me health monitoring system ppt[1]
TRANSCRIPT
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AA Seminar II OnSeminar II On Embedded Health Embedded Health Monitoring Monitoring System using System using ARM7ARM7
Presented by
Avhad Mahesh
Guided By
G.A.Kulkarni
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ContentsContentsIntroductionLiterature SurveyParameters to be monitored.Proposed Block Diagram.Key features of ARM7ApplicationConclusionsReferences
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Introduction :Introduction :The need for well-equipped hospitals and diagnostic
centers is increasing day by day as the people are becoming more conscious about their health problems.
All of these units are designed to offer the advantage of the low Nurse – Patient ratio and concentration of the equipment and the resources needed; to take care of critically ill or seriously injured units.
Most hospitals call Medical surgical emergency team by beeper annunciation or public annunciation system.
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Introduction-continuedIntroduction-continued In order to over-come all these difficulties we have
decided to complete our project on such as biomedical system which will continuously monitor the body parameters of the patient under treatment.For this we are going to designed a well known system called “ Data Acquisition System”.
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Literature SurveyLiterature SurveyConventional Methods
Doctors are used a Stethoscope for measuring Pulse Rate and Sphygmomanometer for measuring blood Pressure.
For ECG monitoring Doctors are used Dry Electrodes or Jelly Type Electrode.
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Technology usedTechnology usedPrevious technologies
are based on microcontroller that will only able to display Body Parameters on LCD Display.
Also Some uses GSM technology for sending SMS.
Fig.Participatory Home Telemedcare All with feedback so patient sees their state and their progress
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The transport architecture in mobile telemedicine
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Parameters to be monitoredParameters to be monitoredBody TemperatureBlood PressureBlood SugarECG
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Proposed Block DiagramProposed Block Diagram
Signal Conditioni
ng
ARM7
Signal Conditioni
ng
Signal Conditioni
ng
Signal Conditioni
ng
Body TempSensor
ECGSensor
Blood SugarSensor
Blood PressureSensor
GSM Modem
RS-232Serial
Interface
Personal Computer
Server
Internet
LCD Display
Clock
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Block Diagram DescriptionBlock Diagram DescriptionTotal block diagram is divided into two modes, they are
Data acquisition mode.
Uploading and SMS sending mode
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Data acquisition modeThe main block is ARM-7 micro controller which is
heart of the System which provides monitoring of different parameters.
It senses signals from input blocks and processes output blocks. The software program is stored in ARM-7 microcontroller on chip memory, according to which it provides the acquisition and send actions
The on chip ADC converts these parameters into digital form and gives to the ARM-7 microcontroller.
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Uploading and SMS sending modeThe system adopts framework design thought of module
and other function modules The main control module is mainly up to human
computer interaction, communication with functional modules, data storage, data transmission, etc. Through controlling the main functional module, the user may operate the functional module as well as other system functions and the data will be saved in the main control module
All the parameters are send through GSM Modem as per requirement.
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Temp SensorsTemp SensorsCriteria Thermocouple RTD Thermistor
Temp Range -267°C to 2316°C -240°C to 649°C-100°C to 500°C
Accuracy Low High High
Linearity Better Best Good
Sensitivity Low Low High
Cost Low High Low
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Difference Between LM34 Difference Between LM34 &LM35&LM35
LM 34 LM35
Calibrated directly in degrees Fahrenheit
Calibrated directly in ° Celsius (Centigrade)
Linear +10.0 mV/°F scale factor Linear + 10.0 mV/°C scale factor
Rated for full −50° to +300°F range Rated for full −55° to +150°C range
1.0°F accuracy guaranteed (at +77°F) 0.5°C accuracy guaranteeable (at +25°C)
Operates from 5 to 30 volts Operates from 4 to 30 volts
Less than 90 μA current drain Less than 60 μA current drain
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Blood PressureBlood Pressure
Category Systolic, mmHg
Diastolic, mmHg
Hypotension (Low)
<90 < 60
Desirable 90-119 60–79
Pre-hypertension 120-139 or 80–89
Stage1 Hypertension
140–159 or 90–99
Stage2 Hypertension
160–179 or 100–119
Hypertensive crisis
≥ 180or ≥ 120
Classification of blood pressure for adultsaccording to the American Heart Association
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ECG WaveECG Wave
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The Amplitudes and The Amplitudes and Timings of Segments of Timings of Segments of ECG Waveform.ECG Waveform.
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ARM7 FeaturesARM7 Features 16-bit/32-bit ARM7TDMI-S microcontroller in a tiny LQFP64
package 8 Kb to 40 Kb of on-chip static RAM and 32 Kb to 512 Kb of on-
chip flash memory USB 2.0 Full-speed compliant device controller with 2 Kb of
endpoint RAM Multiple serial interfaces including two UARTs (16C550), two
Fast I2C-bus (400 Kbit/s), SPI and SSP with buffering and variable data length capabilities.
One or two (LPC2141/42 vs. LPC2144/46/48) 10-bit ADCs provide a total of 6/14 analog inputs, with conversion times as low as 2.44 ms per channel.
Single 10-bit DAC provides variable analog output (LPC2142/44/46/48 only).
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Pin DiagramPin Diagram
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ApplicationApplicationThis proposed system is expected to monitor the
electrical activity of heart of the patient under critical care more conveniently and accurately for diagnosing
which can be interfaced with computer to bring it under a network system widely for the doctor to monitor the patient’s condition sitting in his own office without being physically present near to the patient’s bed
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ConclusionConclusionSometimes for some special patients
need to be monitored Patient’s heart condition regularly even if patient is not in the hospital and again doctor may want to check different patient’s condition simultaneously without going to their bed physically.
Our proposed system is expected to serve this kind of purpose more conveniently
The main goal of proposed system is to meet
the demand of low cost, low power consumption, small volume and real-time
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ReferencesReferences Ya-lin Miao†, Xiang-lin Miao, Zheng-Zhong Bian , Yong-jie Zhang
Xi’an Jiaotong University, Xi’an 710049, China “Design and Application of Embedded System Based on ARM7 LPC2104 Processor in Telemedicine” Proceedings of the 2005 IEEE
Engineering in Medicine and Biology 27th Annual Conference
Shanghai, China, September 1-4, 2005
Ying-Wen Bai, Chien-Yung Cheng, Chou-Lin Lu and Yung-Song Huang,
“Design and Implementation of an Embedded Remote ECG Measurement System” IMTC 2005 – Instrumentation and Measurement Technology Conference Ottawa, Canada 17-19 May 2005
Nivedita Daimiwal, Asmita Wakankar, Dipali Ramdasi and Mrunal Chandratreya “Microcontroller Based ECG and Blood Pressure Simulator”- J. Instrum. Soc. India 37(4) 243-248
Website: http://en.wikipedia.org/wiki/ECG Website: http://en.wikipedia.org/wiki/BloodPressure
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Thank You