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Article

Multifunctional Smart Ball Sensor for Wireless Structural Health Monitoring in a Fire Situation

1
Department of Mechanical Engineering, Kyungpook National University, Daegu 41566, Korea
2
Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea
3
Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
4
Department of Architectural Engineering, Kyungpook National University, Daegu 41566, Korea
5
Department of Fire Protection Engineering, Pukyong National University, Busan 48513, Korea
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Sensors 2020, 20(15), 4328; https://doi.org/10.3390/s20154328
Received: 22 June 2020 / Revised: 29 July 2020 / Accepted: 1 August 2020 / Published: 3 August 2020
(This article belongs to the Section Remote Sensors)
A variety of sensor systems have been developed to monitor the structural health status of buildings and infrastructures. However, most sensor systems for structural health monitoring (SHM) are difficult to use in extreme conditions, such as a fire situation, because of their vulnerability to high temperature and physical shocks, as well as time-consuming installation process. Here, we present a smart ball sensor (SBS) that can be immediately installed on surfaces of structures, stably measure vital SHM data in real time and wirelessly transmit the data in a high-temperature fire situation. The smart ball sensor mainly consists of sensor and data transmission module, heat insulator and adhesive module. With the integrated device configuration, the SBS can be strongly attached to the target surface with maximum adhesion force of 233.7-N and stably detect acceleration and temperature of the structure without damaging the key modules of the systems even at high temperatures of up to 500 °C while ensuring wireless transmission of the data. Field tests for a model pre-engineered building (PEB) structure demonstrate the validity of the smart ball sensor as an instantly deployable, high-temperature SHM system. This SBS can be used for SHM of a wider variety of structures and buildings beyond PEB structures. View Full-Text
Keywords: fire-induced collapse; fire situation; pre-engineered building (PEB); smart ball sensor; structural health monitoring (SHM) fire-induced collapse; fire situation; pre-engineered building (PEB); smart ball sensor; structural health monitoring (SHM)
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MDPI and ACS Style

Kim, M.; Hwang, I.; Seong, M.; Choi, J.; Kim, M.; Lee, H.-D.; Shin, K.-J.; Son, H.; Sohn, H.; Choi, J.; Jeong, H.E.; Kwak, M.K. Multifunctional Smart Ball Sensor for Wireless Structural Health Monitoring in a Fire Situation. Sensors 2020, 20, 4328. https://doi.org/10.3390/s20154328

AMA Style

Kim M, Hwang I, Seong M, Choi J, Kim M, Lee H-D, Shin K-J, Son H, Sohn H, Choi J, Jeong HE, Kwak MK. Multifunctional Smart Ball Sensor for Wireless Structural Health Monitoring in a Fire Situation. Sensors. 2020; 20(15):4328. https://doi.org/10.3390/s20154328

Chicago/Turabian Style

Kim, Minsu, Insol Hwang, Minho Seong, Jaemook Choi, Myunggun Kim, Hee-Du Lee, Kyung-Jae Shin, Hungsun Son, Hoon Sohn, Junho Choi, Hoon Eui Jeong, and Moon Kyu Kwak. 2020. "Multifunctional Smart Ball Sensor for Wireless Structural Health Monitoring in a Fire Situation" Sensors 20, no. 15: 4328. https://doi.org/10.3390/s20154328

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