FDR PresentationFDR Presentation
Personal Health Monitoring Personal Health Monitoring DeviceDevice
Bassam NoamanDina El-EissaMentor: Prof Zhenyu GuoInstructor: Prof J Silverman4/12/00
OverviewOverview
Sensors ECG Blood PressureTemperature
Signal ConditioningFilters, Amplifiers,Logic
PIC Microcontroller program interface
Palm pilotPC
Overall Block DiagramOverall Block Diagram
SpecificationSpecification Power Supply: 9.0 VDC Battery
Operating time 2.8 hours(from Standard 9.0 VDC Duracell battery) Inputs
Body Temperature SensorDetect Temperature in degree CelsiusRange between 25 C – 50.5 C
Blood Pressure Range between 0 – 5 Psi(259mmHg)Accuracy 0.125 @ 25 CManual cuff inflationMaximum systolic pressure 250 mmHg
ECGBandwidth 0.3Hz – 150 HzDetect Heart Rate in bpmOne lead ECG
SpecificationSpecification• Monitor Performance Specification
Palm Pilot screen record and plays the patient’s data file on the screen
PC screen displays the patient data file Recorded body temperature Systolic and diastolic blood pressure ECG waveform Heart rate Email this data file
Interfaces Cables to interface the human body to the device Serial interface from the device to the Palm Serial interface from the palm to PC
SpecificationSpecification• Indicators
LED power statusLED blood pressure visual detector
Memory Storage1 MB of Palm is allocated for health monitoring 55.6 minutes of display range
Block DiagramBlock Diagram Bassam
Knob
Dina
Bassam
Hi Pass Filter
Instrumentation Amplifier
Notch Filter
Low Pass Filter
2.5 VDC offset
Amplifier
ECG Sensor Blood Pressure Sensor Capacitive
Microphone
Comparison Circuit
Current Temperature Sensor
Amplifier
Super Diode
PIC16C72 8-bit Microcontroller
8-bit multichunnel A/D Converter
Palm Pilot
Band Pass Amplifier
LED
PC
MMV
SAmplifier
Temperature signal conditioner simulationTemperature signal conditioner simulation
R4
1k
R6
1k
U2
LM741
3
2
74
6
1
5+
-
V+V-
OUT
OS1
OS2
V1-270mVdcV R1
10k
298.0uA 0
D1
D1N4002
R5
100k
0V
R7
100k
0
0
0
I1298uAdc
R2
1k
0
V3-5Vdc
V2
5Vdc
0
2.980V
R3
1k
0
U1
LM741
3
2
74
6
1
5+
-
V+V-
OUT
OS1
OS2
Output voltage of the body Temperature sensorOutput voltage of the body Temperature sensor
Output voltage of the signal conditioner of the Output voltage of the signal conditioner of the body temperature sensorbody temperature sensor
Blood pressure measurementBlood pressure measurement
Blood pressure: is defined as the intra-arterial pressure generated by the pulsatic flow of blood through an artery.
The blood pressure is indicated from two numbers.Systolic:represents the pressure while the heart is beating. maximum value for blood pressure Diastolic: represents the pressure when the heart is resting between beats.
Flowchart for blood pressure measurementFlowchart for blood pressure measurement
Signal Conditioner of Capacitive Signal Conditioner of Capacitive MicrophoneMicrophone
+5
out1
+4
out2 LED OUTPUT
Microphone
JK FF
-2
R2
10k
R5
1k
+5
out4
K
+VCC
LED OUTPUT
-5
-VCC
OPA4137
R4
10k
-4
-1 +2C1
1n
C2
1n
+1
R3
1k
R6 1k
R1
1k
J
PUSH BUTTON
ECG Signal ConditionerECG Signal Conditioner
R7
1k
C2
1n
out2
R1
680
+4
C4
1u
R2
1k
AD620
LL
-4
C6.47u
-1
R9
1k
R10
40k
+2
+5
out4
out
RG 5k
+1
C1
1u 3.3M
1k
-2
RA
-5R82.7k +5
R4
1k
+VCC
-VCC
LA
OPA4137
-5R3
1k
C5
1u
out1
R6 2.7k
+2.5
Simulation of the frequency Simulation of the frequency domain of ECGdomain of ECG
Microcontroller circuitMicrocontroller circuit
8
1 14
+5+5
3
32
C51u
C21u
24
+5
temp
11
C6
33n
6
+5
43
C7
33n
C4
1u
C1 1u
123
BP
1
40
10
PIC 16F874
13
ECG
MAX232
2
C3
1u
31
Software design block diagramSoftware design block diagram
Actual Physical LayoutActual Physical Layout
Physical layout of the program Physical layout of the program interfaceinterface
DemonstrationDemonstration
Measure current temperature and blood pressure and display it on the palm.
Display temperature,blood pressure and ECG wave in Hyper terminal, then take the data and save it in a file. Finally display it on java applet.
ConclusionConclusion
The Palm pilot is not only an organizer, but also a device to monitor data(Blood pressure, Temperature)
AcknowledgementAcknowledgement
Mr YongningProf Zhenyu GuoMr Faisal YasinMr Jose HernandezMr Ken DrummondMr John PetrellaMr Muhammad Afridi