RFID with library

Discussion in 'The Projects Forum' started by wrangler, Dec 21, 2013.

  1. wrangler

    Thread Starter New Member

    Nov 9, 2013
    3
    1
    Dear sir

    we're members of undergraduate senior project students. In our project we would like to use RFID technology to build a simple system to be used in library. in our project we have two shelves of books. In each book , there is a tag contains information about the book. The user of our system will enter the details of book using an application that we will build. Then the application will ask the two readers to read the tags on the books. Our application will compare the data read by the reader with the required book and then inform the user which shelf in which the required book is exist.

    can you recommend us a RFID device using JAVA or C .C++ and suitable with our project ??

    any general advice ??

    Thanks

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  2. THE_RB

    AAC Fanatic!

    Feb 11, 2008
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    Umm, books already have barcodes?

    If you try to use RFID how are you going to deal with the problem of 50 books all very close to each other, the RFID reader will pick up 50 RFID devices all at once. Even if you can read them without conflict (which I doubt) the reader will only know a total of RFIDs that it read, not a specific book.

    And if you pull a book from the shelf to read the RFID then you may as well just pull the book from the shelf and read the barcode.
     
  3. GopherT

    AAC Fanatic!

    Nov 23, 2012
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    As rb said, barcode is easy, just assign a number entry into a database. reqd the barcode and pull the data about the book from the unique barcode number in the database.

    if you want the information to be in the book rather than in the database, 2D bar codes are a much better information storage technology than RFID unless you need to read the tag without direct sight.

    2D barcode is much simpler to implement since apps to read them are every where.

    If you must use RFID, look on the TI.com website. They have dev boards and readers.

    MeadWestVaco and Alien make the tags and their sites will have the format and technology selection guide. You'll have to decide if you want a powered or passive tag, then you need to pick frequency based on distance. Then pick the amount of information you want the book to carry in the RfID tag (instead of in a database). You'll probably want to pick passive tags for a book but that gets development intensive if you are building everything from scratch.

    If you are just selecting off-the-shelf components to bolt together, that becomes much easier. Just call the suppliers. I think they are all on an industry website RFiDLive.com

    Just remember, RrFID is an old technology. The original idea was to put all the required information on the tag so, for example, a shipment of goods could be tagged and the manufacturers lot number, product name, date and other details could be written to the tag. That was way before Internet times. With Internet and databases, a unique number is all that is required and the manufacturers website can spill all kinds of information about the product, lot number, quality specifications and certificates of conformance....

    RFID is a technology that was ahead of its time when developed (1970s) and was obsolete before its time ever arrived. The industry is looking for niche applications and most companies serving this industry are having trouble.
     
    Last edited: Dec 22, 2013
  4. DickCappels

    Moderator

    Aug 21, 2008
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  5. GopherT

    AAC Fanatic!

    Nov 23, 2012
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    Yes, anti-collision techniques that work in an R&D setting are common. Getting them to work as you push a shopping cart of groceries through a checkout reader doesn't work yet (or likely ever). It has been on Walmart's requirement to the RFID industry for years and still not solved. RFIDLive.com is the industry organization's website. They used to have all kinds of White Papers of requirements and state of development for RFiD. Basically a hype machine.

    In the OPs case, how is he supposed to know which shelf to place each book upon once he reads a cartloads of books? The RfID reader is not going to give instruckptions like, "the blue book n the bottom of the cart goes on shelf B, ..." The User will have to scan them individually and get individual instructions to put them back to his desired space. That was the OP's requirement.
     
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