YalePharmaRFID

耶鲁药业射频识别（YalePharmaRFID）系统

YalePharmaRFID, or Radio Frequency IDentification, makes it possible to locate the right item at the right place at the right time. From asset management to inventory tracking to supply chain management, YalePharmaRFID allows companies to "optimize the procurement, manufacture, distribution, sale and tracking of products," (per EPCglobal) integrating the "last mile" of the chain with the live area – be it a store shelf, a distribution center load dock or a factory floor.

How YalePharmaRFID Works
A YalePharmaRFID system has several components including chips, tags, readers and antennas. In its simplest form, a small silicon chip is attached to a small flexible antenna to create a tag. The chip is used to record and store information. When a tag is to be read, the reader (which also uses an antenna) sends it a radio signal. The tag absorbs some of the RF energy from the reader signal and reflects it back as a return signal delivering information from the tag's memory.

YalePharmaRFID Range
YalePharmaRFID systems communicate using frequencies around 900MHz with a maximum read range of 10 meters (approximately 30 feet) under ideal conditions. This makes YalePharmaRFID a promising solution for reading pallets and cartons off of conveyors or in portals from a distance. But this capability does not in any way preclude UHF from near field and near contact applications as UHF systems can be easily tailored to meet lower range requirements. This can be accomplished by reducing power at the reader, reducing the size of the reader antenna, and/or reducing the size of the tag antenna.

YalePharmaRFID Tags
YalePharmaRFID tags are designed and produced in a variety of shapes and sizes, dependent on application requirements. As UHF YalePharmaRFID has a large maximum read range to begin with, using extremely small tags for such applications as near field item level tracking (where tags may reside under bottles caps or behind product labels, for example) is promising. Applications such as pallet or case level tracking of commodities on conveyors or passing through portals, and read from a distance, typically require larger tags.

YalePharmaRFID Readers
YalePharmaRFID readers are generally composed of a computer and a radio. The computer manages communications with the network, allowing tag data to be communicated to enterprise software applications such as ERP systems. The radio controls communication with the tag, typically using a language dictated by a published protocol such as the EPC Class 1 specification. This particular protocol, one of several in use, is the most common language used by tags in supply chain applications.

Advanced YalePharmaRFID Readers
Advanced readers, such as theAlien ALR-9800, differ from basic readers in three dimensions: remote management, reader coordination and optimal read range. First, advanced readers provide for remote management on the company network. Second, advanced readers have sophisticated mechanisms to provide for the coordination of readers when many units are used in the same environment. These mechanisms help avoid interference and provide for coordinated operations. Finally, more advanced readers have advanced receiver designs that provide for the best possible read range.