基于GPS电子浮标的水文应急测流系统

Hydrological Emergency Flow Measurement System Based on GPS Electronic Buoy

针对灾害应急场景设计了水文应急测流系统。系统利用随水流运动的GPS电子浮标实时位置信息计算水流速度,结合GIS技术对浮标位置、轨迹、当前状态、实时流速等数据进行测流过程展示;介绍了系统架构、电子浮标外观结构和硬件设计、上位机功能模块设计,并介绍了上位机软件中针对电子浮标的精确定位问题、数据刷新的实时性问题、历史数据的存储方式问题的解决方案;实验表明浮标能够顺利采集定位信息并传输至云平台,上位机基于浮标数据能够进行流速流量的估算并显示,完成流速流量的测量。

The hydrological emergencyflow measurement system is designed for disaster emergency scenarios.The system uses the real-time position information of the GPS electronic buoy that moves with theflow to calculate theflow velocity,and combines GIS technology to display theflow measurement process data of buoy position,trajectory,current state,real-timeflow velocity and so on.The system architecture,electronic buoy appearance structure and hardware design,upper computer function module design are introduced.And it introduces the solutions of accuracy positioning problem for electronic buoy,real-time problem of data refresh,store method problem of historical data in the upper computer software.The experiments show that the buoy can successfully collect positioning information and transmit it to the cloud platform,and the upper computer can estimate and display theflow velocity andflow rate based on the buoy data to complete the measurement offlow velocity andflow rate.