my ppt 3
TRANSCRIPT
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PRESENTED BY:
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What is haptics?
'Haptics' - derived from the Greek word meaning 'haptein' 'Haptics' - derived from the Greek word meaning 'haptein' which means to ‘contact‘ or ‘touch’.which means to ‘contact‘ or ‘touch’.
It is the ability to touch and feel virtual objects.
Reasons for its fast-growing use:Touch is capable of simultaneous input and output. Touch is at the core of personal experience.
Haptics = Touch = Connection
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Characteristics of Haptics
““WHAT YOU SEE IS WHAT YOU SEE IS WHAT YOU FEEL !WHAT YOU FEEL !””
Unlike vision & audition, the haptic system can sense and act on the environment.
Can touch, feel, and manipulate objects in addition to seeing (and hearing) them.
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HAPTICS - IntroductionHAPTICSHAPTICS Refers to sensing & manipulation
through touch. It includes:
1. HAPTIC TECHNOLOGY- Technology that interfaces
with the user through the sense of touch.
2. HAPTIC COMMUNICATION- The means by which people
communicate via touching.
3. HAPTICS PERCEPTION The process of recognizing
objects through touch.
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Haptics TechnologyTechnology that interfaces to
the user via sense of touch by applying forces, vibrations, and/or motions to the user.
This mechanical stimulation is used to assist in the creation of virtual objects.
This emerging technology promises to have wide-reaching applications.
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Haptics communication Means by which people
and computer communicate via touching.
Touch provides information about surfaces and textures .
Touch can convey messages specifically.
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Haptic perception
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HAPTICS DEVICES
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HAPTIC GLOVE
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HIRO(Haptic Interface RObot)
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FORCE-FEEDBACK GAMING DEVICES
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1. Tactile : presence of heat & pressure.
2. Kinaesthetic :position, body movements and the forces which act on it.
3. Heat : gives the degree of hotness and coldness.
4. Texture : The roughness via friction measurement.
SENSORY INFORMTION
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HAPTICS SYSTEM1. Sensor(s).
2. Actuator (motor) control circuitry.
3. One or more actuators that either vibrate or exert force.
4. Real-time algorithms actuator control software haptic effect library.
5. Application programming interface (API).
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The API makes program calls to the actuator into the product’s OS.
The calls specify which effect in the haptic effect library to play.
When the user interacts with the product’s buttons, this control-position information is sent to the OS.
It then sends the play command through the control circuitry to the actuator.
HOW HAPTICS WORKS?
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1. Force-feedback (Force-reflecting)
Deals with devices that interact with the muscles and tendons that give the human a sensation of a force being applied.
2. Tactile-Feedback
Deals with the devices that interact with the nerve endings in the skin which indicate heat, pressure, and texture.
TYPES OF HAPTIC FEEDBACKS
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APPLICATIONS MEDICINE
CONSUSMER ELECTRONICS
MOBILE
INDUSTRIAL/
COMMERCIAL
AUTOMOTIVES
GAMING
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Help the blind on reading books that are not written in Braille Characters.
Scanned letters are translated into Braille by electrical signal.
Projects the characters on the flat surface of the device whenever the user places it on the book.
It scans the text and converts it into voice that can be played through speaker.
1. Haptic Reader for the blind
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2. Consumer Electronics
Samsung Cameras(TL220/TL225) -
Dual View Cameras Help Consumers Take the Perfect Self-Portrait on the Move
The smile detection feature automatically takes a photo when it senses a smile.
The haptic feedback on the rear LCD confirms when a selection is made.
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Some simple haptic devices in the form of game controllers are force feedback joysticks and steering wheels.
E.g.: Simulated automobile
steering wheels that are programmed to provide a "feel" of the road.
3. Gaming
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LG Cookie (LG KP500) Touchscreen Phone
with Tactile Feedback
Use tactile cues accompanying screen rotation, keypad slide, list scrolling etc.
Give the touch screen keypad touch effects for both button press and release.
4. Mobile
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Immersion’s Immersion’s Endoscopy Endoscopy AccuTouch® AccuTouch® System:System:
Enables physicians to identify and address: Common complications. Become familiar with
the devices used during the procedure.
Patented force feedback technology offers a real feel for the procedure.
5. Medicine
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A deaf person experiences the music, qualitatively similar to a normal person.
Haptic Chair has 4 contact speakers linked to a music source that vibrate in intensity according to the sound signals it receives.
AUDIO SIGNAL
DISCRETE VIBRO-TACTILE OUTPUT CHANNELS
LOGICAL PROGRESSION ALONG THE BACK OF THE BODY.
6. Haptic Chair/ Active Chair
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The haptics jacket, designed by scientists at Philips ElectronicsPhilips Electronics..
Enables movie viewers to feel movies through a sense of touch.
Makes viewers feel anxiety and other emotions through signals such as:
Sending a SHIVER up the viewer's spine.
Creating TENSION in the limbs. Creating a pulse on the chest to
simulate a RAPID HEARTBEAT.
7. Haptic Jacket
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PHANTOM OMNIA haptic device that teaches
visually impaired children how to write by providing them with a force-feedback.
Consists of a stylus mounted on a robotic arm.
Stylus moves and guides the hand of pupils in three dimensions.
8. Haptic Pen
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1. Easy to understand & operates without prior knowledge.
2. Improves user performance, productivity & usability.
3. Large reduction in manipulation errors.
4. Works with a wide range of technologies.
ADVANTAGES OF HAPTICS
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Using Technological developments we can feel the presence of our loved ones, in the near future.
FUTURE VISION
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CONCLUSION HAPTICS ARE
IMPORTANT Training Experience Testing/Experimenting
DEVELOPING APPLICATIONS Faster Portable Easier/Understandable
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REFERENCES
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