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HEART BEAT MONITORING

PREPARED BY:- SAYYAM GADHOK UE 105091. HEART BEAT MONITORING. Heart rate measurement is one of the very important parameters of the human cardiovascular system. Electro-cardiogram (ECG) is one of frequently used and accurate methods for measuring the heart rate.

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HEART BEAT MONITORING

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  1. PREPARED BY:- SAYYAM GADHOK UE 105091 HEART BEAT MONITORING

  2. Heart rate measurement is one of the very important parameters of the human cardiovascular system. Electro-cardiogram (ECG) is one of frequently used and accurate methods for measuring the heart rate. But it’s being costly, here is a way to measure heart rate of a person by clipping his/her fingers with sensors. INTRODUCTION

  3. Block DIAGRAM Figure 1. Block diagram of the measuring device. Figure 2. Infrared transmitter and received sensor pair clipped to the finger

  4. The transmitter-sensor pair is clipped on one of the finger of the person. The LED emits infrared light to the finger of the subject. The photo-transistor detects this light beam and measures the change of blood volume through the finger artery. This signal, which is in the form of pulses is then amplified and filtered suitably and is fed to microcontroller for analysis and display. The microcontroller counts the number of pulses over a fixed time and thus obtains the heart rate of the subject. The calculated heart rate is displayed on an LCD in beats-per-minute in the following format: Rate = nnnbpm Where nnn is an integer between 1 and 999. WORKING PRINCIPLE

  5. CIRCUIT DIAGRAM Figure 3. Circuit diagram of the device

  6. WAVEFORMS • Figure 4. Frequency and phase responses of the amplifier and filter circuit (obtained by connecting a PC based oscilloscope to the circuit)

  7. WAVEFORMS Figure 5. Output response of the amplifier and filter circuit (obtained by connecting a PC based oscilloscope to the circuit)

  8. The device is most useful if its portable A display of the heart rate on LCD A précised count of heart pulses are shown Easy to carry Low power Consumption It can be used by non-professional people at home to measure heart rate easily and safely ADVANTAGES

  9. Heart Beat Monitoring in hospital In fitness centres Personal HBM applications

  10. The device can be improved in certain area as listed below:- A graphical LCD can be used to display a graph of the change of heart rate over time. The maximum and minimum heart rates over a period of time can be displayed. Serial output can be attached to the device so that the heart rates can be sent to a PC for further online or offline analysis. Warning or abnormalities (such as very high or very low heart rates) can be displayed on the LCD or indicated by an LED or a buzzer. CONCLUSION

  11. THANK YOU

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