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[aprssig] barcodes, etc.

Ray McKnight shortsheep at worldnet.att.net
Wed Feb 28 21:48:09 UTC 2007


Well, the barcode units I have also have a version that is a long distance
scanner.  They include a spot beam for aiming the scanner and can scan from
6 ft away.  You don't think it's possible to hit a runner from 6 ft if you
Had a few seconds to spot beam the target?  You could make the barcode
As wide as the runner's sign, about 1 ft?  Sounds like we need sniper
training for special event volunteers...

-----Original Message-----
From: aprssig-bounces at lists.tapr.org [mailto:aprssig-bounces at lists.tapr.org]
On Behalf Of A.J. Farmer (AJ3U)
Sent: Wednesday, February 28, 2007 09:31
To: TAPR APRS Mailing List
Subject: Re: [aprssig] barcodes, etc.

On 2/28/07, Wes Johnston, AI4PX <wes at kd4rdb.com> wrote:
> move the equipment.  Each time a runner passes a checkpoint and gets
scanned

I think this is a great discussion and there are some great ideas
here, but I can't see barcodes working for runners.  I don't think it
would be possible (or at least not reliable) to scan the barcode of a
moving runner and there is no way they are going to slow down or stop
just so you can scan a barcode that is somehow attached to them.

For slower moving objects in an event, this makes sense, but I don't
see it working for rapidly moving runners in a marathon.

For runners, how about a keypad and manual entry of their runner
number as they go by?  It is not as accurate as a barcode and some
might get missed if a big bunch goes by at one time, but it would not
impact their concentration.  The missed ones would likely be caught
and logged by the next checkpoint.

-- 
A.J. Farmer, AJ3U
http://www.aj3u.com

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