A collection control circuit and device for USB3.0 collection card

Abstract

The utility model discloses a collection control circuit and device of a USB3.0 collection card, including a power management module, a USB3.0 interface module, a USB collection module, an FPGA module, an input-output switching control module, an HDMI input module, an HDMI output module and a storage module; the power management module is electrically connected to the USB3.0 interface module, the USB collection module, the FPGA module, the input-output switching control module, the HDMI input module, the HDMI output module and the storage module respectively; the USB3.0 interface module is electrically connected to the USB collection module, the USB collection module is electrically connected to the FPGA module and the input-output switching control module respectively, the input-output switching control module is electrically connected to the FPGA module, and the FPGA module is electrically connected to the HDMI input module, the HDMI output module and the storage module respectively. The utility model can not only realize the plug-and-play control of the USB3.0 collection card, but also switch the compatible collection input and output functions, and has high reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of USB, and in particular to an acquisition control circuit and a device of a USB3.0 acquisition card. Background Art

[0002] USB stands for "Universal Ser ial BUS" (Universal Serial Bus). USB acquisition card refers to the interface for inputting data into computer devices after acquisition. USB acquisition card has the advantages of small size, powerful functions, easy to carry, plug-and-play, hot-swap support, no need for external power supply, stable performance and good compatibility. USB acquisition card can capture high-quality dynamic and static images and supports laptops with built-in USB 2.0 interface.

[0003] At present, the application of USB2.0 acquisition cards in the video field cannot meet the high standards. In addition, the existing USB3.0 acquisition cards need to install drivers before they can be used, and they cannot be plug-and-play. They have poor compatibility with the system and software used, low resolution, and no frequency and frame conversion capabilities. In addition, the existing USB3.0 acquisition cards only have input acquisition functions, and are not compatible with the acquisition input and output functions, and their use scenarios are limited. Therefore, inventing a new acquisition control circuit and device for USB3.0 acquisition cards is an urgent problem to be solved by technicians in this field. Utility Model Content

[0004] The purpose of this application is to provide an acquisition control circuit and device for a USB3.0 acquisition card. In this solution, not only can the USB3.0 acquisition card be plug-and-play controlled, but also the functions of switching compatible acquisition input and output can be achieved, with high reliability.

[0005] In order to solve the above technical problems, the present application provides an acquisition control circuit of a USB3.0 acquisition card, including a power management module, a USB3.0 interface module, a USB acquisition module, an FPGA module, an input and output switching control module, an HDMI input module, an HDMI output module and a storage module;

[0006] The power management module is electrically connected to the USB3.0 interface module, the USB acquisition module, the FPGA module, the input / output switching control module, the HDMI input module, the HDMI output module and the storage module respectively;

[0007] The USB3.0 interface module is electrically connected to the USB acquisition module, the USB acquisition module is electrically connected to the FPGA module and the input / output switching control module respectively, the input / output switching control module is electrically connected to the FPGA module, and the FPGA module is electrically connected to the HDMI input module, the HDMI output module and the storage module respectively.

[0008] Preferably, the input-output switching control module includes a switching control unit and a button unit;

[0009] The button unit is electrically connected to the switching control unit, and the switching control unit is electrically connected to the USB acquisition module and the FPGA module respectively.

[0010] Preferably, the input-output switching control module further includes an indication unit;

[0011] The indicating unit is electrically connected to the switching control unit.

[0012] Preferably, the switching control unit is configured as an MCU.

[0013] Preferably, the HDMI input module comprises a first HDMI interface unit, a HDMI input signal transmission unit and a first electrostatic suppression unit;

[0014] The first HDMI interface unit is electrically connected to the first electrostatic suppression unit, the first electrostatic suppression unit is electrically connected to the HDMI input signal transmission unit, and the HDMI input signal transmission unit is electrically connected to the FPGA module.

[0015] Preferably, the HDMI output module includes a second HDMI interface unit, a HDMI output signal transmission unit and a second electrostatic suppression unit;

[0016] The second HDMI interface unit is electrically connected to the second electrostatic suppression unit, the second electrostatic suppression unit is electrically connected to the HDMI output signal transmission unit, and the HDMI output signal transmission unit is electrically connected to the FPGA module.

[0017] Preferably, the HDMI output module further comprises a power switch unit;

[0018] The power switch unit is electrically connected to the power management module and the HDMI output signal transmission unit respectively.

[0019] Preferably, the USB acquisition module includes a USB acquisition dedicated chip and an acquisition chip power supply;

[0020] The acquisition chip power supply is electrically connected to the power management module and the USB acquisition dedicated chip respectively, and the USB acquisition dedicated chip is electrically connected to the USB3.0 interface module and the FPGA module respectively.

[0021] Preferably, the storage module is configured as a DDR memory.

[0022] In order to solve the above technical problems, the present application provides an acquisition control device of a USB 3.0 acquisition card, including the acquisition control circuit of the USB 3.0 acquisition card.

[0023] The utility model has the following beneficial effects: the utility model discloses a USB3.0 acquisition card acquisition control circuit, including a power management module, a USB3.0 interface module, a USB acquisition module, an FPGA module, an input-output switching control module, an HDMI input module, an HDMI output module and a storage module; the power management module is electrically connected to the USB3.0 interface module, the USB acquisition module, the FPGA module, the input-output switching control module, the HDMI input module, the HDMI output module and the storage module; the USB3.0 interface module is electrically connected to the USB acquisition module, the USB acquisition module is electrically connected to the FPGA module and the input-output switching control module, the input-output switching control module is electrically connected to the FPGA module, and the FPGA module is electrically connected to the HDMI input module, the HDMI output module and the storage module. Therefore, the utility model can not only realize the plug-and-play control of the USB3.0 acquisition card, but also switch the compatible acquisition input and output functions, and has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0025] Figure 1 This is a schematic diagram of the principle block diagram of a collection control circuit of a USB3.0 collection card according to a preferred embodiment of the utility model;

[0026] Figure 2 This is a circuit schematic diagram of a switching control unit of a preferred embodiment of the utility model;

[0027] Figure 3This is a circuit schematic diagram of a key unit of a preferred embodiment of the utility model;

[0028] Figure 4 This is a circuit schematic diagram of an HDMI input signal transmission unit of a preferred embodiment of the utility model;

[0029] Figure 5 This is a circuit schematic diagram of a first HDMI interface unit of a preferred embodiment of the utility model;

[0030] Figure 6 This is a circuit schematic diagram of a first electrostatic suppression unit of a preferred embodiment of the utility model;

[0031] Figure 7 This is a circuit schematic diagram of an HDMI output signal transmission unit of a preferred embodiment of the utility model;

[0032] Figure 8 It is a circuit schematic diagram of a second HDMI interface unit of a preferred embodiment of the utility model;

[0033] Fig. 9 This is a circuit schematic diagram of a second electrostatic suppression unit in a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0034] The core of this application is to provide an acquisition control circuit and device for a USB3.0 acquisition card. In this solution, not only can the USB3.0 acquisition card be plug-and-play controlled, but also the functions of switching compatible acquisition input and output can be realized, with high reliability.

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] See also Figure 1 , Figure 1 A schematic block diagram of a USB 3.0 acquisition card acquisition control circuit provided in the present application, comprising a power management module 1, a USB 3.0 interface module 2, a USB acquisition module 3, an FPGA module 4, an input and output switching control module 5, an HDM I input module 6, an HDM I output module 7 and a storage module 8;

[0037] The power management module 1 is electrically connected to the USB3.0 interface module 2, the USB acquisition module 3, the FPGA module 4, the input and output switching control module 5, the HDM I input module 6, the HDM I output module 7 and the storage module 8 respectively;

[0038] The USB3.0 interface module 2 is electrically connected to the USB acquisition module 3, the USB acquisition module 3 is electrically connected to the FPGA module 4 and the input / output switching control module 5 respectively, the input / output switching control module 5 is electrically connected to the FPGA module 4, and the FPGA module 4 is electrically connected to the HDM I input module 6, the HDM I output module 7 and the storage module 8 respectively.

[0039] In the prior art, USB2.0 acquisition cards cannot meet high standards in the video field. In addition, existing USB3.0 acquisition cards require the installation of drivers before use, are not plug-and-play, have poor compatibility with the system and software used, have low resolution, and do not have frequency and frame conversion capabilities. In addition, existing USB3.0 acquisition cards only have input acquisition functions, and are not compatible with the input and output acquisition functions, limiting their use scenarios.

[0040] In view of the above shortcomings, in this application, the input and output switching and plug-and-play control of the USB3.0 acquisition card are realized through the cooperation of the power management module 1, the USB3.0 interface module 2, the USB acquisition module 3, the FPGA module, the input and output switching control module 5, the HDMI input module 6, the HDMI output module 7 and the storage module 8.

[0041] Specifically, in this embodiment, two pairs of SuperSpeed ​​data transmission differential signal lines are added to the USB3.0 interface module 2 and the USB acquisition module 3 respectively, so the present application can realize full-duplex bidirectional high-speed serial data transmission of data and support asynchronous transmission mode.

[0042] Specifically, in this embodiment, compared with other interfaces, the USB 3.0 interface has a high transmission speed and strong compatibility. The speed transmission rate of the USB 3.0 acquisition card can reach 625MB / s and is backward compatible with USB 2.0.

[0043] Specifically, the USB3.0 acquisition card of the present application adopts UVC design, and is plug-and-play without installing a driver. In addition, the USB3.0 acquisition card adopts FPGA design, has strong control flexibility, and can achieve frequency and frame conversion through the storage module 8.

[0044] Specifically, the present application sets the API to the input-output switching control module 5 through the host computer to change the input and output direction of the HDM I2.0, so as to be compatible with the functions of collecting input and output.

[0045] Specifically, in this embodiment, when the USB3.0 acquisition card switches to the input function, the audio and video input signals enter from the HDMI input module 6, the FPGA module 4 receives the audio and video input signals, and processes the audio and video input signals, such as implementing frequency conversion, frame conversion, and resolution processing, and then storing them in the storage module 8; when the FPGA module 4 receives the control instruction of the host computer, the FPGA module 4 calls the processed audio and video input signals from the storage module 8, realizes high-speed transmission through the USB3.0 interface module 2 and the USB acquisition module 3, and transmits the audio and video input signals to the host computer.

[0046] Specifically, in this embodiment, when the USB3.0 capture card switches to the output function, the host computer sends out an audio and video output signal, which is transmitted at high speed through the USB3.0 interface module 2 and the USB capture module 3, and stored in the FPGA module 4. After the FPGA module 4 performs video processing on the audio and video output signal, it is transmitted to the external audio and video device through the HDMI output module 7.

[0047] In summary, the present application provides a collection control circuit of a USB3.0 collection card, which includes a power management module 1, a USB3.0 interface module 2, a USB collection module 3, an FPGA module 4, an input / output switching control module 5, an HDM I input module 6, an HDM I output module 7 and a storage module 8; the power management module 1 is electrically connected to the USB3.0 interface module 2, the USB collection module 3, the FPGA module 4, the input / output switching control module 5, the HDM I input module 6, the HDM I output module 7 and the storage module 8 respectively; the USB3.0 interface module 2 is electrically connected to the USB collection module 3, the USB collection module 3 is electrically connected to the FPGA module 4 and the input / output switching control module 5 respectively, the input / output switching control module 5 is electrically connected to the FPGA module 4, and the FPGA module is electrically connected to the HDM I input module, the HDM I output module and the storage module respectively. Therefore, the present utility model can not only realize the plug-and-play control of the USB3.0 collection card, but also switch the compatible collection input and output functions, and has high reliability.

[0048] Based on the above embodiments:

[0049] Please refer to Figure 2 , Figure 2 A circuit schematic diagram of a switching control unit provided in this application.

[0050] Please refer to Figure 3 , Figure 3 A circuit schematic diagram of a key unit provided in this application.

[0051] As a preferred embodiment, the input-output switching control module 5 includes a switching control unit 51 and a button unit 52;

[0052] The button unit 52 is electrically connected to the switching control unit 51 , and the switching control unit 51 is electrically connected to the USB acquisition module and the FPGA module respectively.

[0053] Specifically, in this embodiment, the user can input a switching signal through the key unit 52, and after receiving the switching signal, the switching control unit 51 cooperates with the FPGA module 4 to realize the switching of the input and output direction of the HDMI 2.0.

[0054] Specifically, in this embodiment, the user can also remotely transmit a switching signal to the switching control module 5 through the host computer, and the switching control module 5 sets the API to change the input and output direction of the HDMI 2.0, which is not specifically limited here.

[0055] As a preferred embodiment, the input-output switching control module 5 further includes an indication unit 53;

[0056] The instruction unit 53 is electrically connected to the switching control unit 51 .

[0057] Specifically, the indicating unit 53 is used to indicate the input and output direction of the HDMI signal, which is not specifically limited herein.

[0058] As a preferred embodiment, the switching control unit 51 is configured as an MCU.

[0059] In addition, the switching control unit 51 of this embodiment may also be configured as other existing switching controllers, which are not specifically limited herein.

[0060] Please refer to Figure 4 , Figure 4 This is a circuit schematic diagram of an HDMI input signal transmission unit provided in this application.

[0061] Please refer to Figure 5 , Figure 5 A circuit schematic diagram of a first HDMI interface unit provided in this application.

[0062] Please refer to Figure 6 , Figure 6 A circuit schematic diagram of a first electrostatic suppression unit provided in the present application.

[0063] As a preferred embodiment, the HDMI input module 6 includes a first HDMI interface unit 61, a HDMI input signal transmission unit 62 and a first static electricity suppression unit 63;

[0064] The first HDMI interface unit 61 is electrically connected to the first static electricity suppression unit 63, the first static electricity suppression unit 63 is electrically connected to the HDMI input signal transmission unit 62, and the HDMI input signal transmission unit 62 is electrically connected to the FPGA module.

[0065] Specifically, in this embodiment, the first HDMI interface unit 61 is used to receive the HDMI signal, the first electrostatic suppression unit 63 is used to implement electrostatic protection of the HDMI input signal, and the HDMI input signal transmission unit 62 is used to transmit the HDMI signal to the FPGA module 4. It can be understood that the model of the HDMI input signal transmission unit 62 is set to XC6SLX16. In another embodiment, the model of the HDMI input signal transmission unit 62 is not specifically limited.

[0066] Please refer to Figure 7 , Figure 7 This is a circuit schematic diagram of an HDMI output signal transmission unit provided in this application.

[0067] Please refer to Figure 8 , Figure 8 This is a circuit schematic diagram of a second HDMI interface unit provided in this application.

[0068] Please refer to Fig. 9 , Fig. 9 A circuit schematic diagram of a second electrostatic suppression unit provided in the present application.

[0069] As a preferred embodiment, the HDMI output module 7 includes a second HDMI interface unit 71, an HDMI output signal transmission unit 72 and a second static electricity suppression unit 73;

[0070] The second HDMI interface unit 71 is electrically connected to the second electrostatic suppression unit 73, the second electrostatic suppression unit 73 is electrically connected to the HDMI output signal transmission unit 72, and the HDMI output signal transmission unit 72 is electrically connected to the FPGA module.

[0071] Specifically, in this embodiment, the second HDMI interface unit 71 is used to output the HDMI signal, the second electrostatic suppression unit 73 is used to implement electrostatic protection of the HDMI output signal, and the HDMI output signal transmission unit 72 is used to transmit the HDMI signal to an external audio and video device. It can be understood that the model of the HDMI output signal transmission unit 72 is set to XC6SLX16. In another embodiment, the model of the HDMI output signal transmission unit 72 is not specifically limited.

[0072] As a preferred embodiment, the HDMI output module 7 further includes a power switch unit;

[0073] The power switch unit is electrically connected to the power management module and the HDMI output signal transmission unit 72 respectively.

[0074] Specifically, the power switch unit is used for the power input of the HDMI output signal transmission unit 72.

[0075] As a preferred embodiment, the USB acquisition module includes a USB acquisition dedicated chip and an acquisition chip power supply;

[0076] The acquisition chip power supply is electrically connected to the power management module and the USB acquisition dedicated chip respectively, and the USB acquisition dedicated chip is electrically connected to the USB3.0 interface module and the FPGA module respectively.

[0077] Specifically, the model of the USB acquisition dedicated chip can be set to FX3_121_BUMP. In another preferred embodiment, the model of the USB acquisition dedicated chip is not specifically limited.

[0078] As a preferred embodiment, the storage module is configured as a DDR memory.

[0079] The present application also provides an acquisition control device for a USB 3.0 acquisition card, including the acquisition control circuit of the USB 3.0 acquisition card.

[0080] For an introduction to the acquisition control circuit of a USB3.0 acquisition card provided in this application, please refer to the above embodiment, and this application will not go into details here.

[0081] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0082] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A collection control circuit of a USB3.0 collection card, characterized in that: It includes power management module, USB3.0 interface module, USB acquisition module, FPGA module, input and output switching control module, HDMI input module, HDMI output module and storage module; The power management module is electrically connected to the USB3.0 interface module, the USB acquisition module, the FPGA module, the input / output switching control module, the HDMI input module, the HDMI output module and the storage module respectively; The USB3.0 interface module is electrically connected to the USB acquisition module, the USB acquisition module is electrically connected to the FPGA module and the input / output switching control module respectively, the input / output switching control module is electrically connected to the FPGA module, and the FPGA module is electrically connected to the HDMI input module, the HDMI output module and the storage module respectively.

2. The acquisition control circuit of a USB3.0 acquisition card according to claim 1, characterized in that: The input-output switching control module includes a switching control unit and a button unit; The button unit is electrically connected to the switching control unit, and the switching control unit is electrically connected to the USB acquisition module and the FPGA module respectively.

3. The acquisition control circuit of a USB 3.0 acquisition card according to claim 2, characterized in that: The input-output switching control module further includes an indication unit; The indicating unit is electrically connected to the switching control unit.

4. The acquisition control circuit of a USB3.0 acquisition card according to claim 2, characterized in that: The switching control unit is configured as an MCU.

5. The acquisition control circuit of a USB3.0 acquisition card according to claim 1, characterized in that: The HDMI input module includes a first HDMI interface unit, an HDMI input signal transmission unit and a first static electricity suppression unit; The first HDMI interface unit is electrically connected to the first electrostatic suppression unit, the first electrostatic suppression unit is electrically connected to the HDMI input signal transmission unit, and the HDMI input signal transmission unit is electrically connected to the FPGA module.

6. The acquisition control circuit of a USB 3.0 acquisition card according to claim 1, characterized in that: The HDMI output module includes a second HDMI interface unit, an HDMI output signal transmission unit and a second static electricity suppression unit; The second HDMI interface unit is electrically connected to the second electrostatic suppression unit, the second electrostatic suppression unit is electrically connected to the HDMI output signal transmission unit, and the HDMI output signal transmission unit is electrically connected to the FPGA module.

7. The acquisition control circuit of a USB3.0 acquisition card according to claim 6, characterized in that: The HDMI output module also includes a power switch unit; The power switch unit is electrically connected to the power management module and the HDMI output signal transmission unit respectively.

8. The acquisition control circuit of a USB 3.0 acquisition card according to claim 1, characterized in that: The USB acquisition module includes a USB acquisition dedicated chip and an acquisition chip power supply; The acquisition chip power supply is electrically connected to the power management module and the USB acquisition dedicated chip respectively, and the USB acquisition dedicated chip is electrically connected to the USB3.0 interface module and the FPGA module respectively.

9. The acquisition control circuit of a USB 3.0 acquisition card according to claim 1, characterized in that: The storage module is configured as a DDR memory.

10. A collection control device for a USB3.0 collection card, characterized in that: A collection control circuit comprising a USB 3.0 collection card as claimed in any one of claims 1 to 9.

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