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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Microcontroller-Based Multi-Function Solar Tracking System-Electronics Projects

ABSTRACT

Renewable energy solutions are becoming increasingly popular. Photovoltaic (solar) systems are but one example. Maximizing power output from a solar system is desirable to increase efficiency. In order to maximize power output from solar panels, one needs to keep the panels aligne with the sun. As such, a means of tracking the sun is required. This is definitely a more cost effective solution than purchasing additional solar panels. It has been estimated that the yield from solar panels can be increased by 30 to 60 percent by utilizing a tracking system instead of a stationary array. In this electronics projects paper, a prototype for a microcontroller-based multi-function solar tracking system is described, which will keep the solar panels aligned with the sun in order to maximize efficiency. The maximum power point tracking (MPPT) data can be transmitted in real time to other solar systems in need of this data.

BLOCK DIGRAM

electronics projects
block diagram

 

 

 

 

 

 

 

 

 

 

 

 

 

Hardware Requirements

v  89C51 Microcontroller.

v  Power Supply.

v  LDR.

v  ADC unit.

v  ULN2003.

v  DC MOTOR.

v  SOLAR PANNEL

Software Requirements

v  Embedded C.

v  KEIL Compiler.

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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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PERFORMANCE OF POWER LINE COMMUNICATION SYSTEMS WITH NOISE REDUCTION SCHEME FOR SMART GRID APPLICATIONS-Electronics Projects

ABSTRACT

X10 protocol is meant for data communication over the power line which carries 230V, 50 Hz Ac supply. Here we are going to use the power line in the industry for data acquisition purpose. This is an improvement of data communication over the power line.

X10 is an international and open industry standard for communication among electronic devices used for home automation, also known as domotics. It primarily uses power line wiring for signaling and control, where the signals involve brief radio frequency bursts representing digital information.Whether using power line or radio communications, packets transmitted using the X10 control protocol consist of a four bit house code followed by one or more four bit unit code, finally followed by a four bit command.

In this paper, we propose clipping scheme and equalizer as methods to reduce the effects of impulsive noise and channel attenuation in power line communication (PLC)  system. Clipping is cutting off the amplitude of the received signal over threshold level without its phase change in order to reduce noise effects. The equalizer compensates for effects of PLC channel. The performance is evaluated in terms of bit error rate (BER). From simulation results, it is confirmed that the proposed clipping scheme has slightly better performance than conventional PLC system. The results of the paper can be applied to PLC systems for smart grid.

BLOCK DIAGRAM

electronics engineering projects
block diagram-electronics projects

WORKING PRINCIPLE

The device is a hardware interface that allows control data communication over the power line. Its purpose is that of translating the serial output provided by some digital service, like a microcontroller, into a coded pulse train that is suitable for being transmitted over the usual domestic power lines. Conversely, the interface is able to extract such messages from the power line and to convert them into serial streams that the connected digital device can read. The interface therefore acts like a modem, allowing the employment of the common electrical supply network of a building as a local area network.

When coupled with a programmable digital device, such as a microprocessor or a microcontroller, the device allows the realization of “intelligent” and “communicative” equipments that can interact with similar objects over a domestic network, without the need of installing a dedicating wiring. Typical applications are in the field of Home and Building Automation (management of surveillance and alarm systems, home appliances automation, AMR (Automatic Meter Reader), Home automation control, Security and surveillance, General-purpose isolated transceiver.

The innovative feature of these devices is that they transmit data on the power line, using the concept of conveyed wave (zero crossing).We use an 8051 based microcontroller the at89c51 for the transmitter and the receiver. From a keypad on the transmitter the relay section on the receiver can be controlled.

HARDWARE REQUIRED

  •  Microcontroller.
  • 565 Tone Generator
  • 555 Timer
  • ULN2003
  • LM386 Amplifier
  • Power Supply.
  • Microphone.
  • Relay.
  • UM91214 DTMF Encoder s
  • UMC 8870 DTMF Decoder
  • Isolation Transformer

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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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