MICROCONTOLLER BASED

HEART BEAT MONITORINGSYSTEM

BY

K.MANOJ (12241-EC-024)P.PRIYANKA (12241-EC-041)

R.PAVAN (11073-EC-026)

INTRODUCTION

•This project explains how a single chip microcontroller can be used to analyze heart beat rate signals in real time

•The heart rate is measured by employing the pulse method that is blood flow in the finger

CONTENTS OF THIS PROJECTREGULATED POWER SUPPLYLEDLDRAMPLIFIER & FILTERMICROCONTROLLERBUFFER CIRCUITCLOCK CIRCUITLCD DISPLAY

REGULATED POWER SUPPLY

• It converts unregulated AC into a constant DC.

• Used in various amplifiers and oscillators

LED(Light Emmiting Diode)

LDR(Light Depending Resistor)

AMPLIFIER & FIILTER

• Amplifier is an electronic device that increases the power of a signal .

• Filters are used to separate the required frequency

MICROCONTROLLER• Microcontroller is a small computer

on a single integrated circuit.• It contains a

processer,memory,ADC&DAC ,registers.• It is used for performing specific

task.

BUFFER CIRCUIT• Buffer circuits are mainly used to avoid

disfunctionality of a circuit.• Delay matching.

CLOCK CIRCUIT

• This circuit produces a clock signal.• A pattern of pulses which repeats itself.

LCD DISPLAY

• A LCD is a electronic visual display.

• It is made up of many no.of segments filled with liquid crystals.

• Its low electrical power consumption enables it to be used in battery powered electronic equipment

When blood flows during the systolic stroke of the heart the finger gets its blood via radial artery of the arm

The blood flow into the finger can be sensed photo electrically using LDR

The photo current is converted into voltage and amplified by an operational amplifier

The microcontroller processes the signal and the heart rate is displayed using 7-segment display

DESCRIPTION

PROCESS

ADVANTAGES

• Portable• Low power consumption• Easy to use

APPLICATIONS

• Heart rate monitoring in fitness center • For athletes• In rural areas where medical facilities are

limited• Can check heart rate regularly in homes

CONCLUSION

• Hence this system measures heart rate of a human being in real time and in any place.

FUTURE SCOPE• Storing the heart rate in a memory.

• In old-age homes and hospitals.

REFERENCES

• 1. "The 8051 Microcontroller Architecture, Programming & Applications"

• By Kenneth J Ayala.• 2. "The 8051 Microcontroller & Embedded Systems" by

Mohammed Ali Mazidi and Janice Gillispie Mazidi• 3. "Power Electronics” by M D Singh and K B Khanchandan• 4. "Linear Integrated Circuits” by D Roy Choudary & Shail Jain• 5. "Electrical Machines” by S K Bhattacharya• 6. "Electrical Machines II” by B L Thereja• 7. www.8051freeprojectsinfo.com