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福岛核电站危机使核电安全成为全球性的话题,作为核电站"神经中枢"的全厂数字化仪表控制系统采用先进的更加安全的DCS控制系统成为新的趋势。Mesh网络脱胎于无线Mesh网络,是一种多跳的、具有自组织、自愈合、高健壮性的网络结构,把这一结构模型应用到核电站的DCS控制系统中,能够进一步提高核电站控制系统的安全可靠性,提高核电站的运营安全。本文通过对美国Foxboro公司的基于Mesh网络的I/A series控制系统在方家山核电站中的应用研究,说明采用Mesh网络技术的DCS控制系统的安全可靠性。 相似文献
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The stability of impulsive fractional-order systems is discussed.A new synchronization criterion of fractional-order chaotic systems is proposed based on the stability theory of impulsive fractional-order systems.The synchronization criterion is suitable for the case of the order 0 q ≤ 1.It is more general than those of the known results.Simulation results are given to show the effectiveness of the proposed synchronization criterion. 相似文献
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Generalized projective synchronization of fractional-order complex networks with nonidentical nodes
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<正>This paper investigates the synchronization problem of fractional-order complex networks with nonidentical nodes. The generalized projective synchronization criterion of fractional-order complex networks with order 0 < q < 1 is obtained based on the stability theory of the fractional-order system.The control method which combines active control with pinning control is then suggested to obtain the controllers.Furthermore,the adaptive strategy is applied to tune the control gains and coupling strength.Corresponding numerical simulations are performed to verify and illustrate the theoretical results. 相似文献
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基于CAN总线和智能控制技术,设计了一种基于CAN总线的火灾实时监控报警系统。本设计采用主从式结构。主节点具有液晶显示功能;从节点负责温度、气体浓度采集并具有联动灭火功能。本系统与传统火灾监控系统相比具有突出的可靠性、实时性和灵活性,具有较高的应用价值。 相似文献
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