基于无线体域网的运动数据采集仪设计

Design of Sports Data Acquisition System Based on Wireless Body Area Network

本文针对传感设备在无线体域网中的实际应用,设计了以STM32F103C8T6为核心处理器的运动数据采集仪。该采集仪能实时捕捉用户心率、体温、步数等健康数据,并通过LoRa通讯实现数据上传,具备数据显示、数据存储、历史数据访问等功能。此外,针对ECG信号中存在的基线漂移问题,本文采用中值滤波算法进行处理,该方法在保持ECG信号特征的前提下,有效去除了基线漂移噪声。经测试,本运动数据采集仪在实际应用中运行稳定,各项性能均满足指标要求。

Aiming at the practical application of sensor equipment in wireless body area network,this paper designs a sports data acquisition instrument with STM32F103C8T6 as the core processor.The acquisition instrument can capture the user's heart rate,body temperature,step count and other health data in real time,and realize data upload through LoRa communication,with data display,data storage,historical data access and other functions.In addition,in view of the baseline drift phenomenon in ECG signals,this paper uses median filtering algorithm to process,this method effectively removes the baseline drift noise while maintaining the characteristics of the ECG signal.After testing,this sports data acquisition system runs stably in practical applications,and all performances meet the index requirements.