Guarantee of Information Delivery in the Spacecraft Onboard Network Based on the SpaceWire Interface
2020 ◽
Vol 7
(4)
◽
pp. 83-89
Keyword(s):
Nowadays SpaceWire is regarded as a perspective aerospace data transmission interface standard. This paper gives an analysis of a guaranteed information delivery of SpaceWire networks. The result of the analysis showed key problems that did not allow using this standard in real-time networks. A method was developed and proposed to guarantee the information delivery in the SpaceWire network based on scheduled routing. Tests using a software model of the modified network were performed. The results obtained confirmed the efficiency of the method used to ensure the guarantee of information delivery in the network. It is shown that a network with a modified protocol stack meets real-time requirements.