A physically isolated unidirectional data transfer device

Abstract

The application provides a physically isolated one-way data transmission device. The one-way data transmission device comprises a sending network device for data burning on a blank optical disc; a receiving network device which is independent of the sending network device and forms a physically isolated space without signal and physical connection, the receiving network device being used for reading data of a burned optical disc burned by the sending network device; and a conveying device which is suspended between the sending network device and the receiving network device and is used for non-contact receiving of the burned optical disc output by the sending network device and non-contact conveying of the burned optical disc to the receiving network device. The scheme of the application can improve the security in the data transmission process and avoid data leakage due to contact of two network devices in the data transmission process.

Description

Technical Field

[0001] This invention relates to the field of recording and printing technology, and more particularly to a physically isolated unidirectional data transmission device. Background Technology

[0002] Data transfer under physically isolated conditions is typically achieved using two optical drive groups with different security levels and an automated disc transfer device, often called a transfer machine. A transfer machine is an integrated electromechanical device. The automatic disc transfer mechanism of the transfer machine is usually controlled by a high-security network, enabling the loading and unloading of optical discs between two physically isolated optical drives.

[0003] However, for more demanding network edge data transmission requirements, the aforementioned shuttle system fails to meet two conditions. First, there must be a clear physical space between the two networks, even separate rooms with walls separating them. Second, the automatic tray-shifting device cannot connect to either network. Therefore, existing shuttle systems cannot be used for high-security network edge data transmission. Summary of the Invention

[0004] The inventors of this application discovered that in existing transfer systems, the automatic disc transfer device needs to load and unload between two physically isolated optical drives. This may lead to data leakage between the two networks, and its security is insufficient for more demanding network edge data transmission. Furthermore, more demanding network edge data transmission requires a significant physical space between the two networks, and may even require separate rooms with walls separating them.

[0005] One object of the present invention is to provide a physically isolated unidirectional data transmission device to improve the security of data transmission between different networks.

[0006] A further objective of the present invention is to achieve complete physical isolation between different networks.

[0007] In particular, the present invention provides a physically isolated unidirectional data transmission device, comprising:

[0008] Sending network equipment for burning data onto blank optical discs;

[0009] A receiving network device is independent of the sending network device and forms a physically isolated space where there is no signal or physical connection. The receiving network device is used to read data from a burned optical disc burned by the sending network device.

[0010] A transmission device is suspended between the transmitting network device and the receiving network device for contactless reception of the recorded optical disc output by the transmitting network device and contactless transmission of the recorded optical disc to the receiving network device.

[0011] Optionally, the transmitting network device includes:

[0012] CD / DVD burner;

[0013] The first server is electrically connected to the CD burner and is used to control the ejection and closing of the CD burner.

[0014] The first robotic arm assembly includes a first through-beam sensor group for detecting whether the optical drive has been ejected and whether the first optical disc tray of the optical drive contains an optical disc, a first controller electrically connected to the first through-beam sensor group, and a first robotic arm electrically connected to the first controller.

[0015] The first controller is configured to: when the first through-beam sensor group detects that the optical drive has ejected and the first optical disc tray contains an optical disc, control the first robotic arm to grab the optical disc and transport the optical disc to the conveying device;

[0016] Optionally, the first through-beam sensor group is located at the first controller.

[0017] Optionally, the transmitting network device further includes a blank optical disc tray;

[0018] The first controller is configured to: when the first through-beam sensor group detects that the optical drive has been ejected and there is no optical disc in the first optical disc tray, control the first robotic arm to grab a blank optical disc from the blank optical disc tray and move the blank optical disc into the optical drive.

[0019] Optionally, the transmitting network device further includes:

[0020] An output slide plate, tilted toward the conveying device, is used to receive the optical disc carried by the first robotic arm before the first robotic arm carries the optical disc to the conveying device, and to slide the optical disc onto the conveying device.

[0021] Optionally, the receiving network device includes:

[0022] Read-only CD-ROM drive;

[0023] The second server is electrically connected to the read-only optical drive and is used to control the ejection and closing of the read-only optical drive;

[0024] The second robotic arm assembly includes a second through-beam sensor group for detecting whether the read-only optical drive has been ejected and whether the second optical disc tray of the read-only optical drive contains an optical disc, a second controller electrically connected to the second through-beam sensor group, and a second robotic arm electrically connected to the second controller.

[0025] The second controller is configured to: when the second through-beam sensor group detects that the read-only optical drive has been ejected and the second optical disc tray is not carrying an optical disc, control the second robotic arm to grab the optical disc delivered by the conveying device and place the optical disc in the second optical disc tray;

[0026] Optionally, the second through-beam sensor group is located at the second controller.

[0027] Optionally, the receiving network device further includes a waste disk storage area;

[0028] The second controller is configured to: when the second through-beam sensor group detects that the read-only optical drive has been ejected and that the second optical disc tray contains an optical disc, control the second robotic arm to grab the optical disc and transport it to the waste disc compartment.

[0029] Optionally, the receiving network device further includes:

[0030] The input slide is tilted downwards and positioned below the corresponding conveyor belt position, for receiving optical discs transmitted by the conveyor device.

[0031] A disc storage compartment, located below the output end of the input slide plate, is used to receive optical discs that slide out from the input slide plate;

[0032] Optionally, the second controller is configured to retrieve the optical disc from the storage compartment when the second robotic arm grasps the optical disc delivered by the conveying device.

[0033] Optionally, the transmitting network device includes a plurality of first output ports arranged horizontally or vertically, the receiving network device includes a plurality of first input ports arranged horizontally or vertically, and the transmitting device includes a plurality of conveyor belts, each conveyor belt being connected between a first input port and a first output port.

[0034] The input end of the conveyor belt is located below the first output port of the transmitting network device, and the output end of the conveyor belt is located above the input end of the receiving network device.

[0035] Optionally, the conveyor belt is arranged horizontally such that the first output port and the first input port at both ends of the conveyor belt are at approximately the same height;

[0036] Optionally, the conveyor belt is arranged at an angle so that the first output port and the first input port at both ends of the conveyor belt are at different heights.

[0037] Optionally, the transmitting network device includes a plurality of second output ports, and the receiving network device includes a plurality of second input ports. The plurality of second input ports and the plurality of second output ports are arranged vertically and all the second input ports and all the second output ports are located on the same straight line.

[0038] The conveying device is an elevator that can move up and down along the vertical direction.

[0039] According to the solution of the present invention, by setting a transmission device between the transmitting network device and the receiving network device, and the transmission device can receive the recorded optical disc output by the transmitting network device without contacting the transmitting network device, and transmit the recorded optical disc to the receiving network device without contacting the receiving network device, the security of data transmission is improved, and data leakage caused by contact between the two network devices during data transmission is avoided.

[0040] Furthermore, the first server is only electrically connected to the CD-ROM drive and is used solely to control its opening and closing. There is no electrical, signal, or physical connection between the first server and the first robotic arm assembly; in other words, the first robotic arm assembly and the first server are independent of each other. This configuration ensures that there is no connection between the first server and the first robotic arm assembly, preventing the possibility of intrusion and control of the first robotic arm assembly when the first server connects to external data. Similarly, the second server is only electrically connected to the ROM drive and is used solely to control its opening and closing. The second robotic arm assembly controls its movements solely through the second controller and has no signal, physical, or electrical connection with either the second server or the ROM drive. Therefore, there is no electrical, signal, or physical connection between the second server and the second robotic arm assembly; in other words, the second robotic arm assembly and the second server are independent of each other. This configuration ensures that there is no connection between the second server and the second robotic arm assembly, preventing the possibility of data theft by internal personnel on the second server side.

[0041] Furthermore, the transmitting network equipment, receiving network equipment, and transmission device are all independent of each other, with no physical, signal, or electrical connections. This greatly ensures the security of the data transfer process. Not only are the transmitting, receiving, and transmission devices independent, but the first server and the first robotic arm component within the transmitting network equipment are also independent, as are the second server and the second robotic arm component within the receiving network equipment. This further enhances the security of the data transfer process. Additionally, even the first robotic arm and the first output slide are independent, as are the second robotic arm and the first input slide. Therefore, this invention truly achieves zero data leakage during the data transfer process, resulting in extremely high data security with absolutely no risk of leakage.

[0042] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0043] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0044] Figure 1 A schematic perspective view of a physically isolated unidirectional data transmission device according to an embodiment of the present invention is shown, wherein part of the housing structure has been removed;

[0045] Figure 2 A schematic structural diagram of a physically isolated unidirectional data transmission device according to an embodiment of the present invention is shown;

[0046] In the diagram: 1-transmitting network device, 11-CD burner, 111-first CD tray, 12-first robotic arm assembly, 121-first robotic arm, 13-output slide plate, 14-first output port, 15-blank CD tray, 2-receiving network device, 21-CD drive, 211-second CD tray, 22-second robotic arm assembly, 221-second robotic arm, 23-input slide plate, 24-first input port, 25-storage disc tray, 26-waste disc tray, 3-transfer device, 31-conveyor belt. Detailed Implementation

[0047] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the structures related to this application and are not drawn according to the actual number, shape and size of the structures in the actual implementation. In the actual implementation, the form, quantity and proportion of each structure can be arbitrarily changed, and its structural layout may also be more complex.

[0049] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0050] Figure 1 A schematic perspective view of a physically isolated unidirectional data transmission device according to an embodiment of the present invention is shown, wherein part of the housing structure has been removed. Figure 2 A schematic structural diagram of a physically isolated unidirectional data transmission device according to an embodiment of the present invention is shown. Figure 1 and Figure 2As shown, the unidirectional data transmission device includes a transmitting network device 1, a receiving network device 2, and a transmitting device 3. The transmitting network device 1 is used to burn data onto a blank optical disc, and the receiving network device 2 is used to read the data from the burned optical disc by the transmitting network device 1. The receiving network device 2 and the transmitting network device 1 are independent of each other and form a physically isolated space without any signal or physical connection. The spatial positions of the transmitting network device 1 and the receiving network device 2 can be set as needed, but these two network devices must not have any signal or physical connection relationship. For example, these two network devices can be placed in two different buildings, or on different floors of the same building. To achieve complete physical isolation during data transmission, this application designs a completely contactless unidirectional data transmission device, thereby achieving complete physical isolation and avoiding any signal or physical contact during transmission. The unidirectional data transmission device also includes a transmitting device 3, which is suspended between the transmitting network device 1 and the receiving network device 2. This transmitting device 3 is used to receive the burned optical disc output by the transmitting network device 1 without contact and to transmit the burned optical disc to the receiving network device 2 without contact.

[0051] According to the embodiment of the present invention, by providing a transmission device 3 between the sending network device 1 and the receiving network device 2, and by ensuring that the transmission device 3 does not contact the sending network device 1 when receiving the recorded optical disc output by the sending network device 1, and does not contact the receiving network device 2 when transmitting the recorded optical disc to the receiving network device 2, the security of data transmission is improved, and data leakage caused by contact between the two network devices during data transmission is avoided.

[0052] The above technical solutions will be described in detail below with specific embodiments:

[0053] Example 1:

[0054] like Figure 1 and Figure 2As shown, the transmitting network device 1 generally includes a transmitting optical drive group, which includes at least one recordable optical drive 11. Typically, the transmitting optical drive group includes multiple recordable optical drives 11 arranged in an array, which can be vertical, horizontal, or other orientations. The receiving network device 2 generally includes a receiving optical drive group, which includes at least one read-only optical drive 21. Typically, the receiving optical drive group includes multiple read-only optical drives 21 arranged in an array, which can be vertical, horizontal, or other orientations. In a preferred embodiment, the arrangement of the multiple recordable optical drives 11 is consistent with the arrangement of the multiple read-only optical drives 21. For example, if the multiple recordable optical drives 11 are arranged in a vertical array, then the multiple read-only optical drives 21 are also arranged in a vertical array; if the multiple recordable optical drives 11 are arranged in a horizontal array, then the multiple read-only optical drives 21 are also arranged in a horizontal array. The following description uses a scheme in which multiple recordable optical drives 11 and multiple read-only optical drives 21 are arranged in a vertical array as an example, and the multiple vertically arranged recordable optical drives 11 and multiple vertically arranged read-only optical drives 21 are stacked together in a layered arrangement. However, the scope of protection of this invention is not limited thereto.

[0055] The transmitting network device 1 also includes a first server (not shown in the figure), which is electrically connected to the CD / DVD burner 11 and is used to control the ejection and closing of the CD / DVD burner 11. Each CD / DVD burner 11 has an internal detection unit (not shown in the figure) capable of detecting whether it contains a disc. This internal detection unit is electrically connected to the first server. When the internal detection unit detects that the CD / DVD burner 11 contains a disc and that the CD / DVD burner 11 has already executed a burning program on the disc, the first server controls the ejection of the first disc tray 111 of the CD / DVD burner 11. It can be understood that the disc at this time is a burned disc. An external detection unit (not shown in the figure) is also provided on the outside of the CD / DVD burner 11 to detect whether there is a disc on the first disc tray 111 of the ejected CD / DVD burner 11. The first external detection unit is also electrically connected to the first server. When the first external detection unit detects that there is a disc on the first disc tray 111 of the ejected optical drive 11 and that the optical drive 11 has not executed a burning program on the disc, the first server controls the first disc tray 111 of the optical drive 11 to close, so as to send the disc into the interior of the optical drive 11. It can be understood that the disc at this time is a blank disc.

[0056] The transmitting network device 1 also includes a first robotic arm assembly 12. The first robotic arm assembly 12 includes a first through-beam sensor group (not shown) for detecting whether the CD / DVD burner 11 has ejected and whether the first optical disc tray 111 of the CD / DVD burner 11 contains an optical disc, a first controller (not shown) electrically connected to the first through-beam sensor group, and a first robotic arm 121 electrically connected to the first controller. The first controller is stationary, the first robotic arm 121 is movable laterally and vertically, the first through-beam sensor group is fixedly located at the first controller, and its position allows it to detect whether the CD / DVD burner 11 has ejected and whether the first optical disc tray 111 of the ejected CD / DVD burner 11 contains an optical disc. The first through-beam sensor group may include multiple through-beam sensors, where one or more through-beam sensors are used to detect whether the first optical disc tray 111 of the CD / DVD burner 11 has ejected, and another or more through-beam sensors are used to detect whether the first optical disc tray 111 contains an optical disc. The first controller is configured to control the first robotic arm 121 to grab a disc and transport it to the conveying device 3 when the first through-beam sensor group detects that the optical drive 11 has ejected and the first disc tray 111 contains a disc. It is understood that the disc is already recorded at this time. The transmitting network device 1 may also include a blank disc compartment 15, which stores multiple blank discs. The first robotic arm 121 can move to the location of the blank disc compartment 15 and grab a blank disc. The first controller is also configured to control the first robotic arm 121 to grab a blank disc from the blank disc compartment 15 and move it into the optical drive 11 when the first through-beam sensor group detects that the optical drive 11 has ejected and the first disc tray 111 does not contain a disc.

[0057] Therefore, in this embodiment, the first server is only electrically connected to the CD burner 11 and is only used to control the opening and closing of the CD burner 11. There is no electrical, signal, or physical connection between the first server and the first robotic arm assembly 12. In other words, the first robotic arm assembly 12 and the first server are independent of each other. This configuration ensures that there is no connection between the first server and the first robotic arm assembly 12, avoiding the possibility of the first server intruding and controlling the first robotic arm assembly 12 when connecting to external data.

[0058] The transmission network device 1 also includes at least one output slide plate 13. Preferably, it may include multiple output slide plates 13, thus enabling the synchronous output of multiple optical discs. The multiple output slide plates 13 are arranged in a manner consistent with the arrangement of the multiple optical recordable drives 11. For example, when the multiple optical recordable drives 11 are arranged vertically, the multiple output slide plates 13 are arranged vertically and spaced apart; when the multiple optical recordable drives 11 are arranged horizontally, the multiple output slide plates 13 are arranged horizontally and spaced apart. Furthermore, the transmission network device 1 includes at least one first output port 14. The number and arrangement of the first output ports 14 are generally consistent with the number and arrangement of the output slide plates 13, and the first output ports 14 are located at the ends of the output slide plates 13, so that when an optical disc slides from the output slide plate 13 to the transmission device 3, it must pass through the first output port 14 before sliding onto the transmission device 3. The output slide plate 13 is inclined towards the transmission device 3 to receive the optical disc transported by the first robotic arm 121 before the first robotic arm 121 transports the optical disc to the transmission device 3, and to allow the optical disc to slide onto the transmission device 3. There is no physical contact between the output slide plate 13 and the transmission device 3. The optical disc on the output slide plate 13 slides down onto the transmission device 3 by its own gravity. This setting can avoid the possible data leakage problem caused by the contact between the output slide plate 13 and the transmission device 3, and achieve zero leakage in the data output transmission process.

[0059] When the first robotic arm 121 transports the optical disc to the output slide 13, it moves above the output slide 13, releases the disc, and drops it onto the slide 13. Since there is no contact between the first robotic arm 121 and the output slide 13 during this process, the security of the data transmission chain is further ensured. Furthermore, precisely because there is no contact between the first robotic arm 121 and the output slide 13, the optical disc falls onto the slide 13 by its own weight. Therefore, to prevent damage to the optical disc, the distance between the first robotic arm 121 and the output slide 13 is within a suitable range. Within this range, the optical disc will not break when it falls from the first robotic arm 121 onto the output slide 13.

[0060] The conveying device 3 includes at least one conveyor belt 31. Preferably, it may include multiple conveyor belts 31, and the number of conveyor belts 31 may match the number of output slides 13, with one output slide 13 corresponding to one conveyor belt 31. The conveyor belt 31 may be horizontal or inclined at a certain angle, as long as it ensures that the optical disc will not slide on it. Preferably, the conveyor belt 31 is horizontal. The first output port 14 of the transmitting network device 1 is located higher than the input end of the conveyor belt 31 of the conveying device 3. After the optical disc slides out from the first output port 14, it falls to the input end of the conveyor belt 31. To avoid damage to the optical disc during its fall, the height difference between the location of the first output port 14 and the location of the input end of the conveyor belt 31 is within a reasonable range, ensuring that the optical disc will not break during its fall. Furthermore, to prevent the optical disc from flipping or changing position during its fall, the conveying device 3 can be housed in a standard industrial control cabinet. The transmitting network device 1 and the receiving network device 2 can also be housed separately in standard industrial control cabinets.

[0061] The receiving network device 2 also includes a second server (not shown in the figure), which is electrically connected to the read-only optical drive 21 and is used to control the ejection and closing of the read-only optical drive 21. Each read-only optical drive 21 has an internal detection unit (not shown in the figure) capable of detecting whether it contains a disc. This internal detection unit is electrically connected to the second server. When the internal detection unit detects that the read-only optical drive 21 contains a disc and that the read-only optical drive 21 has already executed a reading program on the disc, the second server controls the second disc tray 211 of the read-only optical drive 21 to eject. It can be understood that the disc at this time is a read disc. An external detection unit (not shown in the figure) is also provided on the outside of the read-only optical drive 21 to detect whether the second disc tray 211 of the ejected read-only optical drive 21 contains a disc. The second external detection unit is also electrically connected to the second server. When the second external detection unit detects that there is a disc on the second disc tray 211 of the ejected optical drive 21 and that the optical drive 21 has not performed a reading program on the disc, the second server controls the second disc tray 211 of the optical drive 21 to close, so as to send the disc into the interior of the optical drive 21 for reading. It can be understood that the disc is blank at this time.

[0062] The receiving network device 2 also includes a second robotic arm assembly 22. The second robotic arm assembly 22 includes a second through-beam sensor group (not shown in the figure) for detecting whether the read-only optical drive 21 has been ejected and whether the second optical disc tray 211 of the read-only optical drive 21 contains an optical disc, a second controller (not shown in the figure) electrically connected to the second through-beam sensor group, and a second robotic arm 221 electrically connected to the second controller. The second controller is fixed, the second robotic arm 221 is movable laterally and vertically, the second through-beam sensor group is fixedly mounted at the second controller, and its position allows it to detect whether the read-only optical drive 21 has been ejected, and also whether the second optical disc tray 211 of the ejected read-only optical drive 21 contains an optical disc. The second through-beam sensor group may include multiple through-beam sensors, where one or more through-beam sensors are used to detect whether the second optical disc tray 211 of the read-only optical drive 21 has been ejected, and another or more through-beam sensors are used to detect whether the second optical disc tray 211 contains an optical disc. The second controller is configured to control the second robotic arm 221 to grab the optical disc delivered by the conveyor 3 and place it in the second optical disc tray 211 when the second through-beam sensor group detects that the read-only optical drive 21 has ejected and the second optical disc tray 211 is empty. It is understood that the grabbed optical disc at this time is a recorded disc. The receiving network device 2 may also include a waste disc tray 26, which stores multiple waste optical discs (damaged discs or fully read discs, etc.). The second robotic arm 221 can move to the location of the waste disc tray 26 and discard the waste optical discs into it. The second controller is also configured to control the second robotic arm 221 to grab the optical disc and transport it to the waste disc tray 26 when the second through-beam sensor group detects that the read-only optical drive 21 has ejected and the second optical disc tray 211 is empty. It is understood that the grabbed optical disc at this time is a fully read disc.

[0063] Therefore, in this embodiment, the second server is only electrically connected to the optical drive 21 and is used solely to control the opening and closing of the optical drive 21. The second robotic arm assembly 22 controls the movement of the second robotic arm 221 solely through the second controller, and has absolutely no signal, physical, or electrical connection with the second server or the optical drive 21. Thus, there is no electrical, signal, or physical connection between the second server and the second robotic arm assembly 22; that is, the second robotic arm assembly 22 and the second server are independent of each other. This configuration ensures that there is no connection between the second server and the second robotic arm assembly 22, preventing the possibility of data theft by internal personnel on the second server side.

[0064] The receiving network device 2 also includes at least one input slide 23. Preferably, it may include multiple input slides 23, thus enabling the synchronous input of multiple optical discs. The multiple input slides 23 are arranged in a manner consistent with the arrangement of the multiple optical drives 21. For example, when the multiple optical drives 21 are arranged vertically, the multiple input slides 23 are arranged vertically and spaced apart; when the multiple optical drives 21 are arranged horizontally, the multiple input slides 23 are arranged horizontally and spaced apart. Furthermore, the receiving network device 2 includes at least one first input port 24. The number and arrangement of the first input ports 24 are generally consistent with the number and arrangement of the input slides 23, and the first input port 24 is located at the front end of the input slide 23, so that the optical discs transmitted by the conveyor 3 first pass through the first input port 24 before entering the input slide 23. The output slide 13, the first input port 24, the input slide 23, the first output port 14, and the conveyor belt 31 correspond one-to-one, and they form a group as a whole. The unidirectional data transmission device may include multiple such groups of structures. The first input port 24, the conveyor belt 31, and the first output port 14 of the same group are located at approximately the same height. Although the height of the first output port 14 is slightly higher than the height of the input end of the conveyor belt 31, the overall height difference is not large and can be considered to be essentially zero.

[0065] The input slide 23 is tilted downwards and positioned below the corresponding conveyor belt 31 to receive the optical disc transmitted by the conveyor device 3. Alternatively, the input slide 23 can be positioned approximately flush with the conveyor belt 31. There is no physical contact between the input slide 23 and the conveyor device 3. This arrangement avoids potential data leakage problems caused by contact between the input slide 23 and the conveyor device 3, achieving zero leakage during data output transmission.

[0066] At the end of each input slide 23 (the concept corresponding to the front end, i.e., the rear end), there is also a disc storage compartment 25. This disc storage compartment 25 is located below the output end of the corresponding input slide 23 and is used to receive the optical discs that slide out of the input slide 23. It can be understood that the optical discs on the input slide 23 can slide into the disc storage compartment 25 under their own gravity.

[0067] According to the embodiments of the present invention, the transmitting network device 1, the receiving network device 2, and the transmitting device 3 are all independent of each other, with no physical, signal, or electrical connections. This greatly ensures the security of the data transfer process. Not only are the transmitting network device 1, the receiving network device 2, and the transmitting device 3 independent, but the first server and the first robotic arm component 12 in the transmitting network device 1 are also independent, as are the second server and the second robotic arm component 22 in the receiving network device 2. This further enhances the security of the data transfer process. Furthermore, even the first robotic arm 121 and the first output slide plate 13 are independent, as are the second robotic arm 221 and the first input slide plate 23. Therefore, the present invention truly achieves zero data leakage during the data transfer process, resulting in extremely high data security with no risk of leakage.

[0068] Example 2:

[0069] The difference between Embodiment 2 and Embodiment 1 is that in Embodiment 2, the second external detection unit is the sensor in the second through-beam sensor group of the second robotic arm assembly 22. That is, the second external detection unit is fixedly located at the second controller, and the second server is electrically or signal-connected to the second robotic arm assembly 22. When the second external detection unit detects a disc on the second disc tray 211 of the ejected optical drive 21, it sends a detection signal to the second server. The second server controls the ejection and closure of the optical drive 21 based on the detection result and whether the optical drive 21 has already executed a reading program on the disc. Embodiment 2 is applicable to situations where the security requirements on the second server side are not so high.

[0070] Compared to the solution in Embodiment 1, the solution in this embodiment of the invention has the risk of data leakage because the second server can be connected to the second robotic arm component 22, and there is a possibility that internal personnel may steal the data. However, this second embodiment still has other technical effects of Embodiment 1, which will not be elaborated here.

[0071] Example 3:

[0072] The difference between this embodiment and embodiment one is that in this embodiment, the multiple conveyor belts 31 are deployed in multiple directions and are independent of each other. For example, the transmitting network device 1 includes a row of output slides 13, and the receiving network device 2 includes a row of input slides 23. The number of conveyor belts 31 is equal to the number of output slides 13 or input slides 23, and they correspond one-to-one. The two ends of a conveyor belt 31 can be connected to any input slides 23 and output slides 13 located at the same height or different heights as needed.

[0073] Example 4:

[0074] The difference between Embodiment 4 and Embodiment 1 is that in Embodiment 4, the conveying device 3 does not include a conveyor belt 31; instead, it is a lifting device capable of vertical lifting and lowering. The transmitting network device 1 includes multiple second output ports (not shown in the figure), and the receiving network device 2 includes multiple second input ports (not shown in the figure). The multiple second input ports and multiple second output ports are arranged vertically, and all second input ports and all second output ports are located on the same vertical line. The number of second output ports is the same as the number of output slide plates 13, and they are located at the end of the output slide plates 13. Optical discs passing through the output slide plates 13 must slide out of the transmitting network device 1 through the second output ports. The number of second input ports is the same as the number of input slide plates 23, and they are located at the front end of the input slide plates 23. Optical discs must pass through the second input ports to enter the input slide plates 23 inside the receiving network device 2. The conveying device 3 transports the optical discs output from the second output ports to the second input ports through lifting and lowering motion.

[0075] According to the embodiment of the present invention, by setting the conveying device 3 as an elevator device, its structure is relatively simpler than that of the previous embodiment. However, compared with the previous embodiment, its data transfer process is relatively less secure. Therefore, the solution of this embodiment is more suitable for scenarios with relatively lower security.

[0076] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the common principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A physically isolated unidirectional data transmission device, characterized in that, include: Sending network equipment for burning data onto blank optical discs; A receiving network device is independent of the sending network device and forms a physically isolated space where there is no signal or physical connection. The receiving network device is used to read data from a burned optical disc burned by the sending network device. A transmission device is suspended between the transmitting network device and the receiving network device for receiving the recorded optical disc output by the transmitting network device without contact, and transmitting the recorded optical disc to the receiving network device without contact. The transmitting network device includes an output slide plate that is tilted toward the transmitting device to allow the optical disc to slide onto the transmitting device. The first output port of the transmitting network device is located higher than the input end of the conveyor belt of the transmitting device; There is no physical contact between the output slide plate and the transmission device; the optical disc on the output slide plate slides onto the transmission device by its own gravity. The receiving network device includes an input slide plate that tilts downwards for receiving an optical disc transmitted by the transmitting device. The position of the input skateboard is lower than the position of the corresponding conveyor belt; There is no physical contact between the input slide and the transmission device.

2. The unidirectional data transmission device according to claim 1, characterized in that, The transmitting network device includes: CD / DVD burner; The first server is electrically connected to the CD burner and is used to control the ejection and closing of the CD burner. The first robotic arm assembly includes a first through-beam sensor group for detecting whether the optical drive has ejected and whether the first optical disc tray of the optical drive holds an optical disc, a first controller electrically connected to the first through-beam sensor group, and a first robotic arm electrically connected to the first controller. The first controller is configured to: when the first through-beam sensor group detects that the optical drive has ejected and the first optical disc tray contains an optical disc, control the first robotic arm to grab the optical disc and transport the optical disc to the conveying device; The first through-beam sensor group is located at the first controller.

3. The unidirectional data transmission device according to claim 2, characterized in that, The transmitting network device also includes a blank optical disc tray; The first controller is configured to: when the first through-beam sensor group detects that the optical drive has been ejected and there is no optical disc in the first optical disc tray, control the first robotic arm to grab a blank optical disc from the blank optical disc tray and move the blank optical disc into the optical drive.

4. The unidirectional data transmission device according to claim 2 or 3, characterized in that, The The output slide is used to receive the optical disc carried by the first robotic arm before the first robotic arm carries the optical disc to the conveying device.

5. The unidirectional data transmission device according to claim 4, characterized in that, The receiving network device includes: Read-only CD-ROM drive; The second server is electrically connected to the read-only optical drive and is used to control the ejection and closing of the read-only optical drive; The second robotic arm assembly includes a second through-beam sensor group for detecting whether the read-only optical drive has been ejected and whether the second optical disc tray of the read-only optical drive contains an optical disc, a second controller electrically connected to the second through-beam sensor group, and a second robotic arm electrically connected to the second controller. The second controller is configured to: when the second through-beam sensor group detects that the read-only optical drive has been ejected and the second optical disc tray is not carrying an optical disc, control the second robotic arm to grab the optical disc delivered by the conveying device and place the optical disc in the second optical disc tray; The second beam sensor group is located at the second controller.

6. The unidirectional data transmission device according to claim 5, characterized in that, The receiving network equipment also includes a waste disk storage area; The second controller is configured to: when the second through-beam sensor group detects that the read-only optical drive has been ejected and that the second optical disc tray contains an optical disc, control the second robotic arm to grab the optical disc and transport it to the waste disc compartment.

7. The unidirectional data transmission device according to claim 5, characterized in that, The input skateboard is located below the corresponding conveyor belt. The receiving network device further includes: A disc storage compartment, located below the output end of the input slide plate, is used to receive optical discs that slide out from the input slide plate; The second controller is configured to retrieve the optical disc from the storage compartment when the second robotic arm picks up the optical disc delivered by the conveying device.

8. The unidirectional data transmission device according to any one of claims 5-7, characterized in that, The transmitting network device includes multiple first output ports arranged horizontally or vertically, the receiving network device includes multiple first input ports arranged horizontally or vertically, and the transmitting device includes multiple conveyor belts, each conveyor belt being connected between a first input port and a first output port. The input end of the conveyor belt is located below the first output port of the transmitting network device, and the output end of the conveyor belt is located above the input end of the receiving network device.

9. The unidirectional data transmission device according to claim 8, characterized in that, The conveyor belt is arranged horizontally so that the first output port and the first input port at both ends of the conveyor belt are at the same height; Alternatively, the conveyor belt may be arranged at an angle so that the first output port and the first input port at both ends of the conveyor belt are at different heights.

10. The unidirectional data transmission device according to any one of claims 5-7, characterized in that, The transmitting network device includes multiple second output ports, and the receiving network device includes multiple second input ports. The multiple second input ports and the multiple second output ports are arranged vertically, and all the second input ports and all the second output ports are located on the same straight line. The conveying device is an elevator that can move up and down along the vertical direction.

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