Lecture 2: Tactile and Kinesthetic...
Transcript of Lecture 2: Tactile and Kinesthetic...
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ME 327: Design and Control of Haptic Systems Spring 2020
Lecture 2:Tactile and Kinesthetic Devices
Allison M. OkamuraStanford University
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today’s objectives
explain the fundamentals of kinesthetic and tactile devices
consider what haptic devices are good for
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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kinesthetic vs. tactile haptic devices
Kinesthetic haptic devices display forces or motions
through a tool
Tactile haptic devices stimulate
the skin
single,resolved
forcedistributed forces/
displacements
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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kinesthetic vs. tactile haptic devices
Tactile haptic devices can more
easily be wearable
vibration feedback elementencased in glove
Kinesthetic haptic devices are usually grounded
force is transmitted from ground
to hand
motor
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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tactile (cutaneous) device basics
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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tactile feedback
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
• goal is to stimulate the skin in a programmable manner to create a desired set of sensations
• sometimes distributed tactile feedback is provided
• tactile feedback is generated by a tactile device, sometimes called a tactile display
• not usually called a tactile interface why not?
• can aim to recreate real sensations, create novel ones, or communicate information
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technologies and interaction modes
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
Jerome Pasquero, Survey on Communication through Touch, Technical Report: TR-CIM 06.04, 2006
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Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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kinesthetic (force-feedback)
device basics
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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typical kinesthetic device configurations
manipulandum
drawing by Jorge Cham
grasp
drawing by Tricia Gibo
exoskeleton
drawing byDavid Grow
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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manipulandums (expensive)
Omegafrom Force Dimension
delta configuration3 degrees of freedom
Phantom Premium 1.5from SensAble/Geomagic
5-bar + rotation3 degrees of freedom
Virtuosefrom Haption
additional “wrist”6 degrees of freedom
all images from Wikimedia Commons
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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manipulandums (cheaper)
Falcon from Novint
delta configuration3 degrees of freedom
Phantom Omni/Touchfrom SensAble/Geomagic
5-bar + rotation3 degrees of freedom
Sidewinderfrom Microsoft
spherical mechanism2 degrees of freedom
image from Wikimedia Commons photographed by Akiko Nabeshima image from Wikimedia Commons
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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Grip/grasp
© 2007 IEEE. Reprinted, with permission, from L. N. Verner and A. M. Okamura..
Effects of Translational and Gripping Force Feedback are Decoupled in a 4-Degree-
of-Freedom Telemanipulator, World Haptics Conference,, pp. 286-291, 2007
Single-finger Cybergrasp from Cyberglove Systems
photographed by Akiko Nabeshima
da Vinci Surgical Systemfrom Intuitive Surgical, Inc.(no programmable force
feedback on gripper)photograph courtesy Stanford Center for Design Research
Custom haptic gripper forPhantom Premium
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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Exoskeletons
DARPAHarvardimages from Wikimedia Commons
KINARM Exoskeletonfrom BKIN Technologies
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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Hapkit
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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Hapkit
userforce user
force
userforce
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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Hapkit
deviceforce device
force
deviceforce
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
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what are haptic devices good for?
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
this reviews points made in:K. E. MacLean. Haptic interaction design for
everyday interfaces. Reviews of Human Factors and Ergonomics, 4:149-194, 2008.
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Trends driving haptics
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
• Networking - constant connectivity
• Ubiquity of computing devices - beyond sparse visual real estate
• Multitasking - doing more things at once may benefit from multiple channels of communcation
• Virtualization - fostering presence
• Information management - volume challenge and attention challenge
• Fragmentation - time slicing interruptions by modality
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When to use haptic feedback
Stanford University ME 327: Design and Control of Haptic Systems © Allison M. Okamura, 2020
• Precise force vs. position control
• Guidance (for training or shared control)
• Abstract communication and information display
• Notifications and background awareness
• Augmentation of graphical user interfaces
• Expressive control
• Communication of affect
• Mobile and handheld computing