GPS浮标追踪测流系统研究

Research on GPS Float Tracking Measurement System

为了提高传统的浮标测流的准确性,解放劳动力,提出了一种基于GPS定位技术以及ZigBee无线传输技术的自动化浮标测流系统的设计方案,包括浮标的结构设计,软硬件设计。用全微分来计算了装置的理论定位误差,经试验证明实际定位误差与理论计算的一致;速度的计算算法采用在一定数据量下多次计算速度再求平均值的方法,能有效消除定位误差。经仿真以及试验验证,该装置的测速精度能满足水文测流的需求,为浮标自动化测流的后续研究提供理论基础。

In order to improve the accuracy of the traditional float gauging,release the labor force and ensure the safety of hydrologists,this paper proposed a design scheme of automatic buoy monitoring system based on GPS positioning technology and ZigBee wireless transmission technology,including the design of buoys structure,software and hardware.Using full differentials to calculate the theoretical positioning error of the device,the actual positioning error is proved by experiment to be consistent with the theoretical calculation,and the calculation algorithm of velocity can effectively eliminate the positioning error by using the method of calculating the speed and averaging it several times under a certain amount of data.After simulation and test verification,the speed measurement accuracy of the device can meet the needs of hydrologic current measurement,and provide a theoretical basis for the further study of the buoy automatic gauging.