RFID Tag Design Help for High School Project - Corey

[civicboy1689]

hi. my name is corey, and for my high school project, my group and i are trying to incorporate RFID tags into the lock and ignition system in automobiles. we are having truoble building/designing the RF tags. any feedback would be greatly appreciated. thanks

 

[berkeman]

Tell us what you know already about RFID tags. How many different types are there (I mean, how many different kinds of RF schemes are used)? Specifically which type of RFID do you want to use? What frequency do you want to use? Are your tags passive, active, or RF-powered? What information do you want to have the RFID tags return?

 

[civicboy1689]

we know a little bit about rf tags, mainly how they work and what they do. we are leaning towards using an active capacitively coupled rf tag.

 

[berkeman]

Do you have a web pointer to the "capacitively coupled RF tag" technology?

 

[es1]

Also, what do you know about the lock and ignition system in automobiles?

Personally I know practically nothing about them but I would hope they were hard to tamper with which may complicate your project. But perhaps the older the car is the easier they are to modify. Anyway, I suspect actually patching it into the car will be the most difficult part so you might want to spend a little time doing research to see if this is even feasible with your particular make and model of auto.

 

[berkeman]

Oh yeah, and what method and level of encryption are you incorporating?

 

[Ouabache]

Oh yeah, and what method and level of encryption are you incorporating?

I am sure berkeman is not intending to scare you away. We'd just like to
see what kind of background information you have gathered. For a high school project, understanding the rudiments of RFID and implementing a basic application is commendable.

Perhaps you can layout for us what you have so far and what you intend to do next.

 

[berkeman]

I am sure berkeman is not intending to scare you away. We'd just like to
see what kind of background information you have gathered. For a high school project, understanding the rudiments of RFID and implementing a basic application is commendable.

Oopsies, thanks Ouabache. I spaced the part in the OP where it was a high school project. I just re-read the application (car ignition lock) and had an "oh yeah" thought.

 

[civicboy1689]

haha yea. so far we don't know a lot about rf tags, but do have a basic understanding on how they work. we are planning on using an active capacitively coupled RF tag and reciever to unlock a car and start it when the rf tag comes within 5 feet of the receiver, which will probably be located in the glove compartment or next to the fuse box.