The footstep power generation technique through piezoelectric sensors produces electrical force by changing mechanical energy of the development of individuals on the floor to electrical energy.

1. FOOTSTEP POWER GENERATION
SYSTEM
• Presented by :-
V.T. Krishna[17690a0208]

2. • INTRODUCTION
• CONCEPT
• PIEZO ELECTRIC SENSOR
• SELECTION OF MATERIAL
• HOW IT WORKS
• PROS & CONS
• APPLICATIONS
• HARDWARE IMPLEMENTATION
• CONCLUSION
• REFERENCE
CONTENT

3. INTRODUCTION
• In this project we are generating energy as non conventional source
thorough walking or ,footstep.
• Walking is the most common activity in our life.
• As a person walks he/she releases an energy, this energy can be stored and
used as an electrical energy.
• The main principal of this project is based on piezoelectricity or piezo-
electric effect.

4. CONCEPT
The system generates voltage using footstep force. The system serves as a medium to
generate electricity using non-conventional sources (force) and /store/use it. The project is
designed to be useful at public places like railway stations where a lot of people keep
walking through all day. At such places these systems are to be placed at many entry points
where people travel through entrance or exits and they have to step on this device to get
through, These devices may then generate a voltage on every footstep and when mounted in
series they will produce a sizeable amount of electricity. For this purpose we here use
piezoelectric sensors that use piezoelectric effect in order to measure acceleration, force
,pressure by its conversion into electric signals. We have attach a voltmeter in order to
measure its output and small led lights for demonstration. We also use a battery and weight

5. The prefix piezo- is a Greek word which means to 'press‘ or 'squeeze'. A piezoelectric
sensor is an electric device which is used to measure acceleration, pressure, or force
to convert them to an electric signal. These sensors are mainly used for process
control, quality assurance, research and development in various industries. The
applications of this sensor involve, aerospace, medical, nuclear instrumentation,
and as a pressure sensor it is used in the touch pad of mobile phones. In the
automotive industry, these sensors are used to monitor ignition when developing
internal burning engines.
Piezoelectric Sensor

6. • Fig 1:- A pic for imagination on Sensor

7. Piezoelectric Effect is the ability of certain
materials to generate an electric charge in
response to applied mechanical stress
• Fig 2 :- A pic for imagination
WHATACTUALLY PIEZO-
ELECTRIC EFFECT IS..?

8. Selection of Material
• The main component of the project is the piezoelectric material. The proper choice of the piezo material is of
prime importance. For this, an analysis on the 2 most commonly available piezoelectric material – PZT(Lead
Zirconate Titanate) and PVDF( Polyvinylidene fluoride ), to determine the most suitable material was done. The
criterion for selection was better output voltage for various pressures applied. In order to understand the output
corresponding to the various forces applied, the V-I characteristics of each material namely, PZT and PVDF
were plotted. For this the Piezo transducer material under test is placed on a Piezo force sensor. Voltmeters are
connected across both of them for measuring voltages and an ammeter is connected to measure the current. As
varying forces are applied on the Piezo material, different voltage readings corresponding to the force is
displayed. For each such voltage reading across the force sensor, various voltage and current readings of the
Piezo test material are noted.

9. Fig 3:- A pic for imagination on V-I graph of PVDF material Fig 2: A pic for imagination on V-I graph of PZT

10. HOW IT WORKS
• The proposed system works as a medium to generate power using force.
... Whenever force is applied on piezoelectric sensor, then the force is
converted into electrical energy.
• The system allows for a platform for placing footsteps. The peizo sensors
are mounted below the platform to generate voltage from footsteps.The
sensors are placed in such an arrangement so as to generate maximum
output voltage.
• This is then provided to our monitoring circuitry. The circuit is a
microcontroller based monitoring circuit that allows user to monitor the
voltage and charges a connected battery by it.

11. • It also displays the charge generated and displays on an LCD display.
Also it consists of a USB mobile phone charging point where user may
connect cables to charge mobile phone from the battery charge. Thus we
charge a battery using power from user footsteps, display it on lcd using
microcontroller circuit andallow for mobile charging through the setup.

13. Hardware Specifications
• Power supply board
• Piezo sensor
• Battery
• Inverter
• CFL Lamps
• LED

14. ADVANTAGES :-
• Power generation is simply walking on foot
• No need of any fuel
• Non-conventional system
• Battery is used to store generated power
DISADVANTAGES :-
• Applicable for only particular place
• Initial cost of installation is high
• Care should be taken for batteries
• Mechanical moving parts are high

15. Applications :-
• Generated power can be used for mobile charging, street lightning, and other
applications.
• It can be used in emergency power failure situations.
• Application areas mainly involves in metros, temples, railway-stations and
many other crowded places.

16. Hardware implementation

17. Conclusion :-
• The project Footstep Power Generation uses the footstep to produce thr electricity. It is
one of the best economical and affordable energy solution to the common people.
• This can be for many application in rural areas where power available is less or totally
absent. As India is and developing nation where energy management is big challenge
for such a huge population.

18. Reference:-
• Gautschi, G.(2002). Piezoelectric sensors. Soring Berlin, Heidelberg,
New York.p.3
• Wali, R Paul(Oct-2012).”An electronic nose to differentiate aromatic
flowers using a real time information rich piezoelectric resonance
measurement”. Procedia Chemistry 194-202.