Coated glass detection device and detection method

Abstract

The invention discloses a coated glass detection device and method, and the device comprises a detection module which is used for detecting the defects of coated glass; the sampling module is arranged in the moving direction of the coated glass, keeps a preset distance from the sampling module and is used for collecting sampling data of the coated glass before the coated glass is detected by the detection module; the data processing module comprises a first data processing unit and a second data processing unit, and the first data processing unit is connected with the sampling module and the detection module and is used for receiving the sampling data and calculating to obtain coating parameters of the coated glass. Before the detection module detects the coated glass, the sampling module collects the coating parameters of the coated glass, and the detection parameters of the detection module are automatically adjusted according to the coating parameters, so that the detection efficiency of the coated glass is improved, manual input of the detection parameters is avoided, and the detection cost and the error probability are reduced.

Description

Technical Field

[0001] The present invention relates to the field of optical detection, and in particular to a coated glass detection device and a detection method. Background Art

[0002] With the further development of energy-saving technology, the proportion of coated glass in the market has further expanded. Coated glass refers to glass with one or more layers of thin film coated on the surface to change its optical, thermal, mechanical or chemical properties. Coating can make glass have multiple functions and is widely used in construction, automobiles, electronics and other fields.

[0003] In the deep processing of float glass in the existing technology, with the continuous advancement of coating technology and the diversification of applications, various types of coated glass have been produced. Since the optical properties (such as transmittance and reflectivity) of different types of films are significantly different, online detection equipment needs to be able to accurately adapt to the detection requirements of these different types of films.

[0004] At present, online detection equipment often needs to manually input parameters to adapt to the detection needs of different membranes. Manually inputting parameters is not only inefficient and costly, but also prone to errors. Summary of the invention

[0005] The main purpose of the present invention is to provide a coated glass detection device and a detection method, aiming to solve the problem of how to improve the detection efficiency of coated glass.

[0006] To achieve the above object, the present invention provides a coated glass detection device, comprising:

[0007] A detection module for detecting defects in coated glass;

[0008] A sampling module, arranged in the moving direction of the coated glass, maintaining a preset distance from the sampling module, and used for collecting sampling data of the coated glass before the coated glass is detected by the detection module;

[0009] A data processing module, the data processing module includes a first data processing unit and a second data processing unit, the first data processing unit is connected to the sampling module and the detection module, and is used to receive the sampling data and calculate the coating parameters of the coated glass; the second data processing unit is used to receive the sampling data and calculate the coating parameters of the coated glass, and adjust the detection parameters in the detection module according to the coating parameters.

[0010] Further, the sampling module includes a sampling imaging module and a sampling imaging light source module;

[0011] The sampling imaging module is connected to the first data processing unit and is used to collect the sampling data and send it to the first data processing unit; the sampling imaging light source module is connected to the second data processing unit and is used to adjust the sampling imaging light source parameters under the control of the second data processing unit to generate multiple sets of sampling data.

[0012] Furthermore, the sampling imaging light source module includes a coaxial light source and a transmission light source module, the coaxial light source is arranged on one side of the coated glass, and the transmission light source module is arranged on the other side of the coated glass to collect the sampling data.

[0013] Furthermore, the transmission light source module includes a reflection prism, a black background and a transmission light source arranged in sequence to collect the sampling data.

[0014] Furthermore, the data processing module also includes a third data processing unit, which is connected to the second data processing unit and is used to receive and convert the data sent by the second data processing unit to generate user-readable data and output it.

[0015] Further, the detection module includes a detection imaging module and a detection imaging light source module;

[0016] The detection parameters include imaging parameters in the imaging module and light source parameters in the detection imaging light source module, and the data processing module adjusts the imaging parameters and / or light source parameters in the detection module according to the coating parameters.

[0017] Furthermore, the detection imaging light source module includes a transmission light source and a reflection light source to collect defects of the coated glass through time division multiplexing technology.

[0018] Furthermore, the present invention also provides a detection method based on the detection device described in any one of the above technical solutions, comprising:

[0019] Collecting sampling data of the coated glass through the sampling module, and transmitting the sampling data to the data processing module;

[0020] The data processing module receives the sampled data and calculates the coating parameters of the coated glass, and adjusts the detection parameters in the detection module according to the coating parameters;

[0021] Defects of coated glass are detected by the detection module.

[0022] Furthermore, the sampling module includes a coaxial light source arranged on one side of the coated glass, and a reflective prism, a black background, and a transmission light source arranged in sequence on the other side of the coated glass; collecting sampling data of the coated glass through the sampling module and transmitting the sampling data to the data processing module includes:

[0023] Before the coated glass reaches the sampling station of the sampling module, the transmission light source is turned on, and the energy of the transmission light source at this time is recorded as the first transmission light source energy;

[0024] Turn off the transmission light source, turn on the coaxial light source, and record the energy of the reflection prism at this time;

[0025] When the glass reaches the sampling station of the sampling module, the transmission light source is turned on, and the energy of the transmission light source at this time is recorded as the second transmission light source energy;

[0026] Turn off the transmission light source, turn on the coaxial light source, and record the energy of the black background at this time;

[0027] The energy of the first transmitted light source, the energy of the reflecting prism, the energy of the second transmitted light source and the energy of the black background are transmitted to the data processing module.

[0028] Further, the detection module includes a detection imaging module and a detection imaging light source module; the receiving the sampling data through the data processing module and calculating the coating parameters of the coated glass, and adjusting the detection parameters in the detection module according to the coating parameters includes:

[0029] Before the coated glass reaches the sampling station of the detection module, turning on the detection imaging module and the detection imaging light source module;

[0030] Reading the coating parameters in the data processing module, and recording the imaging parameters in the detection imaging module and the light source parameters of the detection imaging light source module at this time;

[0031] The imaging parameters and light source parameters are adjusted by the coating parameters.

[0032] The beneficial effect of the technical solution of the present invention is that the coating parameters of the coated glass are collected by the sampling module before the detection module detects the coated glass, and the detection parameters of the detection module are automatically adjusted according to the coating parameters, thereby improving the detection efficiency of the coated glass, avoiding manual input of detection parameters, and reducing the detection cost and the probability of errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1A schematic structural diagram of an embodiment of a coated glass detection device of the present invention;

[0034] Figure 2 A schematic diagram of the structure of a sampling module provided in an embodiment of a coated glass detection device of the present invention;

[0035] Figure 3 A schematic diagram of the structure of a transmission light source provided in an embodiment of a coated glass detection device of the present invention;

[0036] Figure 4 A schematic diagram of the working process of a sampling module provided in an embodiment of a coated glass detection device of the present invention;

[0037] Figure 5 A schematic diagram of the working process of a detection module provided in an embodiment of a coated glass detection device of the present invention;

[0038] Figure 6 A schematic diagram of steps provided for an embodiment of a detection method of a coated glass detection device of the present invention;

[0039] Figure 7 A detailed schematic diagram of step S1 provided in an embodiment of a detection method of a coated glass detection device of the present invention;

[0040] Figure 8 A detailed schematic diagram of step S2 is provided for an embodiment of a detection method of a coated glass detection device of the present invention.

[0041] Description of Figure Numbers:

[0042] name Label name 1 Coated glass 2 Sampling Module 3 Detection module 4 First data processing unit 5 Second data processing unit 6 The third data processing unit 7 Photoelectric switch 21 Area Scan Camera 22 Coaxial light source 23 Transmitted light source module 31 Transmitted light source 32 Black background 33 Reflecting prism

[0043] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] The scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0047] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include multiple such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] Specifically, Figure 1 As shown, the present invention proposes a coated glass detection device, including: a detection module 3, a sampling module 2 and a data processing module.

[0049] As an implementation method, Figure 2 As shown, the sampling module 2 is arranged in the moving direction of the coated glass 1, and maintains a preset distance from the sampling module 2, and is used to collect sampling data of the coated glass 1 before the coated glass 1 is detected by the detection module 3. Specifically, the sampling module 2 includes a sampling imaging module and a sampling imaging light source module. The sampling imaging module is connected to the first data processing unit 4, and is used to collect sampling data and send it to the first data processing unit 4; the sampling imaging light source module is connected to the second data processing unit 5, and is used to adjust the sampling imaging light source parameters under the control of the second data processing unit 5 to generate multiple sets of sampling data. Specifically, the sampling imaging module is an area array camera 21, and the area array camera 21 (Area Array Camera) is an image sensor technology for capturing two-dimensional images. Its sensor is composed of a matrix of pixels, which can capture the entire area of ​​the image at the same time, rather than scanning line by line like a scanning camera. The area array camera 21 is generally used for high-resolution image acquisition and is widely used in industrial detection, medical imaging, computer vision and other fields. When detecting defects in the coated glass 1, the area array camera 21 can efficiently capture the image of the entire glass surface, which is convenient for detecting surface and internal defects.

[0050] Furthermore, the sampling imaging light source module includes a coaxial light source 22 and a transmission light source module 23, wherein the coaxial light source 22 is arranged on one side of the coated glass 1, and the transmission light source module 23 is arranged on the other side of the coated glass 1 to collect sampling data. It should be noted that the coaxial light source 22 is a lighting method in which the light source and the camera lens are arranged on the same axis. The light irradiates the sample along the optical axis direction of the lens and is reflected back to the camera sensor through the lens. The transmission light source 31 is a light source located on the other side of the sample, and the light passes through the sample and is captured by the camera opposite the light source. The light passes through one side of the sample and is collected on the other side.

[0051] As an embodiment, the transmission light source module 23 includes a reflection prism 33, a black background 32 and a transmission light source 31 arranged in sequence to collect sampling data. Specifically, the reflection prism 33 is a total internal reflection prism, which is an optical device that uses the principle of total reflection to change the propagation direction of light. The reflection prism 33 is made of a material with a high refractive index, such as glass or optical plastic, and has a specific geometric shape. The black background 32 is a completely black background, which can reduce background noise, increase the contrast of the image, and make the details of the coated glass 1 clearer.

[0052] As an implementation method, Figure 1 As shown, the coated glass detection device of the present invention further includes: a photoelectric detection switch. The photoelectric detection switch is arranged in front of the sampling module 2 and is used to detect whether the coated glass 1 reaches the detection position. The detection position is the station where the coated glass detection device of the present invention detects the coated glass 1.

[0053] For example, Figure 4 As shown, before the coated glass 1 reaches the photoelectric detection switch, the transmission power supply in the sampling module 2 is turned on, and the energy of the transmission light source 31 at this time is recorded as the first transmission light source 31 energy t0, and then the transmission light source 31 is turned off, the coaxial light source 22 is turned on, and the energy f0 of the reflection prism 33 at this time is recorded. After the coated glass 1 reaches the photoelectric detection switch, the transmission light source 31 is turned on, and the energy of the transmission light source 31 at this time is recorded as the second transmission light source 31 energy t1; then the transmission light source 31 is turned off, the coaxial light source 22 is turned on, and the energy f1 of the black background 32 at this time is recorded. Finally, the energy t0 of the first transmission light source 31, the energy f0 of the reflection prism 33, the energy t1 of the second transmission light source 31, and the energy f1 of the black background 32 are sent to the data processing module, and the coating parameters of the coated glass 1 are calculated by the data processing module. Further, the area array camera 21 collects data of the coaxial light source 22 and the reflection light source, and then sends them to the data processing module, which analyzes and adjusts the energy of the coaxial light source 22 and the reflection light source at the same time.

[0054] As an implementation method, Figure 3 As shown, the detection module 3 is preset with adjustable detection parameters for detecting defects of the coated glass 1. The detection module 3 includes a detection imaging module and a detection imaging light source module. The detection imaging module is connected to the data processing module and is used to collect images of the coated glass 1 and send them to the data processing module. Specifically, the imaging module includes a photographic device and a collection module. The photographic device is, for example, a high-definition camera, which is used to take images or videos of the coated glass 1. The high-definition camera is connected to the data processing module to transmit the images or videos of the coated glass 1 to the data processing module for analysis. The collection module includes a photosensitive device for detecting the light of the coated glass 1. The photosensitive device is, for example, a photodetector. The collection module is connected to the data processing module to transmit the data of the detected light to the data processing module. Further, the detection parameters include imaging parameters in the imaging module and light source parameters in the imaging light source module. The data processing module adjusts the imaging parameters and / or light source parameters in the detection module 3 according to the coating parameters.

[0055] Furthermore, adjustable light source parameters are preset in the detection imaging light source module, such as the energy of the light source. The detection imaging light source module includes a transmission light source 31 and a reflection light source to collect the defects of the coated glass 1 through time division multiplexing technology. It should be noted that time division multiplexing (TDM) is a technology for time-sharing transmission of multiple signals on the same channel. It divides time into several time slices, each time slice is assigned to a signal for transmission, thereby realizing the sharing of multiple signals on a physical channel. In the application of detecting defects in coated glass 1, time division multiplexing technology can be used to alternately use different light sources (such as a transmission light source 31 and a reflection light source). The transmission light source 31 penetrates the glass through light and is suitable for detecting internal defects; the reflection light source reflects light on the glass surface and is suitable for checking surface defects. Time division multiplexing technology can alternately use these two light sources to collect images through different time periods to help fully identify the defects of the coated glass 1.

[0056] For example, Figure 5 As shown, before the coated glass 1 reaches the sampling station of the detection module 3, the detection imaging module and the detection imaging light source module are turned on. The coating parameters in the data processing module are read, and the imaging parameters in the detection imaging module and the light source parameters of the detection imaging light source module are recorded at this time. Finally, the imaging parameters and the light source parameters are adjusted by the coating parameters, so that when the detection module 3 detects the coated glass 1, the imaging parameters and the light source parameters match the coated glass 1 to meet the detection requirements of different film layers.

[0057] Further, the data processing module includes a first data processing unit 4, a second data processing unit 5 and a third data processing unit 6. The first data processing unit 4 is connected to the sampling module 2 and the detection module 3, and is used to receive the sampling data and calculate the coating parameters of the coated glass 1; the second data processing unit 5 is used to receive the sampling data and calculate the coating parameters of the coated glass 1, and adjust the detection parameters in the detection module 3 according to the coating parameters. The third data unit is connected to the second data processing unit 5, and is used to receive and convert the data sent by the second data processing unit 5 to generate user-readable data and output it.

[0058] As an implementation mode, the first data processing unit 4, the second data processing unit 5 and the third data processing unit 6 are respectively the first data processor, the second data processor and the third data processor. The first data processor is connected to the detection module 3 and is used to perform preliminary data analysis on the data detected by the detection module 3; the second data processor is connected to the first data processor and is used to perform secondary data analysis on the data detected by the detection module 3; the third data processor is connected to the second data processor and is used to perform final data analysis on the data detected by the detection module 3. Specifically, the third processor is an industrial computer, which mainly performs final data processing on the data detected by the detection module 3 and then outputs the result.

[0059] For example, Figure 1 As shown, the detection process of the coated glass detection device of the present invention is as follows: when the glass does not enter the photoelectric switch 7, the sampling module 2 and the detection module 3 collect the initial data of the glass, and then send it to the second data processing unit 5. At this time, the acquisition module loads the initial data of the first data processing unit 4. When the coated glass 1 passes through the photoelectric switch, the sampling module 2 quickly collects the data of the coated glass 1 at this time and sends it to the second data processing unit 5. The second data processing unit 5 quickly analyzes the glass parameters at this time, and then calculates the detection parameters required by the detection module 3, sends them to the first data processing unit 4 to set the detection parameters, and adjusts the detection imaging light source module at the same time. When the coated glass 1 reaches the detection module 3, the detection module 3 starts to detect glass defects, and then sends them to the first data processing unit 4 for preliminary data analysis. The first data processing unit 4 sends them to the second data processing unit 5 for a second analysis, and then the second data processing unit 5 performs final data processing on the third data processing unit 6, and displays the results through the display device.

[0060] Furthermore, if Figure 6 As shown, the present invention also provides a detection method of the detection device based on any one of the above technical solutions, comprising the following steps (S1, S2 and S3):

[0061] Step S1: Collect sampling data of the coated glass 1 through the sampling module 2, and transmit the sampling data to the data processing module.

[0062] Step S2: receiving the sampled data through the data processing module and calculating the coating parameters of the coated glass 1, and adjusting the detection parameters in the detection module 3 according to the coating parameters.

[0063] Step S3: Detect defects of the coated glass 1 by using the detection module 3 .

[0064] Furthermore, if Figure 7 As shown, the sampling module 2 includes a coaxial light source 22 disposed on one side of the coated glass 1 and a reflective prism 33, a black background 32 and a transmission light source 31 arranged in sequence on the other side of the coated glass 1. Step S1 includes:

[0065] Step S11: before the coated glass 1 reaches the sampling station of the sampling module 2, the transmission light source 31 is turned on, and the energy of the transmission light source 31 at this time is recorded as the energy of the first transmission light source 31;

[0066] Step S12: turn off the transmission light source 31, turn on the coaxial light source 22, and record the energy of the reflection prism 33 at this time;

[0067] Step S13: when the glass reaches the sampling station of the sampling module 2, the transmission light source 31 is turned on, and the energy of the transmission light source 31 at this time is recorded as the energy of the second transmission light source 31;

[0068] Step S14: turn off the transmission light source 31, turn on the coaxial light source 22, and record the energy of the black background 32 at this time;

[0069] Step S15: Transmitting the energy of the first transmission light source 31 , the energy of the reflection prism 33 , the energy of the second transmission light source 31 and the energy of the black background 32 to the data processing module.

[0070] Furthermore, if Figure 8 As shown, the detection module 3 includes a detection imaging module and a detection imaging light source module; step S2 includes:

[0071] Step S21: before the coated glass 1 reaches the sampling station of the detection module 3, turning on the detection imaging module and the detection imaging light source module;

[0072] Step S22: reading the coating parameters in the data processing module, and recording the imaging parameters in the detection imaging module and the light source parameters of the detection imaging light source module at this time;

[0073] Step S23: adjusting imaging parameters and light source parameters through coating parameters.

[0074] The present invention collects coating parameters of coated glass through a sampling module before the detection module detects the coated glass, and automatically adjusts the detection parameters of the detection module according to the coating parameters, thereby improving the detection efficiency of the coated glass, avoiding manual input of detection parameters, and reducing the detection cost and the probability of errors.

[0075] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A coated glass detection device, characterized in that: include: A detection module for detecting defects in coated glass; A sampling module, arranged in the moving direction of the coated glass, maintaining a preset distance from the sampling module, and used for collecting sampling data of the coated glass before the coated glass is detected by the detection module; A data processing module, the data processing module includes a first data processing unit and a second data processing unit, the first data processing unit is connected to the sampling module and the detection module, and is used to receive the sampling data and calculate the coating parameters of the coated glass; the second data processing unit is used to receive the sampling data and calculate the coating parameters of the coated glass, and adjust the detection parameters in the detection module according to the coating parameters.

2. The coated glass detection device according to claim 1, characterized in that: The sampling module includes a sampling imaging module and a sampling imaging light source module; The sampling imaging module is connected to the first data processing unit and is used to collect the sampling data and send it to the first data processing unit; the sampling imaging light source module is connected to the second data processing unit and is used to adjust the sampling imaging light source parameters under the control of the second data processing unit to generate multiple sets of sampling data.

3. The coated glass detection device according to claim 2, characterized in that: The sampling imaging light source module includes a coaxial light source and a transmission light source module. The coaxial light source is arranged on one side of the coated glass, and the transmission light source module is arranged on the other side of the coated glass to collect the sampling data.

4. The coated glass detection device according to claim 3, characterized in that: The transmission light source module includes a reflection prism, a black background and a transmission light source arranged in sequence to collect the sampling data.

5. The coated glass detection device according to claim 1, characterized in that: The data processing module also includes a third data processing unit, which is connected to the second data processing unit and is used to receive and convert the data sent by the second data processing unit to generate user-readable data and output it.

6. The coated glass detection device according to claim 1, characterized in that: The detection module includes a detection imaging module and a detection imaging light source module; The detection parameters include imaging parameters in the imaging module and light source parameters in the detection imaging light source module, and the data processing module adjusts the imaging parameters and / or light source parameters in the detection module according to the coating parameters.

7. The coated glass detection device according to claim 6, characterized in that: The detection imaging light source module includes a transmission light source and a reflection light source to collect defects of the coated glass through time division multiplexing technology.

8. A detection method of the detection device according to any one of claims 1 to 7, characterized in that: include: Collecting sampling data of the coated glass through the sampling module, and transmitting the sampling data to the data processing module; The data processing module receives the sampled data and calculates the coating parameters of the coated glass, and adjusts the detection parameters in the detection module according to the coating parameters; Defects of coated glass are detected by the detection module.

9. The detection method according to claim 8, characterized in that: The sampling module includes a coaxial light source arranged on one side of the coated glass, and a reflective prism, a black background, and a transmission light source arranged in sequence on the other side of the coated glass; collecting sampling data of the coated glass through the sampling module and transmitting the sampling data to the data processing module includes: Before the coated glass reaches the sampling station of the sampling module, the transmission light source is turned on, and the energy of the transmission light source at this time is recorded as the first transmission light source energy; Turn off the transmission light source, turn on the coaxial light source, and record the energy of the reflection prism at this time; When the glass reaches the sampling station of the sampling module, the transmission light source is turned on, and the energy of the transmission light source at this time is recorded as the second transmission light source energy; Turn off the transmission light source, turn on the coaxial light source, and record the energy of the black background at this time; The energy of the first transmitted light source, the energy of the reflecting prism, the energy of the second transmitted light source and the energy of the black background are transmitted to the data processing module.

10. The detection method according to claim 8, characterized in that: The detection module includes a detection imaging module and a detection imaging light source module; the data processing module receives the sampling data and calculates the coating parameters of the coated glass, and adjusts the detection parameters in the detection module according to the coating parameters, including: Before the coated glass reaches the sampling station of the detection module, turning on the detection imaging module and the detection imaging light source module; Reading the coating parameters in the data processing module, and recording the imaging parameters in the detection imaging module and the light source parameters of the detection imaging light source module at this time; The imaging parameters and light source parameters are adjusted by the coating parameters.

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