2. INTRODUCTION
THE TONGUE DRIVE SYSTEM IS A NEW
INDUCTIVE TONGUE-COMPUTER INTERFACE
TECHNOLOGY.
SPECIALLY DESIGNED FOR PEOPLE, PEOPLE
WHO GOT SPINAL CORD INJURIES
TONGUE DRIVE SYSEM IS MAINLY
DESIGNED TO CONTROL ENVIROMENT
3. WHY WE USE TONGUE
THE TONGUE TO CONTROL THE SYSTEM
BECAUSE UNLIKE THE FEET AND THE HANDS,
WHICH ARE CONNECTED BY BRAIN THROUGH
SPINALCORD.
THE TONGUE AND THE BRAIN HAS A
DIRECT CONNECTION THROUGH CRANIAL NERVE.
TONGUE MOVEMENTS ARE ALSO FAST,
ACCURATE AND DO NOT REQUIRE MUCH
THINKING, CONCENTRATION OR EFFORT
4. DESIGN OF TONGUE DRIVE
EARLIER VERSION
A TINY MAGNET, ONLY A SIZE OF A GRAIN OR
RICE, IS ATTACHED TO AN INDIVIDUAL'S
TONGUE USING ADHESIVE
THE MAGNET ATTACHED TO THE TONGUE ARE
SPOTTED BY A NUMBER OF MAGNETIC FIELD
SENSORS INSTALLED ON A HEADSET WORN
OUTSIDE
5. WORKING PRINCIPLE
EARLIER VERSION
MOVEMENT OF THE MAGNETIC
TRACER ATTACHED TO THE TONGUE IS DETECTED
BY AN ARRAY OF MAGNETIC FIELD SENSORS.
THE SENSOR OUTPUT SIGNALS ARE
WIRELESSLY TRANSMITTED TO
A PORTABLECOMPUTER, WHICH CAN BE CARRIED
ON THE USER'S CLOTHING OR WHEELCHAIR.
ACCORDING TO TOUNG MOMENT CONDITION
IS TAKE AN LEFT, RIGHT, TO MOVE
THE WHEELCHAIR
7. DESiGN OF TONGUE DRIVE
NEW VERSION
THE MOUTH DEVICE CONTAINS MAGNETIC
FIELD SENSORS MOUNTED ON ITS FOUR
CORNERS TO DETECT THE MOMENT OF THE
TINY MAGNET ATTACHED TO THE TONGUE.
MOUTH DEVICE
8. DESIGN OF TONGUE DRIVE
NEW VERSION
IT IS POWERED BY A LITHIUM-ION BATTERY
AND HAS AN INDUCTION COIL TO RECHARGE IT
AND IS PROTECTED WITH A WATER-
RESISTANT MATERIAL.
9. WORKING PRINCIPLE
NEW VERSION
MOVEMENT OF THE MAGNETIC TRACER
ATTACHED TO THE TONGUE IS DETECTECD BY
SENSORS.
THE OUTPUT SIGNALS FROM THE SENSORS ARE
WIRELESSLY TRANSMITTED TO AN IPOD TOUCH
OR IPHONE . SOFTWARE INSTALLED ON THE APPLE
DEVICE WORKS OUT THE RELATIVE POSITION OF
THE MAGNET WITH RESPECT TO THE ARRAY OF
SENSORS IN REAL TIME AND INTERPRETS THE
USER'S COMMANDS.
WIRELESS SIGNALS FROM THE DEVICE
COMMUNICATE WITH A WHEELCHAIR-DOCKED
IPHONE OR IPOD WITH SOFTWARE INSTALLED
THAT INTERPRETS TONGUE COMMANDS. THE
MOVEMENTS CONVEYED ARE THEN USED TO
CONTROL THE POWER WHEELCHAIR.
11. WORKING PRINCIPLE
THIS INFORMATION IS THEN USED TO
CONTROL THE MOVEMENTS OF A CURSOR ON THE
COMPUTER SCREEN OR TO SUBSTITUTE FOR THE
JOYSTICK FUNCTION IN A POWERED
WHEELCHAIR.
12. ADVANTAGE
A RESPONSE TIME OF LESS THAN
ONE SECOND
WE CAN CONTROL ENVIROMENTAL DEVICE
EMPLOY ABILITY
DISADVANTAGE
SLIGHTLY COSTLIER.
IMPLEMENTATION IS SLIGHTLY HARDER
13. Future of TCS :-
TO CONTROL A ROBOTIC
ARM TO USE IT TO EAT,
DRINK, HOLD ANY THING AND
USE IT AS A NATURAL ARM.
TO DRIVE CARS
