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Chapter 1 Sun Java System RFID Software Introduction 13

■ URIs for EPC patterns, which refer to a set of EPCs for the purpose of EPC

filtering. A pattern of “urn:epc:pat:sgtin-64:3.0652642.[1024-

2047].*” refers to any SGTIN Identifier 64-bit tag with a filter value of three, a

company prefix of 0652642, an item reference in the range from 1024 to 2047 and

any serial number.

An encoding identity layer can also be conceptualized and would comprise a pure

identity together with additional information such as the filter value, rendered into a

specific syntax (typically consisting of value fields of specific sizes). A given pure

identity may have a number of possible encodings, such as a barcode encoding,

various tag encodings, and various URI encodings. Encodings may also incorporate

additional data besides the identity such as the filter value used in some encodings,

in which case the encoding scheme specifies what additional data it can hold.

Finally, a Physical Realization of an Encoding, is an encoding rendered in a concrete

implementation suitable for a particular machine-readable form (such as a specific

kind of radio frequency tag or specific database field). This encoding can be

conceived as a lower layer, like the ISO’s Open System Interconnect with its

modeling of physical entities near the bottom of the stack.

EPC Network

The RFID Software consists of the RFID Event Manager and the RFID Information

Server modules. The RFID Event Manager gathers information from RFID readers,

filters the information, and provides the processed information to the RFID

Information Server module or to a third-party Enterprise Resource Planning (ERP)

system.

The following illustration shows how the RFID Event Manager and RFID

Information Server fit into the EPC network.

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Sensormatic View Manager 96 Console Installationsanleitung Seite 13