中文摘要：

为了精确检测铁饼投掷的运动特征参数,设计了一种基于MEMS惯性测量单元和STM32F103微处理器的数字铁饼系统,阐述了系统传感单元选择与配置、硬件电路设计和软件设计。针对铁饼竞技运动对数据精度的要求,通过对陀螺仪静态漂移误差的分析,给出一种补偿MTi陀螺仪随机漂移误差的Kalman算法。利用数字铁饼可以定量分析铁饼投掷过程中的运动特征,为运动员训练提供科学的依据。

英文摘要：

In order to accurately detect the movement characteristic parameters of discus throwing,a digital discus system based on MEMS inertial measurement unit and STM32F103 processor was proposed,and the system＇s sensor unit selection and configuration,hardware circuit design and software design were described.The competitive sports of the discus require accurate data,through the analysis of the static drift error,a kind of compensation MTi gyro random drift error of the Kalman algorithm is given.The digital discus can be quantitatively analysed by using the data in the moving process,to provide scientific guide for the athletes training.