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Title |
Wireless Bridge Health Monitoring System for Long-term Measurement of Small-sized Bridges
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Authors |
권태호(Tae-Ho Kwon) ; 정규산(Kyu-San Jung) ; 박기태(Ki-Tae Park) ; 김병철(Byeong-Cheol Kim) ; 김재환(Jae-Hwan Kim) |
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DOI |
https://doi.org/10.11112/jksmi.2023.27.4.86 |
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Keywords |
교량 구조물; 중소교량; 계측모니터링; 무선 기반 계측시스템; 장기 계측 Bridge structures; Small-sized bridges; Structural health monitoring system; Wireless-based measurement system; Long-term measurement |
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Abstract |
A bridge health monitoring technology is under development for the safety management of aged bridges. The bridge health monitoring technology has been developed mainly for single bridge management at a large scale, so it uses wire-based systems for power supply and data transfer. However, the wire-based systems need to be improved for the sporadically distributed small-sized bridges on local roads. This study proposed a wireless structural health monitoring system for small-sized bridges. The proposed monitoring system overcomes the limitations of wired systems by providing wireless power through solar power and utilizing LTE technology to transmit measurement data. In addition, a remote control system and power management plan were proposed to ensure the stability of the bridge measurement system. The proposed measurement system was installed on 32 bridges on fields and verified the operability by collecting 80.6% of measurement data for one year. The proposed system can support the health monitoring of aged bridges on local roads.
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