Wireless Sensor Integration for Structural Health Monitoring
An extension sensor board is designed, developed, and calibrated to meet the requirements for structur al vibration monitoring and modal identification.The extension sensor board has 3 axes of accelerometers in three directions, 8 Extendable ADC, and a temperature sensor.Software components have been implemen ted within the Tiny OS operating system to provide a flexible software platform and scalable performance for structural health monitoring applications.The self-developed extension sensor boards are then integrated with the IRIS basic wireless nodes, forming a scalable wireless sensor network (WSN).Its performance is experi mentally investigated through dynamic tests of an in-house reduced-scale cable-stayed bridge model.The prototype WSN is deployed on the bridge model with 3 nodes in a single-hop network.The Flooding Time Synchronization Protocol (FTSP) is chosen to realize time synchronization in sampling software.Wired coun terparts and finite element analysis are also used in this paper to verify the accuracy of WSN testing.The ex perimental results demonstrate the feasibility of wireless sensing technology in civil engineering structural health monitoring applications.
Chengyin Liu Xianyin He
Harbin Institute of Technology Shenzhen Graduate School, Shenzhen, China
国际会议
哈尔滨
英文
731-738
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）