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摘要当今社会心率测量仪在人们日常生活中是非常常见的，它的原理是通过观测脉搏心跳信号，来测出人的心率。心率测量仪用于我们的健康检测，现在已经被多用于医院、养老院、康复中心等。本次我的课题是利用51单片机设计一个重点于简便性以及精准性的心率测量仪。本次设计的心率测量仪的核心是STC89C52单片机，然后由光电传感器通过对于脉搏的感应生成信号，使用STC89C52单片机的内部定时器来测算时间，脉搏的跳动次数由单片机收到光电传感器的信号相加获得，时间则由内部定时器计算获得，由此可以轻松得出心率。当心率测量仪在运作的时候，我们需要观察红色的指示灯是否闪烁，如果均匀闪烁，则说明心率测量仪在正常的工作。50690
本毕业设计主要使用红外光电传感器接收脉搏信号，经过放大滤波电路以及整形电路以后转化为电信号传输给单片机，来对系统进行操作，从而测出在一定时间内脉搏跳动的次数，来得到心率，十分简易便捷。这个系统可以由用户自行设置心率的上限范围以及下限范围，当测出的心率超过设定的范围时，报警系统将会触发，蜂鸣报警器将会发出警报，来保证每天能对自己的健康状况有个基本的了解,最终的测量结果等都会显示在LCD屏上。
该论文有图9张，表1个，参考文献16篇。
毕业论文关键词：STC89C52 心率测量仪 LCD显示器 光电传感器
Design of pulse measuring instrument based on single chip
Abstract
In today's society the heart rate measuring instrument in people's daily lives is very common,it is by observing the principle of pulse heartbeats to measure the person's heart rate.Heart rate measurement instrument used in our health testing,has now been used for hospitals,nursing homes,rehabilitation centers and the like.My problem is this use of 51 single-chip design a focus on ease of use and accuracy of heart rate meter.The core of the heart rate meter design is STC89C52 microcontroller, and then by the photoelectric sensor by sensing the pulse signal is generated using STC89C52 MCU internal timer to measure the time,her pulse frequency received by the microcontroller photoelectric sensor signals are added obtaining by the time calculation to obtain internal timer,which can be easily drawn heart rate.When the heart rate meter in operation,we need to observe the red light is flashing,even flashing, the heart rate meter in normal operation.
The graduation project is mainly the use of infrared photoelectric sensor receives the pulse signal after amplification and shaping circuit filter circuit later converted into electrical signals transmitted to the microcontroller to operate the system, thereby measure the number of times within a certain time pulse beat to get the heart rate, very simple and convenient. The system can set the upper and lower limits of the range of their own heart rate by the user when the measured heart rate exceeds the set range, the alarm system will be triggered, the alarm buzzer will sound the alarm to ensure a day for their health have a basic understanding. The final measurement results, etc. will be displayed on the LCD screen.
The paper has nine maps, a table, 126references.
Keywords：STC89C52 Heart rate meter; LCD display Photoelectric Sensors
目 录
摘要 Ⅰ
Abstract Ⅱ
目录 Ⅲ
图清单 Ⅳ
表清单 Ⅳ
引言 1
第一章 绪论 2
1.1 选题的背景和意义
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