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[aprssig] APRS RFID apps? (Hot Spots!)

Bob Bruninga bruninga at usna.edu
Wed Feb 10 16:54:12 UTC 2010


In/OUT Hot Spots:

And if we wanted to, we could have two hot spots at each door.  One labeled APRS IN and the other APRS-OUT!

Here is  the design of the hot-spot processor:

1) The hot spot has its own 6 letter/digit call.
2) It encodes the passing RFID into the TOCALL of a packet
3) The transmission then is extremely short.
4) A central PC somewhere has a keyboard to let people enter their callsign.  Probably at the point-of-sale of the RFID card for $2.  This PC:
  A) asks for the callsign of the person holding the card
  B) Builds the file of all associations
  C) Has the exact location of the RFID readers
  D) Hears the packets from the readers, makes the association and then IT originates the APRS packet for that callsign at that location onto the APRS channel.

We may as well put the RFID readers on their own frequency to avoid congestion in getting the passing tag info to the central reader.

  E) The file of RFID/callsign associations is made available worldwide.
  F) Since the APRS packet that results from the RFID tag will be in a standard format, and will contain the RFID number too, and will appear eventually on the APRS-IS, then data bases worldwide in real-time can be gathering the associations as well.

Wow, this can work, and will make a great club project!

  G) For clubs that bring lots of folks to Dayton that have all brought their own RFID boots, one member of the club can bring a standard FILE of associations to the central PC and associate everyone at once!  And our club always maintins its own awning-lounge area in the flea market area and would bring its own HOT SPOT so that when some relaxes there, everyone else can know...

Since I already developed a data-base last year that maps every fleamarket space to a lat/long position, someone placing a  hot spot would only need to enter its space number to configure it for operation...
  H) therefore there are two formats for the READER-to-central packet.  One needs no position, beacuse the hot spot is at a fixed location loded into the central PC.  But another format is needed for a frequently moving hot spot that would include its present position as well.  

  I) Soccre Ball RFID reader:  Shucks, you could put a GPS in the hot spot and put it in a soccer ball and let people kick it anywhere they want.  When their foot hits it, we record their position!  Tihs game for APRS users only of course...

WOW
Bob, Wb4APR

>APRS RFID Hot Spots!
>
>PROBLEM SOLVED!   I was pondering how we would possibly cover all the big doors at Dayton with APRS RFID readers and then it hit me.  We Don't have to cover the whole door.  And we only need one tiny coil...
>
>We just put it in a 1 squarefoot bright yellow MAT with APRS in red written on it.  It is an APRS hot spot.  If you want to be seen at that location, swing your foot over the spot... DONE!!!!
>
>What we were overlooking is that APRS hams are not passive players, they are active participants and will be happy to swing their foot over a known hot spot (or avoid it if they are not where they are supposed to be).
>
>This solvles ALL the logistics problems I can think of.  The big breakthrough was Patrick suggesting we put the cards in our shoe, now this final breakthrough solves the range and coverage problem completely.
>
>As to applications, I can think of nothing on earth better than Dayton.  The naysayers will say but what value is it...  And I say, because its fun to do!
>
>APRS Hot SPots at Dayton...  Those people with APRS booths could put one in front of their table... etc..  Or at entrances to the Forums... or anywhere that APRS people might congregate...
>
>Bob, WB4APR
>
>
>---- Original message ----
>>Date: Mon,  8 Feb 2010 00:24:37 -0500 (EST)
>>From: aprssig-bounces at tapr.org (on behalf of "Bob Bruninga " <bruninga at usna.edu>)
>>Subject: [aprssig] APRS RFID apps?  
>>To: aprssig at tapr.org
>>
>>Now that we realize we can make APRS track anyone with a $2 credit card RFID in his boot, I have been wearing this credit card in my shoe for a week and can't even tell it is there any longer (after the first hour or so...)
>>
>>But what for?  I had some sample ideas, and figured once we figured out how to do it, an avalanche of other applications would pop up...  But after a week or so, I'm making little progress.  Here are the only apps I have come up with:
>>
>>1) At clubhouse door
>>2) at EOC door (city, county and state)
>>3) At local HAM store
>>4) At Dayton doors in each room
>>5) Just for fun with a mat in front of your fleamarket space to see who walks by?
>>
>>Of local ham events, I also don't see an immediate app.  The hams dont move much.  The event participants do.  And they are either in the thousands (runs) or out of reach... (or already have RFID (MARATHONS).
>>
>>Although a few of the dedicated volunteers that show up at all EOC tests might consider it, I cant see getting more than a yawn from the rest of a club...
>>
>>Any other knock-em-dead apps I'm missing?
>>
>>Bob, WB4APR
>>
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