CAJ | 학술논문

为了使数字电路在产生故障失效后实现功能自动恢复,提高电路可靠性,基于演化硬件（EHW）原理建立了自修复数字电路模型,该模型主要包括微处理器和重配置电路2个部分。利用自修复数字电路模型实现无刷直流电机控制系统中的换相电路,并对换相电路进行了故障注入修复实验。深入分析了自修复数字电路模型对电路演化修复的影响,通过引入关键函数对自修复数字电路模型进行了改进。实验结果表明,当注入故障单元数小于总单元数的50%时,改进后的自修复数字电路模型修复率达到100%。因此,该模型能够对部分故障进行成功修复,改进的自修复数字电路模型降低了电路生成时间,提高了电路修复概率和速度。
위료사수자전로재산생고장실효후실현공능자동회복,제고전로가고성,기우연화경건（EHW）원리건립료자수복수자전로모형,해모형주요포괄미처리기화중배치전로2개부분。이용자수복수자전로모형실현무쇄직류전궤공제계통중적환상전로,병대환상전로진행료고장주입수복실험。심입분석료자수복수자전로모형대전로연화수복적영향,통과인입관건함수대자수복수자전로모형진행료개진。실험결과표명,당주입고장단원수소우총단원수적50%시,개진후적자수복수자전로모형수복솔체도100%。인차,해모형능구대부분고장진행성공수복,개진적자수복수자전로모형강저료전로생성시간,제고료전로수복개솔화속도。
In order to make the digital circuit to recover from faults and improve the reliability of digital circuit, a new self-repairing digital circuit model was proposed based on evolvable hardware(EHW). The commutator of brushless direct current motor (BDCM) is implemented with the self-repairing digital circuit model which includes a microprocessor and a reconfigurable circuit. A fault injection-reparation experiment was carried out in the model, and the effect of the presented model on repairing ability of the designed circuit was analyzed. Then, we improved the model to enhance the probability of repairing circuit by introducing key functions. The results show that selfrepairing digital circuit model can always recover from fault when ratio of fault units to total units is smaller than 50%. Therefore, the given model can repair circuits successfully when it is subjected to certain faults. It is concluded that the improved model can reduce the time of self-repairing and can raise the probability and speed of the repair.