基于光纤的SpaceWire节点设计  

Design of SpaceWire Nodes Based on Fiber Optics

作　　者：秦炜 冯凯强[2] QIN Wei;FENG Kaiqiang(Shanghai Vision Microsystems Co.,Ltd.,Shanghai 200000,China;Science and Technology Electronic Test&Measurement Laboratory,North University of China,Taiyuan 030051,China)

机构地区：[1]上海创景信息科技股份有限公司,上海200000 [2]中北大学电子测试技术国防科技重点实验室,太原030051

出　　处：《计算机测量与控制》2025年第3期287-294,329,共9页Computer Measurement &Control

摘　　要：为实现航天器各SpaceWire仿真子系统分布式部署的能力,并且降低仿真节点使用国外收发芯片的高昂成本,提出一种实现分布式SpaceWire仿真节点卡的设计方法,仿真节点卡能够实现SpaceWire节点间200 Mbps链路速率下的数据收发功能,并且通过使用多模光模块实现SpaceWire节点2000 m远距离传输,同时实现了多个SpaceWire仿真节点的分布式部署,利用FPGA可编程技术优势,以SpaceWire IP核为核心,降低了SpaceWire仿真节点的成本;通过仿真软件结合光纤采集卡对仿真节点卡进行了节点功能及光纤传输功能的验证;经实验测试仿真节点卡链路200 Mbps速率连接正常,数据收发稳定可靠,实现了分布式部署的能力、并大大降低了SpaceWire使用成本。In order to achieve the ability of distributed deployment of various SpaceWire simulation subsystems in spacecraft,and reduce the high cost of foreign transceiver chips for simulation nodes,a design for implementing a distributed SpaceWire simulation node card is proposed.With a link rate of 200 Mbps,the simulation node card can achieve data transmission and reception between SpaceWire nodes,and achieve long-distance transmission of SpaceWire nodes at a distance of 2000 m through multi-mode optical modules.Meanwhile,the distributed deployment of multiple SpaceWire simulation nodes is also achieved.By utilizing the advantages of FPGA programmable technology and SpaceWire IP core as the core,the cost of SpaceWire simulation nodes is reduced;The node and fiber transmission functions of the simulation node card are verified by combining simulation software with fiber optic acquisition card;After experimental testing,the results show that with a speed of 200 Mbps,the simulated node card link is connected normally,and the data transmission and reception are stable and reliable,achieving distributed deployment and greatly reducing the cost of SpaceWire usage.

关 键 词：SPACEWIRE IP核 光纤 仿真节点 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]