Universal Wireless System for Bridge Health Monitoring

Since August 2010, Resensys wireless SenSpot tilt and strain sensors were deployed to monitor a highway bridge in Maryland. Similar installations were performed in bridges in the US, Canada, and Indonesia. Signal analyses concluded important observations about the response of the bridge bearings to change of temperature. In some instances, the change in the strain exceeded 30 microstrains, e.g., due to the bridge rehabilitation work. The decision parameters about the state of a structure were fused to produce the structural integrity knowledge to be used for predictive diagnostics. Using this method, the monitoring system can predict rupture, crack, yielding or generally any signals before the collapse of a structure or any member damage before it happens. Finally, Resensys is working with Analatom, Inc, and other third-party OEMs in the development of an Onboard SHM Data Aggregator Module (OSDAM) platform to manage and control access to multiple SHM Sensor Systems.