This document discusses piezoelectric energy harvesting and its applications in remote health monitoring. It introduces piezoelectricity and how stress creates voltage in piezoelectric materials. It then discusses using piezoelectric nanogenerators to harvest green energy and a piezoelectric vibration detector with Bluetooth to monitor heart rate and structures. The document presents various piezoelectric materials and prototypes including microfibers, circuits, and Arduino code for the detectors. It concludes with discussing using piezoelectric tiles in stadiums and prospects for further applications.

1. PIEZOELECTRIC ENERGY HARVESTING AND
REMOTE HEALTH MONITORING
Presented by
AMIT KUMAR
SUMAN MONDAL
SUPRAMITA GHORAI
UTTAM KUMAR SAHU
Under the supervision of
Mr. BISWAJIT MAHANTY
(Asst. Prof. & H.O.D, Dept. of E.C.E &
AEIE)
Saroj Mohan Institute Of Technology
Guptipara, Hooghly

2. INTRODUCTION
This project evolves on the two aspects of use of
piezoelectricity
 Green energy with the help of nanogenerators
 As a sensor for the development of a Vibration
Detector and Bluetooth Heart Rate Monitor for
Structural Health Monitoring (SHM)
Image Source: Google

3. ‘Piezo’= Pressure
Pressure creates electricity
Piezoelectricity
What is PIEZO!!!?
CONTD.

4. Piezoelectricity
How is the electricity produced by stress?
CONTD.

5. Piezoelectric Effect
Piezoelectricity
Piezo
Applied Stress
Create Voltage
Animation Source: Wikipedia

6. NATURAL SYNTHETIC
Quartz Lead Zirconate Taitanate (PZT)
Rochelle Salt Zinc Oxide (ZnO)
Topaz Barium Titanate (BaTiO3)
Sucrose Gallium Orthophosphate (GaPO4)
Tendon Potassium Niobate (KNbO3)
Silk Lead Titanate (PbTiO3)
Enamel Lithium Tantalate (LiTaO3)
Dentin Langasite (La3Ga3SiO14)
DNA Sodium Tungstate (Na2WO3)
MATERIALS

7. Nanogenerator
Fig. (a) Nanogenerator Circuit Fig. (b) Digital Picture

8. Piezoelectric Energy Harvesting From Microfibres
Fig. (a) COMSOL Model of PZT and
PVDF Microfibre
CONTD.

9. Fig. (a) 3D Plot of Electric Potential
for the PZT Microfibre
Fig. (b) 3D Plot of Electric Potential
for the PVDF Microfibre
Piezoelectric Energy Harvesting From Microfibres

10. Piezo as Vibration Detector
Fig. (a) Interfacing of the piezo sensor with the Arduino
CONTD.

11. Piezo as Vibration Detector
Fig. (a) Schematic Fig. (b) Digital Picture
COMPUTER INTERFACING
CONTD.

12. a) Ceramic Disc Sensor Piezoelectric response on repeated tapping by hand
b) Polymer P(VDF-HFP) Piezoelectric response on repeated tapping by hand
Piezo as Vibration Detector
Output Graphs

13. Real World Examples
Energy harvesting Home Security system

14. Pulse Monitoring Via Bluetooth
SHM (Structural Health Monitoring)
Bluetooth
Pairing
With
Mobile
Fig. (a) Schematic Fig. (b) Digital Picture
CONTD.

15.  Normal condition(74 peaks/min)
 After 3 minutes of Jogging(94 peaks/min) CONTD.
SHM (Structural Health Monitoring)
Output at the Computer Via Serial Monitor Interface of Arduino

16.  Pulse rate in Doctor’s smart phone
Fig. (a) As Data Value in Blue
Term app
Pulse Monitoring Via Bluetooth
Fig. (b) As graphical plotting in
Arduino Centrale

17. Future Prospects
Figure 1 - Brazil Stadium of Piezoelctric
Tiles

18. Thank you
Any Queries?

19. ARDUINO

20. Program for Vibration Detector
void setup() {
// initialize serial communication at 9600 bits per second:
Serial.begin(9600);
}
// the loop routine runs over and over again forever:
void loop() {
// read the input on analog pin 0:
int sensorValue = analogRead(A0);
// print out the value you read:
Serial.println(sensorValue);
delay(10); // delay in between reads for stability
}

21. Program for Bluetooth Heart Rate Monitor
int count=0;
unsigned long standard=60000;
void setup()
{
Serial.begin(9600); // initialization
Serial.println("Press 1 to receive data or 0 to STOP...");
}
void loop()
{
while (standard-millis()>0)
{
if(analogRead(A0)>50)
{
count=count+1;
while(analogRead(A0)>7)
{}
}
}
CONTD.

22. if (Serial.available() > 0)
{ // if the data came
incomingByte = Serial.read(); // read byte
if(incomingByte == '0')
{
Serial.println("Transmission Stopped. Press 1 to RECIEVE!"); // print
message
}
if(incomingByte == '1')
{
Serial.println("Pulse rate is:");
Serial.println(count);
}
}
}
Program for Bluetooth Heart Rate Monitor