Wireless Power Transmission for Mobile and Wheel Chair

Report
WIRELESS POWER TRANSMISSION
FOR MOBILE AND WHEELCHAIR
CHARGING OF PHYSICALLY
CHALLENGED PEOPLE
PROJECT BY : REBECCA ROY
AIM
 The scope of the project is to transfer power wirelessly using
inductive coupling method to charge the mobile phone and
wheel chair battery.
 We also use the application to run the wheelchair based on the
instruction given wirelessly through mobile.
ABSTRACT

Wireless Power Transfer Technology is an emerging trend in the
world today. This technology eliminates the drawbacks of existing
wired technology.
 In this project, wireless power transfer is used in
charging a wheel
chair and the mobile phone of the disabled persons at home.
 The working principle behind wireless power transmission
is electromagnetic induction.
 Energy transfer by electromagnetic induction is
magnetic.
typically
INDUCTIVE COUPLING
 whenever we direct an electrical current through a wire there is a natural
phenomena that occurs, that a circular magnetic field is created around the
wire. And if we loop/coil that wire that wire's magnetic field gets stronger. If
we take a second coil of wire that does not have an electrical current passing
through it, and place that coil within the magnetic field of the first coil, the
electric current from the first coil will travel through the magnetic field and
started running through the second coil, that's inductive coupling.
EXISTING SYSTEM
 The power in form of electricity, which we get from power stations is costly.
 There is a huge loss of energy in form of heat due to resistance of wire, which
reduces the efficiency. At most of our appliances are connected to wires or
cords, for charging purpose.
 The wires take up too much space, they get dirty, reduce the range of the
machines, and they are costly .
 In the existing system, wheelchair is controlled manually and hence the person
needs somebody to help them in moving from one place to another.
PROPOSED SYSTEM
 Electromagnetic induction is the production of an electric current across a
conductor moving through a magnetic field.
 In the proposed system, wireless power transmission technology is implemented to
charge both the wheelchair as well as mobile phone of the disabled persons.
 The technology requires two coils: a transmitter and a receiver. An alternating
current is passed through the transmitter coil, generating a magnetic field. This in
turn induces a voltage in the receiver coil; this can be used to power a mobile
device or charge a battery."
 In this we can control the wheelchair through our mobile using android Bluetooth
application
 Charging the battery of the vehicle through wireless power transmission technology
is one of the major advantage of this system .
BLOCK DIAGRAM
Main Power
Supply
High Frequency
Step Down
Transformer
Bridge Rectifier
Wireless Power
Transmitter
Circuit
Transmitter Coil
WHEELCHAIR MODULE
Receiver Coil
Voltage Regulator
LM7805
Rechargeable
Battery
High Voltage
(12V DC)
For Motors
Bluetooth
Module
PIC16F877A
Micro
Controller
Relay Driver
Circuit
Motor
Assembly
MOBILE MODULE
Receiver Coil
Voltage
Regulator
LM7805
Mobile
CIRCUIT DIAGRAM
HARDWARE USED
 PIC16F877A Microcontroller







Wireless power transmitter
Wireless power receiver
Rechargeable battery
Relay
Motor and motor driver
Bluetooth module
User mobile
SOFTWARE USED
 MPLAB IDE





Hi-Tech C Compiler
PICKIT2 Programmer
Embedded C Language
Proteus Circuit Designer
Android Application
WIRELESS POWER TRANSMITTER
Fig shows the wireless power transmitter to transmit the
power wirelessly.
RECEIVER MODULE
Fig shows the receiver module which is used to receive
the power wirelessly.
CHARGING OF MOBILE
Fig shows the charging of mobile wirelessly.
WHEEL CHAIR MODULE
Fig shows the wheel chair module
CONCLUSION
• In this project, it is clear that resonant inductive coupling
power transmission would be extremely beneficial to society if
it is implemented in homes and home electronics.
• To start with we should begin replacing household outlets with
a wireless power transmitter in each new house and have
battery shaped coils to fit into home electronics.
FUTURE SCOPE
• The disadvantages of wireless power are greatly outweighed by the benefits
and from an ethical standpoint, thus it is necessary to further develop
wireless power technology to the point of large-scale production.
•
We have the means and design; it is now a matter of obligation to create
wireless power on mass scales for the betterment of society.
•
The future work of this project is to increase the distance between the
transmitter coil and the receiver coil. Also increase the amount of power to
transfer.
REFERENCES
• P. Gupta and P. R. Kumar, “The capacity of wireless
networks,” IEEE Transaction
• L. Xie, Y. Shi, Y. T. Hou, and H. D. Sherali, “Making sensor
networks immoral: an energy-renewal approach with wireless
power transfer,”” IEEE/ACM Transaction
• On renewable sensor networks with wireless energy transfer:
the multi-node case,” in Proc. 2012 IEEE Communication

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