一种心率检测装置设计

AbstractHeart rate meter has been widely used in our daily life.By observing the heartrate signal,we can check the health of human body.It is usually used in healthcenters and hospitals.In order to improve the simplicity and accuracy of heart ratemeasuring instrument,a heart rate measuring instrument based on 51 single chipcomputer is designed in this paper.The system is based on STC89C52 single chipcomputer.The photoelectric sensor calculates the time by using the timer inside thesingle chip computer system.The signal is induced by the photoelectric sensor.Thenumber of beating hearts is obtained by adding up the signals.The time isdetermined by the timer.In the operation of the system,the indicator can beobserved to flicker.If the uniform flicker indicates that the measured value isaccurate.When the system stops running,it can display the total pulse number andtime.After testing,the system works normally and meets the design requirements.This design uses infrared photoelectric sensor to generate pulse signal.Afteramplification and shaping,the pulse signal is input into the MCU for correspondingcontrol,so as to measure the number of heart beating in one minute,which is fastand convenient.The system can be used to measure the number of heartbeats at thattime,at the same time,the upper and lower limits can be set.When the range ofmeasurement exceeds the set range,the buzzer can drive the alarm reminder.Inaddition,the user can set the alarm clock to remind the measurement every day.Thetime can be set by himself.The result can finally display the collected heart ratesignal on the digital tube.Keywords:STC89C52;Photoelectric Sensor;Digital tube;Instant Heart Rate