CN116985541A - Distance-based UV lamp power adjustment method, device, equipment and storage medium - Google Patents

Abstract

The application belongs to the technical field of printing, and particularly provides a distance-based UV lamp power adjusting method, device and equipment and a storage medium. The method comprises the following steps: determining the amount of printing ink of each printing area; determining the power weight of each light source for each printing area; the output power of the light source is determined based on the amount of ink printed for each print zone and the power weight of each light source for each print zone. The device comprises: a printing ink amount determining module; a power weight determining module; and an output power determining module. According to the embodiment of the application, the output power of the light source is determined through the printing ink quantity of each printing area and the power weight of the light source for each printing area, so that the output power of the light source is better adapted to the printing ink quantity of each printing area and the distance between the light source and each printing area, the curing degree of the ink of each printing area can be maximally close to the ideal degree, the curing channel is restrained, and the quality of a printed product is improved.

Description

Distance-based UV lamp power adjustment method, device, equipment and storage medium

This application is a divisional application of the invention patent application submitted on October 21, 2020, with the invention name "UV lamp power adjustment method, device, equipment and storage medium" and the application number 202011134722.8.

Technical field

The present invention relates to the field of printing technology, and in particular to a distance-based UV lamp power adjustment method, device, equipment and storage medium.

Background technique

UV printer (Ultraviolet LED InkjetPrinter) uses UV (Ultraviolet, UV for short) to print. Under the ultraviolet radiation emitted by the UV lamp, the UV ink is cured. The resulting printed matter has a clean layout, saturated colors, and exquisite images. It has high gloss, is particularly suitable for high-speed printing, and has good adsorption and mechanical properties for various printing media. Therefore, UV printing is widely used today.

In the existing technology, UV lamps are usually used to irradiate the UV ink on the printing medium indiscriminately, that is, all light sources on the UV lamp use the same power to radiate the UV ink on the entire printing medium. However, due to the various printing areas on the printing medium, The ink volume is different, and the technical solution of indiscriminate irradiation results in different degrees of curing of UV ink, resulting in uneven image quality on the printing medium, that is, there is a technical problem with the curing path.

Contents of the invention

In view of this, embodiments of the present invention provide a distance-based UV lamp power adjustment method, device, equipment and storage medium to solve, to a certain extent, the technical problem of curing channels in the prior art.

In a first aspect, embodiments of the present invention provide a distance-based UV lamp power adjustment method. The UV lamp includes multiple light sources, and the UV lamp is used to illuminate at least one printing area. The method includes:

S10: Obtain printing parameters, and determine the amount of printing ink in each printing area according to the printing parameters;

S20: Determine the power weight of each light source for each printing area based on the distance between each light source and each printing area;

S30: Determine the output power of each light source according to the power weight of each light source for each printing area and the amount of printing ink in each printing area;

Among them, in S20, it also includes:

S24: Get the distance threshold;

S25: Compare the distance between each light source and each printing area and the distance threshold;

S26: If the distance between the light source and the printing area is less than the distance threshold, determine the power weight according to the distance; if the distance between the light source and the printing area is greater than or equal to the distance threshold, skip the step of determining the power weight based on the distance.

Preferably, the steps S24 to S25 are replaced by the following steps:

S21: Obtain the weight threshold;

S22: Compare the power weight with the weight threshold;

S23: Adjust the power weight that is less than or equal to the weight threshold to zero.

Preferably, in S10, it includes:

S11: Perform fitting processing on the amount of printing ink in each of the printing areas to obtain a fitting curve or a fitting straight line;

S12: Re-determine the amount of printing ink in each printing area according to the fitting curve or the fitting straight line.

Preferably, the UV lamp includes n light sources, and the UV lamp is used to illuminate m printing areas. n and m are both positive integers. In S20, the power weight satisfies the first conversion formula, and the first The conversion formula is:

Among them, W _ij represents the power weight of the j-th light source for the i-th printing area, d _ij represents the distance between the j-th light source and the i-th printing area, A and k are both positive real numbers, 1≤k, i and j are both positive integers, 1≤i≤m, 1≤j≤n.

Preferably, the S20 includes:

Establish a lookup table based on the one-to-one mapping relationship between d _ij and W _ij ;

The distance between each light source and each printing area is obtained, and using the distance as an index, the lookup table is retrieved to obtain the corresponding power weight.

Preferably, the UV lamp includes n light sources, and the UV lamp is used to illuminate m printing areas. n and m are both positive integers. In S30, the output power of the light source satisfies the second conversion formula. The second conversion formula is:

Among them, P _j represents the output power of the j-th light source, D _i represents the printing ink volume of the i-th printing area, W _ij represents the power weight of the j-th light source for the i-th printing area, i and j are both positive integers. , 1≤i≤m, 1≤j≤n.

Preferably, the UV lamp includes n light sources, n is a positive integer. In S30, the output power of the light source satisfies a third conversion formula, and the third conversion formula is:

P _j ＝D _{j_near} *W _{j_near}

Among them, P _j represents the output power of the j-th light source, D _{j_near} represents the amount of printing ink in the printing area closest to the j-th light source, W _{j_near} represents the power weight of the j-th light source in the printing area closest to it, and j is Positive integer, 1≤j≤n.

In a second aspect, embodiments of the present invention provide a distance-based UV lamp power adjustment device. The UV lamp includes multiple light sources, and the UV lamp is used to illuminate at least one printing area. The device includes:

A printing ink amount determination module, the printing ink amount determining module is used to obtain printing parameters, and determine the printing ink amount of each printing area according to the printing parameters;

A power weight determination module, the power weight determination module is configured to determine the power weight of each of the light sources for each of the printing areas according to the distance between each of the light sources and each of the printing areas; further including: obtaining a distance threshold ; Compare the distance between each of the light sources and each of the printing areas and the distance threshold; if the distance between the light source and the printing area is less than the distance threshold, determine the distance based on the distance. If the distance between the light source and the printing area is greater than or equal to the distance threshold, the step of determining the power weight based on the distance is skipped.

An output power determination module is configured to determine the output power of each light source according to the power weight of each light source for each printing area and the amount of printing ink in each printing area.

In a third aspect, embodiments of the present invention provide a printing device. The printing device further includes at least one processor, at least one memory, and computer program instructions stored in the memory. When the computer program instructions are When the processor is executed, any one of the methods described in the first aspect is implemented.

In a fourth aspect, embodiments of the present invention provide a storage medium on which computer program instructions are stored. When the computer program instructions are executed by a processor, any one of the methods described in the first aspect is implemented.

Description of drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings required to be used in the embodiments of the present invention will be briefly introduced below. For those of ordinary skill in the art, without exerting creative efforts, they can also Other drawings can be obtained based on these drawings, and these are all within the protection scope of the present invention.

FIG. 1 is a schematic diagram of solidifying ink on a printing medium according to an embodiment of the present invention.

Figure 2 is a schematic flowchart of a UV lamp power adjustment method provided by an embodiment of the present invention.

FIG. 3A is a schematic diagram for determining the amount of printing ink provided by an embodiment of the present invention.

FIG. 3B is another schematic diagram for determining the amount of printing ink provided by an embodiment of the present invention.

Figure 4 is a schematic flowchart of a method for determining power weight provided by an embodiment of the present invention.

FIG. 5 is a schematic flowchart of another method for determining power weight provided by an embodiment of the present invention.

FIG. 6 is a schematic flowchart of a method for determining the amount of printing ink provided by an embodiment of the present invention.

FIG. 7A is a schematic diagram of linear fitting of printing ink amount according to an embodiment of the present invention.

FIG. 7B is a schematic diagram of curve fitting for printing ink amount according to an embodiment of the present invention.

Figure 8 is a schematic structural diagram of a power adjustment device for a UV lamp provided by an embodiment of the present invention.

Figure 9 is a schematic structural diagram of a printing device provided by an embodiment of the present invention.

Detailed ways

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are configured only to explain the invention and not to limit the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment. Without further limitation, an element defined by the statement "comprising..." does not exclude the presence of additional identical elements in a process, method, article, or device that includes the stated element.

It should be noted that in this article, the words "UV ink", "UV ink", "ink", "ink" and "varnish" can usually be used interchangeably. The words "irradiation" and "radiation" are also often used interchangeably.

Please refer to Figure 1, which is a schematic diagram of UV lamp curing ink on multiple printing areas.

The printing medium 120 includes a plurality of printing areas, namely printing area 1, printing area 2 and printing area 3.

The nozzle 130 is used to eject ink on the printing medium 120. The nozzle 130 includes 9 nozzles. For convenience of description, the nozzles are numbered according to their height direction (ie, the top-to-bottom direction as shown in FIG. 1). Among them, nozzles No. 1-3 eject ink in printing area 1, nozzles No. 4-6 eject ink in printing area 2, and nozzles No. 7-9 eject ink in printing area 3.

The UV lamp 110 includes multiple light sources, namely light source 1, light source 2, light source 3 and light source 4. The four light sources are used to emit light with specific wavelengths (usually invisible light, such as ultraviolet light) to radiate the ink on the printing medium 120. To achieve the technical effect of varnish curing.

In most application scenarios, the amount of printing ink in printing area 1, printing area 2, and printing area 3 is not equal. However, the existing technology uses undifferentiated irradiation to uniformly radiate the above three printing areas, that is, Light source 1, light source 2, light source 3 and light source 4 radiate the above three printing areas with equal output power, which causes a technical problem that the ink curing degree in the above three printing areas is different, resulting in poor printing quality on the printing medium 120. Uniform, that is, there is a solidification path. At the same time, the existing technology usually drives UV lamps at maximum output power, which consumes a lot of energy.

In this regard, the present invention proposes a UV lamp power adjustment method, device, equipment and storage medium to solve the technical problem of the curing channel to a certain extent.

Please refer to FIG. 2 , which is a flowchart of a UV lamp power adjustment method provided by an embodiment of the present invention. The method includes the following steps.

S10: Obtain printing parameters, and determine the amount of printing ink in each printing area according to the printing parameters;

S20: Determine the power weight of each light source for each printing area according to the distance between each light source and each printing area;

S30: Determine the output power of each light source according to the power weight of each light source for each printing area and the amount of printing ink in each printing area.

Wherein, the UV lamp includes multiple light sources, and the UV lamp is used to illuminate at least one printing area.

The printing parameters include one or more of image dot matrix data, printing mode, feathering height, and step distance.

Printing modes include Onepass printing mode, multi-Pass scanning printing mode and single-Pass scanning printing mode.

Multi-Pass scanning printing means that each unit of the printed image must be interpolated multiple times before printing is complete. Each unit is composed of multiple pixels. For example, in 2Pass scanning printing, each unit is composed of 2 pixels. In 3Pass scanning printing, For scanning and printing, each unit consists of 3 pixels. Multi-Pass scanning printing has low efficiency and small output, but it is cheap and suitable for small batch and intermittent production. Wide-format printing products are realized through nozzle splicing or continuous multi-pass printing. The multi-pass scanning printing mode is divided according to the number of times the nozzle scans the same area, that is, the number of passes. For example, a printing mode that requires 2 scans to complete the printing is a 2Pass printing mode, a printing mode that requires 4 scanning times to complete the printing is a 4Pass printing mode, etc.

Single Pass scan printing means that each unit of the printed image only needs to be scanned once to complete the printing.

Onepass printing refers to scanning multiple nozzles side by side so that the printed image is printed in one go. Onepass printing has the advantages of high efficiency and large output, and is suitable for large-volume and continuous production methods.

Unless otherwise specified, the single-scan printing referred to in this application refers to the nozzle performing one-scan printing. For example, in the 4Pass printing mode, the printing process of the 1st Pass or the 2nd Pass is a single scan printing process. If it is Onepass printing, single-scan printing means that the nozzle completes the process of printing the image in one scan.

During a single scan printing process, the nozzle prints ink on the printing medium while moving along the scanning direction (usually orthogonal to the height direction of the nozzle) to form a corresponding print image. Therefore, based on the printing mode, the ink output volume of each nozzle, and the corresponding relationship between each nozzle and the printing area in the nozzle, the printing ink volume of each printing area can be determined. Among them, the ink output volume of each nozzle can be determined by the image dot matrix data. In particular, if feathering processing is also performed, the ink output volume of each nozzle can be determined based on the image dot matrix data and feathering height. The amount of printing ink in the printing area referred to in the embodiment of the present invention refers to the average amount of printing ink in the printing area.

For ease of understanding, please refer to FIG. 3A . The nozzle 130 includes a total of 9 nozzles, which are marked as nozzles No. 1 to No. 9 in order from top to bottom in FIG. 3A . In a single scan printing, the ink output amounts of the No. 1 to No. 9 nozzles are Y1, Y2,..., Y9 respectively.

As mentioned above, nozzles No. 1 to 3 eject ink in the printing area 1, nozzles No. 4 to 6 eject ink in the printing area 2, and nozzles No. 7 to 9 eject ink in the printing area 3. Therefore, the amount of printing ink in printing area 1 is The amount of printing ink in printing area 2 is/> The amount of printing ink in printing area 3 is/>

In the embodiment of the present invention, if a printing area is printed by only one nozzle for ink ejection, the amount of printing ink in the printing area is equal to the ink output amount of the nozzle.

In another embodiment of the present invention, another method for determining the amount of printing ink in the multi-pass printing scanning mode is particularly provided. Please refer to Figure 3B. In the multi-pass scanning printing mode, the nozzle steps PassH each time in the vertical downward direction in Figure 3B, where PassH represents the stepping distance. When performing 3rd Pass printing, the printing area 1 includes the ink of the 1st Pass printing, the ink of the 2nd Pass printing, and the ink of the 3rd Pass printing. Therefore, the amount of printing ink in printing area 1 is The amount of printing ink in printing area 2 is/> ;The amount of printing ink in printing area 3 is/> . In this embodiment, the printing ink amount is the cumulative printing ink amount in the printing area, so that the ink amount of multiple interpolations of multiple passes is taken into account to improve the adaptation of the output power and the printing ink amount in the subsequent processing. degree.

The distance between the light source and the printing area refers to the distance between the center position of the light source and the center position of the printing area. In another embodiment of the present invention, the distance between the light source and the printing area may also be the shortest distance between the light source and the printing area. In other embodiments of the present invention, the distance between the light source and the printing area may be the distance between any point of the light source and any point of the printing area.

In S20, the distances between each light source and each printing area are different. Different distances correspond to different power weights, and the power weights are positive real numbers. In an embodiment of the present invention, the power weight is less than or equal to 1. In a preferred embodiment of the present invention, the distance between the light source and the printing area has an inverse proportional relationship with the power weight, that is, the greater the distance, the smaller the power weight.

Therefore, according to the power weight of the light source relative to each printing area and the amount of printing ink in each printing area, the output power of each light source can be determined respectively. In one implementation, the output power of any light source is equal to the sum of the products of the amount of printing ink in i printing areas and the power weight of the light source for the i printing areas among all printing areas. Taking the three printing areas shown in the previous embodiment as an example, the value range of i is 1≤i≤3, where i is a positive integer. For example, the output power of light source 1 is equal to the product of the power weight of light source 1 for printing area 1 and the amount of printing ink in printing area 1. Alternatively, the output power of the light source 2 is equal to the sum of the product of the power weight of the light source 2 for the printing area 2 and the amount of printing ink in the printing area 2 and the product of the power weight of the light source 2 for the printing area 3 and the amount of printing ink in the printing area 3. Alternatively, the output power of light source 3 is equal to the product of the power weight of light source 3 for printing area 1 and the amount of printing ink in printing area 1, the product of the power weight of light source 3 for printing area 2 and the amount of printing ink in printing area 2, the product of light source 3 The sum of the products of the power weight of printing area 3 and the amount of printing ink in printing area 3.

The embodiment of the present invention determines the amount of printing ink in each printing area through printing parameters, and determines the power weight of the light source for the printing area based on the distance between the light source and the printing area. Finally, the amount of printing ink and the power weight determine the power weight of each light source. Output Power. Since the amount of printing ink in each printing area is different, the output power of each light source of the UV lamp in the embodiment of the present invention is adjusted according to the amount of printing ink in each printing area. During the curing process, different output powers are used for different printing inks. A certain amount of printing area is cured, so that although the amount of printing ink in each printing area is different, the output power of each light source of the UV lamp can be adapted to the amount of printing ink in each printing area, thereby accurately curing each printing area. In this way, the curing degree of the ink in each printing area can be as close as possible to the ideal degree, thereby suppressing the curing path and greatly improving the quality of the printed product. In addition, since the distance between the light source and each printing area is different, the output power of each light source of the UV lamp in the embodiment of the present invention is adjusted according to the distance between each light source and the printing area, and different methods are used during the curing process. The output power cures printing areas at different distances from the light source, so that although the distance between the light source and the printing area is different, the output power of each light source of the UV lamp can be adapted to the distance of each printing area relative to the light source. In this way, each printing area is accurately cured, so that the curing degree of the ink in each printing area can be as close to the ideal degree as possible, thereby suppressing the curing path and greatly improving the quality of the printed product.

In one embodiment of the present invention, the UV lamp includes n light sources, and the UV lamp is used to illuminate m printing areas. n and m are both positive integers. In the aforementioned step S20: according to each of the light sources and each The distance between the printing areas determines the power weight of each light source for each printing area, and the power weight satisfies the first conversion formula, and the first conversion formula is:

Among them, W _ij represents the power weight of the j-th light source for the i-th printing area, d _ij represents the distance between the j-th light source and the i-th printing area, A and k are both positive real numbers, and i and j are both Positive integer, 1≤k, 1≤i≤m, 1≤j≤n.

For ease of understanding, please continue to refer to Figure 1. Taking light source 1 and printing area 1 as an example, the power weight of light source 1 for printing area 1 is:

Among them, W ₁₁ represents the power weight of light source 1 to printing area 1, and d ₁₁ represents the distance between light source 1 and printing area 1.

Among them, due to differences in inks, printing media, UV lamps, etc., the values of A and k may be different. Therefore, based on specific inks, specific printing media, and specific UV lamps, the optimal values of A and k can be determined by printing a large number of test images, and the values of A and k can be continuously optimized in the continuous iteration of the product.

For example, a large number of test images are obtained through the aforementioned method, and each test image corresponds to a specific set of A and k values. Use the test image as a sample to perform machine learning on an integrated circuit with a training function (such as TPU, GPU, FPGA) to obtain a specific model. Afterwards, based on the integrated circuit with reasoning function, the image to be printed is used as the input of the model, and the values of A and k are obtained through reasoning.

In order to simplify the processing process, in another embodiment of the present invention, a database or look-up table (Look-Up-Table, LUT for short) can be established for the mapping of di _ij and Wi _ij . In the field of industrial printing, the distance between each light source and the printing area is usually fixed. Therefore, the corresponding power weight W _ij can be calculated in advance based on the distance d _ij between each light source and the printing area, and a database or lookup table can be established based on the one-to-one correspondence.

Therefore, the aforementioned S20 can be simplified to: according to the distance between each light source and each printing area, using the distance as an index, searching the database or lookup table to obtain the corresponding power weight. In this implementation, it is possible to avoid calculating the power weight every time and directly extract the corresponding power weight from the database or lookup table to improve efficiency.

In another embodiment of the present invention, the UV lamp includes n light sources, and the UV lamp is used to illuminate m printing areas. n and m are both positive integers. In S30, the output power of the light source satisfies The second conversion formula is:

Among them, P _j represents the output power of the j-th light source, D _i represents the amount of printing ink in the i-th printing area, W _ij represents the power weight of the j-th light source for the i-th printing area, i and j are both positive integers. , 1≤i≤m, 1≤j≤n.

As mentioned above, W _ij can be obtained through the first conversion formula, or through a lookup table or database. Therefore, through the second conversion formula, the output power of each light source can be determined.

For ease of understanding, please continue to refer to Figure 1. Taking light source 1 as an example, its output power is:

Among them, P ₁ represents the output power of light source 1, W ₁₁ represents the power weight of light source 1 to printing area 1, W ₂₁ represents the power weight of light source 1 to printing area 2, and W ₃₁ represents the power weight of light source 1 to printing area 3.

In another embodiment of the present invention, the UV lamp includes n light sources, n is a positive integer. In S30, the output power of the light source satisfies a third conversion formula, and the third conversion formula is:

P _j ＝D _{j_near} *W _{j_near}

Among them, P _j represents the output power of the j-th light source, D _{j_near} represents the amount of printing ink in the printing area closest to the j-th light source, W _{j_near} represents the power weight of the j-th light source in the printing area closest to it, and j is Positive integer, 1≤j≤n.

For ease of understanding, please continue to refer to Figure 1. Taking light source 1 as an example, the printing area closest to light source 1 is printing area 1, and the amount of printing ink in printing area 1 is , the power weight of light source 1 for printing area 1 is W _{1_near} , then the output power of light source 1/>

In another embodiment of the present invention, please refer to Figure 4. In S20, it also includes:

S21: Obtain the weight threshold;

S22: Compare the power weight with the weight threshold;

S23: Adjust the power weight that is less than or equal to the weight threshold to zero.

For example, in the aforementioned embodiment, W ₃₁ is less than the weight threshold, then the value of W ₃₁ is set to 0, then the output power of light source 1 is: Converts to:

In another embodiment of the present invention, please refer to Figure 5. In S20, it also includes:

S24: Get the distance threshold;

S25: Compare the distance between each light source and each printing area and the distance threshold;

S26: If the distance between the light source and the printing area is less than the distance threshold, determine the power weight according to the distance; if the distance between the light source and the printing area is greater than or equal to the distance threshold, skip the step of determining the power weight based on the distance.

For example, in the aforementioned example, if the distance d ₃₁ between the light source 1 and the printing area 3 is greater than the distance threshold, the step of calculating or searching for W ₃₁ based on d ₃₁ is skipped. Correspondingly, W ₃₁ is zero or null. Therefore, the output power of light source 1 is given by: Converts to:

In another embodiment of the present invention, please refer to Figure 6. In S10, it includes:

S11: Perform fitting processing on the amount of printing ink in each of the printing areas to obtain a fitting curve or a fitting straight line;

S12: Re-determine the amount of printing ink in each printing area according to the fitting curve or the fitting straight line.

Please refer to FIG. 7A , which is a schematic diagram of fitting processing of printing ink amounts in multiple printing areas according to an embodiment of the present invention.

Printing area 1 uses nozzles 1 to 3 for inkjet, printing area 2 uses nozzles 4 to 6 for inkjet, and printing area 3 uses nozzles 7 to 9 for inkjet. As mentioned above, the ink output amounts of nozzles 1 to 9 are respectively Y1, Y2,..., Y9. As shown in Figure 7A, linear fitting is performed on the ink output amounts of the 9 nozzles to obtain a fitted straight line. Based on the printing area 1 The midpoint is used as the coordinate value in the height direction of the nozzle, and the value of the corresponding fitted straight line is used as the amount of printing ink in the printing area 1. Similarly, the midpoint of printing area 2 is used as the coordinate value in the height direction of the nozzle, and the value of the corresponding fitting straight line is used as the amount of printing ink in printing area 2. The midpoint of the printing area 3 is used as the coordinate value in the height direction of the nozzle, and the value of the corresponding fitting straight line is used as the amount of printing ink in the printing area 3.

Please refer to FIG. 7B , which is a schematic diagram of another fitting process for printing ink amounts in multiple printing areas provided by an embodiment of the present invention. As mentioned above, the ink output amounts of nozzles No. 1 to 9 are respectively Y1, Y2, ..., Y9. As shown in Figure 7A, curve fitting is performed on the ink output amounts of the nine nozzles to obtain a fitting curve. The midpoint of printing area 1 is used as the coordinate value in the height direction of the nozzle, and the value of the corresponding fitting curve is used as the amount of printing ink in printing area 1. Similarly, the midpoint of printing area 2 is used as the coordinate value in the height direction of the nozzle, and the value of the corresponding fitting curve is used as the amount of printing ink in printing area 2. The midpoint of the printing area 3 is used as the coordinate value in the height direction of the nozzle, and the value of the corresponding fitting curve is used as the amount of printing ink in the printing area 3.

An embodiment of the present invention also provides a power adjustment device for a UV lamp. Please refer to FIG. 8 , which is a schematic structural diagram of a power adjustment device for a UV lamp provided by an embodiment of the present invention. The UV lamp includes multiple light sources. The UV lamp is used to illuminate at least one printing area, and the device includes:

Printing ink amount determination module 810, the printing ink amount determining module 810 is used to obtain printing parameters, and determine the printing ink amount of each printing area according to the printing parameters;

Power weight determination module 820, the power weight determination module 820 is configured to determine the power weight of each of the light sources for each of the printing areas according to the distance between each of the light sources and each of the printing areas;

The output power determination module 830 is configured to determine the output power of each light source according to the power weight of each light source for each printing area and the amount of printing ink in each printing area.

In addition, the power adjustment method of the UV lamp in the above embodiment can be implemented by a printing device. Figure 9 shows a schematic diagram of the hardware structure of a printing device provided by an embodiment of the present invention.

Printing device 900 may include a processor and memory storing computer program instructions.

Specifically, the above-mentioned processor may include a central processing unit (CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits that may be configured to implement embodiments of the present invention.

Memory may include bulk storage for data or instructions. By way of example and not limitation, the memory may include a Hard Disk Drive (HDD), a floppy disk drive, flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a Universal Serial Bus (USB) drive or two or more A combination of these. Storage may include removable or non-removable (or fixed) media, where appropriate. Where appropriate, the memory may be internal or external to the data processing device. In certain embodiments, the memory is non-volatile solid state memory. In certain embodiments, the memory includes read-only memory (ROM). Where appropriate, the ROM may be a mask-programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), electrically rewritable ROM (EAROM) or flash memory or A combination of two or more of these.

The processor reads and executes the computer program instructions stored in the memory to implement any one of the UV lamp power adjustment methods in the above embodiments.

In one example, the printing device may also include a communication interface and bus. Among them, as shown in Figure 9, the processor, memory, and communication interface are connected through the bus and complete communication with each other.

The communication interface is mainly used to implement communication between modules, devices, units and/or equipment in the embodiments of the present invention.

A bus includes hardware, software, or both, that couples the components of a printing device to one another. By way of example, and not limitation, the bus may include Accelerated Graphics Port (AGP) or other graphics bus, Enhanced Industry Standard Architecture (EISA) bus, Front Side Bus (FSB), HyperTransport (HT) interconnect, Industry Standard Architecture (ISA) Bus, Infinite Bandwidth Interconnect, Low Pin Count (LPC) Bus, Memory Bus, Micro Channel Architecture (MCA) Bus, Peripheral Component Interconnect (PCI) Bus, PCI-Express (PCI-X) Bus, Serial Advanced Technology Attachment (SATA) bus, Video Electronics Standards Association Local (VLB) bus or other suitable bus or a combination of two or more of these. Where appropriate, a bus may include one or more buses. Although embodiments of the invention describe and illustrate a particular bus, the invention contemplates any suitable bus or interconnection.

In addition, combined with the power adjustment method of the UV lamp in the above embodiment, the embodiment of the present invention can be implemented by providing a computer-readable storage medium. Computer program instructions are stored on the computer-readable storage medium; when the computer program instructions are executed by the processor, any one of the UV lamp power adjustment methods in the above embodiments is implemented.

It is to be understood that this invention is not limited to the specific arrangements and processes described above and illustrated in the drawings. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications and additions, or change the order between steps after understanding the spirit of the present invention.

The functional blocks shown in the above structural block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, or the like. When implemented in software, elements of the invention are programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted over a transmission medium or communications link via a data signal carried in a carrier wave. "Machine-readable medium" may include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, and the like. Code segments may be downloaded via computer networks such as the Internet, intranets, and the like.

It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps. That is to say, the steps may be performed in the order mentioned in the embodiments, or may be different from the order in the embodiments, or several steps may be performed simultaneously.

The above are only specific implementations of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the above-described systems, modules and units can be referred to the foregoing method embodiments. The corresponding process will not be described again here. It should be understood that the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should be covered. within the protection scope of the present invention.

Claims (10)

1. A distance-based UV lamp power adjustment method, the UV lamp comprising a plurality of light sources, the UV lamp for illuminating at least 1 print zone, the method comprising:

s10: acquiring printing parameters, and determining the printing ink quantity of each printing area according to the printing parameters;

s20: determining the power weight of each light source for each printing area according to the distance between each light source and each printing area;

s30: determining the output power of each light source according to the power weight of each light source for each printing area and the printing ink quantity of each printing area;

wherein, in S20, further comprising:

s24: acquiring a distance threshold;

s25: comparing the distance between each light source and each printing area with the distance threshold;

s26: if the distance between the light source and the printing area is smaller than the distance threshold value, determining the power weight according to the distance; and if the distance between the light source and the printing area is greater than or equal to the distance threshold value, skipping the step of determining the power weight according to the distance.

2. The method according to claim 1, wherein the steps S24 to S25 are replaced by the steps of:

s21: acquiring a weight threshold value;

s22: comparing the power weight with the weight threshold;

s23: and adjusting the power weight less than or equal to the weight threshold to zero.

3. The method according to claim 1 or 2, characterized in that in S10 it comprises:

s11: fitting the printing ink quantity of each printing area to obtain a fitting curve or a fitting straight line;

s12: and re-determining the printing ink quantity of each printing area according to the fitting curve or the fitting straight line.

4. The method according to claim 1 or 2, wherein the UV lamp comprises n light sources, the UV lamp is used for illuminating m print areas, n and m are both positive integers, and in S20, the power weight satisfies a first conversion formula, the first conversion formula is:

wherein W is _ij Represents the power weight, d, of the jth light source for the ith print zone _ij The distance between the jth light source and the ith printing area is represented, A and k are positive real numbers, k is equal to or less than 1, i and j are positive integers, i is equal to or less than 1 and less than or equal to m, and j is equal to or less than 1 and less than or equal to n.

5. The method of claim 4, wherein S20 comprises:

according to said d _ij And said W _ij A lookup table is established according to the one-to-one mapping relation of the number (1);

and acquiring the distance between each light source and each printing area, and searching the lookup table by taking the distance as an index to obtain the corresponding power weight.

6. The method according to claim 1 or 2, wherein the UV lamp comprises n light sources for illuminating m print areas, n and m being positive integers, and the output power of the light sources satisfies a second conversion formula in S30, the second conversion formula being:

wherein P is _j Represents the output power of the jth light source, D _i Representing the printing ink quantity of the ith printing area, W _ij The power weight of the jth light source to the ith printing area is represented, i and j are positive integers, i is more than or equal to 1 and less than or equal to m, and j is more than or equal to 1 and less than or equal to n.

7. The method according to claim 1 or 2, wherein the UV lamp comprises n light sources, n being a positive integer, the output power of the light sources satisfying a third conversion formula in S30, the third conversion formula being:

P _j ＝D _{j_near} *W _{j_near}

wherein P is _j Represents the output power of the jth light source, D _{j_near} Representing the amount of ink printed in the print area nearest to the jth light source, W _{j_near} The power weight of the j-th light source for the printing area nearest to the j-th light source is represented, j is a positive integer, and j is more than or equal to 1 and less than or equal to n.

8. A distance-based UV lamp power adjustment device, the UV lamp comprising a plurality of light sources, the UV lamp for illuminating at least 1 print area, the device comprising:

the printing ink quantity determining module is used for acquiring printing parameters and determining the printing ink quantity of each printing area according to the printing parameters;

the power weight determining module is used for determining the power weight of each light source for each printing area according to the distance between each light source and each printing area; further comprises: acquiring a distance threshold; comparing the distance between each light source and each printing area with the distance threshold; if the distance between the light source and the printing area is smaller than the distance threshold value, determining the power weight according to the distance; and if the distance between the light source and the printing area is greater than or equal to the distance threshold value, skipping the step of determining the power weight according to the distance.

And the output power determining module is used for determining the output power of each light source according to the power weight of each light source for each printing area and the printing ink quantity of each printing area.

9. A printing device, characterized in that it further comprises at least one processor, at least one memory and computer program instructions stored in said memory, which when executed by said processor, implement the method according to any of claims 1-7.

10. A storage medium having stored thereon computer program instructions, which when executed by a processor, implement the method of any of claims 1-7.