A HUB board and interface conversion system for LED display system

Abstract

The embodiment of the utility model provides a HUB board and an interface conversion system for an LED display system, and relates to the field of display technology. The application improves space utilization by integrating a main receiving card into the HUB board. The HUB board for the LED display system includes: a board body and a main receiving card circuit; the board body includes a switching circuit, a network port and a plurality of light board connection sockets, wherein the first data output end of the switching circuit is electrically connected to the plurality of light board connection sockets respectively; the main receiving card circuit is formed on the board body, including a second data input end and a second data output end, wherein the second data input end is connected to the network port, and the second data output end is connected to the first data input end of the switching circuit; the board body also includes a connection socket for connecting a standby receiving card, the third data input end of the connection socket is connected to the network port, the third data output end of the connection socket is connected to the first data input end of the switching circuit, and the connection socket is connected to the main receiving card circuit in communication.

Description

Technical Field

[0001] The utility model relates to the technical field of display, in particular to a HUB board and an interface conversion system for an LED display system. Background Art

[0002] With the development of LED display technology, its application areas are becoming more and more extensive. At the same time, the development trend of the LED display industry is simpler structure and more convenient installation and maintenance.

[0003] At present, the structure of the HUB board in the display screen market is relatively complex. The HUB board is provided with a main card slot and a spare card slot. When in use, the main card or the spare card needs to be installed. The working method is that the external signal of a cabinet enters through the network port and is then given to the main card or the spare card. The main card or the spare card is processed and given to each light board respectively. In the case of an abnormality of the main card, it is necessary to switch to the spare card, and the disassembly and assembly are troublesome. At the same time, the main card slot and the spare card slot will occupy a lot of space in the horizontal and vertical directions, which makes the space utilization rate of the HUB board low, which is not conducive to further promotion. Utility Model Content

[0004] The embodiment of the utility model provides a HUB board for an LED display system and an interface conversion system. The HUB board for the LED display system improves space utilization by integrating a main receiving card into the HUB board.

[0005] In the first aspect, a HUB board for an LED display system includes: a board body and a main receiving card circuit; the board body includes a switching circuit, a network port and multiple light board connection sockets, wherein the first data output end of the switching circuit is electrically connected to the multiple light board connection sockets respectively; the main receiving card circuit is formed on the board body, including a second data input end and a second data output end, wherein the second data input end is connected to the network port, and the second data output end is connected to the first data input end of the switching circuit.

[0006] The board body also includes a connection socket for connecting a spare receiving card, a third data input end of the connection socket is connected to the network port, a third data output end of the connection socket is connected to the first data input end of the switching circuit, and the connection socket is connected to the main receiving card circuit for communication.

[0007] Based on the above scheme, some embodiments of the present application provide a HUB board for an LED display system, on which the main receiving card circuit is integrated into the board body, so that the main receiving card and the HUB board are integrated into one, and there is no need to install the main receiving card on the HUB board. The main receiving card and the card slot corresponding to the main receiving card can be cancelled, making the HUB board structure simpler and more integrated, and the HUB board only needs to set a connection seat for the standby receiving card to connect on the board body, and the standby receiving card can be installed or removed according to the usage, without disassembling the main receiving card, making the HUB board more convenient to disassemble. At the same time, since there is no need to set a card slot for the main receiving card in the HUB board, the main receiving card circuit is integrated with part of the circuit on the board body, and the space occupied by the main receiving card circuit is smaller than that of the card slot of the main receiving card, which can improve the space utilization rate of the HUB board; and the cancellation of the card slot of the main receiving card can also further reduce costs.

[0008] In some embodiments, the HUB board also includes: a judgment circuit formed on the board body, a first control end of the judgment circuit electrically connected to the control end of the main receiving card circuit, and a second control end of the judgment circuit electrically connected to the control end of the connecting socket.

[0009] The main receiving card circuit is configured to send a first signal to the judgment circuit when working abnormally, and the main receiving card circuit stops working; the judgment circuit is configured to send a second signal to the connecting socket when receiving the first signal, and the connecting socket sends a start signal to the standby receiving card; the standby receiving card is configured to start working after receiving the start signal.

[0010] In some embodiments, the connection socket includes a first connection socket and a second connection socket, and the first connection socket and the second connection socket are located on both sides of the main receiving card circuit; the third data input terminal of the first connection socket is connected to the network port, and the third data output terminal of the first connection socket is connected to the first data input terminal of the adapter circuit; the third data input terminal of the second connection socket is connected to the network port, and the third data output terminal of the second connection socket is connected to the first data input terminal of the adapter circuit.

[0011] In some embodiments, the network port includes: a first network port and a second network port; the first network port is electrically connected to the second data input terminal of the main receiving card circuit; the second network port is electrically connected to the third data input terminal of the connecting socket.

[0012] In some embodiments, the plurality of light board connection sockets are respectively arranged on both sides of the main receiving card circuit.

[0013] In some embodiments, the HUB board also includes: an external main power supply, which is connected to the board body and is arranged on a side of the board body away from the connecting socket; the external main power supply is configured to convert the AC power into a first voltage and supply power to the main receiving card circuit, the connecting socket and the adapter circuit; wherein the first voltage is the operating voltage of the HUB board.

[0014] In some embodiments, the board body also includes: a power supply interface, which is arranged on the board body; when the HUB board is not configured with the external main power supply, the power supply interface is configured to connect to a first power supply module; the first power supply module is configured to convert the AC power into a first voltage and power the main receiving card circuit, the connecting socket and the adapter circuit.

[0015] In some embodiments, the board body also includes: a backup power supply interface, which is arranged on the board body; when the power supply interface is abnormal, the backup power supply interface is configured to connect to a second power supply module; the second power supply module is configured to convert the AC power into a first voltage and power the main receiving card circuit, the connecting socket and the adapter circuit.

[0016] In some embodiments, the board body is also provided with: a power detection port and a button port; the power detection port is arranged on the board body, and is used to connect an external device and detect the size of the power supply in the external device; the button port is arranged on the board body, and the output end of the button port is electrically connected to the fourth data input end of the main receiving card circuit, and is also electrically connected to the fifth data input end of the connecting socket, and is used to connect an external control module to change the color of the light board.

[0017] In a second aspect, the present application provides an interface conversion system, which includes: the above-mentioned HUB board for the LED display system and a spare receiving card; the spare receiving card is connected to the connecting socket.

[0018] The beneficial effects of the interface conversion system are the same as those of the HUB board used in the LED display system, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0020] Figure 1 A schematic diagram of an existing HUB board provided in an embodiment of the present application;

[0021] Figure 2A circuit block diagram of an existing HUB board provided in an embodiment of the present application;

[0022] Figure 3 A structural block diagram of a HUB board provided in an embodiment of the present application;

[0023] Figure 4 A structural block diagram of another HUB board provided in an embodiment of the present application;

[0024] Figure 5 A circuit diagram of a HUB board provided in an embodiment of the present application;

[0025] Figure 6 A structural block diagram of another HUB board provided in an embodiment of the present application;

[0026] Figure 7 A schematic diagram of a HUB board provided in an embodiment of the present application;

[0027] Figure 8 A schematic diagram of another HUB board provided in an embodiment of the present application;

[0028] Fig. 9 A structural block diagram of an interface conversion system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, when describing the pipeline, the "connected" and "connection" used in the present utility model have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.

[0033] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0034] As described in the background technology, with the development of LED display technology, its application fields are becoming more and more extensive. At the same time, the development trend of the LED display industry is simpler structure and more convenient installation and maintenance.

[0035] Reference Figure 1 At present, the structure of the HUB board 110 in the display screen market is relatively complex. The HUB board 110 is provided with a main card slot 11 and a spare card slot 21. When in use, the main card 1 or the spare card 2 needs to be installed. Its working method is that the external signal of a cabinet enters through the network port and is then given to the main card 1 or the spare card 2. The main card 1 or the spare card 2 is processed and given to each light board. In the case of an abnormality of the main card 1, it is necessary to switch to the spare card 2. The disassembly and assembly are relatively troublesome. At the same time, the main card slot 11 and the spare card slot 21 will occupy a lot of space in the horizontal and vertical directions, making the HUB board space utilization rate low, which is not conducive to further promotion.

[0036] like Figure 2 As shown, Figure 2 This is a circuit diagram of setting the main receiving card and the standby receiving card on the HUB board. The HUB board includes: a main receiving card and a standby receiving card. The data signal is transmitted to the main receiving card or the standby receiving card via the network port. Then the main receiving card or the standby receiving card converts the data signal into an RGB signal or a control signal and transmits it to the switching circuit. The switching circuit then transmits the signal to each light board and functional component. From the figure, it can be seen that the main receiving card and the standby receiving card are placed side by side, which will take up a lot of space on the HUB board, making the space utilization rate of the HUB board low.

[0037] It should be noted that the HUB board refers to a hub. A hub is a network device that is mainly used to connect multiple Ethernet twisted pair cables or optical fiber collections to the same physical medium to achieve connections between multiple computers or network devices. It works at the physical layer of the OSI model. Its main function is to regenerate, shape and amplify the received signal to expand the transmission distance of the network and concentrate all nodes on the node centered on it. The hub itself does not have intelligent memory and learning capabilities. When sending data, it uses broadcasting instead of directly sending data to the destination node. In addition, hubs can be divided into passive HUBs, active HUBs, and intelligent HUBs. The application scenarios of hubs include connecting multiple computers or network devices in a network using a star topology. Its existence ensures that when a line in the network fails, it will not affect the work of other lines.

[0038] Based on this, the embodiment of the present application provides a HUB board for an LED display system. Figure 3 As shown, the HUB board 100 for the LED display system includes: a board body 10 and a main receiving card circuit 50.

[0039] The board body 10 includes: a switching circuit 3, a network port 4 and a plurality of light board connection sockets 5.

[0040] The switching circuit 3 includes a first data input terminal 311 and a first data output terminal 312 .

[0041] The first data output terminal 312 of the switching circuit 3 is electrically connected to a plurality of lamp board connection sockets 5 respectively.

[0042] The main receiving card circuit 50 is formed on the board body 10 , and the main receiving card circuit 50 includes: a second data input terminal 501 and a second data output terminal 502 .

[0043] The second data input terminal 501 of the main receiving card circuit 50 is connected to the network port 4 , and the second data output terminal 502 of the main receiving card circuit 50 is connected to the first data input terminal 311 of the switching circuit 3 .

[0044] The board body 10 further includes a connection socket 6 for connecting the standby receiving card. The connection socket 6 includes a third data input terminal 601 and a third data output terminal 602 .

[0045] The third data input terminal 601 of the connection socket 6 is connected to the network port 4 , the third data output terminal 602 of the connection socket 6 is connected to the first data input terminal 311 of the switching circuit 3 , and the connection socket 6 is communicatively connected to the main receiving card circuit 50 .

[0046] The main function of the receiving card is to receive the image data from the sending card and convert the data into signals that the LED screen can recognize, thereby driving the LED screen to display the corresponding image. This process is similar to a translator, helping the computer or other devices to convert the information they want to display into a language that the LED screen can understand. Specifically, the receiving card converts the digital signal output by the computer into an analog signal that matches the display screen, and then converts the digital signal into the electrical signal required by the display screen to achieve the normal operation of the display screen. In addition, the receiving card is also responsible for receiving data signals and controlling the brightness and color of the LED lamp beads, as well as completing the conversion of video, pictures, text and other information into the control signals required by the display screen to achieve the display effect.

[0047] It should be noted that the main receiving card circuit can be understood as taking out the circuit in the main receiving card, combining it with part of the circuit on the HUB board 100, and integrating it into the board body 10 of the HUB board 100. The above-mentioned sending card can be set in a box, and then transmit the data signal to the receiving card, that is, the main receiving card circuit, through the network port.

[0048] The main function of the network port is to realize data transmission between the computer and the network. In the present application, the network port is configured to transmit data signals to the main receiving card circuit or the connection socket 6 for connecting the spare receiving card.

[0049] In some embodiments, the network port is an RJ45 network port. The RJ45 network port, also known as the RJ45 Modular Plug, is mainly used for the termination of data cables to achieve the connection and change between devices and patch panel modules. This connector is required to have good conductivity to ensure the reliability of data transmission. The RJ45 network port can support the transmission of electrical signals and data signals, including Ethernet, telephone and television signals, etc., and is usually used to connect network devices such as computers, switches, routers, etc.

[0050] In some embodiments, the switching circuit is a 74HC245 circuit. The 74HC245 circuit can realize parallel transmission of bidirectional data and is used to connect two different bus systems. It can isolate the level difference and noise interference between different buses to ensure reliable data transmission. At the same time, the 74HC245 circuit is used to increase the drive in large-screen displays and other consumer electronic products. It can be understood that the main receiving card circuit 50 transmits the video signal to each functional component on the HUB board 100 through the switching circuit 3.

[0051] In some embodiments, the connector 6 is a 120-pin high-density connector. High-density connectors can support high-speed data transmission rates. For example, Mini-SAS HD connectors can provide aggregate data transmission rates of up to 48 Gbps, and some versions can even reach 192 Gbps. This high-speed data transmission capability is essential for data centers, high-performance computing environments, and high-speed network communications. High-density connectors can also optimize wiring space, enhance power and signal transmission capabilities, improve storage system connection efficiency, and increase the interface density of network and communication equipment.

[0052] In some embodiments, a plurality of light board connectors 5 are respectively disposed on both sides of the main receiving card circuit 50 .

[0053] That is to say, the data signal is transmitted to the second data input terminal 501 of the main receiving card circuit 50 via the network port, the main receiving card circuit 50 receives the data signal and converts the data signal into a video signal, and transmits the video signal to the adapter circuit 3 through the second data output terminal 502 of the main receiving card circuit, and the adapter circuit 3 transmits the signal to multiple lamp board connectors 5 through the first data input terminal 311, thereby controlling the operation of the lamp boards connected to the lamp board connectors 5.

[0054] In some embodiments, the layout of the HUB board 100 may be a 6-layer board.

[0055] Based on the above scheme, some embodiments of the present application provide a HUB board for an LED display system, on which the main receiving card circuit is integrated into the board body, so that the main receiving card and the HUB board are integrated into one, and there is no need to install the main receiving card on the HUB board. The main receiving card and the card slot corresponding to the main receiving card can be cancelled, making the HUB board structure simpler and more integrated, and the HUB board only needs to set a connection seat for the standby receiving card to connect on the board body, and the standby receiving card can be installed or removed according to the usage, without disassembling the main receiving card, making the HUB board more convenient to disassemble. At the same time, since there is no need to set a card slot for the main receiving card in the HUB board, the main receiving card circuit is integrated with part of the circuit on the board body, and the space occupied by the main receiving card circuit is smaller than that of the card slot of the main receiving card, which can improve the space utilization rate of the HUB board; and the cancellation of the card slot of the main receiving card can also further reduce costs.

[0056] like Figure 4 As shown, the HUB board 100 further includes: a judgment circuit 40 ; the judgment circuit 40 is formed on the board body 10 .

[0057] The determination circuit 40 includes a first control terminal 401 and a second control terminal 402 .

[0058] The main receiving card circuit 50 further includes: a control terminal 503 .

[0059] The connection socket 6 also includes: a control terminal 603 .

[0060] The first control terminal 401 of the judgment circuit 40 is electrically connected to the control terminal 503 of the main receiving card circuit 50 , and the second control terminal 402 of the judgment circuit 40 is electrically connected to the control terminal 603 of the connecting socket 6 .

[0061] The main receiving card circuit 50 is configured to send a first signal to the judgment circuit 40 when the operation is abnormal, and the main receiving card circuit 50 stops working.

[0062] The judgment circuit 40 is configured to send a second signal to the connection socket 6 when receiving the first signal, and the connection socket 6 sends a start signal to the standby receiving card 70; the standby receiving card 70 is configured to start working after receiving the start signal.

[0063] For example, when the user is using the HUB board, the main receiving card circuit 50 becomes abnormal and cannot continue to work; at this time, the main receiving card circuit 50 sends a first signal and transmits the first signal to the judgment circuit 40, and the main receiving card circuit 50 stops working after the transmission is completed.

[0064] The main receiving card circuit 50 stops working, and the standby receiving card 70 needs to start working.

[0065] If the standby receiving card 70 has been installed on the connecting socket 6, the judgment circuit 40 sends a second signal to the connecting socket 6 when receiving the first signal. When the connecting socket 6 receives the second signal, it sends a start signal to the standby receiving card installed on the connecting socket 6. The standby receiving card 70 starts working after receiving the start signal.

[0066] If the standby receiving card 70 has not been installed on the connecting socket 6, the user needs to first disassemble the HUB board and then install the standby receiving card 70 on the connecting socket 6; when the judgment circuit 40 receives the first signal, it sends a second signal to the connecting socket 6, and when the connecting socket 6 receives the second signal, it sends a start signal to the standby receiving card installed on the connecting socket 6, and the standby receiving card 70 starts working after receiving the start signal.

[0067] like Figure 5 As shown, the main receiving card circuit 50 includes: a network transformer 51, a first physical layer transceiver 52, a second physical layer transceiver 53, a logic circuit 54, a storage circuit 55, a serial interface flash memory circuit 56, a main control chip MCU, a voltage and temperature detection circuit 57, a power detection circuit 58 and a key circuit 59.

[0068] A first end of the network transformer 51 is connected to the first network port 41 , a second end of the network transformer 51 is connected to a first end of the first physical layer transceiver 52 , and a third end of the network transformer 51 is connected to a first end of the second physical layer transceiver 53 .

[0069] The first end of the logic circuit 54 is connected to the second end of the first physical layer transceiver 52, the second end of the logic circuit 54 is connected to the second end of the second physical layer transceiver 53, the third end of the logic circuit 54 is connected to the first data input terminal 311 of the transfer circuit 3, the fourth end of the logic circuit 54 is connected to the power detection circuit 58, the fifth end of the logic circuit 54 is connected to the key circuit 59, the sixth end of the logic circuit 54 is connected to the storage circuit 55, the seventh end of the logic circuit 54 is connected to the serial interface flash memory circuit 56, and the eighth end of the logic circuit 54 is connected to the first end of the main control chip MCU.

[0070] The second end of the main control chip MCU is connected to the switching circuit 3 , the third end of the main control chip MCU is connected to the voltage and temperature detection circuit, and the fourth end of the main control chip MCU is connected to the serial interface flash memory circuit 56 .

[0071] The GIGA PHY in the figure refers to a Gigabit Ethernet physical layer transceiver, which is a part used to connect the MAC layer and the physical medium in network communication. GIGA PHY1 refers to a first physical layer transceiver 52, and GIGA PHY2 refers to a second physical layer transceiver 53.

[0072] SPI Flash is a flash storage device that communicates via a serial peripheral interface (SPI). Its main features include fast read speed, low power consumption, easy integration, and relatively small storage capacity. SPI Flash is widely used in embedded systems, IoT devices, communication equipment, consumer electronics, and computer peripherals, and is often used to store boot code, firmware updates, configuration data, and logs.

[0073] In some embodiments, a signal socket is further disposed on the board 10 , and the signal socket is electrically connected to the first data input terminal 311 of the switching circuit 3 .

[0074] The signal socket can play a role of switching, for example, allowing engineers to test high-speed circuit signal chips; it can also connect and fix integrated circuits; it can also be used to connect and protect network signals to ensure the stability and security of network communications.

[0075] like Figure 6 As shown, the connection seat 6 includes: a first connection seat 61 and a second connection seat 62 .

[0076] The first connection socket 61 includes a third data input terminal 611 and a third data output terminal 612 .

[0077] The second connection socket 62 includes a third data input terminal 621 and a third data output terminal 622 .

[0078] The first connection socket 61 and the second connection socket 62 are located on both sides of the main receiving card circuit 50; the third data input terminal 611 of the first connection socket 61 is connected to the network port 4, and the third data output terminal 612 of the first connection socket 61 is connected to the first data input terminal 311 of the switching circuit 3; the third data input terminal 621 of the second connection socket 62 is connected to the network port 4, and the third data output terminal 622 of the second connection socket 62 is connected to the first data input terminal 311 of the switching circuit 3.

[0079] The first connection seat 61 and the second connection seat 62 are located on both sides of the main receiving card circuit 50, and the standby receiving card is arranged on the first connection seat 61 and the second connection seat 62. In this way, the main receiving card circuit and the standby receiving card are in different vertical directions at the same position, which can further improve space utilization.

[0080] like Figure 6 As shown, the network port 4 includes: a first network port 41 and a second network port 42 ; the first network port 41 is electrically connected to the second data input terminal 501 of the main receiving card circuit 50 ; the second network port 42 is electrically connected to the third data input terminal 601 of the connecting socket 6 .

[0081] That is, the second network port 42 is electrically connected to the third data input terminal 611 of the first connection socket 61 , and is also electrically connected to the third data input terminal 621 of the second connection socket 62 .

[0082] The first network port 41 is connected to the main receiving card circuit 50, and the second network port 42 is connected to the standby receiving card 70. For example, the data signal is transmitted to the main receiving card circuit and the standby receiving card 70 via the first network port 41 and the second network port 42.

[0083] At this time, if the main receiving card circuit is in working state, the first network port 41 transmits the data signal to the main receiving card circuit 50, and the second network port 42 does not act, and cannot transmit the data signal to the standby receiving card 70. If the standby receiving card 70 is in working state, the second network port 42 transmits the data signal to the standby receiving card 70, and the first network port 41 does not act, and cannot transmit the data signal to the main receiving card circuit 50.

[0084] like Figure 7 and Figure 8 As shown, the HUB board 100 further includes: an external main power supply 80 , which is connected to the board body 10 and is disposed on a side of the board body 10 away from the connection socket 6 .

[0085] The external main power supply 80 is configured to convert the mains power into a first voltage and supply power to the main receiving card circuit 50, the connection socket 6 and the switching circuit 3; wherein the first voltage is the working voltage of the HUB board.

[0086] It should be noted that the external main power supply 80 includes but is not limited to powering the main receiving card circuit 50 , the connection socket 6 and the switching circuit 3 .

[0087] For example, the AC power is 220V and the working voltage of the HUB board is 5V. At this time, one end of the external main power supply 80 is connected to the AC power, and the external main power supply converts the 220V AC power into a working voltage of 5V; the other end of the external main power supply 80 is connected to the circuit on the HUB board to power it.

[0088] like Figure 7 and Figure 8 As shown, the board body 10 further includes: a power supply interface 7 ; the power supply interface 7 is arranged on the board body 10 .

[0089] When the HUB board 100 is not configured with an external main power supply 80, the power supply interface 7 is configured to connect to the first power supply module A; the first power supply module A is configured to convert the AC power into a first voltage and power the main receiving card circuit 50, the connecting socket 6 and the adapter circuit 3.

[0090] It should be noted that the first power supply module A includes but is not limited to supplying power to the main receiving card circuit 50 , the connection socket 6 and the switching circuit 3 .

[0091] For example, the AC power is 220V and the working voltage of the HUB board is 5V. If the HUB board is not configured with an external main power supply 80, the user needs to install a first power module A on the power supply interface; one end of the first power module A is connected to the AC power, and the first power module A converts the 220V AC power into a working voltage of 5V; the other end of the first power module A is connected to the circuit on the HUB board to power it.

[0092] In some embodiments, Figure 7 and Figure 8 As shown, the board body 10 further includes: a backup power supply interface 8, and the backup power supply interface 8 is arranged on the board body.

[0093] When the power supply interface 7 is abnormal, the backup power supply interface 8 is configured to connect to the second power supply module B; the second power supply module B is configured to convert the mains power into a first voltage and supply power to the main receiving card circuit 50, the connecting socket 6 and the switching circuit 3.

[0094] It should be noted that the first power supply module A includes but is not limited to supplying power to the main receiving card circuit 50 , the connection socket 6 and the switching circuit 3 .

[0095] For example, the AC power is 220V and the working voltage of the HUB board is 5V. If the HUB board is not configured with an external main power supply 80, the user needs to install a first power module A on the power supply interface; one end of the first power module A is connected to the AC power, and the first power module A converts the 220V AC power into a working voltage of 5V; the other end of the first power module A is connected to the circuit on the HUB board to power it.

[0096] like Figure 7 and Figure 8 As shown, the board body 10 is also provided with: a power detection port 13 and a button port 14 .

[0097] The main receiving card circuit 50 further includes: a fourth data input terminal 504 .

[0098] The connection socket 6 also includes: a fourth data input terminal 604 .

[0099] The power detection port 13 is disposed on the board body 10 and is used to connect to an external device and detect the size of the power in the external device.

[0100] The button port 14 is arranged on the board body 10, and the output end of the button port 14 is electrically connected to the fourth data input end 504 of the main receiving card circuit 50, and is also electrically connected to the fourth data input end 604 of the connecting socket 6, for connecting an external control module to change the color of the light board.

[0101] For example, a user may connect an external controller, and the controller is connected to the key port 14 , and the color of the light panel may be changed by controlling the controller.

[0102] It should be noted that the locations of the above interfaces and functional components are not limited. Figure 7 and Figure 8 This is just one example of an embodiment.

[0103] Some embodiments of the present application also provide an interface conversion system 200. Fig. 9 As shown, the interface conversion system 200 includes: the above-mentioned HUB board 100 for the LED display system and a standby receiving card 70; the standby receiving card 70 is connected to the connection socket 6.

[0104] When purchasing a HUB board, the user can only purchase the above-mentioned HUB board, that is, only including the main receiving card circuit, so that the user's cost can be saved; if the user does not care about the cost, the interface conversion system 200 can be directly purchased. The interface conversion system will come with a spare receiving card 70, which is convenient for the user to replace when the HUB board is abnormal.

[0105] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A HUB board for an LED display system, characterized in that: include: The board body comprises a switching circuit, a network port and a plurality of light board connection sockets, wherein the first data output end of the switching circuit is electrically connected to the plurality of light board connection sockets respectively; A main receiving card circuit is formed on the board, comprising a second data input terminal and a second data output terminal, wherein the second data input terminal is connected to the network port, and the second data output terminal is connected to the first data input terminal of the switching circuit; The board body also includes a connection socket for connecting a spare receiving card, a third data input end of the connection socket is connected to the network port, a third data output end of the connection socket is connected to the first data input end of the switching circuit, and the connection socket is connected to the main receiving card circuit for communication.

2. The HUB board for LED display system according to claim 1, characterized in that: The HUB board also includes: A judgment circuit is formed on the board, wherein a first control end of the judgment circuit is electrically connected to a control end of the main receiving card circuit, and a second control end of the judgment circuit is electrically connected to a control end of the connecting socket; The main receiving card circuit is configured to send a first signal to the judgment circuit when working abnormally, and the main receiving card circuit stops working; The judgment circuit is configured to send a second signal to the connection socket when receiving the first signal, and the connection socket sends a start signal to the standby receiving card; The standby receiving card is configured to start working after receiving a start signal.

3. The HUB board for LED display system according to claim 1, characterized in that: The connection base includes a first connection base and a second connection base, and the first connection base and the second connection base are located on both sides of the main receiving card circuit; The third data input terminal of the first connection socket is connected to the network port, and the third data output terminal of the first connection socket is connected to the first data input terminal of the switching circuit; The third data input end of the second connection socket is connected to the network port, and the third data output end of the second connection socket is connected to the first data input end of the switching circuit.

4. The HUB board for LED display system according to claim 1, characterized in that: The network port includes: a first network port and a second network port; The first network port is electrically connected to the second data input terminal of the main receiving card circuit; the second network port is electrically connected to the third data input terminal of the connecting socket.

5. The HUB board for LED display system according to claim 1, characterized in that: The plurality of lamp board connection sockets are respectively arranged on both sides of the main receiving card circuit.

6. The HUB board for LED display system according to claim 1, characterized in that: The HUB board further comprises: an external main power supply, which is connected to the board body and is arranged on a side of the board body away from the connection seat; The external main power supply is configured to convert the mains power into a first voltage and supply power to the main receiving card circuit, the connecting socket and the switching circuit; The first voltage is the working voltage of the HUB board.

7. The HUB board for LED display system according to claim 6, characterized in that: The board body also includes: a power supply interface, which is arranged on the board body; When the HUB board is not configured with the external main power supply, the power supply interface is configured to connect to the first power supply module; The first power supply module is configured to convert the mains power into a first voltage and to supply power to the main receiving card circuit, the connecting socket and the switching circuit.

8. The HUB board for LED display system according to claim 7, characterized in that: The board body also includes: a backup power supply interface, which is arranged on the board body; When the power supply interface is abnormal, the backup power interface is configured to connect to a second power module; The second power supply module is configured to convert the mains power into a first voltage and supply power to the main receiving card circuit, the connecting socket and the switching circuit.

9. The HUB board for LED display system according to claim 1, characterized in that: The plate body is also provided with: A power detection port, which is arranged on the board and is used to connect an external device and detect the size of the power supply in the external device; A key port, wherein the key port is arranged on the board body, and an output end of the key port is electrically connected to the fourth data input end of the main receiving card circuit and is also electrically connected to the fifth data input end of the connecting socket, and is used to connect an external control module to change the color of the light board.

10. An interface conversion system, characterized in that: include: A HUB board for an LED display system as claimed in any one of claims 1 to 9; A standby receiving card; the standby receiving card is connected to the connecting socket.

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