基于单片机的智能手环设计

基于单片机的智能手环设计目录摘要Abstract.第一章前言…1.1课题研究背景和意义1.2国内外研究现状1.3论文内容介绍2第二章系统方案设计.32.1系统实现的功能2.2主控芯片以及各模块芯片选择.32.2.1主控芯片选择.32.2.2主要模块芯片选择…3第三章系统硬件设计53.1单片机最小系统设计…3.1.1主控芯片选型53.1.2单片机最小系统电路设计63.2心率血氧模块设计.3.2.1心率血氧模块选型.63.2.2心率血氧模块电路设计3.3计步模块设计..83.3.1计步模块选型3.3.2计步模块电路设计83.4温度检测模块设计….93.4.1温度检测模块选型93.4.2温度检测模块电路设计..103.5OLED显示模块设计….103.5.1OLED显示模块选型..103.5.2OLED显示模块电路设计3.6时钟模块设计123.6.1时钟模块选型.123.6.2时钟模块电路设计..123.7蓝牙模块设计133.7.1蓝牙模块选型133.7.2蓝牙模块电路设计133.8报警模块设计.143.8.1报警模块选型.…….143.8.2报警模块电路设计.143.9按键设置电路153.10电源电路设计.…16第四章软件编程设计…。174.1主程序设计…174.2心率血氧模块程序设计184.3计步模块程序设计….184.4温度检测模块程序设计194.5OLED显示模块程序设计.204.6蓝牙模块程序设计214.7报警模块程序设计214.8按键程序设计22第五章实物调试235.1静态调试235.2动态调试…23第六章总结与展望30致谢.31参考文献….32附录智能手环整体电路原理图33本科生毕业论文（设计）原创性声明34本科生毕业论文（设计）版权使用授权书.34II摘要在当代社会人们健康意识普遍提高的情况下，不同年龄段的群体对身心健康变得日益关注，促使大家去寻找更有效的健康监测方法，现代电子信息技术和医学科学相互融合发展，为符合这一需求给予了技术支持，高精度便携式医疗监测设备的研制成为关键的研究方向，鉴于心率、血氧、体温以及计步这四项核心生理指标监测的必要性，本研究顺应技术发展潮流，开发了一种基于单片机架构的运动监测系统模块。本研究设计的硬件系统主要是由STM32微控制器模块、ADXL345三轴加速度传感器、心率血氧检测模块、OLED显示模块、电源管理模块、DS1302实时时钟模块以及DS18B20温度传感器所组成，当中ADXL345加速度传感器通过实时监测人体运动期间的重力加速度变化，实现运动状态识别与步数统计的功能，心率血氧检测模块运用光电传感技术，经过手指脉搏信号的放大以及比较器处理，把采集到的数据传送到主控芯片来进行生理参数分析。系统有集成显示功能，可在OLED屏幕上实时呈现步数、心率血氧值、环境温度以及时间等多项数据指标，依靠蓝牙通信模块实现数据无线传输到移动终端，方便陪护人员远程监测使用者的运动状态，该设计方案在保证功能完整性的前提下实现了较低的成本控制，呈现出一定的市场应用价值。关键词：计步器：心率血氧：DS18B20温度传感器：STM32单片机大连海洋大学本科毕业论文（设计）AbstractAbstractIn contemporary society,when people's health awareness has generally improved,groups of different age groups have become increasingly concerned about physical andmental health,prompting them to seek more effective health monitoring methods.Modernelectronic information technology and medical science have integrated and developed witheach other,providing technical support to meet this demand.The development ofhigh-precision portable medical monitoring equipment has become a key research direction.In view of the necessity of monitoring four core physiological indicators,namely heart rate,blood oxygen,body temperature and step counting,this study conforms to the trend oftechnological development and develops a sports monitoring system module based on thesingle-chip microcomputer architecture.The hardware system designed in this study is mainly composed of the STM32microcontroller module,the ADXL345 three-axis acceleration sensor,the heart rate andblood oxygen detection module,the OLED display module,the power managementmodule,the DS1302 real-time clock module and the DS18B20 temperature sensor.Amongthem,the ADXL345 acceleration sensor achieves the functions of motion state recognitionand step count statistics by real-time monitoring of the changes in gravitationalacceleration during human movement.The heart rate and blood oxygen detection moduleuses photoelectric sensing technology.After amplifying the finger pulse signal andprocessing it with a comparator,the collected data is transmitted to the main control chipfor physiological parameter analysis.The system has an integrated display function,whichcan present multiple data indicators such as