21 ݵü ʼ ̽ ̵ ̾, ڰ νϴ Ͱ ̽ Ʈũ Ͽ ڰ ϴ , ִ ͽ ǻãUbiquitous Computing U-city ̴. ̷ ̷ ͽ ǻ ȯ wire wireless, fixed ̵mobile Ǿ ϳ Ǿ ϸ, Ȱ ֺ ̽ ̿Ͽ ڵ鿡 ϰ ǻ ־ ϸ, ͽ ǻ ȿ ǻȰ ϱ ؼ ֺ ȯ ൿ ִ ͽ ƮũUbiquitous Sensor Networks ߷ ̾ ִ.
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Chapter 1 ͽ Ʈũ
Chapter 3 USN ƮZigbex
Chapter 5 ȯ ġ ٿε
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Chapter 7 Timer ̿ LED
Chapter 9
Chapter 11 Photo RF ţ
Chapter 13 RF ̿ ø ID о
Chapter 15 RTCReal Time Clock Ȱ
Chapter 17 ȿ
Chapter 19 Ad-hoc Flooding Ʈũ ǽ
Chapter 21 Tree ̿ Ƽ ȩ Ȱ룩