What is LLRP?
In April 2007, EPCglobal ratified the Low Level Reader Protocol (LLRP) standard, a specification for the network interface between the reader and its controlling software or hardware. Having already standardized the tag and reader radio frequency (RF) air interface protocol with the UHF Gen 2 standard, this specification was the practical, logical next step in facilitating the adoption of EPC and RFID technology. A copy of the LLRP specification can be found on EPCglobal’s website. Other standards have been proposed for the client-to-reader network interface, so why has LLRP won out? In part, its because previous approaches did not go quite far enough to accommodate the needs of reader, controller, and application software providers – needs that included the ability to better leverage the competitive advantages of their respective products, and exploit the advantages of the underlying air protocol. In creating LLRP, EPCglobal in conjunction with reader, controller, and application soft
