低功耗便携式健康监测设备的设计与实现

Design and Implementation of Low Power Portable Health Monitoring Equipment

阐述一个基于TI模拟前端芯片ADS1292和温度传感器LMT70的便携式健康监测设备的设计,该设备能稳定采集和记录使用者的心电信息、体表温度和运动信息。系统以STM32F407VGT6最小系统为主控部分,ADS1292前端模拟芯片检测心电相关信息,LMT70温度传感器检测温度相关信息,MPU6050加速度计检测步数相关信息STM32F407VGT6最小系统采集这些信号并对其进行数据转换、滤波等处理,将最终得到的心电图、心率、体表温度、步数和运动距离等数据通过蓝牙模块无线上传至手机App实时显示,整个系统通过USB给锂电池充电,低压差稳压器(LDO)将锂电池电压转换为稳定电压给其他部分供电,实现了低功耗与便携性。

This paper describes the design of a portable health monitoring device based on T analog front-end chip ADS1292 and temperature sensor LMT70. The device can stably collect and record users’ ECG information, body surface temperature and movement information. The system takes STM32F407VGT6 minimum system as the main control part, ADS1292 front-end analog chip detects ECG related information, LMT70 temperature sensor detects temperature related information, mpu6050 accelerometer detects step number related information, STM32F407VGT6 minimum system collects these signals and performs data conversion, filtering and other processing, and the resulting ECG heart rate, body surface temperature The data such as step number and moving distance are wirelessly uploaded to the mobile app through the Bluetooth module for real-time display. The whole system charges the lithium battery through the USB, and the low voltage differential regulator(LDO) converts the lithium battery voltage into a stable voltage to supply power to other parts, realizing low powe consumption and portability.