Display content synchronization method and system based on cooperative work of multiple serial port screens

Abstract

The invention relates to the technical field of content synchronization, and discloses a display content synchronization method and system based on cooperative work of multiple serial port screens, and the method comprises the steps: taking each serial port screen as an independent node, and obtaining the interaction information of each node; generating two pieces of unencrypted information according to the interaction information: a control instruction for a response part and the original interaction information; the two segments of information are encrypted in two encryption modes, so that the response part can only decrypt the control instruction, and the original interaction information is synchronized to other nodes directly through the response part; and transmitting the two pieces of encrypted information to a response part at the same time, and transmitting the information to other nodes through the response part, thereby completing display content synchronization of cooperative work of the multiple serial port screens. According to the whole scheme, on the premise that encryption safety is guaranteed, display synchronization accuracy and stability among multiple nodes are improved, and the method is suitable for a multi-serial-port cooperation scene with the high requirement for reliability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of content synchronization, in particular to a display content synchronization method and system based on multi-serial port screen cooperative work. BACKGROUND

[0002] Under the background of the wide popularization of current intelligent terminal devices, multi-screen cooperative technology has been widely applied in information display, industrial control, human-computer interaction and other scenes. Especially in fields such as medical display, industrial control, vehicle-mounted central control and intelligent retail, the data consistency and response cooperation between different screens have become the key factors affecting the stability of the system and the user experience. The traditional serial communication mode is still widely used in many embedded or resource-limited systems due to its simple architecture and low cost. However, with the increase of application complexity, the original one-way communication or simple broadcast mechanism has been difficult to meet the efficient and reliable information synchronization needs between multiple nodes.

[0003] In addition, in the actual deployment process, there are problems such as communication bandwidth difference between serial port nodes, instruction response lag, information redundancy broadcast, etc., which not only cause synchronization failure, but also may cause interface content disorder, operation feedback delay and other phenomena. At the same time, the multi-screen cooperative system faces the dual challenges of data encryption and privacy protection. Since the serial port protocol itself lacks mandatory encryption standards, data is vulnerable to interception or tampering during transmission, further exacerbating the security risks of information synchronization.

[0004] More complex is that in the process of multi-node cooperation, the abnormal response, data damage or instruction loss of any node may cause the breakage of the whole synchronization chain, and even cause systematic errors. Therefore, how to realize efficient and fault-tolerant information synchronization mechanism under the premise of ensuring the accuracy of instruction response between nodes and the security of data transmission has become one of the key problems that need to be broken through in current multi-serial port cooperative technology. SUMMARY

[0005] In view of the above problems, the present application is proposed.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a display content synchronization method based on multi-serial port screen cooperative work, comprising: Each serial port screen is regarded as an independent node, and the interaction information of each node is obtained; According to the interaction information, two pieces of unencrypted information are generated: control instructions for the response part and original interaction information; The two pieces of information are encrypted in two encryption modes respectively, so that the response part can only decrypt the control instructions, and the original interaction information is directly synchronized to other nodes through the response part; The two pieces of encrypted information are transmitted to the response part at the same time, and are transmitted to other nodes through the response part, so that the display content synchronization of the multi-serial port screen cooperative work is completed.

[0007] As a preferred scheme of the display content synchronization method based on the multi-serial port screen cooperative work, the interaction information includes action instructions generated by a user and the response part of the serial port screen to the serial port screen.

[0008] As a preferred scheme of the display content synchronization method based on the multi-serial port screen cooperative work, the control instructions include control signals generated according to the interaction information and a preset response program.

[0009] As a preferred scheme of the display content synchronization method based on the multi-serial port screen cooperative work, the encryption mode includes using two preset encryption modes to set corresponding keys, key 1 and key 2. The data string of the control instructions is associated and packaged with key 2, and the data string of the interaction information is associated and packaged with key 1. The packaged content is encrypted respectively to obtain ciphertext 1 of the control instruction and key 2 packaging result and ciphertext 2 of the interaction information and key 1 packaging result. Key 1 is a decryption mode of ciphertext 1, and key 2 is a decryption mode of ciphertext 2.

[0010] As a preferred scheme of the display content synchronization method based on the multi-serial port screen cooperative work, the associated packaging includes establishing an association between the opposite key and the data string and then packaging. In the associated packaging, the opposite key is copied and connected at the head and tail to obtain a long key, and each data point in the data string is established with a position index of the long key. If the data string 1 is complete during decryption, the decrypted data string 1 is directly used for data synchronization at the response part or the node; if the data string 1 is partially lost during decryption, the position information of the lost part is obtained through the position index; in the long key, a continuous character string with a length of the key length is intercepted, the opposite key is obtained through adjustment of the head part, and the lost part is deduced through decryption of the opposite ciphertext by using the position information and the opposite key, and the data string 1 after completion is used for data synchronization at the response part or the node.

[0011] As a preferred scheme of the display content synchronization method based on the multi-serial port screen cooperative work, the step of deducing the lost part is: Step 1: According to the preset response program and the decrypted opposite data string, a data string identical to the data string 1 prototype is generated, which is set as data string 2; Step 2: Compare data string 1 and data string 2, and supplement the part missing in data string 1 but existing in data string 2; If the data after the supplement of data string 1 is complete, the supplemented data string 1 is directly output; otherwise, step 3 is entered. Step 3: Introduce the Bayesian guided attention mechanism, model the correlation between each position and other positions in the data string, take the prior probability as the initial value of the attention weight, and obtain the initial attention distribution; through the neural network composed of an encoder-attention module-decoder, the encoder extracts the feature vector of each known part, the attention module adds the attention weight to each feature vector, and then the decoder outputs the estimation of the missing value.

[0012] As a preferred scheme of the display content synchronization method based on the cooperative work of multi-serial port screens, wherein: the decryption includes decrypting the packaged ciphertext by key 1 in the response part and decrypting the packaged ciphertext by key 2 at the node.

[0013] A display content synchronization system based on the cooperative work of multi-serial port screens using the method according to any one of the present application, wherein: The acquisition unit takes each serial port screen as an independent node and acquires the interaction information of each node. The analysis unit generates two pieces of unencrypted information according to the interaction information: a control instruction for the response part and original interaction information. The encryption unit encrypts the two pieces of information in two encryption modes respectively, so that the response part can only decrypt the control instruction, and the original interaction information is directly transmitted to other nodes through the response part to synchronize the interaction information to other nodes. The synchronization unit transmits the two pieces of encrypted information to the response part at the same time, and transmits them to other nodes through the response part, thereby completing the display content synchronization of the cooperative work of multi-serial port screens.

[0014] A computer device, comprising a memory and a processor; the memory stores a computer program, wherein the processor implements the steps of the method according to any one of the present application when executing the computer program.

[0015] A computer readable storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to implement the steps of the method according to any one of the present application.

[0016] The application has the beneficial effects that the display content synchronization method based on the cooperative work of multiple serial port screens provided by the application realizes the power decryption of different data contents between nodes by splitting and processing the control instructions and interactive information, adopts a double-key encryption mechanism, effectively prevents data misuse and information leakage, and enhances the security and isolation of the system. By introducing the key association packaging and position index mechanism, when data loss occurs in serial port communication, the missing content can be derived based on the structured key, and the fault tolerance of the system in a weak communication environment is improved. At the same time, in combination with the reference data string generated by the response program and the attention mechanism neural network completion method, the recovery ability of the system to incomplete data is further enhanced, and adaptive data repair is realized. The overall scheme improves the display synchronization accuracy and stability between multiple nodes under the premise of ensuring encryption security, and is suitable for multiple serial port cooperative scenes with high reliability requirements. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 The application provides a display content synchronization method based on the cooperative work of multiple serial port screens. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the application more obvious and easy to understand, the specific embodiments of the application will be described in detail below with reference to the drawings in the specification. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor should be within the protection scope of the application.

[0020] Embodiment 1, refer to Figure 1 For an embodiment of the application, a display content synchronization method based on the cooperative work of multiple serial port screens is provided, which comprises: S1: Each serial port screen is regarded as an independent node, and the interactive information of each node is obtained.

[0021] In the multi-serial port screen collaboration system, each serial port screen is set as an independent node. The design purpose is to realize distributed information collection and response control, thereby improving the flexibility, scalability and autonomous processing capability of the system. Each node no longer passively waits for instruction broadcast, but has the ability to actively collect and structure the interactive state of itself, which helps the system to realize precise synchronization, dynamic instruction issuance and differentiated content display. Through node-level data structure management, redundant communication can be reduced, synchronization efficiency can be improved, and clear data boundaries can be provided for subsequent security encryption and instruction distribution.

[0022] Further, the interaction information includes an action instruction generated by the user and the serial port screen, and feedback information of the response part of the serial port screen to the serial port screen.

[0023] In practical applications, the interaction behavior between the user and the serial port screen usually triggers the system response in the form of action instructions. For example, the user clicks the "Confirm" button on the serial port screen, which constitutes an action instruction, which will be collected as part of the interaction information; at the same time, the response logic inside the serial port screen will process the instruction and output the corresponding feedback information, such as the button becoming "pressed" state, the interface jumping to the next page, or a prompt "operation successful" popping up on the screen. For example, the user completes the numerical input in the input box and clicks the "Submit" button, the system will collect the input content as an action instruction, and the feedback information may include: input box locking, displaying "processing" animation, and returning status code "200 OK" or prompt text "data uploaded" after successful background processing. These feedback information not only represents the state change of the current node, but also provides a synchronization basis for other collaborative nodes, thereby ensuring the consistency of the multi-node interface state and the uniformity of the response behavior.

[0024] In addition, in the multi-serial port screen collaboration system, in order to improve the accuracy of control and the degree of structuring of instruction processing, control instructions are divided into two types, which are designed for different response requirements: Type 1: Directly control the state change of the response part, mainly used to trigger the significant change behavior of the interface or component. For example, switching to a new page, popping up a prompt window, closing the current pop-up window, switching the display mode, etc. This type of instruction has a clear action boundary and visual effect, and usually causes overall changes in screen content or structure after execution. Typical instructions are: "jump to page ID=3", "display warning window", "clear all input items", etc.

[0025] Type 2: The instruction for changing the parameters of the response part, which is used to fine-tune the control properties or parameter values in the existing interface. For example, adjusting the current value of a slider bar, setting a certain button to be disabled, modifying the label content, changing the control color, etc. Such instructions usually do not change the overall structure, but have fine control over the detailed state of the interface elements. Typical instructions are: "set the slider value to 75" "button B is set to be unavailable" "the label content is changed to 'connecting…'" etc.

[0026] By classifying the control instructions, the system can achieve higher processing efficiency and execution accuracy in information parsing, permission control and instruction scheduling, effectively supporting the multi-node synchronization strategy in complex interactive scenarios.

[0027] S2: According to the interaction information, generate two pieces of unencrypted information: control instructions for the response part and original interaction information.

[0028] The control instructions include generating control signals for the response part according to the interaction information and the preset response program.

[0029] In a multi-node collaborative system, interaction information often contains user behavior, node feedback, and other raw data. If not processed directly, it is easy to cause information redundancy, synchronization errors or parsing conflicts. Structuring and splitting the interaction information into "control instructions" and "original interaction information" has the design purpose of decoupling data, processing and encryption, ensuring that each node in the system receives and processes the information it needs according to its responsibilities, thereby improving the overall synchronization efficiency and security.

[0030] Specifically, by analyzing the interaction information and combining the preset response program, the system can automatically generate control instructions to drive the response part to perform interface updates, parameter changes, and other operations; while the original interaction information is transmitted to other collaborative nodes for content restoration or state reproduction as an event basis or synchronization source. Such design not only avoids the execution ambiguity caused by the mixing of instructions and raw data, but also lays the foundation for subsequent encryption processing, permission allocation and fault tolerance mechanism, achieving the goal of "controllable instructions, traceable information, and synchronized behavior".

[0031] S3: Encrypt the two pieces of information in two encryption modes respectively, so that the response part can only decrypt the control instructions, while the original interaction information is directly synchronized to other nodes through the response part.

[0032] The encryption method includes setting corresponding keys, key 1 and key 2, by using two preset encryption methods respectively. The data string of the control instruction is associated and packed with key 2, and the data string of the interaction information is associated and packed with key 1. The packed contents are encrypted respectively to obtain ciphertext 1 of the control instruction and key 2 packing result and ciphertext 2 of the interaction information and key 1 packing result. Key 1 is the decryption method of ciphertext 1; and key 2 is the decryption method of ciphertext 2.

[0033] The decryption includes decrypting the packed ciphertext by key 1 at the response part and decrypting the packed ciphertext by key 2 at the node.

[0034] In the multi-serial port screen collaborative system, the responsibilities of the nodes are different, and the information contents required to be processed are also different. If all nodes can access all information, the following problems may occur: the risk of information leakage increases, the node permission is confused, the error execution instruction is executed, and the synchronization behavior is out of control. Therefore, the encryption method adopts a “double-key decentralization encryption strategy”, and the design purpose is to realize data security isolation, permission control decoupling and synchronization path clearification. By separating and packing the control instruction and the interaction information and encrypting them respectively, and using different keys (key 1 and key 2) to correspond to the decryption permission, it can be ensured that the response part can only decrypt the control instruction to execute local state change or parameter adjustment, and cannot obtain or modify the original interaction information. The collaborative node can only decrypt the interaction information for content synchronization, and does not have the permission to control the local response logic. By designing the “key-information pair”, the information type and its processing permission are bound to improve the security and execution correctness. Structured processing interfaces are reserved for subsequent data integrity verification, loss recovery and key derivation mechanisms to enhance the fault tolerance and expansion capability of the system.

[0035] Further, the associated packing includes establishing an association between the opposite key and the data string and then packing. In the associated packing, the opposite key is copied and connected at the head and tail to obtain a long key; and in the data string, each data point is established with a position index of the long key.

[0036] If the data string 1 is complete during decryption, the decrypted data string 1 is directly used for data synchronization at the response part or the node; if the data string 1 is partially lost during decryption, the position information of the lost part is obtained through the position index; in the long key, a continuous string with a length of the key length is intercepted, and the opposite key is obtained by adjusting the head part; the lost part is derived by decrypting the opposite ciphertext through the position information and the opposite key, and the completed data string 1 is used for data synchronization at the response part or the node.

[0037] The step of deriving the lost part is: Step 1: According to the preset response program and the decrypted data string of the opposite party, generate a data string identical to the original data string 1, and set it as data string 2.

[0038] Step 2: Compare data string 1 and data string 2, and supplement the parts that are missing in data string 1 but exist in data string 2.

[0039] If the data is complete after supplementation, output the supplemented data string 1; otherwise, go to step 3.

[0040] Step 3: Introduce the Bayesian guided attention mechanism to model the correlation between each position and other positions in the data string, use the prior probability as the initial value of the attention weight, and obtain the initial attention distribution; through the neural network composed of encoder-attention module-decoder, the encoder extracts the feature vector of each known part, the attention module adds attention weight to each feature vector, and then the decoder outputs the estimate of the missing value.

[0041] In the actual multi-serial port screen cooperative communication scene, the serial port transmission may be affected by factors such as hardware jitter, electromagnetic interference, or frame synchronization error, resulting in partial loss or damage of data at the receiving end. If directly relying on traditional encryption methods, any missing data bit may cause the entire data string to fail to decrypt, seriously affecting the integrity of display synchronization and system stability.

[0042] By introducing the key association packaging + long key + position index + exception repair derivation mechanism, the purpose is to build a set of anti-packet loss data processing structure with fault tolerance, self-repairing and reasoning ability. Specifically, by establishing an index relationship between each data point and the long key, even if part of the content is missing, the missing position can be located, forming a structured completion basis. Through the combination and adjustment mechanism of the opponent's key and the long key, a backup decryption path is realized when the original key fragment is lost, improving the flexibility and reversibility of the key system. With the help of "opponent data string + preset response program" to generate reference data string for comparison and completion, cross-ciphertext recovery is supported, and the value of multi-node cooperation is reflected. When traditional completion methods still cannot completely recover, the Bayesian guided attention neural network is used to model the context of known information, and the intelligent prediction and estimation of missing content are realized. Ensure that in the process of multi-node cooperative work, when a single node or communication chain occurs locally, the current period of data synchronization can still be completed, ensuring the stable operation of the system.

[0043] S4: Transmit the two encrypted information to the response part at the same time, and then transmit them to other nodes through the response part, thereby completing the display content synchronization of multi-serial port screen cooperative work.

[0044] In the multi-serial port screen cooperation system, the control instruction ciphertext (ciphertext 1) and the interactive information ciphertext (ciphertext 2) generated in the foregoing steps are simultaneously transmitted to the response part in a structured manner, the response part completes the processing of its own control logic, and as a relay node, further transmits the information required for synchronization to other serial port screen nodes in the system, thereby realizing the consistency and response synchronization of the multi-screen cooperation state.

[0045] The response node only decrypts and executes the control instruction, and the other nodes only process the interactive information, avoiding unauthorized information and misexecution. The two pieces of ciphertext are transmitted together, reducing the communication burden and improving system efficiency. Even if there is a communication delay in part of the nodes, the response node can ensure that the core control flow is completed, maintaining the continuity of system operation. It constitutes a closed loop from "security packaging" to "permission execution" to "cooperation forwarding", which is the key mechanism for realizing high-security, high-consistency multi-serial port screen display synchronization.

[0046] Embodiment 2 also provides a display content synchronization system based on multi-serial port screen cooperation, which comprises: a collection unit, which takes each serial port as an independent node and obtains the interactive information of each node.

[0047] An analysis unit generates two pieces of unencrypted information: control instructions for the response part and original interactive information according to the interactive information.

[0048] An encryption unit encrypts the two pieces of information in two encryption modes respectively, so that the response part can only decrypt the control instruction, and the original interactive information is directly synchronized to other nodes through the response part.

[0049] A synchronization unit simultaneously transmits the two pieces of encrypted information to the response part and transmits them to other nodes through the response part, thereby completing the display content synchronization of multi-serial port screen cooperation.

[0050] If the above functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the parts that contribute to the existing technology or parts of the technical solutions can be embodied in the form of software products, which are stored in a storage medium and include instructions to make a computer device (which can be a personal computer, server, or network device, etc.) execute all or part of the steps of the method described in the embodiments of the present application. The foregoing storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, and various program code storage media.

[0051] The logic and / or steps represented in the flow diagrams or otherwise described herein, for example, can be considered as a sequence of executable instructions, and can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. In the context of this specification, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. The computer-readable medium can be, for example but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, device, or propagation medium.

[0052] More specific examples (a non-exhaustive list) of the computer-readable medium include the following: an electrical connection (electronic) having one or more wires, a portable computer diskette (magnetic), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can also be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, for example via an optical scanner, then compiled, interpreted, or otherwise processed, and stored in a computer memory in a form that can be later executed by a computer.

[0053] It should be understood that aspects of the application can be implemented in hardware, software, firmware or combinations thereof. In the above embodiments, various steps or methods can be implemented in software or firmware that is stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any of the following technologies, or combinations thereof, can be used: a discrete logic circuit having logic gates for implementing logic functions upon data signals, an application specific integrated circuit having appropriate combinational logic gates, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0054] It should be noted that the above-mentioned embodiments are merely used to illustrate the technical solutions of the present application, but not limit the present application, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalent replaced, without departing from the spirit and scope of the technical solutions of the present application, and all of them should be covered in the scope of claims of the present application.

Claims

1. A display content synchronization method based on multi-serial port screen cooperative work, characterized in that, The application relates to a method for realizing multi-serial port screen synchronous display. The method comprises the following steps: Each serial port screen is taken as an independent node, and interaction information of each node is obtained; According to the interaction information, two pieces of unencrypted information, namely a control instruction for a response part and original interaction information, are generated; The two pieces of information are encrypted in two encryption modes respectively, so that the response part can only decrypt the control instruction, and the original interaction information is directly transmitted to other nodes through the response part, thereby realizing synchronization of display content of the multi-serial port screen.

2. The display content synchronization method based on the collaborative work of multiple serial port screens according to claim 1, characterized in that: The interaction information comprises action instructions generated by a user and feedback information of the response part of the serial port screen.

3. The display content synchronization method based on multi-serial port screen cooperation according to claim 2, characterized in that: The control instruction comprises a control signal for the response part, which is generated according to the interaction information and a preset response program.

4. The display content synchronization method based on multi-serial port screen cooperation according to claim 3, characterized in that: The encryption mode comprises using two preset encryption modes and setting corresponding keys, namely key 1 and key 2. A data string of the control instruction is associated with the key 2 and is packaged, and a data string of the interaction information is associated with the key 1 and is packaged. The packaged contents are encrypted respectively, so as to obtain ciphertext 1 of the packaging result of the control instruction and key 2 and ciphertext 2 of the packaging result of the interaction information and key 1. The key 1 is a decryption mode of the ciphertext 1, and the key 2 is a decryption mode of the ciphertext 2.

5. The display content synchronization method based on multi-serial port screen cooperation according to claim 4, characterized in that: The association packaging comprises establishing an association between the opposite key and the data string and then packaging. In the association packaging, the opposite key is copied and connected at the head and tail to obtain a long key, and each data point in the data string is established with a position index of the long key. If the data string 1 is complete during decryption, the decrypted data string 1 is directly used for data synchronization of the response part or the node. If the data string 1 is partially lost during decryption, position information of the lost part is obtained through the position index, a continuous character string with a length of the key length is intercepted from the long key, the opposite key is obtained through adjustment of the head part, the opposite ciphertext is decrypted through the position information and the opposite key, the lost part is deduced, and the supplemented data string 1 is used for data synchronization of the response part or the node.

6. The display content synchronization method based on multi-serial port screen cooperation according to claim 5, characterized in that: The step of deducing the lost part comprises the following steps: Step 1: generating a data string identical to the data string 1 prototype and taking the data string as data string 2 according to a preset response program and the decrypted opposite data string; Step 2: comparing the data string 1 and the data string 2, and supplementing the part existing in the data string 2 but not existing in the data string 1; If the data string 1 is complete after being supplemented, the supplemented data string 1 is directly output; otherwise, step 3 is entered; Step 3: introducing a Bayesian attention mechanism to model the correlation between each position and other positions in the data string, taking the prior probability as an attention weight initial value to obtain an initial attention distribution, and through a neural network composed of an encoder, an attention module and a decoder, the encoder extracts a feature vector of each known part, the attention module adds an attention weight to each feature vector, and the decoder outputs an estimation of the missing value.

7. The display content synchronization method based on multi-serial port screen cooperation according to claim 6, characterized in that: The decryption includes, in response to the part by key 1 to pack the ciphertext decryption, in the node by key 2 to pack the ciphertext decryption.

8. A display content synchronization system based on multi-serial port screen cooperative work using the method of any one of claims 1-7, characterized in that: The acquisition unit takes each serial port screen as an independent node and acquires the interaction information of each node. The analysis unit generates two pieces of unencrypted information, namely the control instruction for the response part and the original interaction information, according to the interaction information. The encryption unit encrypts the two pieces of information in two encryption modes respectively, so that the response part can only decrypt the control instruction, and the original interaction information is directly transmitted to other nodes through the response part to synchronize the interaction information to other nodes. The synchronization unit transmits the two pieces of encrypted information to the response part at the same time and transmits them to other nodes through the response part, thereby completing the display content synchronization of multi-serial port screen cooperative work.

9. A computer device comprising: A memory and a processor; the memory stores a computer program, characterized in that: the processor executes the computer program to realize the steps of the method of any one of claims 1-7.

10. A computer readable storage medium having stored thereon a computer program, characterized in that: The computer program is executed by the processor to realize the steps of the method of any one of claims 1-7.

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