Abstract
Many vibration monitoring methods including remote monitoring are proposed for structural diagnostics or damage identification. And vibration control has been studied in order to maintain or improve structural performance. It is expected that the combination of remote vibration monitoring and vibration control have possibility to establish reasonable structural maintenance system. A low-cost remote displacement measuring system using PC camera and TCP/IP network is developed in this study. Property of the measuring system is examined in vibration measurement test. Moreover, semi-active vibration control experiments are performed on steel tower model by using proposed displacement system. From results of experiments, the remote vibration measuring system has basic applicability as sensor system of semi-active vibration control on tower structures.