RFID analysis

 

Application of RFID in book management

 

  Radio Frequency Identification (RFID) is an application technology that combines automatic identification technology and radio frequency communication technology. It is a non-contact automatic identification technology.?In recent years, RFID has attracted the attention of libraries at home and abroad.

  RFID is mainly composed of an electronic tag (Tag), a reader (Reader), and an related application system (Application System).?RFID is a network system that applies electromagnetic spectrum to deliver specific identification information in a non-contact, non-visual, and highly reliable manner.?The application of RFID system in the field of library management has updated the traditional bar code technology and security mechanism, accelerated the process of library management automation, and provided a hardware platform for the construction of digital library.

  1. Management method automation

  RFID "Smart Collection System" includes a series of automated management systems such as librarian service system, chip conversion system, self-service borrowing system, self-service book return system, collection and inventory system, and channel detection system.?Each book is tagged with an RFID tag and the RFID checker is installed at the exit of the library.?When someone leaves the library and carries an unchecked RFID-tagged book or other media material, the RFID checker will sound an alarm.?If someone tries to avoid the alarm and take the book away, the library can still track the book and put it in the same place.

  2. Advanced service model

  (1) After the reader enters the library, he or she can first retrieve the book on the self-service device.?The borrowing of books is self-help. The reader puts the selected book in front of the automatic borrower and pays his own ^one card ̄. The machine will automatically scan and then print out the book receipt.?When the book is returned, the book is placed in the automatic book return box, and the system automatically recognizes the book and processes it. In the process of borrowing books and returning books, the staff has little time to intervene.

  (2) The counter workstation can handle the borrowing and returning work at the same time, and can handle other more complicated tasks, such as renewing, fines and other operations.

  (3) The self-service enquiry system outside the library is available 24 hours a day.?The reading of electronic books and periodicals, the search for electronic materials is very convenient.

  (4) The RFID detection door system is stable (not affected by the environment).

  (5) When the collection is in stock, the librarian can read it by holding the collection check system on the shelf. The inventory time is very short. It takes a few people for a few months, and one person can complete it in half a day. It's easy to find books that are not on the shelf or in a mess, which saves manpower and material resources, and gives employees more time to help readers or add more services.

  3. RFID electronic tags have more advantages than bar codes:

  (1) The data can be updated: After the barcode is printed, it cannot be changed. The RFID electronic label can add, modify, and delete the data stored in the label without limiting the number of times.

  (2) Convenient data reading: The bar code reader can read the scanning light source on the bar code at close range without object blocking, and the RFID tag can transmit the signal as long as it is within the radio wave range.

  (3) The storage data capacity is large: the one-dimensional barcode is 50 bytes, the maximum capacity of the two-dimensional barcode can be stored from 2 to 3000 bytes; the maximum capacity of the RFID tag can reach several megabytes.

  (4) Reusable: The barcode ends with the end of the life of the product; the RFID tag can be reused because it can be updated.

  (5) The scanning speed is fast, and several data can be read at the same time: The barcode reader can only read a single barcode data at a time; the RFID tag identifier can recognize 5 tags at the same time.

  (6) Good security: All RFID tags are password protected, and highly secure protection measures make them difficult to forge.

  (7) Durability: Generally, traditional paper or plastic bar codes are sometimes difficult to identify due to damage caused by rain or moisture and handling.?RFID has the characteristics of repeated use of hundreds of thousands or even millions of times, and its material can be placed in a harsh environment, so it is more durable than bar code, and the natural cost is also saved.

  (8) Small size: Traditional magnetic bar codes are limited by volume and are not easily embedded in smaller items.?RFID is not, its mini size can be hidden in various items.