How to allow RFID access from web?
jeffjohnvol
Posts: 197
In my neighborhood they are proposing to put up a racquetball court.· Some of the homeowners have expressed concern how to let people access it without giving a key to everyone.· I thought this would be a nice project to do with the prop/RFID reader and PINK kit, but I wanted to ask the group before I propose it to the homeowners board.
What I was thinking is to have each monthly member be given an RFID tag and have that tag id stored on the prop via a SIM card reader.· If a tag is valid, than trip a relay to open the door and power the lights in the facility for an hour through a relay of some sort.
That should be fairly easy I would think, but here is where I think it would get tricky.· If I were to set up a web page that allows people to log in and reserve a court, how can I get that information to the prop?· I can do the web page with php etc, which I know well.
I was thinking of having the prop use a PINK module to download a reservation file and put it on the sim card for reference.· At the time, it would only allow the reserved person's tag id in for the first 5 minutes of the hour, or if they were a no show any other valid member could get in.
It would also be nice if an administrator could go to the website and maintain the valid list (seperate file) to be downloaded by the prop.· I can do the web stuff np.· Its the prop integration I'd be worried about.
Is that easily done with the PINK module?
Also, if we were to use a neighbor's wireless (with their permission of course), is there a wireless G adapter that can be put on the cat5 cable that would make the PINK wireless?
What I was thinking is to have each monthly member be given an RFID tag and have that tag id stored on the prop via a SIM card reader.· If a tag is valid, than trip a relay to open the door and power the lights in the facility for an hour through a relay of some sort.
That should be fairly easy I would think, but here is where I think it would get tricky.· If I were to set up a web page that allows people to log in and reserve a court, how can I get that information to the prop?· I can do the web page with php etc, which I know well.
I was thinking of having the prop use a PINK module to download a reservation file and put it on the sim card for reference.· At the time, it would only allow the reserved person's tag id in for the first 5 minutes of the hour, or if they were a no show any other valid member could get in.
It would also be nice if an administrator could go to the website and maintain the valid list (seperate file) to be downloaded by the prop.· I can do the web stuff np.· Its the prop integration I'd be worried about.
Is that easily done with the PINK module?
Also, if we were to use a neighbor's wireless (with their permission of course), is there a wireless G adapter that can be put on the cat5 cable that would make the PINK wireless?
Comments
Why not just have the web site cgi give them an encrypted auth number to write down on a card
that codes their address and the limited times that they are authorized to use the court?
The Prop then needs no internet database access for authorization nor access devices,
just a realtime clock and a keypad to enter the number and a program to calculate if it's currently valid.
...and an eeprom cache of revoked unexpired numbers, if necessary.
The RFID would be more easily trackable, and I wouldn't have to come up with a random number scheme to generate and provide to the users. Also, its not for just reservations, but also for regular members that just walk in.
The RFID tags can also be programmed into the system for say a one time use of $7.50 or a 5 hour use for $25 that can be sold to individuals (pay the lifeguard). There would be a $2 deposit on the card that they would get back when they return it.
sounds like a fun project.
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"A complex design is the sign of an inferior designer." - Jamie Hyneman, Myth Buster
DGSwaner
Besides, I'll was planning on using the sim card for datalogging the comings and goings anyway.
Has anyone ever been able to use a webcam or other camera to put the jpg on a sim card? There is a concern about people loaning out their cards, and a stillshot with each scan would help audits.
Nice project..
Log in and remember to also log out .. One hour can easy evolve to 2 hours when you are inside..
Little "overkill" maybe? -The camera..
RFID should be good enough.. [noparse];)[/noparse]
It's not Pentagon you try to protect, or is it?.. [noparse]:)[/noparse]
Think about how make the interface "safe" for public tampering.
Electronics in public is always a nice challenge for people to "hack" and disassemble..
If it was an easy do, or someone had done it, I could mention its possible.
The interface from the Internet to the Prop will be easy, but require writting your own protcol to send commands to; However the PHP page you seek would have to be hosted on a machine that will have the ability and restricted access to tell the gate your commands.·
The interface from the Biometrics to the Prop, i have no idea; But if i think correctly, the biometrics just calculates a number or series of numbers like a serial number and uses that as your fingerprint.
Just a suggestion!
-Neohd
How about a digital camera with a time-stamp feature?
You are right about an external php server.· I have several domains I could use for that [noparse]:)[/noparse]
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End dependance on foreign oil.· www.pickensplan.com
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End dependance on foreign oil.· www.pickensplan.com
when I forget to turn it off and it ruins my pictures. But it would be simple to
push the "take picture button" mechanically or electronically under control of the system.
It might be a problem to keep the camera from timing out and shutting off,
keeping it powered and ready to take a picture, staying in the right mode,
or having a lousy camera with a delay between pushing the button and taking the picture.
Also, This job is usually done very well by a CCTV DVR system.
It's possible to make one out of a PC and a webcam,
but I think the effort would only be worthwhile if you sold a lot of them.
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·- Was it pin 11 or 26?· Hmmm....··I think the smell of smoke tells the whole story.· Must be 26.
Michael King
Application Engineer
R&D
Digital Technology Group