![History and development
The first US patent for a tactile telephone was granted toThomas
D. Shannon in 1973.
An early tactile man-machine communication system was
constructed by A. Michael Noll at BellTelephone Laboratories, Inc.
in the early 1970s] and a patent was issued for his invention in
1975.]](https://image.slidesharecdn.com/hapticscomp-190418135616/85/presentation-on-Haptic-Technology-7-320.jpg)
presentation on Haptic Technology
- 1. Intro to Haptic technology SAI RAM .E
- 2. CONTENTS… What is haptics History and development Introduction to haptics How haptics works? Applications of Haptics Haptic devices Advantages Limitations Future scope
- 4. HAPTICS FEEDBACK • 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 • weight • hardness • strength • elasticity • Shape • density • Texture • Smoothness • Roughness
- 7. History and development The first US patent for a tactile telephone was granted toThomas D. Shannon in 1973. An early tactile man-machine communication system was constructed by A. Michael Noll at BellTelephone Laboratories, Inc. in the early 1970s] and a patent was issued for his invention in 1975.]
- 8. Types of haptics 1.Tactile feed back 2.Force feedback 3.Haptic touch screen 4.Ultra haptics
- 9. 1.Tactile feedback haptics Refers to the sensations felt by the skin It allows the user to feel the texture of the virtual objects Haptics uses a vibrating component (sometimes called actuator) such as a vibration motor or a linear resonant actuator which is driven by an electronic circuit. It is common for a microcontroller to decided when to vibrate and with which pattern, and for a dedicated haptic driver chip to control the actuator. By means of electrical impulses, a user is able to receive a wide range of sensations which can not be reproduced with any other feedback systems that currently exist.
- 10. 2.Force feedback haptics It reproduces the diretionall forces that result from solid boundaries The user can feel physical forces like • weight • hardness • strength • elasticity • Shape • density
- 13. Cybergrasp glove
- 14. 2.Haptic glove • This device fits over the user's entire hand like an exoskeleton and adds resistive force feedback to each finger. • Five actuators produce the forces, which are transmitted along tendons that connect the fingertips to the exoskeleton. • With the CyberGrasp system, users are able to feel the size and shape of virtual objects that only exist in a computer-generated world. • To make sure a user's fingers don't penetrate or crush a virtual solid object, the actuators can be individually programmed to match the object's physical properties.
- 15. GLOVE ONE
- 18. Specs..
- 20. 3.Touch screen haptics • Haptics, touch feedback technology creates the perception of pressing physical switches. • The process of authentication can be enhanced with a touch screen that provides tactile or touch feedback.
- 22. Ultra haptics –SENSATION OFTOUCH IN MID-AIR UltraHaptics technology uses ultrasound to create rich, three-dimensional shapes and textures in mid-air that can be touched and felt, but not seen.
- 23. ULTRAHAPTIC DEVICE • Leap Motion Controller(motion recoganizer) • Ultrasound transducer array(AC to ultrasound) • Logic processor board • UltrahapticsApplication ProgrammingInterface(API)— controls modulation frequency Components Hardware: SOFTWARE, TOOLS AND SUPPORT •Software Development Kit (C#, C++ API and Unity®) •Support for Windows, OSX and Linux based platforms •Sensation Editor tool: rapidly evaluate and experiment with mid-air haptics sensations
- 25. Working of the device Each of our Ultrahaptics kits come with the Leap Motion® camera module and an ultrasound array. • The Leap Motion® camera module uses visible and infrared light to track hand position and as such, has a very high resolution, typically sub-millimetre. • The Ultrahaptics array uses ultrasound to create the control points felt by you in mid-air. • The dimensions of the control points are determined by the wavelength of the ultrasound. Currently, our technology uses transducers with a frequency of 40kHz, i.e. a wavelength of approximately 8mm. So each control point will be approximately 8mm in diameter. • However, the Ultrahaptics array is capable of steering the position of these control points with a much higher resolution and at a very high update rate, allowing accurate placement of each on the fingers and hands and the creation of immersive and tangible haptic sensations
- 26. How the magic works Ultrahaptics uses ultrasound to create and manipulate focused points of high acoustic pressure. These Control points can be moved around in real-time to interact with our hands to create a sensation. The surface of the hands are covered with sensitive nerve endings called mechanoreceptors. Because these are not sensitive to a constant high pressure the control points are manipulated, either by moving them – Spatio-Temporal Modulation – or changing their intensity with a lower frequency wave – Amplitude Modulation.
- 28. applications AUTOMOTIVES Ultrahaptics makes the driving experience safer by enabling drivers to keep their eyes on the road while still maintaining intuitive control of infotainment and audio systems.
- 29. Applications of haptic technology 1.Computer and video games • Haptic feedback is commonly used in arcade games,especially racing video games • Disney Research,Pittsburg(DRP) has shown off a revolutionary technology called ‘Surround Haptics that can bring real life experience in video gaming and film watching.
- 30. Surround haptics • Surround Haptics is a new tactile technology that uses a low-resolution grid of inexpensive vibrating actuators to generate high-resolution, continuous, moving tactile strokes on human skin . • The user would not feel the discrete tactile pulses and buzzes that are so common today, but rather a smooth tactile motion, akin to what we feel when someone drags a finger across our skin.
- 31. 2.Personal computers Apple’s MacBook, MacBook Pro and iphone7 started incorporating a “Tactile Touch pad and home button” design. A "click" on a ForceTouch keyboard isn't a true click.What feels like a click is actually haptic feedback based on the amount of pressure you've applied to the trackpad. Iphone 7
- 32. A haptic device includes a substantially transparent composite piezoelectric cell configured to measure a deformation of a surface of the cell and to provide a haptic feedback effect as a result of the deformation. Nokia phone designers have perfected a tactile touchscreen that makes on-screen buttons behave as if they were real buttons.When a user presses the button, he or she feels movement in and movement out. He also hears an audible click. Nokia engineers accomplished this by placing two small piezoelectric sensor pads under the screen and designing the screen so it could move slightly when pressed.
- 33. advantages • Communication is centered through touch and the digital world can behave like the real world. • Working time is reduced since objects can be captured, manipulated, modified and rescaled digitally. • Medical field simulators allow would be surgeons to practice digitally, gaining confidence in the procedure before working on breathing patients. • With haptic hardware and software, the designer can maneuver the part and feel the result, as if he/she were handling the physical object.
- 36. Market’s most important players: • AACTechnologies, • Alps Electric • Nidec Corporation • Cypress Semiconductor • Texas Instruments • Bluecom • On Semiconductor • Microchip • Johnson Electric • Immersion • Jinlong Machinery & Electronics • Precision Microdrives • Novasentis