haptic technology ,by theja muppalla
DESCRIPTION
haptic technology on of the prominent technologies used now-a-days . have this ppt to get aware of actual technology we are usingTRANSCRIPT
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Haptic technology
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by
Teja Muppalla
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What is HAPTICS???The technology that interfaces human
interaction with external Environment
via touch ORIGINATED FROM GREEK WORD
“HAPTETHESAI”
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OVER VIEW
Haptic Technology is any technology interfaces the user with a virtual environment via the sense of touch by applying forces ,vibrations, and/or motions to the user.
This technology is fairly new to society but it is being improved. A Haptic Interface is what lets users interact with the technology.
Haptic technology
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Haptic are enabled by actuators that apply forces to the skin for touch feedback.
Haptic feedback use electromagnetic technologies such as vibratory motors, like a vibrating alert in a cell phone or a voice coil in a speaker, where a central mass is moved by an applied magnetic field.
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The actual process used by the software to perform its calculations is called haptic rendering. A common rendering method uses polyhedral models to represent objects in the virtual world.
The job of conveying haptic images to the user falls to the interface device.
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TECHNOLOGYHaptic interactions can be categorized
intothe different types of touch sensations a
usercan receive: Tactile feedback Force feedback
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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 from solid boundaries.
E.g. the weight of virtual objects, etc.
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Classification of Haptic Devices
Virtual reality/ Telerobotics based devices
i) Exoskeletons and Stationary device
ii) Gloves and wearable devices iii) Point-sources and Specific task
devices iv) Locomotion Interfaces Feedback devices i) Force feedback devices ii) Tactile displays
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Exoskeletons large and immobile systems that
the user must attach him or herself to.
their large size and immobile nature allow for the generation of large and varied force information.
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Gloves and wearable devices
The user can move naturally without being weighted down by a large exoskeleton or immobile device
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Point-sources and Specific task devices
Single point of contactSpecialized for performing a
particular task.Restricts the device to perform
few functions
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Locomotion Interface and full body force feedback
In a confined space, simulate unrestrained human mobility such as walking and running for virtual reality.
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What sort of technology is Haptic?
Such technology that is considered to have Haptic attributes include;
RoboticsMedicineGamesVirtual Reality
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Robotics
Robot hands can control senses such
as touch, pressure and
position. This is used
to reproduce human senses.
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Games/Virtual Reality
Virtual reality provides users with a sense of touch to visual images. Game systems such as Nintendo
64, Playstation 2, 3 and Nintendo Wii provide users with shock feedback.
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MEDICINEMedicine-Haptic interfaces for medical simulation may prove especially useful for training in minimally invasive procedures such as laparoscopy and interventional radiology as well as for performing remote surgery
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Disadvantages
• Expensive• Haptic interfaces can only exert
forces with limited magnitude and not equally well in all directions
• haptic device position sensors have finite resolution.
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CONCLUSION• The next important step towards
realistically simulated environments that have been envisioned by science fiction authors and futurists alike.
• Large potential for applications in critical fields as well as for leisurely pleasures.
• Haptic devices must be miniaturized so that they are lighter, simpler and easier to use.20
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Touch can be distributed over space and time, recorded and broadcasted like streaming data
Future Vision
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22Any Queries ??
?
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Teja muppalla