Information unidirectional isolation transmission device

Abstract

The utility model discloses a kind of information one-way isolation transmission equipment, the information one-way isolation transmission equipment includes: sending device, display device, image acquisition device, light shield and identification device, sending device includes encoding module and graph module, encoding module is used to form multiple data blocks based on original information segmentation, and any data block is encoded, to form corresponding two-dimensional code, graph module is used to generate two-dimensional code matrix image according to two-dimensional code, two-dimensional code matrix image is arranged by multiple two-dimensional codes Composition. Display device is connected with sending device, and display device is used to display two-dimensional code matrix image. Image acquisition device is oppositely arranged with display device, and image acquisition device is used to obtain two-dimensional code matrix image. Light shield is covered in the outside of display device and image acquisition device. Identification device is connected with image acquisition device, and identification device includes identification module, and identification module is used to identify multiple two-dimensional codes in two-dimensional code matrix image.

Description

Technical Field

[0001] This application relates to the field of information transmission technology, and in particular to a one-way isolated information transmission device. Background Technology

[0002] National secrecy regulations require that classified networks and external networks transmit information through "physical isolation," meaning that there is no direct or indirect physical connection between the sending and receiving ends during transmission. However, traditional solutions such as CD-ROM transfers and secure USB drives have limited transmission efficiency and capacity, resulting in unsatisfactory transmission quality. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0004] This application proposes a one-way isolated information transmission device, comprising: a transmitting device, a display device, an image acquisition device, a light shield, and an identification device. The transmitting device includes an encoding module and an image generation module. The encoding module is used to segment the original information into multiple data blocks and encode any data block to form a corresponding QR code. The image generation module is used to generate a QR code matrix image based on the QR codes, the QR code matrix image being composed of multiple QR codes arranged in a row. The display device is connected to the transmitting device and is used to display the QR code matrix image. The image acquisition device is positioned opposite the display device and is used to acquire the QR code matrix image. The light shield covers the outside of the display device and the image acquisition device. The identification device is connected to the image acquisition device and includes an identification module. The identification module is used to identify multiple QR codes in the QR code matrix image to reconstruct the original information.

[0005] In some of the technical solutions provided in this application, the first end of the light shield covers the outside of the display device, the second end of the light shield covers the outside of the image acquisition device, and the light shield gradually shrinks from the first end to the second end.

[0006] In some of the technical solutions provided in this application, the inner wall surface of the light shield is provided with a black matte coating.

[0007] In some of the technical solutions provided in this application, the one-way isolated information transmission device also includes: a power cable and a safety switch, one end of the power cable is connected to the display device, the other end of the power cable is used to connect to the power supply, and the safety switch is located on the power cable.

[0008] In some of the technical solutions provided in this application, the one-way isolated information transmission device also includes: a power cable and a safety switch, one end of the power cable is connected to the display device, the other end of the power cable is used to connect to the power supply, and the safety switch is located on the power cable.

[0009] In some of the technical solutions provided in this application, the encoding module is also used to add a message header to any data block, the message header including a sequence number. The identification device also includes a decoding module, which is used to decode the QR code into data blocks and reassemble multiple data blocks based on the sequence number to form decoded data.

[0010] In some of the technical solutions provided in this application, the encoding module is also used to insert a start block at the beginning of the data block and an end block at the end of the data block, and the decoding module is also used to detect the start block and the end block.

[0011] In some of the technical solutions provided in this application, the sending device further includes a compression module and an encryption module. The compression module is used to compress the original information into compressed information, and the encryption module is used to encrypt the compressed information.

[0012] In some of the technical solutions provided in this application, the identification device further includes a decryption module and a decompression module. The decryption module is used to decrypt the decoded data, and the decompression module is used to decompress the decrypted decoded data into the original information.

[0013] In some of the technical solutions provided in this application, the information unidirectional isolation transmission device further includes: a storage device, which is connected to the identification device and is used to store the original information.

[0014] Compared with related technologies, this utility model has at least the following beneficial effects:

[0015] The original information is represented by a QR code matrix, and optical isolation is achieved using the unidirectional transmission property of light. A secure transmission channel is built between the sending and receiving sides, transmitting information from the sending side to the receiving side in a unidirectional manner. This enables highly secure, high-capacity unidirectional information transmission in a physically isolated environment, meeting the requirements for high-speed and stable information exchange. By supporting the transmission of various file types, it meets the needs of most business scenarios, overcoming the problems of low efficiency and poor adaptability of existing hardware solutions. It solves the three core problems of security, efficiency, and adaptability of information exchange under physical isolation. By setting up a light shield, the requirement for stable acquisition of QR code matrix video signals is solved, improving the accuracy and security of information transmission. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of some embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of an information one-way isolated transmission device according to an embodiment of this application;

[0018] Figure 2 A schematic diagram of an information transmission process according to an embodiment of this application;

[0019] Figure 3 A schematic diagram of a QR code matrix image provided in one embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the structure of a light shield according to one embodiment of this application.

[0021] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0022] 10. One-way isolated information transmission equipment; 100. Transmitting device; 110. Encoding module; 120. Image generation module; 200. Display device; 210. Video cable; 220. Data cable; 300. Image acquisition device; 400. Light shield; 500. Recognition device; 510. Recognition module; 520. Decoding module; 600. Power cable; 700. Safety switch; 800. Panel; 900. Housing; 20. Power supply. Detailed Implementation

[0023] To better understand the above technical solutions, the technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0024] Embodiments of this application provide an information one-way isolated transmission device 10, such as... Figure 1 , Figure 2 and Figure 3As shown, the one-way isolated information transmission device 10 includes: a transmitting device 100, a display device 200, an image acquisition device 300, a light shield 400, and an identification device 500. The transmitting device 100 includes an encoding module 110 and an image generation module 120. The encoding module 110 is used to segment and form multiple data blocks based on the original information, and to encode any data block to form a corresponding QR code. The image generation module 120 is used to generate a QR code matrix image based on the QR code, and the QR code matrix image is composed of multiple QR codes arranged in a row. The display device 200 is connected to the transmitting device 100 and is used to display the QR code matrix image. The image acquisition device 300 is disposed opposite to the display device 200 and is used to acquire the QR code matrix image. The light shield 400 is placed over the display device 200 and the image acquisition device 300. The recognition device 500 is connected to the image acquisition device 300. The recognition device 500 includes a recognition module 510, which is used to recognize multiple QR codes in the QR code matrix image to restore the original information.

[0025] In this embodiment, the original information supports the transmission of binary files. The original information includes text information, image information, audio information, and video information, etc. The file type of the original information is not limited here.

[0026] The transmitting device 100 encodes the original information on the information transmitting side. Specifically, the encoding module 110 of the transmitting device 100 divides the original information into multiple data blocks, and generates a corresponding QR code for each data block according to the information carrying capacity of the QR code. The data volume of any data block is less than or equal to the data capacity of the QR code. The image generation module 120 arranges the multiple QR codes to generate a QR code matrix image in an N×M matrix form. The QR code matrix image includes all QR codes, and the encoded data blocks are arranged into an image in a matrix manner.

[0027] The transmitting device 100 is connected to the display device 200 via a video cable 210 to send QR code matrix image information to the display device 200, so that the QR code matrix image is displayed on the display device 200. The image acquisition device 300 is positioned opposite the display device 200 and acquires the QR code matrix image displayed on the display device 200. For example, the display device 200 can be a monitor or screen, and the image acquisition device 300 can be a camera. Both the display device 200 and the image acquisition device 300 are covered by a light shield 400. The fully enclosed light shield 400 forms a light signal shielding channel, allowing the display signal sent by the display device 200 to reach the receiving image acquisition device 300 through the light signal shielding channel, preventing external viewing of the information inside the light shield 400. The image acquisition device 300 acquires the QR code matrix image inside the light shield 400, which on the one hand avoids interference from external light signals on the acquired image, and on the other hand prevents the display information from being exposed.

[0028] For example, the QR code matrix image can be a dynamic image, the QR code matrix image includes multiple sub-images, each sub-image contains several QR codes, and the display device 200 is used to rotate the dynamic QR code matrix image.

[0029] The image acquisition device 300 and the recognition device 500 are located on the receiving side. For example, the sending side and the receiving side can be located on the intranet and the extranet, respectively. The recognition device 500 is connected to the image acquisition device 300 via a data cable 220. The recognition module 510 of the recognition device 500 recognizes all the QR codes in the QR code matrix image and restores the original information through information decoding to complete the restoration of the original information.

[0030] The original information is represented by a QR code matrix, and optical isolation is achieved using the unidirectional transmission property of light. A secure transmission channel is built between the sending and receiving sides, transmitting the information from the sending side to the receiving side in a unidirectional manner. This enables highly secure, high-capacity unidirectional information transmission in a physically isolated environment, meeting the requirements for high-speed and stable information exchange. This transmission method supports multiple file types and can meet the needs of most business scenarios. It overcomes the problems of low efficiency and poor adaptability of existing hardware solutions, solving the three core issues of security, efficiency, and adaptability of information exchange under physical isolation. By setting a light shield 400, the requirement for stable acquisition of QR code matrix video signals is solved, improving the accuracy and security of information transmission.

[0031] In some embodiments provided in this application, such as Figure 4 As shown, the first end of the light shield 400 covers the display device 200, and the second end of the light shield 400 covers the image acquisition device 300. The light shield 400 gradually shrinks from the first end to the second end.

[0032] In this embodiment, a shape for the light shield 400 is provided. The light shield 400 can be a one-piece molded structure, allowing both ends of the light shield 400 to simultaneously cover the display device 200 and the image acquisition device 300, reducing gaps generated when the two are physically connected and reducing light leakage. It is understood that the projected area of ​​the display device 200 is typically larger than the projected area of ​​the image acquisition device 300. The light shield 400 adopts a gradually tapering shape towards the image acquisition device 300; for example, the shape of the light shield 400 is a pyramid. This allows the shape of the light shield 400 to conform to the propagation path of the light emitted from the display device 200, avoiding unnecessary reflections of light within the light shield 400. While ensuring compliance with the dimensional requirements of both ends, it ensures smooth light transmission within the shielding channel.

[0033] In some embodiments provided in this application, the inner wall surface of the light shield 400 is provided with a black matte coating.

[0034] In this embodiment, specific features of the light shield 400 are provided. The sidewall of the light shield 400 extends from the image acquisition device 300 toward the display device 200. Each sidewall of the light shield 400 is provided with a black matte coating. The black matte coating is a light-shielding material, which makes the light shield 400 sealed with an opaque material. This reduces the impact of light reflection and glare in the shielding channel on the imaging of the image acquisition device 300 or the display of the display device 200, improves the accuracy of display signal transmission, and enhances the confidentiality of display information transmission.

[0035] In some embodiments provided in this application, such as Figure 1 As shown, the one-way isolated information transmission device 10 also includes a power cable 600 and a safety switch 700. One end of the power cable 600 is connected to the display device 200, and the other end of the power cable 600 is used to connect to the power supply 20. The safety switch 700 is located on the power cable 600.

[0036] In this embodiment, a control method for the display device 200 is provided. The display device 200 is connected to the power supply 20 via a power cable 600, and the power supply 20 provides power to the display device 200. A safety switch 700 is provided on the power cable 600, and the operator can control the power supply state of the display device 200 by controlling the open / closed state of the safety switch 700. Specifically, when the safety switch 700 is in the closed state, the power cable 600 is conductive, and the display device 200 is powered on. When the safety switch 700 is in the open state, the power cable 600 is disconnected, and the display device 200 is powered off. In special circumstances, the operator can control the safety switch 700 to stop the operation of the display device 200 in a timely manner, preventing the display device 200 from being exposed to the outside world when transmitting display information, thereby improving the security of information transmission.

[0037] In some embodiments provided in this application, such as Figure 1 As shown, the information one-way isolation transmission device 10 also includes a panel 800, which is detachably connected to the safety switch 700. The opening and closing state of the panel 800 can switch the on and off state of the safety switch 700.

[0038] In this embodiment, a control method for the safety switch 700 is provided. The panel 800 is located on the operating side of the one-way isolated information transmission device 10, and the panel 800 can switch between open and closed states during movement. When the panel 800 is in the closed state, it presses against the safety switch 700, which is closed under pressure, and the display device 200 is powered on and operates normally. When the panel 800 moves to the open state, it separates from the safety switch 700, the pressure on the safety switch 700 is released, and it automatically opens, turning off the display device 200. By operating the panel 800, the safety switch 700 is linked, so that when the operator opens the panel 800, the display device 200 automatically shuts down, improving the automation level of the display device 200 and the security of the displayed information.

[0039] For example, the safety switch 700 also includes a housing 900, a panel 800 rotatably connected to the housing 900, the housing 900 having a receiving cavity, the panel 800 for opening or closing the receiving cavity, and the transmitting device 100, the display device 200, the image acquisition device 300, the light shield 400 and the identification device 500 located inside the receiving cavity.

[0040] In some embodiments provided in this application, the encoding module 110 is further configured to add a message header to any data block, the message header including a sequence number. The identification device 500 further includes a decoding module 520, which is configured to decode the QR code into data blocks and reassemble multiple data blocks based on the sequence number to form decoded data.

[0041] In this embodiment, a data block arrangement method is provided. The encoding module 110 adds a message header containing information such as a sequence number to any data block. The decoding module 520 decodes the identified QR code information, identifies the received sequence number, and inserts the data blocks into the reassembly queue according to the sequence number order to form decoded data, so that multiple data blocks can be correctly sorted and the accuracy of the original information restoration is guaranteed.

[0042] In some embodiments provided in this application, the encoding module 110 is further configured to insert a start block at the beginning of the data block and an end block at the end of the data block, and the decoding module 520 is further configured to detect the start block and the end block.

[0043] In this embodiment, a data block reassembly method is provided. The encoding module 110 inserts a start block at the beginning of multiple data blocks and an end block at the end of multiple data blocks. When arranging multiple data blocks, the decoding module 520 starts from the start block, reassembles the data blocks according to the sequence number in the message header, and completes the reassembly when the end block is detected, thereby obtaining a complete data stream.

[0044] In some embodiments provided in this application, the sending device 100 further includes a compression module and an encryption module, wherein the compression module is used to compress the original information into compressed information, and the encryption module is used to encrypt the compressed information.

[0045] This embodiment provides a method for processing raw information, which involves first compressing and then encrypting the raw information. The compression module uses a compression algorithm to compress the raw information; for example, the compression algorithm can be a ZIP (zone information protocol) algorithm, thereby significantly reducing the amount of data transmitted, especially for text information, thus improving the transmission efficiency in subsequent data transmission processes. After the raw information is compressed, the encryption module uses an encryption algorithm to encrypt the compressed information to ensure the confidentiality of the transmission. Even if optical information is leaked, others cannot decipher the information content without authorization, providing multiple layers of protection for information transmission and making the information transmission process more secure.

[0046] In some embodiments provided in this application, the identification device 500 further includes a decryption module and a decompression module, wherein the decryption module is used to decrypt the decoded data, and the decompression module is used to decompress the decrypted decoded data into the original information.

[0047] In this embodiment, a method for restoring the original information is provided, in which decryption is performed first, followed by decompression. The decryption module uses the same encryption algorithm and key as the encryption module to encrypt the data, and the decompression module uses the same compression algorithm as the compression module. The decryption module decrypts the reconstructed decoded data, and the decompression module decompresses the decrypted decoded data to restore the original information.

[0048] In some embodiments provided in this application, the information unidirectional isolation transmission device 10 further includes a storage device connected to the identification device 500, and the storage device is used to store the original information.

[0049] In this embodiment, after the restored original information is verified to be correct, the identification device 500 sends the original information to the storage device, and the storage device stores the original information to complete the reception of the original information.

[0050] In one specific embodiment, the original information is encoded on the sending side to generate a QR code matrix image of the original information. The display signal is sent to the receiving side through a light-shielding channel, which is implemented using a fully enclosed light shield 400, making the information inside the light shield 400 invisible from the outside. On the receiving side, the QR code matrix image is acquired and recognized by the image acquisition device 300 and the recognition device 500 to complete the information restoration. A safety switch 700 controls whether the display is active. If the safety switch 700 is triggered, the display device 200 stops displaying, thereby preventing information leakage. This achieves secure, efficient, and transparent one-way data transmission between internal and external networks.

[0051] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The above are merely some embodiments of this utility model and are not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A one-way isolated information transmission device, characterized in that, include: A transmitting device includes an encoding module and an image generating module. The encoding module is used to segment and form multiple data blocks based on the original information, and to encode any one of the data blocks to form a corresponding QR code. The image generating module is used to generate a QR code matrix image based on the QR code, and the QR code matrix image is composed of multiple QR codes arranged in a row. A display device is connected to the transmitting device, and the display device is used to display the QR code matrix image; An image acquisition device is disposed opposite to the display device, and the image acquisition device is used to acquire the QR code matrix image; A light shield is provided on the outside of the display device and the image acquisition device; An identification device is connected to the image acquisition device. The identification device includes an identification module, which is used to identify multiple QR codes in the QR code matrix image to restore the original information.

2. The information unidirectional isolation transmission device according to claim 1, characterized in that, The first end of the light shield covers the outside of the display device, and the second end of the light shield covers the outside of the image acquisition device. The light shield gradually narrows from the first end to the second end.

3. The information unidirectional isolation transmission device according to claim 1, characterized in that, The inner wall of the light shield is coated with a matte black finish.

4. The information unidirectional isolation transmission device according to claim 1, characterized in that, Also includes: A power cable, one end of which is connected to the display device, and the other end of which is used to connect to a power source; A safety switch is located on the power cable.

5. The information unidirectional isolation transmission device according to claim 4, characterized in that, Also includes: The panel is detachably connected to the safety switch, and the opening and closing state of the panel can switch the on and off state of the safety switch.

6. The information unidirectional isolation transmission device according to claim 1, characterized in that, The encoding module is also used to add a message header to any of the data blocks, the message header including a sequence number; The identification device further includes: A decoding module is used to decode the QR code into data blocks and reassemble multiple data blocks based on the serial number to form decoded data.

7. The information unidirectional isolation transmission device according to claim 6, characterized in that, The encoding module is further configured to insert a start block at the beginning of the data block and an end block at the end of the data block, and the decoding module is further configured to detect the start block and the end block.

8. The information unidirectional isolation transmission device according to claim 6, characterized in that, The transmitting device further includes: A compression module, used to compress the original information into compressed information; An encryption module is provided, which encrypts the compressed information.

9. The information unidirectional isolation transmission device according to claim 8, characterized in that, The identification device further includes: A decryption module, used to decrypt the decoded data; A decompression module is used to decompress the decrypted decoded data back into the original information.

10. The information unidirectional isolation transmission device according to any one of claims 1 to 9, characterized in that, Also includes: A storage device, connected to the identification device, is used to store the original information.

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