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Sub-1 GHz Network-Based Wireless bridge-Monitoring System:Feature and Verification

Structural Durability & Health Monitoring 2021年第4期15卷 281-297页

作者： Li Hui Faress Hraib Mohammad Rahman Miguel Vicente Riyadh Hindi College of Engineering University of Louisiana at LafayetteLafayetteLA 70503USA ABNA Engineering St.LouisMO 63108USA Parks College of Engineering Aviation and TechnologySaint Louis UniversitySt.LouisMO 63103USA Department of Civil Engineering University of BurgosBurgos09001Spain

Traditional bridge monitoring systems often require wired connections between sensors,a data acquisition system,and data *** use of extension wires,conduits,and other costly accessories can dramatically increase the total cost of bridge *** the development of wireless technologies and the notable cost benefits,many researchers have been integrating wireless networks into bridge monitoring *** this study,a wireless bridge monitoring system has been developed based on the Sub-1 GHz *** main functional components of this system include sensors,wireless nodes,gateway and data *** nodes can convert analog signals obtained from the sensors to digital signals,then transmit the collected data to the gateway using the Sub1 GHz *** gateway receives and sorts data from different wireless nodes and then forwards these data to the data center *** collected data are processed in the data center using the data processing software developed in this *** order to validate the performance of the wireless system developed in this study,a steel girder bridge was monitored in the field during the concrete deck *** field results were also compared with the theoretical values obtained from finite element models to ensure the accuracy and reliability of the wireless *** results indicate that the wireless bridge monitoring system developed in this study is effective and *** Sub-1 GHz network can be a better solution for bridges with complicated site conditions because of the extended data transmission *** the power consumption can be controlled by using low-power consumption components,including the power control in software design can also dramatically reduce the system’s power consumption.

关键词： bridge monitoring wireless network bridge deck construction exterior girder rotation

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