Department of Architectural Engineering, Yonsei University, Seoul 110-732, Korea.
Sensors (Basel). 2013 Jul 31;13(8):9774-89. doi: 10.3390/s130809774.
As wireless sensor network (WSN)-based structural health monitoring (SHM) systems are increasingly being employed in civil infrastructures and building structures, the management of large numbers of sensing devices and the large amount of data acquired from WSNs will become increasingly difficult unless systematic expressions of the sensor network are provided. This study introduces a practical WSN for SHM that consists of sensors, wireless sensor nodes, repeater nodes, master nodes, and monitoring servers. This study also proposes a symbolic and graphical representation scheme (SGRS) for this system, in which the communication relationships and respective location information of the distributed sensing components are expressed in a concise manner. The SGRS was applied to the proposed WSN, which is employed in an actual large-scale irregular structure in which three types of sensors (75 vibrating wire strain gauges, 10 inclinometers, and three laser displacement sensors) and customized wireless sensor nodes are installed. The application results demonstrate that prompt identification of sensing units and effective management of the distributed sensor network can be realized from the SGRS. The results also demonstrate the superiority of the SGRS over conventional expression methods in which a box diagram or tree diagram representing the ID of sensors and data loggers is used.
随着基于无线传感器网络（WSN）的结构健康监测（SHM）系统越来越多地应用于民用基础设施和建筑物结构，除非提供系统的传感器网络表达，否则管理大量的感测设备和从 WSN 获得的大量数据将变得越来越困难。本研究介绍了一种实用的 WSN 用于 SHM，它由传感器、无线传感器节点、中继节点、主节点和监控服务器组成。本研究还提出了一种针对该系统的符号和图形表示方案（SGRS），其中以简洁的方式表示分布式感测组件的通信关系及其各自的位置信息。SGRS 应用于所提出的 WSN，该 WSN 应用于实际的大型不规则结构中，其中安装了三种类型的传感器（75 个振弦应变计、10 个倾斜计和三个激光位移传感器）和定制的无线传感器节点。应用结果表明，从 SGRS 可以实现感测单元的快速识别和分布式传感器网络的有效管理。结果还表明，SGRS 优于传统的表示方法，传统的表示方法使用表示传感器和数据记录器 ID 的框图或树图。
