Multi-port network communication control circuit for USB-C switching and communication switching equipment

Abstract

The utility model relates to the technical field of communication, and discloses a multi-port network communication control circuit used for USB-C switching and a communication switching device. When the multi-port network communication control circuit used for USB-C switching is implemented, single / multi-network interface switching is carried out on an output mode of a first network conversion sub-circuit through a control sub-circuit, and networking state switching of a second network conversion sub-circuit is combined, so that the multi-port network communication control circuit used for USB-C switching is realized. And dual dynamic adaptation of the physical layer and the protocol layer is realized. According to the mechanism, network resource allocation can be adjusted in real time according to equipment communication requirements, on the basis of realizing an uplink multi-port network communication function, the continuity and stability of network communication when a product executes single network interface or multi-network interface switching are improved, and the multi-equipment concurrent communication efficiency can be improved when a multi-network interface is switched; in addition, the arranged network connection sub-circuit can perform isolation filtering on the received network signal, thereby facilitating reduction of crosstalk of the USB-C interface in network signal transmission and improvement of transmission quality of the network signal.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, and in particular to a multi-port network communication control circuit and communication switching device for USB-C switching. Background Technology

[0002] With the widespread use and diversification of electronic devices, users often need to connect multiple devices (such as computers and tablets) to the network simultaneously for data transmission and network communication. Existing USB-C switches, as interface expansion devices, can handle device switching, interface conversion, signal conversion, and power distribution, providing convenience for users. However, existing technologies have certain limitations in network communication processing.

[0003] In existing technology, each computer or tablet device needs to be connected to a separate RJ45 network interface via a USB-C switch, and each RJ45 interface requires a USB-to-RJ45 network adapter chip to enable communication between the device and the external network. While this solution can meet the internet access needs of a single device, it has the following problems in practical applications:

[0004] Limitations of a single network interface: Each RJ45 interface can only support network communication for one upstream device. When users need to connect multiple devices simultaneously and access the internet at the same time, each device must be equipped with an independent RJ45 interface and a corresponding network conversion chip. This not only increases hardware costs but also leads to larger device size and reduced portability.

[0005] Network interruption during device switching: Since each RJ45 interface only supports the internet access needs of a single device during device switching, network connectivity may be interrupted, impacting user experience. This is especially problematic when multiple devices need to be online simultaneously, as current technology cannot meet the requirements. Utility Model Content

[0006] This invention provides a multi-port network communication control circuit for USB-C switching, which can improve the switching flexibility, stability and reliability of single or multiple devices in network connectivity.

[0007] To address the aforementioned technical problems, the first aspect of this utility model discloses a multi-port network communication control circuit for USB-C switching. The circuit includes a network connection sub-circuit, a first network conversion sub-circuit, a second network conversion sub-circuit, and a control sub-circuit, wherein:

[0008] The first terminal of the network connection sub-circuit is used to access network signals; the second terminal of the network connection sub-circuit is electrically connected to the first terminal of the first network conversion sub-circuit; the second terminal of the first network conversion sub-circuit is electrically connected to the first terminal of the second network conversion sub-circuit; the third terminal of the first network conversion sub-circuit is communicatively connected to the first terminal of the control sub-circuit; the second terminal of the second network conversion sub-circuit is communicatively connected to the second terminal of the control sub-circuit; the third terminal of the second network conversion sub-circuit is used to access the signal input terminal of a USB device.

[0009] The network connection sub-circuit is used to perform signal isolation and filtering processing on the network signal after it is connected to the network signal, and to transmit the corresponding first signal to the first network conversion sub-circuit.

[0010] The control sub-circuit is used to control the first network conversion sub-circuit to perform interface output mode switching and the second network conversion sub-circuit to perform network signal access state switching according to the user's device communication needs; the mode switching includes switching between single network interface output mode and multi-network interface output mode; the state switching includes switching between network output state and non-network output state.

[0011] As an optional implementation, in the first aspect of this utility model, the first network conversion sub-circuit includes a first network conversion module, a reset module, and a first power supply module, wherein:

[0012] The second terminal of the network connection sub-circuit is electrically connected to the first terminal of the first network conversion module; the second terminal of the first network conversion module is electrically connected to the first terminal of the second network conversion sub-circuit; the third terminal of the first network conversion module is communicatively connected to the first terminal of the control sub-circuit.

[0013] The fourth terminal of the first network conversion module is electrically connected to the first terminal of the reset module; the fifth terminal of the first network conversion module is electrically connected to the first terminal of the first power module; the second terminal of the first power module is electrically connected to the second terminal of the reset module; the input terminal of the first power module is used to connect to a power supply.

[0014] The first network conversion module is used to receive a mode switching instruction transmitted by the control sub-circuit, and perform mode switching between single network interface output mode and multiple network interface output mode on the first network conversion module according to the mode switching instruction.

[0015] The reset module is used to control the module operation state corresponding to the first network conversion module according to the signal state corresponding to the reset signal in the reset module; wherein, when the signal state is a pull-up state, the module operation state is a start-up state; when the signal state is a pull-down state, the module operation state is a sleep state.

[0016] The first power module is used to supply power to the first network conversion module and the reset module.

[0017] As an optional implementation, in the first aspect of this utility model, the first network conversion sub-circuit further includes a first storage module and a first filtering module, wherein:

[0018] The fifth terminal of the first network conversion module is electrically connected to the first terminal of the first storage module; the sixth terminal of the first network conversion module is electrically connected to the first terminal of the first filtering module; and the second terminal of the first filtering module is electrically connected to the second terminal of the first power module.

[0019] The first storage module is used to store at least one of the following data corresponding to the first network conversion module: module configuration parameters, non-real-time data, firmware code, operating system image, and static resources.

[0020] The first filtering module is used to perform power filtering on the power supply signal of the first power supply module.

[0021] As an optional implementation, in the first aspect of this utility model, the second network conversion sub-circuit includes a second network conversion module, a second storage module, and a second power supply module, wherein:

[0022] The second terminal of the first network conversion module is electrically connected to the first terminal of the second network conversion module; the second terminal of the second network conversion module is communicatively connected to the second terminal of the control sub-circuit; the third terminal of the second network conversion module is used to connect to the signal input terminal of the USB device.

[0023] The fourth terminal of the second network conversion module is electrically connected to the first terminal of the second storage module; the fifth terminal of the second network conversion module is electrically connected to the first terminal of the second power module; the second terminal of the second storage module is electrically connected to the second terminal of the second power module; the input terminal of the second power module is used to connect to a power supply.

[0024] The second network conversion module is used to receive a network switching command transmitted by the control sub-circuit, and to perform a state switch between network output state and non-network output state for the second network conversion module according to the network switching command;

[0025] The second network conversion module is further configured to convert the network signal transmitted via the first network conversion module into a USB signal adapted to the USB device;

[0026] The second storage module is used to store the determination program and temporary calculation data corresponding to the second network conversion module;

[0027] The second power module is used to supply power to the second network conversion module and the second storage module.

[0028] As an optional implementation, in the first aspect of this utility model, the second network conversion sub-circuit further includes a first isolation module and a second filtering module, wherein:

[0029] The sixth terminal of the second network conversion module is electrically connected to the first terminal of the first isolation module; the first terminal of the second filter module is electrically connected to the first terminal of the second power module; the second terminal of the second filter module is electrically connected to the third terminal of the second power module.

[0030] The first isolation module is used to perform signal isolation for the interactive signals input to the second network conversion module;

[0031] The second filtering module is used to perform filtering and voltage regulation on the input power supply connected to the second network conversion module.

[0032] As an optional implementation, in the first aspect of this utility model, the control sub-circuit includes a key switching module, a control module, and a third power supply module, wherein:

[0033] The third terminal of the first network conversion module is communicatively connected to the first terminal of the control module; the second terminal of the second network conversion module is communicatively connected to the second terminal of the control sub-circuit.

[0034] The third terminal of the control sub-circuit is electrically connected to the first terminal of the button switching module; the fourth terminal of the control sub-circuit is electrically connected to the first terminal of the third power supply module.

[0035] The control module is used to generate the mode switching command for the first network conversion module and / or the network switching command for the second network conversion module according to the user's device communication requirements.

[0036] The button switching module is used to switch the start and stop of the control module;

[0037] The third power supply module is used to supply power to the button switching module and the control module.

[0038] As an optional implementation, in the first aspect of this utility model, the control sub-circuit further includes an indicator light module, wherein:

[0039] The fourth terminal of the control sub-circuit is electrically connected to the first terminal of the indicator module;

[0040] The indicator light module is used to control the display of the indicator light according to the network status of the second network conversion module and the network status of the USB device; wherein, when the second network conversion module is in the network output state and the USB device is in the network access state, the indicator light module switches to a lit or flashing display state.

[0041] As an optional implementation, in the first aspect of this utility model, the network connection sub-circuit includes a network connection module and a fourth power supply module, wherein:

[0042] The first end of the network connection module is used to access network signals; the second end of the network connection module is electrically connected to the first end of the first network conversion module; the third end of the network connection module is electrically connected to the first end of the fourth power module; the second end of the fourth power module is used to access a power supply.

[0043] The network connection module is used to provide network access to the first network conversion module, the second network conversion module, the control module, and the USB device based on the accessed network signal.

[0044] The fourth power module is used to perform input power filtering, voltage regulation and power supply operations on the network connection module.

[0045] As an optional implementation, in the first aspect of this utility model, the network connection sub-circuit further includes a second isolation module, wherein:

[0046] The first end of the second isolation module is used to access the network signal; the second end of the second isolation module is electrically connected to the first end of the network connection module.

[0047] The second isolation module is used to isolate the network connection module from interference from external network connections.

[0048] The second aspect of this utility model discloses a communication switching device, which includes a device body and a multi-port network communication control circuit for USB-C switching as disclosed in any of the first aspects.

[0049] Implementing this utility model has the following beneficial effects:

[0050] This invention provides a multi-port network communication control circuit for USB-C switching. By implementing this invention, the output mode of the first network conversion sub-circuit is switched between single and multiple network interfaces through a control sub-circuit, and combined with the network status switching of the second network conversion sub-circuit, dual dynamic adaptation at the physical layer and protocol layer is achieved. This mechanism can adjust network resource allocation in real time according to device communication needs, realizing uplink multi-port network communication functionality while improving the continuity and stability of network communication when switching between single and multiple network interfaces. Furthermore, when switching to multiple network interfaces, it can improve the efficiency of concurrent communication between multiple devices. In addition, the network connection sub-circuit can perform isolation filtering on the received network signals, which helps reduce crosstalk in network signal transmission via the USB-C interface and improves the transmission quality of network signals. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 This is a schematic diagram of a multi-port network communication control circuit for USB-C switching disclosed in an embodiment of the present invention;

[0053] Figure 2 This is a schematic diagram of another multi-port network communication control circuit for USB-C switching disclosed in this embodiment of the present invention;

[0054] Figure 3 This is a schematic diagram of another multi-port network communication control circuit for USB-C switching disclosed in this utility model embodiment;

[0055] Figure 4 This is a schematic diagram of the structure of a first network conversion module disclosed in an embodiment of the present utility model;

[0056] Figure 5 This is a schematic diagram of the structure of a reset module disclosed in an embodiment of this utility model;

[0057] Figure 6 This is a schematic diagram of the structure of a first storage module disclosed in an embodiment of the present utility model;

[0058] Figure 7 This is a schematic diagram of the structure of a first filtering module disclosed in an embodiment of this utility model;

[0059] Figure 8This is a schematic diagram of the structure of a second network conversion module disclosed in an embodiment of the present utility model;

[0060] Figure 9 This is a schematic diagram of the structure of a first isolation module disclosed in an embodiment of this utility model;

[0061] Figure 10 This is a schematic diagram of the structure of a button switching module disclosed in an embodiment of this utility model;

[0062] Figure 11 This is a schematic diagram of the structure of a control module disclosed in an embodiment of this utility model;

[0063] Figure 12 This is a schematic diagram of the structure of an indicator light module disclosed in an embodiment of this utility model;

[0064] Figure 13 This is a schematic diagram of the structure of a network connection module disclosed in an embodiment of this utility model;

[0065] Figure 14 This is a schematic diagram of the structure of a second isolation module disclosed in an embodiment of this utility model;

[0066] Figure 15 This is a schematic diagram of the structure of a communication switching device disclosed in an embodiment of this utility model. Detailed Implementation

[0067] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0068] It should be noted that, unless otherwise expressly specified and limited, the term "electrical connection" in the specification, claims, and accompanying drawings of this utility model should be interpreted broadly. For example, it can be a fixed electrical connection, a detachable electrical connection, or an integral electrical connection; it can be a mechanical electrical connection, an electrical-electrical connection, or a connection that allows for communication; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements or an interaction between two elements. Furthermore, the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. The terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0069] Example 1

[0070] Please see Figure 1 , Figure 1 This is a schematic diagram of a multi-port network communication control circuit for USB-C switching disclosed in an embodiment of the present invention. This circuit can be applied to USB-C converters, but the present invention does not limit its application. Figure 1 As shown, the multi-port network communication control circuit for USB-C switching includes a network connection sub-circuit 10, a first network conversion sub-circuit 20, a second network conversion sub-circuit 30, and a control sub-circuit 40, wherein:

[0071] The first terminal of the network connection sub-circuit 10 is used to access network signals; the second terminal of the network connection sub-circuit 10 is electrically connected to the first terminal of the first network conversion sub-circuit 20; the second terminal of the first network conversion sub-circuit 20 is electrically connected to the first terminal of the second network conversion sub-circuit 30; the third terminal of the first network conversion sub-circuit 20 is communicatively connected to the first terminal of the control sub-circuit 40; the second terminal of the second network conversion sub-circuit 30 is communicatively connected to the second terminal of the control sub-circuit 40; the third terminal of the second network conversion sub-circuit 30 is used to access the signal input terminal of a USB device.

[0072] The network connection sub-circuit 10 is used to perform signal isolation and filtering on the network signal after it is connected to the network signal, and to transmit the corresponding first signal to the first network conversion sub-circuit 20.

[0073] The control sub-circuit 40 is used to control the first network conversion sub-circuit 20 to perform interface output mode switching and the second network conversion sub-circuit 30 to perform network signal access state switching according to the user's equipment communication needs. The mode switching includes switching between single network interface output mode and multi-network interface output mode; the state switching includes switching between network output state and non-network output state.

[0074] In this embodiment of the present invention, in conventional technology, a single network interface can only achieve network communication of a single uplink interface through a USB converter, and multiple RJ45 interfaces are required if multiple devices need to access the Internet at the same time during the switching process. This circuit can reduce the number of interfaces required for multiple devices to connect to the Internet.

[0075] It is evident that implementation Figure 1 The described multi-port network communication control circuit for USB-C switching achieves dual dynamic adaptation of the physical and protocol layers by controlling the output mode of the first network conversion sub-circuit to switch between single and multiple network interfaces, and combining this with the network status switching of the second network conversion sub-circuit. This mechanism can adjust network resource allocation in real time according to device communication needs, achieving uplink multi-port network communication while improving the continuity and stability of network communication when switching between single and multiple network interfaces. Furthermore, it enhances the efficiency of concurrent communication between multiple devices when switching to multiple network interfaces. In addition, the network connection sub-circuit can perform isolation filtering on received network signals, which helps reduce crosstalk in network signal transmission via the USB-C interface and improves the transmission quality of network signals.

[0076] In an optional embodiment, such as Figure 2 As shown, Figure 2 This is a schematic diagram of another multi-port network communication control circuit for USB-C switching disclosed in this embodiment of the present invention, as shown below. Figure 2 As shown, the first network conversion sub-circuit 20 includes a first network conversion module 201, a reset module 202, and a first power supply module 203, wherein:

[0077] The second terminal of the network connection sub-circuit 10 is electrically connected to the first terminal of the first network conversion module 201; the second terminal of the first network conversion module 201 is electrically connected to the first terminal of the second network conversion sub-circuit 30; and the third terminal of the first network conversion module 201 is communicatively connected to the first terminal of the control sub-circuit 40.

[0078] The fourth terminal of the first network conversion module 201 is electrically connected to the first terminal of the reset module 202; the fifth terminal of the first network conversion module 201 is electrically connected to the first terminal of the first power module 203; the second terminal of the first power module 203 is electrically connected to the second terminal of the reset module 202; the input terminal of the first power module 203 is used to connect to the power supply.

[0079] The first network conversion module 201 is used to receive the mode switching instruction transmitted by the control sub-circuit 40, and perform mode switching between single network interface output mode and multi-network interface output mode according to the mode switching instruction.

[0080] The reset module 202 is used to control the module operation state of the first network conversion module 201 according to the signal state corresponding to the reset signal in the reset module 202; wherein, when the signal state is in the pull-up state, the module operation state is in the start-up state; when the signal state is in the pull-down state, the module operation state is in the sleep state.

[0081] The first power supply module 203 is used to supply power to the first network conversion module 201 and the reset module 202.

[0082] In this optional embodiment, in practical applications, the first network conversion module 201 may employ a main control chip of model RTL8367N-VB, and the first network conversion module can be used to achieve one-to-many switching of network interfaces, thereby enabling multiple network interfaces to share the bandwidth of the output signal. Further details regarding the specific structure of the first network conversion module can be found in [link to relevant documentation]. Figure 4 , Figure 4 This is a schematic diagram of the structure of a first network conversion module disclosed in an embodiment of the present utility model.

[0083] In this optional embodiment, regarding the reset module, please refer to... Figure 5 , Figure 5 This is a schematic diagram of the structure of a reset module disclosed in an embodiment of this utility model. Figure 5 As shown, Figure 5 U48 is the core component of the reset module. Furthermore, U48 is an AND gate used to control the reset of the first network conversion module. When the uplink interface is connected, the reset signal will be pulled high, and the first network conversion module will start working.

[0084] As can be seen, in this optional embodiment, with the first network conversion module as the core, it can receive and respond to mode switching commands issued by the control sub-circuit, flexibly switching between single network interface output and multiple network interface output. This realizes the function of multiple network interfaces sharing the output signal bandwidth. Furthermore, the efficient and precise switching mechanism ensures the integrity and continuity of data during switching, avoiding communication interruptions or data loss caused by mode switching. In addition, by introducing a reset module, the reset signal status (pull-up or pull-down) can be detected, thereby intelligently controlling the startup and hibernation of the first network conversion module. This reset module prevents circuit freezes caused by prolonged operation or abnormal states, improving the stability and reliability of the first network conversion sub-circuit. Simultaneously, the reset mechanism can quickly restore the circuit to its initial state when necessary, reducing fault recovery time.

[0085] In this optional embodiment, optionally, such as Figure 2As shown, the first network conversion sub-circuit 20 further includes a first storage module 204 and a first filtering module 205, wherein:

[0086] The fifth terminal of the first network conversion module 201 is electrically connected to the first terminal of the first storage module 204; the sixth terminal of the first network conversion module 201 is electrically connected to the first terminal of the first filter module 205; and the second terminal of the first filter module 205 is electrically connected to the second terminal of the first power supply module 203.

[0087] The first storage module 204 is used to store at least one of the following data corresponding to the first network conversion module 201: module configuration parameters, non-real-time data, firmware code, operating system image, and static resources.

[0088] The first filtering module 205 is used to perform power filtering on the power supply signal of the first power supply module 203.

[0089] In this optional embodiment, the first storage module may include an EPPROM and an SPI Flash. Specifically, the EPPROM and SPI Flash may be reserved storage devices to prevent insufficient memory during the main control chip's operation and to enable external data storage. For the specific structure of the EPPROM and SPI Flash, please refer to [link to relevant documentation]. Figure 6 , Figure 6 This is a schematic diagram of the structure of a first storage module disclosed in an embodiment of this utility model; as shown... Figure 6 As shown, U45 corresponds to the relevant circuit structure of EPPROM; U46 corresponds to the relevant circuit structure of SPI Flash.

[0090] In this optional embodiment, please refer to the specific structure of the first filtering module. Figure 7 , Figure 7 This is a schematic diagram of the structure of a first filtering module disclosed in an embodiment of the present utility model; the first power supply module filters the power supply provided by the first network conversion module by setting the series-parallel capacitor and inductor; optionally, the first filtering module can also be used to perform signal filtering on the network signal input to the first network conversion module.

[0091] As can be seen, in this optional embodiment, by setting a first storage module, the data processing flexibility of the first network conversion module can be improved, and it can be used to store external data, preventing memory shortage problems during the operation of the first network conversion module, which is conducive to enhancing the stability and reliability of the first network conversion sub-circuit. Furthermore, the setting of the first filtering module can effectively filter out noise and interference in the network signal, which is beneficial to improving the quality and transmission efficiency of the network signal. At the same time, the collaborative work of the filtering module and the first power supply module can also reduce the impact of power supply noise on the first network conversion module, realizing refined power supply management and improving the overall energy efficiency of the first network conversion sub-circuit.

[0092] In another alternative embodiment, such as Figure 2 As shown, the second network conversion sub-circuit 30 includes a second network conversion module 301, a second storage module 302, and a second power supply module 303, wherein:

[0093] The second terminal of the first network conversion module 201 is electrically connected to the first terminal of the second network conversion module 301; the second terminal of the second network conversion module 301 is communicatively connected to the second terminal of the control sub-circuit 40; the third terminal of the second network conversion module 301 is used to connect to the signal input terminal of a USB device.

[0094] The fourth terminal of the second network conversion module 301 is electrically connected to the first terminal of the second storage module 302; the fifth terminal of the second network conversion module 301 is electrically connected to the first terminal of the second power module 303; the second terminal of the second storage module 302 is electrically connected to the second terminal of the second power module 303; the input terminal of the second power module 303 is used to connect to the power supply.

[0095] The second network conversion module 301 is used to receive the network switching command transmitted by the control sub-circuit 40, and perform state switching between network output state and non-network output state on the second network conversion module 301 according to the network switching command.

[0096] The second network conversion module 301 is also used to convert the network signal transmitted via the first network conversion module 201 into a USB signal adapted to the USB device.

[0097] The second storage module 302 is used to store the determination program and temporary calculation data corresponding to the second network conversion module 301;

[0098] The second power supply module 303 is used to supply power to the second network conversion module 301 and the second storage module 302.

[0099] In this optional embodiment, please refer to the specific structure of the second network conversion module. Figure 8 , Figure 8This is a schematic diagram of the structure of a second network conversion module disclosed in an embodiment of this utility model. Figure 8 As shown, Figure 8 The U39 is a USB-to-network control chip, which is the core component of the second network conversion module. It can be used to realize the conversion between network communication and USB signals, as well as to realize communication between USB devices and external networks.

[0100] In this optional embodiment, the specific structure of the second storage module is similar to that of the first storage module described above, except that the first storage module is connected to the first network conversion module and the second storage module is connected to the second network conversion module; therefore, the circuit structure of the second storage module will not be described separately here.

[0101] As can be seen, in this optional embodiment, the second network conversion module can receive network switching instructions transmitted by the control sub-circuit and quickly switch between network output state and non-network output state, thereby improving the flexibility and response speed of network communication. In addition, the setting of the second storage module can provide the necessary storage space for data processing and operation during the network conversion process, which is conducive to improving the efficiency and accuracy of data processing, and also helps to optimize the overall performance of the second network conversion sub-circuit.

[0102] In this optional embodiment, such as Figure 2 As shown, the second network conversion sub-circuit 30 further includes a first isolation module 304 and a second filtering module 305, wherein:

[0103] The sixth terminal of the second network conversion module 301 is electrically connected to the first terminal of the first isolation module 304; the first terminal of the second filter module 305 is electrically connected to the first terminal of the second power supply module 303; the second terminal of the second filter module 305 is electrically connected to the third terminal of the second power supply module 303.

[0104] The first isolation module 304 is used to perform signal isolation for the interactive signals input to the second network conversion module 301;

[0105] The second filtering module 305 is used to perform filtering and voltage regulation on the input power supply connected to the second network conversion module 301.

[0106] In this optional embodiment, it should be noted that the specific structure of the second filtering module is similar to that of the first filtering module described above, both using multiple series and parallel capacitors and inductors to achieve power filtering and / or signal filtering; therefore, the circuit structure of the second filtering module will not be described separately here.

[0107] In this optional embodiment, please refer to the specific structure of the first isolation module. Figure 9 , Figure 9This is a schematic diagram of the structure of a first isolation module disclosed in an embodiment of this utility model; as shown... Figure 9 As shown, signal isolation is achieved by setting multiple sets of capacitors and resistors.

[0108] As can be seen, in this optional embodiment, by introducing the first isolation module, effective signal isolation is provided for the interactive signals input to the second network conversion module, thereby reducing external signal interference, improving the stability and accuracy of signal transmission, and improving the reliability and quality of network communication; at the same time, the setting of the second filtering module can filter out noise in the power supply, which is beneficial to improving the power supply stability and reliability of the second network conversion module.

[0109] In yet another alternative embodiment, such as Figure 2 As shown, the control sub-circuit 40 includes a key switching module 401, a control module 402, and a third power supply module 403, wherein:

[0110] The third terminal of the first network conversion module 201 is communicatively connected to the first terminal of the control module 402; the second terminal of the second network conversion module 301 is communicatively connected to the second terminal of the control sub-circuit 40.

[0111] The third terminal of the control sub-circuit 40 is electrically connected to the first terminal of the key switch module 401; the fourth terminal of the control sub-circuit 40 is electrically connected to the first terminal of the third power supply module 403.

[0112] The control module 402 is used to generate mode switching instructions for the first network conversion module 201 and / or network switching instructions for the second network conversion module 301 according to the user's device communication requirements.

[0113] The button switching module 401 is used to switch the start and stop of the control module 402;

[0114] The third power supply module 403 is used to supply power to the button switching module 401 and the control module 402.

[0115] For the specific circuit structure of the button switching module in this optional embodiment, please refer to [link / reference]. Figure 10 , Figure 10 This is a schematic diagram of the structure of a button switching module disclosed in an embodiment of this utility model; as shown... Figure 10 As shown, Figure 10 The switchkey in the text corresponds to the core component of the button switching module. This button is connected to the control module to control its start-up, disconnection, and signal transmission and reception.

[0116] For the specific circuit structure of the control module in this optional embodiment, please refer to [link / reference]. Figure 11 , Figure 11This is a schematic diagram of the structure of a control module disclosed in an embodiment of this utility model; as shown... Figure 11 As shown, Figure 11 U14 is the core component of the control module. Based on this control module, the first network conversion module and the second network conversion module can be linked and interacted based on I2C communication, and intelligent connection and switching of network communication can be completed through buttons or indicator lights.

[0117] As can be seen, in this optional embodiment, by setting a control module, mode switching instructions for the first network conversion module and / or network switching instructions for the second network conversion module can be generated according to the user's device communication needs, so as to control the two modules with precise and efficient communication instructions, thereby improving the accuracy, flexibility and efficiency of communication; in addition, the introduction of the button switching module allows the user to quickly switch the working state of the control module through simple button operation, thereby improving the user's convenience in switching the start and stop of the control module.

[0118] In this optional embodiment, such as Figure 2 As shown, the control sub-circuit 40 also includes an indicator light module 404, wherein:

[0119] The fourth terminal of the control sub-circuit 40 is electrically connected to the first terminal of the indicator module 404;

[0120] The indicator light module 404 is used to control the display of the indicator light according to the network status of the second network conversion module 301 and the network status of the USB device; wherein, when the second network conversion module 301 is in the network output state and the USB device is in the network access state, the indicator light module 404 switches to the display state of being lit or flashing.

[0121] For the specific circuit structure of the indicator module in this optional embodiment, please refer to [link / reference]. Figure 12 , Figure 12 This is a structural schematic diagram of an indicator light module disclosed in an embodiment of this utility model; as shown... Figure 12 As shown, this indicator light module can be used to determine network connectivity. Specifically, it can be set to illuminate the indicator light when the network connection is normal, thereby determining the network connection status based on the brightness and darkness of the indicator light.

[0122] As can be seen, in this optional embodiment, by setting an indicator light module, users can intuitively understand the network status of the device without having to perform complex operations or view screen information, which helps to improve the user experience and ease of use of the overall circuit. In addition, the indicator light module can also serve as a means of troubleshooting, improving the speed of detecting faults in the circuit.

[0123] In another alternative embodiment, such as Figure 2As shown, the network connection sub-circuit 10 includes a network connection module 101 and a fourth power supply module 102, wherein:

[0124] The first end of the network connection module 101 is used to access network signals; the second end of the network connection module 101 is electrically connected to the first end of the first network conversion module 201; the third end of the network connection module 101 is electrically connected to the first end of the fourth power module 102; the second end of the fourth power module 102 is used to access power supply.

[0125] The network connection module 101 is used to provide network access to the first network conversion module 201, the second network conversion module 301, the control module 402, and the USB device based on the accessed network signal.

[0126] The fourth power supply module 102 is used to perform input power filtering, voltage regulation and power supply operations on the network connection module 101.

[0127] For the specific structure of the network connectivity module in this optional embodiment, please refer to [link / reference]. Figure 13 , Figure 13 This is a schematic diagram of the structure of a network connection module disclosed in an embodiment of this utility model; as shown... Figure 13 As shown, Figure 13 J8 is the core component of the network connection module and can be used as a network input interface. The capacitors C791 / C792 are used to eliminate noise from different ground planes.

[0128] As can be seen, in this optional embodiment, the network connection module enables the entire circuit system to easily access external networks, realize data transmission and communication, and improve the integration and maintainability of the overall circuit by managing it through a unified network connection module.

[0129] In this optional embodiment, such as Figure 2 As shown, the network connection sub-circuit 10 also includes a second isolation module 103, wherein:

[0130] The first end of the second isolation module 103 is used to access network signals; the second end of the second isolation module 103 is electrically connected to the first end of the network connection module 101.

[0131] The second isolation module 103 is used to perform interference isolation for external network connections on the network connection module 101.

[0132] For the specific structure of the second isolation module in this optional embodiment, please refer to [link / reference]. Figure 14 , Figure 14 This is a schematic diagram of the structure of a second isolation module disclosed in an embodiment of this utility model; as shown... Figure 14 As shown, Figure 14X1 in the diagram is the network transformer, which corresponds to the core component of the second isolation module and is used to isolate external network connection interference. Meanwhile, R472 / R473 / R474 / R475 and C521 form a Bob Smith circuit, which is used to improve signal transmission quality and reduce interference.

[0133] As can be seen, in this optional embodiment, by introducing a second isolation module into the network connection sub-circuit, interference isolation from external network connections can be performed on the network connection module, effectively reducing the interference of noise, electromagnetic interference and other factors in the external network environment on the network connection module, thereby improving the stability and reliability of the network connection.

[0134] In yet another alternative embodiment, such as Figure 3 As shown, Figure 3 The multi-port network communication control circuit for USB-C switching in the circuit has two or more second network conversion sub-circuits. Therefore, in practice, the number of second network conversion sub-circuits that can be set in the multi-port network communication control circuit for USB-C switching can not only be a single one, but the number of second network conversion sub-circuits can also be flexibly increased or decreased according to the actual situation.

[0135] It is evident that implementation Figure 3 The described multi-port network communication control circuit for USB-C switching expands the number of interfaces for multi-port network communication control circuits for USB-C switching, further improving the applicability and practicality of the circuit.

[0136] The working principle of the multi-port network communication control circuit for USB-C switching in this embodiment of the invention is as follows:

[0137] In this embodiment of the invention, a network signal is accessed through a network connection subcircuit. After performing basic signal filtering on the network signal, it is connected to the circuit. After determining that the overall circuit is connected to the network signal, a control subcircuit determines the number of devices that need to access the network signal. When the number of devices exceeds one, the control subcircuit generates a mode switching command for the first network conversion subcircuit and controls the first network conversion module to switch to a multi-network interface output module according to the mode switching command, allowing the network signal to share the output signal bandwidth among multiple network interfaces. A network switching command is also generated for the second network conversion subcircuit, and the second network conversion module is controlled to switch to network output mode according to the network switching command, allowing the network signal to be converted from a network signal to a USB signal. Thus, the network signal, after passing through the first and second network conversion subcircuits, connects to multiple USB devices that need to be connected to the network. Finally, when it is determined that the USB device has successfully / normally connected to the network, an indicator light on the control subcircuit is constantly highlighted.

[0138] It should be noted that the above explanation of the principle is for a multi-port network communication control circuit for USB-C switching. For the principle of setting multiple second network conversion sub-circuits in the same multi-port network communication control circuit for USB-C switching, please refer to the above detailed explanation of the principle of a multi-port network communication control circuit for USB-C switching, which will not be repeated here.

[0139] Example 2

[0140] Please see Figure 15 , Figure 15 This is a schematic diagram of a communication switching device disclosed in an embodiment of the present invention. The communication switching device includes a main body and a multi-port network communication control circuit for USB-C switching, as described in Embodiment 1. The communication switching device includes, but is not limited to, a USB-C converter. It should be noted that for a detailed description of this communication switching device, please refer to the specific description in Embodiment 1; this embodiment will not repeat it.

[0141] It is evident that implementation Figure 15 The described communication switching device achieves dual dynamic adaptation of the physical layer and protocol layer by controlling the output mode of the first network conversion sub-circuit to switch between single and multiple network interfaces, and combining this with the network status switching of the second network conversion sub-circuit. This mechanism can adjust network resource allocation in real time according to device communication needs, enabling uplink multi-port network communication while improving the continuity and stability of network communication when switching between single and multiple network interfaces. Furthermore, it improves the efficiency of concurrent communication between multiple devices when switching to multiple network interfaces. In addition, the network connection sub-circuit can perform isolation filtering on received network signals, which helps reduce crosstalk in network signal transmission via the USB-C interface and improves the transmission quality of network signals.

[0142] The foregoing has provided a detailed description of a multi-port network communication control circuit and communication switching device for USB-C switching, as disclosed in the embodiments of this utility model. Specific embodiments have been used to illustrate the principles and implementation methods of this utility model. However, the above preferred embodiments are not intended to limit this utility model. The descriptions of the above embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. Furthermore, for those skilled in the art, based on the ideas of this utility model, changes may be made in the specific implementation methods and application scope without departing from the spirit and scope of this utility model. Therefore, the protection scope of this utility model is determined by the scope defined in the claims.

Claims

1. A multi-port network communication control circuit for USB-C switching, characterized in that, The circuit includes a network connection sub-circuit, a first network conversion sub-circuit, a second network conversion sub-circuit, and a control sub-circuit, wherein: The first terminal of the network connection sub-circuit is used to access network signals; the second terminal of the network connection sub-circuit is electrically connected to the first terminal of the first network conversion sub-circuit; the second terminal of the first network conversion sub-circuit is electrically connected to the first terminal of the second network conversion sub-circuit; the third terminal of the first network conversion sub-circuit is communicatively connected to the first terminal of the control sub-circuit; the second terminal of the second network conversion sub-circuit is communicatively connected to the second terminal of the control sub-circuit; the third terminal of the second network conversion sub-circuit is used to access the signal input terminal of a USB device. The network connection sub-circuit is used to perform signal isolation and filtering processing on the network signal after it is connected to the network signal, and to transmit the corresponding first signal to the first network conversion sub-circuit. The control sub-circuit is used to control the first network conversion sub-circuit to perform interface output mode switching and the second network conversion sub-circuit to perform network signal access state switching according to the user's device communication needs; the mode switching includes switching between single network interface output mode and multi-network interface output mode; the state switching includes switching between network output state and non-network output state.

2. The multi-port network communication control circuit for USB-C switching according to claim 1, characterized in that, The first network conversion sub-circuit includes a first network conversion module, a reset module, and a first power supply module, wherein: The second terminal of the network connection sub-circuit is electrically connected to the first terminal of the first network conversion module; the second terminal of the first network conversion module is electrically connected to the first terminal of the second network conversion sub-circuit; the third terminal of the first network conversion module is communicatively connected to the first terminal of the control sub-circuit. The fourth terminal of the first network conversion module is electrically connected to the first terminal of the reset module; the fifth terminal of the first network conversion module is electrically connected to the first terminal of the first power module; the second terminal of the first power module is electrically connected to the second terminal of the reset module; the input terminal of the first power module is used to connect to a power supply. The first network conversion module is used to receive a mode switching instruction transmitted by the control sub-circuit, and perform mode switching between single network interface output mode and multiple network interface output mode on the first network conversion module according to the mode switching instruction. The reset module is used to control the module operation state corresponding to the first network conversion module according to the signal state corresponding to the reset signal in the reset module; wherein, when the signal state is a pull-up state, the module operation state is a start-up state; when the signal state is a pull-down state, the module operation state is a sleep state. The first power module is used to supply power to the first network conversion module and the reset module.

3. The multi-port network communication control circuit for USB-C switching according to claim 2, characterized in that, The first network conversion sub-circuit further includes a first storage module and a first filtering module, wherein: The fifth terminal of the first network conversion module is electrically connected to the first terminal of the first storage module; the sixth terminal of the first network conversion module is electrically connected to the first terminal of the first filtering module; and the second terminal of the first filtering module is electrically connected to the second terminal of the first power module. The first storage module is used to store at least one of the following data corresponding to the first network conversion module: module configuration parameters, non-real-time data, firmware code, operating system image, and static resources. The first filtering module is used to perform power filtering on the power supply signal of the first power supply module.

4. The multi-port network communication control circuit for USB-C switching according to claim 2 or 3, characterized in that, The second network conversion sub-circuit includes a second network conversion module, a second storage module, and a second power supply module, wherein: The second terminal of the first network conversion module is electrically connected to the first terminal of the second network conversion module; the second terminal of the second network conversion module is communicatively connected to the second terminal of the control sub-circuit; the third terminal of the second network conversion module is used to connect to the signal input terminal of the USB device. The fourth terminal of the second network conversion module is electrically connected to the first terminal of the second storage module; the fifth terminal of the second network conversion module is electrically connected to the first terminal of the second power module; the second terminal of the second storage module is electrically connected to the second terminal of the second power module; the input terminal of the second power module is used to connect to a power supply. The second network conversion module is used to receive a network switching command transmitted by the control sub-circuit, and to perform a state switch between network output state and non-network output state for the second network conversion module according to the network switching command; The second network conversion module is further configured to convert the network signal transmitted via the first network conversion module into a USB signal adapted to the USB device; The second storage module is used to store the determination program and temporary calculation data corresponding to the second network conversion module; The second power module is used to supply power to the second network conversion module and the second storage module.

5. The multi-port network communication control circuit for USB-C switching according to claim 4, characterized in that, The second network conversion sub-circuit further includes a first isolation module and a second filtering module, wherein: The sixth terminal of the second network conversion module is electrically connected to the first terminal of the first isolation module; the first terminal of the second filter module is electrically connected to the first terminal of the second power module; the second terminal of the second filter module is electrically connected to the third terminal of the second power module. The first isolation module is used to perform signal isolation for the interactive signals input to the second network conversion module; The second filtering module is used to perform filtering and voltage regulation on the input power supply connected to the second network conversion module.

6. The multi-port network communication control circuit for USB-C switching according to claim 4, characterized in that, The control sub-circuit includes a key switching module, a control module, and a third power supply module, wherein: The third terminal of the first network conversion module is communicatively connected to the first terminal of the control module; the second terminal of the second network conversion module is communicatively connected to the second terminal of the control sub-circuit. The third terminal of the control sub-circuit is electrically connected to the first terminal of the button switching module; the fourth terminal of the control sub-circuit is electrically connected to the first terminal of the third power supply module. The control module is used to generate the mode switching command for the first network conversion module and / or the network switching command for the second network conversion module according to the user's device communication requirements. The button switching module is used to switch the start and stop of the control module; The third power supply module is used to supply power to the button switching module and the control module.

7. The multi-port network communication control circuit for USB-C switching according to claim 6, characterized in that, The control subcircuit also includes an indicator light module, wherein: The fourth terminal of the control sub-circuit is electrically connected to the first terminal of the indicator module; The indicator light module is used to control the display of the indicator light according to the network status of the second network conversion module and the network status of the USB device; wherein, when the second network conversion module is in the network output state and the USB device is in the network access state, the indicator light module switches to a lit or flashing display state.

8. The multi-port network communication control circuit for USB-C switching according to claim 6 or 7, characterized in that, The network connection sub-circuit includes a network connection module and a fourth power supply module, wherein: The first end of the network connection module is used to access network signals; the second end of the network connection module is electrically connected to the first end of the first network conversion module; the third end of the network connection module is electrically connected to the first end of the fourth power module; the second end of the fourth power module is used to access a power supply. The network connection module is used to provide network access to the first network conversion module, the second network conversion module, the control module, and the USB device based on the accessed network signal. The fourth power module is used to perform input power filtering, voltage regulation and power supply operations on the network connection module.

9. The multi-port network communication control circuit for USB-C switching according to claim 8, characterized in that, The network connection sub-circuit further includes a second isolation module, wherein: The first end of the second isolation module is used to access the network signal; the second end of the second isolation module is electrically connected to the first end of the network connection module. The second isolation module is used to isolate the network connection module from interference from external network connections.

10. A communication switching device, characterized in that, The communication switching device includes a device body, and the communication switching device further includes a multi-port network communication control circuit for USB-C switching as described in any one of claims 1-9.

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