C04 マイコンによる構造物の応急損傷発生検知システムの開発(OS4 建築・都市のモニタリングとリスク制御)

概要

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This paper proposes the rapid damage detection system utilizing the dsPIC micro-controller and the short time period fast Fourier transform (SFFT). The proposed damage detection system has the two types of the sensors. One is the accelerometer for detecting the damage. The other is the vibration switch for using the trigger system.The proposed damage detection system can automatically provide information about the safety of the structure under an earthquake in real time. The proposed damage detection methodology also provides useful information for implementing the advanced structural health monitoring system. First of all, the capability of the vibration switch, accelerometer and dsPlC micro-controller are experimentally investigated. Then, the validity of the proposed methodology is demonstrated by conducting computer simulations and small scale model experiments.
2009-09-01