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Difference between revisions of "Physical Access Control Project"

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Elliot's been messing around with the [[Parallax RFID board]], and learning what it can/can't do, but he's terribly terribly new to RF stuff.
Elliot's been messing around with the [[Parallax RFID board]], and learning what it can/can't do, but he's terribly terribly new to RF stuff.
Wed, May 21, 2008:
Last night, we started looking at the door in question, realized that it only had a handle-lock on it, and realized that we're going to need a wholly new locking mechanism to do anything useful/secure with -- so that's going to be project #1 in terms of serious implementation.
    ''Added by Mark W, Thu, May 22, 2008:'' I think this is what you're looking for: [http://www.smarthome.com/5190s12.html Electric Door Strike]
Elliot demo'ed his knock-code routine and got some useful feedback.  Things like ambient noise and a relatively-long timeout period need improvement.
Andrew suggested using a "Sonic Screwdriver" a la Doctor Who.  This opens up all sorts of fun/funny code mechanisms.  For instance, a keyfob with an ultrasonic speaker might be sweet.  Or use LEDs and blink out a code string into a light sensor.  And like the RFID scheme, we could have individual keys for individual peoples.
Thoughts: Smart cards can offer some nice crypto, but they'd require the purchase of additional hardware ([http://www.smartcardsupply.com/Content/Hardware/AC-KIT.htm a kit]) and are more expensive than RFID (around $2.50)
Another idea I had, and kinda like, is to have a computer connected to the internet and a SIP provider (as [http://onlineapps.newsvine.com/_news/2008/05/02/1466218-land-of-the-freeware-making-and-receiving-free-phone-calls-via-any-computer-or-internet-enabled-device-with-grandcentral noted] repeatedly, you can get free inbound calls via Google [http://grandcentral.com/ GrandCentral]). When a call is received, it could listen for an access code (prepend a few digits for user id if desired)  --[[User:NikolasCo|NikolasCo]] 09:27, 28 May 2008 (UTC)
how easy is it to forge phone number? because otherwise you could just have a database of member cellphones --[[phf]]
pretty easy with asterisk and a voip provider. --[[markw]]

Revision as of 09:59, 5 June 2008


Organizing page structure, project information / updates will be here and see 'discussion' to makes comments and throw out ideas - let me know if this works/doesn't

Wed, May 14, 2008:

Andrew ("Q"), Ash, and Elliot have continued brainstorming.

Posted up a link on the blog [1] to discuss ways to go. Great suggestion (though it might have been a (brilliant) joke?) to make a DDR pad.

Elliot's been messing around with the Parallax RFID board, and learning what it can/can't do, but he's terribly terribly new to RF stuff.