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[...] also an application programming interface (API) to integrate the WSN system with the data processing/analysis applications. The latter enable to infer about the reaction of the monitored structure to vibrations (natural or external excitations). WSN Architecture The proposed SHM system aims at sampling several accelerometers placed at different locations in a structure, in a synchronized fashion. Sampled data is to be stored in each Sensing Node until it is retrieved by a central node for processing. To enable the analysis [...]
[...] as a tool to evaluate and understand the behaviour of the developed prototype for operational modal analysis of civil engineering structures. The laboratory specimen consists in an inverted wooden pendulum with 1.70 m height built specially for testing purposes in the civil engineering laboratory at the University of Minho. The pendulum was designed in such a way that its dynamic properties replicates the properties of the Mogadouro´s Clock Tower, an old masonry tower in the northern part of Portugal. Testing COTS technologies For comparison purposes, both [...]
[...] and off-the-shelf WSN technologies that are able to fulfill some most demanding requirements of these applications, which can span from critical physical infrastructures (e.g. bridges, tunnels, mines, energy grid) to historical buildings or even industrial machinery and vehicles. Low-power and low-cost yet extremely sensitive and accurate accelerometer and signal acquisition hardware and stringent time synchronization of all sensors data are just examples of the requirements imposed by most of these applications. [...]
[...] Modal Monitoring of Ancient Structures using Wireless Technology (Published in International Modal Analysis Conference & Exposition on Structural Dynamics - IMAC-XXVIII, Jacksonville, Florida USA, 2010) Monuments' Structural Monitoring – phase 1 technical report (Under the joint collaboration project on Monuments' Structural Monitoring (MSM) between CISTER-ISEP and ISISE-U. Minho) A Wireless Sensor Network Platform for Structural Health Monitoring: enabling accurate and synchronized measurements through COTS+custom-based design (Invited paper at the workshop "