By V. Daniel Hunt, Albert Puglia, Mike Puglia
This booklet offers an creation to RFID expertise. It describes and addresses the next: How RFID works, the way it is and will be utilized in present and destiny functions. The background of RFID know-how, the present nation of perform and the place RFID is anticipated to be taken sooner or later. The function of middleware software program to course information among the RFID community and the knowledge know-how platforms inside of a company. advertisement and govt use of RFID expertise with an emphasis on a variety of functions together with retail and buyer packaging, transportation and distribution of goods, business and production operations, safeguard and entry keep watch over. criteria and the regulatory compliance setting and eventually, the privateness concerns confronted through the general public and in regards to the deployment of RFID know-how.
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Additional info for RFID: A Guide to Radio Frequency Identification
Some tags need to be made to withstand high heat, moisture, and caustic chemicals, and so are encased in protective materials. Others are made to be cheap and disposable, such as “smart” labels. A “smart” label is just one form of a “smart” tag, in which an RFID tag is incorporated into a paper packing label. While there are many applications in which RFID tags are anything but, the overall trend in the industry is towards this small, ﬂat label that can be applied quickly and cheaply to a box or pallet.
18 Figure 2-4 shows the two types of RFID antenna/tag coupling concepts. Frequency of operation will also dictate the type of antenna used in an RF system. At LF and HF, inductive coupling and inductive antennas are used, which are usually loop-type antennas. At UHF and microwave frequencies, capacitive coupling is used and the antennas are of the dipole type. 17 18 Radio Frequency Identiﬁ cation (RFID), Accenture, 11/16/2001. Radio Frequency Identiﬁ cation (RFID), Accenture, 11/16/2001. 7 15 Antenna Nulls and Orientation Problems Inductive antennas, such as those used at the LF and HF, operate by “ﬂooding” a read zone with RF radiation.
Once the interrogator has received the tag’s data, that information is relayed back to the controller via a standard network interface, such as an RFID-A Guide to Radio Frequency Identiﬁcation, by V. Daniel Hunt, Albert Puglia, and Mike Puglia Copyright © 2007 by Technology Research Corporation 5 6 AN OVERVIEW OF RFID TECHNOLOGY RF Module Control Module Tag Interrogator Controller Figure 2-1 The Basic Building Blocks of an RFID System. Source: LARAN RFID. ethernet LAN or even the internet. The controller can then use that information for a variety of purposes.