[Noisebridge-discuss] Creative Suggestions and Long Rambling Thread encouraged

[M. Elizabeth Scott]

The kinds of small passive low-frequency RFID tags used for pet
identification really aren't designed for long-range reading. They are
usually read at a range of inches, not feet. I've heard of demonstrations
of longer-range reading, but it requires a lot of power and a big antenna.
And probably a bit of luck.

–beth


—beth


On Sun, Nov 4, 2012 at 2:11 PM, Danny O'Brien <danny at spesh.com> wrote:

>
> Animals (like cats) are chipped do that, if found, they can be returned to
>> their owner.
>>
>> However, many people still have signs posted that they can't find their
>> chipped pets.
>>
>> Two wild-hair threads come to mind (possibly not feasible/practical):
>>
>> 1) a little peer-to-peer arduino based networks that connect to open
>> wireless and are in the street -- scanning and sending location of all
>> chipped cats it can read. So each node would be a volunteer who hosts and
>> manages this outdoor node -- this idea is riddled with problems.
>>
>> 2) find a way to actively scan. A cantena can focus in active signals
>> from miles away. The strength of those signals are, of course, much
>> stronger (and active) than what we're talking about.
>>
>
> Actually, wardriving for RFIDs would be an excellent indication of how
> vulnerable many items are to leaking information -- for instance, you could
> wardrive for passports in tourist areas, and identify certain nationalities.
>
> Kristin Paget is probably the best authority on this -- she's been
> tracking RFID devices at increasingly insane distances for a long time now.
> http://www.tombom.co.uk/blog/
> http://www.youtube.com/watch?v=BR-JXDdzCko
>
> d.
>
> On Sun, Nov 4, 2012 at 11:40 AM, Glen Jarvis <glen at glenjarvis.com> wrote:
>
>>
>> But, could we actively scan the city for a chip or set if chips?
>>
>> What other crazy hair-brained (aka: going into brainstorming mode) can be
>> used to find the chipped kitties that are stray in the city?
>>
>> G
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>
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