Time Synchronized Sensor Network with IEEE1588 for Vibration Measurement in Structural Health Monitoring of Railway System

Sensor network has become an important area of research and various new applications for remote sensing are expected to emerge. One of the promising applications is structural health monitoring of building or civil engineering structure and it often requires vibration measurement. For the vibration measurement via network, time synchronization is indispensable. This paper clarifies the importance of time synchronization of sensor network for vibration measurement. And the rationale of IEEE1588 precision time protocol is described. A distributed synchronized measurement system based on the IEEE1588 is presented in this paper and the test result are also introduced.