Laser imaging scanning control method and system and related equipment

Abstract

The embodiment of the invention provides a laser imaging scanning control method and system and related equipment, which are used for realizing dynamic adjustment of theoretical scanning intervals of all laser light sources in a laser array and prolonging the overall service life of the laser array. The method provided by the embodiment of the invention comprises the following steps: setting a theoretical scanning interval of each laser light source in a scanning direction, and confirming a first row position Li of each interval, i being a mark number of the laser light source; calculating the deviation value Ki of each laser light source in the scanning direction, wherein Ki = Di-Li; wherein Di is the mounting position of each laser light source in the scanning direction; determining the maximum value Kmax in the Ki, and reversely moving the laser array Kmax to a correction position in the vertical scanning direction; the pixel rows are scanned in sequence from the correction position, and when the current position of each laser light source is located in the corresponding theoretical scanning interval, the corresponding laser light source starts scanning of the current pixel row.

Description

Technical Field

[0001] The present invention relates to the field of data processing technology, and in particular to a laser imaging scanning control method, system and related equipment. Background Art

[0002] Laser imaging refers to controlling the light source array composed of lasers to scan the exposure surface, selectively exposing the pixels on the photosensitive coating, and then developing the exposed photosensitive coating to generate the desired developed image on the photosensitive coating.

[0003] In practical applications, before the laser array scans the exposure surface line by line, it is necessary to allocate a scanning interval for each laser light source. The existing process is difficult to achieve micron-level installation, and the installation error of the laser light source causes the spacing of each laser light source in the vertical direction of scanning to be inconsistent. Therefore, in the related art, a fixed scanning spacing is allocated according to the actual installation spacing of each laser light source. Laser light sources with different installation spacings are allocated different scanning spacings. The larger the installation spacing, the larger the allocated scanning spacing.

[0004] The applicant noted that the fixed scanning spacing is assigned to laser light sources with different installation spacings, and the scanning spacing of each laser light source cannot be adjusted according to demand, which has poor flexibility. In addition, the larger the installation spacing, the larger the assigned scanning spacing, which leads to inconsistent use time of the laser light source and inconsistent life loss of the laser light source, which is not conducive to load balancing. Moreover, the scanning spacing in the related art is determined and fixed according to the installation spacing, and its scanning spacing cannot be adjusted according to the hardware status of the laser light source. In order to solve any of the above problems, it is necessary to improve the existing laser imaging scanning control method. Summary of the invention

[0005] The embodiments of the present invention provide a laser imaging scanning control method, system and related equipment for dynamically adjusting the theoretical scanning interval of each laser light source in a laser array and extending the overall service life of the laser array.

[0006] A first aspect of an embodiment of the present invention provides a laser imaging scanning control method, which may include:

[0007] Set the theoretical scanning interval of each laser light source in the scanning direction and confirm the first line position L of each interval i , i is the number of the laser light source;

[0008] Calculate the deviation value K of each laser light source in the scanning direction i =D i -L i ; where D i is the installation position of each laser light source in the scanning direction;

[0009] Confirm Ki The maximum value K in max , and move the laser array in the reverse direction at least K in the vertical direction of the scan max Arrival at the calibration position;

[0010] The pixel rows are scanned sequentially starting from the correction position, and when the current position of each laser light source is in its corresponding theoretical scanning interval, the corresponding laser light source starts scanning the current pixel row.

[0011] Optionally, as a possible implementation manner, in the embodiment of the present invention, scanning the pixel rows sequentially starting from the correction position may include:

[0012] The laser array is controlled to scan the pixel row at the current position starting from the correction position, and after each row is scanned, it moves one pixel distance in the vertical direction of the scan, and continues to scan the pixel row at the next position, and the cycle is repeated until each laser light source scans its own theoretical scanning interval.

[0013] Optionally, as a possible implementation manner, the laser imaging scanning control method in the embodiment of the present invention may further include:

[0014] A theoretical scanning interval of equal length is allocated to each laser light source in turn.

[0015] Optionally, as a possible implementation manner, the laser imaging scanning control method in the embodiment of the present invention may further include:

[0016] Obtain output power attenuation parameters of each laser light source;

[0017] The length of the theoretical scanning interval of each laser light source is adjusted according to the output power parameter; wherein the length of the theoretical scanning interval of the laser light source whose attenuation exceeds the threshold value is relatively reduced.

[0018] Optionally, as a possible implementation manner, in the embodiment of the present invention, scanning the pixel rows sequentially starting from the correction position may include:

[0019] Starting from the correction position, after each pixel row is scanned, the laser array is moved as a whole in the vertical direction of the scan by a pixel row distance to reach the next pixel row position.

[0020] A second aspect of an embodiment of the present invention provides a laser imaging scanning control system, which may include:

[0021] Setting module, setting the theoretical scanning interval of each laser light source in the scanning direction, and confirming the first line position L of each interval i , i is the number of the laser light source;

[0022] Calculation module, used to calculate the deviation value K of each laser light source in the scanning direction i =D i -L i ; where D i is the installation position of each laser light source in the scanning direction;

[0023] Correction module, confirm K i The maximum value K in max , and move the laser array in the reverse direction at least K in the vertical direction of the scan max Arrival at the calibration position;

[0024] The control module scans the pixel rows in sequence starting from the correction position. When the current position of each laser light source is in its corresponding theoretical scanning interval, the corresponding laser light source starts scanning the current pixel row.

[0025] Optionally, as a possible implementation, the control module in the embodiment of the present application may include:

[0026] The control unit controls the laser array to scan the pixel row at the current position starting from the correction position, moves one pixel distance in the vertical direction of the scan after each scan, and continues to scan the pixel row at the next position, repeating the cycle until each laser light source scans its own theoretical scanning interval.

[0027] Optionally, as a possible implementation, the setting module in the embodiment of the present application may include: a setting unit that allocates theoretical scanning intervals of equal length to each laser light source.

[0028] Optionally, as a possible implementation, the setting module in the laser imaging scanning control system in the embodiment of the present application may include:

[0029] An acquisition unit, for acquiring output power attenuation parameters of each laser light source;

[0030] The adjusting unit adjusts the length of the theoretical scanning interval of each laser light source according to the output power parameter; wherein the length of the theoretical scanning interval of the laser light source whose attenuation exceeds the threshold value is relatively reduced.

[0031] A third aspect of an embodiment of the present invention provides a computer device, the computer device comprising a processor, the processor being configured to implement the steps in the first aspect and any possible implementation manner of the first aspect when executing a computer program stored in a memory.

[0032] A fourth aspect of an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps in the first aspect and any possible implementation of the first aspect are implemented.

[0033] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0034] In an embodiment of the present invention, the theoretical scanning interval of each laser light source is set in advance according to demand, and then the laser array is corrected according to the deviation value of each laser light source in the scanning direction. The laser light source corresponding to the maximum deviation value in the laser array after adjustment will not miss the first row of pixels in its theoretical scanning interval, and all pixel rows of the allocated theoretical scanning interval can be scanned. Therefore, in an embodiment of the present application, the theoretical scanning interval of each laser light source does not need to be affected by the installation error, and the theoretical scanning interval can be adjusted on demand. Preferably, when the theoretical scanning intervals of each laser light source are equal, the output balance of each laser light source can be achieved, thereby improving the overall service life of the laser array. Preferably, by reducing the scanning interval of the laser light source with severe attenuation, not only the imaging quality can be improved, but also the overall service life of the laser array can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of an embodiment of a laser imaging scanning control method in an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of the decomposition of scanning steps in the related art;

[0037] Figure 3 It is a schematic diagram of the decomposition of scanning steps in a specific embodiment of the present invention;

[0038] Figure 4 FIG. 1 is a schematic diagram of an embodiment of a computer device in an embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 should fall within the scope of protection of the present invention.

[0040] The terms "first", "second", "third", "fourth", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0041] In the description of this application, unless otherwise specified, "multiple" means two or more. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components.

[0042] For ease of understanding, the laser array in the embodiment of the present invention is described below. The laser array is composed of laser light sources arranged in a non-overlapping manner in the scanning vertical direction. The position distribution in the scanning direction may overlap or may not overlap. The specific process is described below. Figure 1 , an embodiment of a laser imaging scanning control method in an embodiment of the present invention may include:

[0043] S101: Calculate the deviation value K of each laser light source in the scanning direction i =D i -L i ;

[0044] Due to the installation error of the laser light source, the spacing between the laser light sources in the vertical direction of the scanning direction may not be consistent. Figure 2 The six laser light sources are randomly spaced in the vertical direction of the scanning direction, which are 4, 9, 8, 5, and 3, respectively, and are not equal. In the related art, the scanning steps of each laser are decomposed on the far right, and the scanning steps with grayscale are the actual effective scanning steps. The sum of the lengths of the effective scanning steps is the length of the scanning interval, which is 4, 9, 8, 5, and 3, respectively.

[0045] In the embodiment of the present application, a theoretical scanning interval in the scanning direction is pre-set for each laser light source (the theoretical scanning interval can be adjusted according to needs), and the first row position L of each theoretical scanning interval is recorded. i, and then obtain the installation position D of each laser light source in the scanning direction i , i is the label of the laser light source.

[0046] After getting D i With L i Afterwards, the deviation value K of each laser light source in the scanning direction can be calculated i =D i -L i . Choose Figure 2 In the distribution scenario of the six laser light sources shown, with the first laser light source as the starting point coordinate, the actual installation position coordinates of each laser light source are: 0, 4, 13, 21, 26, 29. Assuming that the theoretical scanning intervals allocated to each laser light source are equal and the length of the theoretical scanning interval is 6, the first row position coordinates of the theoretical scanning interval are 0, 6, 12, 18, 24, 30. The deviation values ​​are: K1 = 0-0 = 0; K2 = 4-6 = -2; K3 = 13-12 = 1; K4 = 21-18 = 3; K5 = 26-24 = 2; K6 = 29-30 = -1.

[0047] It can be understood that in the above example, preferably, the theoretical scanning intervals assigned to each laser light source are equal, so that the scanning pixel rows of each laser light source are equal, load balancing is achieved, and excessive use of a single laser light source is prevented, resulting in uneven life consumption of each laser light source. In practical applications, the theoretical scanning intervals assigned to each laser light source may be unequal, and can even be adjusted dynamically. For example, the output power attenuation parameters of each laser light source can be obtained; the length of the theoretical scanning interval of each laser light source is adjusted according to the output power parameters. Among them, the theoretical scanning interval of the laser light source whose attenuation exceeds the threshold is relatively reduced, and can even be reduced to zero, that is, a certain laser light source is completely damaged, and the entire laser array can also use adjacent laser light sources to fill the vacancy, thereby realizing flexible scheduling of laser light sources.

[0048] S102: Confirm K i The maximum value K in max , and move the laser array in the reverse direction K in the vertical direction of the scan max Arrival at the calibration position;

[0049] After obtaining the deviation value K of each laser light source in the scanning direction i Afterwards, in the present embodiment, it can be confirmed that K i The maximum value K in max , in order to maximize K max The corresponding laser light source does not miss the first row of pixels in its theoretical scanning interval. It is necessary to move the laser array in the reverse direction at least K in the vertical direction of the scanning. maxAfter the adjustment, the laser light source corresponding to the maximum deviation value in the laser array will not miss the first row of pixels in its theoretical scanning interval, and all pixel rows in the allocated theoretical scanning interval can be scanned.

[0050] S103: Scanning pixel rows in sequence starting from the calibration position, when the current position of each laser light source is in its corresponding theoretical scanning interval, the corresponding laser light source starts scanning the current pixel row.

[0051] After reaching the calibration position, the laser array is controlled to scan the pixel rows in sequence starting from the calibration position. In the specific scanning process, after each pixel row is scanned, the laser array is moved as a whole by a pixel row distance in the vertical direction of the scan to reach the next pixel row position. After each movement of the laser array, it is necessary to determine whether the current position of each laser light source is in the preset theoretical scanning interval. When the current position of each laser light source is in its corresponding theoretical scanning interval, the corresponding laser light source starts scanning the current pixel row.

[0052] For example, Figure 3 As shown, Figure 2 The laser light sources (lasers) shown are allocated equal theoretical exposure areas, and the rightmost sequence is a schematic diagram of the number of steps (indicated as 11 steps in the figure) of movement of each laser light source in the vertical direction of scanning (i.e., the vertical direction in the figure, and the scanning direction is the horizontal direction) after calibration, wherein the number of steps marked with shadows is the effective number of steps when the current position of each laser light source is in its corresponding theoretical scanning interval, and each laser light source scans the current pixel row only when the corresponding laser light source is at a valid step number, ultimately making the actual exposure area of ​​each laser the same as the length and position of the theoretical exposure area.

[0053] It can be seen from the above disclosure that in various embodiments of the present application, the theoretical scanning interval of each laser light source is set in advance according to the needs, and then the laser array is corrected according to the deviation value of each laser light source in the scanning direction. The laser light source corresponding to the maximum deviation value in the laser array after adjustment will not miss the first row of pixels in its theoretical scanning interval, and all pixel rows of the allocated theoretical scanning interval can be scanned. Therefore, in the embodiments of the present application, the theoretical scanning interval of each laser light source does not need to be affected by the installation error, and the theoretical scanning interval can be adjusted on demand. Preferably, when the theoretical scanning intervals of each laser light source are equal, the output balance of each laser light source can be achieved, and the overall service life of the laser array can be improved. Preferably, by reducing the scanning interval of the laser light source with severe attenuation, not only the imaging quality can be improved, but also the overall service life of the laser array can be improved.

[0054] The present application also provides a laser imaging scanning control system, which may include:

[0055] Setting module, setting the theoretical scanning interval of each laser light source in the scanning direction, and confirming the first line position L of each interval i , i is the number of the laser light source;

[0056] Calculation module, used to calculate the deviation value K of each laser light source in the scanning direction i =D i -L i ; where D i is the installation position of each laser light source in the scanning direction;

[0057] Correction module, confirm K i The maximum value K in max , and move the laser array in the reverse direction K in the scanning direction max Arrival at the calibration position;

[0058] The control module scans the pixel rows in sequence starting from the correction position. When the current position of each laser light source is in its corresponding theoretical scanning interval, the corresponding laser light source starts scanning the current pixel row.

[0059] Optionally, as a possible implementation, the control module in the embodiment of the present application may include:

[0060] The control unit controls the laser array to scan the pixel row at the current position starting from the correction position, moves one pixel distance in the vertical direction of the scan after each scan, and continues to scan the pixel row at the next position, repeating the cycle until each laser light source scans its own theoretical scanning interval.

[0061] Optionally, as a possible implementation, the setting module in the embodiment of the present application may include: a setting unit that allocates theoretical scanning intervals of equal length to each laser light source.

[0062] Optionally, as a possible implementation, in the laser imaging scanning control system in the embodiment of the present application, the setting module may include:

[0063] An acquisition unit, for acquiring output power attenuation parameters of each laser light source;

[0064] The adjustment unit adjusts the length of the theoretical scanning interval of each laser light source according to the output power parameter; wherein the theoretical scanning interval of the laser light source whose attenuation exceeds the threshold is relatively reduced.

[0065] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0066] The laser imaging scanning control system in the embodiment of the present invention is described above from the perspective of modular functional entities. Figure 4 , the computer device in the embodiment of the present invention is described below from the perspective of hardware processing:

[0067] The computer device 1 may include a memory 11, a processor 12 and an input / output bus 13. The processor 12 implements the above Figure 1 The steps in the method embodiment shown are, for example, Figure 1 Alternatively, when the processor executes the computer program, the functions of the modules or units in the above-mentioned device embodiments are realized.

[0068] The memory 11 includes at least one type of readable storage medium, and the readable storage medium includes a flash memory, a hard disk, a multimedia card, a card-type memory (for example, an SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, etc. In some embodiments, the memory 11 may be an internal storage unit of the computer device 1, such as a hard disk of the computer device 1. In other embodiments, the memory 11 may also be an external storage device of the computer device 1, such as a plug-in hard disk equipped on the computer device 1, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. Further, the memory 11 may also include both an internal storage unit of the computer device 1 and an external storage device. The memory 11 may not only be used to store application software and various types of data installed in the computer device 1, such as the code of a computer program, etc., but may also be used to temporarily store data that has been output or is to be output.

[0069] In some embodiments, the processor 12 may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor or other data processing chip, and is used to run program codes or process data stored in the memory 11, such as executing a computer program.

[0070] The input / output bus 13 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc.

[0071] Furthermore, the computer device may also include a wired or wireless network interface 14. The network interface 14 may optionally include a wired interface and / or a wireless interface (such as a WI-FI interface, a Bluetooth interface, etc.), which is usually used to establish a communication connection between the computer device 1 and other electronic devices.

[0072] Optionally, the computer device 1 may also include a user interface, which may include a display (Display), an input unit such as a keyboard (Keyboard), and optionally, the user interface may also include a standard wired interface and a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, and an OLED (Organic Light-Emitting Diode) touch device, etc. The display may also be appropriately referred to as a display screen or a display unit, which is used to display information processed in the computer device 1 and to display a visual user interface.

[0073] Figure 4 Only the computer device 1 having components 11-14 and a computer program is shown, and those skilled in the art will understand that Figure 4 The structure shown does not constitute a limitation on the computer device 1, and may include fewer or more components than shown in the figure, or combine certain components, or arrange the components differently.

[0074] The present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the following can be achieved: Figure 1 The steps in the method embodiment shown are, for example, Figure 1 Alternatively, when the processor executes the computer program, the functions of the modules or units in the above-mentioned device embodiments are realized.

[0075] In the several embodiments provided in the present application, it should be understood that the disclosed systems, modules and units can be implemented in other ways. For example, the system embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0076] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0077] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0078] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0079] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser imaging scanning control method, characterized in that: A laser array consisting of laser light sources arranged non-overlappingly in the vertical direction for scanning, including: Set the theoretical scanning interval of each laser light source in the scanning direction and confirm the first line position L of each interval i , i is the number of the laser light source; Calculate the deviation value K of each laser light source in the scanning direction i =D i -L i ; where D i is the installation position of each laser light source in the scanning direction; Confirm K i The maximum value K in max , and move the laser array in the reverse direction at least K in the vertical direction of the scan max Arrival at the calibration position; The pixel rows are scanned sequentially starting from the correction position, and when the current position of each laser light source is in its corresponding theoretical scanning interval, the corresponding laser light source starts scanning the current pixel row.

2. The method according to claim 1, characterized in that Scanning pixel rows sequentially starting from the correction position includes: The laser array is controlled to scan the pixel row at the current position starting from the correction position, and after each row is scanned, it moves one pixel distance in the vertical direction of the scan, and continues to scan the pixel row at the next position, and the cycle is repeated until each laser light source scans its own theoretical scanning interval.

3. The method according to claim 1 or 2, characterized in that: Set the theoretical scanning range of each laser light source in the scanning direction, including: Each laser source is assigned a theoretical scanning interval of equal length.

4. The method according to claim 1 or 2, characterized in that: Set the theoretical scanning range of each laser light source in the scanning direction, including: Obtain output power attenuation parameters of each laser light source; The length of the theoretical scanning interval of each laser light source is adjusted according to the output power parameter; wherein the length of the theoretical scanning interval of the laser light source whose attenuation exceeds the threshold value is relatively reduced.

5. A laser imaging scanning control system, characterized in that: include: Setting module, setting the theoretical scanning interval of each laser light source in the scanning direction, and confirming the first line position L of each interval i , i is the number of the laser light source; Calculation module, used to calculate the deviation value K of each laser light source in the scanning direction i =D i -L i ; where D i is the installation position of each laser light source in the scanning direction; Correction module, confirm K i The maximum value K in max , and move the laser array in the reverse direction at least K in the vertical direction of the scan max Arrival at the calibration position; The control module scans the pixel rows in sequence starting from the correction position. When the current position of each laser light source is in its corresponding theoretical scanning interval, the corresponding laser light source starts scanning the current pixel row.

6. The system according to claim 5, characterized in that The control module comprises: The control unit controls the laser array to scan the pixel row at the current position starting from the correction position, moves one pixel distance in the vertical direction of the scan after each scan, and continues to scan the pixel row at the next position, repeating the cycle until each laser light source scans its own theoretical scanning interval.

7. The system according to claim 6 or 5, characterized in that: Setup module, including: The unit is set to allocate a theoretical scanning interval of equal length to each laser light source.

8. The system according to claim 6 or 5, characterized in that: Setup module, including: An acquisition unit, for acquiring output power attenuation parameters of each laser light source; The adjusting unit adjusts the length of the theoretical scanning interval of each laser light source according to the output power parameter; wherein the length of the theoretical scanning interval of the laser light source whose attenuation exceeds the threshold value is relatively reduced.

9. A computer device, characterized in that: The computer device comprises a processor, and the processor is configured to implement the method according to any one of claims 1 to 4 when executing a computer program stored in a memory.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 4 is implemented.

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