Haptic System Presentation,Teena

8/2/2019 Haptic System Presentation,Teena

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GUIDED BY :- PRESENTED BY:-

Mr. Vikas Sharma Teena Sharma


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OUTLINE

INTRODUCTION

WORKING

HAPTIC RENDERING

CLASSIFICATION

HAPTIC DEVICES

APPLICATIONS IN VARIOUS FIELDS

LIMITATIONS

CONCLUSION

REFERENCES


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INTRODUCTION

Haptics is derived from the Greek word haptikoswhich means-being able to come into contact

(THE SCIENCE OF TOUCH)


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WHAT IS HAPTICS ?

HAPTICS-The technology that interfaces human interaction withexternal environment via touch.

The haptic system can SENSE and ACT on the environment whilevision and audition have purely sensory nature.

Understanding and enabling a compelling experience of Presencenot limited to "being there", but extended to "being in touch" withremote or virtual surrounding.

hap.tic (haptik) adj. of or having to do with the sense of touch;tactile (Websters New World Dictionary)


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The Technology


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TACTILE FEEDBACK

Refers to the sensations felt by the skin.

It allows the user to feel things such as the texture of

surfaces, temperature and vibration.


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FORCE FEEDBACK

It reproduces the directional forces that can result fromsolid boundaries.

E.g. the weight of virtual objects, inertia, etc.


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WORKING OF HAPTICS


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HAPTIC RENDERING

1) It is the technique to compute the interactionforces b/w the haptic interface and virtual

object.

2) Ensure that the haptic device correctly renders

such forces on the human operator.


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CLASSIFICATION

HAPTICSYSTEM

VIRTUALREALITY

/TELEROBOTICS

Exoskeletaldevices

Gloves andwearable

devices

Pointsources

HAPTICFEEDBACK

Forcefeedbackdevices


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VIRTUAL REALITY

Virtual reality is a form of human-computer interaction providing avirtual environment that one can explore through direct interaction withour senses.

On a computer, virtual reality is primarily experienced through two of thefive senses: sight and sound.

Virtual reality can be divided into:1)The simulation of a real environment for training and education.2)The development of an imagined environment for a game or interactivestory.


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IMPORTANCE OF VIRTUAL REALITY

Creation of anartifi- cial

environment

3-D Effect

Increasedrealism


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HAPTIC FEEDBACKBASIC BLOCK DIAGRAM

MAIN ELEMENTS1) Simulation Engine2) Haptic Rendering Algorithms3) Transducers


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HAPTIC DEVICES

It allows users to touch, feel and manipulate

3-D objects in virtual environments


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HOW ARE HAPTIC DEVICES DIFFERENT?

Common interface devices like mouse and joystick areonly input devices. No feedback.

Haptic devices are input-output devices.


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SOME POPULARLY USED HAPTIC INTERFACING

DEVICES..

Exoskeletons devices

Cyberglove Phantom.


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EXOSKELETONS DEVICE

These devices have hard outer shell that exists onmany creatures and they covers the users.

their large size and immobile nature allow for the

generation of large and varied force information.


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CYBERGLOVE

Devoloped byImmersioncorp.

1)It has 4 DOF for eachfinger.2)It adapted differentsize of fingers.3)In the absence of realobject,human is capableto feel that object withwearing Cyberglove.


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PHANTOM

1)Devoloped by Sensable Tech.

2) 6 DOF device.

3) Pen based interaction.

4) Serial linkage.

5) Force feedback.

6) The break-through performance

in the field of haptics.


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APPLICATIONS

Virtual reality

Tele-presence

Games & many more

Surgical simulation &Medical Training

Military applications.


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1.VIRTUAL REALITY


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2.TELE-PRESENCE


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3.GAMES


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4.SURGICAL SIMULATION & MEDICAL

TRAINING


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5.MILITARY TRAINING


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LIMITATIONS OF HAPTICS

Can only exert forces with limited magnitude.

Haptic systems arent ideal force transducers due toexistence of friction, inertia, backlash etc.

Haptic rendering algorithms operates in discrete timewhile users in continuous time.

The position sensors have finite resolutions.


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CONCLUSION

Future for online computing and e-commerce.

Enhance the shopper experience and help onlineshopper to feel the merchandise without leave theirhome.

Because of the increasing applications of haptics, thecost of the haptic devices will drop in future.


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REFERENCES

http://www.technologyreview.com

http://www.sensable.com

jks-folks.stanford.edu/papers/Haptic-Rendering.pdf

http://www.informit.com

http://www.wikipedia.com

http://www.google.com
http://www.informit.com/http://www.wikipedia.com/http://www.google.com/http://www.google.com/http://www.wikipedia.com/http://www.informit.com/


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THANK YOU

Haptic System Presentation,Teena

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