A PXIe specification SDI and composite video capture card

Abstract

The PXIe specification SDI and composite video acquisition card includes a connector, an SDI equalizer, an SDI driver, a composite video receiver, a composite video generator, a nonvolatile flash memory, a field programmable logic device, a high-speed dynamic random access memory, a power management module and a PCIe bus interface.

Description

Technical Field

[0001] This utility model relates to fields such as industrial control and high-end manufacturing, and in particular to a PXIe-compliant SDI and composite video capture card. Background Technology

[0002] SDI stands for Serial Digital Interface. It is a professional, uncompressed, point-to-point digital video signal transmission standard that transmits video data, audio data, timecode, and all other information sequentially, bit by bit, over a single coaxial cable. This greatly simplifies system cabling, requiring only a single cable to transmit both video and audio simultaneously. SDI features high-quality video transmission, low latency, and long transmission distances, offering high communication efficiency and a unified communication protocol standard. It is currently used in industrial control and high-end manufacturing fields.

[0003] Composite video is one of the earliest methods of video signal transmission. It compresses and mixes all video information into a single signal channel, which is then transmitted over a single cable. Composite video is characterized by simple connection, stable video transmission, and long transmission distance, and it has a unified communication protocol standard. It is currently used in fields such as surveillance cameras.

[0004] With the development of camera technology, cameras output in various modes, making it crucial to capture video from these different modes. However, some video capture cards only support one type of camera mode. Therefore, there is a need to develop video capture cards that simultaneously support multiple camera modes. Currently, there are no chips that support multiple camera modes simultaneously, and there are very few video capture card products in China that do so. Therefore, the research and development of video capture cards that simultaneously support multiple camera modes is of great significance. Summary of the Invention

[0005] To address the current requirements of industrial control and high-end manufacturing equipment for video capture cards and meet the development needs of industrial manufacturing systems, this utility model provides a PXIe-compliant SDI and composite video capture card. This product uses discrete circuits to implement the communication electrical standards for SDI and composite video, and is designed with a PCIe bus interface, enabling it to be used in all industrial control computers based on the PCIe bus protocol.

[0006] The PXIe-compliant SDI and composite video capture card includes: a connector, an SDI equalizer, an SDI driver, a composite video receiver, a composite video generator, non-volatile flash memory, a field-programmable logic device, a high-speed dynamic random access memory, a power management module, and a PCIe bus interface.

[0007] The connector connects to the SDI equalizer, SDI driver, composite video receiver, and composite video generator. An SDI equalizer connects to field-programmable logic devices, power management modules, and connectors to acquire SDI signals.

[0008] An SDI driver connects field-programmable logic devices, power management modules, and connectors to achieve SDI signal output.

[0009] A composite video receiver connects to field-programmable logic devices, power management modules, and connectors to acquire composite video signals.

[0010] The composite video generator connects to field-programmable logic devices, power management modules, and connectors to achieve composite video signal output.

[0011] Non-volatile flash memory connects field-programmable logic devices and power management modules for data storage.

[0012] Field-programmable logic devices connect to SDI equalizers, SDI drivers, composite video receivers, composite video generators, non-volatile flash memory, high-speed dynamic random access memory, PCIe bus interfaces, and power management modules to achieve overall control.

[0013] High-speed dynamic random access memory, connected to field-programmable logic devices and power management modules, is used to buffer images from SDI cameras and composite video cameras.

[0014] The power management module connects to the SDI equalizer, SDI driver, composite video receiver, composite video generator, non-volatile flash memory, field-programmable logic device, high-speed dynamic random access memory, and PCIe bus interface to provide the required voltage to the acquisition card.

[0015] The PCIe bus interface connects field-programmable logic devices and power management modules, enabling PCIe data communication and external power input to the board.

[0016] The beneficial effects of this utility model are as follows: The PXIe-compliant SDI and composite video capture card is designed with a PCIe bus standard, supporting both SDI and composite video capture functions. The capture card uses discrete circuits to implement the communication electrical standards for SDI and composite video. It employs a field-programmable logic device (FPGA) as its core processing device and runs a self-developed video capture IP core. The performance and functions of the capture card can meet the requirements of current industrial manufacturing systems.

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1This utility model provides a structural block diagram of a PXIe-compliant SDI and composite video capture card. Detailed Implementation

[0019] like Figure 1 The diagram shown is a structural block diagram of a PXIe-compliant SDI and composite video capture card provided by this utility model. The PXIe-compliant SDI and composite video capture card includes: a connector 1, an SDI equalizer 2, an SDI driver 3, a composite video receiver 4, a composite video generator 5, a non-volatile flash memory 6, a field-programmable logic device 7, a high-speed dynamic random access memory 8, a power management module 9, and a PCIe bus interface 10.

[0020] Connector 1 connects to SDI equalizer 2, SDI driver 3, composite video receiver 4, and composite video generator 5. SDI equalizer 2 connects to field programmable logic device 7, power management module 9 and connector 1 to realize SDI signal acquisition.

[0021] The SDI driver 3 connects to the field-programmable logic device 7, the power management module 9, and the connector 1 to achieve SDI signal output.

[0022] The composite video receiver 4 connects to the field-programmable logic device 7, the power management module 9, and the connector 1 to realize composite video signal acquisition.

[0023] The composite video generator 5 connects to the field programmable logic device 7, the power management module 9, and the connector 1 to achieve composite video signal output.

[0024] The non-volatile flash memory 6 connects to the field-programmable logic device 7 and the power management module 9 for data storage.

[0025] The field-programmable logic device 7 connects to the SDI equalizer 2, SDI driver 3, composite video receiver 4, composite video generator 5, non-volatile flash memory 6, high-speed dynamic random access memory 8, PCIe bus interface 10, and power management module 9 to achieve overall control.

[0026] The high-speed dynamic random access memory 8 is connected to the field-programmable logic device 7 and the power management module 9 to implement image buffering for SDI cameras and composite video cameras.

[0027] The power management module 9 connects to the SDI equalizer 2, SDI driver 3, composite video receiver 4, composite video generator 5, non-volatile flash memory 6, field-programmable logic device 7, high-speed dynamic random access memory 8, and PCIe bus interface 10, and is used to provide the required voltage to the inside of the acquisition card.

[0028] The PCIe bus interface 10 connects the field-programmable logic device 7 and the power management module 9 to realize PCIe data communication and external power input to the board.

[0029] The beneficial effects of this utility model are as follows: The PXIe-compliant SDI and composite video capture card is designed with a PCIe bus standard, supporting both SDI and composite video capture functions. The capture card uses discrete circuits to implement the communication electrical standards for SDI and composite video. It employs a field-programmable logic device (FPGA) as its core processing device and runs a self-developed video capture IP core. The performance and functions of the capture card can meet the requirements of current industrial manufacturing systems.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A PXIe-compliant SDI and composite video capture card, characterized in that: The PXIe-compliant SDI and composite video capture card includes: a connector, an SDI equalizer, an SDI driver, a composite video receiver, a composite video generator, non-volatile flash memory, a field-programmable logic device, a high-speed dynamic random access memory, a power management module, and a PCIe bus interface. The connector connects to the SDI equalizer, SDI driver, composite video receiver, and composite video generator. An SDI equalizer connects to field-programmable logic devices, power management modules, and connectors to acquire SDI signals. An SDI driver connects field-programmable logic devices, power management modules, and connectors to achieve SDI signal output. A composite video receiver connects to a field-programmable logic device, a power management module, and connectors to achieve composite video signal acquisition. The composite video generator connects to field-programmable logic devices, power management modules, and connectors to achieve composite video signal output. Non-volatile flash memory connects field-programmable logic devices and power management modules for data storage; Field-programmable logic devices connect to SDI equalizers, SDI drivers, composite video receivers, composite video generators, non-volatile flash memory, high-speed dynamic random access memory, PCIe bus interfaces, and power management modules to achieve overall control. High-speed dynamic random access memory, connected to field-programmable logic devices and power management modules, is used to buffer images from SDI cameras and composite video cameras; The power management module connects to the SDI equalizer, SDI driver, composite video receiver, composite video generator, non-volatile flash memory, field-programmable logic device, high-speed dynamic random access memory and PCIe bus interface, and is used to provide the required voltage to the inside of the acquisition card; The PCIe bus interface connects field-programmable logic devices and power management modules, enabling PCIe data communication and external power input to the board.

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