CCSDS 881.0-R-1, Spacecraft Onboard Interface Services—RFID ...

DRAFT RECOMMENDED PRACTICE FOR RFID-BASED INVENTORY MANAGEMENT SYSTEMSANNEX BRFID INVENTORY MANAGEMENT(INFORMATIVE)B1OVERVIEWThis annex presents typical use cases for the recommended practice of utilizing the ISO18000-6C/EPCglobal Class 1 Gen-2 RFID communication standard for PHY/MACinteroperability. Application profiles are included for the specific cases of:a) handheld RFID reader for inventory audits;b) handheld RFID reader for localizing objects;c) RFID enclosures for inventory audits;d) portal-based RFID reader.B2APPLICATION LAYER SUPPORT—LOW-LEVEL READER PROTOCOLLow-Level Reader Protocol (LLRP) is an Application layer protocol standard ratified byEPCglobal in April 2007 (see references [D3] and [D12]). It is a specification for thecommunication interface between the reader and its controlling hardware or software. Whileadoption of the EPCglobal Class 1 Gen-2 UHF air interface protocol does not requireadoption of the LLRP for the Application layer protocol, it does provide a convenient andcomplete Application layer control of the air interface protocol. It also enables third-partyextensions to be added, such that third-party add-ons to the EPCglobal Class 1 Gen-2protocol are accessible through an extended LLRP-based Application layer. The completeprotocol description, necessary to generate LLRP messages, has been implemented in anumber of open-source toolkits available in a variety of programming languages (C, C++,Java, Perl, C# and .NET) making implementation of the protocol on Linux, Windows, andother standard hardware platforms straightforward. Since this is the Application layerprotocol adopted by EPCglobal for use with its Class 1 Gen-2 protocol, it represents the bestentry point for high-level control of the Class 1 Gen-2 protocol across a wide range ofpossible RFID devices based on the Class 1 Gen-2 standard.Some LLRP parameters are referenced in this document, particularly in describing typicalsettings with respect to application profiles. Typically, the functionalities associated withthese parameters are evident by their names, and they are useful in conveying readerconfigurations even when LLRP is not being utilized as the Application layer protocol.CCSDS 881.0-R-1 Page B-1 October 2011