Re: RFID Application

You're going to have to decide what type of RFID ("RFID" has no real
meaning, other than the words themselves which do NOT imply a device type, a
bus connection, or even the protocol used to talk to the tags; it's simply
"Radio Frequency Identification"). If it were me, I'd discover which RFID
tag types you are required to use. This will limit your choice of readers.
Once you collect the list of readers that will read the tags that you have
to use, you know how you have to connect those readers to whatever device it
will work with (SDIO, Compact Flash, RS-232, USB, Bluetooth, etc.) If
you're going to try to support every tag type, prepare to have a dozen or so
different configurations. You might check with some of the portable data
collection manufacturers, as they might already have done some of the work
for some of the tag types for you. Intermec, Symbol, PSC (I guess). We
looked at trying to provide some of our devices with RFID support, but there
are just too many variations for a standard product.

We can't possibly guess at how much time you'll spend writing a
communication routine for a device that we don't have *any* idea of the
characteristics for.

Paul T.

"Zeno Loco" <info@xxxxxxxxx> wrote in message
news:d1af2c7c-43fa-4a65-918f-d42f37d6b42f@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi,
I must create a commercial offer for a RFID + GPS solution.
I have a good experience on CF+GPS programming but the RDIF is, for
me, a undiscovered word.
Now, I have the followings doubts :
. are there devices (integrating a GPS), with a free slot for RFID
card? In a first google search it seems they are not so common.
. what are the difficulties in programming a RFID communication with
mobile devices?
. how many time will I spend to develop a RFID communication routine?

There is someone that have already done this experience and that can
give me some suggestions?

Thanks
Marcello




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