Re: Re: RFID

[Wayne <Wayne@xxxxxxxxxxxxxxx>]

We found this one out the hard way.

2 different readers for 2 applications (not linked) - one reader only
ever worked when your 'fob' was touching it, the other, from about 5
inches and would read a 'glancing blow' (test environment).

Mounted new one on the wall (within 3 inches) - neither work! One
refilled hole in the wall later and about 8" separation now both work
but both now only on touching with fob. And you try matching up new and
old paint - doesn't work :)

Wayne.

ben_mccormack2000 wrote:
> I looked into RFID for a work project and found one big issue.
>
> Say you have 2 RFID tags close together ie 6 inches. If you swipe a
RFID detector near them you will sometimes pick up one and sometimes the
other. In the system I tested you could not pick up both at the same time.
>
> Something to bear in mind and test?
>
> Ben
>
>
>
> --- In ukha_d@xxxxxxx, "Martyn Wendon"
<martynwendon@...> wrote:
>
>> Anybody using RFID in any form?
>>
>> I just got a receiver and active transmitters with a pretty good
range (40m
>> although I haven't verified that yet) and am going to use them for
presence
>> detection of cars (home / away).
>>
>> There's a xAP application that works very well and coupled with
the
>> excellent xAP Floorplan I can trigger events based on cars being
here or
>> not.
>>
>>
>> Anybody else doing anything similar or have any other ideas for
usage?
>>
>>
>>
>> Cheers,
>>
>> Martyn
>>
>>
>
>
>
>
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