A Practical Wireless Structural Health Monitoring System using Intelligent Sensor Network

In Hong Kong, the conditions of a large number of old tenement buildings, long bridges and skyscrapers are critical for public safety. We have designed a practical structural health monitoring system using intelligent sensor networks. The system utilizes radio-triggered and vibration-triggered wakeup units to wake up the node from the sleep mode when necessary, and adopts ‘wireless synchronization, on-board storage’ to obtain highly synchronized sensing data. In addition, many existing centralized and computationally intensive structural health monitoring algorithms have been tailored and embedded in the system. Our system has been deployed on many real infrastructures such as the CCTV tower in Beijing and Hedong Bridge in Guangzhou.