TY - GEN
T1 - A wireless smart sensor network based on multi-function interferometric radar sensors for structural health monitoring
AU - Gu, Changzhan
AU - Rice, Jennifer A.
AU - Li, Changzhi
PY - 2012
Y1 - 2012
N2 - Structural health monitoring calls for sensors that are low-cost, low-profile, and power-constraint. It also requires the sensors to form a network to accurately monitor the low-frequency response that often occurs in many civil structures such as long-span bridges. However, the existing sensors are either not practical for wireless implementation, does not have enough accuracy, or are not cost-effective. This paper presents a multi-function interferometric radar sensor that can easily form a smart sensor network by the merit of the ZigBee mesh networking function integrated in the sensor. The radar sensor, integrated with a micro-controller, works in the arctangent-demodulated interferometric mode to monitor the structure's displacement with an accuracy of sub-millimeter. Experimental results show that the smart sensor network using the multi-function radar sensors serves as a good alternative for monitoring structural health.
AB - Structural health monitoring calls for sensors that are low-cost, low-profile, and power-constraint. It also requires the sensors to form a network to accurately monitor the low-frequency response that often occurs in many civil structures such as long-span bridges. However, the existing sensors are either not practical for wireless implementation, does not have enough accuracy, or are not cost-effective. This paper presents a multi-function interferometric radar sensor that can easily form a smart sensor network by the merit of the ZigBee mesh networking function integrated in the sensor. The radar sensor, integrated with a micro-controller, works in the arctangent-demodulated interferometric mode to monitor the structure's displacement with an accuracy of sub-millimeter. Experimental results show that the smart sensor network using the multi-function radar sensors serves as a good alternative for monitoring structural health.
KW - Doppler radar
KW - Structural health monitoring
KW - displacement measurement
KW - wireless sensor network
UR - http://www.scopus.com/inward/record.url?scp=84860469661&partnerID=8YFLogxK
U2 - 10.1109/WiSNet.2012.6172140
DO - 10.1109/WiSNet.2012.6172140
M3 - Conference contribution
AN - SCOPUS:84860469661
SN - 9781457711541
T3 - RWW 2012 - Proceedings of the 2012 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNet 2012
SP - 33
EP - 36
BT - RWW 2012 - Proceedings of the 2012 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNet 2012
T2 - 2012 6th IEEE Radio and Wireless Week, RWW 2012 - 2012 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNet 2012
Y2 - 15 January 2012 through 18 January 2012
ER -