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为保证复杂电磁环境下嵌入式系统的安全运行,提出一种通用嵌入式系统在线故障自修复模型。基于ARM处理器和商业FPGA芯片实现原型试验系统,借鉴生物系统在遭受一定损伤时能自行康复的特点,结合仿生硬件领域中的内进化试验方法,在原型系统上设计重配置执行单元的门级冗余拓扑结构和自律控制单元的演化修复算法。利用马尔可夫模型评价系统的可靠性与稳态可用度。结果表明,在随机电磁损伤事件频繁发生并导致电路功能故障时,该系统能保持较高的可用度和安全性。
In order to ensure the safe operation of embedded systems in complex electromagnetic environment, a universal embedded system online fault self-healing model is proposed. Based on ARM processor and commercial FPGA chip prototype test system, draw lessons from the biological system can withstand some injury self-healing characteristics, combined with the bionic hardware in the field of evolutionary test methods, the prototype system design reconfiguration execution unit door Redundant Topology and Evolutionary Reconstruction Algorithm of Autonomous Control Unit. Evaluation of System Reliability and Steady State Availability Using Markov Model. The results show that the system can maintain high availability and safety when random electromagnetic damage events occur frequently and lead to circuit malfunction.