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考虑乘客出行容忍度的城市轨道交通网络的连通可靠性分析 被引量:6
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作者 刘杰 彭其渊 +1 位作者 陈锦渠 殷勇 《交通运输工程与信息学报》 2019年第4期134-140,共7页
城市轨道交通网络的连通可靠性对乘客的出行和网络的正常运营具有重要意义,为衡量城市轨道交通网络的连通可靠性,提出容忍系数确定车站间的可容忍路径.以车站间的可容忍路径数目衡量车站间的连通可靠性,并据此计算车站和网络的连通可靠... 城市轨道交通网络的连通可靠性对乘客的出行和网络的正常运营具有重要意义,为衡量城市轨道交通网络的连通可靠性,提出容忍系数确定车站间的可容忍路径.以车站间的可容忍路径数目衡量车站间的连通可靠性,并据此计算车站和网络的连通可靠性.以成都地铁为例,运用运营数据分析了考虑车站权重和不考虑车站权重时成都地铁网络的连通可靠性.通过计算和分析,确定了连通可靠性最强和最弱的车站并分析了成都地铁在不同时间段、不同容忍系数下的连通可靠性.结果表明,当容忍系数小于1.6时,容忍系数对成都地铁网络的连通可靠性影响很大. 展开更多
关键词 城市轨道交通 网络连通可靠性 容忍系数 自动售检票系统(AFC)数据
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An efficient reliability evaluation method for industrial wireless sensor networks 被引量:4
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作者 乐英高 李建清 +1 位作者 樊鹤红 秦钦 《Journal of Southeast University(English Edition)》 EI CAS 2016年第2期195-200,共6页
Aimed at the difficulties in accurately, comprehensively and systematically evaluating the reliability of industrial wireless sensor networks (WSNs), a time-evolving state transition-Monte Carlo (TEST-MC) evaluati... Aimed at the difficulties in accurately, comprehensively and systematically evaluating the reliability of industrial wireless sensor networks (WSNs), a time-evolving state transition-Monte Carlo (TEST-MC) evaluation method and a novel network function value representation method are proposed to evaluate the reliability of the IWSNs. First, the adjacency matrix method is used to characterize three typical topologies of WSNs including the mesh network, tree network and ribbon network. Secondly, the network function value method is used to evaluate the network connectivity, and the TEST-MC evaluation method is used to evaluate network reliability and availability. Finally, the variations in the reliability, connectivity and availability of these three topologies are presented. Simulation results show that the proposed method can quickly analyze the reliability of the networks containing typical WSN topologies, which provides an effective method for the comprehensive and accurate evaluation of the reliability of WSNs. 展开更多
关键词 wireless sensor networks topology structure reliability evaluation CONNECTIVITY AVAILABILITY
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