Internet of Things-based remote printer control methods, systems, and storage media

Abstract

This invention relates to the field of remote printer control technology, and more particularly to a method, system, and storage medium for remote printer control based on the Internet of Things (IoT). The system includes a remote IoT control center, a pre-press security assessment unit, a regional difference verification unit, a basic operation time period assessment and analysis unit, an ink usage obstruction quantitative analysis unit, and a printing control unit. The invention initially analyzes the issue from two perspectives: pre-press authentication and transmission assessment. This helps to understand whether the remote control terminal has printing permissions and also helps to identify potential transmission risks of the document to be printed. Furthermore, through information feedback, it performs regional color difference monitoring and feedback analysis on the document's characteristic images to improve the printer's print quality and ink usage accuracy. Finally, it analyzes time period defect information and ink usage obstruction information in depth to analyze the interfering factors of poor print quality from multiple angles, enabling targeted control measures.

Description

Technical Field

[0001] This invention relates to the field of remote printer control technology, and in particular to a method, system and storage medium for remote printer control based on the Internet of Things. Background Technology

[0002] There are many types of printers, and different printers can print different images and texts to facilitate users in handling different business. Currently, commonly used printers are connected to a control terminal (such as a computer) via a wired connection or to the user's smart terminal (such as a mobile phone) via a wireless connection. When printing is required, the smart terminal or control terminal sends a print command and the data required for printing to the printer, which then performs the printing operation.

[0003] However, in the existing technology, it is impossible to perform security authentication and transmission supervision for remote printing control of printers, thereby reducing the printing security and document integrity of printers. Furthermore, it is impossible to supervise and analyze the quality of printed documents, thus making it impossible to control printers in a timely manner, reducing print quality and the timeliness of print control. Additionally, it is impossible to quantify and evaluate the factors affecting print quality from multiple perspectives, and it is impossible to make targeted control over the influencing factors.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a remote printer control method, system, and storage medium based on the Internet of Things (IoT) to address the aforementioned technical deficiencies. This invention initially analyzes the issue from two aspects: pre-press authentication and transmission evaluation. On the one hand, it determines whether the remote control terminal has printing permissions; on the other hand, it helps to understand the potential transmission risks of the document to be printed. Furthermore, through information feedback, it performs regional color difference monitoring and feedback analysis on the document's characteristic images to improve the printer's print quality and ink usage accuracy. In-depth analysis of time-series defect information is conducted to determine the level of interference from basic operational defects, allowing for adjustments to the target printer based on feedback. Ink usage obstruction information is monitored and alarmed to determine if low print quality is caused by ink or printhead issues, enabling rational management of ink and printhead based on feedback to reduce their impact on print quality. This multi-faceted analysis of factors interfering with poor print quality allows for targeted control measures.

[0006] The objective of this invention can be achieved through the following technical solution: a remote printer control system based on the Internet of Things, including a remote IoT control center, a pre-press security assessment unit, a regional difference verification unit, a basic operation period assessment and analysis unit, an ink usage obstacle quantitative analysis unit, and a printing control unit;

[0007] The remote IoT control center is used to retrieve the IoT permission information of the target printer and send the IoT permission information to the pre-press security assessment unit.

[0008] The prepress security assessment unit is used to perform prepress authentication and transmission assessment feedback analysis on the received IoT permission information. It compares and analyzes the obtained permission string with the authorization list to obtain an authorization signal or an unauthorized signal. When an authorization signal is generated, it further analyzes and judges the obtained IoT risk information to obtain a transmission maintenance signal or a printing signal.

[0009] The regional difference verification unit is used to respond to the printing signal and simultaneously acquire the document feature image after printing by the target printer. It performs regional color difference monitoring feedback analysis on the document feature image, compares and analyzes the obtained image ink difference value and font color difference index, and obtains a high-quality signal or a low-quality signal.

[0010] The basic operation period evaluation and analysis unit is used to respond to low-level quality signals and collect the period defect information of the target printer. At the same time, it performs basic operation defect interference level discrimination analysis on the period defect information, and performs discrimination processing on the obtained operation influence coefficient to obtain the effective operation signal or influence signal.

[0011] The ink usage obstruction quantification analysis unit is used to respond to low-level quality signals and simultaneously collect ink usage obstruction information from the target printer. It performs ink usage monitoring and alarm processing on the ink usage obstruction information to obtain a qualified signal or an alarm signal.

[0012] Preferably, the prepress authentication and transmission evaluation feedback analysis process is as follows:

[0013] The target printer's runtime period is collected and set as a time threshold. IoT permission information between the remote control terminal and the target printer within the time threshold is obtained. The IoT permission information represents the control terminal number. Characters are extracted from the IoT permission information, and the string formed by the extracted characters is set as the permission string. The permission string is compared and analyzed with the authorization list to obtain an authorized signal or an unauthorized signal.

[0014] Preferably, when an authorization signal is generated, IoT risk information between the remote control terminal and the target printer within a time threshold is obtained. The IoT risk information represents the sum of the number of network defect information corresponding to the number of connection drops during the file sending period of the remote control terminal. The defect information includes lag and delay. The IoT risk information is then analyzed to obtain a transmission maintenance signal or a printing signal.

[0015] Preferably, the regional color difference monitoring feedback analysis process is as follows:

[0016] Obtain the feature image of the document printed by the target printer within the time threshold, and divide the feature image of the document into text region image and actual image region;

[0017] The image region in the feature image of the standard file is obtained and set as the standard image region. The actual image region is compared and analyzed with the standard image region to obtain the difference value between the actual image region and the standard image region. This difference value is set as the image ink difference value. The image ink difference value is then analyzed to obtain the color deviation signal or normal signal.

[0018] Preferably, the average actual gray value of the text corresponding to the text region image is obtained, and the average gray value of the text corresponding to the text region image in the standard document feature image is obtained and set as the average standard gray value. The difference between the average actual gray value and the average standard gray value is set as the font color difference index, and the font color difference index is discriminantly analyzed to obtain the ink defect signal or standard signal.

[0019] If both normal and standard signals are generated simultaneously, a high-quality signal is obtained; if neither normal nor standard signals are generated simultaneously, a low-quality signal is obtained.

[0020] Preferably, the basic operational defect interference level discrimination analysis process is as follows:

[0021] The time threshold is divided into i sub-time periods, where i is a natural number greater than zero. Time period defect information of the target printer in each sub-time period is obtained. Time period defect information includes mechanical vibration amplitude and noise characteristic value. The number of values ​​in the time period defect information that exceed the preset threshold is set as the time period risk coefficient.

[0022] The system acquires the time-period parameter information of the target printer within each sub-time period, including operating power and total energy consumption. The number of values ​​in the time-period parameter information that exceed a preset threshold is set as the imbalance offset coefficient. The time-period risk coefficient and imbalance offset coefficient are compared and analyzed with the preset time-period risk coefficient threshold and preset imbalance offset coefficient threshold that are entered and stored internally. The number of time-period risk coefficients and imbalance offset coefficients that are greater than or equal to the preset time-period risk coefficient threshold and preset imbalance offset coefficient threshold is set as the mechanical interference evaluation coefficient. The mechanical interference evaluation coefficient is then analyzed to obtain stable signals and interference signals.

[0023] The number of generated interference signals is obtained, and the number of generated interference signals is set as the operation influence coefficient. The operation influence coefficient is then processed to obtain the operation effective signal or influence signal.

[0024] Preferably, the ink usage monitoring alarm processing procedure is as follows:

[0025] The ink usage obstruction information of the target printer within the time threshold is obtained. The ink usage obstruction information includes the ink cartridge ink level and ink remaining time. The ink remaining time indicates the time between the current date of the ink and the expiration date. The number of ink usage obstruction information values ​​that are lower than the preset threshold is obtained and set as the material interference value.

[0026] The appearance feature image of the printhead inside the target printer is obtained within a time threshold. The appearance feature image is compared and analyzed with the standard appearance feature image. The difference between the appearance feature image and the standard appearance feature image is set as the adhesion obstacle value. The material interference value and the adhesion obstacle value are compared and analyzed with the preset material interference value threshold and the preset adhesion obstacle value threshold recorded and stored in its internal system to obtain a qualified signal or an alarm signal.

[0027] The beneficial effects of this invention are as follows:

[0028] (1) This invention initially analyzes the two aspects of pre-press authentication and transmission evaluation. On the one hand, it helps to understand whether the remote control terminal has printing permissions. On the other hand, it helps to understand the potential transmission risks of the document to be printed, and thus intuitively understand the potential risks before the target printer prints. This allows the document to be verified before printing, so as to ensure the integrity and security of the document to be printed. Furthermore, through information feedback, the regional color difference monitoring feedback analysis of the document feature image is conducted to intuitively understand whether the ink quality of the printed document is qualified, so as to make timely targeted control on the target printer and improve the printing quality and ink accuracy of the printer.

[0029] (2) This invention performs a thorough analysis of the basic operational defect interference level of time-period defect information to understand whether the low print quality is due to the operation of the target printer itself, so as to manage and adjust the target printer based on the information feedback, and to perform ink usage monitoring and alarm processing on ink usage obstruction information to understand whether the low print quality is due to ink and printhead, so as to rationally manage ink and printhead based on the information feedback, so as to reduce the impact of ink quality and printhead management on print quality, and to analyze the interference factors of poor print quality from multiple perspectives, so as to make targeted control. Attached Figure Description

[0030] The invention will now be further described with reference to the accompanying drawings;

[0031] Figure 1 This is a flowchart of the system of the present invention;

[0032] Figure 2 This is a reference diagram for the analysis of the method of this invention. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1:

[0035] Please see Figures 1 to 2 As shown, this invention is an Internet of Things (IoT)-based remote printer control system, including a remote IoT control center, a prepress security assessment unit, a regional difference verification unit, a basic operation period assessment and analysis unit, an ink usage obstruction quantitative analysis unit, and a printing control unit. The remote IoT control center has a one-way communication connection with the prepress security assessment unit, the prepress security assessment unit has a one-way communication connection with both the regional difference verification unit and the printing control unit, the regional difference verification unit has a one-way communication connection with both the basic operation period assessment and analysis unit and the printing control unit, the basic operation period assessment and analysis unit has a one-way communication connection with the printing control unit, and the printing control unit has a two-way communication connection with the ink usage obstruction quantitative analysis unit.

[0036] The remote IoT control center is used to retrieve the IoT permission information of the target printer and send the IoT permission information to the pre-press security assessment unit.

[0037] The prepress security assessment unit is used to perform prepress authentication and transmission assessment feedback analysis on the received IoT permission information to understand whether the remote control terminal has printing permissions and whether the risk of transmitting files is too high. This allows for a direct understanding of the potential risks before printing by the target printer, enabling verification of the documents to be printed to ensure their integrity. The specific prepress authentication and transmission assessment feedback analysis process is as follows:

[0038] The target printer's runtime segment is collected and set as a time threshold. IoT permission information between the remote control terminal and the target printer within this time threshold is obtained. This IoT permission information represents the control terminal number. Characters are extracted from the IoT permission information, and the resulting string is set as the permission string. This permission string is then compared and analyzed against the authorization list.

[0039] If the permission string belongs to the authorization list, an authorization signal is generated;

[0040] If the permission string does not belong to the authorization list, an unauthorized signal is generated. When an unauthorized signal is generated, the authentication page is immediately adjusted to improve the remote control security of the target printer.

[0041] When an authorization signal is generated, IoT risk information between the remote control terminal and the target printer within a time threshold is obtained. This IoT risk information represents the sum of the number of network defect messages and the number of connection drops that occurred during the file transmission period from the remote control terminal. Defect messages include lag, latency, etc. The IoT risk information is then analyzed and discriminated.

[0042] If the IoT risk information is greater than or equal to the preset IoT risk information threshold, a transmission operation and maintenance signal will be generated.

[0043] If the IoT risk information is less than the preset IoT risk information threshold, a printing signal is generated, and the transmission maintenance signal or printing signal is sent to the printing control unit. After receiving the transmission maintenance signal or printing signal, the printing control unit immediately displays the preset warning text corresponding to the transmission maintenance signal or printing signal, so as to intuitively understand the potential risks before the target printer prints, so as to verify the documents to be printed before printing, and ensure the integrity of the documents to be printed.

[0044] When a print signal is generated, the regional difference verification unit responds to the print signal and simultaneously acquires a feature image of the document printed by the target printer. It then performs regional color difference monitoring and feedback analysis on the document feature image to intuitively understand whether the ink quality of the printed document is up to standard. This allows for timely and targeted control of the target printer, improving print quality and ink accuracy. The specific regional color difference monitoring and feedback analysis process is as follows:

[0045] Obtain the feature image of the document printed by the target printer within the time threshold, and divide the feature image of the document into text region image and actual image region;

[0046] The image region in the feature image of the standard file is obtained and set as the standard image region. The actual image region is compared and analyzed with the standard image region to obtain the difference value between the actual image region and the standard image region. This difference value is set as the image ink difference value, and the image ink difference value is discriminantly analyzed.

[0047] If the difference in ink usage in the image is greater than or equal to the preset threshold for difference in ink usage in the image, a color deviation signal is generated.

[0048] If the difference in ink usage in the image is less than the preset threshold for difference in ink usage in the image, a normal signal is generated.

[0049] The average grayscale value of the text corresponding to the text region image is obtained, and the average grayscale value of the text corresponding to the text region image in the standard document feature image is also obtained. This average grayscale value is set as the standard average grayscale value. The difference between the average actual grayscale value and the average standard grayscale value is set as the font color difference index, and the font color difference index is subjected to discriminant analysis.

[0050] If the font color difference index is greater than or equal to the preset font color difference index threshold, an ink defect signal is generated;

[0051] If the font color difference index is less than the preset font color difference index threshold, a standard signal is generated;

[0052] If both normal and standard signals are generated simultaneously, a high-quality signal is obtained.

[0053] If neither a normal signal nor a standard signal is generated simultaneously, a low-quality signal is obtained. The high-quality signal or the low-quality signal is then sent to the print control unit. Upon receiving the high-quality signal or the low-quality signal, the print control unit immediately displays the preset warning text corresponding to the high-quality signal or the low-quality signal, so as to intuitively understand whether the ink quality of the printed document is up to standard, and to promptly take targeted control measures on the target printer to improve the printer's print quality and ink accuracy.

[0054] Example 2:

[0055] When a low-quality signal is generated, the basic operation period evaluation and analysis unit responds to the low-quality signal and collects the period defect information of the target printer. Simultaneously, it performs basic operation defect interference level discrimination analysis on the period defect information to understand whether the low print quality is due to the target printer's own operation. Based on the feedback, the unit can then manage and adjust the target printer accordingly. The specific basic operation defect interference level discrimination analysis process is as follows:

[0056] The time threshold is divided into i sub-time periods, where i is a natural number greater than zero. The time period defect information of the target printer in each sub-time period is obtained. The time period defect information includes mechanical vibration amplitude, noise characteristic value, etc. The number of values ​​in the time period defect information that exceed the preset threshold is set as the time period risk coefficient. It should be noted that the time period risk coefficient is a parameter that reflects the impact of the operating conditions of the target printer during operation.

[0057] The time period parameter information of the target printer in each sub-time period is obtained. The time period parameter information includes operating power, total energy consumption, etc. The number of values ​​in the time period parameter information that exceed the preset threshold is set as the imbalance offset coefficient. It should be noted that the imbalance offset coefficient is a parameter that reflects the impact of the operating conditions of the target printer during operation. The larger the value of the imbalance offset coefficient, the greater the risk of abnormal operation of the target printer.

[0058] The time-period risk coefficient and imbalance offset coefficient are compared and analyzed with the preset time-period risk coefficient threshold and preset imbalance offset coefficient threshold that are entered and stored internally. The number of time-period risk coefficients and imbalance offset coefficients that are greater than or equal to the preset time-period risk coefficient threshold and preset imbalance offset coefficient threshold is set as the mechanical interference evaluation coefficient, and the mechanical interference evaluation coefficient is subjected to discriminant analysis.

[0059] If the mechanical interference evaluation coefficient = 0, then a stable signal is generated;

[0060] If the mechanical interference evaluation coefficient = 1 or the mechanical interference evaluation coefficient = 2, then an interference signal is generated.

[0061] The number of generated interference signals is obtained, and this number is set as the operation influence coefficient. The operation influence coefficient is then processed for discrimination.

[0062] If the operation influence coefficient is equal to zero, then an operation valid signal is generated;

[0063] If the operation impact coefficient is not equal to zero, an impact signal is generated and the operation valid signal or impact signal is sent to the print control unit. After receiving the operation valid signal or impact signal, the print control unit immediately displays the preset warning text corresponding to the operation valid signal or impact signal in order to understand whether the operation of the target printer itself has an impact on the print quality, so as to manage and adjust the target printer according to the information feedback to improve the print quality.

[0064] When a low-quality signal is generated, the ink usage obstruction quantification analysis unit responds to the low-quality signal and simultaneously collects ink usage obstruction information from the target printer. It then performs ink usage monitoring and alarm processing on this information to determine if the low print quality is caused by ink or printhead issues. Based on the feedback, it allows for more rational management of ink and printhead to reduce the impact of ink quality and printhead management on print quality. The specific ink usage monitoring and alarm processing procedure is as follows:

[0065] The ink usage obstruction information of the target printer within the time threshold is obtained. The ink usage obstruction information includes the ink cartridge ink level and ink elapsed date. The ink elapsed date indicates the time between the current date of the ink and the expiration date. The number of ink usage obstruction information values ​​that are lower than the preset threshold is obtained and set as the material interference value. It should be noted that the larger the material interference value, the greater the risk of abnormal ink usage effect of the target printer.

[0066] The appearance feature image of the printhead inside the target printer is obtained within a time threshold. The appearance feature image is compared and analyzed with the standard appearance feature image. The difference between the appearance feature image and the standard appearance feature image is set as the adhesion obstacle value. It should be noted that the larger the value of the adhesion obstacle value, the greater the risk of printhead clogging and inkjet runaway in the target printer.

[0067] The material interference value and adhesion obstacle value are compared and analyzed with the preset material interference value threshold and preset adhesion obstacle value threshold that are entered and stored internally:

[0068] If the material interference value is less than the preset material interference value threshold and the adhesion obstacle value is less than the preset adhesion obstacle value threshold, then a qualified signal is generated.

[0069] If the material interference value is less than the preset material interference value threshold and the adhesion obstacle value is less than the preset adhesion obstacle value threshold, an alarm signal is generated. The qualified signal or alarm signal is sent to the print control unit. After receiving the qualified signal or alarm signal, the print control unit immediately displays the preset warning text corresponding to the qualified signal or alarm signal, so as to rationally manage the ink and printhead based on the information feedback, so as to reduce the impact of ink quality and printhead management on print quality, thereby helping to improve the control effect and operational reliability of the target printer.

[0070] Example 3:

[0071] The method for remote printer control based on the Internet of Things includes the following steps:

[0072] Step 1: Used to retrieve IoT permission information, and simultaneously perform pre-press authentication and transmission evaluation feedback analysis on the IoT permission information. If an authorization signal is obtained, proceed to Step 2; if an unauthorized signal is obtained, output feedback.

[0073] Step 2: Based on the prepress transmission evaluation and analysis under the authorization signal, the collected IoT risk information is analyzed and judged. If the printing signal is obtained, proceed to step 3. If the transmission operation and maintenance signal is obtained, the feedback output is provided.

[0074] Step 3: Based on the information progression method, perform regional color difference monitoring feedback analysis, compare and analyze the obtained image ink difference value and font color difference index, and output the obtained high-quality signal or low-quality signal.

[0075] Step 4: In response to low-level quality signals, perform basic operation defect interference level discrimination analysis from the perspective of basic operation of the target printer, process the obtained operation influence coefficient, and feed back the obtained effective operation signal or influence signal.

[0076] Step 5: In response to low-quality signals, ink usage monitoring and alarm processing are performed from two points: ink and printhead of the target printer. The obtained material interference value and adhesion obstacle value are compared and analyzed, and the obtained qualified signal or alarm signal is fed back and output.

[0077] A computer-readable storage medium storing a computer program that, when executed by a processor, implements an Internet of Things-based remote printer control method.

[0078] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods.

[0079] In summary, this invention initially analyzes the issue from two aspects: pre-press authentication and transmission evaluation. On the one hand, it helps to understand whether the remote control terminal has printing permissions; on the other hand, it helps to understand the potential transmission risks of the document to be printed, thereby intuitively understanding the potential risks before printing by the target printer. This allows for verification of the document before printing, ensuring the integrity and security of the document. Furthermore, through information feedback, it performs regional color difference monitoring and feedback analysis on the document feature image, so as to intuitively understand whether the ink quality of the printed document is up to standard, and to make timely targeted control over the target printer to improve the printer's printing quality and ink accuracy.

[0080] By conducting in-depth analysis of the basic operational defect interference levels in the time-period defect information, we can understand whether the low print quality is due to the target printer's own operation. Based on the feedback, we can manage and adjust the target printer accordingly. We can also monitor and alarm for ink usage obstruction information to understand whether the low print quality is caused by ink or printhead issues. Based on the feedback, we can rationally manage ink and printhead to reduce the impact of ink quality and printhead management on print quality. This allows us to analyze the interfering factors of poor print quality from multiple perspectives and make targeted controls.

[0081] The threshold is set to facilitate comparison. The size of the threshold depends on the amount of sample data and the number of bases set by those skilled in the art for each set of sample data; as long as it does not affect the ratio between the parameter and the quantized value, it is acceptable.

[0082] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A printer remote control system based on the Internet of Things, characterized in that, It includes a remote IoT control center, a pre-press security assessment unit, a regional difference verification unit, a basic operation period assessment and analysis unit, an ink usage obstacle quantitative analysis unit, and a printing control unit; The remote IoT control center is used to retrieve the IoT permission information of the target printer and send the IoT permission information to the pre-press security assessment unit. The prepress security assessment unit is used to perform prepress authentication and transmission assessment feedback analysis on the received IoT permission information. It compares and analyzes the obtained permission string with the authorization list to obtain an authorization signal or an unauthorized signal. When an authorization signal is generated, it further analyzes and judges the obtained IoT risk information to obtain a transmission maintenance signal or a printing signal. The regional difference verification unit is used to respond to the printing signal and simultaneously acquire the document feature image after printing by the target printer. It performs regional color difference monitoring feedback analysis on the document feature image, compares and analyzes the obtained image ink difference value and font color difference index, and obtains a high-quality signal or a low-quality signal. The basic operation period evaluation and analysis unit is used to respond to low-level quality signals and collect the period defect information of the target printer. At the same time, it performs basic operation defect interference level discrimination analysis on the period defect information, and performs discrimination processing on the obtained operation influence coefficient to obtain the effective operation signal or influence signal. The ink obstruction quantification analysis unit is used to respond to low-level quality signals, while simultaneously collecting ink obstruction information from the target printer, performing ink obstruction monitoring and alarm processing on the ink obstruction information, and obtaining a qualified signal or an alarm signal. The process for determining the magnitude of interference from basic operational defects is as follows: The time threshold is divided into i sub-time periods, where i is a natural number greater than zero. Time period defect information of the target printer in each sub-time period is obtained. Time period defect information includes mechanical vibration amplitude and noise characteristic value. The number of values ​​in the time period defect information that exceed the preset threshold is set as the time period risk coefficient. The target printer's time period parameter information is obtained for each sub-time period. The time period parameter information includes operating power and total energy consumption. The number of values ​​in the time period parameter information that exceed the preset threshold is set as the imbalance offset coefficient. The time period risk coefficient and imbalance offset coefficient are compared and analyzed with the preset time period risk coefficient threshold and preset imbalance offset coefficient threshold that are entered and stored internally. The number of time period risk coefficients and imbalance offset coefficients that are greater than or equal to the preset time period risk coefficient threshold and preset imbalance offset coefficient threshold is set as the mechanical interference evaluation coefficient. The mechanical interference evaluation coefficient is then analyzed to obtain the stable signal and the interference signal. The number of generated interference signals is obtained, and the number of generated interference signals is set as the operation influence coefficient. The operation influence coefficient is then processed to obtain the operation effective signal or the influence signal.

2. The Internet of Things-based remote printer control system according to claim 1, characterized in that, The pre-press authentication and transmission evaluation feedback analysis process is as follows: The target printer's runtime period is collected and set as a time threshold. IoT permission information between the remote control terminal and the target printer within the time threshold is obtained. The IoT permission information represents the control terminal number. Characters are extracted from the IoT permission information, and the string formed by the extracted characters is set as the permission string. The permission string is compared and analyzed with the authorization list to obtain an authorized signal or an unauthorized signal.

3. The Internet of Things-based remote printer control system according to claim 2, characterized in that, When an authorization signal is generated, IoT risk information between the remote control terminal and the target printer within a time threshold is obtained. The IoT risk information is the sum of the number of network defect information corresponding to the number of connection drops during the time period when the remote control terminal sends files. Defect information includes lag and delay. The IoT risk information is then analyzed to obtain transmission maintenance signals or printing signals.

4. The Internet of Things-based remote printer control system according to claim 1, characterized in that, The regional color difference monitoring feedback analysis process is as follows: Obtain the feature image of the document printed by the target printer within the time threshold, and divide the feature image of the document into text region image and actual image region; The image region in the feature image of the standard file is obtained and set as the standard image region. The actual image region is compared and analyzed with the standard image region to obtain the difference value between the actual image region and the standard image region. This difference value is set as the image ink difference value. The image ink difference value is then analyzed to obtain the color deviation signal or normal signal.

5. The Internet of Things-based remote printer control system according to claim 4, characterized in that, The average actual gray value of the text corresponding to the text region image is obtained, and the average gray value of the text corresponding to the text region image in the standard file feature image is obtained and set as the standard gray value average. The difference between the actual gray value average and the standard gray value average is set as the font color difference index, and the font color difference index is discriminantly analyzed to obtain the ink defect signal or standard signal. If both normal and standard signals are generated simultaneously, a high-quality signal is obtained; if neither normal nor standard signals are generated simultaneously, a low-quality signal is obtained.

6. The Internet of Things-based remote printer control system according to claim 1, characterized in that, The ink usage monitoring alarm processing procedure is as follows: The ink usage obstruction information of the target printer within the time threshold is obtained. The ink usage obstruction information includes the ink cartridge ink level and ink remaining time. The ink remaining time indicates the time between the current date of the ink and the expiration date. The number of ink usage obstruction information values ​​that are lower than the preset threshold is obtained and set as the material interference value. The appearance feature image of the printhead inside the target printer is obtained within a time threshold. The appearance feature image is compared and analyzed with the standard appearance feature image. The difference between the appearance feature image and the standard appearance feature image is set as the adhesion obstacle value. The material interference value and the adhesion obstacle value are compared and analyzed with the preset material interference value threshold and the preset adhesion obstacle value threshold recorded and stored in its internal system to obtain a qualified signal or an alarm signal.

7. A method for remote control of printers based on the Internet of Things (IoT), applicable to the remote control system for printers based on the IoT as described in any one of claims 2-6, characterized in that, Includes the following steps: Step 1: Used to retrieve IoT permission information, and simultaneously perform pre-press authentication and transmission evaluation feedback analysis on the IoT permission information. If an authorization signal is obtained, proceed to Step 2; if an unauthorized signal is obtained, output feedback. Step 2: Based on the prepress transmission evaluation and analysis under the authorization signal, the collected IoT risk information is analyzed and judged. If the printing signal is obtained, proceed to step 3. If the transmission operation and maintenance signal is obtained, the feedback output is provided. Step 3: Based on the information progression method, perform regional color difference monitoring feedback analysis, compare and analyze the obtained image ink difference value and font color difference index, and output the obtained high-quality signal or low-quality signal. Step 4: In response to low-level quality signals, perform basic operation defect interference level discrimination analysis from the perspective of basic operation of the target printer, process the obtained operation influence coefficient, and feed back the obtained effective operation signal or influence signal. Step 5: In response to low-quality signals, ink usage monitoring and alarm processing are performed from two points: the ink level and the printhead of the target printer. The obtained material interference value and adhesion obstacle value are compared and analyzed, and the obtained qualified signal or alarm signal is fed back and output.

8. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in claim 7.

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