Home Key Transponders?

[thubanpete]

Raccoon has a point. We have a few electronic locks at the library where I work, and it's FUBAR time when the power goes out and we try and open the equipped doors.

In terms of implementation, what about embedding a RFID chips in the keys and reads inside the locks themselves?

(RFID info here: http://www.webopedia.com/TERM/R/RFID.html)

-ThubanPete

[Raccoon]

RFID is a similar technology to transponder ignition keys, in that a radio signal activates a coil inside the key which initiates a radio response that the lock interprets to allow/deny entry. This technology also requires a power source; the doors would have to be electric/battery equipped.

[Jaakko]

RFID is a similar technology to transponder ignition keys, in that a radio signal activates a coil inside the key which initiates a radio response that the lock interprets to allow/deny entry. This technology also requires a power source; the doors would have to be electric/battery equipped.

Not perhaps the door. Abloy CLIQ has the battery in the key and it provides power to the lock when opening the electromechanical part of the lock. That way the door doesn't need power

If my memory doesn't fail, I have seen this concept in some other locks too. Was it a Medeco or what that had the power coming from a small battery in the key itself?

[raimundo]

I learn something new every day, in this thread I learned that Shrub is a fizz-losipher, and that it would be a disaster if someone made an electronic pick, Ha, I got that beat, my door has a crappy old lock.

[mh]

If my memory doesn't fail, I have seen this concept in some other locks too. Was it a Medeco or what that had the power coming from a small battery in the key itself?

That's quite possible, as ASSA Abloy these days owns a *huge* share of the lock industry, and all their daughter companies use the CLIQ system now.

BTW,
if this project takes off
viewtopic.php?t=18719&highlight=open+source
then you can all try your hacking, manipulation and destruction skills and help to make a system that really works, is really secure (and d amn foolproof )

I doubt it will use transponders, but rather a system similar to CLIQ,
and there will be no obscurity, the level of security will be exactly known (and it will be quite high...)

Cheers,
mh

[globallockytoo]

Transponder systems for building doors have been in the works for many years. As Raccoon pointed out....it is often a necessity for the lock hardware to be electrically operated (either hardwired or battery).

There are some modern approaches like Abloy CLIQ to the market.

Check out this technology invented by a talented Scot a few years ago.

http://www.laserfocusworld.com/display_ ... tical-lock

[mh]

Check out this technology invented by a talented Scot a few years ago.

http://www.laserfocusworld.com/display_ ... tical-lock

Cool.
I can see some flaws that could be introduced while the lock is designed, but if done properly, it's a nice concept.
Very special purpose though, for cars I don't necessarily see an improvement over transponder technology.

Cheers,
mh