Internal and external network information exchange system based on physical isolation

Abstract

The utility model provides an intranet and extranet information exchange system based on physical isolation, and belongs to the technical field of intranet and extranet communication. The problem that the identification accuracy is low when internal and external network physical isolation is achieved by arranging a camera to collect the content of a display screen at present is solved. The system comprises an intranet server, an intranet display screen, an intranet microphone, an intranet loudspeaker, an intranet camera, an extranet server, an extranet camera, an extranet microphone, an extranet loudspeaker and an extranet display screen, and the intranet server is connected with and controls the intranet display screen, the intranet microphone, the intranet loudspeaker and the intranet camera. The extranet server is connected with and controls the extranet camera, the extranet microphone, the extranet loudspeaker and the extranet display screen, and information exchange is realized between the intranet server and the extranet server through an optical isolator; the system is applied to safe and efficient exchange of intranet and extranet information.

Description

Technical Field

[0001] This invention provides a physical isolation-based internal and external network information exchange system, belonging to the field of internal and external network communication technology. Background Technology

[0002] To avoid interference from external network attacks, modern enterprises have established internal networks that are fully physically isolated from the external network. User and device system information within the internal network is shared and controlled according to predetermined rules. However, compared to the external network, the internal network has disadvantages such as smaller signal coverage, weaker and more unstable signal, and fewer application software resources. How to fully utilize the advantages of the external network and overcome the shortcomings of the internal network while avoiding external network attacks, and achieve partial information sharing between the internal and external networks according to predetermined rules, is a pressing issue. Currently, some methods achieve physical isolation between the internal and external networks by setting up cameras to capture the content of display screens. While this achieves physical isolation and ensures network security to a certain extent, it also has many drawbacks, such as low content recognition accuracy and susceptibility to environmental factors. Utility Model Content

[0003] To address the problem of low recognition accuracy in current methods that rely on cameras to capture content from displays for physical isolation between internal and external networks, this invention proposes a physical isolation-based information exchange system for internal and external networks. By simultaneously setting up cameras, microphones, speakers, and a pre-set dictionary, the system can accurately identify information transmitted between internal and external networks with high accuracy and minimal impact from environmental factors.

[0004] The technical solution adopted by this utility model is as follows: an internal and external network information exchange system based on physical isolation, including an internal network server, an internal network display screen, an internal network microphone, an internal network speaker, an internal network camera, an external network server, an external network camera, an external network microphone, an external network speaker, and an external network display screen. The internal network server connects to and controls the internal network display screen, the internal network microphone, the internal network speaker, and the internal network camera. The external network server connects to and controls the external network camera, the external network microphone, the external network speaker, and the external network display screen. Information exchange between the internal network server and the external network server is achieved through an optical isolator.

[0005] Furthermore, the external network camera is positioned opposite the internal network display screen to capture image information displayed on the internal network display screen, while the external network microphone receives voice information from the internal network speaker.

[0006] Furthermore, the intranet camera is positioned opposite the external network display screen to capture image information displayed on the external network display screen, while the intranet microphone receives voice information from the external network speaker.

[0007] Furthermore, both the intranet server and the extranet server have built-in image recognition algorithms, speech recognition algorithms, and keyword databases.

[0008] Furthermore, both the intranet server and the extranet server are equipped with satellite clocks.

[0009] Furthermore, four communication lines are set up between the intranet server and the extranet server. At both ends of each communication line, there is one communication line indicating that the intranet server, intranet speakers, and intranet displays are capable of transmitting image and voice information to the extranet server, extranet camera, and extranet microphone; one communication line indicating that the intranet server, intranet camera, and intranet microphone are capable of receiving voice and image information transmitted from the extranet server, extranet speakers, and extranet displays; one communication line indicating that the extranet server, extranet camera, and extranet microphone are capable of receiving voice and image information from the intranet server, intranet speakers, and extranet displays; and one communication line indicating that the extranet server, extranet speakers, and extranet displays are capable of transmitting voice and image information to the intranet server, intranet microphone, and extranet camera.

[0010] Furthermore, fault detection devices are installed on the intranet display screen, intranet microphone, intranet speaker, intranet camera, extranet camera, extranet microphone, extranet speaker, extranet display screen, and communication line respectively.

[0011] The advantages of this utility model compared to the prior art are as follows: This utility model applies existing AI recognition technology for images and voice and uses a keyword database composed of dedicated text. It adopts dual text recognition of images and voice, which is more efficient than using image recognition alone. It can achieve the purpose of secure and efficient information exchange between internal and external networks. It also eliminates external network hacker attacks and achieves partial information sharing between internal and external networks, effectively ensuring internal network security and improving internal network work efficiency. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 A sequence diagram showing the process of an internal network server sending image and voice information to an external network server.

[0015] Figure 3 A timing diagram for sending image and voice information from an external network server to an internal network server. Detailed Implementation

[0016] like Figures 1 to 3As shown, this utility model provides a physical isolation-based internal and external network information exchange system, including an internal network server, an internal network display screen, an internal network microphone, an internal network speaker (or loudspeaker), an internal network camera, an external network server, an external network camera, an external network microphone, an external network speaker (or loudspeaker), and an external network display screen. The internal network server is connected to the internal network display screen, internal network microphone, internal network speaker, and internal network camera, and the external network server is connected to the external network camera, external network microphone, external network speaker, and external network display screen. The internal network server and the external network server communicate via an optical coupler to enable and confirm the sending and receiving of information between the internal and external networks.

[0017] The intranet camera, intranet microphone, intranet display screen, and intranet speaker are all controlled by the intranet server. The intranet camera is used to capture image information from the extranet display screen, the intranet microphone is used to receive voice information from the extranet speaker, the intranet display screen is used to notify the extranet camera of the image information from the intranet server and transmit it to the extranet server, and the intranet speaker is used to notify the extranet microphone of the voice information from the intranet server and transmit it to the extranet server.

[0018] The external network camera, external network microphone, external network display screen, and external network speaker are all controlled by the external network server. The external network camera is used to capture image information from the internal network display screen, the external network microphone is used to receive voice information from the internal network speaker, the external network display screen is used to notify the internal network camera of the image information from the external network server and transmit it to the internal network server, and the external network speaker is used to notify the internal network microphone of the voice information from the external network server and transmit it to the internal network server.

[0019] Both the internal and external network servers have built-in mature image recognition algorithms (such as template matching algorithms, LeNet, AlexNet, etc.), speech recognition algorithms (such as Hidden Markov Models, Gaussian Mixture Models, etc.), and keyword dictionaries. They can convert speech to text and text to speech. The keyword dictionaries are used to verify the text after speech and text image recognition to see if it belongs to the information exchanged between the internal and external networks, which can ensure the security of communication to a certain extent.

[0020] In this embodiment, there are four communication lines between the intranet server and the extranet server. Each line is optically isolated. One line indicates that the intranet server, intranet speaker, and intranet display screen are capable of transmitting image and voice information to the extranet server, extranet camera, and extranet microphone. Another line indicates that the intranet server, intranet camera, and intranet microphone are capable of receiving voice and image information transmitted from the extranet server, extranet speaker, and extranet display screen. A third line indicates that the extranet server, extranet camera, and extranet microphone are capable of receiving voice and image information from the intranet server, intranet speaker, and extranet display screen. Finally, a fourth line indicates that the extranet server, extranet speaker, and extranet display screen are capable of transmitting voice and image information to the intranet server, intranet microphone, and extranet camera.

[0021] Whether it's an internal network server or an external network server, the communication line is active high when it's in send or receive mode. When the internal network server is in send mode, the external network server can only be in receive mode, and vice versa.

[0022] Both the internal and external network servers are equipped with satellite clocks, enabling precise synchronization of information transmission and reception times.

[0023] Specifically, an external network camera can be positioned facing an internal network display screen to capture images displayed on the internal network screen, and an internal network camera can be positioned facing an external network display screen to capture images displayed on the external network screen. Image recognition algorithms can then be used to identify text, tables, characters, and other content in the images.

[0024] Furthermore, fault detection devices are installed on the intranet display screen, intranet microphone, intranet speaker, intranet camera, extranet camera, extranet microphone, extranet speaker, extranet display screen, and communication line to detect the working status of the above hardware devices and determine whether they are faulty.

[0025] like Figure 2 The diagram shows the timing of an intranet server sending image and voice information to an external network server. In the diagram, t1 is the time from when the intranet can send information to the external network to when the external network notifies the intranet that it is in the state of receiving intranet information; t2 is the time from when the external network notifies the intranet that it is in the state of receiving intranet information to when the intranet sends information to the external network; t3 is the time from when the intranet finishes sending information to the external network to when the intranet can send information to the external network; and t4 is the time from when the intranet can send information to the external network to when the external network notifies the intranet that it is in the state of receiving intranet information.

[0026] like Figure 3The diagram shows the timing of an external network server sending image and voice information to an internal network server. In the diagram, t5 is the time from the start of the external network preparing to send information to the internal network to the start of the internal network notifying the external network that it is in the state of receiving information from the internal network; t6 is the time from the time the internal network notifies the external network that it is in the state of receiving information from the external network to the time the external network sends information to the internal network; t7 is the time from the end of the external network sending information to the internal network to the time when the external network can send information to the internal network stops; and t8 is the time from the time the external network can send information to the internal network stops to the time when the internal network notifies the external network that it is in the state of receiving information from the external network stops.

[0027] Regarding the specific structure of this utility model, it should be noted that the connection relationships between the various component modules adopted in this utility model are definite and achievable. Except as specifically described in the embodiments, their specific connection relationships can bring about corresponding technical effects and solve the technical problems proposed by this utility model without relying on the execution of corresponding software programs. The models of the components, modules, and specific components appearing in this utility model, the connection methods between them, and the conventional usage methods and expected technical effects brought about by the above-mentioned technical features, unless specifically described, are all publicly disclosed content in patents, journal articles, technical manuals, technical dictionaries, and textbooks that can be obtained by those skilled in the art before the application date, or belong to conventional technology, common knowledge, and other existing technologies in this field. There is no need to elaborate, which makes the technical solution provided in this case clear, complete, and achievable, and can reproduce or obtain corresponding physical products based on this technical means.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A physical isolation-based internal and external network information exchange system, characterized in that: It includes an intranet server, an intranet display screen, an intranet microphone, an intranet speaker, an intranet camera, an extranet server, an extranet camera, an extranet microphone, an extranet speaker, and an extranet display screen. The intranet server connects to and controls the intranet display screen, intranet microphone, intranet speaker, and intranet camera, and the extranet server connects to and controls the extranet camera, extranet microphone, extranet speaker, and extranet display screen. Information exchange between the intranet server and the extranet server is achieved through an optical isolator.

2. The internal and external network information exchange system based on physical isolation according to claim 1, characterized in that: The external network camera is set opposite the internal network display screen to capture image information displayed on the internal network display screen, while the external network microphone receives voice information from the internal network speaker.

3. The internal and external network information exchange system based on physical isolation according to claim 1, characterized in that: The intranet camera is set opposite the external network display screen to capture image information displayed on the external network display screen, while the intranet microphone receives voice information from the external network speaker.

4. A physical isolation-based internal and external network information exchange system according to claim 1 or 2, characterized in that: Both the internal network server and the external network server have built-in image recognition algorithms, speech recognition algorithms, and keyword databases.

5. The internal and external network information exchange system based on physical isolation according to claim 4, characterized in that: Both the internal network server and the external network server are equipped with satellite clocks.

6. The internal and external network information exchange system based on physical isolation according to claim 1, characterized in that: There are four communication lines between the intranet server and the extranet server. Each communication line has one end, which is a status communication line between the intranet server and the intranet speaker and intranet display screen, and between the intranet server and the extranet camera and extranet microphone, to transmit pictures and voice information. One is a communication line where the intranet server, intranet camera, and intranet microphone are in a state of receiving voice and image information transmitted from the extranet server, extranet speaker, and extranet display screen; One is a communication line where the external network server, external network camera, and external network microphone are in a state of receiving voice and image information from the internal network server, internal network speaker, and internal network display screen; One is a status communication line that allows external network servers, external network speakers, and external network displays to transmit voice and image information to internal network servers, internal network microphones, and internal network cameras.

7. The internal and external network information exchange system based on physical isolation according to claim 6, characterized in that: Fault detection devices are installed on the intranet display screen, intranet microphone, intranet speaker, intranet camera, extranet camera, extranet microphone, extranet speaker, extranet display screen, and communication line.

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