Shared Flashcard Set

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Edge processing
N/A
10
Computer Science
Undergraduate 4
04/28/2012

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Cards

Term
What is edge processing?
Definition
Processing before stuff is sent to the middle-ware
Term
Why is meaningless data an issue?
Definition
RFID networks are constantly scanning, so they pick up a lot of useless data
Term
What two reasons can you think of for meaningless data?
Definition
Error messages

Tags sending data that wasn't requested
Term
Why is middleware not an ideal solution to the problem of useless data?
Definition
Middleware needs to be stored in a centralised location so that all data that is captured goes through it
Term
Where does edge processing determine which data needs to be stored?
Definition
At the edge, near the reader.
Term
What is smoothing?
Definition
Ignoring temporary data and inconsistencies to avoid meaningless data
Term
How does smoothing work in 'RFID Anywhere'?
Definition
An event is generated only when something of interest happens
Term
What is filtering
Definition
IGnore data matching certain criteria
Term
What values can you filter by?
Definition
Location
Time interval
Item type
Term
What three things much the RFID server be able to do?
Definition
Minimize the amount of data communicated

Make comms as efficient as possible

Make system robust to outages etc
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