ADVANCED COMMUNICATION REDTACTON

8/7/2019 ADVANCED COMMUNICATION REDTACTON

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ADVANCED

COMMUNICATION

RED TACTON

(AN INNOVATIVE HUMAN AREA NETWORKING)

ABSTRACT:

Human society is entering an era of ubiquitous computing, when networks

are seamlessly interconnected and information is always accessible at our

fingertips. The practical implementation of ubiquitous services requires three

levels of connectivity: Wide Area Networks (WAN), typically via the Internet, to





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remotely connect all types of severs and terminals; Local Area Networks (LAN),

typically via Ethernet or WiFi connectivity among all the information and

communication appliances in offices and homes; and Human Area Networks

(HAN) for connectivity to personal information, media and communicationappliances within the much smaller sphere of ordinary daily activities-- the last one

meter. NTT's RedTacton is a break-through technology that, for the first time,

enables reliable high-speed HAN.

In the past, Bluetooth, infrared communications (IrDA), radio frequency ID

systems (RFID), and other technologies have been proposed to solve the "last

meter" connectivity problem. However, they each have various fundamental

technical limitations that constrain their usage, such as the precipitous fall-off in

transmission speed in multi-user environments producing network congestion.

RedTacton uses the minute electric field emitted on the surface of the human

body. Technically , it is completely distinct from wireless and infrared. A

transmission path is formed at the moment a part of the human body comes in

contact with a RedTacton transceiver. Physically separating ends the contact and

thus end communication.

Using RedTacton communication starts when terminals carried by the user

or embedded in devices are linked in various combinations according to the users

natural, physical movements. Communication is possible using anybody surfaces,such as the hands, fingers, arms, feet, face, legs or torso.

INTRODUCTION:





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Japanese company Nippon Telegraph and Telephone Corporation (NTT)

claims to have developed the first viable Human Area Networking (HAN) device,

enabling fast data transfer between devices using the human body as a conduit.

NTT reckons this latest advance on the wireless Personal Area Network

concept - dubbed RedTacton - can transmit data over the surface of the skin at up

to 2Mbps. Where it differs, though, from previous offerings, is that a RedTacton-

enabled device does not have to be in direct contact with the skin - only within

about 20cm.

Instead of relying on electromagnetic waves or light waves to carry data,

RedTacton uses weak electric fields on the surface of the body as a transmission

medium. A RedTacton transmitter couples with extremely weak electric fields on

the surface of the body. The weak electric fields pass through the body to a

RedTacton receiver, where the weak electric fields affects the optical properties of

an electro-optic crystal. The extent to which the optical properties are changed is

detected by laser light which is then converted to an electrical signal by a detector

circuit.

RedTacton can also transmit through clothing or shoes, allowing the

useful possibility of downloading MP3s through a floor-based sensor.

WORKING PRINCIPLE:

The word, "Tacton" means communication starts by touching (Touch),

leading to various actions (Act on). The color red is to convey the meaning of

warmth in communication. Combining these phrases led to the name,

"RedTacton".

WORKING WITH REDTACTON:





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Using a new super-sensitive photonic electric field sensor, RedTacton can

achieve duplex communication over the human body at a maximum speed of 10

Mbps.

The RedTacton transmitter induces a weak electric field on the surface of the

body. The RedTacton receiver senses changes in the weak electric field on the

surface of the body caused by the transmitter. RedTacton relies upon the principle

that the optical properties of electro-optical crystal can vary according to changes

of a weak electric field.Redtacton detects changes in the optical properties of an

electro-optic crystal using a laser and converts the result to an electric signal in an

optical receiver circuit.





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It is to be noted that Redaction transceivers which integrate transmitter and

receivers, are also available. The physical layer enables half-duplex

communication (transmission and reception are done alternatively) using

proprietary CSMA/CD protocol. As with Ethernet cards, each transceiver card has

a unique address. The upper layer above this is compliant with TCP/IP protocol.

METHOD OF COMMUNICATION WITH REDTACTON:

The transmitter sends data by inducing fluctuations in the minute electric

field on the surface of the human body. The surface of the human body loses some

field due to the returning to ground and electric field dissipated to the earth from

legs. Data is received using a photonic electric field sensor that combines an

electro-optic crystal and a laser light to detect fluctuations in the minute electric

field. This sensor measures faint electric field by using a laser beam to detect

fluctuations in the optical properties of electro-optic crystal that are caused by

peripheral electric fields.





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The illustration is as shown in the figure. It clearly depicts various paths of the

field.

The crackling sensation one feels when shocked by static electricity is

caused by an electric current of several dozen milli-amperes suddenly flowing into

the body from the outside. The RedTacton electrode is covered with an insulating





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material, no current flows into the body from the RedTacton transceiver. As a

result, there is no shock caused by the inflow of electric current from the outside.

However, as in mobile phones, a weak induction current is created in the body

owing to the minute electric filed created near the body when the movement

occurs. This induction current is very weak and similar to those occurring in

everyday life. The size of the induction current emitted on the body with

RedTacton is in conformity with the "Radio Frequency-Exposure Protection

Standard established by the Association of Radio Industries and

Businesses (ARIB).

COMMUNICATION WITH ARMS:

According to NTT Laboratories, the whole body is the perfect conductor for

electronic data, meaning that information such as music and films could be

downloaded in seconds via your elbow.





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NTT, and the team of scientists that invented the "Red Tacton" system, envisage a

future in which the human body acts as a non-stop conduit for information.

DOWNLOADING FILES VIA FLESH:

RedTacton uses the human body as a path for the electric signals that are

communicated to represent data. The transmitter worn on a body uses the bodys

electrical field to transmit digital messages. For example, by shaking hands two

people can exchange business cards. When a user touches a door handle, the

system realizes who the person is and gives the authorization. By holding a camera

in one hand and touching the printer with the other the photographs can be printed.

By touching a mobile phone, the address book can be downloaded. However, a

distinction between an electric sensor and a photonic electric field sensor is also

illustrated. Photonic electric field sensors used in RedTacton can measure stand-

alone contacts without being influenced by grounds. As a result, the received

waveform is not distorted, regardless of the receiver location. This makes long-

distance and high-speed body surface transmission possible.

THREE FEATURES:

RedTacton has three main functional features. They are Touch, Broadband

& Interactive, Any-media.





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1. TOUCH

Touching, gripping, sitting, walking, stepping and other human movements can be th

triggers for unlocking or locking, starting or stopping equipment, or obtaining data. UsinRedTacton, communication starts when terminals carried by the user or embedded

devices are linked in various combinations through physical contact according to th

human natural movement.

2 . BROADBAND & INTERACTIVITY

Duplex, interactive communication is possible at a maximum speed of 10Mbps.

Because the transmission path is on the surface of the body, transmission speed

does not deteriorate in congested areas where many people are communicating at

the same time.





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3. ANY MEDIA

In addition to the human body, various conductors and dielectrics can be used

as transmission media. Conductors and dielectrics may also be used incombination. A communication environment can be created easily and at low-cost

by using items nearby, such as desks, walls, and metal objects.

SYSTEM SAFETY :

1. No current flowing into the human body from Red Tacton devices.

RedTacton uses the electric field that occurs naturally on the surface of thehuman body for communication. Transmitter and receiver electrodes are covered

with insulating films. No current flows into the body from the RedTacton

transceiver.

2. Displacement current occurring in the body is small enough.

There is no current flowing from the RedTacton transceiver; however, the

body indirectly receives a minute electric field. This causes electrons already

present inside the body to move, creating a minute displacement current. Thisdisplacement current is similar to those occurring in everyday life.

3. RedTacton conforms to the safety guideline of induced current.

RedTacton is in conformity to the "Radiofrequency-exposure Protection RC

standard (RCR STD-38)" issued by the Association of Radio Industries and Businesse

(ARIB).

COMPARISION WITH OTHER TECHNOLOGIES :

The chart below shows the positioning of RedTacton with respect to existing

communication technologies. The focus on ubiquitous service has brought about

the shortening of distances in communication. RedTacton is positioned as the last

1m solution to ultimate close-range communication. Wireless communication





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creates connections when signals arrive, allowing for easy connections because

connectors are unnecessary. However, seen from another aspect, the arriving

signals can be intercepted, so security becomes an issue. Wired communication

transmits data between two connection points, so interception is difficult andsecurity can be considered to be high. However, connectors and cables are a

nuisance. Taking the above points in account, RedTacton is situated directly

between wireless and wired communication. In other words, RedTacton allows for

easy connection without connectors, while at the same time allowing transmission

of data only between two contact points. It thus has the feature of being difficult to

intercept.

APPLICATIONS:

INSTANTANEOUS PRIVATE NETWORK VIA HANDSHAKING :





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By shaking hands, personal profile

data can be exchanged betweenmobile terminals on the users

(Electronic exchange of business

cards).

Communication can be kept private

using authentication and encryption

technologies.

PERSONALIZATION OF AUTOMOBILES :

The seat position and steering wheel

height adjust to match the driver just

by sitting in the car

The drivers home is set as the desti-

nation in the car navigation system.

The stereo plays the drivers favourite

song.





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CONFERENCING SYSTEM :

An electrically conductive sheet is

embedded in the table.

A network connection is initiated simply

by placing a lap-top on the table.

Using different sheet patterns enables

segmentation of the table into subnets.

WIRELESS HEADSET :

RedTacton can carry music or video

between headsets, mobile devices,

mobile phones etc.





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Users can listen to music from a Red-

Tacton player simply by putting on a

headset or holding a viewer.

MEDICAL APPLICATION :

In human body, it is used to detect ailments

such as abnormal growths, tumors, and

excrescences affected tissues and thus

helps in allowing providing a cure.

COMMUNICATION IN SPACE AND WATER :

RedTacton allows communication in outer

space and in water where the speech con-straints are very high and thus enables a

highly efficient means of expression of

speech which is beyond the purvey of

human beings.





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FUTURE DEVELOPMENTS :

RedTacton has a wide range of unique new functional features and

enormous potential as a Human Area Networking technology. NTT is committed

to quickly identifying and opening up those application areas with the the most

commercial promise for RedTacton, a business development process to be

coordinated under NTT's Comprehensive Producer Function program.

CONCLUSION :

Human society is entering an era of ubiquitous computing,where

everything is networked. By making Human Area Networks feasible, RedTacton

will enable ubiquitous services based on human-centered interactions and therefore

more intimate and easier for people to use.

In the days to come where man is destined to scale new heights of

technology ,a technology like RedTacton is likely to propel him in the right

direction giving him hope and motivation than any other technology man is able to

perceives on the human centered interaction.

REFERENCES:

WWW.PHYSORG.COM



http://www.physorg.com/http://www.physorg.com/http://www.physorg.com/


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WWW.REDTACTON.COM

WWW.NTT.CO.JP

WWW.PHYSICFORUM.COM

WWW.OPPAPERS.COM



http://www.redtacton.com/http://www.redtacton.com/http://www.ntt.co.jp/http://www.ntt.co.jp/http://www.physicforum.com/http://www.physicforum.com/http://www.oppapers.com/http://www.oppapers.com/http://www.redtacton.com/http://www.ntt.co.jp/http://www.physicforum.com/http://www.oppapers.com/

ADVANCED COMMUNICATION REDTACTON

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