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SpaceFibre satellite-borne network service quality control system based on FPGA (Field Programmable Gate Array)

A network service and control system technology, applied in the field of FPGA-based SpaceFibre on-board network service quality control system, can solve the problems of no application, stay scheduling algorithm, etc., to ensure stability, improve operation speed, and speed up data reading speed Effect

Active Publication Date: 2019-11-19
NAT SPACE SCI CENT CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current domestic research on SpaceFibre service quality only stays in the research stage of scheduling algorithms, without practical application

Method used

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  • SpaceFibre satellite-borne network service quality control system based on FPGA (Field Programmable Gate Array)
  • SpaceFibre satellite-borne network service quality control system based on FPGA (Field Programmable Gate Array)
  • SpaceFibre satellite-borne network service quality control system based on FPGA (Field Programmable Gate Array)

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Embodiment Construction

[0049] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0050] Such as figure 1 As shown, the present invention provides an FPGA-based SpaceFibre satellite-borne network service quality control system, which includes: four-way virtual channel flow control modules and a single-way media access controller.

[0051] In this embodiment, four channels of virtual channel flow control modules are used for illustration, but the four channels of data are not limited.

[0052] Each virtual channel flow control module includes: receiving submodule, FIFO buffer, storage control submodule, sending data counting submodule, flow control credit submodule and sending submodule;

[0053] The receiving submodule is used to receive the number of the virtual channel, the payload character data and the flow control instruction of the virtual channel;

[0054] FIFO buffer for storing the pay...

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Abstract

The invention discloses a SpaceFibre satellite-borne network service quality control system based on an FPGA (Field Programmable Gate Array), which comprises a multi-path virtual channel flow controlmodule and a single-path medium access controller, and is characterized in that the medium access controller is provided with a plurality of priority calculation modules and a scheduling module; a virtual channel flow control module which is used for receiving data of a virtual channel and generating a data sending request, and is also used for sending the data segment and the data word count value output by the buffer area to the media access controller when receiving a sending enable signal of the media access controller; a priority calculation module which is used for calculating the priority and sending the priority to the scheduling module; a scheduling module which is used for carrying out parallel sorting on the received priorities and selecting a scheduled virtual channel from allthe virtual channels according to a sorting result; transmitting and sending a data enabling signal to a virtual channel flow control module corresponding to the scheduled virtual channel; and outputting the number of the scheduled virtual channel and the data segment output by the buffer area of the corresponding virtual channel flow control module.

Description

technical field [0001] The invention relates to the technical field of spacecraft ultra-high-speed data transmission network, in particular to an FPGA-based SpaceFibre satellite-borne network service quality control system. Background technique [0002] The birth of high-speed payloads such as synthetic aperture radar and multispectral imager has put forward higher requirements on the speed of data processing of satellite payload communication systems. The existing bus standard SpaceWire has been unable to meet this demand. In response to this problem, the University of Dundee, in cooperation with ESA, proposed the ultra-high-speed serial satellite-borne data link SpaceFibre technology. [0003] At present, the University of Dundee has completed the development and verification of the SpaceFibre codec IP core with complete functions, and is about to enter the application stage of the model task. In addition, Russia, Germany, Sweden and other countries have also carried out...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04L12/865H04L47/6275
CPCH04B7/18515H04L47/6275
Inventor 郑静雅安军社
Owner NAT SPACE SCI CENT CAS
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