Our local club has over 1100 menbers and getting everyone a new key every
year is getting to be a drag.  One menber even went so far as to get a
quote for an electronic key operated gate, looked marvelous but the quote
was $26,000 PLUS about $300/mo maintainance.  No way!

Now I have been operating an electric gate on my farm for over 15 years,
only cost $400 new but I've probably put more than that into maintainance;
still cheap.  This uses a RF 'garage door opener' type of control, not
really suitable for 1100 menbers.

The QUESTION; What would it take to adapt a battery powered laptop (need to
operate during power failure) to accept an electronic key and send out a
gate opening signal?  There would have to be say 2000 different electronic
keys and it would have to read the key and log the time entered.  A program
would set which keys are valid (who paid dues).

I would have no problem making the gate, needing only a voltage signal or
contact closure.  What I don't know about are the programs and card readers
(& writers?) and storing & downloading the collected data.  And would this
be any easier with a (ugh) PC?

I'n thinking of a laptop since older ones should be cheap and the programs
should be small and there is no need for internet speed or connections.  We
would probably need 3 systems, at least one of which is nowhere near AC
power.  For this application a  buggy monitor screen would probably be
fine, and we would make a little doghouse to shelter it from the weather
but no temperature control.  This is near Knoxville TN, weather is not too
bad - gets to 100F or so in the summer sometimes and we occasionally see
snow and freezing temps.  Since this club is a shooting range the use rate
gets real low when it snows.

ANY helpful suggestions appreciated, am I even looking in the right
direction?  Any groups that might be more fertile?  It might seem a wierd
use but there seems to be a lot of sharp people here.  TIA

Nick


Committees of Correspondence Web page:
http://www.geocities.com/CapitolHill/5357/
 -  free men own guns, slaves don't



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