Assessing the value of alternative bridge health monitoring systems

2012 ◽  
pp. 782-789 ◽  
Author(s):  
M Pozzi ◽  
A Der Kiureghian
Keyword(s):  
Health Monitoring ◽  
Monitoring Systems ◽  
Bridge Health Monitoring ◽  
Health Monitoring Systems

Wavelet De-noising of GNSS Based Bridge Health Monitoring Data

2014 ◽  
Vol 8 (4) ◽  
Author(s):  
Oluropo Ogundipe ◽  
Jae Kang Lee ◽  
Gethin Wyn Roberts
Keyword(s):  
Wavelet Transform ◽  
Health Monitoring ◽  
Three Dimensional ◽  
Monitoring Systems ◽  
Accurate Information ◽  
Bridge Structure ◽  
Bridge Health Monitoring ◽  
Cable Stayed Bridge ◽  
Multiple Paths ◽  
Health Monitoring Systems

AbstractGNSS signal multipath occurs when the GNSS signal reflects of objects in the antenna environment and arrives at the antenna via multiple paths. A bridge environment is one that is prone to multipath with the bridge structure, as well as passing vehicles providing static and dynamic sources of multipath. In this paper, the Wavelet Transform (WT) is applied to bridge data collected on the Machang cable stayed bridge in Korea. The WT algorithm was applied to the GNSS derived bridge defection data at the mid-span. Up to 41% improvement in RMS was observed afterwavelet shrinkage de-noisingwas applied.Application of this algorithm to the torsion data showed significant improvement with the residual average and RMS decreased by 40% and 45% respectively. This method enabled the generation of more accurate information for bridge health monitoring systems in terms of the analysis of frequency, mode shape and three dimensional defections.

Dynamic Computation Offloading for Low-Power Wearable Health Monitoring Systems

2017 ◽  
Vol 64 (3) ◽  
pp. 621-628 ◽  
Author(s):  
Haik Kalantarian ◽  
Costas Sideris ◽  
Bobak Mortazavi ◽  
Nabil Alshurafa ◽  
Majid Sarrafzadeh
Keyword(s):  
Low Power ◽  
Health Monitoring ◽  
Computation Offloading ◽  
Monitoring Systems ◽  
Dynamic Computation ◽  
Health Monitoring Systems ◽  
Wearable Health Monitoring Systems
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