16-07-2012, 03:56 PM
Red Tacton
redtacton.ppt (Size: 2.19 MB / Downloads: 102)
Introduction
RED TACTON meaning:
tacton: touch-act-on (action triggered by touching)
red: symbol of warmth and love conveying the cordiality of interpersonal communications
Red Tacton works on HAN. (Human area networking)
Communication between electronic wearable devices on human body and outside environment critical-so human area networking essential
Red Tacton uses the surface of the human body as a safe, high speed network transmission path.
Red Tacton uses the minute electric field emitted on the surface of the human body for the data transfer.
Technically its completely distinct to wireless and infrared.
Communication possible through any part of the body.
Working of Red Tacton
Red Tacton works upon the principle that the optical properties of an electro-optic crystal can vary according to the changes of a weak electric field.
10 mbps transmission speed is achieved between any 2 points on the transmission path in the body.
Major components of device are a red tacton transmitter and a receiver( electro-optic crystal and laser)
Need of Supersensitive Sensors
The naturally occurring electric field induced on the surface of the human body dissipates into the earth. Therefore, this electric field is exceptionally faint and unstable.
Photonic electric field sensors are developed.
It is a sensor that bounces a laser beam off of a crystal (electro-optic crystal) and measures the reflected beam. Oscillations in the electric field surrounding the crystal affect the crystal, which changes the reflected light's polarization.
Touch
Many human movements like touching, gripping, walking, stepping etc. can lock or unlock equipments or start or stop an equipment or can result in data transfer
Communication starts when any body part or embedded system gets in contact through various physical contacts according to human natural movements .
Human Safety
Safety is obviously the primary concern before the implementation of this technique.
The transmitting and receiving electrodes of the Red Tacton transceiver are completely covered with insulating film.
So the body of the person acting as the transmission medium is completely insulated.
When communication occurs, displacement current is generated by the electrons in the body because the body is subjected to minute electrical fields.