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.