A SpaceFibre bus data acquisition method based on PCIe interface

A data acquisition and interface technology, applied in the field of space technology data transmission applications, can solve the problems of not providing SpaceFibre proprietary interface, unable to collect SpaceFibre bus data in real time, etc., and achieve the effect of increasing the scope of application

Active Publication Date: 2019-03-01
BEIHANG UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The SpaceFibre ground networking pre-research stage needs to be connected to the computer network manager, but the existi

Method used

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  • A SpaceFibre bus data acquisition method based on PCIe interface
  • A SpaceFibre bus data acquisition method based on PCIe interface
  • A SpaceFibre bus data acquisition method based on PCIe interface

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] The present invention caches multiple virtual channel data received by the SpaceFibre bus from the SpaceFibre network in separate channels, formulates a plan for collecting virtual channel data by analyzing the SpaceFibre network broadcast channel data, and then collects each virtual channel data to a computer through a PCIe interface.

[0021] The present invention provides a kind of SpaceFibre bus data collection method based on PCIe interface, such as figure 1 As shown, the specific steps include:

[0022] Step 1, the SpaceFibre IP node module receives the data flow transmitted by the SpaceFibre network through the SpaceFibre link, and the data flow includes the SpaceFibre network broadcast channel data and each virtual channel data; the SpaceFibre IP node module sends the SpaceFibre network broadcast channel data to Broadcast channel parsing modul...

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Abstract

The invention discloses a SpaceFibre bus data acquisition method based on a PCIe interface, belonging to the application field of space technology. The invention divides a plurality of virtual channeldata buffers received by a SpaceFibre bus from a SpaceFibre network, By analyzing the data of SpaceFibre network broadcast channel, the scheme of collecting the virtual channel data is established, and then the data of each virtual channel is collected to the computer through PCIe interface. The method provided by the invention solves the incompatibility problem of the interface between the traditional computer and the SpaceFibre bus. The data acquisition of SpaceFibre bus by traditional computer is realized, which provides a reliable basis for the debugging of SpaceFibre on-board network, and increases the application range of SpaceFibre on-board network.

Description

technical field [0001] The invention belongs to the application field of space technology data transmission, and in particular relates to a SpaceFibre bus data acquisition method based on a PCIe interface. Background technique [0002] SpaceFibre is a high-speed, full-duplex aerospace serial bus whose transmission rate can reach 2Gbps to 40Gbps, supports multi-node data transmission, has high bandwidth, low delay, high reliability, low bit error rate and other performances, and supports virtual channel mechanism. [0003] In the SpaceFibre network, all data streams are transmitted through virtual channels. The number of virtual channels VC is determined by the load on the SpaceFibre data link, the maximum is 32, and each virtual channel VC is assigned a unique channel number from 0 to 31. [0004] The SpaceFibre broadcast channel can send SpaceFibre bus configuration information, including information such as the number of SpaceFibre virtual channels and the priority of ea...

Claims

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Application Information

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IPC IPC(8): G06F13/16G06F13/18G06F13/42
CPCG06F13/1673G06F13/18G06F13/4221
Inventor 伊小素王家兴姜梦茹曾华菘熊瑞董伟涛刘辉
Owner BEIHANG UNIV
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