Yup, the hotel type of system is quite inappropriate for
a residence I think. The swipe card systems used in many
office buildings are quite a bit more reliable but
certainly not immune to problems.
In my experience, the keypad systems give the least trouble,
in part because there's no keycard to loose or damage.
I once owned a condo in a complex of 100. The outer
security system (card key swipe system) cost $40K and
gave a lot of trouble. I think it was a bad system --
I've worked in offices where the cardkey access control
worked just fine. Nevertheless, at the condo, the keypad
on the garage entrance never failed to work, to the best
of my recollection.
| Malcolm Hoar "The more I practice, the luckier I get". |
On Wed, 28 Feb 2007 15:06:54 GMT, "JoeSpareBedroom"
Good point. My wife is a frequent business traveller, and this has
happened to her many times. She usually uses a house phone to call
the front desk and raises hell until they agree to send someone up
with a new keycard.
swipe card systems are inferior to RFID based proximity
systems. many high tech buildings use them in place of
the swipe cards. they're recognizable by a rectangular
or square surface, usually with a red LED that will flash
green (accompanied by a beep perhaps) to acknowledge your
card was picked up the antenna.
the systems do require a host computer and the associated
installation expertise (UPS backup, etc recommended). if
you really want to go all out, get a biometric scanner to
of course, there's a point of diminishing returns. if i can
just smash in your living room window, it's pointless to
even consider anything beyond a simple deadbolt
On Wed, 28 Feb 2007 20:09:39 -0500, "AntiSkidKidd"
Yes, and biometric sensors are not necessarily the top level of
security. The lower cost models (measuring thumbprints, etc.) have
been shown to be prone to fraudulent bypass with plastic/rubber
Keypads alone are OK, but you have to realize that if you have a large
complex/multiple owners/tenants etc., it becomes too much of pain to
periodically change the code. People will forget, go on vacation,
complain that can't remember the new number etc. Also, after a
while, anyone who knows the code can get in and you just don't know
who knows the code. (The pizza delivery guy, the maid, her violent
ex-con burglar/grand theft boyfirend?) ( A lot of European apartment
access systems have this weakness).
Also, with all systems, who is going to buzz in the workmen, the
elevator inspector, the meter reader, delivery people, the people that
must be on the site to repair the common areas? An expensive human
presence is usually required onsite to let people in or issue the
I wish someone would invent something like this: A slim piece of metal with
a wide part for fingers to grip. The slim part would have little peaks &
valleys on one or both sides. You'd push it into a lock and turn it. Small
enough to fit in a pocket.
On Thu, 01 Mar 2007 12:42:00 GMT, "JoeSpareBedroom"
I think you're on to something. Now just make a small hole in the
widest part so if you had more than one, you could collect them
together with a metal loop. It would be great if duplicates could be
made locally as well.
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