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首页> 外文会议>IEEE International Conference on Industrial Informatics >Modelling and Synchronization of Pulse-Coupled Non-identical Oscillators for Wireless Sensor Networks
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Modelling and Synchronization of Pulse-Coupled Non-identical Oscillators for Wireless Sensor Networks

机译：无线传感器网络中脉冲耦合非相同振荡器的建模与同步

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Time synchronization in wireless sensor networks,aiming to provide a common sense of timing among distributed sensor nodes, is a key enabling technology for many applications, such as collaborative condition monitoring, time-of-flight localization and underwater navigation and tactical surveillance. In order to solve the challenges of the manufacturing tolerance and working condition variations in any real-world environments, a novel state-space model for pulse-coupled non-identical oscillators is proposed to model a realistic clock oscillator with nonidentical and time-varying frequency. A state feedback correction, referred to as hybrid coupling mechanism, is also proposed to ensure the system move into steady state, thus achieving time synchronization in wireless sensor networks. Furthermore, the intensive simulations of single-hop wireless sensor networks have been carried out to evaluate the performance of proposed pulsecoupled non-identical oscillators. It is shown that a partially connected wireless network consisting of 50 non-identical pulsecoupled oscillators can achieve the synchronization with the precision of $40us.$
机译：无线传感器网络中的时间同步旨在在分布式传感器节点之间提供一种通用的定时感，是许多应用（例如协作状态监视，飞行时间本地化以及水下导航和战术监视）中的关键启用技术。为了解决在任何现实环境中制造公差和工作条件变化的挑战，提出了一种用于脉冲耦合非相同振荡器的新型状态空间模型，以对具有不同频率和时变频率的真实时钟振荡器进行建模。 。还提出了一种状态反馈校正，称为混合耦合机制，以确保系统进入稳定状态，从而实现无线传感器网络中的时间同步。此外，已经对单跳无线传感器网络进行了深入的仿真，以评估所提出的脉冲耦合非相同振荡器的性能。结果表明，由50个不同的脉冲耦合振荡器组成的部分连接的无线网络可以实现同步，精度为$ 40us。

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