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U N D E R G U I D A N C E O F P R E S E N T E D B Y

M R . M A R I M U T H U C R I C H U R A C H E L G E O R G E

P R 1 0 E I 2 0 0 8

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GPRS BASED HEART RATE

MONITORING SYSTEM

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OBJECTIVE2

Real time monitoring of heart rate and display thesignal on an LCD

Alert the doctor if there is any abnormality is

present, using GPRS module

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BLOCK DIAGRAM3

ECGELECTRODES

ECGAMPLIFIER

& FILTER LPC2378

LCD(128*64)

GPRS

ADC

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Fan Aihua, Bian Chunhua, Ning Xinbao, He Aijun, Zhuang Jianjun

Portable electrocardiogram monitor based on ARMInformation Technology and Applications in Biomedicine, 2008.ITAB 2008. International Conference on , pp:481 - 483 ,30-31

May 20084

Uses an AT91SAM7S64 arm7 processor to monitorreal time ECG ,record data, displays the wave andsends out alarm when exception is detected usingRF module.

Arm7 has real-time timer is used for updating thecurrent date and time and timer (TC0) is used for

timing trigger The data analysis is according to three variables:

the RR interval, the QRS wave width and averagevalueRR of 8 RR Intervals

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Cont..5

Block diagram

Software section consist of acquisition fromadc,display the ecg wave,data transfer tophone,data storage on sd card,data analysis and

alarm,updating current time

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Lihuang She1, Jinshuan Zhao1, Shi Zhang1, Guohua Wang1, Gang Wang1

A Novel Portable One Lead ECG Monitor with Low-Cost and

Long-Time Recording Based on NUC501, 2010 Chinese Control and Decision Conference,pp:276-279

a portable low-cost long- time one lead Electrocardiogram (ECG)

Monitor is present, which is powered by one dry battery and

based on NUC501.

Software has two important parts: front data processing and fast

algorithm for R wave

In front end processing digital filter is chosen to remove

interference noise.

To detect r wave we use differential threshold method, which is

based on detecting ECG signal amplitude and slope.

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V Thulasi Bai1 and S K Srivatsa,Design and implementation of mobile tele cardiac system,Journal of scientific & industrial research,vol. 67 ,pp:1059-1063 , october 2008

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ECG is continuously monitored and details arewirelessly loaded into external memory of armprocessor using Bluetooth technology.

RR interval of QRS wave is used to find heart rate in

bpm For normal person this interval is 600-1000.

If bpm is found less than 60 then it is bradycardia, ifit is above 100 then it is tachycardia

If exception is found then it declares panic conditionand sends a 1 min sample of ECG using GSM/GPRSmodule.

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Work done8

Ecg waveform acquired

F=1.041 Hz

Vpp=1.44V

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WORK DONE9

Done adc in lpc2378

Plot adc output on 128*64 pixel graphic Lcd

Interfaced sim900 module with lpc2378

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Graphic lcd10

Flow chart for initilization and display of lcd

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Work to be done11

Find number of heart beats from ECG usingmicrocontroller

Send data using GPRS module if abnormality occurs

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Thank you

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