针对空间辐射环境中比较容易发生的单粒子翻转事件 ,提出一种低成本的商用器件解决方案———单板双机嵌入式容错子系统。该子系统把两个相对独立的嵌入式 4 86单机通过现场可编程门阵列 (FPGA)耦合起来 ,双机通信和数据比对都通过FPGA来完成 ,同时通过数据比对发现和消除单粒子翻转 (SEU)所引起的错误。由于系统中应用了较多超大规模集成电路 ,系统非常紧凑 ,用单板就实现了一个容错子系统 Aiming at the single-event flip-flop in space radiation environment, a low-cost commercial device solution is proposed. The single-board dual-plane embedded fault-tolerant subsystem. The subsystem couples two relatively independent embedded MCUs through field programmable gate arrays (FPGAs). Both communication and data alignment are done through FPGA. At the same time, the single-chip flip (SEU) caused by the error. Due to the application of more VLSI systems in the system, the system is very compact, with a single board to achieve a fault-tolerant subsystem