Structural Health Monitoring using WifiPhones

The instrumentation of a building civil structures is a practice that enable the measurements of some variations on the structure's dynamics properties, these variations, if they were found, could have relation with some changes in the structure's stiffness matrix, which are associated with some possible structural damages that could happened after some seismic event can occur. In this paper we design a wireless sensor network using smartphone as sensor node and its internal accelerometers and to collect data, which could be used to monitor the dynamic properties of a civil structure. The use of smartphone could reduce solution implementation costs, and at the same time ensuring the integrity and speed of data collection. We evaluated a monitoring WifiPhone network using the Low Energy Adaptive Clustering Hierarchy (LEACH) protocol.