final review

A Low Cost Embedded System For Patient Monitoring:

A Low Cost Embedded System For Patient Monitoring By GOWTHAMI. S 1SJ07EC021 KAVYA. A. M 1SJ07EC028 MAMATHA. S 1SJ07EC037 NIKITHA. R 1SJ07EC052 Under the guidance of Dr. S. BHARGAVI Professor S. J. C Institute of Technology Chickballapur

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2 4 WHAT’S INSIDE ??? Introduction Objective Hardware Implementation Software development Results Advantages Applications Cost details Conclusion Future Enhancements References

Introduction:

Introduction Patient Monitoring Purpose Heart Rate Body Temperature Why low cost monitoring ?

Objective:

Objective “ To design a low cost embedded patient monitoring system ”

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MICROCONTROLLER (AT89C51) ADC-0804 TEMP SENSOR (LM35) LCD DISPLAY(HD44780U) LED and PHOTO SENSOR UNIT POWER SUPPLY-5V Hardware Implementation

Description of circuit diagram:

Description of circuit diagram

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Features 4K Bytes of In-System Programmable (ISP) Flash Memory 4.0V to 5.5V Operating Range Fully Static Operation: 0 Hz to 33 MHz 128 x 8-bit Internal RAM 32 Programmable I/O Lines Two 16-bit Timer/Counter Interrupt Recovery from Power-down Mode Fast Programming Time Microcontroller AT89C51

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Heart Beat Sensor Unit

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ADC 0804 & LM35 Features ADC-0804 8-bit Resolution Parallel ADC On chip clk 606.06KHz ,conversion Time 1.65µs TTL Compatible Inputs and Outputs 0V to 5V Analog Voltage Input Range (Single + 5V Supply) LM35 Rated for full -55’ to 150’C range Operates from 4 to 30v Scale factor 10mV/’C Accuracy +/-0.5’C

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Power supply Unit

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Features 5 x 8 dot matrix Low power operation support 2.7 to 5.5V 80`8-bit display RAM (80 characters maximum ) HD 44780U (LCD-II)

Software Development:

Software Development Start Initialize LCD and ADC Temperature sense_ADC Heart rate sense Is >50? Display Temperature, Heart rate Display Temperature, Heart rate= 0 Stop a a a

RESULTS:

RESULTS Set up of patient monitoring system

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Patient hand on left measuring body temperature, to right measuring heart rate.

Advantages:

Advantages The patient monitor is Easy to use Portable Affordable Inexpensive Consumes less power Self monitor Most accurate type of body temperature measurement ECG and EEE have an electrical contact with the patient, so they can be hazardous Comfortable method to measure the body temperature and heart rate

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Applications Abnormal heart rate is a symptom of SIDs An impact on athletes, discovers the answers to most of their fitness questions One will be able to monitor heart at home safely

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Cost details cost price Micro controller- Rs 60 Lcd - Rs 120 Adc - Rs 35 LM35- Rs 70 Photo sensor-Rs 158 others-Rs 220 soldering -Rs 500

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Conclusion Measurement of parameters -body temperature and heart rate Enjoy easy monitoring Applies to all ages of people who want to monitor their heart rate for any reason Significance of the monitor, provides an inexpensive and accurate means of measuring heart rate No need of other person to aid a person/patient No harm in using optical heart monitor and a temperature sensor unit, operated at 5V

Future Enhancements:

Future Enhancements Still more parameters like blood pressure glucose level, urine concentration estimation etc Wireless monitoring and alarm features can be included

REFERENCES:

REFERENCES [1] Patient Monitor < http:// www.en.wikipedia.org/wiki/Medical_monitor > [2] Heart rate measurement < http://www.scribd.com/50718025/heartbeat-measurement > [3] Microcontroller AT89C51 < http://www.atmel.com/atmel/acrobat/doc3aa4ba734a7dc.pdf > [4] Temperature LM35 < http://www.national.com/mpf/lm/lm35.html > [5] Voltage Regulators < www.elecfree.com/circuits/power-supply-regulators-ic-7805-7806-7809-7812 > [6] David A Bell, ” Operational amplifiers and Linear ICs”, Eastern Economy Edition, 2 nd Edition [7] Ramakanth A Gayakwad, “OP-AMPS and Linear Integrated Circuits”, Eastern Economy Edition, 4 th Edition [8] Muhammad Ali Mazidi, Janice gillispie mazidi and Rolin D. McKinley, “The 8051 Microcontroller and Embedded system using Assembly and C“, PEARSON prentice hall inc, 2 nd Edition [9] Kenneth Ayala,” The 8051 Microcontroller”, Thomson learning inc, 3 rd Edition [10] Liquid crystal display < http://en.wikipedia.org/wiki/liquid_cyrtal_display > [11]KeilµVision3 and Flash magic manual

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Queries Thank you