Wireless Sensing for Bridge Health Monitoring

摘要

Bridge monitoring systems used in practice employ conventional cables to communicate sensor measurements to a centralized data acquisition unit. Cable based systems have high installation costs and leave wires vulnerable to ambient signal noise corruption. In addressing these inherent drawbacks, a modular wireless monitoring system is proposed. Such a system promises lower capital and installation costs noise simultaneously ensuring reliable communication between sensing units.A vibration-electric generator has been proposed to generate electricity from the vibrations of the bridge to power an acceleration. To assess the feasibility of this idea, a model of the power produced from the generator is presented. It is concluded that the output power would be sufficient to power an acceleration sensor. Wireless sensing is prosperous in bridge health monitoring.