Foot step power generation system for rural energy application to run AC and DC loads BY V.PAVAN 12P81D5718
CONTENTS •
Introduction
•
Block Diagram
•
Power Supply
•
Working
•
Advantages
•
Applications
•
Conclusion
Introduction •
•
In this project we are generating electrical power as non-conventional method by simply walking or running on the foot step. Nonconventional energy system is very essential at this time to our nation. Nonconventional energy using foot step is converting mechanical energy into the electrical energy.
Man
has need and used energy at an increasing rate for his sustenance and well-being ever since he came on the earth a few million years ago.
Due
to this a lot of energy resources have been exhausted and wasted.
Proposal
for the utilization of waste energy of foot power with human locomotion is very much relevant and important for highly populated countries like India and China where the roads, railway stations, bus stands, temples, etc. are all over crowded and millions of people move around the clock.
This
whole human/ bio-energy being wasted if it can be made possible for utilization it will be great invention and crowd energy farms will be very useful energy sources in crowded countries This project uses piezoelectric sensor. In this project the conversion of the force energy in to electrical energy. The control mechanism carries the piezo electric sensor, A.C ripples neutralizer, unidirectional current controller and 12V, 1.3Amp lead acid dc rechargeable battery and an inverter is used to drive AC/DC loads.
piezoelectric sensor
A piezoelectric sensor is a device that uses the piezoelectric effect to measure pressure, ac celeration, strain or fo rce by converting them to an electricalsignal.
Inverter An inverter is an electrical device that converts direct current (DC) to alternating current (AC); the converted AC can be at any required voltage and frequency with the use of appropriate transformers, switching, and control circuits.
Block Diagram
Power Supply Unit
Lead Acid Battery
Specifications
12V 1.3Ah sealed lead acid battery
1. CE and RoHs 2. high quality and relaibility 3. miantenance free 4. long life cycle
12V 1.3Ah sealed lead acid battery
General Features:
Sealed and maintenance free operation.
Non-Spillable construction design.
ABS containers and covers(UL94HB, UL94-0)optional.
Safety valve installation for explosion proof.
High quality and high reliability.
Exceptional deep discharge recovery performance.
Low self discharge characteristic.
Features of AT89S52
ROM
- 8K bytes
RAM
- 256 bytes
Timer
-
I/O pins
- 32
Serial port
- 1
Interrupt sources - 8
3
PIN DIAGRAM P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 RST (RXD)P3.0 (TXD)P3.1 (INT0)P3.2 (INT1)P3.3 (T0)P3.4 (T1)P3.5 (WR)P3.6 (RD)P3.7 XTAL2 XTAL1 GND
1 2 3 4 5 6 7 AT89S52 8 9 10 11 12 13 14 15 16 17 18 19 20
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
Vcc P0.0(AD0) P0.1(AD1) P0.2(AD2) P0.3(AD3) P0.4(AD4) P0.5(AD5) P0.6(AD6) P0.7(AD7) EA/VPP ALE/PROG PSEN P2.7(A15) P2.6(A14) P2.5(A13) P2.4(A12) P2.3(A11) P2.2(A10) P2.1(A9) P2.0(A8)
Liquid crystal display (LCD):
A liquid crystal display (LCD) is a thin, flat panel used for electronically displaying information such as text, images, and moving pictures.
Its uses include monitors for computers, televisions, instrument panels, and other devices ranging from aircraft cockpit displays, to every-day consumer devices such as gaming devices, clocks, watches, calculators, and telephones.
Among its major features are its lightweight construction, its portability, and its ability to be produced in much larger screen sizes than are practical for the construction of cathode ray tube (CRT) display technology.
Pin Description of LCD: 1.
Ground
2.
Vcc +5V
3.
Contrast control
4.
Register select (RS)
5.
Read/Write (RD/WR)
6.
Enable (EN) 7 – 14 pins all are data pins D0 – D7
15. Vcc +5V } 16. Ground }
For backlight purpose
Working And
that minute voltage Which is stored in the Lead Acid battery. The battery is connected to the inverter. This inverter is used to convert the 12 Volt D.C to the 230 Volt A.C. This 230 Volt A.C voltage is used to activate the loads. We are using conventional battery charging unit also for giving supply to the circuitry. HWhen ever force is applied on piezo electric crystals that force is converted to Electrical energy is used to drive DC loads. ere we are using AT89S52 to display the amount of battery get charged whenever we place our foot on piezo electric transducer.
Technical Aspects The
function on AC ripple neutralizer is to filter the unwanted AC Flickering, noise. Unidirectional current controller: to oppose reverse flow. from conventional battery source it will be converted to 5v by using 7805 as a voltage regulator. Current Generated:15mA, Max Voltage:3.3-5V,Power: 0.75 watts. Battery ratings:12v,current ratings:1.3Ah/20hrs(discharging time).... one
piezo electric sensor generates:0.0125 approximately (from 1 sensor) and 16 sensors (2 v)
Advantages •
•
Reliable, Economical, Eco-Friendly. Less consumption of Non- renewable energies.
Extremely wide dynamic range, almost free of noise - suitable for shock measurement as well as for almost imperceptible vibration •
• • • • • • •
Excellent linearity over their dynamic range Wide frequency range, high frequencies can be measured Compact yet highly sensitive No moving parts - long service life Self-generating - no external power required Great variety of models available for nearly any purpose Integration of the output signal provides velocity and displacement
Applications Foot
step generated power can be used for agricultural, home applications, streetlighting.
Foot step power generation can be used
emergency power failure situations. Metros, Rural Applications etc.,
in
CONCLUSION The project “FOOT STEP POWER GENERATION FOR RURAL ENERGY APPLICATION TO RUN A.C. AND D.C. LOADS” is successfully tested and implemented which is the best economical, affordable energy solution to common people. This can be used for many applications in rural areas where power availability is less or totally absence. As India is a developing country where energy management is a big challenge for huge population. By using this project we can drive both a.c. as well as D.C loads according to the force we applied on the piezo electric sensor.
