Intelligent laser scribing method, system and equipment

Abstract

The invention discloses an intelligent laser scribing method, system and equipment, and the method comprises the steps: collecting the image information of target glass, constructing a coordinate system on the target glass, and determining the track of a scribed line on the target glass according to the coordinate system on the target glass; and generating a plurality of continuous acquisition points on the target glass according to the lineation track, and obtaining the transmissivity corresponding to each acquisition point on the target glass according to the acquisition points. Based on the transparent change of the lineation track, the surface of the glass can be divided into a plurality of areas to be lineated, each area is matched with a corresponding transmissivity value, the laser power is adjusted in real time according to a mathematical model among the transmissivity, the laser power and the lineation depth, and different laser energy is applied to each area to be lineated, so that the lineation accuracy is improved. And the depth of each scribed line is consistent.

Description

Technical Field

[0001] The present invention relates to the technical field of laser scribing, and in particular, to a laser intelligent scribing method, system and device. Background Art

[0002] In the field of glass processing, due to differences in glass production processes, material compositions, and surface treatments, whether the surface of the finished glass is smooth, whether there are scratches, bubbles or defects will affect the propagation of light. Therefore, the transmittance (light transmittance) of each piece of glass at different positions has a certain degree of non-uniformity. The transmittance difference directly affects the efficiency of the laser beam penetrating the glass, resulting in uneven transmission and distribution of laser energy during the laser scribing process.

[0003] Specifically, when the laser beam passes through the glass, part of the laser energy is absorbed or reflected due to the transmittance difference of each part of the glass, resulting in attenuation of the propagation intensity of the beam on the glass. If the laser energy is uneven, it will cause the depth of the scribing trajectory to be inconsistent, and even lead to uneven scribing and unstable quality. However, since the laser scribing depth is directly related to the energy density, if the laser power cannot be adjusted in real time and accurately, the consistency and uniformity of the scribing trajectory on the glass surface cannot be guaranteed, which will affect the subsequent processing quality, resulting in low production efficiency and an increase in the scrap rate. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art, and to propose a laser intelligent scribing method, system and device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: The first aspect of the present invention provides a laser intelligent scribing method, including: Collecting image information of the target glass and constructing a coordinate system on the target glass, wherein the scribing trajectory on the target glass is determined according to the coordinate system on the target glass; Generating a number of continuous acquisition points on the target glass according to the scribing trajectory, and obtaining the transmittance corresponding to each acquisition point on the target glass according to the acquisition points; Then, obtaining the transparency change of the scribing trajectory on the target glass for the transmittance, and further distinguishing a number of areas to be scribed according to the transparency change of the scribing trajectory, wherein each area to be scribed matches a transmittance value; Constructing a mathematical model of the transmittance of the area to be scribed, the glass scribing depth and the laser power according to the transparency change of the area to be scribed, so as to adjust the power intensity of the laser beam irradiated on the target glass in real time.

[0006] Further, the method for collecting the image of the target glass includes: Build a closed lighting environment, place the target glass behind the white light-transmitting medium, ensure there is no gap between the glass and the fabric, and place a uniform surface light source behind the target glass; Use CCD to capture images of white light-transmitting media, and pre-process the acquired images, including noise removal and contrast enhancement; Convert the captured image into a grayscale image so that the bright area of ​​the white light-transmitting medium appears as a higher grayscale value, while the darker part of the glass area appears as a lower grayscale value; Set the threshold to convert the grayscale image into a binary image; The contour of the target glass is extracted using edge detection based on the binary image.

[0007] Furthermore, the method of constructing a coordinate system on the target glass includes: The minimum enclosing rectangle of the contour is used to fit the target glass contour, and the diagonal intersection point of the minimum enclosing rectangle is used as the coordinate origin.

[0008] Furthermore, the method of constructing the mathematical model includes: Get the original energy power P of the laser 0 , obtain the transmittance T of the area to be scribed, where T is the average value measured by adjacent collection points on the target glass. Therefore, the actual laser energy power P entering the target glass T It can be expressed as: ; According to the depth of the line D X The laser energy power P reaching the target glass T Proportional, assuming the line depth D X With P T The following relationship exists: , where k is a constant; Preset the scoring depth D of the target glass target , therefore, D X =D target , then: , and adjusted to: P T =D target / k, due to ,therefore, , the original energy power of the laser is obtained 0 Relationship with transmittance T: .

[0009] Furthermore, the white light-transmitting medium adopts a diffusion plate, and the thickness of the diffusion plate is 1mm-3mm.

[0010] Furthermore, the uniform surface light source adopts an LED light panel.

[0011] Further, in the second aspect of the present invention, a laser intelligent scribing system is provided, which adopts a laser intelligent scribing method described in any one of the first aspects, including: an image acquisition module, wherein the image acquisition module includes: A light source unit, which is used to build an enclosed lighting environment, place the target glass behind a white light-transmitting medium, ensure no gap between the glass and the fabric, and place a uniform surface light source behind the target glass; A photographing unit, which uses a ccd to photograph the image of the white light-transmitting medium and preprocesses the obtained image, including noise removal and contrast enhancement; A grayscale image unit, which is used to convert the photographed image into a grayscale image, so that the bright area of the white light-transmitting medium presents a higher grayscale value, while the darker part of the glass area presents a lower grayscale value; A binary image unit, which is used to set a threshold to convert the grayscale image into a binary image; An edge detection unit, which uses edge detection to extract the contour of the target glass according to the binary image.

[0012] Further, it further includes: A coordinate system module, which is used to fit the contour of the target glass with the minimum circumscribed rectangle of the contour and use the intersection point of the diagonals of the minimum circumscribed rectangle as the coordinate origin; A scribing trajectory module, which is used to determine the scribing trajectory on the target glass according to the coordinate system on the target glass; An acquisition module, which is used to generate a number of continuous acquisition points on the target glass according to the scribing trajectory and obtain the transmittance corresponding to each acquisition point on the target glass according to the acquisition points; A to-be-scribed area module, which is used to obtain the transparency change of the scribing trajectory on the target glass for the transmittance, and then distinguish a number of to-be-scribed areas according to the transparency change of the scribing trajectory; A mathematical model module, which is used to construct a mathematical model of the transmittance of the to-be-scribed area, the glass scribing depth and the laser power according to the transparency change of the to-be-scribed area, so as to adjust the power intensity of the laser beam irradiated on the target glass in real time.

[0013] Further, in the third aspect of the present invention, a laser intelligent scribing device is provided, including: One or more main controllers; A storage device, on which one or more programs are stored; When the one or more programs are executed by the one or more main controllers, the one or more main controllers implement a laser intelligent scribing method as described in the first aspect.

[0014] The beneficial effects of the present invention are as follows: By collecting the image information of the target glass and constructing a coordinate system, the problem of inconsistent scribing depth caused by uneven glass transmittance during the laser scribing process is solved. Specifically, a number of continuous collection points are set on the glass surface according to the scribing trajectory, the transmittance change of each collection point is measured in real time, and then the difference in the transparency of the scribing trajectory on the glass surface is identified. Based on the transparency change, the present invention can divide the glass surface into multiple areas to be scribed, and match corresponding transmittance values for each area. According to the established mathematical model between transmittance, laser power, and scribing depth, the laser power is adjusted in real time, and different laser energies are applied to each area to be scribed, ensuring that the depth of each scribing line is consistent, thereby effectively improving the uniformity and stability of laser scribing, solving the processing quality fluctuation caused by the difference in glass transmittance, and further improving the processing efficiency and product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall process of a laser intelligent scribing method provided in an embodiment of the present invention; Figure 2 It is a flowchart of collecting the image of the target glass in a laser intelligent scribing method provided in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0018] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0020] Embodiment Refer to Figure 1 And Figure 2 , in order to solve the problem of inconsistent scribing depths caused by uneven glass transmittance during the laser scribing process, this embodiment provides a laser intelligent scribing method, including: Collect the image information of the target glass and construct a coordinate system on the target glass. Among them, the scribing trajectory on the target glass is determined according to the coordinate system on the target glass; Generate a number of continuous acquisition points on the target glass according to the scribing trajectory, and obtain the transmittance corresponding to each acquisition point on the target glass according to the acquisition points; Then, for the transmittance, obtain the transparency change of the scribing trajectory on the target glass, and then distinguish several areas to be scribed according to the transparency change of the scribing trajectory. Among them, each area to be scribed matches a transmittance value; According to the transparency change of the area to be scribed, construct a mathematical model of the transmittance of the area to be scribed, the glass scribing depth, and the laser power to adjust the power intensity of the laser beam irradiating on the target glass in real time.

[0021] In this embodiment, in order to more clearly extract the contour of the target glass, the method for collecting the image of the target glass includes: Build a closed illumination environment, place the target glass behind a white light-transmitting medium, ensure that there is no gap between the glass and the fabric, and place a uniform surface light source behind the target glass. At this time, since the light needs to pass through the target glass first and then reach the white light-transmitting medium, the target glass will first absorb or reflect part of the light, and the transmittance is lower than the surrounding air area, resulting in a dark area on the white light-transmitting medium where it contacts the target glass due to the weakening of the received light, while other areas that do not pass through the target glass are not affected by the weakening of the light and present a bright area; Use a CCD to capture an image of the white light-transmitting medium, and preprocess the acquired image, including noise removal and contrast enhancement; Convert the captured image into a grayscale image, so that the bright area of the white light-transmitting medium presents a higher grayscale value, while the darker part of the glass area presents a lower grayscale value; Set a threshold to convert the grayscale image into a binary image. If the grayscale value of a bright area pixel is greater than or equal to the threshold, set the pixel to white. If the grayscale value of a dark area pixel is less than the threshold, set the pixel to black; Extract the contour of the target glass using edge detection based on the binary image. (In the prior art, edge detection includes the Sobel operator: detecting edges by calculating the horizontal and vertical gradients of the image and Canny edge detection.)

[0022] In this embodiment, the method of constructing a coordinate system on the target glass includes: Use the minimum bounding rectangle of the contour to fit the contour of the target glass, and use the intersection point of the diagonals of the minimum bounding rectangle as the coordinate origin.

[0023] In this embodiment, the method of constructing a mathematical model includes: Obtain the original energy power P of the laser 0 , obtain the transmittance T of the area to be scribed, where T is the average value measured at the adjacent acquisition points on the target glass. Therefore, the actual laser energy power P entering the target glass T Can be expressed as: ; According to the scribing depth D X Is proportional to the laser energy power P reaching the target glass T , assuming the scribing depth D X And P T There is the following relationship: , where k is a constant; Preset the scribing depth D of the target glass target , so, D X = D target , then there is: , and adjust to: P T = D target / k, because , therefore, , obtain the relationship between the original energy power P of the laser 0 And the transmittance T: .

[0024] In this embodiment, the white light-transmitting medium uses a diffusion plate (and the diffusion plate can be made of acrylic or pom plastic material), and the thickness of the diffusion plate is 1mm - 3mm.

[0025] In this embodiment, the uniform surface light source adopts an LED light board, and the LED light board can emit a red light source or a white light source.

[0026] In this embodiment, the second aspect of the present invention provides a laser intelligent scribing system, which adopts one of the laser intelligent scribing methods described in the first aspect, including: an image acquisition module, where the image acquisition module includes: A light source unit, which is used to build a closed lighting environment, place the target glass behind the white light-transmitting medium, ensure that there is no gap between the glass and the fabric, and place a uniform surface light source behind the target glass; A photographing unit, which uses a ccd to photograph the image of the white light-transmitting medium and preprocesses the obtained image, including noise removal and contrast enhancement; A grayscale image unit, which is used to convert the photographed image into a grayscale image, so that the bright area of the white light-transmitting medium presents a higher grayscale value, while the darker part of the glass area presents a lower grayscale value; A binary image unit, which is used to set a threshold to convert the grayscale image into a binary image; An edge detection unit, which uses edge detection to extract the contour of the target glass according to the binary image.

[0027] In this embodiment, it further includes: A coordinate system module, which is used to fit the contour of the target glass with the minimum circumscribed rectangle of the contour and use the intersection point of the diagonals of the minimum circumscribed rectangle as the coordinate origin; A scribing trajectory module, which is used to determine the scribing trajectory on the target glass according to the coordinate system on the target glass; An acquisition module, which is used to generate a number of continuous acquisition points on the target glass according to the scribing trajectory and obtain the transmittance corresponding to each acquisition point on the target glass; A to-be-scribed area module, which is used to obtain the transparency change of the scribing trajectory on the target glass for the transmittance, and then distinguish a number of to-be-scribed areas according to the transparency change of the scribing trajectory; A mathematical model module, which is used to construct a mathematical model of the transmittance of the to-be-scribed area, the glass scribing depth, and the laser power according to the transparency change of the to-be-scribed area, so as to adjust the power intensity of the laser beam irradiated on the target glass in real time.

[0028] The specific working process of the present invention is as follows: (1) Collect the image of the target glass First, build a closed lighting environment. Place the target glass behind the white light-transmitting medium, ensuring there is no gap between the glass and the fabric, and place a uniform surface light source behind the target glass. Use a CCD to capture an image of the white light-transmitting medium and preprocess the obtained image, including noise removal and contrast enhancement. Convert the captured image into a grayscale image, making the bright area of the white light-transmitting medium present a higher grayscale value, while the darker part of the glass area presents a lower grayscale value. Set a threshold to convert the grayscale image into a binary image. Use edge detection based on the binary image, such as the Sobel operator or Canny edge detection, to extract the contour of the target glass.

[0029] (2)Construct a coordinate system on the target glass Use the minimum bounding rectangle of the contour to fit the contour of the target glass, and use the intersection point of the diagonals of the minimum bounding rectangle as the coordinate origin.

[0030] (3)Set the acquisition points Use the coordinate system on the target glass to determine the required scribing trajectory on the target glass. Then, generate n consecutive acquisition points on the target glass according to the scribing trajectory, and use a transmissometer to measure the transmittance of each acquisition point on the target glass. Therefore, according to the average value of the measured transmittances of adjacent acquisition points, the scribing trajectory is divided into n - 1 interval segments, corresponding to n - 1 areas to be scribed, and also matching n - 1 transmittance values one by one.

[0031] (4)Adjust the laser energy power according to the transparent change of the interval segments of the scribing trajectory Obtain the original energy power P of the laser 0 , obtain the transmittance T of the area to be scribed, where T is the average value measured between adjacent acquisition points on the target glass. Therefore, the actual laser energy power P T entering the target glass can be expressed as: ; According to the scribing depth D X being proportional to the laser energy power P T reaching the target glass, assuming there is the following relationship between the scribing depth D X and P T : , where k is a constant; Preset the scribing depth D target for the target glass. Therefore, D X = D target , then there is: , and adjust it to: P T = D target / k. Since , therefore, , and obtain the original energy power P of the laser 0Relationship with transmittance T: .

[0032] In summary: Based on the transparent change, the present invention can divide the scribing trajectory on the glass surface into multiple areas to be scribed, and match corresponding transmittance values for each area. According to the established mathematical model between transmittance, laser power, and scribing depth, the laser power is adjusted in real time to apply different laser energies to each area to be scribed, so as to ensure that the depth of each scribing line is consistent.

[0033] Specifically, according to some embodiments of the present disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, some embodiments of the present disclosure include a computer program product that includes a computer program carried on a computer-readable medium, and the computer program contains program codes for executing the methods shown in the flowcharts.

[0034] It should be noted that the computer-readable media described in some embodiments of the present disclosure may be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In some embodiments of the present disclosure, the computer-readable storage medium may be any tangible medium that contains or stores a program, which can be used by or in conjunction with an instruction execution system, apparatus, or device. In some embodiments of the present disclosure, the computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries computer-readable program code. Such a propagated data signal may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium may also be any computer-readable medium other than the computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above. The third aspect of the present invention provides a laser intelligent scribing device, including: one or more main controllers; a storage device, on which one or more programs are stored; when the one or more programs are executed by the one or more main controllers, the one or more main controllers implement a laser intelligent scribing method as described in the first aspect.

[0035] In some embodiments, the processing system may communicate using any currently known or future-developed network protocol, such as HTTP (Hyper Text Transfer Protocol), and may be interconnected with digital data communication in any form or medium (e.g., a communication network). Examples of communication networks include local area networks ("LAN"), wide area networks ("WAN"), the Internet (e.g., the Internet), and end-to-end networks (e.g., ad hoc end-to-end networks), as well as any currently known or future-developed networks.

[0036] The above computer-readable medium may be included in the above electronic device; or may exist separately without being assembled into the electronic device. The above computer-readable medium carries one or more programs, and when the above one or more programs are executed by the electronic device, the electronic device is caused to...

[0037] Computer program code for performing the operations of some embodiments of the present disclosure may be written in one or more programming languages or combinations thereof. The above programming languages include object-oriented programming languages such as Java, Smalltalk, C++, and also include conventional procedural programming languages such as the "C" language or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, executed as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., by connecting through the Internet using an Internet service provider).

[0038] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code that contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than marked in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, may be implemented by a dedicated hardware-based system for performing the specified functions or operations, or may be implemented by a combination of dedicated hardware and computer instructions.

[0039] The functions described above herein may be performed at least in part by one or more hardware logic components. For example, by way of non-limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on a chip (SOCs), complex programmable logic devices (CPLDs), and so on. That is, the fourth aspect of the present invention provides a computer-readable medium having a computer program stored thereon, wherein the program, when executed by a processor, implements a laser intelligent scribing method as described in the first aspect.

[0040] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A laser intelligent scribing method, characterized in that: include: Collecting image information of the target glass and constructing a coordinate system on the target glass, wherein the trajectory of the line drawn on the target glass is determined according to the coordinate system on the target glass; Generate a number of continuous collection points on the target glass according to the scribing track, and obtain the transmittance corresponding to each collection point on the target glass according to the collection points; The transparency change of the scribing track on the target glass is obtained according to the transmittance, and then a number of areas to be scribed are distinguished according to the transparency change of the scribing track, wherein each area to be scribed matches a transmittance value; According to the transparency change of the area to be scribed, a mathematical model of the transmittance of the area to be scribed, the glass scribe depth and the laser power is constructed to adjust the power intensity of the laser beam irradiated on the target glass in real time.

2. A laser intelligent scribing method according to claim 1, characterized in that: Methods for acquiring target glass images include: Build a closed lighting environment, place the target glass behind the white light-transmitting medium, ensure there is no gap between the glass and the fabric, and place a uniform surface light source behind the target glass; Use CCD to capture images of white light-transmitting media, and pre-process the acquired images, including noise removal and contrast enhancement; Convert the captured image into a grayscale image so that the bright area of ​​the white light-transmitting medium appears as a higher grayscale value, while the darker part of the glass area appears as a lower grayscale value; Set the threshold to convert the grayscale image into a binary image; The contour of the target glass is extracted using edge detection based on the binary image.

3. The laser intelligent scribing method according to claim 1, characterized in that: Methods for constructing a coordinate system on the target glass include: The minimum enclosing rectangle of the contour is used to fit the target glass contour, and the diagonal intersection point of the minimum enclosing rectangle is used as the coordinate origin.

4. The laser intelligent scribing method according to claim 1, characterized in that: Methods for constructing mathematical models include: Get the original energy power P0 of the laser and the transmittance T of the area to be scribed, where T is the average value measured by adjacent collection points on the target glass. Therefore, the actual laser energy power P entering the target glass is T It can be expressed as: ; According to the depth of the line D X The laser energy power P reaching the target glass T Proportional, assuming the line depth D X With P T The following relationship exists: , where k is a constant; Preset the scoring depth D of the target glass target , therefore, D X =D target , then: , and adjusted to: P T =D target / k, due to ,therefore, , the relationship between the original energy power P0 of the laser and the transmittance T is obtained: .

5. The laser intelligent scribing method according to claim 2, characterized in that: The white light-transmitting medium adopts a diffusion plate, and the thickness of the diffusion plate is 1mm-3mm.

6. The laser intelligent scribing method according to claim 2, characterized in that: The uniform surface light source adopts an LED light panel.

7. A laser intelligent marking system, characterized in that: A laser intelligent marking method according to any one of claims 1 to 6 is adopted, comprising an image acquisition module, wherein the image acquisition module comprises: A light source unit is used to build a closed lighting environment, place the target glass behind the white light-transmitting medium, ensure that there is no gap between the glass and the fabric, and place a uniform surface light source behind the target glass; A photographing unit, wherein the photographing unit uses a CCD to photograph an image of a white light-transmitting medium and performs preprocessing on the acquired image, including noise removal and contrast enhancement; A grayscale image unit, which is used to convert the captured image into a grayscale image, so that the bright area of ​​the white light-transmitting medium appears as a higher grayscale value, while the darker part of the glass area appears as a lower grayscale value; A binary image unit, wherein the binary image unit is used to set a threshold value to convert a grayscale image into a binary image; An edge detection unit is used to extract the contour of the target glass using edge detection according to the binary image.

8. The laser intelligent marking system according to claim 7, characterized in that: Also includes: A coordinate system module, wherein the coordinate system module is used to fit the target glass contour using the minimum circumscribed rectangle of the contour, and the diagonal fork point of the minimum circumscribed rectangle is used as the coordinate origin; A marking trajectory module, the marking trajectory module is used to determine a marking trajectory on the target glass according to a coordinate system on the target glass; A collection module, the collection module is used to generate a plurality of continuous collection points on the target glass according to the scribing track, and obtain the transmittance corresponding to each collection point on the target glass according to the collection points; A module for the area to be scribed, which is used to obtain the transparency change of the scribing track on the target glass according to the transmittance, and then distinguish a number of areas to be scribed according to the transparency change of the scribing track; The mathematical model module is used to construct a mathematical model of the transmittance of the area to be scribed, the glass scribe depth and the laser power according to the transparency change of the area to be scribed, so as to adjust the power intensity of the laser beam irradiated on the target glass in real time.

9. A laser intelligent marking device, characterized in that: include: One or more master controllers; a storage device having one or more programs stored thereon; When the one or more programs are executed by the one or more main controllers, the one or more main controllers implement a laser intelligent marking method as described in any one of claims 1 to 6.

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