Ultra-Wideband Communication for Wireless Sensor Networks in Structural Health Monitoring
Wireless sensor network(WSN)has shown great promise for structural health monitoring(SHM)of buildings and infrastructure in both severe loading events and progressively deteriorating environmental conditions.To collect near real-time measurements for SHM,it is essential to provision reliable highspeed data transmission among sensor nodes.However,in a massively distributed sensor network,the transmission rate and reliability are severely constrained by the limited power supplied by non-rechargeable batteries.These challenges call for an innovative communication paradigm as the enabling physical-layer air interface for WSNs envisioned for monitoring and diagnosing the structural health of civil engineering facilities.Ultra-wideband(UWB)technology emerges as such a competitive communication paradigm for SHM-oriented WSNs.By virtue of its large bandwidth,UWB signaling comes with many uniquely attractive features for SHM applications:potentially high data rates,robust and low power communications,resilience to multipath fading,immunity to electromagnetic interference,and capability to penetrate walls and ground.On the other hand,there has been barely any work on designing and assessing UWB systems under the unique radio channel characteristics of SHM WSNs.Toward filling this gap,this paper presents an overview of the technical challenges in employing UWB radios in sensory units in wireless SHM networks.Novel solutions are provided to cope with some critical issues,including UWB timing synchronization and UWB-based network medium access control for reliable and ultra-low-power communications.A proof-of-concept field test utilizing the Network for Earthquake Engineering Simulation(NEES)facility is discussed.
Natural and man-made hazards structural health monitoring ultra-wide band wireless sensor network
Yue Li Zhi Tian Jindong Tan
Department of Civil and Environmental Engineering,Michigan Technological University,Houghton,Michiga Department of Electrical and Computer Engineering,Michigan Technological University,Houghton,Michiga
国际会议
The World Forum on Smart Materials and Smart Structures Technology(SMSST07)(2007年世界智能材料与智能结构技术论坛)
重庆·南京
英文
2007-05-01（万方平台首次上网日期，不代表论文的发表时间）