矿山安全声发射实时监测系统的设计与实现

针对矿山开采过程中的塌方、滑坡等实际问题，设计了一种多通道声发射实时监测定位系统。系统下位机使用MSP430F5336作为核心处理单元，采集矿山塌方及滑坡的声发射信号，并对信号进行滤波、放大以保证传输效果。利用MDS_SD4无线数传电台在采集器与上位机之间进行无线数据传输，采用RS485串口服务器实现通信协议的转换，有效解决了矿山现场布线不便的局限性问题。系统上位机通过命令发送的方式实现对下位机设备的控制，采用B/S网络结构模型，基于SSH框架和Ajax技术设计，网络化使得监测更加灵活。系统使用阈值法获取时差并改进定位算法，在误差范围内更准确地定位到声发射源位置。经现场运行测试，该系统工作稳定，有效实现了对矿山安全的实时远程监测，为矿山的安全和效益提供了更好的保障。

Design and Implementation of Acoustic Emission Real-time Monitoring System for the Mine Safety

Aiming at some practical problems in the process of mining，such as collapse and landsides，a multi-channel acoustic emission real-time monitoring and locating system was designed.The acoustic emission signal from collapse or landsides was amplified and filtered by the lower machine of the system in which MSP430F5336 was used as the central processing unit，in order to make preparation for data transmission.The wireless data radio MDS_SD4 was used to realize the data transmission between the data acquisition unit and the upper monitor.The communication protocol conversion was realized based on the serial server RS485，which is an effective solution to the limitation problem of wiring in field.Based on B/S network structure model，the framework of SSH and Ajax，the system communicate with the lower machine by sending the commands，and the networking make the monitoring more flexible.An threshold method was used to get the time difference and an improved location algorithm was used to make the acoustic emission source location well within the margin of error.Through on-site operation，the system works stably，which provides guarantee for the safety and efficiency of the mine.