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SpaceWire总线是专为空间应用设计的一种高速的星载总线标准,是当前和未来的空间任务数据处理系统的基本架构。然而对与SpaceWire总线网络实时性性能的研究仍不完备,无法保证总线用于可靠传输实时性要求高的关键控制信息。故提出一种基于虫洞路由网络传输建模的SpaceWire总线网络实时性性能分析计算方法。分析和仿真结果为实时传输的SpaceWire总线网络的设计提供了理论依据。
The SpaceWire bus is a high-speed on-board bus standard designed for space applications and is the basic architecture for today’s and tomorrow’s space mission data processing systems. However, research on the real-time performance of the SpaceWire bus network is still incomplete, and the bus can not be used to reliably transmit the critical control information with high real-time requirements. Therefore, this paper proposes a real-time performance analysis and calculation method of SpaceWire bus network based on wormhole routing network transmission modeling. The analysis and simulation results provide a theoretical basis for the design of SpaceWire bus network for real-time transmission.