CAJ | 학술논문

为满足航天器有效载荷间高速数据多路传输未来发展和空间抗辐射的需求, 研究了一种应用于SpaceWire路由器动态部分重构的容错技术。在SpaceWire总线标准网络层分析的基础上, 对cell矩阵无阻塞路由增添HanMing编码实现纠一检二, 当检测出大于一个错误不能纠正时, 采用局部重构的方式对有误的单个cell单元进行三重冗余重构, 同时采用Partition Pin来代替传统的总线宏作为静态模块和动态模块的传输枢纽, 并对容错前后路由器的资源和延时时间进行了评估和比较。实验结果表明, 比将整个路由cell 矩阵三模冗余, 该方法能够节约硬件资源和减少延迟时间。
위만족항천기유효재하간고속수거다로전수미래발전화공간항복사적수구, 연구료일충응용우SpaceWire로유기동태부분중구적용착기술。재SpaceWire총선표준망락층분석적기출상, 대cell구진무조새로유증첨HanMing편마실현규일검이, 당검측출대우일개착오불능규정시, 채용국부중구적방식대유오적단개cell단원진행삼중용여중구, 동시채용Partition Pin래대체전통적총선굉작위정태모괴화동태모괴적전수추뉴, 병대용착전후로유기적자원화연시시간진행료평고화비교。실험결과표명, 비장정개로유cell 구진삼모용여, 해방법능구절약경건자원화감소연지시간。
In order to meet the needs of high-speed multiplexing of data in aerospace applications and space radiation, this paper presented a dynamic partial reconfiguration fault-tolerant technology applied in the SpaceWire router. Based on the analysis of SpaceWire bus standard network layer, it added HanMing coding to the cell matrix non-blocking routing to achieve correct one error and detect two errors. If there was more than one error, the single error cell would be reconfigured by triple-modular redundancy, it used which Partition Pin as transmission hub between static modules and dynamic modules instead of bus macro. At last, assessed and compared the resources and time delay of the router before and after the fault-tolerant. The experiment result demonstrates that, compared with three module redundancy for the entire cell matrix, the method can save hardware resource and reduce the delay time.