where to get rfid

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archish

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I am looking for RFIDs. Right now i am working on a project and need few rfid tags and rfid reader. can anyone suggest where it may be available and whats the cost.

thanks :)
 
wasnt there a college in mumbai that was about to implement it.
Depending upon your project why dont you make a reader and tag. it wont be as portable , compact and efficient as the market ones but you just have to demonstrate its working in your project. Besides I dont think that you would get a commercially available cheap reader unless it is part of a college project coz the commercial ones would be really bulky and costly as they have to serve a very large radius.
 
~~ did my project on this building a tag.
anyway if you want to see a reader tag then walk into any showroom and you will see the tag (on some shirts besides the price mark) or as black tags. the antenna of reader the large coil antenna you see at the entrance.

Anyway the best place to start on this is by reading bookz, mags. I say go for a tag as thats where all research is. Right now the stumbling block is to make it cheap so as to offer a viable alternative to barcodes. simplicity of design and reliability are most important.

SuperNova posted 2.45 minutes later:

btw getting a tag won't do much good. Reader itself is simplistic in construction if you looking via electromagnetic single way simplex transmission. you have the antenna, BPF and if you using subFrequency then amp.(load modulation with subfrequency)
 
thanks for the info but how do i make rfid tags and readers. Its only for a small project purpose and not for an expensive solution so a simple construction will do.
 
are you trying a implementation?
well i would say plan the project first. Implementation is easy but if it does not serve any purpose it won't matter.

The main thurst In RFID is twofold

1) cheap cost with simplicity in design
2) and low power.

even if you planning a small project, it would be better if you try to think about the simplest idea you can think of to do the basic functions.

Best is go to a departmental store. ask them about the tags(they will show you the setup. Infact if you press a bit they will show the main reader and db also.. now this part depends on how good the person is :P ) ask him what his requirements are. He will say monitoring some 4-5k products. So that gives you basic idea of the bit size you looking for.

again there is multi bit and one bit implementation.

One bit is damn easy and pretty much useless now a days as it gives next to no info apart from whether the good is within or outside the range..(security) ,, multi bit is more inline used for inventory control.

either way you should start with a visit to a big departmental store.

SuperNova posted 2.2 minutes later:

btw practically speaking you will have to follow standards...
check out this site.
http://www.autoidlabs.org/
 
just trying to build a library managemen system using rfids

archish posted 1.2 minutes later:

there are no departmental stores here using rfids :(
 
hmmm...
you mean management of the students going in and out(smart card based rfid approach) or the books management which would have to be a colossal effort.(in the sense of the tags required)

btw do you want the readymade tags and wanna build the software backend.. if thats the case.. sorry i guess i was on the wrong track :ohyeah:

SuperNova posted 0.85 minutes later:

here,, this is what you will find in some shirts
aboutthelabs_top.gif


only the first image btw :P .. the whole thing got copied :)
 
the books management one. I know one will need loads of tags to stick them on to each book but this is just a project and i will be exprementing with 2 to 3 tags max :)

Also i will be doing the coding for the software that reads and stores the id , i.e the library management software. prefer to get a el chepo solution
 
saw one development kit there costing 35k...lol

archish posted 28.62 minutes later:

thanks for the help SuperNova :)
 
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