PIEZOELECTRIC ENERGY HARVESTING ANDREMOTE HEALTH MONITORING

Presented by

AMIT KUMARSUMAN MONDAL

SUPRAMITA GHORAIUTTAM 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

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

‘Piezo’= PressurePressure creates electricity

Piezoelectricity

What is PIEZO!!!?

CONTD.

Piezoelectricity

How is the electricity produced by stress?

CONTD.

Piezoelectric Effect

Piezoelectricity

Piezo

Applied StressCreate Voltage

Animation Source: Wikipedia

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

Nanogenerator

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

Piezoelectric Energy Harvesting From Microfibres

Fig. (a) COMSOL Model of PZT and PVDF Microfibre

CONTD.

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

Piezo as Vibration Detector

Fig. (a) Interfacing of the piezo sensor with the Arduino

CONTD.

Piezo as Vibration Detector

Fig. (a) Schematic Fig. (b) Digital Picture

COMPUTER INTERFACING

CONTD.

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 DetectorOutput Graphs

Real World Examples

Energy harvesting Home Security system

Pulse Monitoring Via Bluetooth

SHM (Structural Health Monitoring)

Bluetooth Pairing With

Mobile

Fig. (a) Schematic Fig. (b) Digital PictureCONTD.

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

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

Future Prospects

Figure 1 - Brazil Stadium of Piezoelctric Tiles

Thank youAny Queries?

ARDUINO

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}

Program for Bluetooth Heart Rate Monitor

int count=0;unsigned long standard=60000;void setup() { Serial.begin(9600); // initializationSerial.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.

if (Serial.available() > 0) { // if the data cameincomingByte = Serial.read(); // read byteif(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