High-speed spatial network data protocol conversion and multiplexing device based on FPGA

A space network and data protocol technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problem of not being able to adapt to the data transmission requirements of high-speed space network, so as to improve the protocol conversion rate, improve the versatility, and meet the delay Effect

Inactive Publication Date: 2020-08-18
SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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  • Application Information

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Problems solved by technology

[0004] Obviously, the traditional low-speed processing scheduling method based on LVDS, RS422 and other custom interface data can no longer meet the transmission requirements of high-speed space network data

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  • High-speed spatial network data protocol conversion and multiplexing device based on FPGA
  • High-speed spatial network data protocol conversion and multiplexing device based on FPGA
  • High-speed spatial network data protocol conversion and multiplexing device based on FPGA

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Embodiment Construction

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all examples. Based on the present invention All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] In order to facilitate the understanding of the embodiments of the present invention, specific embodiments will be taken as examples for further explanation below in conjunction with the accompanying drawings, and each embodiment does not constitute a limitation to the embodiments of the present invention.

[0032] refer to figure 1 As shown, this embodiment provides an FPGA-based high-speed space network data protocol conversion and multiplexing device, including: a network...

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Abstract

The invention provides a high-speed space network data protocol conversion and multiplexing device based on an FPGA. The device comprises a network layer processing part and a data link layer processing part. Wherein the network layer processing part comprises a cache control module used for caching intermediate data of an IP packet received by a space network; an IP packet subpackaging module which is used for classifying IP packets to obtain classification information and performing classification caching; an EPDU packet packaging module which is used for packaging the IP packets according to the classification information to obtain EPDU packets and storing the EPDU packets into corresponding caches respectively; the data link layer processing part comprises: an MPDU packet packaging module, which is used for packaging cached EPDU packets to obtain MPDU packets; an AOS transmission frame packaging module which is used for packaging the MPDU packets to obtain AOS transmission frames;and a channel multiplexing scheduling module which is used for performing channel multiplexing scheduling on the AOS transmission frame and outputting the AOS transmission frame to a physical channel.

Description

technical field [0001] The invention relates to the technical field of space network data processing, in particular to an FPGA-based high-speed space network data protocol conversion and multiplexing device. Background technique [0002] With the development of aerospace technology, space missions are becoming more and more complex, and the demand for spacecraft networking and interconnection is increasing. Most of the current space-based networks are self-contained and inconsistent with the mature TCP / IP network standards on the ground, which seriously restricts the flexibility, efficiency and interoperability of space-ground data interaction. The integration and unification of space-based networks and ground networks has become a The inevitable trend of future spatial data system development. [0003] In space-to-earth network communications, on the one hand, it is necessary to adapt to the characteristics of high delay, intermittent connection, and high bit error rate of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/851
CPCH04L69/08H04L69/22H04L47/2433H04L47/2441
Inventor 朱浩文朱剑辉赵静李晟昊徐培婷陈乾蔡非凡
Owner SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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