Haptic technology

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Haptic Technology is about sensation and control to interact with computer applications.

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Haptic technology

  1. 1. Prepared by: Jignesh Khunt Roll No : 25 MCA – IV Department of Computer Science
  2. 2.  ‘Haptics’ is derived from the Greek word ‘haptikos’ which means – ‘being able to come into contact’.  Haptics is the science of applying touch (tactile) sensation and control to interact with computer applications.  bidirectional communication between humans and computers to include sensory feedback.  Haptics = Touch = Connection
  3. 3.  Virtual reality is a form of human-computer interaction providing a virtual environment that one can explore through direct interaction with our senses.
  4. 4.  User should be able to touch the virtual object and feel a response from it.  In order to complete the imitation of the real world one should be able to interact with the environment and get a feedback.  This feedback is called Haptic Feedback.
  5. 5.  Haptics is implemented through different type of interactions with a haptic device communicating with the computer. These interactions can be categorized into the different types of touch sensations a user can receive: 1)Tactile Feedback 2)Force Feedback
  6. 6.  Refers to the sensations felt by the skin.  It allows the user to feel things such as the texture of surfaces, temperature and vibration.
  7. 7.  It reproduces the directional forces that can result from solid boundaries.  E.g. the weight of virtual objects, inertia, etc.
  8. 8. 4 3 2 4 3 2 1 1 End effector Hand Actuators Muscles Sensors Tactile  & kinestheti c Info: Motor Commands M otion Contact Forces Virtual object Position  information MachineHuman  Motion  For ces Torque  Commands Computer haptics Sensors
  9. 9. It allows users to touch, feel and manipulate 3-D objects in virtual environments.
  10. 10.  Common interface devices like mouse and joystick are only input devices. No feedback.  Haptic devices are input-output devices.
  11. 11.  Provides a 3D touch to the virtual objects  When the user move his finger, then he could really feel the shape and size of the virtual 3D object that has been already programmed
  12. 12.  The CyberGrasp system fits over the user's entire hand like an exoskeleton and adds resistive force feedback to each finger  Adapted to different size of the fingers  Located on the back of the hand
  13. 13.  A technology for feeling sensation over total body
  14. 14.  Computer and video games  Disney Research Pittsburg has Shown off a technology called “Surround Haptics” that bring real life experience in video gaming and film watching
  15. 15.  Personal computers- Apple's MacBook and MacBook Pro started incorporating a "Tactile Touchpad" design. Mobile devices- Tactile haptic feedback is becoming common in cellular devices. Nokia and Prada implemented it using piezoelectric sensor pads.
  16. 16.  Robotics-Haptic technology is also widely used in teleoperation, or telerobotics.  Arts and design- Haptics is used in virtual arts, such as sound synthesis or graphic design and animation
  17. 17.  The Design Research Lab in Berlin, Germany has developed a haptic feedback glove designed specifically for blind users to improve texting capabilities.  The Lorm glove allows blind users to text by tapping various sensors, and to receive text via vibrations. Lorm glove
  18. 18.  Interaction Research group at Microsoft Research Redmond developing through user touch and feel objects inside the virtual world  flat touch screen convey depth, weight, movement, and shape  moving a finger on the screen, the user can interact with on- screen 3-D objects and experience different force responses that correspond to the physical simulation.
  19. 19.  Working time is reduced.  Communication is centered through touch and the digital world can behave like the real world.  Increase confidence in medical field.  With haptic hardware and software designer can feel the result as if he/she were handling physical objects.
  20. 20.  Higher cost.  Large weigh & size  The precision of touch require a lots of advance design.

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