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Design and reliability, availability, maintainability, and safety analysis of a high availability quadruple vital comput
Abstract：With the development of high-speed railways in China,more than 2000 high-speed trains will be put into use.Safety and efficiency of railway transportation is increasingly important.We have designed a high availability quadruple vital computer (HAQVC) system based on the analysis of the architecture of the traditional double 2-out-of-2 system and 2-out-of-3 system.The HAQVC system is a system with high availability and safety,with prominent characteristics such as fire-new internal architecture,high efficiency,reliable data interaction mechanism,and operation state change mechanism.The hardware of the vital CPU is based on ARM7 with the real-time embedded safe operation system (ES-OS).The Markov modeling method is designed to evaluate the reliability,availability,maintainability,and safety (RAMS) of the system.In this paper,we demonstrate that the HAQVC system is more reliable than the all voting triple modular redundancy (AVTMR) system and double 2-out-of-2 system.Thus,the design can be used for a specific application system,such as an airplane or high-speed railway system. 作者： Author： Ping TAN[1] Wei-ting HE[1] Jia LIN[1] Hong-ming ZHAO[2] Jian CHU[1] 作者单位： State Key Laboratory of Industrial Control Technology & Institute of Cyber-Systems and Control Zhejiang University, Hangzhou 310027, ChinaZhejiang Insigma-Supcon Co., Ltd., Hangzhou 310013, China 期 刊： 浙江大学学报（英文版）（A辑：应用物理和工程） ISTICEISCI Journal： Journal of Zhejiang University Science A 年，卷(期)： 2011, 12(12) 分类号： U28 Keywords： Fault tolerant High availability quadruple vital computer (HAQVC) Reliability availability maintainability andsafety (RAMS) 机标分类号： TP3 V47 机标关键词： reliability Design computer system high availability interaction mechanism operation system application system modeling method state change traditional development based real-time analysis Markov design paper China RAMS data 基金项目： the National Key Technology R&D Program of China【Design and reliability, availability】相关文章：
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