Design And Implementation Of Portable ECG Monitor Based On STM32F103

Heart disease is one of main diseases that threat human health,So Dynamic ECG monitor design a continuous 24 hour track record has important clinical significance for early detection of heart disease.In this paper,we try to adopt the combination of electronic technology and computer,design a small portable,real-time ECG waveform display of portable ECG monitor.I design a ECG monitor has a variety of filter,strong anti-interference ability,intuitive and convenient,is the preferred home ECG monitor.In the design of electronic circuits,a power supply circuit is designed to provide a stable power supply for each part.Design of lead selection circuit composed of wilson network.The circuit can switch between the leads.The preamplifier circuit and the driven circuit right leg circuit design in the use of INA118 to achieve operational amplifier.In the circuit.The 0.05HZ-100 HZ bandpass filter circuit,the main amplifier circuit,50 HZ and 35 HZ are designed can effectively filter out the interference of all kinds of frequency.Dot matrix LCD module HG1286412 B,128*64 dot matrix display,display ECG waveform,realize the real—time dynamic display of ECG waveform.The ECG waveform is further optimized by software filtering.In this paper,the design of single-chip microcomputer STM32F103 as the core of digital circuit control peripheral circuits.Through the USB interface controller CH372,we can send the ECG data to the host computer,In the host computer the waveform is further optimized to provide a useful ECG waveform.In this paper,the various aspects of the above described in detail,basically meet the design requirements.After debugging and analysis the waveform and data are basically consistent whith the actual data.Lay the foundation foe the further optimization of the system function and accuracy in the future.The whole system is small and portable,which is suitable for popularization and application in the family.