A label printing platform system based on image conversion

Abstract

The present invention discloses a label printing platform system based on image conversion, which belongs to the technical field of label printing platform. The system includes an image conversion processing module, an interactive control module, a printing platform management module, a printing event recording module, a consumables status monitoring module and an intelligent analysis module; by providing a human-computer interaction platform, different image features are determined, so that operators can edit label templates by themselves, which not only meets various label printing needs, but also increases the independence of products in the industrial production process; by establishing a consumables analysis model, the influence of different printing templates on the amount of printing consumables when printing labels is analyzed, and the total amount of printing consumables required by the printer to complete the label printing task is calculated, so as to give an early warning of whether the current printing consumables are sufficient, effectively supervise the printing consumables, and improve the label printing quality and industrial production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of label printing platforms, and in particular to a label printing platform system based on image conversion. Background Art

[0002] With the rapid development of the Internet of Things and intelligent manufacturing, label printing has been widely used in factories, logistics, automation technology, retail, medical and other fields; the label printing platform based on image conversion is an efficient system that combines image processing technology and label printing functions. It uses image conversion technology to convert images, graphics or text materials provided by users into a format suitable for label printing. At the same time, it can adjust the printing specifications and sizes to meet various label printing needs.

[0003] In some industrial production fields, during the process of printing labels, due to the large actual shipment volume of the factory, tens of thousands of label documents often need to be printed. If the number of each label is different, for the conventional static printing method, changing the traditional method of printing one by one is obviously not in line with the requirements of industrialization; and the printing of a large number of labels will accelerate the use of printing consumables. Insufficient printing consumables can easily cause a decline in printing quality and affect industrial production efficiency. In the prior art, the printing consumption is usually monitored based on the printing area, but this method cannot effectively predict printed labels with different characteristics, resulting in low supervision efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a label printing platform system based on image conversion to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a label printing platform system based on image conversion, the system comprising an image conversion processing module, an interactive control module, a printing platform management module, a printing event recording module, a consumables status monitoring module and an intelligent analysis module;

[0006] The image conversion processing module is used to extract the image features of the label; and send the extracted image features to the interactive control module;

[0007] The interactive control module is used for the operator to edit the printing template and determine the number of labels to be printed for different printing templates; when the remaining printing consumables are insufficient, a prompt is given; the printing template contains the printed paper size and the proportion and position information of the image features in the template; the edited printing template and the number of labels to be printed for different printing templates are sent to the printing platform and the intelligent analysis module;

[0008] The printing platform management module is used to control the printer to print labels and complete the label printing task according to the printing templates edited by the operator and the label printing quantity of different printing templates;

[0009] The printing event recording module is used to collect the printing data of the printing platform management module and store the collected printing data as historical data in the database; the printing data includes the label printing status and the amount of printing consumables of the printer; the label printing status indicates the label printing start time and printing end time of the corresponding printing template under different printing times; the printing consumables amount indicates the label printing consumables usage of the corresponding printing template under different printing times within the time period of the printing start time and the printing end time; the historical data stored in the database is sent to the consumables status monitoring module;

[0010] The consumables status monitoring module is used to establish a consumables analysis model based on historical printing data to analyze the impact of different printing templates on the amount of printing consumables when printing labels;

[0011] The intelligent analysis module is used to monitor the current remaining amount of printing consumables; calculate the total amount of printing consumables required for the printer to complete the label printing task based on the established consumables analysis model, the edited printing templates and the number of labels printed by different printing templates; determine whether the current remaining printing consumables are sufficient; if not sufficient, send a signal indicating that the current remaining printing consumables are insufficient to the interactive control module.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are: by providing a human-computer interaction platform and determining different image features, operators can edit label templates by themselves, which not only meets various label printing needs, but also increases the independence of products in the industrial production process; by establishing a consumables analysis model, the impact of different printing templates on the amount of printing consumables when printing labels is analyzed, and the total amount of printing consumables required for the printer to complete the label printing task is calculated, thereby providing early warning of whether the current printing consumables are sufficient, effectively supervising the printing consumables, and improving the label printing quality and industrial production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a label printing platform system based on image conversion of the present invention;

[0014] Figure 2 is a schematic diagram of data transmission in a printer calling process according to an embodiment of the present invention;

[0015] Figure 3 This is an interface diagram for an operator to edit a print template in an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0017] See also Figure 1-3 , the present invention provides a technical solution:

[0018] See also Figure 1-3 , in this embodiment: a label printing platform system based on image conversion is provided, the system includes an image conversion processing module, an interactive control module, a printing platform management module, a printing event recording module, a consumables status monitoring module and an intelligent analysis module;

[0019] The image conversion processing module is used to extract the image features of the label; and send the extracted image features to the interactive control module;

[0020] The interactive control module is used for the operator to edit the printing template and determine the number of labels to be printed for different printing templates; when the remaining printing consumables are insufficient, a prompt is given; the printing template contains the printed paper size and the proportion and position information of the image features in the template; the edited printing template and the number of labels to be printed for different printing templates are sent to the printing platform and the intelligent analysis module;

[0021] The printing platform management module is used to control the printer to print labels and complete the label printing task according to the printing templates edited by the operator and the label printing quantity of different printing templates;

[0022] The printing event recording module is used to collect the printing data of the printing platform management module and store the collected printing data as historical data in the database; the printing data includes the label printing status and the amount of printing consumables of the printer; the label printing status indicates the label printing start time and printing end time of the corresponding printing template under different printing times; the printing consumables amount indicates the label printing consumables usage of the corresponding printing template under different printing times within the time period of the printing start time and the printing end time; the historical data stored in the database is sent to the consumables status monitoring module;

[0023] The consumables status monitoring module is used to establish a consumables analysis model based on historical printing data to analyze the impact of different printing templates on the amount of printing consumables when printing labels;

[0024] The intelligent analysis module is used to monitor the current remaining amount of printing consumables; calculate the total amount of printing consumables required for the printer to complete the label printing task based on the established consumables analysis model, the edited printing templates and the number of labels printed by different printing templates; determine whether the current remaining printing consumables are sufficient; if not sufficient, send a signal indicating that the current remaining printing consumables are insufficient to the interactive control module.

[0025] like Figure 2 As shown, in this implementation, the operator edits the print template through the AntvX6 visualization diagram, converts the image features and text nodes of the label into high-precision vector graphics SVG format to store information, and obtains JSON data. The MES system sends the print message and JSON data to the Node backend of the printing platform through Socket.io communication. When the Node backend of the printing platform receives the print message and JSON data sent by the MES system, it parses the JSON data into a recognizable format, retrieves the print template stored locally, and sends the corresponding print template and the parsed JSON data to the Electron front end. The Electron front end merges the parsed JSON data and the local print template and converts them into an SVG, and then uses the generated SVG to call the underlying printing function of Windows for label printing through the cross-platform capability of Electron; wherein, according to the operator editing the print template, a print plug-in is integrated in the MES system. After the MES system sends the data, the print plug-in can respond in time and print the edited print template on paper, so that thousands of template labels with different content data can be printed with one click, which improves the convenience and speed of label printing and fundamentally improves the overall experience of label printing.

[0026] Further, the image conversion processing module includes an image processing unit and a feature extraction unit;

[0027] The image processing unit is used to preprocess the label image to improve the image quality and send the preprocessed label image to the feature extraction unit;

[0028] The feature extraction unit is used to analyze the pre-processed labeled image and extract image features.

[0029] Furthermore, the image features include paper headers and footers, rectangular frames, text, pictures, barcodes, QR codes and data tables.

[0030] Further, the interaction control module includes an interaction platform management unit, a template generation unit and an information determination unit;

[0031] The interactive platform management unit is used to provide an interactive display platform, through which the operator edits the printing template and sends the edited printing template to the template generation unit; wherein, when the currently remaining printing consumables are insufficient, it is prompted that the currently remaining printing consumables are insufficient and the label printing task cannot be completed;

[0032] The template generation unit is used to export the edited printing template and store it locally;

[0033] The information determination unit is used to determine the printing template edited in the template generation unit and the label printing quantity of different printing templates.

[0034] It should be noted that the label printing task includes the edited printing template and the label printing quantity of different printing templates.

[0035] like Figure 3 As shown, in this embodiment, the operator edits the printing template through the interactive display platform, and provides customizable modification strategies according to different image features, such as the width, height setting, variable setting, and position information setting of the text; and the variable, height, position information, line width, display text, and text position setting of the barcode.

[0036] Further, the printing platform management module includes a signal receiving unit and a printing control unit;

[0037] The signal receiving unit is used to receive a label printing task and send the received label printing task to the printing control unit;

[0038] The printing control unit is used to determine the edited printing template and the label printing quantity of different printing templates according to the label printing task, control the printer to print the labels, and complete the label printing task.

[0039] In this embodiment, the printer also includes a ZPL printing mode; the system has the function of translating barcodes into ZPL printing instructions, so that it can achieve twice the accuracy improvement compared to ordinary barcode printing software at lower widths.

[0040] In this embodiment, a printing consumables monitoring function is added to the printer to supervise the use of printing consumables, thereby improving printing quality and industrial production efficiency and preventing insufficient printing consumables during label printing tasks; the printing consumables are ink.

[0041] Further, the printing event recording module includes a time recording unit, a consumables quantity recording unit and a database;

[0042] The time recording unit is used to collect the label printing status of the printer, and record the label printing start time and printing end time A1, A2, ..., A2 of the corresponding printing template under different printing times. n Among them, A i =(t i1 ,t i2 );A i Indicates the label printing start time and printing end time of the corresponding printing template under the i-th printing collected; t i1 Indicates the label printing start time of the corresponding printing template under the i-th printing of the record; t i2 Indicates the label printing end time of the corresponding printing template under the i-th printing collected; i = 1, 2,

[0043] ..., n; n represents the total number of prints;

[0044] The consumables quantity recording unit is used to collect printing consumables quantity data, and record the label printing consumables usage U1, U2, ..., U2 of the corresponding printing template under different printing times within the time period between the printing start time and the printing end time. n ;

[0045] The database is used to store the label printing status of the printer collected by the time recording unit and the amount of printing consumables collected by the consumables amount recording unit as historical data.

[0046] It should be noted that by recording the label printing start time and printing end time A1, A2, ..., A corresponding to the printing template under different printing times, n , by corresponding to t i1 and t i2 The timestamp is used to obtain the time periods corresponding to different printing times, and the amount of printing consumables in the printer is monitored. The change value of the amount of printing consumables within the time period is the usage of label printing consumables of the corresponding printing template.

[0047] Furthermore, the consumables status monitoring module includes a data analysis unit and an analysis model building unit;

[0048] The data analysis unit is used to retrieve the label printing status and printing consumables amount of the printer in the historical data from the database for analysis, and determine the paper size (H1, W1) under different printing times,

[0049] (H2,W2),...,(H n ,W n ), determine the proportion and position information of different image features in the template under different printing times, and the sets P1, P2, ..., P n ; Among them, P i ={pi1 、p i2 , ..., p im}; p ij =(s ij ,g ij );Send the analysis result to the analysis model building unit;

[0050] Among them, H1, H2, ..., H n Respectively represent the height of the paper at different printing times; W1, W2, ..., W n Respectively represent the width of the paper at different printing times; P i represents the set of proportions and position information of different image features in the template under the i-th printing; p i1 、p i2 , ..., p im represents the proportion and position information of different image features in the template under the i-th printing; p ij Indicates the proportion and position information of the jth image feature in the template under the i-th printing; s ij represents the proportion of the jth image feature in the template under the i-th printing; g ij represents the position information of the j-th image feature in the template in the i-th printing; j=1, 2, ..., m; m represents the number of image feature types; in this embodiment, the value of m is 7;

[0051] The analysis model building unit is used to build a consumables analysis model based on historical printing data; according to the height H and width W of the paper, the proportions s1, s2, ..., s of different image features in the template m and position information g1, g2, ..., g m , determine the area ratio of different image features in the paper according to and the amount of printing consumables used U, analyze the impact of different printing templates on the amount of printing consumables when printing labels, and calculate the impact weights α1, α2, ..., α on the amount of printing consumables when printing labels with different image features m , according to the calculation formula:

[0052]

[0053] Among them, ε represents the error term;

[0054] Sets P1, P2, ..., P n , U1, U2, ..., U n and (H1,W1), (H2,W2), ..., (H n ,W n) as the training parameters of the consumables analysis model, and are substituted into the above calculation formula to determine α1, α2, ..., α m and the value of ε.

[0055] It should be noted that by establishing a consumables analysis model and fitting the regression curve, s i1 、s i2 ,...,s im As s1, s2, ..., s m training parameters; H1, H2, ..., H n As the training parameters of H; W1, W2, ..., W n As the training parameters of W; U1, U2, ..., U n As the training parameters of U; substitute them into the fitted regression relationship curve respectively, and finally determine α1, α2, ..., α m and ε, so as to facilitate the judgment of whether the printing consumables are sufficient in combination with the current label printing task, thereby improving the label printing quality and industrial production efficiency.

[0056] Furthermore, the intelligent analysis module includes a consumables monitoring unit, an intelligent calculation unit and an intelligent early warning judgment unit;

[0057] The consumables amount monitoring unit is used to monitor the current remaining amount of printing consumables and calculate the current remaining amount of printing consumables U s Send to the intelligent early warning judgment unit;

[0058] The intelligent calculation unit is used to determine the total printing consumables U required by the printer to complete the label printing task according to the established consumables analysis model, the edited printing templates and the number of labels printed by different printing templates. z :

[0059]

[0060] Among them, x e Indicates the number of labels printed by the e-th printing template in the label printing task; They represent the proportion of different image features in the e-th printing template; H e Indicates the height of the paper in the e-th printing template; W e Indicates the width of the paper in the e-th printing template; e = 1, 2, ..., k; k indicates the number of printing template types in the label printing task;

[0061] Among them, the calculated U z Send intelligent early warning judgment unit;

[0062] The intelligent early warning judgment unit is used to s and U z , determine whether the remaining printing supplies are sufficient; s and U z For comparison; when U s ≥U z When the remaining printing supplies are sufficient, no operation is performed; when U s z When the remaining printing consumables are insufficient, a signal is sent to the interactive platform management unit.

[0063] like Figure 1 As shown, in this embodiment:

[0064] The system is an industrial label printing platform system. At this time, there is an industrial production that needs to print image labels for a batch of different products, and the printing template corresponding to the image label needs to be adjusted;

[0065] The image processing unit in the image conversion processing module preprocesses the labeled image and sends the preprocessed labeled image to the feature extraction unit; the feature extraction unit extracts image features and sends the extracted image features to the interactive platform management unit in the interactive control module;

[0066] The interactive platform management unit sends the edited printing template to the template generation unit; the template generation unit exports the edited printing template and sends it to the information determination unit; the information determination unit determines the printing template edited in the template generation unit and the number of labels to be printed for different printing templates, sends the label printing task to the signal receiving unit in the printing platform management module, and sends the edited printing template and the number of labels to be printed for different printing templates to the intelligent calculation unit in the intelligent analysis module;

[0067] The signal receiving unit sends the received label printing task to the printing control unit; the printing control unit controls the printer to print the label according to the label printing task to complete the label printing task;

[0068] Among them, the function of monitoring the printing consumables of the printer is added to supervise the use of printing consumables;

[0069] The time recording unit in the printing event recording module collects the label printing status of the printer in the printing control unit, and the consumable quantity recording unit collects the printing consumable quantity data of the printer in the printing control unit; the database stores the label printing status of the printer collected by the time recording unit and the printing consumable quantity collected by the consumable quantity recording unit as historical data;

[0070] ​The data analysis unit in the consumable status monitoring module retrieves and analyzes the stored historical data from the database, and sends the analysis results to the analysis model establishment unit; the analysis model establishment unit establishes a consumable analysis model to analyze the impact of different printing templates on the amount of printing consumables when printing labels;

[0071] The consumables monitoring unit in the intelligent analysis module monitors the current remaining amount of printing consumables, and sends the current remaining amount of printing consumables to the intelligent early warning judgment unit; the intelligent calculation unit calculates the total amount of printing consumables required for the printer to complete the label printing task based on the consumables analysis model established in the analysis model establishment unit, the edited printing template and the number of label prints of different printing templates, and sends the calculation result to the intelligent early warning judgment unit; the intelligent early warning judgment unit determines whether the current remaining printing consumables are sufficient. When the current remaining printing consumables are insufficient, a signal is sent to the interactive platform management unit in the interactive control module. After receiving the signal, the interactive platform management unit prompts that the current remaining printing consumables are insufficient and the label printing task cannot be completed.

[0072] In another embodiment, there is no need to adjust the printing template corresponding to the previous image label. After the operator confirms the label printing task, the printing template stored locally in the template generation unit is sent to the information determination unit. The information determination unit sends the label printing task to the signal receiving unit in the printing platform management module, and sends the edited printing template and the number of labels printed by different printing templates to the intelligent computing unit in the intelligent analysis module.

[0073] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A label printing platform system based on image conversion, characterized in that: The system includes an image conversion processing module, an interactive control module, a printing platform management module, a printing event recording module, a consumables status monitoring module and an intelligent analysis module; The image conversion processing module is used to extract the image features of the label; and send the extracted image features to the interactive control module; The interactive control module is used for operators to edit printing templates and determine the number of labels to be printed for different printing templates; and to give a prompt when the remaining printing consumables are insufficient; The printing template includes the printed paper size and the proportion and position information of the image features in the template; the edited printing template and the number of labels printed by different printing templates are sent to the printing platform and the intelligent analysis module; The printing platform management module is used to control the printer to print labels and complete the label printing task according to the printing templates edited by the operator and the label printing quantity of different printing templates; The printing event recording module is used to collect printing data from the printing platform management module and store the collected printing data as historical data in the database; The printing data includes the label printing status of the printer and the amount of printing consumables; the label printing status indicates the label printing start time and printing end time of the corresponding printing template under different printing times; The amount of printing consumables indicates the amount of label printing consumables used by the corresponding printing template under different printing times within the time period between the printing start time and the printing end time; the historical data stored in the database is sent to the consumables status monitoring module; The consumables status monitoring module is used to establish a consumables analysis model based on historical printing data to analyze the impact of different printing templates on the amount of printing consumables when printing labels; The intelligent analysis module is used to monitor the current remaining amount of printing consumables; Based on the established consumables analysis model, the edited printing templates and the number of labels printed by different printing templates, calculate the total amount of printing consumables required for the printer to complete the label printing task; determine whether the current remaining printing consumables are sufficient; if not, send a signal indicating that the current remaining printing consumables are insufficient to the interactive control module.

2. The label printing platform system based on image conversion according to claim 1, characterized in that: The image conversion processing module includes an image processing unit and a feature extraction unit; The image processing unit is used to preprocess the label image to improve the image quality and send the preprocessed label image to the feature extraction unit; The feature extraction unit is used to analyze the pre-processed labeled image and extract image features.

3. The label printing platform system based on image conversion according to claim 2 is characterized in that: The image features include paper headers and footers, rectangular frames, texts, pictures, barcodes, QR codes and data tables.

4. The label printing platform system based on image conversion according to claim 2 is characterized in that: The interaction control module includes an interaction platform management unit, a template generation unit and an information determination unit; The interactive platform management unit is used to provide an interactive display platform, through which the operator edits the printing template and sends the edited printing template to the template generation unit; wherein, when the currently remaining printing consumables are insufficient, it is prompted that the currently remaining printing consumables are insufficient and the label printing task cannot be completed; The template generation unit is used to export the edited printing template and store it locally; The information determination unit is used to determine the printing template edited in the template generation unit and the label printing quantity of different printing templates.

5. The label printing platform system based on image conversion according to claim 4 is characterized in that: The printing platform management module includes a signal receiving unit and a printing control unit; The signal receiving unit is used to receive a label printing task and send the received label printing task to the printing control unit; The printing control unit is used to determine the edited printing template and the label printing quantity of different printing templates according to the label printing task, control the printer to print the labels, and complete the label printing task.

6. The label printing platform system based on image conversion according to claim 5, characterized in that: The printing event recording module includes a time recording unit, a consumables quantity recording unit and a database; The time recording unit is used to collect the label printing status of the printer, and record the label printing start time and printing end time A1, A2, ..., A2 of the corresponding printing template under different printing times. n ; Among them, A i =(t i1 ,t i2 );A i Indicates the label printing start time and printing end time of the corresponding printing template under the i-th printing collected; t i1 Indicates the label printing start time of the corresponding printing template under the i-th printing of the record; t i2 Indicates the label printing end time of the corresponding printing template under the i-th printing collected; i = 1, 2, ..., n; n represents the total number of printings; The consumables quantity recording unit is used to collect printing consumables quantity data, and record the label printing consumables usage U1, U2, ..., U2 of the corresponding printing template under different printing times within the time period between the printing start time and the printing end time. n ; The database is used to store the label printing status of the printer collected by the time recording unit and the amount of printing consumables collected by the consumables amount recording unit as historical data.

7. The label printing platform system based on image conversion according to claim 6 is characterized by: The consumables status monitoring module includes a data analysis unit and an analysis model building unit; The data analysis unit is used to retrieve the label printing status and printing consumables amount of the printer in the historical data from the database for analysis, and determine the paper sizes (H1, W1), (H2, W2), ..., (H n ,W n ), determine the proportion and position information of different image features in the template under different printing times, and the sets P1, P2, ..., P n ; Among them, P i ={p i1 、p i2 , ..., p im }; p ij =(s ij ,g ij );Send the analysis result to the analysis model building unit; Among them, H1, H2, ..., H n Respectively represent the height of the paper at different printing times; W1, W2, ..., W n Respectively represent the width of the paper at different printing times; P i represents the set of proportions and position information of different image features in the template under the i-th printing; p i1 、p i2 , ..., p im represents the proportion and position information of different image features in the template under the i-th printing; p ij Indicates the proportion and position information of the jth image feature in the template under the i-th printing; s ij represents the proportion of the jth image feature in the template under the i-th printing; g ij Indicates the position information of the j-th image feature in the template in the i-th printing; j = 1, 2, ..., m; m represents the number of image feature types; The analysis model building unit is used to build a consumables analysis model based on historical printing data; according to the height H and width W of the paper, the proportions s1, s2, ..., s of different image features in the template m and position information g1, g2, ..., g m , determine the area ratio of different image features in the paper according to and the amount of printing consumables used U, analyze the impact of different printing templates on the amount of printing consumables when printing labels, and calculate the weights α1, α2, ..., α1 of different image features on the amount of printing consumables when printing labels m , according to the calculation formula: Among them, ε represents the error term; Sets P1, P2, ..., P n , U1, U2, ..., U n and (H1,W1), (H2,W2), ..., (H n ,W n ) as the training parameters of the consumables analysis model, and are substituted into the above calculation formula to determine α1, α2, ..., α m and the value of ε.

8. The label printing platform system based on image conversion according to claim 7, characterized in that: The intelligent analysis module includes a consumables monitoring unit, an intelligent calculation unit and an intelligent early warning judgment unit; The consumables amount monitoring unit is used to monitor the current remaining amount of printing consumables and calculate the current remaining amount of printing consumables U s Send to the intelligent early warning judgment unit; The intelligent calculation unit is used to determine the total printing consumables U required by the printer to complete the label printing task according to the established consumables analysis model, the edited printing templates and the number of labels printed by different printing templates. z : Among them, x e Indicates the number of labels printed by the e-th printing template in the label printing task; They represent the proportion of different image features in the e-th printing template; H e Indicates the height of the paper in the e-th printing template; W e Indicates the width of the paper in the e-th printing template; e = 1, 2, ..., k; k indicates the number of printing template types in the label printing task; Among them, the calculated U z Send intelligent early warning judgment unit; The intelligent early warning judgment unit is used to s and U z , determine whether the remaining printing supplies are sufficient; s and U z For comparison; when U s ≥U z When the remaining printing supplies are sufficient, no operation is performed; when U s z When the remaining printing consumables are insufficient, a signal is sent to the interactive platform management unit.​

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