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I have an unusual GPS question...
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7andy
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Joined: Jul 02, 2005
Posts: 74

PostPosted: Thu Sep 29, 2005 6:17 pm    Post subject: Reply with quote

I think I see what might do the trick here. To put this all together, as I see it, you would need a GPS inside the golfball, connected to a low power transmitter - one of the licence free 2.4 GHz ones whould do - also inside the golf ball (getting mighty crowded in there!) These transmitters are available in quite small sizes, but nonetheless a little microengineering would be required. Then you would need a receiver for this little transmitter which would then feed this signal into a bit of software in your PDA to decode the GPS>TX>-over the air->RX>PDA link, which will then allow any of the topographical GPS applications (Memory Map, Fugawi etc) to show the location of the golfball!!

All the electronics inside the golfball would need to be embedded in resin to counter the huge g-forces that will occur. It is possible. One project I remember put accelerometers inside golfballs, coupled to a low power transmitter, so that the perfomance of said golfball could be measured non-destructively - it worked too!

The other issue you will have to address is that of a power supply inside the golfball as well!

With all that to contend with, I wish you luck!!

Cheers, 7&Y
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lbendlin
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Joined: 02/11/2002 22:41:59
Posts: 11878
Location: Massachusetts, USA

PostPosted: Fri Sep 30, 2005 1:02 am    Post subject: Reply with quote

7andy wrote:


The other issue you will have to address is that of a power supply inside the golfball as well!


why not use some of the kinetic energy of the hit? The accelerometer could work as a generator for a while...
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peterc10
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Joined: Aug 21, 2005
Posts: 1761
Location: Kent, England

PostPosted: Fri Oct 14, 2005 12:44 am    Post subject: Reply with quote

Corrie wrote:
Secondly, this is a commerce program, so the engineering and complete feasibility of the product is secondary. The biggest thing is having a feasible business solution, cost efficiency, marketing projections etc. As long as it sounds possible and we have most aspects of its design and production covered, it should be good.


Why does this worry me but not surprise me. Remember these will be our leaders of the future. Engineering is dead, long live bulls***t!
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etters
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Joined: Jan 18, 2005
Posts: 172
Location: Sunny Spain

PostPosted: Fri Oct 14, 2005 2:50 pm    Post subject: Reply with quote

Hi Everyone
Just to let you know that I was on the golf course the other day and just about to tee off, when my partner heard this strange bleeping noise, when he inquired about it I told him that it was my golf ball, he asked me what it was all about, and I told him that it bleeps so that you could not lose it, just follow the bleep, good God he said, that must have cost a lot of money, no it didnt I said, I found it.
regards
geoff
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nej
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Joined: Jun 16, 2004
Posts: 454
Location: London, Ingerlund

PostPosted: Fri Oct 14, 2005 4:49 pm    Post subject: Reply with quote

Quote:
Secondly, this is a commerce program, so the engineering and complete feasibility of the product is secondary. The biggest thing is having a feasible business solution, cost efficiency, marketing projections etc. As long as it sounds possible and we have most aspects of its design and production covered, it should be good.


As long as you don't take that thinking out into the "real" world!!

Cost would be your killer anyway. GPS boards aren't that cheap (compared to a simple RF transmitter) so each ball would cost a lot of money.

Engineering-wise, you have size, power, the fact that you need a sky-facing antenna, the fact that it'll break as soon as you hit it, the fact that you would need to sit your ball on the ground for 5 minutes or more to get a GPS fix before you could even hit it and so on...

Back to la-la land; why not use RF instead of GSM to transmit the position back to the PDA. Cheaper (both to implement and in terms of running costs) and possibly a smaller circuit board.
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