Microcontroller Based Heart Beat and Temperature Monitoring System using Fingertip Sensor

2. Microcontroller Based Heart Beat and
Temperature Monitoring System using
Fingertip Sensors

3. Member
Momin Khan UW-09-MTS-BE-023
Email: engr.mechatro@gmail.com
www.linkedin.com/in/engineermominkhan
Skype: engr-afridi
Supervisor
Mrs. Fadia Sohail

4.  Project Schedule
 Block Diagram
 Circuit Description
 Circuit Diagram
 Microcontroller
 LCD Interfacing
 Keypad and Buzzer Interfacing
 GSM Modem Interfacing
 Simulation Diagram
 Prototype Circuit
 Applications
 Conclusion
 Future Plans
 References

5. Tasks Oct
12
Nov
12
Dec
12
Jan
13
Feb
13
Mar
13
Apr
13
May
13
Jun
13
1 Literature
Review of
Sensors
2 Sensors
Analysis
3 Filter
4 Amplification
5 Signal
Processing with
Microcontroller
6 LCD Interface
7 GSM Modem &
Microcontroller
Interface
8 Results

6. Temperature Sensor
Heart Beat Sensor
Photo
diode
Finger
IR
AmplifierFilter
Micro-
controller
LCD
Display
GSM
Modem
Buzzer
keypad
LM
35

8.  Infrared(IR) Diode
 Light Emitting Diode
 Peak Wavelength λp=940nm
 Photo Diode
 Sense the Reflected light
 Fingertip Sensors are Connected
with PORT 3 of Microcontroller

10.  Connected with PORT 0 of
Microcontroller through ADC
 Range = -55℃ to150℃
 Operated from 3V to 30V

11. Two low Pass Filters
 Cut off Frequency = 2.5HZ
 Gain of each Filter = 101
 Resistor R1 = 680kΩ ,R2 = 6.8kΩ
 Capacitor 100nF

12.  Lm358
 Amplify weak Signals
 Operating Voltage=5V DC
 Operating Current=50 mA

14.  8051(AT89S52)
 4V to 5.5V Operating Range
 40 Pins on 8051
 4 I/O PORTS each PORT has 8 Pins
 32 Programmable I/O Lines
 Three 16 Bit Timer/Counters
 Full Duplex Serial Channel

15.  PORT 2 is used for LCD
◦ 20 Characters by 4 Lines Display
◦ 4 Bit Mode is use to save 4 Pins
on Microcontroller
 5V DC Power Supply
 16 pins on 20x4 LCD
 DB0 to DB7 are Data Pins
 Enable and Register select are for
LCD Control
 3 Pins for Power Supply

16.  Keypad Interface with PORT 1 of Microcontroller
 16 Button Keypad
 Keypad 4x4
 Keypad is used for setting the Range of Upper
and Lower Limit of Heart Beat and Temperature
 Buzzer Interface with PORT 3 of Microcontroller
 Alarm on when Temperature and Heart Beat
are out of Range

17.  GSM (Global System for Mobile Communication)
Interface with PORT 3
 GSM Modem for Transmission of Data
 Maximum Transmission Speed of
9.6 Kbps
 Provides Continuous Monitoring.
 We can also observe the Blood Pressure
of a Patient on the Cell Phone with the help
of GSM.

20.  Calculate Heart Rate.
 Calculate Temperature.
 Useful for Telemedicine.
 Send Alert in the form of SMS to Emergency Ambulance.
 Work any where in the Country (with GSM Availability).

21.  We Summarized the Progress with Respect to our
Project
 In Implementation of Wireless Systems for Patient
Monitoring System, the Heart Beat and Body
Temperature are Successfully Sensed.
 Hence both Parameters are Displayed on the LCD.
 Both the Parameters are Transmitted and Displayed in a
Distant location on Cell Phone using GSM Modem.

22.  This Device Can be Enhanced to Measure Blood
Pressure and ECG
 Audio Communications
 This System Can be Control from Mobile
 This Device Can be Communicate Through Bluetooth
and GPRS

23.  Range of Heart Rates per Minute and Average Heart
Rate for Various Ages”.
Available: http://www.smm.org/heart/lessons.htm
 Heart rate measurement from the finger using a low cost
microcontroller by Dogan Ibrahim and Kadri Buruncuk.
 http://www.brianmac.co.uk/maxhr.htm
 www.atmel.com