CAJ | 학술논문

随着星载总线技术的发展,SpaceWire在国内外航天任务中的应用越来越广泛,SpaceWire网络中的节点数也越来越多。在SpaceWire网络中,如果没有对各源端节点速率进行合理规划,在传输过程容易出现丢失数据包的现象。根据SpaceWire路由的特点,在多个源端节点共享同一个路由器输出端口情况下,给出了各源端节点原始数据速率、源端节点链路速率和路由器输出端口链路速率之间的约束条件,在SpaceWire数据包传输路径确定的情况下,可根据该速率约束条件迅速判断SpaceWire网络中各节点之间的数据传输是否合理可行。
수착성재총선기술적발전,SpaceWire재국내외항천임무중적응용월래월엄범,SpaceWire망락중적절점수야월래월다。재SpaceWire망락중,여과몰유대각원단절점속솔진행합리규화,재전수과정용역출현주실수거포적현상。근거SpaceWire로유적특점,재다개원단절점공향동일개로유기수출단구정황하,급출료각원단절점원시수거속솔、원단절점련로속솔화로유기수출단구련로속솔지간적약속조건,재SpaceWire수거포전수로경학정적정황하,가근거해속솔약속조건신속판단SpaceWire망락중각절점지간적수거전수시부합리가행。
With the development of the Spaceborn bus technology,SpaceWire is used in more and more space missions of domestic and foreign,and the nodes are more and more in the SpaceWire network. But in the network of SpaceWire,if the link speed of the source node is not particularly planned,there will appear the phenomenon of packet loss. According to the features of SpaceWire router,at the condition of multi-nodes sharing only one output of the router,we gave the constraint con-dition about the speed of raw data,the link speed of node and the output speed of router. If the transmission path is deter-mined,according to this constraint condition, we can quickly determine whether the way of data transmission without loss packets is in reason.