wireless user interface components for personal area networks kenneth p. fishkin kurt partridge...
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![Page 1: Wireless User Interface Components for Personal Area Networks Kenneth P. Fishkin Kurt Partridge Saurav Chatterjee 2002 IEEEPERVASIVE computing](https://reader030.vdocuments.us/reader030/viewer/2022032522/56649d645503460f94a46bc0/html5/thumbnails/1.jpg)
Wireless User Interface Components for Personal Area
NetworksKenneth P. Fishkin
Kurt Partridge
Saurav Chatterjee
2002 IEEE PERVASIVE computing
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Outline
Introduction Spartan BodyNet(SBN)
Server Notification ring TiltType Phicons
Orchestrating the user interface Sample applications Future works
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Introduction(1/3)
Cheap, lowpower hardware and viable wireless transceivers had make ”wearable computer” possible.
Wearable systems composed of wireless modules, known as Wireless Personal Area Networks(WPAN).
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Introduction(2/3)
A wireless wearable system: BodyNet1.Size and location 2.Customization3.Consolidation 4.Kinesthetics
Three additional benefits1.Unobtrusiveness 2.Multiplicity3.Transferability
When the components become multiple and wireless, users can capriciously pick them up, set them down, or hand them off, making them more transferable
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Introduction(3/3)
WPANs do have some disadvantages Less available power. If two PAN components are near each other, are they part of the
same PAN? Data rates are reduced.
Needing a wireless protocol standard Respect to range Frequency spectrum
The Bluetooth wireless communication protocol has recently emerged to addres this
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Spartan BodyNet
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Spartan BodyNet_Server
The server is a 3650 iPAQ, with 32 Mbytes of RAM, 16 Mbytes of ROM, and an optional 802.11b wireless LAN card
Only the processor, storage, and wireless connectivity are used
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Spartan BodyNet_notification ring
To attact the user’s attention Two LEDs, red and yellow A touch on the ring lets the user turn
notification off
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Spartan BodyNet_TiltType(1/2)
A wrist-mounted device for displaying and entering messages
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Spartan BodyNet_TiltType(2/2)
Dot motes allowed these components to communicate to each other
Measuring 2.6cm in diameter and is 8mm tall including the battery
19.2kbps data rate
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Spartan BodyNet_Phicons(1/3)
Its physical appearances are metaphors for their electronic capabilities
Phicons are easy to learn and remember For particular purpose
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Spartan BodyNet_Phicons(2/3)
With no physical connectors, there is no physical limit to the number of phicons that can interact with a system.
Phicons are also easily transferred from person to person(must be reassociated with the new user’s WPAN).
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Spartan BodyNet_Phicons(3/3)
Phicons as an aid in authorization When the WPAN detects the presence of an
authorization phicon, its applications can provide a higher level of functionality
Requiring little hardware, so it can be samll The phicon can also contain set data
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Orchestrating the user interface At any time, there is some set of user interface
components known to the system
Their capabilities might disjoint, overlap, or even be identical
User interface modules send the application a checklist indicating which features they can support
SBN user interface modules, when discovered, announce their unique identifiers, and the host application determines when and how to best interact with that module
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Sample applications(1/2)
This application involves trading stocks;a user enters a stock symbol, and TiltType displays that stock’s current value.
If the security phicon is present, then the user can specify an action to undertake with the stock
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Sample applications(2/2)
A phicon can also be used in a WPAN as a data reference
Using WPAN phicons as a remote-control device Phicons can let users temporarily lend sensitive
information TiltType can assist with entry of passwork or PINs Hidden input scenario
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Future work
Practicality Form factors, power requirements, display
characterisics, and so on
UI intermediary WPAN UI components are used as intermediaries between two
“faceless” components
Tangible transfer Integrating the transfer of part of a WPAN from one user to another
into the model.