RFID denotes Radio Frequency IDentificationIt employs Radio Frequency Communications to exchange data between a portable memory device (tag) and a host computer or PLC (as on a conveyor system). Symbol multi-protocol RFID reader Gate Antennae An RFID system typically consists of a portable memory device (e.g. RFID Tag/ RFID Label/ RFID PCB) containing data storage, […] ↓ Read the rest of this entry…
Organizations like Wal-Mart, the US Department of Defense, Target and Albertson’s have all mandated that pallets and cases of product shipped to them from their suppliers must have RFID tags affixed to them. Wal-Mart has specified a starting date as January 1, 2005 with involvement in RFID pilots required of all vendors by the end […] ↓ Read the rest of this entry…
RFID systems use two (2) separate antennae; one on the Transponder (RFID Tag) and one (or more) on a reader (interrogator). RFID systems use radio transmissions via these antennae at prescribed frequencies to send energy to a Transponder (RFID Tag) that may be in reading range. Each Transponder receives this signal and returns its unique […] ↓ Read the rest of this entry…
An RFID transponder is a combination of an integrated circuit chip attached to an antenna. Transponders have varying “read and write” functionality, power sources, operating frequencies and data capacities. Read Only (R) – consisting of factory-programmed memory with permanently stored information, such as unique serial number or EPC code. It can be read multiple […] ↓ Read the rest of this entry…
Are there any health risks associated with RFID and radio waves? Some have questioned whether electromagnetic fields (EMF) generated by power lines, mobile phones, WLANs, RFID readers and other wireless devices may be harmful to human health. The World Health Organization’s research, as well as many other scientific studies, have shown that EMF exposure below […] ↓ Read the rest of this entry…
What is an RFID printer-encoder? Companies tagging goods to meet retailer mandates or improve internal processes need an RFID printer-encoder to create smart labels to affix to pallets, cases and possibly items. Smart labels, typically sold in rolls, are adhesive labels embedded with RFID tags, or transponders. The encoder electronically writes information—typically a unique ID, […] ↓ Read the rest of this entry…
Can RFID tags in consumer products be deactivated before the customer leaves the store? Yes. This is known as the “kill” command. The reader sends a code to the tag that turns the tag off permanently. When RFID systems are fully deployed in stores and most products have RFID tags in their packaging (this won’t […] ↓ Read the rest of this entry…
Will governments be able to use RFID to spy on people? If companies choose to put RFID tags in clothes and items consumers carry around, such as wallets, and consumers choose not to kill the tags in these items, it might be possible for governments to use RFID tags for surveillance. But they would have […] ↓ Read the rest of this entry…
What is the EPCIS standard? EPCIS (the Electronic Product Code Information Service) is a specification for a standard interface for accessing EPC-related information. Electronic Product Codes allow for unique serial numbers for each individual object, enabling companies to track them independently and collect real-time data about each, as well as store and act upon that […] ↓ Read the rest of this entry…
What is an agile reader? An agile reader is one that can read tags operating at different frequencies or using different methods of communication between the tags and readers. What are intelligent and dumb readers? These terms are not precise, but many people use “intelligent reader” to describe one that has the ability not just […] ↓ Read the rest of this entry…
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