Manufacturing method of PCI Express data collection card

A technology of data acquisition card and production method, which is applied in the input/output process of data processing, electrical digital data processing, instruments, etc., and can solve the problems of few processing channels, no external analog and digital channels, high cost, etc.

Inactive Publication Date: 2006-06-28
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AI-Extracted Technical Summary

Problems solved by technology

[0002] The high-speed data acquisition cards currently on the market have many defects or shortcomings: some use a large amount of RAM to store data, and th...
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A method for preparing PCI Express data collection card includes obtaining digital signal by converting external analog signal with A/ D conversion module, storing digital signal in RAM storage after it is processed by digital signal processing module, delivering external digital signal directly to digital signal processing module and storing it in RAM storage then delivering required result to computer for processing through PCI Express bus.

Application Domain

Input/output processes for data processing

Technology Topic

PCI ExpressCollections data +5


  • Manufacturing method of PCI Express data collection card


  • Experimental program(1)

Example Embodiment

[0007] In the following detailed description, specific details are set forth in order to provide a thorough understanding of the present invention. However, those skilled in the art will recognize that the present invention may be practiced with other similar details.
[0008] The invention consists of an A/D conversion module, a digital signal processing module, a RAM and a PCI Express interface module. The external analog signal is converted by the A/D conversion module to obtain a digital signal, and the digital signal is stored in the memory RAM through the digital signal processing module; the external digital signal is directly handed over to the digital signal processing module and stored in the memory RAM, and then The required results are handed over to the computer for processing via the PCI Express bus. Due to the high-speed data transmission capability of PCI Experss, the RAM used in this system can be very small and only needs to be used as a data cache.
[0009] The invention has strong real-time performance, flexible structure, strong versatility, and is suitable for large-scale design. At the same time, it can provide API and remote network interface, which is convenient for secondary development and is suitable for various data acquisition equipment.
[0010] Although certain such features of the invention and one method of implementation have been described herein, many modifications, substitutions, changes and equivalents will occur to those skilled in the art. Accordingly, the scope of protection of the present invention is to be determined by the scope of the appended claims.


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Description & Claims & Application Information

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