04-ΣΔΥ50 - ΟΣΣ1 -...

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Transcript of 04-ΣΔΥ50 - ΟΣΣ1 -...

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    #1:

    .

    ;

    ;

    ;

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    supermarket

    /

    supermarket (

    )

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    (.. ).

    .

    , /.

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    WLAN

    ( IP address)

    RFID reader

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    -

    .

    RFID tag

    supermarket online/ (. Paypal)

    supermarket ( )

    (web service)

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    #2:

    : G. Chen, D. Kotz, A Survey of Context-Aware Mobile

    Computing Research, Dartmouth Computer ScienceTechnical Report TR2000-381, Department of Computer

    Science, Dartmouth College, 2000. :

    (application event) .

    7

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    #2:

    10 :

    (low-level, high-level)

    8

    /

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    ,

    , , ,

    , , ,

    , ,

    , , ,

    , , 9

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    (bandwidth),

    ,

    /

    ,

    :

    , , , ,, ,

    :

    ( ),

    , , 10

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    #2:

    , Chen Kotz :

    ,

    .

    .

    .

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    12

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    (.. Active Map)

    (.. )

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    -

    ( .

    ; ;

    ;

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    : RFID reader RFID tag

    ( .

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    :

    ..

    (

    )

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    :

    (.. T

    ( )

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