Intelligent control terminal based on intaglio printing machine

Abstract

The application discloses a kind of intelligent control terminal based on intaglio printing machine, it is related to intelligent control technical field, including control terminal, the control terminal communication connection has data acquisition module, data analysis module, data processing module and early warning module;The data acquisition module is used to obtain original image and several printing plate images;The data analysis module obtains several layer plate images according to original image, compares layer plate image with printing plate image, detects whether there is wrong version condition, generates wrong version information according to wrong version condition;The data processing module is used to correct processing to wrong version information, and generates early warning information according to processing result;The early warning module is used to process early warning information.

Description

Technical Field

[0001] This invention relates to the field of intelligent control technology, specifically an intelligent control terminal based on a gravure printing machine. Background Technology

[0002] A gravure printing press is a machine that uses a gravure plate for printing. The image areas of the printing plate are recessed, while the blank areas are on the same plane as the outer circle of the printing cylinder. Gravure printing products have the advantages of thick ink layers, rich tones, strong three-dimensionality, and good printing quality. They are mainly used for printing exquisite color pictures, trademarks, decorative items, securities, and color newspapers.

[0003] Improving the accuracy of images printed by gravure printing machines is a problem we need to consider. To address this, we present an intelligent control terminal based on gravure printing machines. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide an intelligent control terminal based on a gravure printing machine.

[0005] The objective of this invention can be achieved through the following technical solution: an intelligent control terminal based on a gravure printing machine, comprising a control terminal, wherein the control terminal is communicatively connected to a data acquisition module, a data analysis module, a data processing module, and an early warning module;

[0006] The data acquisition module is used to acquire the original image and several printing plate images;

[0007] The data analysis module obtains several layer images based on the original image, and detects whether there are any errors by comparing the layer images with the printing plate image, and generates error information based on the errors.

[0008] The data processing module is used to correct the misprinted information and generate warning information based on the processing results;

[0009] The early warning module is used to process early warning information.

[0010] Furthermore, the process by which the data acquisition module acquires the original image and several printing plate images is as follows:

[0011] The data acquisition module includes an input port and several sets of acquisition components;

[0012] The input port is used by the user to input the image to be printed, and the image is marked as the original image.

[0013] The gravure printing machine consists of an automatic paper feeder, a paper delivery mechanism, several printing units, a paper transfer roller, a paper receiving device, and a paper receiving table.

[0014] The acquisition component includes a camera and a constant-on light, used to acquire the printed image generated after the color registration of the printing unit is completed, and to mark the printed image as a printing plate image.

[0015] An acquisition signal is generated based on the printing plate image and the acquisition number of the acquisition component that acquired the printing plate image. The acquisition signal is then submitted to the data analysis module for subsequent analysis and processing.

[0016] Furthermore, the process by which the data analysis module obtains several layers of images based on the original image includes:

[0017] The original image is separated into several imprinted images by using image processing software.

[0018] Obtain the printing number and ink color value of each printing unit; obtain the RGB value of the imprinted image;

[0019] The RGB values ​​of the imprinted image are matched with the ink color values ​​of the printing unit. If the match is successful, the imprinting number u of the imprinted image is generated, and the printing number of the printing unit is assigned to the imprinting number.

[0020] Obtain the pixels in the embossed image. Based on the positional relationship between the pixels in the original image, perform overlap processing on several embossed images to generate several layer images. Combine the several layer images to generate a layer image set {layer image 1, layer image 2, layer image 3, ..., layer image n}.

[0021] Furthermore, the overlap processing procedure includes:

[0022] There exist imprinted images with imprint numbers 1, 2, ..., n;

[0023] Step 1: Mark the embossed image with embossing number 1 as the first layer image;

[0024] Step 2: Obtain the pixels in the imprint images with imprint numbers 1 and 2, and generate the second layer image by overlapping the pixels in the original image according to their positional relationship.

[0025] Repeat step 2 until the images overlap to generate the nth layer image;

[0026] During the overlap process, the RGB values ​​of the pixels follow the rule of "00 is 0, 01 is 1, and 11 is equal".

[0027] For example, when combining and generating the i-th layer image, there exists a pixel. Let the RGB value of the embossed image with embossing number 1 at this pixel be... The RGB value of the embossed image with embossing number 2 at this pixel is ..., the RGB value of the embossed image with embossing number i at this pixel is... ;

[0028] like Then the value of that pixel is... ;

[0029] like =RGB(255,255,255), If the value is (255, 255, 255), then the value of this pixel is... ;

[0030] like Then the value of that pixel is... .

[0031] Furthermore, the process of detecting misprints by comparing the layer image with the printing plate image, and generating misprint information based on the misprints, is as follows:

[0032] Based on the acquisition number in the acquired signal, obtain the layer image corresponding to the printing plate image, and compare the printing plate image with the layer image. The comparison process is as follows:

[0033] Apply a light-simulating process to the layered image;

[0034] Establish two-dimensional coordinate systems A and B. Map the layer image to two-dimensional coordinate system A and the printing plate image to two-dimensional coordinate system B.

[0035] Obtain the coordinates and RGB values ​​of each pixel in the layer image to generate a color set. { , , ..., };

[0036] Obtain the coordinates and RGB values ​​of each pixel in the printing plate image to generate a color set. { , , ..., };

[0037] Comparison Hue Set Color Collection To obtain outliers;

[0038] Set the abnormal threshold Hg;

[0039] If the number of outliers is 0, the printing plate image and the layer plate image match perfectly, and the printing is successful, with no misprints.

[0040] If the number of outliers is greater than or equal to the outlier threshold Hg, then a misprint exists. This is determined based on the layer image and the presence of outliers. Error information is generated and submitted to the data processing module for appropriate processing.

[0041] Furthermore, the process by which the data processing module corrects the error information and generates warning information based on the processing results includes:

[0042] Based on the received error information, obtain the layer image and the image containing outliers. and according to the A collection of generated garbled characters ;

[0043] Obtain the imprinted image that constitutes the image of this layer;

[0044] Establish a two-dimensional coordinate system C, map the embossed image into the two-dimensional coordinate system C, obtain the coordinate values ​​and RGB values ​​of each pixel in the embossed image, and generate a color set. ;

[0045] The coordinate values ​​are filtered out based on the RGB values ​​of the imprinted image to generate a source coordinate set;

[0046] Combine the coordinate values ​​from the source coordinate set with the garbled text set. Compare the coordinate values ​​in the data;

[0047] If the coordinate values ​​in the source coordinate set are transformed into equivalent values, the resulting new coordinate values ​​will match the garbled data set. If the coordinate values ​​in the graph are equal, then the coordinate value is recorded as a point of similar shape;

[0048] Set the high threshold Fh and the low threshold Fd;

[0049] If the similarity point is greater than or equal to the sum of the height threshold Fh, then the angular velocity of the printing cylinder of the printing unit with the same printing number as the imprinted image is determined to be problematic based on the imprinting number. The angular velocity of the printing cylinder needs to be corrected. At the same time, a three-level warning signal is generated and submitted to the warning module for corresponding processing.

[0050] If the similarity point is less than the sum of the high threshold Fh and greater than the sum of the low threshold Fd, a secondary warning signal is generated and submitted to the warning module for corresponding processing.

[0051] If the similarity point is less than or equal to the low threshold Fd, a first-level warning signal is generated and submitted to the warning module for appropriate processing.

[0052] Furthermore, the process of correcting the angular velocity includes:

[0053] If the coordinate values ​​in the source coordinate set are After performing the equivalent transformation, new coordinate values ​​are generated. The new coordinates Collection of garbled text coordinate values ​​in If they are equal, then mark q as the change amount CHan;

[0054] Get the current angular velocity of the printing plate cylinder, denoted as w; get the current linear velocity of the printing plate cylinder, denoted as v;

[0055] If the change amount CHan is greater than 0, then the rotational speed of the printing plate cylinder will be increased. ;

[0056] If the change amount CHan is less than 0, then the rotation speed of the printing cylinder will be reduced. ;

[0057] Since the printing plate image has been deformed, the change amount CHan does not have a case where it equals 0.

[0058] Furthermore, the process by which the early warning module processes early warning information includes:

[0059] If the warning module receives a Level 1 warning signal, it will inform the user that there is an error in the printing cylinder and the printing cylinder should be replaced in time.

[0060] If the warning module receives a level 2 warning signal, it will inform the user that there is a problem with the angle of the doctor blade and the angle of the doctor blade should be adjusted in time.

[0061] If the warning module receives a Level 3 warning signal, it will inform the user to pay attention to the rotation speed of the printing plate cylinder.

[0062] Compared with the prior art, the beneficial effects of the present invention are: by comparing the coordinate values ​​and RGB values ​​of each pixel in the layer image and the printing plate image, it can be determined whether the printing unit has a problem of the printing plate cylinder rotating too fast or too slow; if there is a problem with the rotation speed of the printing plate cylinder in the printing unit, the angular velocity of the printing plate cylinder is corrected, thereby improving the accuracy of the gravure printing machine printing image. Attached Figure Description

[0063] Figure 1 This is a schematic diagram of the present invention. Detailed Implementation

[0064] like Figure 1 As shown, an intelligent control terminal based on a gravure printing machine includes a control terminal, which is communicatively connected to a data acquisition module, a data analysis module, a data processing module, and an early warning module.

[0065] The data acquisition module is used to acquire the original image and several printing plate images. The specific process includes:

[0066] The data acquisition module includes an input port and several sets of acquisition components;

[0067] The input port is used by the user to input the image to be printed, and the image is marked as the original image.

[0068] The acquired original images are submitted to the data analysis module for further processing.

[0069] Several sets of data acquisition components are numbered and denoted as acquisition number c, c = 1, 2, 3, ..., n, where n is a positive integer;

[0070] The gravure printing machine consists of an automatic paper feeder, a paper delivery mechanism, several printing units, a paper transfer roller, a paper receiving device, and a paper receiving table.

[0071] The printing unit consists of an impression cylinder, a substrate, a doctor blade, a printing plate cylinder, and an ink trough, wherein the ink trough is used to store ink.

[0072] Several printing units are numbered according to the printing order, denoted as printing number s, s=1,2,3,...,n, where n is a positive integer;

[0073] The acquisition component includes a camera and a constant-on light, used to acquire the printed image generated after the color registration of the printing unit is completed, and to mark the printed image as a printing plate image.

[0074] There is a one-to-one correspondence between the acquisition components and the printing units. That is, a group of acquisition components acquires the printing plate image generated by a printing unit. For example, the acquisition component with acquisition number c is 1 acquires the printing plate image generated by the printing unit with printing number s is 1.

[0075] It should be explained that the constant-on lamps in several sets of acquisition components are of the same model, and during use, they are all illuminated with light sources of the same color and brightness; that is, the printing plate images acquired by the acquisition components are all generated under the same lighting conditions, which can effectively avoid the influence of sunlight on the printing plate images.

[0076] A acquisition signal is generated based on the printing plate image and the acquisition number of the acquisition component that acquired the printing plate image. The acquisition signal is then submitted to the data analysis module for subsequent analysis and processing.

[0077] The data analysis module acquires several layer images based on the original image, compares the layer images with the printing plate image, detects whether there are any errors, and generates error information based on the errors. The specific process is as follows:

[0078] The original image is separated into several imprinted images by using image processing software.

[0079] Obtain the printing number and ink color value of each printing unit; the ink color value is the RGB value of the ink stored in the ink trough of the printing unit.

[0080] Obtain the RGB values ​​of the imprinted image;

[0081] The RGB values ​​of the imprinted image are matched with the ink color values ​​of the printing unit. If the match is successful, the imprinting number u of the imprinted image is generated, and the printing number of the printing unit is assigned to the imprinting number, i.e., u=s.

[0082] Therefore, the imprint image with imprint number u=5 should be the image on the printing plate cylinder in the printing unit with printing number 5;

[0083] Obtain the pixels in the embossed image. Based on the positional relationship between the pixels in the original image, perform overlapping processing on several embossed images to generate several layer images. Combine the several layer images to generate a layer image set {layer image 1, layer image 2, layer image 3, ..., layer image n}, where n is a positive integer.

[0084] The process of handling overlap is as follows:

[0085] For example, there are imprinted images with imprint numbers 1, 2, 3, 4, 5;

[0086] Mark the imprint image with imprint number 1 as the first layer image;

[0087] Obtain the pixels in the imprint images with imprint numbers 1 and 2, and generate the second layer image by overlapping the pixels in the original image according to their positional relationship.

[0088] Obtain the pixels in the imprint images with imprint numbers 1, 2, and 3, and generate the third layer image by overlapping the pixels in the original image according to their positional relationship.

[0089] Obtain the pixels in the imprint images with imprint numbers 1, 2, 3, and 4, and generate the 4th layer image by overlapping the pixels in the original image according to their positional relationship.

[0090] Obtain the pixels in the imprint images with imprint numbers 1, 2, 3, 4, and 5, and generate the 5th layer image by overlapping the pixels in the original image according to their positional relationship.

[0091] During the overlap process, the RGB values ​​of the pixels follow the rule of "00 is 0, 01 is 1, and 11 is equal".

[0092] For example, when combining images to generate the third layer, there exists a pixel. Let the RGB value of the embossed image with embossing number 1 at that pixel be... The RGB value of the embossed image with embossing number 2 at this pixel is The RGB value of the embossed image with embossing number 3 at this pixel is ;

[0093] like Then the value of that pixel is... ;

[0094] like =RGB(255,255,255), If the value is (255, 255, 255), then the value of this pixel is... ;

[0095] like Then the value of that pixel is... ;

[0096] The layer image is the image that the printing unit should print.

[0097] As can be seen from the definitions of layer images and printing plate images, there is a one-to-one correspondence between layer images and printing plate images;

[0098] Based on the acquisition number in the acquisition signal, obtain the layer image corresponding to the printing plate image, compare the printing plate image with the layer image, detect whether there is a misprint, and generate misprint information based on the misprint.

[0099] If the acquisition number in the acquisition signal is i, then the layer image corresponding to the printing plate image is the i-th layer image;

[0100] The comparison process is as follows:

[0101] Apply a light-simulating process to the layered image;

[0102] The simulated light processing refers to acquiring the image generated by the layer image under constant light illumination; the constant light is the same model as the constant light in the acquisition component, and during use, a light source of the same color and brightness as the constant light in the acquisition component is used for illumination.

[0103] Establish two-dimensional coordinate system A and two-dimensional coordinate system B, with the same unit length in both systems.

[0104] Map the layer image to a two-dimensional coordinate system A, and map the printing plate image to a two-dimensional coordinate system B;

[0105] Obtain the coordinates and RGB values ​​of each pixel in the layer image to generate a color set. { , , ..., },in, for The K value, for V value;

[0106] Obtain the coordinates and RGB values ​​of each pixel in the printing plate image to generate a color set. { , , ..., },in, for The K value, for V value;

[0107] Comparison Hue Set Color Collection To obtain outliers;

[0108] The outlier is... and In comparison, the K values ​​are the same, but the V values ​​are different;

[0109] Set the abnormal threshold Hg;

[0110] If the number of outliers is 0, the printing plate image and the layer plate image match perfectly, and the printing is successful, with no misprints.

[0111] If the number of outliers is greater than or equal to the outlier threshold Hg, then there is a misprint. (Based on the hue set...) and the existence of outliers Generate error information, that is, based on the layer image and the presence of outliers. Generate error information and submit it to the data processing module for appropriate processing.

[0112] The data processing module is used to correct the erroneous information and generate warning information based on the processing results. The specific process includes:

[0113] Based on the received error information, obtain the layer image and the image containing outliers. and according to the A collection of generated garbled characters { , , ..., };

[0114] Obtain the imprinted image that constitutes the image of this layer;

[0115] Establish a two-dimensional coordinate system C, and the unit length of the two-dimensional coordinate system C is the same as the unit length of the two-dimensional coordinate system A;

[0116] The embossed image is mapped onto a two-dimensional coordinate system C, and the coordinate values ​​and RGB values ​​of each pixel in the embossed image are obtained to generate a color set. { , , ..., },in, for The K value, for V value;

[0117] The coordinate values ​​are filtered out based on the RGB values ​​of the imprinted image to generate a source coordinate set;

[0118] Combine the coordinate values ​​from the source coordinate set with the garbled text set. Compare the coordinate values ​​in the data;

[0119] If the coordinate values ​​in the source coordinate set are transformed into equivalent values, the resulting new coordinate values ​​will match the garbled data set. If the coordinate values ​​in the graph are equal, then the coordinate value is recorded as a point of similar shape;

[0120] The coordinate values ​​in the source coordinate set are After performing the equivalent transformation, new coordinate values ​​are generated. The new coordinates Collection of garbled text coordinate values ​​in Equal, that is ;

[0121] Set the high threshold Fh and the low threshold Fd;

[0122] If the similarity point is greater than or equal to the sum of the height threshold Fh, then the angular velocity of the printing cylinder of the printing unit with the same printing number as the imprinted image is determined to be problematic based on the imprinting number. The angular velocity of the printing cylinder needs to be corrected. At the same time, a three-level warning signal is generated and submitted to the warning module for corresponding processing.

[0123] If the similarity point is less than the sum of the high threshold Fh and greater than the sum of the low threshold Fd, a secondary warning signal is generated and submitted to the warning module for corresponding processing.

[0124] If the similarity point is less than or equal to the low threshold Fd, a first-level warning signal is generated and submitted to the warning module for appropriate processing.

[0125] The process of correcting angular velocity is as follows:

[0126] If the coordinate values ​​in the source coordinate set are After performing the equivalent transformation, new coordinate values ​​are generated. The new coordinates Collection of garbled text coordinate values ​​in If they are equal, then mark q as the change amount CHan;

[0127] Get the current angular velocity of the printing plate cylinder, denoted as w; get the current linear velocity of the printing plate cylinder, denoted as v;

[0128] If the change amount CHan is greater than 0, then the rotational speed of the printing plate cylinder will be increased. ;

[0129] If the change amount CHan is less than 0, then the rotation speed of the printing cylinder will be reduced. ;

[0130] Since the image on the printing plate has been deformed, the change amount CHan does not have a case where it is equal to 0.

[0131] The early warning module is used to process early warning information, and the specific process is as follows:

[0132] If the warning module receives a Level 1 warning signal, it will inform the user that there is an error in the printing cylinder and the printing cylinder should be replaced in time.

[0133] If the warning module receives a level 2 warning signal, it will inform the user that there is a problem with the angle of the doctor blade and the angle of the doctor blade should be adjusted in time.

[0134] If the warning module receives a level 3 warning signal, it will inform the user that they need to pay attention to the rotation speed of the printing plate cylinder;

[0135] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the present invention.

Claims

1. An intelligent control terminal based on a gravure printing machine, comprising a control terminal, characterized in that, The control terminal is connected with a data acquisition module, a data analysis module, a data processing module, and a warning module; The data acquisition module is used for acquiring the original image and the plurality of plate images; The data analysis module acquires a plurality of layer images according to the original image, detects whether there is a misregistration condition by comparing the layer images with the plate images, and generates misregistration information according to the misregistration condition; The data processing module is used for correcting the misregistration information and generating warning information according to the processing result; The warning module is used for processing the warning information; The data acquisition module acquires the original image and the plurality of plate images in the following process: The data acquisition module includes an input port and a plurality of acquisition components; The input port is used for a user to input an image to be printed, and marks the image as the original image; The intaglio printing machine is composed of an automatic paper feeder, a paper feeding mechanism, a plurality of printing units, a paper conveying cylinder, a paper collecting device, and a paper collecting table; The acquisition component includes a camera and a constant light, and is used for acquiring a printed image generated after color registration of the printing unit is completed, and marking the printed image as a plate image; A collection signal is generated according to the plate image and the collection number of the acquisition component that collects the plate image, and is submitted to the data analysis module for subsequent analysis and processing; The data analysis module acquires a plurality of layer images according to the original image in the following process: The original image is subjected to color separation operation by using an image processing software to acquire a plurality of impression images; The printing number and ink color value of each printing unit are acquired, and the RGB value of the impression image is acquired; The RGB value of the impression image is matched with the ink color value of the printing unit, if the matching is successful, the impression number u of the impression image is generated, and the printing number of the printing unit is assigned to the impression number; The pixel points in the impression image are acquired, a plurality of impression images are subjected to coincidence processing according to the positional relationship between the pixel points in the original image, a plurality of layer images are generated, and a layer image set {1st layer image, 2nd layer image, 3rd layer image, …, nth layer image} is generated; The coincidence processing process includes: There are impression images with impression numbers 1, 2, …, n; Step 1: mark the impression image with the impression number 1 as the 1st layer image; Step 2: acquire the pixel points in the impression images with the impression numbers 1 and 2, and generate the 2nd layer image by coincidence according to the positional relationship between the pixel points in the original image; Repeat step 2 until the nth layer image is generated by coincidence; In the coincidence process, the RGB value of the pixel point is taken from "00 is 0, 01 is 1, and 11 is uniform"; When the i-th layer of layout image is generated by combination, there is a pixel point, the RGB value of the pixel point in the printing image numbered 1 is , the RGB value of the pixel point in the printing image numbered 2 is , …, the RGB value of the pixel point in the printing image numbered i is . If , the pixel point takes the value ; If = RGB (255, 255, 255), the pixel point takes the value (255, 255, 255). ; If , the value of the pixel point is ; The process of detecting whether there is a misregistration condition by comparing the layer images with the plate images, and generating misregistration information according to the misregistration condition includes: According to the collection number in the collection signal, the layer image corresponding to the plate image is acquired, and the plate image is compared with the layer image, the comparison process includes: The layer image is subjected to pseudo-light processing; A two-dimensional coordinate system A and a two-dimensional coordinate system B are established, the layer image is mapped to the two-dimensional coordinate system A, and the plate image is mapped to the two-dimensional coordinate system B; Obtain the coordinate value and the RGB value of each pixel point in the layer image, and generate a hue set { , , } Obtain the coordinate value and RGB value of each pixel point in the printing plate image, and generate a hue set { , , }; Comparative color set And color set Obtaining the different value; An abnormal threshold Hg is set; If the number of acquired abnormal values is 0, the printing plate image and the layer plate image are completely matched, and the printing is successful, and there is no misregistration condition; If the number of acquired different values is greater than or equal to the abnormal threshold Hg, there is a misregistration condition, and the layer image and the layer image in which the different values exist are compared to determine the misregistration information. The misregistration information is generated and submitted to the data processing module, and the data processing module makes corresponding processing. The process that the data processing module corrects the misregistration information and generates early warning information according to a processing result includes: According to the received misprint information, the layer image and the existing abnormal value , and according to the Generate a collection of garbled codes ; An impression image constituting the layer plate image is acquired; A two-dimensional coordinate system C is established, the embossed image is mapped into the two-dimensional coordinate system C, coordinate values and RGB values of each pixel point of the embossed image are acquired, and a hue set is generated ; According to the RGB value of the impression image, a coordinate value is screened out to generate a source coordinate set; Comparing the coordinate values in the source coordinate set with the coordinate values in the jumble set ; If the coordinate value in the source coordinate set is changed to a new coordinate value, and the new coordinate value is equal to the coordinate value in the random code set , the coordinate value is marked as a similar point. A high threshold Fh and a low threshold Fd are set; If the similar point is greater than or equal to the high threshold Fh, it is determined that the angular velocity of the printing plate cylinder of the printing unit with the same impression number as the impression number of the impression image has a problem, and the angular velocity of the printing plate cylinder needs to be corrected, and a third-level early warning signal is generated and submitted to the early warning module for corresponding processing; If the similar point is less than the high threshold Fh and greater than the low threshold Fd, a second-level early warning signal is generated and submitted to the early warning module for corresponding processing; If the similar point is less than or equal to the low threshold Fd, a first-level early warning signal is generated and submitted to the early warning module for corresponding processing.

2. The intelligent control terminal based on the intaglio printing machine according to claim 1, characterized in that, The process of correcting the angular velocity includes: If the coordinate values ​​in the source coordinate set are After performing the equivalent transformation, new coordinate values ​​are generated. The new coordinates Collection of garbled text coordinate values ​​in If they are equal, then mark q as the change amount CHan; The current angular velocity of the printing plate cylinder is acquired and recorded as w, and the current linear velocity of the printing plate cylinder is acquired and recorded as v. If the change amount CHan is greater than 0, the rotational speed of the plate cylinder is increased ; If the change amount CHan is smaller than 0, the rotational speed of the plate cylinder is decreased ; Because the printing plate image has been deformed, the change amount CHan cannot be equal to 0.

3. The intelligent control terminal based on the intaglio printing machine according to claim 2, characterized in that, The process that the early warning module processes the early warning information includes: If the early warning module receives the first-level early warning signal, it informs the user that the printing plate cylinder has an error and should be replaced in time; If the early warning module receives the second-level early warning signal, it informs the user that the angle of the doctor blade has a problem and should be adjusted in time; If the early warning module receives the third-level early warning signal, it informs the user to pay attention to the rotational speed of the printing plate cylinder.

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