Application circuit for a triple video processor

Abstract

The utility model discloses a kind of application circuits of three-in-one video processor, comprising: mutually communicating TV chip, MCU chip, ARM central control chip, FPGA sending card.This scheme is through the image processor capability of TV chip, the sending card function of FPGA, the peripheral interface of ARM powerful, plus the man-machine interactive control function of single-chip microcomputer, not only support input signal synchronous play, U disk local play, 4G remote control, ethernet control, screen projection, also reduce the required equipment quantity of same asynchronous solution, only a three-in-one video processor can support the synchronous sending function of traditional video processor and the asynchronous play function of play box, without increasing other play box, greatly enrich the function of three-in-one video processor, improve the system stability of video processor, save the cost of exhibition display solution.

Description

Technical Field

[0001] This utility model relates to the field of LED video processor technology, and in particular to an application circuit for a three-in-one video processor. Background Technology

[0002] Currently, LED video processors only support synchronous signals from video interface inputs such as HDMI and DP, processing synchronous signal transmission. They do not support asynchronous playback mode via USB flash drive, nor do they support Ethernet, 4G remote control, or screen projection. From current field applications, LED large screens, besides being used for real-time synchronous computer screen presentations in conference rooms and concerts, also need to support looping asynchronous playback via USB flash drive and screen projection. Furthermore, to facilitate on-site debugging and control, the market demand for Ethernet control and 4G remote control is increasingly urgent. According to current LED video processor solutions, an additional playback box is needed to achieve both synchronous and asynchronous playback capabilities. The LED video processor and playback box also need to be compatible in terms of communication protocols to achieve synchronous / asynchronous mode switching. For large conference halls with multiple screens requiring both synchronous and asynchronous playback, the solution is quite complex. In addition, traditional LED video processors use USB for debugging, but USB itself has a short transmission distance, which is not conducive to long-distance debugging and does not support multi-device cluster control. Utility Model Content

[0003] The main purpose of this utility model is to propose an application circuit for a three-in-one video processor, which mainly solves the problems of existing traditional LED video processors not supporting local playback from USB flash drives, Ethernet cluster control, 4G remote control, and screen projection.

[0004] To achieve the above objectives, this utility model proposes an application circuit for a three-in-one video processor. The application circuit includes: a TV chip, an MCU chip, an ARM central control chip, and an FPGA transmitting card, all interconnected. The TV chip is used to parse the synchronization signal input from the video interface and perform image data conversion processing, and then transmit the processed signal to the FPGA transmitting card. The FPGA transmitting card is used to parse the image data from the TV chip and convert it into network data. The network data is then transmitted to the PHY chip through the RGMII interface, and the PHY chip then transmits it to the receiving card through the network protocol. The MCU chip is used to drive the LCD screen and control the human-computer interaction function, upgrade the TV chip, and communicate with the FPGA sending card and ARM central control chip to transmit human-computer interaction related instructions. The ARM central control chip is used to communicate with the host computer software and distribute the host computer's operation instructions to the FPGA sending card, TV chip, and MCU chip. It also uploads data from the lower-level device to the host computer. The ARM central control chip supports transmitting the program content of the USB flash drive to the TV chip via TMDS, and then the TV chip forwards it to the FPGA sending card, thereby realizing the transmission of the program content of the USB flash drive to the LED screen for playback.

[0005] The ARM central control chip also supports Ethernet, USB 3.0, 4G, and screen mirroring functions.

[0006] The TV chip is an MST91A4Q1 chip.

[0007] The TV chip is also used to scale images, optimize display effects, and support parsing audio signals from HDMI and DP signals, outputting them through Audio OUT.

[0008] The MCU chip is a GD32F207VGT6 microcontroller.

[0009] The FPGA transmitting card is a PH1P100SBG677 chip.

[0010] The ARM central control chip includes the SOC RK3328 chip, which has a 100Mbps MAC, USB, and CPU interface, and supports Ethernet, USB flash drive playback, 4G, and screen projection functions, respectively.

[0011] This utility model proposes a three-in-one video processor application circuit, comprising: a TV chip, an MCU chip, an ARM central control chip, and an FPGA transmitting card that are interconnected. The TV chip is used to parse the synchronization signal input from the video interface and perform image data conversion processing, transmitting the processed signal to the FPGA transmitting card. The FPGA transmitting card is used to parse the image data from the TV chip, convert it into network data, and transmit the network data to the PHY chip via the RGMII interface. The PHY chip then transmits the network data to the receiving card via a network protocol. The MCU chip is used to drive the LCD screen and control the human-machine interaction function, upgrade the TV chip, and communicate with the FPGA transmitting card and the ARM central control chip to transmit human-machine interaction related instructions. The ARM central control chip is used to communicate with the host computer software, distribute the host computer's operation instructions to the FPGA transmitting card, TV chip, and MCU chip, and upload data from the slave device to the host computer. The ARM central control chip supports transmitting program content from a USB flash drive to the TV chip via TMDS, which then forwards it to the FPGA transmitting card, thereby enabling the transmission of program content from the USB flash drive to an LED screen for playback. This solution leverages the image processor capabilities of a TV chip, the sending card function of an FPGA, the powerful peripheral interfaces of an ARM processor, and the human-machine interaction control functions of a microcontroller. It not only supports synchronous playback of input signals, local playback from a USB flash drive, 4G remote control, Ethernet control, and screen projection, but also reduces the number of devices required for synchronous and asynchronous solutions. Only one three-in-one video processor is needed to support the synchronous sending function of a traditional video processor and the asynchronous playback function of a playback box, eliminating the need for additional playback boxes. This greatly enriches the functionality of the three-in-one video processor, improves the system stability of the video processor, and saves costs for exhibition and display solutions. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the application circuit of the three-in-one video processor of this utility model.

[0014] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1 As shown, this utility model proposes an application circuit for a three-in-one video processor, which is mainly used in the field of LED video processors. It solves the problems of existing traditional LED video processors not supporting local playback from USB flash drives, Ethernet cluster control, 4G remote control, and screen projection.

[0017] The application circuit of this three-in-one video processor includes: a TV chip, an MCU chip, an ARM central control chip, and an FPGA transmitting card that are interconnected, among which: The TV chip is used to parse the synchronization signal input from the video interface and perform image data conversion processing, and then transmit the processed signal to the FPGA transmitting card. The FPGA transmitting card is used to parse the image data from the TV chip and convert it into network data. The network data is then transmitted to the PHY chip through the RGMII interface, and the PHY chip then transmits it to the receiving card through the network protocol. The MCU chip is used to drive the LCD screen and control the human-computer interaction function, upgrade the TV chip, and communicate with the FPGA sending card and ARM central control chip to transmit human-computer interaction related instructions. The ARM central control chip is used to communicate with the host computer software and distribute the host computer's operation instructions to the FPGA sending card, TV chip, and MCU chip. It also uploads data from the lower-level device to the host computer. The ARM central control chip supports transmitting the program content of the USB flash drive to the TV chip via TMDS, and then the TV chip forwards it to the FPGA sending card, thereby realizing the transmission of the program content of the USB flash drive to the LED screen for playback.

[0018] The ARM central control chip also supports Ethernet, USB 3.0, 4G, and screen mirroring functions.

[0019] The TV chip is an MST91A4Q1 chip.

[0020] The TV chip is also used to scale images, optimize display effects, and support parsing audio signals from HDMI and DP signals, outputting them through Audio OUT.

[0021] The MCU chip is a GD32F207VGT6 microcontroller.

[0022] The FPGA transmitting card is a PH1P100SBG677 chip.

[0023] The ARM central control chip includes the SOC RK3328 chip, which has a 100Mbps MAC, USB, and CPU interface, and supports Ethernet, USB flash drive playback, 4G, and screen projection functions, respectively.

[0024] This utility model proposes a three-in-one video processor application circuit. By leveraging the image processing capabilities of a TV chip, the sending card function of an FPGA, the powerful peripheral interface of an ARM processor, and the human-computer interaction control function of a microcontroller, it not only supports synchronous playback of input signals, local playback from a USB flash drive, 4G remote control, Ethernet control, and screen projection, but also reduces the number of devices required for synchronous and asynchronous solutions. Only one three-in-one video processor is needed to support the synchronous sending function of a traditional video processor and the asynchronous playback function of a playback box, eliminating the need for additional playback boxes. This greatly enriches the functionality of the three-in-one video processor, improves the system stability of the video processor, and saves costs for exhibition and display solutions.

[0025] The following combination Figure 1 The principle of the application circuit of the three-in-one video processor of this utility model is explained in detail: like Figure 1 As shown, the application circuit of this utility model's three-in-one video processor comprises: an MST91A4Q1 TV image processing section, a PH1P100SBG677 FPGA transmitting card section, a GD32F207VGT6 microcontroller (MCU) control section, and an RK3328 central control section. Among them: The MST91A4Q1 image processing section is primarily responsible for parsing and converting 4K signals input from interfaces such as HDMI and DP. The image data is converted into high-speed serial signals and transmitted to the FPGA via the V-By-One interface. In addition to data conversion, the MST91A4Q1 TV chip also performs image scaling, display effect optimization, and other processing. It also supports parsing audio signals from HDMI and DP inputs and outputting them through Audio OUT.

[0026] The PH1P100SBG677 FPGA transmitting card section: The FPGA section is mainly responsible for parsing the image data from the TV chip and converting it into network data, which is then transmitted to the PHY chip through the RGMII interface. The PHY chip then transmits the data to the receiving card through the network protocol. The FPGA section is mainly responsible for parsing the data and forwarding it.

[0027] The GD32F207VGT6 microcontroller (MCU) control section is mainly responsible for driving the LCD screen, controlling knobs, buttons, and other human-computer interaction functions. The MCU is also responsible for upgrading the TV chip and communicating with the FPGA and ARM to transmit human-computer interaction related instructions.

[0028] The RK3328 ARM central control unit: The ARM acts as the brain of the three-in-one video processor. It is mainly responsible for communicating with the host computer software and distributing the host computer's operation instructions to the FPGA, TV, MCU, etc. It also needs to upload data from the slave device to the host computer, playing a central control role. The ARM also supports transmitting program content from the USB flash drive to the TV via TMDS, and the TV then forwards it to the FPGA transmitter, thereby realizing the transmission of program content from the USB flash drive to the LED screen for playback. The ARM part also supports WiFi, 4G, screen projection and other functions.

[0029] The working principle is as follows: The three-in-one video processor mainly uses a TV chip to process image signals transmitted from HDMI, DP, ARM, etc., and then forwards them to the FPGA transmitting card. The FPGA then transmits the data to the receiving card via the network, and the receiving card then displays the data on the LED screen. The three-in-one video processor includes three main functions: input synchronization signal, local asynchronous playback from USB flash drive, and FPGA transmitting card.

[0030] In addition, it should be noted that the ARM portion has the following unique features that greatly improve the performance of the three-in-one video processor.

[0031] ①The ARM part of the SOC RK3328 has an embedded 100M PHY function, and Ethernet supports transmission over 100-meter network cables and also supports local area network interconnection. With the addition of Ethernet function, the three-in-one video processor solves the problem of short transmission distance of USB-B, which is not convenient for remote debugging, and further supports the function of multi-device cluster control within a local area network.

[0032] ②The ARM section uses a dedicated WiFi module, which has strong performance and can support screen mirroring.

[0033] ③The ARM part of the SOC supports USB 3.0 interface and supports 4K video playback from USB flash drive.

[0034] ④ The ARM part supports 4G modules, which can realize remote control of the three-in-one video processor.

[0035] The beneficial effects of the application circuit of the three-in-one video processor proposed in this utility model are as follows: This utility model proposes a three-in-one video processor application circuit, comprising: a TV chip, an MCU chip, an ARM central control chip, and an FPGA transmitting card that are interconnected. The TV chip is used to parse the synchronization signal input from the video interface and perform image data conversion processing, transmitting the processed signal to the FPGA transmitting card. The FPGA transmitting card is used to parse the image data from the TV chip, convert it into network data, and transmit the network data to the PHY chip via the RGMII interface. The PHY chip then transmits the network data to the receiving card via a network protocol. The MCU chip is used to drive the LCD screen and control the human-machine interaction function, upgrade the TV chip, and communicate with the FPGA transmitting card and the ARM central control chip to transmit human-machine interaction related instructions. The ARM central control chip is used to communicate with the host computer software, distribute the host computer's operation instructions to the FPGA transmitting card, TV chip, and MCU chip, and upload data from the slave device to the host computer. The ARM central control chip supports transmitting program content from a USB flash drive to the TV chip via TMDS, which then forwards it to the FPGA transmitting card, thereby enabling the transmission of program content from the USB flash drive to an LED screen for playback. This solution leverages the image processor capabilities of a TV chip, the sending card function of an FPGA, the powerful peripheral interfaces of an ARM processor, and the human-machine interaction control functions of a microcontroller. It not only supports synchronous playback of input signals, local playback from a USB flash drive, 4G remote control, Ethernet control, and screen projection, but also reduces the number of devices required for synchronous and asynchronous solutions. Only one three-in-one video processor is needed to support the synchronous sending function of a traditional video processor and the asynchronous playback function of a playback box, eliminating the need for additional playback boxes. This greatly enriches the functionality of the three-in-one video processor, improves the system stability of the video processor, and saves costs for exhibition and display solutions.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An application circuit for a three-in-one video processor, characterized in that, The application circuit of the three-in-one video processor includes: a TV chip, an MCU chip, an ARM central control chip, and an FPGA transmitting card that are interconnected, wherein: The TV chip is used to parse the synchronization signal input from the video interface and perform image data conversion processing, and then transmit the processed signal to the FPGA transmitting card. The FPGA transmitting card is used to parse the image data from the TV chip and convert it into network data. The network data is then transmitted to the PHY chip through the RGMII interface, and the PHY chip then transmits it to the receiving card through the network protocol. The MCU chip is used to drive the LCD screen and control the human-computer interaction function, upgrade the TV chip, and communicate with the FPGA sending card and ARM central control chip to transmit human-computer interaction related instructions. The ARM central control chip is used to communicate with the host computer software and distribute the host computer's operation instructions to the FPGA sending card, TV chip, and MCU chip. It also uploads data from the lower-level device to the host computer. The ARM central control chip supports transmitting the program content of the USB flash drive to the TV chip via TMDS, and then the TV chip forwards it to the FPGA sending card, thereby realizing the transmission of the program content of the USB flash drive to the LED screen for playback.

2. The application circuit of the three-in-one video processor according to claim 1, characterized in that, The ARM central control chip also supports Ethernet, USB 3.0, 4G, and screen mirroring functions.

3. The application circuit of the three-in-one video processor according to claim 2, characterized in that, The TV chip is an MST91A4Q1 chip.

4. The application circuit of the three-in-one video processor according to claim 3, characterized in that, The TV chip is also used to scale images, optimize display effects, and support parsing audio signals from HDMI and DP signals, outputting them through Audio OUT.

5. The application circuit of the three-in-one video processor according to claim 1, characterized in that, The MCU chip is a GD32F207VGT6 microcontroller.

6. The application circuit of the three-in-one video processor according to claim 1, characterized in that, The FPGA transmitting card is a PH1P100SBG677 chip.

7. The application circuit of the three-in-one video processor according to claim 2, characterized in that, The ARM central control chip includes the SOC RK3328 chip, which has a 100Mbps MAC, USB, and CPU interface, and supports Ethernet, USB flash drive playback, 4G, and screen projection functions, respectively.

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