Electronics Projects -ENERGY HARVESTING FROM PIEZOELECTRIC MATERIALS FULLY INTEGRATED IN FOOTWEAR

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ABSTRACT

This Electronics project describes the use of piezoelectric polymers in order to harvest energy from people walking and the fabrication of a shoe capable of generating and accumulating the energy. As low power and wearable electronic devices are more and more present in our everyday life, there is a growing need for the delivery of power to different points of the human body. An interesting application is a posture monitoring system of the human body presented by Silva. The posture monitoring system is composed of five sensing modules, i.e., two located on upper members, two on lower members, and one on the spine.

The detection algorithm uses the gravitational force to detect inclination and the earth magnetic field to measure the rotation of the body about the axis perpendicular to the gravity field. The total energy consumption of the suit is near 20 J per operating hour. The delivery of power to different points of the human body can be performed by batteries and wires, which incentivizes the development of more efficient, light, and long-lasting batteries. It can also stimulate the research in the field of energy generation, in order to produce energy close to the point in which it will be used. In this case, energy storage might not be necessary at all. As power requirements of most modern electronic portable devices are decreasing, it becomes possible to use the energy harvesting from human body activity, in order to power these devices.

Block Diagram

Electronics engineering mini projects
Block diagram- Electronics Projects

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JJ

This is Mr.Jose John, 21 yrs old guy, currently pursuing final year mechanical engineering, now become an enthusiastic blogger and a successful entrepreneur.
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Robotics based IEEE Electronics Projects- Mechatronics Projects

Robotics based IEEE Electronics Projects

R O B O T I C S Projects- Mechatronics Projects

1 Automatic Voice Announcement Based Robot Fire Analysis System- robotics projects
2 Obstacle Detection and Avoidance Robot- robotics projects
3 A Modular Cost- Effective Mobile Robot Navigation System- robotics projects
4 Survive Human Detecting Robot for Industrial Essential Ares- robotics projects
5 Crack Sensing Robot- robotics projects
6 Walking Robot With Forward and reverse Movement- robotics projects
7 Adaptive Geometry Track Design and Implementation for an all Terrain Mobile Robot- robotics projects
8 Involutary Voice Prononcement based Robot Fire PsychoAnalysis System- robotics projects
9 Automatic Rescue Robot for Earthquake Areas- robotics projects
10 ZigBee Surveillance Vehicle with Robotic Arm and Integrated Wireless Camera- robotics projects
11 Human Sense Robot for Rescue Operations using ZigBee, Wireless Video and MEMS Joystick- robotics projects

 

JJ

This is Mr.Jose John, 21 yrs old guy, currently pursuing final year mechanical engineering, now become an enthusiastic blogger and a successful entrepreneur.
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Automatic Railway Gate Control and Track Switching

ABSTRACT

Present project is designed using 8051 microcontroller to avoid railway accidents happening at unattended railway gates, if implemented in spirit. This project utilizes two powerful IR transmitters and two receivers; one pair of transmitter and receiver is fixed at up side (from where the train comes) at a level higher than a human being in exact alignment and similarly the other pair is fixed at down side of the train direction. Sensor activation time is so adjusted by calculating the time taken at a certain speed to cross at least one compartment of standard minimum size of the Indian railway. We have considered 5 seconds for this project. Sensors are fixed at 1km on both sides of the gate. We call the sensor along the train direction as ‘foreside sensor’ and the other as ‘aft side sensor’. When foreside receiver gets activated, the gate motor is turned on in one direction and the gate is closed and stays closed until the train crosses the gate and reaches aft side sensors. When aft side receiver gets activated motor turns in opposite direction and gate opens and motor stops. Buzzer will immediately sound at the fore side receiver activation and gate will close after 5 seconds, so giving time to drivers to clear gate area in order to avoid trapping between the gates and stop sound after the train has crossed.

The same principle is applied for track switching. Considering a situation wherein an express train and a local train are traveling in opposite directions on the same track; the express train is allowed to travel on the same track and the local train has to switch on to the other track. Two sensors are placed at the either sides of the junction where the track switches. If there’s a train approaching from the other side, then another sensor placed along that direction gets activated and will send an interrupt to the controller. The interrupt service routine switches the track.  Indicator lights have been provided to avoid collisions. Here the switching operation is performed using a stepper motor. Assuming that within a certain delay, the train has passed the track is switched back to its original position, allowing the first train to pass without any interruption. This concept of track switching can be applied at 1km distance from the stations.

Demo of the system

Gate Control:

Railways being the cheapest mode of transportation are preferred over all the other means .When we go through the daily newspapers we come across many railway accidents occurring at unmanned railway crossings. This is mainly due to the carelessness in manual operations or lack of workers. We, in this project has come up with a solution for the same. Using simple electronic components we have tried to automate the control of railway gates. As a train approaches the railway crossing from either side, the sensors placed at a certain distance from the gate detects the approaching train and accordingly controls the operation of the gate. Also an indicator light has been provided to alert the motorists about the approaching train.

Gate Control

Track Switching

Using the same principle as that for gate control, we have developed a concept of automatic track switching. Considering a situation wherein an express train and a local train are travelling in opposite directions on the same track; the express train is allowed to travel on the same track and the local train has to switch on to the other track. Indicator lights have been provided to avoid collisions .Here the switching operation is performed using a stepper motor. In practical purposes this can be achieved using electromagnets.

Track switching

Hardware Description

The project consists of four main parts:

  1. 8051 microcontroller
  2. IR Transmitter
  3. IR Receiver
  4. Stepper Motor Circuit

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JJ

This is Mr.Jose John, 21 yrs old guy, currently pursuing final year mechanical engineering, now become an enthusiastic blogger and a successful entrepreneur.
Connect with him on:

Facebook Twitter LinkedIn Google+ 

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