基于IMU姿态传感器的游泳数据分析系统

Swimming Coach System Based on IMU Attitude Sensor

基于姿态传感器游泳数据采集与监测系统的研究对详细记录分析游泳运动非常有意义。针对一些市场上的可穿戴产品功能主要集中在跑步、走路、骑行等运动上,而少有具备能够支持游泳监测功能的,苹果手表2代推出了游泳功能,广受消费的喜爱,但在实际使用当中发现,游泳功能只能支持距离、时间等数据的监测,缺乏更详细的游泳数据。除此以外具备游泳功能的小众产品,在游泳泳姿识别和数据监测方面的效果不是特别理想的问题,本文采用单个LPMS-B2九轴姿态传感器,通过蓝牙连接获取九轴姿态数据,利用Python对数据进行降噪、计算得出泳姿、划臂次数及频率等数据,后台使用Java和Python,前端App展示数据。该系统可用于游泳者了解自己的游泳数据,也可以帮助教练指导学员。

The research of swimming data acquisition and monitoring system based on attitude sensor is very meaningful to record and analyze swimming movement in detail.In view of the fact that the functions of some wearable products in the market mainly focus on running,walking,riding and other sports,and few of them can support the swimming monitoring function,Apple Watch 2 launched the swimming function,which is widely loved by consumers.However,in actual use,it is found that the swimming function can only sup⁃port the monitoring of distance,time and other data,lacking more detailed swimming data.In addition,the effect of minority products with swimming function in swimming posture recognition and data monitoring is not particularly ideal.In this paper,a single LPMS-B2 nine axis posture sensor is used to obtain nine axis posture data through Bluetooth connection.Python is used to de noise the data and calculate the data of swimming posture,stroke times and frequency.Java and python are used in the background and AP is used in the front end P shows the data.The system can be used for swimmers to understand their own swimming data,and can also help coaches guide students.