and inspection steps, improving the continuous and efficient operation of the production line. Furthermore, it can promptly intercept defective products, preventing large quantities of substandard goods from entering subsequent processes and improving yield. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structural frame of one embodiment of the online detection device for the front and back sides of patterned glass according to this utility model;

[0020] Figure 2 This is a schematic diagram illustrating the cooperation between the light source module and the imaging module in one embodiment of the online detection device for the front and back sides of patterned glass according to this utility model;

[0021] Figure 3 This is a schematic diagram of the image to be detected collected by the imaging module when there is no plate in one embodiment of the online detection device for the front and back sides of patterned glass of this utility model;

[0022] Figure 4This is a schematic diagram of the image to be detected captured by the imaging module when the reverse side of the patterned glass is facing up in one embodiment of the online detection device for the front and back sides of patterned glass of this utility model.

[0023] Figure 5 This is a schematic diagram of the image to be detected captured by the imaging module when the front and back of the patterned glass are facing up in one embodiment of the online detection device for the front and back of patterned glass of this utility model.

[0024] Explanation of icon numbers:

[0025] label name label name 2 Imaging module 1 Light source module 4 Alarm module 3 Calculation module 6 Patterned glass 5 Power module 11 First lighting group 21 First Camera 41 Alarm Detailed Implementation

[0026] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0029] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] This utility model proposes an online detection device for the front and back sides of patterned glass. Please refer to [reference needed]. Figure 1The system includes a light source module 1, an imaging module 2, a calculation module 3, and an alarm module 4. The light source module 1 is located above the patterned glass 6 and is used to emit light towards the patterned glass 6 to form a detection area on the surface of the patterned glass 6. The imaging module 2 is located above the patterned glass 6 and is used to acquire the detection area to form a detection image. The calculation module 3 is electrically connected to the imaging module 2 to control the imaging module 2 to acquire the image. The calculation module 3 receives the detection image and performs calculations on it. The alarm module 4 is electrically connected to the calculation module 3 to trigger an alarm under the control of the calculation module 3.

[0031] In this embodiment, the main function of the light source module 1 is to emit light onto the surface of the patterned glass 6, thereby forming a detection area on the surface of the patterned glass 6. By selecting appropriate light-emitting devices and adjusting the emission angle, intensity, and distribution of the light source, the range and uniform intensity of the detection area formed by the light on the surface of the patterned glass 6 can be precisely controlled, so that the imaging module 2 can accurately acquire and generate the detection image.

[0032] The images to be detected acquired using the light source module 1 and imaging module 2 of this invention fall into three categories. Firstly, such as... Figure 3 As shown, without the patterned glass 6, the light emitted from the light source module 1 cannot be reflected to the imaging module 2, so the image to be detected acquired by the imaging module 2 appears completely black.

[0033] Secondly, please refer to Figure 4 When the smooth side (i.e. the reverse side) of the patterned glass 6 is facing upwards, the smooth side will form a mirror reflection. After the light emitted by the light source module 1 is reflected, most of it enters the imaging module 2. As a result, the bright parts are concentrated in the image to be detected acquired by the imaging module 2 at this time.

[0034] Thirdly, please refer to Figure 5 When the embossed surface of the patterned glass 6 is facing upwards, that is, the front is facing upwards, the light that comes into contact with the embossed surface is scattered due to the imprint on the surface of the embossed surface. Therefore, only part of the light enters the imaging module 2. At this time, the bright parts in the image to be detected acquired by the imaging module 2 are scattered and show a certain regularity.

[0035] The computing module 3 plays the core "brain" role in the entire detection device. It is electrically connected to the imaging module 2. On the one hand, it controls the imaging module 2 to perform image acquisition, ensuring that the acquisition process is orderly and efficient. On the other hand, it receives the image to be detected from the imaging module 2 and uses the algorithm to perform operator processing on the image to be detected, thereby determining the front and back of the patterned glass 6.

[0036] In a preferred embodiment of this invention, the computing module 3 is an embedded ARM module with a network port, connected to the imaging module 2 via a gigabit network. The computing module 3 receives the aforementioned image to be inspected, performs binarization and fast Fourier transform on the image, determines the front and back of the patterned glass 6, and outputs a signal to the alarm module 4 via a GPIO port. When abnormal patterned glass 6 is detected, an alarm is triggered or a scrap signal is sent to the robotic arm or wired control, preventing abnormal products from entering the product packaging process and reducing manual repackaging. When a batch of abnormal products appears, an alarm signal can be promptly issued to remind production line personnel. The online front and back inspection device for patterned glass 6 can perform 24-hour uninterrupted inspection, offering high efficiency, low cost, and stable quality.

[0037] The beneficial effects of this utility model are as follows:

[0038] Real-time monitoring is performed during the production of patterned glass 6, eliminating the need for additional sampling and testing, thus avoiding production line downtime and wasted time caused by the testing process. The high-speed acquisition by the imaging module 2 and the rapid processing by the computing module 3, synchronized with the production line, enable the testing of each piece of patterned glass 6 in a very short time, ensuring continuous and efficient operation of the production line and improving production efficiency.

[0039] The light source module 1 forms a detection area on the surface of the patterned glass 6, allowing the imaging module 2 to accurately acquire the detection image and the calculation module 3 to perform accurate calculations. This enables the module to quickly determine the front and back of the patterned glass 6, intercept erroneous products in a timely manner, prevent a large number of defective products from entering subsequent processes, improve product quality, and increase yield.

[0040] Automated management is achieved through alarm module 4, reducing reliance on a large number of inspection workers. Operators only need to focus on alarm information, perform simple problem verification and handling, greatly freeing up manpower and reducing production costs.

[0041] Please refer to Figure 1 In some embodiments, the light source module 1 includes a first lamp group 11, the light source of the first lamp group 11 being an electric light source. For example, the first lamp group 11 is a ring-shaped LED lamp group, which can emit focused light rays toward the patterned glass 6 to form a detection area, the detection area being circular.

[0042] As a light source, LED light assemblies have high luminous efficiency, emitting sufficient light intensity with low power consumption to meet the illumination requirements during inspection. This also helps reduce the energy cost of the online inspection device for the front and back sides of patterned glass. Secondly, LED light assemblies have a long lifespan and better stability compared to some traditional light sources, reducing the likelihood of frequent damage and replacement. This allows the light source module 1 to maintain stable light output during long-term operation, ensuring the continuity and reliability of the inspection work.

[0043] In this embodiment, when focused light is emitted from the upper ring-shaped LED light group towards the surface of the patterned glass 6, firstly, this ring-shaped layout spatially surrounds the upper area of ​​the patterned glass 6, allowing light to be uniformly projected onto the patterned glass 6 from multiple angles. Compared to single-point or linear light sources, the ring-shaped distribution better ensures the uniformity of light coverage on the surface of the patterned glass 6, reducing the differences in light intensity caused by uneven distribution of light source positions, making the entire area to be detected more evenly illuminated, which is beneficial for the subsequent imaging module 2 to acquire a consistent, clear, and accurate image of the area to be detected. Secondly, this focused light characteristic makes the light energy more concentrated, forming a circular area to be detected on the surface of the patterned glass 6. The circular area has clear boundaries, which, compared to other irregular shapes, makes it easier for the imaging module 2 to accurately locate the acquisition range. Moreover, the light intensity of the circular area transitions relatively smoothly from the center to the edge, reducing the impact of sudden changes in light on the image quality, and providing a stable and high-quality lighting foundation for subsequent imaging.

[0044] In some embodiments, the diameter of the area to be detected is 30-45 mm.

[0045] In other words, the diameter of the area to be detected can be 30mm, 40mm, or 45mm, etc. For example, if the diameter of the area to be detected is 40mm, the diameter can be adjusted by adjusting the distance between the light source module 1 and the patterned glass 6 or by adjusting the angle between the light source module 1 and the patterned glass 6. Of course, the above is only an example, and the specific size can be determined according to actual needs. This utility model does not impose any limitations on this.

[0046] Please refer to Figure 2 In some embodiments, the angle α formed between the light emitted from the light source module 1 and the surface of the patterned glass 6 is 35-45 degrees, and the angle β formed between the acquisition direction of the imaging module 2 and the surface of the patterned glass 6 is 35-45 degrees.

[0047] In other words, the included angle α can be 35 degrees, 40 degrees, or 45 degrees, and the included angle β can also be 35 degrees, 40 degrees, or 45 degrees. For example, if the included angle α is 45 degrees, the included angle β is also 45 degrees. This symmetrical 45-degree angle setting ensures that the center of the area acquired by the imaging module 2 coincides with the area to be detected formed by the light source module 1. This allows light to be reflected off the surface of the patterned glass 6 and enter the imaging module 2, ensuring that the imaging module 2 can acquire a clear and accurate image of the object to be detected, thus improving the detection accuracy and efficiency of the entire detection device. Of course, the above is only an example; the specific angle can be determined according to actual needs, and this invention does not impose any limitations.

[0048] Please refer to Figure 1 In some embodiments, the imaging module 2 includes a first camera 21, which is disposed opposite to the light source module 1, and the distance between the first camera 21 and the surface of the patterned glass 6 is 30-40cm.

[0049] The main function of the first camera 21 is to capture images of the area to be detected to form an image, which is then analyzed by the subsequent calculation module 3 to detect the front and back of the patterned glass 6. The type of the first camera 21 can be varied, such as a line scan camera or an area scan camera.

[0050] In a preferred embodiment of this utility model, the first camera 21 is an area scan camera and is equipped with a high-resolution lens. Specifically, the area scan camera has a pixel count of 1280*1024, a pixel accuracy of 0.06mm / pixel, and a shooting area of ​​72*60mm. It can capture the entire area to be detected in one go to obtain a clear image of the area to be detected. Compared with a line scan camera, it does not require image construction through line-by-line scanning, thus improving the efficiency of the imaging module 2 in acquiring the image to be detected.

[0051] Furthermore, the frame rate of the first camera 21 is set to 10 frames per second. The size of the patterned glass 6 is 2400mm. At a production line speed of 20m / min, the first camera 21 can acquire 24 images to be inspected for calculation and analysis by the computing module 3, which can improve the detection accuracy of the detection device.

[0052] It should be noted that the distance between the first camera 21 and the patterned glass 6 can be 30cm, 35cm, or 40cm, etc. For example, a distance of 30cm between the first camera 21 and the patterned glass 6 can capture the entire area to be inspected to obtain a complete and clear image, ensuring the accuracy of the inspection. Of course, the above is only an example, and the specific distance can be determined according to actual needs. This utility model does not impose any limitations on this.

[0053] Please refer to Figure 1In some embodiments, the alarm module 4 includes an alarm 41, which is a traffic light pole and / or a buzzer.

[0054] By setting up alarm 41, when the detection device detects an abnormality, the calculation module 3 can control alarm 41 to issue an alarm message in a timely manner, so that operators can quickly deal with the abnormality, prevent defective products from continuing to flow out, and improve the yield of the production line.

[0055] In this embodiment, by setting signal pillar lights, the signal pillar lights can illuminate in case of abnormalities, making it easy for operators to clearly obtain alarm information and take timely corresponding actions, avoiding the impact of prolonged production line failures on production line efficiency. In addition, a buzzer can be added for dual alarm functionality; when a production line abnormality occurs, it can emit a buzzer to alert operators who are far away and cannot see the signal lights, allowing them to take timely measures. Furthermore, even if the signal pillar lights are damaged, the alarm module 4 can still respond to the production line fault, improving the stability of the entire device. Of course, the above is only an example; the alarm 41 can be a single signal pillar light. The specific design depends on actual needs, and this utility model does not impose any limitations.

[0056] In some embodiments, the signal light column includes a plurality of LEDs arranged sequentially, and the plurality of LEDs can emit light sources of various colors.

[0057] In this embodiment, the signal pillar light includes three-color LED beads arranged sequentially, specifically green, yellow, and red, emitting green, yellow, and red respectively. By setting the three-color signal pillar light, different status information can be conveyed to production line personnel, ensuring that they receive information in a timely and accurate manner, improving the speed of fault handling, and enhancing the automation efficiency of the production line.

[0058] For example, when the front or back of the patterned glass 6 is correctly facing upwards, the image to be acquired by the imaging module 2 is converted by the calculation module 3, and a signal indicating normal alignment is output. The green LED of the signal pillar light remains constantly lit, while the yellow and red LEDs are dimmed. When an incorrect orientation of the patterned glass 6 is detected, the signal pillar light flashes yellow continuously until the current patterned glass 6 is handled by the operator. When a batch of patterned glass 6 is incorrectly oriented, the alarm 41 flashes red continuously to sound an alarm. Of course, the above is only an example, and the specific alarm design can be determined according to actual needs. This utility model does not impose any limitations on this.

[0059] Please continue to refer to this. Figure 1 In some embodiments, the online detection device for the front and back of patterned glass also includes a power module 5, which is electrically connected to the light source module 1, the imaging module 2, and the computing module 3.

[0060] Power module 5 is electrically connected to light source module 1, imaging module 2, and computing module 3, enabling centralized power supply to these critical functional modules. This centralized power supply method ensures a stable and continuous power supply to each module during operation, avoiding problems such as unstable power supply voltage and mutual interference that may occur when using multiple distributed power supplies. For example, if light source module 1 and imaging module 2 use independent power supplies, voltage fluctuations in one of them may affect the working status of the corresponding module, thereby affecting the detection effect of the entire detection device. However, unified power supply by power module 5 can effectively avoid such risks and ensure the stable operation of the entire device.

[0061] The above are only some or preferred embodiments of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the contents of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. An embossed glass front and back surface on-line detection device, characterized by, It comprises: a light source module, which is located above the embossed glass and is used to emit light towards the embossed glass to form a to-be-detected area on the surface of the embossed glass; an imaging module, which is located above the embossed glass and is used to collect the to-be-detected area to form a to-be-detected image; a calculation module, which is electrically connected to the imaging module to control the imaging module to collect, receives the to-be-detected image and performs operation processing thereon; an alarm module, which is electrically connected to the calculation module to perform alarm under the control of the calculation module.

2. The embossed glass online detection device according to claim 1, characterized in that, The light source module comprises a first lamp group, which is a ring-shaped LED lamp group, and the ring-shaped LED lamp group can emit spotlight towards the embossed glass to form the to-be-detected area, and the to-be-detected area is circular.

3. The embossed glass online detection device according to claim 2, characterized in that, The diameter of the to-be-detected area is 30-45 mm.

4. The embossed glass online detection device according to claim 1, wherein, The included angle α between the light emitted by the light source module and the surface of the embossed glass is 35-45 degrees, and the included angle β between the collection direction of the imaging module and the surface of the embossed glass is 35-45 degrees.

5. The embossed glass online detection device according to claim 1, wherein, The imaging module comprises a first camera, which is arranged opposite to the light source module, and the distance between the first camera and the surface of the embossed glass is 30-40 cm.

6. The embossed glass online detection device according to claim 5, wherein, The first camera is a face array camera and is provided with a high-resolution lens.

7. The embossed glass online detection device according to claim 1, wherein, The alarm module comprises an alarm, which is a signal lamp column and / or a buzzer.

8. The embossed glass online detection device according to claim 7, characterized in that, The signal lamp column comprises a plurality of lamp beads arranged in sequence, and the plurality of lamp beads can emit light sources of multiple colors.

9. The embossed glass online detection device according to any one of claims 1 to 8, characterized in that, The embossed glass front and back surface online detection device further comprises a power module, which is electrically connected to the light source module, the imaging module and the calculation module.

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