Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : March 14, 2016 - March 15, 2016
Low-cost and low-power monitoring technologies are needed for an administrator of infrastructure to manage them safely and efficiently. Conventional inspection technologies are fundamentally depending on the inspectors' skills such as hammering and visual test, which demands much labor and financial cost. Acoustic emission (AE) techniques have the potential to detect quantitatively early-stage deteriorations of the infrastructure. We have been developed an innovative monitoring system with a wireless AE examination. In this monitoring system, AE signals are filtered and extracted as the AE parameters in the FPGA based sensor nodes. A sensor node has been equipped with a wireless interface and an energy harvesting module designed for 10 years maintenance-free operation. The AE parameters are subsequently transmitted to a data server that accumulates the data necessary to diagnose deterioration of the infrastructure. This paper presents the system architectures of the wireless AE monitoring system according to our prototype.
