TY - GEN
T1 - Wireless Loose Bolt Detection with Multiple Battery-free Backscatter Sensors
AU - Iwasaki, Tomoya
AU - Tokumasu, Osamu
AU - Mitsugi, Jin
N1 - Funding Information:
This work includes the results of the research and development for expanding radio resources (JPJ000254) in FY2022 of the Ministry of Internal Affairs and Communications.
Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - This paper proposes a loose bolt detection system with battery-free wireless sensors based on backscatter communication. Loose bolt detection has been performed using wired or optical sensors. However, wired sensors demand temporary attachment of sensors and the routing of wires. Optical sensors demand precise alignment and the line of sight to the measurement points. The proposed backscatter system essentially eliminates those problems and can be used even when the target machine or structures are in their operation if the backscatter sensors are implanted to the target structure. On the other hand, the proposed system involves the challenges of data synchronization and the limited bandwidth. In this study, a prototype wireless loose bolt detection system based on transmittance function and damage index is developed and is comparatively evaluated with wired accelerometers by a series of experiments. The data synchronization problem was tackled by preprocessing of the collected data. It is also revealed that sufficient bandwidth in the wireless communication channels is important for accurate detection.
AB - This paper proposes a loose bolt detection system with battery-free wireless sensors based on backscatter communication. Loose bolt detection has been performed using wired or optical sensors. However, wired sensors demand temporary attachment of sensors and the routing of wires. Optical sensors demand precise alignment and the line of sight to the measurement points. The proposed backscatter system essentially eliminates those problems and can be used even when the target machine or structures are in their operation if the backscatter sensors are implanted to the target structure. On the other hand, the proposed system involves the challenges of data synchronization and the limited bandwidth. In this study, a prototype wireless loose bolt detection system based on transmittance function and damage index is developed and is comparatively evaluated with wired accelerometers by a series of experiments. The data synchronization problem was tackled by preprocessing of the collected data. It is also revealed that sufficient bandwidth in the wireless communication channels is important for accurate detection.
KW - accelerometer
KW - backscatter communication
KW - battery-free sensor
KW - loose bolt detection
KW - vibration analysis
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U2 - 10.1109/SENSORS52175.2022.9967294
DO - 10.1109/SENSORS52175.2022.9967294
M3 - Conference contribution
AN - SCOPUS:85144050442
T3 - Proceedings of IEEE Sensors
BT - 2022 IEEE Sensors, SENSORS 2022 - Conference Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE Sensors Conference, SENSORS 2022
Y2 - 30 October 2022 through 2 November 2022
ER -