This document summarizes a method for generating electricity from human footstep using piezoelectric materials. It discusses how piezoelectric sensors in footwear or flooring can convert the mechanical energy from walking or running into electrical energy. The document evaluates different piezoelectric materials and connection configurations to determine the most effective design. A series-parallel connection of piezoelectric crystals is found to generate both a usable voltage and current from footstep force. This approach aims to harness wasted human energy for power generation in a cleaner and more sustainable way.
This document describes a footstep power generation system that converts the kinetic energy from human footsteps into usable electricity. The system uses an array of piezoelectric sensors that generate voltage when pressure is applied. The voltage is stored in a lead-acid battery and can be used to power small DC loads. A microcontroller and LCD display are used to indicate the voltage level being stored in the battery. The system was designed and implemented to harvest wasted energy from human locomotion and demonstrate piezoelectric energy harvesting.
This document discusses the design and components of a footstep power generation system. The key components are a piezoelectric sensor that converts the kinetic energy of footsteps into an electrical signal, batteries to store the generated electricity, and an inverter to convert the stored DC power into usable AC power. Lead-acid batteries are commonly used due to their low cost and availability. When a person steps on the piezoelectric sensor, it produces a voltage that is stored in the batteries. The stored DC power can then be inverted and used to power small electronic devices.
1. The document describes a proposed footstep power generation system that would convert the mechanical energy of human footsteps into electrical energy.
2. The system would use a responsive sub-floor with blocks that depress under footsteps, generating power through a dynamo that converts motion to electricity.
3. While not enough for home use, the system has potential in crowded areas like transportation hubs where thousands of daily footsteps could generate meaningful amounts of electricity through a "crowd farm" approach.
This document presents a footstep power generation system that uses piezoelectric materials to convert the mechanical energy from human footsteps into electrical energy. It discusses the components required, including piezoelectric crystals, batteries, capacitors, and an inverter. The working principle is that piezoelectric materials generate a charge when pressure is applied, allowing the system to harness energy from walking. Applications include powering lights and devices in areas with foot traffic like schools, malls, and metro stations. The system has advantages of being eco-friendly and self-generating, but high initial costs and limited applicability in only one location.
Foot Step Power Generation Using Piezoelectric SensorsBabu Ajmal
This document describes a student project to generate electricity from footstep force using piezoelectric sensors. The project aims to address Pakistan's energy shortages by producing pollution-free and fuel-less energy at crowded locations. The system uses piezoelectric sensors below a plate to convert mechanical energy from footsteps into electrical energy, which is then regulated and stored in a battery using a microcontroller. The document outlines the group members, problem statement, objectives, block diagram, calculations estimating power output from varying numbers of footsteps, and potential future applications of piezoelectric energy harvesting from foot traffic in places like train stations.
Power generation in footsteps by Piezoelectric materialsMelwin Dmello
Power generation in footsteps by piezo electric transducers - A project work by students of Alva's institute of engineering and technology, Moodbidre, Mangalore....
Slides created by Melwin Dmello... (ph; 8147814891)
Piezo electric based harvesting is a kind of renewable energy which senses the mechanical vibration into electrical output. In this slide we have study the feasibility of a piezoelectric energy harvester capable to power up low power electronic and electrical circuit.
This document describes a system for generating electricity from footstep power using a piezoelectric sensor and microcontroller. The system works by converting the downward force of a footstep on a plate into rotational motion of a shaft connected to a generator. When a person steps on the plate, the piezoelectric sensor produces electricity that is stored in a battery. The stored power can then be used for applications like street lights, fans, or security alarms. The system provides an alternative renewable energy source and has potential to harness wasted foot traffic energy in crowded areas.
This document describes a footstep power generation system that converts the kinetic energy from human footsteps into usable electricity. The system uses an array of piezoelectric sensors that generate voltage when pressure is applied. The voltage is stored in a lead-acid battery and can be used to power small DC loads. A microcontroller and LCD display are used to indicate the voltage level being stored in the battery. The system was designed and implemented to harvest wasted energy from human locomotion and demonstrate piezoelectric energy harvesting.
This document discusses the design and components of a footstep power generation system. The key components are a piezoelectric sensor that converts the kinetic energy of footsteps into an electrical signal, batteries to store the generated electricity, and an inverter to convert the stored DC power into usable AC power. Lead-acid batteries are commonly used due to their low cost and availability. When a person steps on the piezoelectric sensor, it produces a voltage that is stored in the batteries. The stored DC power can then be inverted and used to power small electronic devices.
1. The document describes a proposed footstep power generation system that would convert the mechanical energy of human footsteps into electrical energy.
2. The system would use a responsive sub-floor with blocks that depress under footsteps, generating power through a dynamo that converts motion to electricity.
3. While not enough for home use, the system has potential in crowded areas like transportation hubs where thousands of daily footsteps could generate meaningful amounts of electricity through a "crowd farm" approach.
This document presents a footstep power generation system that uses piezoelectric materials to convert the mechanical energy from human footsteps into electrical energy. It discusses the components required, including piezoelectric crystals, batteries, capacitors, and an inverter. The working principle is that piezoelectric materials generate a charge when pressure is applied, allowing the system to harness energy from walking. Applications include powering lights and devices in areas with foot traffic like schools, malls, and metro stations. The system has advantages of being eco-friendly and self-generating, but high initial costs and limited applicability in only one location.
Foot Step Power Generation Using Piezoelectric SensorsBabu Ajmal
This document describes a student project to generate electricity from footstep force using piezoelectric sensors. The project aims to address Pakistan's energy shortages by producing pollution-free and fuel-less energy at crowded locations. The system uses piezoelectric sensors below a plate to convert mechanical energy from footsteps into electrical energy, which is then regulated and stored in a battery using a microcontroller. The document outlines the group members, problem statement, objectives, block diagram, calculations estimating power output from varying numbers of footsteps, and potential future applications of piezoelectric energy harvesting from foot traffic in places like train stations.
Power generation in footsteps by Piezoelectric materialsMelwin Dmello
Power generation in footsteps by piezo electric transducers - A project work by students of Alva's institute of engineering and technology, Moodbidre, Mangalore....
Slides created by Melwin Dmello... (ph; 8147814891)
Piezo electric based harvesting is a kind of renewable energy which senses the mechanical vibration into electrical output. In this slide we have study the feasibility of a piezoelectric energy harvester capable to power up low power electronic and electrical circuit.
This document describes a system for generating electricity from footstep power using a piezoelectric sensor and microcontroller. The system works by converting the downward force of a footstep on a plate into rotational motion of a shaft connected to a generator. When a person steps on the plate, the piezoelectric sensor produces electricity that is stored in a battery. The stored power can then be used for applications like street lights, fans, or security alarms. The system provides an alternative renewable energy source and has potential to harness wasted foot traffic energy in crowded areas.
This document describes a system for generating electricity from footstep power. It consists of a piezoelectric sensor that converts force from footsteps into electrical energy, which is then regulated and stored in a battery. An inverter is used to convert the DC power from the battery to AC power that can run loads. The system has applications in powering small devices for agriculture, homes, street lighting, or as a backup power source in rural areas or during outages.
This document describes a device that generates electricity through human foot steps. It contains the following key points:
- The device uses a dynamo and rack and pinion gear system to convert the rotational motion from foot steps into linear motion, which drives a magnet inside a coil to generate electricity.
- As a person steps on an iron plate, it drives a crankshaft and gear arrangement that moves a magnet back and forth in a coil, producing direct current electricity that can be stored in a battery.
- The stored electricity generated from foot traffic on busy stairways or speed bumps could provide a useful source of power for various applications.
The document describes a project to generate electricity from human footfalls using piezoelectric sensors. Piezoelectric materials generate voltage when pressure is applied. The project involves arranging piezoelectric generators under a mechanical structure where people walk. The voltage generated is stored in a lead acid battery. An Arduino microcontroller is used to control the system and display electrical parameters on an LCD screen. The goal is to develop a cleaner, cost-effective alternative energy source by harnessing wasted kinetic energy from human walking.
This document presents a seminar on footstep power generation systems. It introduces piezoelectric materials that can generate electric charges when pressure is applied. The system works by using piezoelectric transducers under a footstep arrangement to convert mechanical energy from footsteps into electrical energy. This variable voltage is stabilized and stored in a battery, then inverted to AC power. Footstep power generation has advantages like being renewable, eco-friendly, and requiring no external power or much maintenance. However, it also has high initial costs and implementation challenges. Potential applications include emergency power, agriculture, homes, and street lighting.
Energy Generation by using PIEZOELECTRIC MATERIALS and It’s Applications.Animesh Sachan
1. The document discusses piezoelectricity as an alternative energy source that can harness ambient vibrations and convert them into electrical energy.
2. It provides background on the discovery of piezoelectricity and describes how certain materials generate electric charges when subjected to mechanical stress.
3. Examples of applications are given such as harvesting energy from footfalls using piezoelectric crystals in floors, roads and footwear to power devices and streetlights.
Group members Muhammad Ajmal F-4294, Waseem Sarwar F-4290, and Maria Anum F-4244 propose a project to generate power through footstep using piezoelectric materials. The project would involve installing piezoelectric sensors on staircases or platforms in places like homes, schools, and colleges to convert the mechanical energy of people walking or running into electrical energy that can be stored and used for domestic purposes or charging devices like laptops and mobiles.
The document discusses the piezoelectric effect and its application in footstep energy generation. It describes how Pierre and Jacques Curie discovered the piezoelectric effect in 1880. The effect generates electric charge in materials like quartz when subjected to mechanical stress. One application is installing piezoelectric sensors on pathways or in shoes to harvest energy from footsteps, which can be stored in batteries and used to power loads. A project in France has implemented this successfully to provide rural energy without dependence on other sources.
Its a free source of energy we know very well man has needed and used energy at an increasing rate for the sustenance and well-being since time immemorial. 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 where the railway station, temples etc., are overcrowded all round the clock .When the flooring is engineered with piezo electric technology, the electrical energy produced by the pressure is captured by floor sensors and converted to an electrical charge by piezo transducers, then stored and used as a power source. And this power source has many applications as in agriculture, home application and street lighting and as energy source for sensors in remote locations.
The document describes a system for generating electricity from footstep power using piezoelectric materials. Piezoelectric transducers placed under foot traffic areas produce small electric charges when compressed by footsteps. These charges are collected and stored in batteries. Key components of the system include piezoelectric sensors, rectifiers to convert AC to DC, regulators to maintain voltage levels, and a microcontroller to monitor battery charging levels displayed on an LCD screen. The document discusses applications of such footstep power generation systems in heavy foot traffic areas like train stations to harness renewable energy from human movement.
The document summarizes a seminar on footstep power generation. It describes how the up and down motion of footsteps on pressure plates can be used to generate electricity. The basic principle is that when a pedestrian steps on a plate, it dips down and rotates a shaft connected to a generator to produce electrical energy. The system has applications in places with heavy foot traffic like train stations, airports, and parking lots. It provides a renewable source of energy without pollution and can power lights, fans and other small devices. While initial costs are high, it efficiently captures wasted kinetic energy from walking.
The document presents a student project that aims to produce renewable energy from footstep using piezoelectric disks. The project goals are to help overcome electricity crisis in Bangladesh and produce energy from a source that does not harm the environment. The document outlines the invention history of piezoelectricity, components of the circuit including piezoelectric sensors, rectifier, battery and inverter. It explains how piezoelectric sensors work and the working principle. Simulation results show the system can produce 0.312 kW of power per week. Future applications discussed include harvesting energy from rain drops, piezoelectric insoles and passing trains.
Foot Step Power Generation Using piezoelectric materialBabu Ajmal
This document describes a student project that aims to generate electrical energy using piezoelectric materials in response to footstep force. The project seeks to address Pakistan's issue of power demand exceeding supply by providing an alternative pollution-free energy source. It will incorporate a piezoelectric transducer, battery, microcontroller, and LCD display. The timeline outlines literature review, software/hardware design, and report writing over several months. The objectives are utilizing wasted human energy through 'crowd energy farms' and generating power without fuel or noise/pollution. The expected outcome is a system that uses footstep voltage to run loads and shows sensor output/battery parameters on an LCD.
The document discusses piezoelectric energy harvesting. It begins by introducing piezoelectricity and its ability to convert mechanical energy into electrical energy. It then describes the key components of a piezoelectric energy harvesting system: a piezoelectric ceramic to generate voltage, a rectifier to convert AC to DC, a boost converter to increase voltage, and a lithium battery charger to store energy. The document provides details on each component and discusses applications like powering street lights or recharging electric car batteries using piezoelectric materials. It concludes that piezoelectric energy harvesting is an efficient way to harness ambient vibrational energy and provides a compact, low-cost solution for powering portable electronics.
Major project synopsis ON FOOT STEP POWER GENERATIONSahil arora
This document summarizes a student project that aims to generate electricity from footstep power. The project converts the kinetic energy from walking or running on an inclined stepping plate into electrical energy using a rack and pinion mechanism connected to a generator. The generated DC power is stored in a battery and then converted to AC power using an inverter. Potential applications include power generation in places with many footfalls like colleges, shopping complexes, and transportation hubs to provide a renewable source of electricity.
This document describes a footstep energy generation system that converts the kinetic energy from human footsteps into electrical energy. It discusses how piezoelectric materials in the system generate electricity when compressed by footsteps. The generated electricity can then be stored in batteries and used for applications like street lighting. The system provides a sustainable energy source for places with high foot traffic and has been installed in some locations around the world.
This project report summarizes a footstep power generation system developed by two students, Pankaj m mori and Sachin k dhakad. The report describes the design and implementation of a system that uses piezoelectric sensors to convert the mechanical energy from human footsteps into electrical energy. It provides details on the components used, including piezoelectric sensors, a rectifier, capacitor, and voltage meter. The report also discusses how piezoelectric materials generate voltage when pressure is applied and the various applications of such a footstep power generation system.
The document summarizes a seminar presentation on HVDC (high voltage direct current) transmission. Some key points:
- HVDC transmission has advantages over HVAC like lower transmission losses over long distances. The first HVDC link was between Gotland and mainland Sweden in 1954.
- HVDC uses direct current instead of alternating current to transmit electricity over long distances. It requires only two conductors instead of three. Losses are also lower compared to HVAC.
- HVDC transmission can be classified as homopolar, monopolar or bipolar depending on the conductor configuration. Early HVDC projects in India included the Rihand-Delhi and Chandrapur-Padghe lines which helped transmit
This document describes a hydraulically operated device that is 30.48cm wide and 25.4cm tall. The device uses hydraulics to operate but provides no other details about its function or purpose.
This document describes a footstep power generation system that converts the mechanical energy from walking or running into electrical energy using piezoelectric sensors. The electrical energy is stored in a lead acid battery and can be used to power AC and DC loads. An inverter converts the DC battery voltage to AC voltage. The system provides a low-cost renewable energy solution that could power rural applications and emergency situations by harvesting wasted human biomechanical energy.
This document describes a system for generating electricity from footstep power. It consists of a piezoelectric sensor that converts force from footsteps into electrical energy, which is then regulated and stored in a battery. An inverter is used to convert the DC power from the battery to AC power that can run loads. The system has applications in powering small devices for agriculture, homes, street lighting, or as a backup power source in rural areas or during outages.
This document describes a device that generates electricity through human foot steps. It contains the following key points:
- The device uses a dynamo and rack and pinion gear system to convert the rotational motion from foot steps into linear motion, which drives a magnet inside a coil to generate electricity.
- As a person steps on an iron plate, it drives a crankshaft and gear arrangement that moves a magnet back and forth in a coil, producing direct current electricity that can be stored in a battery.
- The stored electricity generated from foot traffic on busy stairways or speed bumps could provide a useful source of power for various applications.
The document describes a project to generate electricity from human footfalls using piezoelectric sensors. Piezoelectric materials generate voltage when pressure is applied. The project involves arranging piezoelectric generators under a mechanical structure where people walk. The voltage generated is stored in a lead acid battery. An Arduino microcontroller is used to control the system and display electrical parameters on an LCD screen. The goal is to develop a cleaner, cost-effective alternative energy source by harnessing wasted kinetic energy from human walking.
This document presents a seminar on footstep power generation systems. It introduces piezoelectric materials that can generate electric charges when pressure is applied. The system works by using piezoelectric transducers under a footstep arrangement to convert mechanical energy from footsteps into electrical energy. This variable voltage is stabilized and stored in a battery, then inverted to AC power. Footstep power generation has advantages like being renewable, eco-friendly, and requiring no external power or much maintenance. However, it also has high initial costs and implementation challenges. Potential applications include emergency power, agriculture, homes, and street lighting.
Energy Generation by using PIEZOELECTRIC MATERIALS and It’s Applications.Animesh Sachan
1. The document discusses piezoelectricity as an alternative energy source that can harness ambient vibrations and convert them into electrical energy.
2. It provides background on the discovery of piezoelectricity and describes how certain materials generate electric charges when subjected to mechanical stress.
3. Examples of applications are given such as harvesting energy from footfalls using piezoelectric crystals in floors, roads and footwear to power devices and streetlights.
Group members Muhammad Ajmal F-4294, Waseem Sarwar F-4290, and Maria Anum F-4244 propose a project to generate power through footstep using piezoelectric materials. The project would involve installing piezoelectric sensors on staircases or platforms in places like homes, schools, and colleges to convert the mechanical energy of people walking or running into electrical energy that can be stored and used for domestic purposes or charging devices like laptops and mobiles.
The document discusses the piezoelectric effect and its application in footstep energy generation. It describes how Pierre and Jacques Curie discovered the piezoelectric effect in 1880. The effect generates electric charge in materials like quartz when subjected to mechanical stress. One application is installing piezoelectric sensors on pathways or in shoes to harvest energy from footsteps, which can be stored in batteries and used to power loads. A project in France has implemented this successfully to provide rural energy without dependence on other sources.
Its a free source of energy we know very well man has needed and used energy at an increasing rate for the sustenance and well-being since time immemorial. 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 where the railway station, temples etc., are overcrowded all round the clock .When the flooring is engineered with piezo electric technology, the electrical energy produced by the pressure is captured by floor sensors and converted to an electrical charge by piezo transducers, then stored and used as a power source. And this power source has many applications as in agriculture, home application and street lighting and as energy source for sensors in remote locations.
The document describes a system for generating electricity from footstep power using piezoelectric materials. Piezoelectric transducers placed under foot traffic areas produce small electric charges when compressed by footsteps. These charges are collected and stored in batteries. Key components of the system include piezoelectric sensors, rectifiers to convert AC to DC, regulators to maintain voltage levels, and a microcontroller to monitor battery charging levels displayed on an LCD screen. The document discusses applications of such footstep power generation systems in heavy foot traffic areas like train stations to harness renewable energy from human movement.
The document summarizes a seminar on footstep power generation. It describes how the up and down motion of footsteps on pressure plates can be used to generate electricity. The basic principle is that when a pedestrian steps on a plate, it dips down and rotates a shaft connected to a generator to produce electrical energy. The system has applications in places with heavy foot traffic like train stations, airports, and parking lots. It provides a renewable source of energy without pollution and can power lights, fans and other small devices. While initial costs are high, it efficiently captures wasted kinetic energy from walking.
The document presents a student project that aims to produce renewable energy from footstep using piezoelectric disks. The project goals are to help overcome electricity crisis in Bangladesh and produce energy from a source that does not harm the environment. The document outlines the invention history of piezoelectricity, components of the circuit including piezoelectric sensors, rectifier, battery and inverter. It explains how piezoelectric sensors work and the working principle. Simulation results show the system can produce 0.312 kW of power per week. Future applications discussed include harvesting energy from rain drops, piezoelectric insoles and passing trains.
Foot Step Power Generation Using piezoelectric materialBabu Ajmal
This document describes a student project that aims to generate electrical energy using piezoelectric materials in response to footstep force. The project seeks to address Pakistan's issue of power demand exceeding supply by providing an alternative pollution-free energy source. It will incorporate a piezoelectric transducer, battery, microcontroller, and LCD display. The timeline outlines literature review, software/hardware design, and report writing over several months. The objectives are utilizing wasted human energy through 'crowd energy farms' and generating power without fuel or noise/pollution. The expected outcome is a system that uses footstep voltage to run loads and shows sensor output/battery parameters on an LCD.
The document discusses piezoelectric energy harvesting. It begins by introducing piezoelectricity and its ability to convert mechanical energy into electrical energy. It then describes the key components of a piezoelectric energy harvesting system: a piezoelectric ceramic to generate voltage, a rectifier to convert AC to DC, a boost converter to increase voltage, and a lithium battery charger to store energy. The document provides details on each component and discusses applications like powering street lights or recharging electric car batteries using piezoelectric materials. It concludes that piezoelectric energy harvesting is an efficient way to harness ambient vibrational energy and provides a compact, low-cost solution for powering portable electronics.
Major project synopsis ON FOOT STEP POWER GENERATIONSahil arora
This document summarizes a student project that aims to generate electricity from footstep power. The project converts the kinetic energy from walking or running on an inclined stepping plate into electrical energy using a rack and pinion mechanism connected to a generator. The generated DC power is stored in a battery and then converted to AC power using an inverter. Potential applications include power generation in places with many footfalls like colleges, shopping complexes, and transportation hubs to provide a renewable source of electricity.
This document describes a footstep energy generation system that converts the kinetic energy from human footsteps into electrical energy. It discusses how piezoelectric materials in the system generate electricity when compressed by footsteps. The generated electricity can then be stored in batteries and used for applications like street lighting. The system provides a sustainable energy source for places with high foot traffic and has been installed in some locations around the world.
This project report summarizes a footstep power generation system developed by two students, Pankaj m mori and Sachin k dhakad. The report describes the design and implementation of a system that uses piezoelectric sensors to convert the mechanical energy from human footsteps into electrical energy. It provides details on the components used, including piezoelectric sensors, a rectifier, capacitor, and voltage meter. The report also discusses how piezoelectric materials generate voltage when pressure is applied and the various applications of such a footstep power generation system.
The document summarizes a seminar presentation on HVDC (high voltage direct current) transmission. Some key points:
- HVDC transmission has advantages over HVAC like lower transmission losses over long distances. The first HVDC link was between Gotland and mainland Sweden in 1954.
- HVDC uses direct current instead of alternating current to transmit electricity over long distances. It requires only two conductors instead of three. Losses are also lower compared to HVAC.
- HVDC transmission can be classified as homopolar, monopolar or bipolar depending on the conductor configuration. Early HVDC projects in India included the Rihand-Delhi and Chandrapur-Padghe lines which helped transmit
This document describes a hydraulically operated device that is 30.48cm wide and 25.4cm tall. The device uses hydraulics to operate but provides no other details about its function or purpose.
This document describes a footstep power generation system that converts the mechanical energy from walking or running into electrical energy using piezoelectric sensors. The electrical energy is stored in a lead acid battery and can be used to power AC and DC loads. An inverter converts the DC battery voltage to AC voltage. The system provides a low-cost renewable energy solution that could power rural applications and emergency situations by harvesting wasted human biomechanical energy.
In an age where every teeny tiny bit of electricity is valued, conservation is much talked about, can piezoelectricity be the messiah to ease the burden off the conventional energy sources?
Who says it cannot?
--
Presentation as a part of seminar coursework.
In this project we are generating electrical energy by means of a non- conventional method just by walking on the footsteps. Non conventional system for energies are very much required at this time. Energy generation using footsteps requires no any fuel input to generate electricity. In this project we are generating electricity just with the help of rack and pinion arrangement along with alternator and chain drive mechanism.
For its proper functioning such that it converts Force into electrical energy, the mechanism consists of rack & pinion, chain drives, alternator and battery. We have discussed its various alternate applications with extension also. The power generation is much worthy but it has little initial cost effective factors.
This document describes a proposed system for generating electricity from footstep energy. It consists of a footstep plate that is depressed when walked on, activating a rack and pinion gear mechanism connected to a generator. The generator produces DC power that is stored in a battery. An inverter converts the DC to AC power that can power lights or other loads. It has applications for powering street lights or in crowded areas. The system converts wasted human kinetic energy from walking into usable electricity.
The document discusses three mechanisms: the pantograph, swinging/rocking mechanisms, and the Geneva mechanism.
The pantograph is a mechanical linkage that allows identical or scaled copies of an image to be traced. Swinging/rocking mechanisms use cranks, slots, levers or cams to produce oscillating motions of less than 360 degrees.
The Geneva mechanism uses a pin on a rotating drive wheel that engages with a slot on the driven wheel to produce intermittent rotary motion, advancing it by one step. It was first used in mechanical watches and has applications in movie projectors and automation equipment.
Piezoelectric electric based energy harvestingSubash John
Piezoelectric materials can generate an electric charge when subjected to mechanical stress. This phenomenon known as the piezoelectric effect enables piezoelectric materials to convert mechanical vibrational energy into electrical energy through a process known as energy harvesting. Common sources of vibration that can be used for piezoelectric energy harvesting include footsteps on sidewalks, movements from gym equipment, and vibrations from vehicles. The electric energy produced can be stored in batteries or capacitors and used to power small electronic devices. Piezoelectric materials have applications in various technologies including ultrasound imaging, sensors, musical instruments, and automotive engine management systems.
This document summarizes a finite element study of piezoelectric thin films on substrates. It outlines the background on piezoelectricity, modeling preliminaries including governing equations and material properties. It then lists the main tasks which include analyzing the effects of periodicity, lattice mismatch, and different film-substrate properties on the piezoelectric response and internal stress. Publications resulting from this work are also listed.
This document proposes a system to generate electricity from footsteps using piezoelectric materials. It would involve installing piezoelectric generators under sidewalks, train station floors, and other crowded areas. When people walk over them, the downward pressure would be converted into rotational energy through attached alternators to produce a small amount of electricity. The document outlines the basic principles, possible arrangements, real-world installations, applications, advantages like being fuel-free and suitable for dense urban areas, and disadvantages like high initial costs. It concludes that such a system could provide a natural and reliable source of limited electricity through harvesting wasted footstep energy.
The document proposes a method to generate electricity from human footfall called the Power Producing Platform. It consists of mechanical setups under a flooring system that compress to turn dynamos when people walk over it. The electricity generated can be stored in batteries and used to power local needs. It suggests installing these in highly populated areas like railway stations where large crowds can generate significant power through their daily movement.
This document discusses piezoelectric energy harvesting. Chapter 1 introduces piezoelectricity and the piezoelectric effect, as well as the need for energy harvesting. Piezoelectric materials convert mechanical energy into electrical energy. Chapter 2 provides a literature survey, discussing available piezoelectric materials like PVDF polymer, as well as components used in energy harvesting systems, such as piezoelectric cells, sensors, actuators, DC converters, and amplifiers. Chapter 3 will describe a piezoelectric energy harvesting system and its engineering design process. The document examines applications of piezoelectric energy harvesting.
This document provides technical specifications for a footstep power generation system that converts mechanical energy from footfalls into electrical energy using piezoelectric sensors. The system uses piezoelectric transducers to convert kinetic energy from footsteps into alternating current, which is then rectified and regulated to charge a 12V lead-acid battery. An inverter connected to the battery converts the direct current into alternating current to power various loads. The system is intended for use in rural areas to provide off-grid energy from foot traffic in locations like train stations, bus stops, temples and other crowded places.
This document is a major project report on power generation using foot steps. It discusses the basic principles, need for non-conventional energy sources, layout and parts of the foot step power generation system. The system works by converting the downward force of a foot onto the step into rotational motion, which turns a generator to produce electricity. The electricity is stored in a battery and can power lights, fans or other devices. While initial costs are high, it provides a simple way to generate power from footsteps without fuel. The report concludes the system has potential applications in places with high foot traffic.
This document discusses various methods of wireless electrical power generation including piezoelectric, induction, pyroelectric, electrodynamic induction, electrostatic induction, and electrical conduction methods. Piezoelectric materials convert mechanical strain energy into electrical charge through the direct and converse piezoelectric effects. Induction uses electromagnetic coupling through mutual induction to transfer energy between circuits without direct connection. Pyroelectric materials convert temperature changes into electric current or voltage. Electrodynamic induction uses resonant inductive coupling to improve efficiency over distance compared to non-resonant induction. Future applications discussed include powering wearable electronics and generating electricity from human motion at train stations.
Piezoelectric Energy Harvester - Capstone DesignMehnaz Newaz
•The complete design of a real size piezoelectric system, enabling to harvest from roads and generate, store, and supply electricity to light up street lights.
•Sizing and construction of a scaled down prototype of the real size piezoelectric energy harvesting system, Storage of electrical energy outputted from system, supplying power to the load and smart system, Power monitoring system to monitor energy stored, supplied, and outputted.
•Complete PCB Design and circuit board building in accordance with Arduino UNO Rev-3 on EagleCAD as well as LCD to display readings.
•Prototype commissioning and performance testing of entire system comprised of 3 main subsystems: Generation, Power Storage, and Power Monitoring System
Power Generation Using Piezoelectric TransducerIJERA Editor
The most basic need of today’s world is energy which is non-renewable source of energy available on earth. The
need is increasing day by day, to overcome this there is requirement of energy harvesting. This paper attempts
to show how man has been utilizing and optimizing kinetic energy. Current work also illustrates the working
principle of piezoelectric crystal and various sources of vibration for the crystal. “The idea of energy harvesting
is applicable to sensors as well as transducers that are placed and operated on some entities for a long time to
replace the sensor module batteries. Such sensors are commonly called self-powered sensors.” Embarked
piezoelectric transducer, which is an electromechanical converter, undergoes mechanical vibrations therefore
produce electricity. This power source has many applications as in agriculture, home application and street
lighting and as energy source for sensors in remote locations
This document is a thesis submitted by Adarsha Pattnayak for the partial fulfillment of a diploma in electrical engineering. It proposes a footstep power generation system that uses piezoelectric sensors to convert the mechanical energy from footsteps into electrical energy. When pressure is applied to the piezoelectric sensors, an alternating current voltage is generated. This voltage is then rectified using a diode bridge to convert it to direct current, which is stored in a capacitor. The stored electrical energy can then be used to power small devices or supplement other power sources. The system aims to harness wasted footstep energy in crowded public places to generate electricity.
Electricity from vibration & its impactSagardwip das
With the growing demands of human needs the utilisation of conventional energy has increased tremendously. Consequently environmental issues like global warming etc. have risen. Keeping these facts in view this model has been prepared to present an idea on how the daily energy requirement can be fulfilled in a more practical, feasible and economical way by converting mechanical energy of vibration into electric energy
This document describes a project to generate electricity from footstep force using piezoelectric sensors. The system is intended to harness wasted human locomotion energy and convert it to usable electricity. It works by using piezoelectric crystals that generate a voltage when pressure is applied from stepping on them. This voltage can then be stored in a lead acid battery and used to power small electronic devices. The document outlines the components, working principle, advantages and potential applications of using this footstep power generation system in places with high foot traffic like train stations or malls.
Approach To Power Harvesting With Piezoelectric MaterialIJERA Editor
Nowadays, most of the research in the energy field is to develop sources of energy for the future, With oil resources being over, tapped and eventually bound to end, it is time to find renewable Piezoelectric materials are being more and more studied as they turn out to be very unusual materials with very specific and interesting properties. In fact, these materials have the ability to produce electrical energy from mechanical energy, for example, they can convert mechanical behavior like vibrations into electricity. Recent work has shown that these materials could be used as power generators, the amount of energy produced is still very low, hence the necessity to optimize them. The objective of this work is to study the all of the piezoelectric material systems and calculated the possible power generated from it, and a special case to design and build a fully functional floor tile device that when stepped on will generate enough energy to light an LED, The system will be charge a temporary energy storage device, a capacitor bank, and then use this stored energy to power an LED.
This document describes a proposed eco-friendly electricity generator that uses piezoelectric materials. Piezoelectric materials generate an electric charge when mechanically strained. The document discusses using arrays of piezoelectric crystals embedded in structures like sidewalks, roads, and floors that are subjected to human or vehicle traffic. The vibrations and pressures from people walking or driving would strain the crystals and produce electric charges that could be harvested and stored in batteries. The document proposes several specific applications of this concept, such as embedding crystals in roads, sidewalks, dance floors, keyboards, and floor tiles. It suggests this could provide a pollution-free source of electricity for powering lights, buildings or other devices by capturing energy that is normally
Energy Harvesting on Footsteps Using Piezoelectric based on Circuit LCT3588 a...IJECEIAES
This document describes a study on harvesting energy from human footsteps using piezoelectric transducers. The study designed an energy harvesting device using 40 piezoelectric elements arranged in parallel to generate voltage and current when subjected to pressure from footsteps. An energy harvesting circuit and boost converter circuit were used to increase the low voltage piezoelectric output. Testing found it took approximately 10 steps to charge four AA 1.2V batteries and 80 steps to charge a 12V battery. An Arduino microcontroller was used to control the energy harvesting circuit and relay to direct power from the AA batteries to charge the 12V battery.
IRJET- Energy Generation and Implementation of Power Floor(Pavegen)IRJET Journal
This document discusses a technology called Pavegen that can generate electricity from human footfalls. Pavegen tiles contain piezoelectric materials that generate electric current when stepped on. The document outlines how Pavegen works, including how footstep energy is converted to electricity via piezoelectric crystals and stored in batteries. It also discusses applications of this renewable energy technology in areas with high human foot traffic. The technology could power small devices and provide off-grid energy access while producing power through normal daily human activity.
Nano generators by Tanveer ahmed Ganganalli seminar reportMD NAWAZ
The document discusses different types of nanogenerators that can harvest energy from human motion and the environment. It describes piezoelectric nanogenerators that use the piezoelectric effect of materials like zinc oxide to generate electricity from mechanical stress. Triboelectric nanogenerators are introduced that can directly convert mechanical energy to electricity using triboelectric charging and electrostatic induction. Pyroelectric nanogenerators are also mentioned that can harvest thermal energy from temperature fluctuations using pyroelectric materials. The working principles of triboelectric nanogenerators are explained in detail, including the vertical contact-separation mode and lateral sliding mode of operation.
A study on piezoelectric elements and its utility in designingAlexander Decker
The document discusses using piezoelectric elements to power an electronic scale. It begins by introducing piezoelectricity and how mechanical stress can generate electricity in certain materials. It then describes different configurations for piezoelectric elements and experiments testing the voltage output of different numbers of elements connected in series. The experiments found that connecting multiple elements in series increased the steady output voltage. The document proposes using 2-3 sets of 4 piezoelectric elements in parallel to power the electronic scale, with the elements generating sufficient power for the low-voltage electronics.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Small scale generation by harnessing the wind energyeSAT Journals
Abstract Generating electricity from wind has been centered around the rotation rotating windmill in which rotating shaft coupled to the generator used to generate electricity. Other sources such as solar power hydropower, thermal power, wind power are used for generating electricity in kilo watts and megawatt but there is no such kind of application which can generate electricity on sub 100watt scale. So as to generate electricity on small scale and to provide cheap source of energy for lighting the houses in remote where there is no other sources are available. And to generate a power source that can be constructed with the help of local material and if problem occurs that can be fixed by the local people. About 2% of global electricity production comes from wind-powered generators. Their capacity has doubled in the past few years. In some countries it is more popular than solar energy because it is cheaper on a cost per watt basis. However, for powering small devices there has been minimal activity to harvest energy from the wind. This is because conventional electromagnetic wind turbines require rotating fins and gearing which adds bulk, and they become less efficient when scaled down. Key Words: Harnessing, Wind Energy, Rotating Shaft
development of piezoelectric nano generator with super-capacitorINFOGAIN PUBLICATION
Harvesting mechanical energy from human motion is an attractive approach for obtaining clean and sustainable electric energy to power wearable sensors, which are widely used for health monitoring, activity recognition, gait analysis and so on. This paper studies a piezoelectric energy based device which conserve mechanical energy in shoes originated from human motion. The device is based on a on a pressure based energy generation. Besides, consideration is given to both high performance durability and build with repect to keeping the comfort in mind . The device provides an average output power of 1 mW during a walk at a frequency of roughly 1 Hz., a direct current (DC) power supply is built through integrating the device with a power management circuit.
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
ISSN(Online): 2319 - 8753
ISSN (Print) :2347 - 6710
International Journal of Innovative Research in Science,
Engineering and Technology
(An ISO 3297: 2007 Certified Organization)
Vol. 4, Issue 2, February 2015
Copyright to IJIRSET DOI: 10.15680/IJIRSET.2015.0402049 225
Real Time Battery Charging System by
Human Walking
Phagna Esha Singh1, Siddhakar Bhumi2, Rami Monika3
U.G. Student, Department of Biomedical Engineering, Government Engineering College, Gandhinagar, Gujarat, India1
U.G. Student, Department of Biomedical Engineering, Government Engineering College, Gandhinagar, Gujarat, India2
U.G. Student, Department of Biomedical Engineering, Government Engineering College, Gandhinagar, Gujarat, India3
ABSTRACT: With the extend use of technology, it has been the vital function to develop something new in both
software and hardware. A worn out battery or a lost charges are the two difficulties every electronic device user
undergoes through. To overcome this we, the biomedical engineering students, have proposed a new technology to
adopt charging of these portable electronic devices with the help of human walking. Walking is the best and common
activity in day to day life. As per the study of biomechanics, we came to realize that ground reaction force (GRF)
exerted from the foot, when converted into voltage gives enough power supply to run a device. While walking the
person loses some energy from foot in the form of vibrations which are sensed and converted into electric form.
Piezoelectric crystal does the work of generating output out of foot moment. Piezoelectric materials have the capability
of absorbing mechanical energy from surroundings, especially vibrations and transform it into electric energy that can
be used as power supply in real time to other appliances like mobile phones, power banks, various small handy
biomedical instruments etc. This project can be implemented while jogging in the morning, gym, walking on trade-mill,
in dense populated areas like railways, bus stands, etc
KEYWORDS: battery, bio energy, biomechanics, generation, ground reaction force , GRF, Piezo electric crystal,
power supply, portable units, walking,.
I. INTRODUCTION
The world’s energy consumption is at an all the time high with the demand continuously increasing. With the advent
use of portable machines in this technological world; it has become a major issue of power source. The situation brings
up several challenges that need to be addressed.
1.) Power supply.
2.) Battery discharging.
3.) Availability of power source.
End with turning off the machine without battery
In Biomechanics, the ground reaction force, GRF is the force exerted by the ground on the body in contact with it. For
example ,a person standing moti ...
Generation of power using Railway trackIRJET Journal
1. The document proposes harvesting energy from railway tracks when trains pass over them. Small vibrations and displacements in the track can be captured through an electromagnetic energy harvester.
2. The harvester uses a rack and pinion gear arrangement to convert the linear motion from track vibrations into rotational motion. This spins a flywheel that stores kinetic energy and powers a generator to produce regulated DC power.
3. Experimental results found the harvester was able to produce 2-4 volts of power from a 0.25 inch vibration in the track at 1 Hz. The flywheel helped reduce impact forces and provided continuous output to the generator.
This document presents a design for a portable micro hydro electrical generator. It consists of a permanent magnet synchronous generator with a rotor containing magnets and a stationary stator containing coils. Water turns a plastic turbine connected to a steel shaft, which rotates the rotor and cuts the magnetic field to induce current in the coils. The design aims to generate up to 5 watts of power and includes a turbine, shaft, generator, and waterproof container. Test results show that increasing water head from 1.7 to 2.1 meters increases voltage, current, and power output from 2.7 to 4.646 watts. The simple, low-cost design provides an environmentally friendly way to generate off-grid electricity from small streams
Similar to device generating elecricity by footstep using peizoelectic material (20)
device generating elecricity by footstep using peizoelectic material
1. 1
DEVICE GENERATING ELECRICITY BY FOOTSTEP USING
PEIZOELECRIC MATERIALS SYNOPSIS
Man has needed 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 sources have been
exhausted and wasted. So, non-conventional energy is very essential at the time to world. Walking
is the most common activity in day to day life. Method such as burning of coal, wood, diesel
(generators) etc. is continuously depleting our natural resources such as fossil fuels, which is the
demand for power has exceed the supply due to the rising population. [4]
Energy is the ability to do work. While energy surrounds us in all aspects of life, the ability to
harness it and use it for constructive ends as economically as possible is the challenge before
mankind. Alternative energy refers to energy sources, which are not based on the burning of fossil
fuels or the splitting of atoms. The renewed interest in this field of study comes from the
undesirable effects of pollution (as witnessed today) both from burning fossil fuels and from
nuclear waste by products. Fortunately there are many means of harnessing energy, which have
less damaging impacts on our environment.
The alternatives are,
1. Solar
2. Wind Power
3. Tides
4. Hydroelectric
In addition to these we have developed a new methodology of generating power using human
energy and the name of this alternative is a foot step power generation. [5] We are generating
electrical power as non-conventional method by simply walking or running on the foot step. Non-conventional
energy system is very essential at this time to our nation. Non-conventional energy
using foot step is converting mechanical energy into the electrical energy. [2]
The main aim of this project is to develop much cleaner cost effective way of power generation
method, which in turns helps to bring down the global warming as well as reduce the power
shortages. In this project the conversion of the force energy in to electrical energy by using
electromagnetic induction. In this project the force energy is converted into electrical energy.
2. 2
This project uses piezoelectric sensor. A.C. ripples neutralizer, unidirectional current controller
And 12v,1.3 Amp lead acid dc rechargeable battery and an inverter is used to drive AC/DC loads
“An average person weighing 60 kg , will generate only 0.1 watt in the single second required to
take two steps across the tile”, said Yoshiaki Takuya, a planner with sound power crop. “But when
they are converging a Large area of floor space and thousands of people are stepping or jumping
on tem , then we can generate significant amounts of power .” stored in capacitors ,the power can
be channeled to energy-hungry parts of the station ,he said, including the electrical lighting system
and ticket gates. [1]
The average human takes 3,000-5,000 steps a day. Seems like a lot, but most health experts would
tell you to average 10,000 a day. Each step produces only enough electricity to keep a LED-powered
street lamp lit for 30 seconds. So this is the very innovative thought in a commercial way
for reduce the cost of power used in daily life. The purpose of this analysis is to analyze various
methods of foot step power generation such as foot using foot step electricity converter device,
using pavagen slabs (recycled rubber), using liquid droplets and metal electrode embedded in shoe
sole, using piezoelectric material. [2]
Human-powered transport has been existence since time immemorial in the form of walking
running and swimming however modern technology has led to machines to enhance the use of
human power in more efficient manner. In this context, pedal power is an excellent source of
energy and has been in use since the nineteenth century making use of most powerful muscles of
body. Ninety five percent of exertion put into pedal power is used to generate electricity to power
small electronic appliances. [3]
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 were the roads railway
stations, bus stands, temples, etc. are all overcrowded and millions of people move around the
clock.
3. 3
LITERATURE REVIEW
2.1. Methodology of shoe power generators
The most common methodology of shoe power generators include
2.1.1. Foot step electric converter device (Mechanical method)
2.1.2. Footstep electricity generation using pavegen
2.1.3. Footwear embedded harvesters
2.1.4. Piezoelectric shoe
2.1.1. Foot step electric device-This device, if embedded in the footpath, can convert foot impact
energy into electrical form. The downward movement of the plate results in rotation of the shaft
of an electrical alternator fitted in the device, to produce electrical energy electricity generated
from these devices can be used for street lights. This is a mechanical arrangement so efficiency is
not so good and wear tear problem is there, the weight is less then 50kg then this device will not
work.[4]
2.1.2. Footstep electricity generation using pavegen- The recycled rubber "PaveGen" paving
slabs harvest kinetic energy from the impact of people stepping on them and instantly deliver tiny
bursts of electricity to nearby appliances. The slabs can also store energy for up to three days in an
on-board battery, according to its creator. Paving slabs that convert energy from people's footsteps
into electricity are set to help power Europe's largest urban mall, at the 2012 London Olympics
site. It’s limited due to cost of installation and complex structure.[4]
2.1.3. Footwear embedded harvesters- This works as follows: droplets of liquid are placed
between electrodes coated in dielectric film. Both droplets and electrodes are connected to an
external electrical circuit. External movement causes the interface between the droplets and the
electrodes to decrease which releases an electrical charge which flows back into the electrical
circuit, generating an electrical current. Limited due to maintenance cost is high and life time of
droplets.[4]
4. 4
2.1.4. Piezo electric shoe- The piezoelectric effect a material’s capacity to convert mechanica l
energy into electrical energy, and the inverse is observable in a wide array of crystalline substances
that have asymmetric unit cells. When an external force mechanically strains a piezoelectr ic
element, these polarized unit cells shift and align in a regular pattern in the crystal lattice. The
discrete dipole effects accumulate, developing an electrostatic potential between opposing faces
of the element. Relationships between the force applied and the subsequent response of a
piezoelectric element depend on three factors: the structure’s dimensions and geometry, the
material’s piezoelectric properties, and the mechanical or electrical excitation vector. The output
is not stable always and weight of the shoe is not normal.
Free play energy company (USA) as released a human electricity generator for commercial sale in
which power is generated by pushing up and down with foot on a step –action treadle.A similar,
newly released portable energy source is a foot –powered device that allows individuals to pump
out power at a 40-watt clip to charge its own internal battery, which is capable of providing a
powerful jolt to car batteries and AC and DC devices. [1]
2.2 Research elaborations
2.2.1.Study of piezo materials
Piezoelectric ceramics belong to the group of ferroelectric materials. Ferroelectric materials are
crystals which are polar without an electric field being applied. The piezoelectric effect is common
in piezo ceramics like PbTiO3, PbZrO3, PVDF and PZT. 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 two most commonly available piezoelectric material - PZT and PVDF, 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
5. 5
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.[5]
Fig 1: V-I graph of PVDF material
Fig 2: V-I graph of PZT
6. 6
The voltage from PZT is around 2 V where as that of PVDF is around 0.4V.We can thus conclude
that better output is obtained from the PZT than the PVDF.
2.2.2. Study of connections
Next to determine the kind of connection that gives appreciable voltage and current necessary,
three PZT are connected in series.
Fig .3: PZT in series connection
A force sensor and voltmeter is connected to this series combination. As varying forces are applied
on this connection, corresponding voltages are noted. Also the voltage generated across the series
connection and the current is measured. Similarly the connections are done for parallel and series-parallel
connections are done and the graphs are as in figures 3.
It can be seen from the graph that the voltage from a series connection is good but the current
obtained is poor, whereas the current from a parallel connection is good but the voltage is poor.
7. 7
But this problem is rectified in a series- parallel connection where a good voltage as well as current
can be obtained.[5]
Fig.4: V-I graph of parallel and series combination
2.2.3. Hardware implementation
In the hardware set up a tile made from piezo material is made. The voltage generated across a
piezo tile is supplied to a battery for it to recharge and supply the dc loads. Voltage generated is
also given to an inverter, from where it is supplied to all the ac loads. A LCD is interfaced to the
tile using a PIC microcontroller to display the voltage generated across the piezo tile.
2.2.4.Maximum theoretical voltage generated
When a force is applied on piezo material, a charge is generated across it. Thus, it can be assumed
to be an ideal capacitor. Thus, all equations governing capacitors can be applied to it. In this
project, on one tile, we connect 3 piezo in series.10 such series connections are connected in
parallel. Thus when 3 piezoelectric discs are connected in series, its equivalent capacitance
becomesHence, the net voltage generated in series connection is the sum of individual voltages
generated across each piezoelectric disc. Output voltage from 1 piezo disc is 13V.Thus the
maximum voltage that can be generated across the piezo tile is around 39V.
8. 8
2.2.5. Analysis done on the piezo tile
People whose weight varied from 40kg to 75 kg were made to walk on the piezo tile to test the
voltage generating capacity of the Piezo tile. The relation between the weight of the person and
power generated is plotted in figure 8. From the graph it can be seen that, maximum voltage is
generated when maximum weight/force is applied. Thus, maximum voltage of 40V is generated
across the tile when a weight of 75 Kg is applied on the tile.[5]
Fig 5: Weight V/s power graph of piezo tile
9. 9
PROPOSED WORK
There are Connections to make the model which we will done in future project work.
Unidirectional current
controller
Rechargeable
battery
A.C. ripple
neutralizer
D.C. load
LCD Display
Voltage sampler
Power Micro controller
Supply unit
ADC
Fig.6: Connections in the model
Piezoelectric
Material Sheet
Invertor
Load
The working of the model is as follows
1. The piezoelectric material converts the pressure applied to it into electrical energy.
2. The source of pressure can be either from the weight of the moving vehicles or from the weight
of the people walking over it.
3. The output of the piezoelectric material is not a steady one. So a bridge circuit is used to convert
this variable voltage into a linear one.
3. Again an AC ripple filter is used to filter out any further fluctuations in the output. The output
dc voltage is then stored in a rechargeable battery.
4. As the power output from a single piezo-film was extremely low, combination of few Piezo
films was in vestigated.
5.Two possible connections were tested - parallel and series connections. The parallel connection
did not show significant increase in the voltage output.
10. 10
6. With series connection, additional piezo-film results in increased of voltage output but not in
linear proportion. So here a combination of both parallel and series connection is employed for
producing 40V voltage output with high current density.
7. From battery provisions are provided to connect dc load. An inverter is connected to battery to
provide provision to connect AC load.
8. The voltage produced across the tile can be seen in a LCD. For this purpose microcontroller
PIC16F873A is used.
9. The microcontroller uses a crystal oscillator for its operation. The output of the microcontroller
is then given to the LCD which then displays the voltage levels.
Fig 7: Schematic representation of the working model
11. 11
REFERENCES
1. www.BEProjectreport.com
2.KiranBoby, Aleena Paul K, Anumol.C.V, Josnie Ann Thomas, Nimisha K., International Journal
of Engineering and Innovative Technology (IJEIT) Volume 3, Issue 10, April 2014
3. International Journal of Scientific and Research Publications, Volume 3, Issue 3, March 2013
4. www.ijesrt.com
5.Alla Chandra Sekhar, B MuraliKishore ,TJogiRaju, International Journal of Scientific and
Research Publications, Volume 4, Issue 6, June 2014