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[ale] OT: To catch a thief
- Subject: [ale] OT: To catch a thief
- From: jhubbslist at att.net (Jeff Hubbs)
- Date: Wed, 05 Sep 2012 21:22:53 -0400
- In-reply-to: <[email protected]>
- References: <CAOXayVsO8tR+eDysfMHXC_YE8Tq7ifoGm=8=yM4ZUCrYw7WYtg@mail.gmail.com> <[email protected]> <CAOy4Vze7yhkx8KhZTy0i69BeyBir8mGK0GavAF89=k0fcxHYPw@mail.gmail.com> <[email protected]>
Transcore is a manufacturer of those systems; I did contract work for
them a while back.
On 9/5/12 6:35 PM, JD wrote:
> On 09/05/2012 05:53 PM, David Tomaschik wrote:
>> RFID has an effective range of inches. Not something you can really
>> track down over a neighborhood. (Yes, there are exceptions, but
>> generally, RFID is VERY short range.)
> Actually, there is powered RFID that has a much larger range - 100-300 feet.
> http://www.morerfid.com/details.php?subdetail=Post&action=details&post_id=25&step=show
> No idea what the cost is, but they say it is used for tracking rail cars.
> There is probably someone from CSX lurking with more knowledge about these.
>
> Retailers have sensors for passive readers about 4 feet apart, so reading from
> 24-36 inches seems reasonable. Not really good enough for this application.
>
> I still like the ink-pack best. ;)
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