Method for constructing moment dispatch list suitable for SpaceWire network

A construction method and scheduling table technology, which is applied in the field of space-borne aviation communication, can solve problems such as the inability to guarantee the SpaceWire network, and achieve the effects of simple scheduling, guaranteed certainty, and guaranteed certainty

Active Publication Date: 2013-12-18
BEIHANG UNIV
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the existing technology which only provides the method of deterministic data transmission in the end system, but cannot guarantee the whole SpaceWire

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for constructing moment dispatch list suitable for SpaceWire network
  • Method for constructing moment dispatch list suitable for SpaceWire network
  • Method for constructing moment dispatch list suitable for SpaceWire network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0087] Combine below Figure 5 The end systems and routers listed in the examples further illustrate the present invention. Figure 5 The SpaceWire network shown contains 5 end systems and 2 routers. The E-end system is a large-capacity memory unit and also serves as a time master node. The A-end system and the B-end system are effective load devices, the C-end system is the control device, and the D-end system is the load data processing unit.

[0088] The process of information flow is: the payload device A-end system and B-end system send their own state information to the mass storage unit (E-end system), then the information sent by the A-end system to the E-end system is marked as f 15 , The information sent by the B-end system to the E-end system is denoted as f 25 ; At the same time, the A-side system and the B-side system send the original load data to the load data processing unit (the D-side system), and the information sent by the A-side system to the D-side system is m...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for constructing a moment dispatch list suitable for the SpaceWire network. The method comprises the steps that firstly periodic time-triggered messages are ranked, then the moment dispatch list format is initialized, finally transmission moments of the time-triggered messages are allocated according to transmission moment strategies until the transmission moments of all the time-triggered messages are planed, and the moment dispatch list is obtained through construction. Compared with an event-triggered SpaceWire network dispatching method, the SpaceWire network dispatching method maintains characteristics of simplicity and flexibility of event-triggered dispatching, and guarantees determinacy of data transmission delay through the time-triggered mode.

Description

Technical field [0001] The present invention relates to a method for constructing a time schedule, and more particularly, to a method for constructing a time schedule suitable for a SpaceWire network. The constructed time schedule can schedule the SpaceWire network triggered by time, which belongs to the field of spaceborne aviation communication technology. Background technique [0002] The SpaceWire bus is a serial, high-speed, point-to-point, full-duplex data network standard proposed by the European Space Agency (ESA), which is used for high-speed data transmission between modern spaceborne equipment. Its predecessor was IEEE 1355~1995. It was formally implemented by ESA in 2003. After three revisions, the latest version of the specification ECSS-E-ST-50-12C was released in July 2008. The SpaceWire bus has the advantages of high communication rate, strong fault tolerance, flexible topology, etc., which can well meet the needs of today's space missions, and has received the a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04L12/407
Inventor 何锋韩煜王琪代真熊华钢
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap