基于单片机的测量心率脉搏健康系统设计与摘 要
日常生活中许许多多的恶习例如熬夜、用餐不规律等，会给我们的身体带来很大的损伤，现在越来越多人们的身体指标只能达到亚健康，身体健康问题不容小觑。因此测量心率脉搏是很有必要的，本次专业设计了可以测量心率脉搏的健康系统。其中AT89C51单片机是该系统的控制器，利用内部定时器中断程序来计算时间，利用外部中断程序累加心率脉搏次数，经过ST188红外光电传感器后生物信号变为光电信号。单片机在定时器中断后，通过系统内外部中断程序，在一分钟计时内经过对脉冲累加得到所测量的心率脉搏数值。系统通过显示程序后，测量结果不仅可以通过LCD1602液晶显示屏显示出来，还可以通过蓝牙模块将测得的数值传送到手机APP上供我们监测。当心率脉搏次数不在我们设定的最小值到最大值之间的范围时系统会触发警报，当然，这个报警的范围值是我们可以自行设定的，并且可以随时改变。
因此，本次对测量心率脉搏健康系统的分析、研究与设计是非常有意义的，最终将实现心率脉搏测量功能，实现我们对心率脉搏的监测，其实也就是对我们身体健康的监测。报警电路的设置也是为了让我们引起重视，对于不在我们设置的健康范围之内的情况予以警告。
关键词：心率脉搏测量健康系统；AT89C51单片机；ST188红外光电传感器
Abstract
Many bad habits in our daily life, such as staying up late, eating irregularly and so on, will bring great harm to our body. Now more and more people’s physical indicators can only reach sub-health, and the problem of physical health can not be underestimated. Therefore, it is necessary to measure heart rate and pulse. This major has designed a health system that can measure heart rate and pulse. AT89C51 is the controller of the system. The internal timer interrupt program is used to calculate the time, and the external interrupt program is used to accumulate the number of heart rate and pulse. After ST188 infrared photoelectric sensor, the biological signal becomes photoelectric signal. After the timer is interrupted, through the internal and external interrupt program of the system, the measured heart rate and pulse value can be obtained through pulse accumulation within one minute. After the system has passed the display program, the measurement results can not only be displayed on LCD1602 , but also be transmitted to the mobile app for our monitoring through Bluetooth module. When the number of heart rate pulse is not in the range from the minimum value to the maximum value set by us, the system will trigger an alarm. Of course, the alarm range value can be set by ourselves and can be changed at any time.
Therefore, the analysis, research and design of the heart rate and pulse health measurement system is very meaningful. Ultimately, it will realize the heart rate and pulse measurement function, and realize our monitoring of heart rate and pulse, which is actually the monitoring of our health. The setting of alarm circuit is also to make us pay attention to the situation that is not within the health range of our setting.
Keywords:Heart rate and pulse measuring system; Single chip microcomputer; ST188 infrared photoelectric sensor
目 录
摘 要 I
Abstract II
目 录 III
第1章 绪 论 1
1.1 课题背景 1
1.2 健康系统的发展与应用 1
第2章 心率脉搏测量系统结构 3
2.1 心率脉搏测量系统的结构 3
2.2 系统工作原理 3
第3章 硬件系统 5
3.1 控制器 5
3.1.1 AT89C51单片机 5
3.1.2 AT89C51单片机的特性 6
3.2 心率脉搏测量模块 6
3.2.1 ST188光电传感器 6
3.2.2 光电传感器模块 7
3.3 显示模块 8
3.3.1 LCD1602简介 8
3.3.2 显示电路 8
3.4 蓝牙模块 9
3.4.1 串口调试工具 9
3.5 元件清单与原理图 10
3.5.1元件清单 10
3.5.2原理图 10
第4章 软件系统 11
4.1 主程序 11
4.2 子程序流程 11
4.2.1 定时器中断程序 11
4.2.2 外部中断程序 12
4.2.3 显示程序 13
4.2.4 报警程序 13
第5章 实验结果与分析 15
5.1 使用方法 15
5.2 实验结果 15
5.2.1 心率脉搏的测量 15
5.2.2 初始报警范围 16
5.2.3 报警范围的改变 16
5.2.4 蓝牙通信功能 17
5.3 分析比较 18
结 语 19
参考文献 20
致 谢 21
