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首页> 外文会议>International ocean and polar engineering conference;International Society of Offshore and Polar Engineers >An Efficient Energy Management Scheme for Wireless Sensor Network-based Structural Health Monitoring System Using On-Site Earthquake Early Warning System and Wake-on Radio
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An Efficient Energy Management Scheme for Wireless Sensor Network-based Structural Health Monitoring System Using On-Site Earthquake Early Warning System and Wake-on Radio

机译：基于现场地震预警系统和唤醒无线电的基于无线传感器网络的结构健康监测系统的高效能源管理方案

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摘要

The ability to provide a stable and durable energy supply for sensing nodes in a wireless sensors network (WSN) is an important research issue for WSNs in structural health monitoring (SHM) systems. Furthermore, a common approach to reduce energy consumption of sensors in a WSN is having control sensors periodically enter a low-power mode or sleep state. This, however, is challenging to implement in large-scale WSNs due to the need for faultless time synchronization. In practice, the sampling process will be delayed if a sensor node receives a sampling command but the node remains in listening-time cycle. Hence, the capabilities of external-radio triggering can improve stability and durability when integrated with a peripheral low-power circuit attached to sensing nodes. If sensors are in a low-power mode or sleep state, an effective approach is to transmit a wake-up command when specific start-up conditions are met to quickly awaken sensing nodes and work wirelessly. The aim of this work is to develop an efficient energy management scheme for a WSN-based SHM system by integrating an on-site earthquake early warning system and wake-on radio. A coordinator is integrated with WSN gateways and employed to link and synchronize all sensing nodes in advance through seismic prediction and radio-triggering technology. The simulation results reveal that the average power consumed was measured at about 350 μA for sensing nodes. Such a sensor will be more effective in measuring structural responses after an earthquake by increasing available sleep time, thereby saving energy and extending the life of such a wireless sensing system.
机译：为无线传感器网络（WSN）中的传感节点提供稳定，持久的能量供应的能力是结构健康监控（SHM）系统中WSN的重要研究课题。此外，减少WSN中传感器能量消耗的常用方法是使控制传感器定期进入低功耗模式或睡眠状态。但是，由于需要无误的时间同步，因此在大规模WSN中实现这一点具有挑战性。实际上，如果传感器节点接收到采样命令，但该节点仍处于侦听时间周期，则采样过程将被延迟。因此，当与连接到传感节点的外围低功耗电路集成时，外部无线电触发的功能可以提高稳定性和耐用性。如果传感器处于低功耗模式或睡眠状态，则一种有效的方法是在满足特定的启动条件时发送唤醒命令，以快速唤醒传感节点并进行无线工作。这项工作的目的是通过集成现场地震预警系统和唤醒无线电，为基于WSN的SHM系统开发有效的能源管理方案。协调器与WSN网关集成在一起，并通过地震预测和无线电触发技术预先用于链接和同步所有传感节点。仿真结果表明，感测节点的平均功耗约为350μA。通过增加可用的睡眠时间，这样的传感器将在测量地震后的结构响应方面更加有效，从而节省了能量并延长了这种无线传感系统的寿命。

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