Transcript http://rfid.cs.washington.edu/ Evan Welbourne University of Washington, CSE July 2008 Seattle, WA Image credit: Tom Reese, The Seattle Times http://rfid.cs.washington.edu/ RFID = Radio Frequency Identification.

http://rfid.cs.washington.edu/
Evan Welbourne
University of Washington, CSE
July 2008
Seattle, WA
Image credit: Tom Reese, The Seattle Times
http://rfid.cs.washington.edu/
RFID
=
Radio Frequency Identification
Radio Frequency Identification
http://rfid.cs.washington.edu/

Wireless identification and tracking

Information on:



tag
t
Identity
Location
Time
A
B
time location
1
A
t
t
2
3
B
C
…
…
…
C
Elements of an RFID System
http://rfid.cs.washington.edu/
Applications
Data Management
System
Network
Infrastructure
RFID Tags
RFID Reader
Reader Antenna
http://rfid.cs.washington.edu/
Where is RFID Used Today?
The Third Wave is Coming…
http://rfid.cs.washington.edu/
1960
1970
mainframe era
one-to-many

1990
PC era
one-to-one
RFID is a key enabling technology





1980
Cheap
Wireless
No batteries
Already pervasive
But there are many challenges!
2000
pervasive computing era
many-to-one
http://rfid.cs.washington.edu/
How Will We Get There?
http://rfid.cs.washington.edu/
Method 1:
Large-Scale Commercial Ventures
and Government Projects
Image credit: http://www.daniel-libeskind.com/
http://rfid.cs.washington.edu/
New Songdo City, Korea’s High-Tech Utopia
http://www.songdo.com/
http://rfidsoup.pbwiki.com/New%20Songdo%20City
http://rfid.cs.washington.edu/
http://rfid.cs.washington.edu/
Method 2:
Research Testbeds,
Careful Design and Evaluation with
Controlled User Studies
http://rfid.cs.washington.edu/
The RFID Ecosystem Project

Simulate an RFID-saturated future at scale

100s of readers and antennas, 1000s of tags

Explore applications, systems, and social impact

Do it while there is still time to learn and adapt
Project Goals
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Data Management & Systems
http://rfid.cs.washington.edu/
Cascadia System for Managing Streams of RFID Data:
1) Manages uncertainty in RFID events
2) Allows developers and users to specify events declaratively
3) Facilitates development with a RDBMS and event-based API
 Contribution: Open source release of Cascadia code in Java
Security and Privacy
http://rfid.cs.washington.edu/
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

The Panopticon
Key problem: asymmetric visibility
Privacy vs. Utility:

What information to disclose by default?

Who to disclose information to by default?

How to support applications and preserve privacy?
Image credit:
Prison building at Presidio Modelo, Isla De Juventud, Cuba (Wikipedia)
Security and Privacy
http://rfid.cs.washington.edu/

Physical Access Control (PAC) policy:



Requirements:



Each user has a personal data store (or personal view of the data)
Store contains events that occurred when and where the user was
physically present
Each user carries a personal tag
Line-of-sight information between each pair of antennas is known
and static
Key points:



Provides symmetric visibility
Models sense of sight
Enables applications which augment user’s memory
 Contribution: A default policy for socially-oriented RFID systems
http://rfid.cs.washington.edu/
Context-Aware
Friend
Time
RFID-based
Ambient
Use
and
Analysis
Object
Social
Awareness
Reminders
Networking
Finders
Tools
Applications
For
Home
and Office
Applications
http://rfid.cs.washington.edu/
Goals for applications:
1) Explore applications for home and office environment
2) Focus on socially-oriented applications
3) Study design of user interfaces:
- Privacy control
- Visualizing and understanding uncertainty
- Events and preferences
 Contribution: Ongoing user studies in a controlled environment