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RISHIRAJ INSTITUTE OF TECHNOLOGY, INDORE





MINOR PROJECT
ON
HEART BEAT MONITORING SYSTEM




SUBMITTED BY


ANAND DWIVEDI
HEART BEAT MONITOR
A heart rate monitor is a
personal monitoring device
which allows one to measure
his or her heart rate in real
time or record the heart rate
for later study. It is largely
used by performers of
various types of physical
exercise.
Fig. 1 Wrist band for calculating heart beat

Widely used in hospitals for
checking the health of
patient(s)
Why Monitoring……?
More than 2 million people are at high
risk of having heart attack.
It would be helpful if there was a way
for these people to monitor their heart.
So we have a problem. That is the way
our project focuses on how we can
utilize this problem and find a
solution.
Measurement of Heart rate
• Stethoscope --inaccurate

• Electrocardiogram –
costly
& not user friendly

4
Average Heart Rate
Age
Newborn

140

7 years

85 – 90

14 years

80 – 85

Adult

5

Average Heart Rate

70 – 80
Microcontroller and why
Microcontroller not
• A microcontroller is a single-chip microcomputer
Microprocessor?
which contains RAM , ROM , CPU , I/O ports , ADC
•
•

•
•
•
6

and other peripherals.
It has fixed amount of RAM , ROM , I/O ports.
It is also called embedded microcontroller because it is
designed for embedded systems performing specific
tasks only.
Microprocessor only has CPU , ALU, stack pointer,
program counter and other registers ,clock timing
circuit.
Microprocessor does not have RAM, ROM and I/O
ports
It requires large space and it’s cost is higher as
compared to microcontroller.
What we have done? ? ?
• We , in this project are measuring the
heart beat using the pulse oximetry
logic.
• The timer we have set for counting the
heart beat is 30s.
• There is a set point we can decide, after
30 s the heartbeat would be shown on
the LCD.
7
Software we used ? ? ?
• KEIL uVision3 IDE
• SPI flash programmer

8
Top view of our project

9
Hardware implementation
•
•
•
•
•
•
•
•
•
10

Transformer
Full wave rectifier
7805 voltage regulator
Buzzer
LM324
Potentiometer
LED + LDR used as sensor
LCD
Circuit diagram of project
11
HOW ? ? ?
• Transformer steps down 220V to 9-09V.
• Full wave rectifier converts the ac into
dc.
• 7805 voltage regulator regulates the
voltage to 5V, which is the operating
voltage of our microcontroller.
• LCD is interfaced with microcontroller.
• LED - LDR sensor is used to count the
Pulses. It consists of a red LED and
12
LDR .
What is happening on-board ?
• Transformer is making the ac voltage 220 volt to
step down to 9-0-9 volt ac.
• Full wave rectifier is rectifying that voltage to get
larger average dc voltage.
• 7805 is regulating the output voltage to 5v.
• Sensor consist of red LED and LDR is generating
the output signal inversely proportional to
absorption of red light caused by blood.
• Trans-impedence amplifier is converting current
signal to voltage signal ,amplifying signal and
change in signal and also filtering the signal also.

13
LED – LDR sensor

LED
14

LDR
PCB back side diagram

15
Board back side photo

16
Applications

17

• Have become a widely used training aid
for a variety of sports.
• Hospitals / Dispensaries
• Better and accurate method of
measuring heart beat.
• At homes
• A set point can help in determining
whether a person is healthy or not
checking his/her heart beat and
comparing with set point.
• In-accurate method of calculating heartbeat.

• Logic used in very simple. Therefore, results may
vary as for a sophisticated instrument for the same
purpose

18
• EEG, ECG and other health parameters can
also be monitored.
• Continuous monitoring and future diagnosis
can be performed via the same system
(TELEMEDICINE).
• More than a single patient at different places
can be monitored using single system.

19
Thank you 

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Heart beat monitor system PPT

  • 1. RISHIRAJ INSTITUTE OF TECHNOLOGY, INDORE    MINOR PROJECT ON HEART BEAT MONITORING SYSTEM   SUBMITTED BY  ANAND DWIVEDI
  • 2. HEART BEAT MONITOR A heart rate monitor is a personal monitoring device which allows one to measure his or her heart rate in real time or record the heart rate for later study. It is largely used by performers of various types of physical exercise. Fig. 1 Wrist band for calculating heart beat Widely used in hospitals for checking the health of patient(s)
  • 3. Why Monitoring……? More than 2 million people are at high risk of having heart attack. It would be helpful if there was a way for these people to monitor their heart. So we have a problem. That is the way our project focuses on how we can utilize this problem and find a solution.
  • 4. Measurement of Heart rate • Stethoscope --inaccurate • Electrocardiogram – costly & not user friendly 4
  • 5. Average Heart Rate Age Newborn 140 7 years 85 – 90 14 years 80 – 85 Adult 5 Average Heart Rate 70 – 80
  • 6. Microcontroller and why Microcontroller not • A microcontroller is a single-chip microcomputer Microprocessor? which contains RAM , ROM , CPU , I/O ports , ADC • • • • • 6 and other peripherals. It has fixed amount of RAM , ROM , I/O ports. It is also called embedded microcontroller because it is designed for embedded systems performing specific tasks only. Microprocessor only has CPU , ALU, stack pointer, program counter and other registers ,clock timing circuit. Microprocessor does not have RAM, ROM and I/O ports It requires large space and it’s cost is higher as compared to microcontroller.
  • 7. What we have done? ? ? • We , in this project are measuring the heart beat using the pulse oximetry logic. • The timer we have set for counting the heart beat is 30s. • There is a set point we can decide, after 30 s the heartbeat would be shown on the LCD. 7
  • 8. Software we used ? ? ? • KEIL uVision3 IDE • SPI flash programmer 8
  • 9. Top view of our project 9
  • 10. Hardware implementation • • • • • • • • • 10 Transformer Full wave rectifier 7805 voltage regulator Buzzer LM324 Potentiometer LED + LDR used as sensor LCD Circuit diagram of project
  • 11. 11
  • 12. HOW ? ? ? • Transformer steps down 220V to 9-09V. • Full wave rectifier converts the ac into dc. • 7805 voltage regulator regulates the voltage to 5V, which is the operating voltage of our microcontroller. • LCD is interfaced with microcontroller. • LED - LDR sensor is used to count the Pulses. It consists of a red LED and 12 LDR .
  • 13. What is happening on-board ? • Transformer is making the ac voltage 220 volt to step down to 9-0-9 volt ac. • Full wave rectifier is rectifying that voltage to get larger average dc voltage. • 7805 is regulating the output voltage to 5v. • Sensor consist of red LED and LDR is generating the output signal inversely proportional to absorption of red light caused by blood. • Trans-impedence amplifier is converting current signal to voltage signal ,amplifying signal and change in signal and also filtering the signal also. 13
  • 14. LED – LDR sensor LED 14 LDR
  • 15. PCB back side diagram 15
  • 16. Board back side photo 16
  • 17. Applications 17 • Have become a widely used training aid for a variety of sports. • Hospitals / Dispensaries • Better and accurate method of measuring heart beat. • At homes • A set point can help in determining whether a person is healthy or not checking his/her heart beat and comparing with set point.
  • 18. • In-accurate method of calculating heartbeat. • Logic used in very simple. Therefore, results may vary as for a sophisticated instrument for the same purpose 18
  • 19. • EEG, ECG and other health parameters can also be monitored. • Continuous monitoring and future diagnosis can be performed via the same system (TELEMEDICINE). • More than a single patient at different places can be monitored using single system. 19