Is it possible to create a radio frequency-based identification system that can be implemented at a factory to maintain a count of personnel entering and exiting the facility, which can then help in the case of emergency situations? —Rameez, Karachi, Pakistan ——— Dear...
I am trying to source an RFID tag that can be utilized for inventory and stock management within our stores. I would like the tag to be covert, as I intend to use it as a security device. Can you advise if there is something like this that actually exists, that can be...
If chipless RFID tags made with conductive polymers or inks can convey some information, why can't they also convey a serial number like a silicon chip-based tag? —David, Troy, Ohio ——— David, A chipless RFID tag can convey a serial number, though it does not usually...
Are standard RFID tags affected by subzero temperatures? Our freezers operate at between -8 degrees and +14 degrees Celsius (+17.6 degrees and +57.2 degrees Fahrenheit). Would this cause the tags to fail to transmit their ID numbers? —Name withheld ——— Many passive...
What is the current price of a radio frequency identification tag? —Name withheld ——— That's a bit like asking for the price of a car, or of a digital camera. It depends on the tag, its features and the quantity purchased. Invengo has been offering ultrahigh-frequency...
I wonder about the response of tags to an RFID reader. If there is one tag, the interrogator will get one response; but if there are 200 tags, will the reader receive 200 responses? And does this differ for passive and active tags? —Name withheld ——— With a passive...
I work for an apparel company. We source our goods in Asia, then sell them under our own brand name. The problem we have is that what we order from Asia is often not what arrives at our distribution center. Our partners in Asia say they ship what we order, and that...
Share your thoughts and highlights from RFID Journal LIVE! 2009, held last week in Orlando, Fla.
How can I leverage radio frequency identification to track individuals? And is there any hybrid technology available with which I can marry RFID with GPS? —Name withheld ——— There are several hybrid RFID/GPS tags on the market, but I don't advocate using them to track...
I am looking for experts in Brazil that could provide a whole end-to-end solution—from system design to ROI measurement. ——— Yes, there certainly are. You can search our online Buyer's Guide for systems integrators in Brazil. I would also recommend that you contact...
Is it possible to produce RFID tags that are temperature-activated? In other words, can they be made so that they will only transmit if a specified temperature barrier is reached? —Name withheld ——— I have not heard of a tag designed to do that. I'm pretty sure it...
How do you adjust, match and tune settings? —Name withheld ——— We assume the question refers to communication between tags and readers. Therefore, we reached out to the experts at ODIN Technologies, a leading system integrator that has been involved in numerous...