A Self-Health Monitoring System for a Wireless Sensor Network Used in Bridge Diagnosis
Haitao Xiao, Tansheng Li, Harutoshi Ogai · SICE Journal of Control Measurement and System Integration · 2012
For bridge diagnosis, the authors developed a wireless sensor network (WSN) to measure and gather the vibration data of bridges. In previous bridge diagnosis experiments, node failure and data packet loss occurred in the WSN, which caused some corruption in the collected data and hence the WSN could not be used to analyze the health status of the bridge. Furthermore, it was always difficult to determine the location of the nodes in order to ensure the link quality, when all the nodes of the WSN deployed for the first time. In this paper, a self-health monitoring system called distributed localized decision monitoring system (DLDMS) is presented to monitor the health of the WSN. Key features of the system include high detection accuracy, high responsiveness, and low energy consumption. Experimental data is given based on experiments at Kitakyushu in Japan.