基于北斗短报文的泥石流监测预警系统

Debris Flow Monitoring Early Warning System Based on Beidou Short Message

设计了一种利用北斗短报文传输数据的泥石流监测预警系统,并将其应用于地质灾害监测中。该仪器利用嵌入式处理器和高分辨率模数转换器,将监测数据转换为数字信号,通过北斗终端以短报文格式发送到后台的监控服务器,监控服务器将数据解析、显示、存储的同时,可以根据预先设定的报警阈值向相关人员发出报警信息。系统采用九通道设计,可以同时连接九个传感器进行监测。目前该系统已经通过了室内与野外实验,并且在四川雅安"4.20"庐山地震震后次生灾害监测工作中发挥了重要的作用。实践证明,该仪器采集的数据精度与预警的成功率符合设计的指标,性能可靠,安装简便,非常适合于野外工作的要求。

In order to monitoring geological hazard,a debris flow monitoring early warning system based on Beidou short message was designed. With the help of the embedded processor and high resolution ADC,this instrument was able to convert the monitoring data to digital signal,which will be sent to the monitoring servers backstage in short message format to be analyzed,displayed and stored. In the meantime,the monitor servers can send the alarm informa- tion to related personnel according to the preestablished alarm threshold value. The whole system design can connect nine sensors as the result of nine-channel-design,which has past both the laboratory and field experiments and has played a very important role in the secondary disaster monitoring after Lushan ＂4.20＂ Earthquake in Yaan,Sichuan. Practice has proved that this instrument meets the designed targets of data accuracy and success rate of alarm with reliable performance and simple,convenient installation,which can be very fit for the request of field work.