title: Corrosion in reinforced concrete panels: wireless monitoring and wavelet-based analysis.
abstract: To realize the efficient data capture and accurate analysis of pitting corrosion of the reinforced concrete (RC) structures, we first design and implement a wireless sensor and network (WSN) to monitor the pitting corrosion of RC panels, and then, we propose a wavelet-based algorithm to analyze the corrosion state with the corrosion data collected by the wireless platform. We design a novel pitting corrosion-detecting mote and a communication protocol such that the monitoring platform can sample the electrochemical emission signals of corrosion process with a configured period, and send these signals to a central computer for the analysis. The proposed algorithm, based on the wavelet domain analysis, returns the energy distribution of the electrochemical emission data, from which close observation and understanding can be further achieved. We also conducted test-bed experiments based on RC panels. The results verify the feasibility and efficiency of the proposed WSN system and algorithms.
authors.affiliation: Key Lab of Structures Dynamic Behavior and Control, Harbin Institute of Technology, Ministry of Education, Harbin 150090, China. qgf_forever@hit.edu.cn.
authors.forename: Guofu
authors.initials: G
authors.lastname: Qiao
authors.affiliation: School of Information Science and Technology, Beijing Forestry University, Beijing 100083, China. sgdcs@mail.tsinghua.edu.cn.
authors.forename: Guodong
authors.initials: G
authors.lastname: Sun
authors.affiliation: Centre for Composite Material and Structure, Harbin Institute of Technology, Harbin 150090, China. hongyi@hit.edu.cn.
authors.forename: Yi
authors.initials: Y
authors.lastname: Hong
authors.affiliation: Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China. liutiejun@hit.edu.cn.
authors.forename: Tiejun
authors.initials: T
authors.lastname: Liu
authors.affiliation: Key Lab of Structures Dynamic Behavior and Control, Harbin Institute of Technology, Ministry of Education, Harbin 150090, China. guanxch@hit.edu.cn.
authors.forename: Xinchun
authors.initials: X
authors.lastname: Guan