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A Novel Self-adaptive Circuit Design Technique Based on Evolvable Hardware 被引量:1
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作者 Jun-Bin Zhang Jin-Yan Cai +1 位作者 Ya-Feng Meng Tian-Zhen Meng 《International Journal of Automation and computing》 EI CSCD 2020年第5期744-751,共8页
Since traditional fault tolerance methods of electronic systems are based on redundant fault tolerance technique,and their structures are fixed when circuits are designed,the self-adaptive ability is limited.In order ... Since traditional fault tolerance methods of electronic systems are based on redundant fault tolerance technique,and their structures are fixed when circuits are designed,the self-adaptive ability is limited.In order to solve these problems,a novel circuit self-adaptive design technique based on evolvable hardware(EHW)is proposed.It features robustness,self-organization and self-adaption.It can be adapted to a complex environment through dynamic configuration of the circuit.In this paper,the proposed technique simulated.The consumption of hardware resources and the number of convergence iterations researched.The effectiveness and superiority of the proposed technique are verified.The designed circuit has the ability of resistible redundant-state interference(RRSI).The proposed technique has a broad application prospect,and it has great significance. 展开更多
关键词 Circuit design self-adaptive design redundant fault tolerance technique evolvable hardware(EHW) evolutionary algorithms(EA)
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Reliability and safety analysis of redundant vehicle management computer system 被引量:13
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作者 Shi Jian Meng Yixuan +2 位作者 Wang Shaoping Bian Mengmeng Yan Dungong 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2013年第5期1290-1302,共13页
Redundant techniques are widely adopted in vehicle management computer (VMC) to ensure that VMC has high reliability and safety. At the same time, it makes VMC have special characteristics, e.g., failure correlation... Redundant techniques are widely adopted in vehicle management computer (VMC) to ensure that VMC has high reliability and safety. At the same time, it makes VMC have special characteristics, e.g., failure correlation, event simultaneity, and failure self-recovery. Accordingly, the reliability and safety analysis to redundant VMC system (RVMCS) becomes more difficult. Aimed at the difficulties in RVMCS reliability modeling, this paper adopts generalized stochastic Petri nets to establish the reliability and safety models of RVMCS. Then this paper analyzes RVMCS oper- ating states and potential threats to flight control system. It is verified by simulation that the reli- ability of VMC is not the product of hardware reliability and software reliability, and the interactions between hardware and software faults can reduce the real reliability of VMC obviously. Furthermore, the failure undetected states and false alarming states inevitably exist in RVMCS due to the influences of limited fault monitoring coverage and false alarming probability of fault mon- itoring devices (FMD). RVMCS operating in some failure undetected states will produce fatal threats to the safety of flight control system. RVMCS operating in some false alarming states will reduce utility of RVMCS obviously. The results abstracted in this paper can guide reliable VMC and efficient FMD designs. The methods adopted in this paper can also be used to analyze other intelligent systems' reliability. 展开更多
关键词 Failure transmission Fault monitoring detection Generalized stochastic Petrin ets Redundant technique Vehicle management computer
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