CN215577630U

CN215577630U - Multifunctional card sending system assembled in modular combination

Info

Publication number: CN215577630U
Application number: CN202122079565.1U
Authority: CN
Inventors: 曾建军
Original assignee: SHENZHEN VD WALL VIDEO TECHNOLOGY CORP
Current assignee: SHENZHEN VD WALL VIDEO TECHNOLOGY CORP
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-18
Anticipated expiration: 2031-08-31

Abstract

The utility model provides a multi-functional card system that sends of modularization combination assembly, relates to the partial technical field of sending among the image processing system, provides a small in size, integrated level height, can be in order to realize multiple functions's card system that sends on different kinds of motherboards with the mode plug-in of modularization combination assembly, and technical scheme includes: the mother board is an LED transmitting card mother board or a video processor mother board, an onboard signal interface and an identification code are arranged on the mother board, and an ID identification circuit and an execution program are arranged on the mini transmitting card module. The utility model has the beneficial effects that: the mini transmitting card module can be used in a mode of modular combination assembly with a mother board as a highly integrated micro functional module which can be quickly plugged and pulled, the type of the mother board is automatically identified through an ID identification circuit after the mini transmitting card module is plugged, and a corresponding execution program is automatically selected to complete module configuration.

Description

Multifunctional card sending system assembled in modular combination

Technical Field

The utility model relates to a transmitting function part in an image processing system used by an LED display screen, in particular to a transmitting card system which has small volume and high integration level and can be plugged onto different motherboards in a modular assembly mode to realize multiple functions.

Background

The LED video processor and the control system form an integration trend, the traditional image content processing and control transmission systems are respectively in the upper and lower links, along with the development of the industry, the complexity of the system and the maturation of the technology, the market needs to integrate two sets of systems which are originally in the upper and lower links, namely the LED video processor and the control system, and how to combine the LED sending card with the LED video processor better becomes a difficult problem in front of the industry research personnel. In an image processing system of an LED display screen, the LED display screen is generally divided into three blocks, namely an LED sending card, an LED receiving card and control software, according to functions.

Most of the existing LED transmitting cards are used as independent products or are matched with an LED video processor. Generally, an LED sending card is separately connected with an upper computer to transmit video signals to an LED receiving card of an LED display screen, so that videos or pictures can be played on the LED display screen in a simpler mode. However, in some scenes with higher or special requirements for video playing effect, especially when the size of the LED display screen is large, the above playing conditions cannot be satisfied by using the LED sending card singly to process the video signal sent by the upper computer, so that the LED sending card and the LED video processor need to be used in cooperation, and in order to facilitate storage and connection, a containing cavity for containing the LED sending card is arranged inside the casing of some LED video processors. The LED sending card is large in size, too many on-board devices and signal interfaces exist, the LED sending card inevitably occupies a large space in an LED video processor, cables of different specifications and corresponding on-board devices and signal interfaces are required to be connected between the LED sending card and a mainboard of the LED video processor through multiple types and different specifications to achieve electric power and data communication, the internal wiring of the LED video processor is complex and disordered, the assembly is inconvenient, the power consumption is too high, the heat productivity is large, and the service life of the LED video processor is influenced.

Therefore, there is a need for an improvement in the transmission function portion of the image processing system used in the existing LED display screen to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

In summary, the present invention is directed to provide a transmitting card system, which has a small size and a high integration level, and can be plugged into an LED transmitting card motherboard or a video processor motherboard in a modular assembly manner to achieve multiple functions, so as to meet different requirements of different scenes on the playing effect of an LED display screen.

In order to solve the technical defects provided by the utility model, the technical scheme is as follows:

a modular multi-function card-issuing system, comprising:

the mother board is of the type of an LED (light emitting diode) sending card mother board or a video processor mother board, and is provided with an onboard signal interface for carrying out data and power transmission with an upper computer and an identification code corresponding to the type of the mother board;

the mini sending card module is detachably assembled on the motherboard through the connecting seat, supplies power through the connecting seat and performs data transmission with a device on the motherboard; the mini transmitting card module is provided with an ID identification circuit for identifying the identification code to confirm the type of a motherboard connected with the mini transmitting card module, and an execution program matched with the LED transmitting card motherboard and the video processor motherboard; and the mini transmitting card module is assembled on a corresponding motherboard and then autonomously selects and runs a corresponding execution program to realize the functions of the LED transmitting card or the video processor.

Specifically, the mini sending card module comprises a video signal transmission module, a control module and a network output module, wherein the video signal transmission module, the control module and the network output module are connected through the connecting seat and the onboard signal interface on the mother board, the control module is connected between the video signal transmission module and the network output module, and the network output module is connected with a receiving card of the LED display screen through a network cable connected to the onboard signal interface.

Specifically, the video signal transmission module comprises two RGB444 signal channels, is connected with the upper computer through the onboard signal interface to receive and decode video signals, and transmits the decoded video signals to the control module for processing.

Specifically, the control module is connected to the upper computer through the onboard signal interface so as to complete the configuration and the test of the mini transmitting card module under the drive of control software of the upper computer.

Furthermore, the control module comprises an MCU controller and an FPGA connected with the MCU controller, the MCU controller controls the mode of processing the video signal by the FPGA and adjusts the output state of the FPGA, and the FPGA encodes and processes the video signal input by the video signal transmission module according to the instruction of the MCU controller and then packs the video signal and sends the video signal to the network output module.

Furthermore, the network output module comprises two gigabit PHY chips and two network transformers, the onboard signal interface comprises two gigabit PHY network ports, and each network transformer is connected between one gigabit PHY chip and one gigabit PHY network port through the connecting seat.

Specifically, the motherboard is provided with an HDMI receiving chip and/or a DVI receiving chip which are connected with the onboard signal interface and used for receiving a video signal sent by an upper computer and converting the video signal into a TTL image signal which can be read and processed by the mini transmitting card module.

Furthermore, the onboard signal interface comprises a DVI interface, an HDMI interface and an RJ45 interface.

Further, mini sending card module on be equipped with a connection pilot lamp and a status indicator lamp, mini sending card module and LED display screen receive the card and shake hands under the connection success state connection pilot lamp and light, mini sending card module fault state status indicator lamp often light, the status indicator lamp is slowly dodged under the normal operating condition of mini sending card module, the status indicator lamp is fast dodged under the mini sending card module carries out data transmission state.

Furthermore, the video processor motherboard is arranged in the LED video processor and is connected with an upper computer through the onboard signal interface to receive video signals and convert the video signals into TTL image signals which can be read and processed by the mini transmitting card module; the mini sending card module is connected with the output end of the video processor motherboard through the connecting seat to receive the TTL image signal, and zooming, switching and intercepting operations are carried out on the TTL image signal according to the instruction requirement of the video processor motherboard so as to realize the function fusion of the LED video processor and the LED sending card.

The utility model has the beneficial effects that:

1. the mini transmitting card module is a highly integrated micro functional module, can be quickly plugged and pulled out through the connecting seat and is matched with a mother board in a modular assembly mode for use, and is small in size, free of occupying space, flexible in disassembly and assembly and convenient to use.

2. When the mini sending card module is actually used, the mini sending card module is arranged on the mother board of the LED sending card, so that the LED sending card which can be independently connected with an upper computer for use can be formed, and the function of the LED sending card is realized by connecting an onboard signal interface on the mother board with the upper computer. Compared with the prior art, the combined image processing system of the LED video processor and the LED transmitting card can be formed by installing the mini transmitting card module on the video processor motherboard, the mini transmitting card module and the video processor motherboard share an onboard signal interface on the mini transmitting card module to be connected with an upper computer, and are connected with the video processor motherboard through the connecting seat for data and power, and various cables with various types and multiple types are not needed to be used for connecting the mini transmitting card module and the video processor motherboard, so that the wiring in the LED video processor is simpler, the installation and the use are very convenient, the accommodating space does not need to be reserved for the LED transmitting card, the occupation of the internal space of the LED video processor is greatly reduced, and the overall size of the shell of the LED video processor can be reduced.

3. The mini sending card module does not comprise an onboard signal interface which is large in size and occupies large space, electric power and data signal communication between the mini sending card module and a mother board can be achieved only through the multifunctional connecting seat, corresponding functions are achieved by connecting the onboard signal interface arranged on the mother board and an upper computer, and the number of peripheral devices and the overall size of a product are reduced.

4. The structure of the existing LED transmitting card is improved, so that the LED transmitting card becomes a highly integrated mini transmitting card module to be assembled in different types of mother boards, the corresponding functions of the LED transmitting card and an LED video processor are realized, the updating of a system can be reduced, the better utilization of old resources is realized, and the mini transmitting card module can be used as a modular product to be provided for LED large-screen manufacturers for system integration.

5. The mini transmitting card module can be assembled in different types of motherboards, the ID identification circuit on the mini transmitting card module automatically identifies the identification code on the motherboard, thereby distinguishing the type of the motherboard product connected with the mini transmitting card module, then automatically selecting and operating the execution program matched with the mini transmitting card module according to the type of the motherboard to complete the corresponding functional design, and further realizing the corresponding functions of the LED transmitting card or the LED video processor.

Drawings

FIG. 1 is a first schematic block diagram of the circuit of the present invention;

FIG. 2 is a second schematic block diagram of the circuit of the present invention;

fig. 3 is a block diagram of the circuit principle of the present invention.

Detailed Description

The structure of the present invention will be further described with reference to the accompanying drawings and preferred embodiments of the present invention.

Referring to fig. 1 to 3, the present invention:

a modular combined multifunctional transmitting card system comprises a mother board 1 with a relatively large size and a mini transmitting card module 2 with a relatively small size, wherein the mini transmitting card module 2 can be assembled on the mother board 1 through a multifunctional connecting seat 3 in a combined mode of being quickly plugged and pulled out, and power is supplied through the connecting seat 3 and data transmission is carried out on devices on the mother board 1.

Specifically, the types of the mother boards 1 are LED transmitting card mother boards 11 or video processor mother boards 12, and on different types of mother boards 1, on-board signal interfaces 13 for data and power transmission with the upper computer 4 and different types of identification codes 14 corresponding to the types of the mother boards 1 one to one are provided. In cooperation, the mini distribution card module 2 is provided with an ID identification circuit 21 for identifying different kinds of identification codes 14 to identify the kinds of motherboards 1 connected to the mini distribution card module 2 and different kinds of execution programs (not shown) matched with the LED distribution card mother board 11 and the video processor mother board 12, so that after the mini distribution card module 2 is assembled on the corresponding mother board 1, the corresponding execution programs can be selected and run independently according to the kinds of the mother boards 1 to realize the functions of the LED distribution card or the video processor.

Through the technical means, the utility model has the following technical effects:

firstly, the mini transmitting card module 2 of the utility model is a highly integrated micro functional module, can be quickly plugged and pulled out through the connecting seat 3 to be matched with the motherboard 1 in a modular assembly mode for use, and has the advantages of small volume, no occupied space, flexible disassembly and assembly and convenient use.

In practical use, the mini sending card module 2 provided by the utility model is arranged on the motherboard 11 of the LED sending card to form the LED sending card which can be independently connected with the upper computer 4 for use, and the onboard signal interface 13 on the motherboard 1 is connected with the upper computer 4 to realize the function of the LED sending card. Compared with the prior art, the combined image processing system of the LED video processor and the LED transmitting card can be formed by installing the mini transmitting card module 2 on the video processor motherboard 12, the mini transmitting card module 2 and the video processor motherboard 12 share the onboard signal interface 13 on the mini transmitting card module to be connected with the upper computer 4, and are connected with the video processor motherboard 12 through the connecting seat 3 for data and power, the signal input and output of the mini transmitting card module 2 are realized through the connecting seat 3, the mini transmitting card module 2 and the video processor motherboard 12 are connected without using various cables with various types and models, the integration level is higher, the wiring in the LED video processor is simpler, the installation and the use are extremely convenient, the accommodating space does not need to be reserved for the LED transmitting card, and the occupation of the internal space of the LED video processor is greatly reduced, the overall size of the LED video processor chassis can be reduced.

Meanwhile, the mini transmitting card module 2 does not include an onboard signal interface 13 with larger volume and occupying larger space, electric power and data signal communication with the motherboard 1 can be realized only through the multifunctional connecting seat 3, and corresponding functions can be realized by connecting the onboard signal interface 13 arranged on the motherboard 1 with the upper computer 4, so that the number of peripheral devices and the overall size of a product are reduced, the size of a PCB (printed circuit board) of the mini transmitting card module 2 can be further reduced, the overall size of the mini transmitting card module is compressed to the utmost extent, and the mini transmitting card module 2 is conveniently integrated on other motherboards 1 of different types in a modular assembly mode to realize the purpose of multifunctional use.

Moreover, the structure of the existing LED transmitting card is improved, so that the LED transmitting card becomes a highly integrated mini transmitting card module 2 to be assembled in different types of motherboards 1, the corresponding functions of the LED transmitting card and an LED video processor are realized, the updating of a system can be reduced, the better utilization of old resources is realized, and the mini transmitting card module 2 can be used as a modular product to be provided for an LED large-screen manufacturer for system integration.

In addition, the mini transmitting card module 2 of the present invention can be assembled in different kinds of mother boards 1, automatically recognizes the identification code 14 on the mother board 1 through the ID recognition circuit 21 thereon, thereby distinguishing the kind of the mother board 1 product connected thereto, then automatically selects and runs the execution program matched therewith according to the kind of the mother board 1 to complete the corresponding functional design, and then realizes the corresponding function of the LED transmitting card or the LED video processor.

Specifically, referring to fig. 2 and 3, the mini transmitting card module 2 of the present invention includes a video signal transmission module 22, a control module 23 and a network output module 24, which are connected to the on-board signal interface 13 of the motherboard 1 through the connecting socket 3, wherein the control module 23 is connected between the video signal transmission module 22 and the network output module 24, and the network output module 24 is connected to the receiving card 5 of the LED display screen 6 through a network cable connected to the on-board signal interface 13.

A video signal transmission module 22, a control module 23 and a network output module 24 are integrated on the mini transmitting card module 2, and when the mini transmitting card module is actually used, the mini transmitting card module is connected with an upper computer 4 through a connecting seat 3 and an onboard signal interface 13 on a mother board 1 to receive video signals and realize 5V power supply. The on-board signal interface 13 is connected with the upper computer 4 to transmit a video signal to the video signal transmission module 22 through the connecting seat 3, then the video signal transmission module 22 converts the video signal in the TMDS format into an image signal in the TTL format and transmits the image signal to the control module 23 for processing, then the control module 23 encodes the input image signal in the TTL format and packages the encoded image signal and transmits the encoded image signal to the network output module 24, and finally the processed video signal is transmitted to the receiving card 5 through the connecting seat 3, the on-board signal interface 13 and a network cable and is played through the LED display screen 6.

Further, as shown in the figure, the video signal transmission module 22 of the present invention includes two RGB444 signal channels 221, which are connected to the upper computer 4 through the onboard signal interface 13 to receive and decode the TMDS format video signal sent by the upper computer 4, and transmit the image signal decoded into the TTL format to the control module 23 for further image processing.

The utility model receives the video signals transmitted by the upper computer 4 and transmitted by the on-board signal interface 13 on the motherboard 1 through the two RGB444 signal channels 221, can receive and process the video signals with the resolution of 4K to the maximum extent, has strong signal receiving capability, and is beneficial to improving the video playing definition of the LED display screen 6.

Further, referring to fig. 2 and 3, the control module 23 of the present invention is connected to the upper computer 4 through the connection socket 3 and the on-board signal interface 13 on the motherboard 1, so as to complete the configuration and testing of the mini transmitter card module 2 of the present invention under the driving of the control software of the upper computer 4.

Further, referring to fig. 2 and fig. 3, the control module 23 of the present invention includes an MCU controller 231 and an FPGA232 connected thereto, wherein the FPGA232 is connected to the video signal transmission module 22 to receive the image signal converted into the TTL format.

The MCU controller 231 is connected with the upper computer 4 through the connecting seat 3 and the onboard signal interface 13, completes the configuration and the test of the control module 23 under the drive of the control software of the upper computer 4, and controls the mode of the FPGA232 for processing the video signal and adjusts the output state of the FPGA according to the set configuration.

The FPGA232 encodes the video signal input by the video signal transmission module 22 according to the instruction of the MCU controller 231, processes the encoded video signal, and then packages the encoded video signal and transmits the encoded video signal to the network output module 24.

Specifically, the network output module 24 of the present invention includes two gigabit PHY chips 241 and two network transformers 242, the onboard signal interface 13 includes two gigabit PHY ports 131, and each of the network transformers 242 is connected between one of the gigabit PHY chips 241 and one of the gigabit PHY ports 131 through the connection socket 3.

Specifically, the two gigabit PHY ports 131 on the motherboard 1 are both RJ45 interfaces. The mini transmitting card module 2 of the present invention is used as a highly integrated functional module, most of the peripheral interfaces are eliminated, the network output module 24 itself does not include the RJ45 interface for plugging the network cable, and the design greatly reduces the overall size of the mini transmitting card module 2 of the present invention. And the network output module 24 of the mini sending card module 2 is not directly connected with the network cable, but is connected with the receiving card 5 of the LED display screen 6 through the connecting seat 3 and the network cable connected to the RJ45 interface, so that the mini sending card module 2 is prevented from being connected with the motherboard 1 through other interfaces except the connecting seat 3, and no other additional external interfaces are provided, so that the connection between the mini sending card module 2 and the motherboard 1 is simpler and more convenient, and the integration level is higher.

In actual use, the video signal input and control signal of the mini transmitting card module 2 are both led out through the connecting socket 3, if the corresponding function of the mini transmitting card module 2 needs to be realized, the corresponding type of connecting socket 3 needs to be corresponded, and the signal definition needs to accord with the electrical characteristics of the mini transmitting card module 2.

Generally, the signals involved in the connection socket 3 can be classified into 3 types, one of which is input LVTTL3V3 signal, adopting BT1120 interface protocol, and the main signals include pixel clock DCLK, line sync signal HS, field sync signal VS, and data D [29:0 ]. The external communication control serial port signal TXD/RXD is connected, and the state of the mini transmitting card module 2 can be inquired or changed by receiving an external MCU or a central control command signal.

The second is an automatic identification ID signal, LVTTL3V3 signals are input through the connecting socket 3 and the on-board signal interface 13, 4 lines correspond to the corresponding teaching of the MCU controller 231 accessing the control module 23 in the connecting socket 3 of the mini transmitting card module 2, and it can be determined according to the input automatic identification ID signal which the mini transmitting card module 2 is specifically assembled on which motherboard 1 during actual use, thereby loading corresponding firmware.

And the third is to output differential signals, which are encoded by the gigabit PHY chip 241 and transmitted to the network cable through the network transformer 242 via the connection socket 3 and the RJ45 interface, so as to enhance the transmission capability of video signal output.

Further, referring to fig. 2 and fig. 3, the motherboard 1 of the present invention is provided with an HDMI receiving chip 15 and a DVI receiving chip 16, which are connected to the on-board signal interface 13 and are used for receiving the video signal sent by the upper computer 4 and converting the video signal into a TTL image signal that can be read and processed by the mini transmitting card module 2. In actual use, different types of video signals sent by the upper computer 4 can be received by the corresponding HDMI receiving chip 15 or DVI receiving chip 16, and finally, the video signals with different formats are converted into image signals in TTL format which can be received and processed by the mini transmitting card module 2.

Since the video signal transmission module 22 of the mini transmitting card module 2 of the present invention includes two RGB444 signal channels 221, which can support 2 way 1080P BT1120 interface input, the motherboard 1 needs to be soldered with the corresponding on-board signal interface 13. The utility model converts the TMDS format video signal sent by the upper computer 4 into TTL3V3 signal through the HDMI receiving chip 15 or DVI receiving chip 16, and finally sends the converted video signal to the video signal transmission module 22 of the mini transmitting card module 2 as the image source. The motherboard 1 is in butt joint with the mini sending card module 2 through the high-speed connecting seat 3 and realizes the transmission of video signals, and the high-speed connecting seat 3 can effectively reduce the loss and distortion in the transmission process of the video signals and ensure the reliability of signal processing and the definition of video playing.

The utility model welds the HDMI receiving chip 15 and the DVI receiving chip 16 on the motherboard 1, and connects with the upper computer 4 through the on-board signal interface 13 to receive video signals with different formats, which is beneficial to reducing the whole size of the mini transmitting card module 2 of the utility model, and the mini transmitting card module 2 is assembled on the LED transmitting card motherboard 11, and then the data and power connection with the upper computer 4 can be realized through the on-board signal interface 13 in cooperation with the HDMI receiving chip 15, and the complete function of the LED transmitting card can be realized on the premise of ensuring the high integration of the mini transmitting card module 2.

Further, referring to fig. 2 and 3, the onboard signal interface 13 of the present invention includes a DVI interface 132 for signal input, an HDMI interface 133, and an RJ45 interface for signal output.

The onboard signal interface 13 is provided with various interfaces for signal input and output, so that the mother board 1 can be connected with various upper computers 4 and receive various video signal sources, and the applicability of the utility model is improved.

It should be noted that this example is only a preferred embodiment of the present invention, and does not limit the present invention. In other embodiments, the on-board signal interface 13 may also include an original VGA interface, an AV interface, and the like to enrich the types of video signals that can be received by the present invention, or enrich the types of connectable upper computers 4.

Further, referring to fig. 2 and fig. 3, a connection indicator 25 and a status indicator 26 are disposed on the mini transmitting card module 2 of the present invention, the connection indicator 25 is turned on when the mini transmitting card module 2 is successfully connected with the receiving card 5 of the LED display screen 6, the status indicator 26 is turned on when the mini transmitting card module 2 is in a fault state, the status indicator 26 is turned on when the mini transmitting card module 2 is in a normal working state, and the status indicator 26 is turned on when the mini transmitting card module 2 is in a data transmission state.

The connection indicator lamp 25 and the status indicator lamp 26 provided by the utility model can accurately reflect the connection and running status of the mini transmitting card module 2, so that a user can conveniently observe and know the running status of the mini transmitting card module, find problems and process the problems in time, and the use and maintenance of the user are facilitated.

During actual assembly, the mini transmitting card module 2 of the utility model can be plugged on the LED transmitting card mother board 11 through the connecting seat 3 to jointly form an LED transmitting card which has complete function and can be independently connected with the upper computer 4 for use independently of the LED video processor, the mini transmitting card module 2 automatically confirms the type of the mother board 1 through the ID identification circuit 21 and the identification code 14 and automatically selects and operates a corresponding execution program to automatically complete the configuration and detection of the mini transmitting card module 2. If the upper computer 4 is a computer, the mini transmitting card module 2 can be configured and tested by manual operation through control software on the computer after connection.

Similarly, the mini transmitting card module 2 of the present invention can be plugged into the video processor motherboard 12 of the LED video processor 7 through the connection socket 3, and after connection, the mini transmitting card module 2 of the present invention is integrated into the image processing system of the LED video processor 7, so as to realize connection between the mini transmitting card module 2 and the output terminal of the LED video processor 7, and then realize connection with the upper computer 4 through the on-board signal interface 13 on the video processor motherboard 12, so as to receive and process the image signal in TTL format converted by the LED video processor 7, and perform scaling, switching, and capturing operations on the TTL image signal according to the instruction requirement of the video processor motherboard 12, so as to realize the fusion of the functions of the LED video processor 7 and the LED transmitting card.

Compared with the structure that the LED video processor 7 is connected with the large-size LED sending card through cables of various specifications and types, the mini sending card module 2 can solve the problems of disordered internal wiring, inconvenient installation and use when the LED sending card is combined with the LED video processor 7, can reduce the power consumption and the heat productivity of a product, and improves the use reliability and the service life of the product. In addition, the mini transmitting card module 2 with a smaller size does not occupy more space inside the LED video processor 7, and is beneficial to reducing the whole volume of the LED video processor 7 for a manufacturing enterprise, thereby facilitating installation and use.

The above examples are merely for the purpose of clarifying a specific embodiment of the present invention and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications or variations of the motherboard 1, the mini transmitter card module 2, the connector socket 3, the LED transmitter card motherboard 11, the video processor motherboard 12, the on-board signal interface 13, etc. can be derived and summarized according to the present invention, and are not listed here. Any modification, replacement or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A modular multi-function card-issuing system, comprising:

2. A modular multi-function transmitter card system as recited in claim 1, wherein: the mini sending card module comprises a video signal transmission module, a control module and a network output module, wherein the video signal transmission module, the control module and the network output module are connected through the connecting seat and the onboard signal interface on the mother board, the control module is connected between the video signal transmission module and the network output module, and the network output module is connected with a receiving card of the LED display screen through a network cable connected to the onboard signal interface.

3. A modular multi-function transmitter card system as claimed in claim 2, wherein: the video signal transmission module comprises two RGB444 signal channels, is connected with the upper computer through the onboard signal interface to receive and decode video signals, and transmits the decoded video signals to the control module for processing.

4. A modular multi-function transmitter card system as claimed in claim 2, wherein: the control module is connected to the upper computer through the onboard signal interface so as to complete the configuration and the test of the mini sending card module under the drive of control software of the upper computer.

5. A modular multi-function transmitter card system as claimed in claim 2, wherein: the control module comprises an MCU controller and an FPGA connected with the MCU controller, the MCU controller controls the mode of processing the video signal by the FPGA and adjusts the output state of the FPGA, and the FPGA encodes and processes the video signal input by the video signal transmission module according to the instruction of the MCU controller and then packs the video signal and sends the video signal to the network output module.

6. A modular multi-function transmitter card system as claimed in claim 2, wherein: the network output module comprises two gigabit PHY chips and two network transformers, the onboard signal interface comprises two gigabit PHY network ports, and each network transformer is connected between one gigabit PHY chip and one gigabit PHY network port through the connecting seat.

7. A modular multi-function transmitter card system as recited in claim 1, wherein: the mother board is provided with an HDMI receiving chip and/or a DVI receiving chip which are connected with the onboard signal interface and used for receiving video signals sent by an upper computer and converting the video signals into TTL image signals which can be read and processed by the mini transmitting card module.

8. A modular multi-function transmitter card system as recited in claim 1, wherein: the onboard signal interface comprises a DVI interface, an HDMI interface and an RJ45 interface.

9. A modular multi-function transmitter card system as recited in claim 1, wherein: the mini sending card module on be equipped with a connection pilot lamp and a status indicator lamp, mini sending card module and LED display screen receive the card and shake hands under the connection success state connection pilot lamp light, mini sending card module fault state under the status indicator lamp often light, status indicator lamp slowly flashes under the normal operating condition of mini sending card module, mini sending card module carries out the flash of status indicator lamp under the data transmission state.

10. A modular multi-function transmitter card system as recited in claim 1, wherein: the video processor motherboard is arranged in the LED video processor and is connected with an upper computer through the onboard signal interface to receive video signals and convert the video signals into TTL image signals which can be read and processed by the mini transmitting card module; the mini sending card module is connected with the output end of the video processor motherboard through the connecting seat to receive the TTL image signal, and zooming, switching and intercepting operations are carried out on the TTL image signal according to the instruction requirement of the video processor motherboard so as to realize the function fusion of the LED video processor and the LED sending card.