Wearable Computing

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Wearable Computing

• Yuanfang Cai
• Dec. 6, 2000

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Discussion Outline

• What is Wearable computing
• Wearable computing implementation
• Wearable computing Networking
• Wearable computing and Ubiquitous computing

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What is wearable computing

• Wearable
• Portable while operational
• Hand-free or one-handed operation
• unobtrusive
• Augmented reality
• situation aware

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gtgtWearable Computer Implementation

• Overall System Block Diagram

Com port
VGA out
Frame grabber
Network card
Wireless Network
Video Camera
Main Unit
Parallel port
Back plane
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gtgtWearable Computer ImplementationgtgtInput Device

• speech recognizer
• keyboard alternative including chording keyboards
  and special purpose keyboards
• mouse alternatives including trackballs,
  joysticks
• tab alternatives including buttons, dial
• eye trackers
• head trackers
• pen
• gesturing
• bar code reader
• video capture devices, microphones, GPS locators
• other exotic devices such as skin sensors

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gtgtWearable Computer ImplementationgtgtInput Device

• Wireless Finger Ring
• Detection of finger-tip typing
• Wireless Link
• Block Diagrams
• Chording METHOD

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Wearable Computer ImplementationgtgtInput Device
Wireless finger RinggtgtDetection of finger-tip
typing
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Wearable Computer ImplementationgtgtInput Device
Wireless finger RinggtgtWireless Link
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Wearable Computer ImplementationgtgtInput Device
Wireless finger RinggtgtBlock Diagrams
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Wearable Computer ImplementationgtgtInput Device
Wireless finger RinggtgtChording Method
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gtgtWearable Computer ImplementationgtgtOutput Device

• head mounted displays (HMDs)
• flat panels, text to speech
• tactile output
• non speech auditory output
• paper and olfactory output (scent)

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gtgtWearable Computer ImplementationgtgtOutput Device

• Augmented Reality
• Typical Augmented Reality System
• Display Technologies in Augmented Reality

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gtgtWearable Computer ImplementationgtgtOutput Device
Augmented Realitygtgt Typical Augmented Reality
System
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gtgtWearable Computer ImplementationgtgtOutput Device
Augmented Realitygtgt Display Technologies in
Augmented Reality
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gtgtWearable Computer Networking

• General requirements
• Short-ranged
• Simple in design
• Low power consumption
• Self-configuration
• Restricted to the user
• Security

• Security requirements
• Privacy
• Data Confidentiality
• Data integrity
• Access Control
• Availability
• Source Authentication

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gtgtWearable Computer Networking
BlueTooth SecuritygtgtSecurity Architecture
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gtgtWearable Computer Networking
BlueTooth SecuritygtgtKey Management
PIN
PIN
E2
E2
Authentication
Link Key
Link Key
E3
E3
Encryption
Encryption Key
Encryption Key
Encryption and Key Control
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gtgtWearable Computer Networking
BlueTooth SecuritygtgtAuthentication
Verifier (User A)
Verifier (User B)
SRES E(key, IDB, RAND)
RAND
SRES E(key, IDB, RAND)
SRES
ChecksSRES SRES
Challenge-response for symmetric key system
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Wearable Computing Ubiquitous Computing

• Properties and Problems with Ubiquitous Computing
• Privacy issues
• Difficulty with personalized information
• Properties and Problem with Wearable Computing
• Localized information
• Localized control
• Resource management
• The Combination-Hive and Locust Swarm
• A General Scenario

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Wearable Computing Ubiquitous Computing
Hi all, I am Mike, your new Boss

• Properties and Problems with Ubiquitous Computing
• Privacy issues
• Difficulty with personalized information

I am Tom !
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Wearable Computing Ubiquitous Computing

• Properties and Problem with Wearable Computing

I am Tom !
OK, I will play this song
Tom Age 25 Favorite Song My heart will go
on Email Tt_at_yahoo.com
OK, let me check his email
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Wearable Computing Ubiquitous Computing

• Properties and Problem with Wearable Computing
• 1. Localized information
• 2. Localized control

I am Tom !
A New device! It should be added to my DB.
Where is the printers driver? should I install
it?
Device Table -------------------- 1.Computer 2.Re
corder 3.Printer
Device Table -------------------- 1.Computer 2.Re
corder
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Wearable Computing Ubiquitous Computing

• Properties and Problem with Wearable Computing
• Resource management

Oh my, What should I do?
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Wearable Computing Ubiquitous Computing

• The Combination-Hive and Locust Swarm
• Why Hive?
• Agents are Autonomous
• Agents are proactive
• Agents can interact
• Agents can be mobile
• What is Locust Swarm?

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Wearable Computing Ubiquitous Computing

• Reaping the best of both worlds