CN114721613B - Remote control method and system for printing machine - Google Patents

Abstract

The invention is applicable to the technical field of remote control, and in particular relates to a remote control method and system for a printing press. The method includes: acquiring a document to be printed and collecting a set of random data; decomposing the content of the document to be printed to obtain a document background data and file content data; retrieve the preset encryption scheme according to random data, encrypt the content of the file content data to obtain encrypted content data; transmit the file background data, encrypted content data and random data to the printing machine, receive and display the data from the printing machine The machine interface passed by the machine. The invention extracts the text content of the document to be printed, transmits it with the characteristics of printing information, and restores it in the printing machine, reduces the data processing amount, ensures the safety of data transmission, and synchronously performs the printing operation on the working interface of the printing machine. Feedback, which is convenient for users to grasp the working status of the printing press in real time, and improves the intuitiveness of remote control.

Description

A remote control method and system for a printing press

technical field

The invention belongs to the technical field of remote control, and in particular relates to a remote control method and system for a printing press.

Background technique

A printing press is a machine that prints words and images. Modern printing presses are generally composed of plates, inking, embossing, and paper feeding. Its working principle is: first make the text and images to be printed into a printing plate, install it on the printing machine, and then manually or by the printing machine apply the ink to the place where the text and images are on the printing plate, and then directly or indirectly transfer the ink. Printing onto paper or other substrate to reproduce the same print as the printing plate.

In the current use of printing presses, data is generally input manually, which is offline data, and some networked printing presses can receive files from the network and then print them, but in the prior art, manual operation is the main method. .

In the prior art, a printing press with a remote control function requires a large bandwidth when transmitting data, and congestion is prone to occur when multiple files are transmitted.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present invention is to provide a remote control method for a printing press, which aims to solve the problems raised in the third part of the background art.

The embodiments of the present invention are implemented as a remote control method for a printing press, the method comprising:

Obtaining the document to be printed and collecting a set of random data, the random data is the data randomly collected from the equipment;

Decompose the content of the document to be printed to obtain the document background data and the document content data;

According to the random data retrieval preset encryption scheme, the content of the file content data is encrypted to obtain the encrypted content data;

Transfer file background data, encrypted content data and random data to the printing press, receive and display the machine interface passed from the printing press.

Preferably, the step of decomposing the content of the document to be printed to obtain the document background data and the document content data specifically includes:

Perform text recognition on the printed document, identify the text content, and obtain the text text;

Position the size and text position of each text contained in the text to obtain text auxiliary information;

The document background is extracted from the document to be printed, and the document background data and the document content data are generated.

Preferably, the step of retrieving a preset encryption scheme according to random data, performing content encryption on the file content data, and obtaining the encrypted content data, specifically includes:

Standardize random data to obtain standard data;

Substitute the standard data into the preset encryption scheme determination function, and call the corresponding encryption scheme according to the result;

Encrypt the content according to the encryption scheme, change the text content in the content data of the file, and obtain the encrypted content data.

Preferably, the step of transmitting the file background data, encrypted content data and random data to the printing press, and receiving and displaying the machine interface transmitted from the printing press, specifically includes:

Transfer file background data, encrypted content data and random data to the printing press, and query the model parameters of the printing press;

Run the corresponding simulated printing system according to the model parameters of the printing machine, and simulate the operation instructions uploaded from the printing machine;

Update the currently displayed machine interface according to the operation instructions.

Preferably, the operation instructions uploaded by the printing machine are encrypted and decrypted after being received.

Preferably, the document background data includes background size information and background pattern information.

Another object of the embodiments of the present invention is to provide a remote control system for a printing press, the system comprising:

a data acquisition module, used for acquiring the document to be printed and collecting a set of random data, the random data being the data randomly collected from the equipment;

The file decomposition module is used to decompose the content of the document to be printed to obtain the file background data and the file content data;

The data encryption module is used to retrieve the preset encryption scheme according to the random data, and encrypt the content data of the file to obtain the encrypted content data;

The data transmission module is used to transmit file background data, encrypted content data and random data to the printing press, and receive and display the machine interface transmitted from the printing press.

Preferably, the file decomposition module includes:

The text extraction unit is used to perform text recognition on the document to be printed, identify the text content, and obtain the text text;

The text positioning unit is used to locate the size and text position of each text contained in the text to obtain text auxiliary information;

The background extraction unit is used for extracting the document background from the document to be printed, and generating document background data and document content data.

Preferably, the data encryption module includes:

The data standardization unit is used to standardize the random data to obtain standard data;

a scheme retrieving unit, used for substituting the standard data into the preset encryption scheme determination function, and retrieving the corresponding encryption scheme according to the result;

The text encryption unit is used to encrypt the content according to the encryption scheme, change the text content in the file content data, and obtain the encrypted content data.

Preferably, the data transmission module includes:

A data query unit, used to transmit file background data, encrypted content data and random data to the printing press, and query the model parameters of the printing press;

The system simulation unit is used to run the corresponding simulation printing system according to the model parameters of the printing machine, and simulate the execution of the operation instructions uploaded from the printing machine;

The interface updating unit is used to update the currently displayed machine interface according to the operation instruction.

A remote control method for a printing press provided by an embodiment of the present invention reduces the amount of data processing by extracting the text content of a document that needs to be printed, transmits it with the characteristics of printing information, and restores it in the printing press. The security of data transmission, and synchronous feedback to the working interface of the printing press, is convenient for users to grasp the working status of the printing press in real time, and improves the intuitiveness of remote control.

Description of drawings

1 is a flowchart of a remote control method for a printing press provided by an embodiment of the present invention;

Fig. 2 is the flow chart of the steps of decomposing the content of the document to be printed, and obtaining the document background data and the document content data provided by the embodiment of the present invention;

3 is a flowchart of a step of retrieving a preset encryption scheme according to random data, performing content encryption on file content data, and obtaining encrypted content data according to an embodiment of the present invention;

4 is a flowchart of the steps of transmitting file background data, encrypted content data and random data to a printing press, and receiving and displaying a machine interface transmitted from the printing press, provided by an embodiment of the present invention;

5 is a schematic diagram of a remote control system for a printing press provided by an embodiment of the present invention;

6 is an architecture diagram of a file decomposition module provided by an embodiment of the present invention;

7 is an architectural diagram of a data encryption module provided by an embodiment of the present invention;

FIG. 8 is an architectural diagram of a data transmission module according to an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

It will be understood that the terms "first", "second" and the like used in this application may be used herein to describe various elements, but these elements are not limited by these terms unless otherwise specified. These terms are only used to distinguish a first element from another element. For example, a first xx script could be referred to as a second xx script, and similarly, a second xx script could be referred to as a first xx script, without departing from the scope of this application.

As shown in FIG. 1, it is a flowchart of a remote control method for a printing press provided by an embodiment of the present invention, and the method includes:

S100: Acquire a document to be printed and collect a set of random data, where the random data is data randomly collected from a device.

In this step, the document to be printed is acquired and a set of random data is collected. This method is applied to mobile devices, such as mobile phones, tablet computers and other devices. The document to be printed is the document that needs to be transmitted to the printing press this time, and the document to be printed can be It is a picture format or a document format, and random data is collected directly from the device. For example, the data currently being transmitted by the device is directly obtained, and the data of the preset byte length is randomly copied as random data. It can also be an image captured by the device, from Copy the data of the preset byte length in the image, and also record the change data of the current somewhere in the device to ensure that the total byte length is the preset length.

S200, decompose the content of the document to be printed to obtain document background data and document content data.

In this step, the content of the document to be printed is decomposed. For the document to be printed, if it is directly transmitted, the data to be transmitted is relatively large. When multiple files are transmitted at the same time, there are certain requirements for bandwidth. The bandwidth transmission channel is prone to congestion. By decomposing the content, the contained text content is extracted separately, and the background content is converted into paper size and pattern information, that is, the file background data and file content data are obtained.

S300, according to the random data retrieval preset encryption scheme, content encryption is performed on the file content data to obtain encrypted content data.

In this step, the preset encryption scheme is retrieved according to the random data, multiple encryption schemes are preset in the equipment and the printing press, and a set of functions are set, and the random data is used as the variable source, and the encryption scheme to be selected is determined according to the function. Since the random data is randomly collected from the device, the data cannot be directly predicted, so it is impossible to predict which encryption scheme will be used in the end. Interception will not lead to information leakage.

S400, transmit the file background data, encrypted content data and random data to the printing press, and receive and display the machine interface transmitted from the printing press.

In this step, file background data, encrypted content data and random data are transmitted to the printing machine. The printing machine has built-in encryption schemes and corresponding functions. At the same time, the encrypted data is also transmitted to the printing machine. The sum function determines the encryption scheme, and then decrypts the encrypted content data according to the encryption scheme. After the decryption is completed, the file to be printed is generated according to the background data of the transmission file and the content data of the file, and the printing is performed. During the printing process, the printing machine uploads its own model and parameters, after the equipment receives the model of the printing machine, it calls the simulation system of the printing machine and runs it, displays it according to the operating parameters uploaded by the printing machine, and simultaneously transmits the control operation instructions to the printing machine to realize remote control.

As shown in Figure 2, as a preferred embodiment of the present invention, the steps of decomposing the content of the document to be printed to obtain the document background data and the document content data specifically include:

S201 , character recognition is performed on the document to be printed, the content of the character is recognized, and the character text is obtained.

In this step, text recognition is performed on the document to be printed, and the text content contained in the document to be printed is determined line by line by means of text recognition, that is, the text text is obtained. In this process, the number of pixels occupied by each text is counted, Thus, the size of each text is determined, and the size is represented by the proportion of the region where the text is located in the current page. If the current page size is A, and the text occupies an area of 0.001 of the current page, the text size is 0.001A.

S202 , locating the size and the position of each character included in the text to obtain text auxiliary information.

In this step, the size and text position of each character contained in the text are positioned, the center position of the area occupied by each character is determined according to the size of each character, and the length and width of the current page are determined according to the center position. The division ratio, such as the size of the current page is B*C, and a certain text is located in the center of the page, then the position of the text is (0.5B, 0.5C), according to which the position of each character is determined, and the auxiliary text information is obtained.

S203, extract the document background from the document to be printed, and generate document background data and document content data.

In this step, the document background is extracted from the document to be printed, and after the text recognition is completed, the text is removed from the document to be printed, the size of the background part is determined, and the pattern contained in the background part is extracted from it, and if there is no pattern, record the For the color of the background, for the extracted pattern, record the location and page of the pattern, and use it as the file background data; the file background data includes background size information and background pattern information.

As shown in FIG. 3 , as a preferred embodiment of the present invention, the step of retrieving a preset encryption scheme according to random data, performing content encryption on file content data, and obtaining encrypted content data, specifically includes:

S301, standardize the random data to obtain standard data.

In this step, the random data is standardized, and the random data is converted into decimal, that is, standard data is obtained.

S302: Substitute the standard data into the preset encryption scheme determination function, and retrieve the corresponding encryption scheme according to the result.

In this step, the standard data is substituted into the preset encryption scheme determination function, and the standard data is substituted into it as an independent variable, so that the calculation is performed according to the encryption scheme determination function, and the calculation result is obtained, and the encryption scheme is selected according to the calculation result, There are a large number of encryption schemes in the printing press and equipment, and the selection is made according to the interval where the calculation result is located. For example, 1-100 is divided into four parts, and each part corresponds to an encryption scheme. The interval range can determine the corresponding encryption scheme.

S303: Encrypt the content according to the encryption scheme, change the text content in the file content data, and obtain encrypted content data.

In this step, the content is encrypted according to an encryption scheme, and the content recorded in the encryption scheme is a scheme for replacing text characters. For example, according to one of the encryption schemes, the text content is converted into binary, the random data is converted into binary, and then Every 20 bytes, binary random data is used to replace the data of the same byte length in the binary text content, so as to realize the effect of changing the text content in the file content data, and obtain encrypted content data.

As shown in Figure 4, as a preferred embodiment of the present invention, the steps of transmitting the file background data, encrypted content data and random data to the printing press, and receiving and displaying the machine interface transmitted from the printing press, specifically include:

S401 , transmitting file background data, encrypted content data and random data to a printing press, and querying the model parameters of the printing press.

In this step, the file background data, encrypted content data and random data are transmitted to the printing press. Since the encrypted content data has been encrypted, decrypting the encrypted content data needs to obtain random data, encryption scheme determination function and all encryption schemes at the same time. Therefore, even if the data is hijacked, it cannot be decrypted, which ensures the security of the data, and sends a query request to the printing press to receive the model parameters sent by the printing press.

S402, run the corresponding simulated printing system according to the model parameters of the printing press, and simulate and execute the operation instruction uploaded from the printing press.

S403, update the currently displayed machine interface according to the operation instruction.

In this step, the corresponding simulated printing system is run according to the model parameters of the printing press to display, so as to determine the user to perform the operation according to the position where the user clicks on the screen of the device, and send it to the printing press. The display data is sent back, so that the display interface can be updated according to the display data; the operation instructions uploaded by the printing machine are encrypted and decrypted after receiving.

As shown in FIG. 5 , a remote control system for a printing press provided by an embodiment of the present invention includes:

The data acquisition module 100 is used for acquiring the document to be printed and collecting a set of random data, where the random data is the data randomly collected from the device.

In this system, the data acquisition module 100 acquires the document to be printed and collects a set of random data. This method is applied to mobile devices, such as mobile phones, tablet computers and other devices. The document to be printed is the document that needs to be transmitted to the printing press this time. The file to be printed can be in picture format or document format, and random data is directly collected from the device, such as directly obtaining the data currently being transmitted by the device, and randomly copying data with a preset byte length from it as random data, or it can be captured by the device. It can copy the data of the preset byte length from the image, and also record the change data of the current somewhere in the device, so as to ensure that the total byte length is the preset length.

The file decomposing module 200 is used for decomposing the content of the document to be printed to obtain document background data and document content data.

In this system, the file decomposing module 200 decomposes the content of the file to be printed. For the file to be printed, if it is directly transmitted, the data to be transmitted is relatively large. When multiple files are transmitted at the same time, the bandwidth will be limited. It is required that for low-bandwidth transmission channels, congestion is prone to occur. By decomposing the content, the contained text content is extracted separately, and the background content is converted into paper size and pattern information, that is, the file background data and file content data are obtained. .

The data encryption module 300 is configured to retrieve a preset encryption scheme according to the random data, perform content encryption on the file content data, and obtain encrypted content data.

In this system, the data encryption module 300 retrieves a preset encryption scheme according to random data, presets multiple encryption schemes in the equipment and the printing press, and sets a set of functions, and uses random data as a variable source to determine according to the function Which encryption scheme to use, since the random data is randomly collected from the device, the data cannot be directly predicted, so it is impossible to predict which encryption scheme to use in the end. After the encryption is completed, the text content in the document to be printed is changed It will not cause information leakage even if it is intercepted.

The data transmission module 400 is used for transmitting document background data, encrypted content data and random data to the printing press, and receiving and displaying the machine interface transmitted from the printing press.

In this system, the data transmission module 400 transmits file background data, encrypted content data and random data to the printing press. The printing press has built-in encryption schemes and corresponding functions. At the same time, since the encrypted data is also transmitted to the printing press at the same time, similarly, printing The computer determines the encryption scheme according to the encrypted data and functions, and then decrypts the encrypted content data according to the encryption scheme. After the decryption is completed, the file to be printed is generated according to the background data of the transmitted file and the content data of the file, and then printed. During the printing process, the printing machine Upload its own model and parameters. After the device receives the model of the printing press, it will call the printing press simulation system and run it, display it according to the operating parameters uploaded by the printing press, and at the same time, download the control operation instructions to the printing press to realize remote control.

As shown in FIG. 6, as a preferred embodiment of the present invention, the file decomposition module 200 includes:

The text extraction unit 201 is configured to perform text recognition on the to-be-printed document, recognize the text content, and obtain the text text.

In this module, the text extraction unit 201 performs text recognition on the document to be printed, and uses the method of text recognition to determine the text content contained in the document to be printed line by line, that is, the text text is obtained. , so as to determine the size of each text, which is represented by the proportion of the area where the text is located in the current page.

The character locating unit 202 is used for locating the size and character position of each character included in the character text to obtain text auxiliary information.

In this module, the text positioning unit 202 locates the size and text position of each character contained in the text, determines the center position of the area occupied by each character according to the size of each character, and locates the current page according to the center position. The ratio of length and width division.

The background extraction unit 203 is configured to extract the document background from the document to be printed, and generate document background data and document content data.

In this module, the background extraction unit 203 extracts the document background from the document to be printed. After the text recognition is completed, it removes the text from the document to be printed, determines the size of the background portion, and extracts the pattern contained in the background portion. The pattern records the color of the background. For the extracted pattern, record the location and page of the pattern as the file background data; the file background data includes background size information and background pattern information.

As shown in FIG. 7, as a preferred embodiment of the present invention, the data encryption module 300 includes:

The data standardization unit 301 is used for standardizing the random data to obtain standard data.

In this module, the data standardization unit 301 performs standardization processing on the random data, and converts the random data into decimal system, that is, standard data is obtained.

The scheme retrieval unit 302 is used for substituting the standard data into the preset encryption scheme determination function, and fetching the corresponding encryption scheme according to the result.

In this module, the scheme retrieval unit 302 substitutes the standard data into the preset encryption scheme determination function, and substitutes the standard data into it as an independent variable, so as to perform calculation according to the encryption scheme determination function to obtain the calculation result, and perform the calculation according to the calculation result. The choice of encryption scheme, a large number of encryption schemes are set in the printing machine and equipment, and the selection is made according to the interval where the calculation result is located. For example, 1-100 is divided into four parts, each part corresponds to an encryption scheme, By judging the interval range of the calculation result, the corresponding encryption scheme can be determined.

The text encryption unit 303 is configured to encrypt the content according to the encryption scheme, change the text content in the file content data, and obtain the encrypted content data.

In this module, the text encryption unit 303 encrypts the content according to the encryption scheme, and the content recorded in the encryption scheme is a scheme for replacing text characters. For example, according to one of the encryption schemes, the text content is converted into binary, and the random data is converted into It is binary, and then every 20 bytes, binary random data is used to replace the data of the same byte length in the binary text content, so as to realize the effect of changing the text content in the file content data, and obtain encrypted content data.

As shown in FIG. 8, as a preferred embodiment of the present invention, the data transmission module 400 includes:

The data query unit 401 is used for transmitting document background data, encrypted content data and random data to a printing press, and querying the model parameters of the printing press.

In this module, the data query unit 401 transmits file background data, encrypted content data and random data to the printing press. Since the encrypted content data has been encrypted, decrypting the encrypted content data needs to obtain random data and encryption scheme determination function at the same time. And all encryption schemes, therefore, even if the data is hijacked, it cannot be decrypted, the security of the data is guaranteed, and a query request is sent to the printing press to receive the model parameters sent by the printing press.

The system simulation unit 402 is used for running a corresponding simulated printing system according to the model parameters of the printing press, and simulates executing the operation instructions uploaded from the printing press.

The interface updating unit 403 is configured to update the currently displayed machine interface according to the operation instruction.

In this module, the system simulation unit 402 runs the corresponding simulation printing system according to the model parameters of the printing press, and displays it, so as to determine the user to perform the operation according to the position where the user clicks on the screen of the device, and sends it to the printing press. In the case of execution, the display data is sent back, so that the display interface can be updated according to the display data; the operation instructions uploaded by the printing machine are encrypted and decrypted after receiving.

It should be understood that although the steps in the flowcharts of the embodiments of the present invention are sequentially displayed in accordance with the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order, and the steps may be executed in other orders. Moreover, at least a part of the steps in each embodiment may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed and completed at the same time, but may be executed at different times. The order of execution is also not necessarily sequential, but may be performed alternately or alternately with other steps or sub-steps of other steps or at least a portion of a phase.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium , when the program is executed, it may include the flow of the above-mentioned method embodiments. Wherein, any reference to memory, storage, database or other medium used in the various embodiments provided in this application may include non-volatile and/or volatile memory. Nonvolatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Road (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM) and so on.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (6)

1. A remote control method for a printing press, wherein the method comprises: Obtaining the document to be printed and collecting a set of random data, the random data is the data randomly collected from the equipment; Decompose the content of the document to be printed to obtain the document background data and the document content data; According to the random data retrieval preset encryption scheme, the content of the file content data is encrypted, and the encrypted content data is obtained; Transmit file background data, encrypted content data and random data to the printing press, receive and display the machine interface transmitted from the printing press; The step of retrieving a preset encryption scheme according to random data, performing content encryption on the file content data, and obtaining the encrypted content data, specifically includes: Standardize random data to obtain standard data; Substitute the standard data into the preset encryption scheme determination function, and call the corresponding encryption scheme according to the result; Encrypt the content according to the encryption scheme, change the text content in the file content data, and obtain the encrypted content data; The steps of transmitting the file background data, encrypted content data and random data to the printing press, and receiving and displaying the machine interface transmitted from the printing press, specifically include: Transfer file background data, encrypted content data and random data to the printing press, and query the model parameters of the printing press; Run the corresponding simulated printing system according to the model parameters of the printing machine to display, so as to determine the user's execution operation according to the position of the user's click on the device screen, and send it to the printing machine, and the printing machine will transmit the display data back according to the execution situation; The display interface is updated according to the display data. 2. The remote control method for a printing press according to claim 1, wherein the content decomposition of the document to be printed to obtain the file background data and the file content data specifically comprises: Perform text recognition on the printed document, identify the text content, and obtain the text text; Position the size and text position of each text contained in the text to obtain text auxiliary information; The document background is extracted from the document to be printed, and the document background data and the document content data are generated. 3 . The remote control method for a printing press according to claim 1 , wherein the operation instructions uploaded by the printing press are encrypted and decrypted after being received. 4 . 4. The remote control method for a printing press according to claim 1, wherein the document background data includes background size information and background pattern information. 5. A remote control system for a printing press, wherein the system comprises: a data acquisition module, used for acquiring the document to be printed and collecting a set of random data, the random data being the data randomly collected from the equipment; The file decomposition module is used to decompose the content of the document to be printed to obtain the file background data and the file content data; The data encryption module is used to retrieve the preset encryption scheme according to the random data, and encrypt the content data of the file to obtain the encrypted content data; The data transmission module is used to transmit file background data, encrypted content data and random data to the printing press, and receive and display the machine interface transmitted from the printing press; The data encryption module includes: The data standardization unit is used to standardize the random data to obtain standard data; a scheme retrieving unit, used for substituting the standard data into the preset encryption scheme determination function, and retrieving the corresponding encryption scheme according to the result; The text encryption unit is used for encrypting the content according to the encryption scheme, changing the text content in the file content data, and obtaining the encrypted content data; The data transmission module includes: A data query unit, used to transmit file background data, encrypted content data and random data to the printing press, and query the model parameters of the printing press; The system simulation unit is used to run the corresponding simulation printing system according to the model parameters of the printing machine and display it, so as to determine the user's execution operation according to the position of the user's click on the device screen, and send it to the printing machine. return display data; The interface updating unit is used for updating the display interface according to the display data. 6. The remote control system for a printing press according to claim 5, wherein the file decomposition module comprises: The text extraction unit is used to perform text recognition on the document to be printed, identify the text content, and obtain the text text; The text positioning unit is used to locate the size and text position of each text contained in the text to obtain text auxiliary information; The background extraction unit is used for extracting the document background from the document to be printed, and generating document background data and document content data.

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