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 Haptic technology
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 Haptic technology
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 Haptic technology
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 Haptic technology
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Haptic technology

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haptic technology

haptic technology

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  • 1. A SEMINAR REPORT ON “ HAPTIC TECHNOLOGY ” SUBMITTED IN PARTIAL FULFILLMENT FOR THE DEGREE OF BACHELOR OF TECHNOLOGY IN “INFORMATION TECHNOLOGY” BY “ANJALI A. SHAH” IT-3 UNDER THE GUIDANCE OF PROF.PRAKASH KHELAGE
  • 2. OUTLINE
    • What is haptic technology?
    • Working.
    • Architecture.
    • Characteristic.
    • Application.
    • Advantages.
  • 3. WHAT IS HAPTIC TECHNOLOGY?
    • Haptic technology , or haptics, is a tactile feedback technology that takes advantage of a user’s sense of touch by applying forces, vibration and motions to the user. 
    • It has been described as “(doing) for the sense of touch what computer graphics does for vision”.
  • 4. What haptic provides us?
    • Improved Usability
    • Enhanced Realism
    • Restoration of Mechanical Feel
  • 5. Haptic interaction loop with user and Virtual Environment
    • Human hand haptic virtual
    • device environment
  • 6. WORKING BASIC BLOCK DIAGRAM OF HAPTIC ENVIORMENT
  • 7.
    • The above diagram consist of :-
    • Simulation engine.
    • Visual, auditory, and haptic rendering algorithms
    • Transducers.
    • Rendering.
  • 8. HAPTIC ARCHITECTURE
    • .
  • 9.
    • The haptic rendering is divided into three main blocks :-
    • Collision-detection algorithm detects collision between objects and avatars in the virtual environment and yield information.
    • Force-response algorithms  computes the interaction between the virtual objects and avatars when a collision is detected.
    • Control algorithms   command the haptic device in such a way that minimizes the error between ideal and applicable forces.
  • 10. DESIGNING FACTORS
    • Criteria For Designing Haptic Control System.
    • Free space must feel free
    • Solid virtual objects must feel stiff
    • Virtual constraints must not be easily saturated.
  • 11. Haptic Device Control System
    • There are three control system to control haptic devices:-
    • Impedance control system -"displacement in -force out".
    • Admittance control system-"force in - displacement out".
    • Hybrid control system.
    • Adaptive control system.
    • Robust control system.
    • Optimal control system.
  • 12. Several Guidelines For Designing Haptic And Tactile Feedback For Directed Movements:-
    • Maintain stimulus-response compatibility.
    • In normal viewing conditions, extra-visual feedback may not improve targeting performance.
    • The effects of feedback in multiple-target environments are not well understood.
    • The effects of feedback in multiple-target environments are not well understood.
    • Buttons on tangible objects can interfere with positioning.
  • 13. CHARACTERISTICS
    • 1) Types Of Information Received
    • a) Tactile information- information acquired through
    • sensors in the skin .
    • b) Kinesthetic information-information acquired through
    • the sensors in the joints.
    • 2) Types Of Forces
    • a) Forces due to object geometry.
    • b) Forces due to object surface properties, such
    • as texture and friction.
  • 14. 3) Types of Haptic devices: a) Devices that allow users to touch and manipulate 3-dimentional virtual object. b) Devices that allow users to "feel" texture of 2-dimension objects.
  • 15. HAPTIC DEVICE
    • To aid computer users who are blind or visually disabled or are tactile leaners.
    • It provides resistance to texture in computer images.
    • It provides single point,3D force-feedback to the user via stylus attached to a moveable arm
    1) 2)
  • 16. 3) 4)
    • Cyber glove can sense th position and movement of fingers and wrist.
    • It can be used to manipulate virtual objects.
    • It is worn over Cyber Glove.
    • Exerts palpable forces on the real hand, creating illusion of touching.
  • 17. APPLICATION
    • FOR THE VISUALLY IMPAIRED
    • GAMING APPLICATION
    • AUTOMOTIVE
    • VIRTUAL EDUCATION
  • 18. ADVANTAGE :-
    • Digital world can behave like the real world.
    • Working time is reduced.
    • Medical field simulators allow would be surgeons to practice digitally.
  • 19. DISADVANTAGES
    • The precision of touch requires a lot of advance design. 
    • Haptics applications require highly specialized.
    • hardware and considerable processing power and hence its complex.
    • Haptics projects rely on fixed installations of equipment and are not easily portable.
    • Debugging issues.
  • 20. THANK YOU

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