基于无线传感器网络的岩体声发射信号监测系统  

Rock-mass acoustic emission signal monitoring system based on wireless sensor network

作　　者：郭小华[1] 丁学恭[1] 陈岁生[1] 

机构地区：[1]杭州职业技术学院,浙江杭州310018

出　　处：《电子技术应用》2011年第3期121-125,共5页Application of Electronic Technique

基　　金：2010年杭州职业技术学院科研项目(ky201003)

摘　　要：在分析了现有岩体声发射信号监测系统存在局限性的基础上,利用无线传感器网络和压缩感知技术,设计了一种新型岩体声发射信号监测系统,详细叙述了系统结构和软硬件实现方法,并将其应用于高速公路岩体边坡稳定性监测。实际应用结果表明,系统设计方案合理可行,且由于使用了压缩感知技术,在采样频率为200 kHz的情况下,也可实现声发射信号原始测量数据和特征参数的远程、实时、可靠的无线传输。Based on the analysis of the limitations of the present rock-mass acoustic emission signal monitoring systems, the new type of rock-mass acoustic emission signal monitoring system was designed by using the wireless sensor network and compressed sensing techniques, then the architecture, hardware and software design approach of the proposed system were presented in detail. The proposed system has been applied in stability monitoring for the highway rock-mass slopes. The practical results show that the design scheme of the proposed system is rational, moreover, the remote, real-time and reliable wireless transmission for the raw measurement and characteristic parameters of rock-mass acoustic emission signal is implemented with the sampling frequency at 200kHz through the use of compressed sensing technology.

关 键 词：岩体声发射 岩体稳定性 无线传感器网络 音频 压缩感知 

分 类 号：TP393.05[自动化与计算机技术—计算机应用技术]