An RFID tag or transponder
is a radio-electronic device consisting of an
antenna and a microchip. The antenna is required to receive electromagnetic waves
from the reader (it has its own RFID antenna) and to transmit a response radio signal.
Unique identification information is recorded on the microchip - full last name,
employee number, date of birth (manufactured), account number, etc. Each transponder
is assigned a unique number (or tag) to identify it. It is coded by the manufacturer and
cannot be rewritten (on most models, but there are exceptions).
An RFID reader
is a device that scans, processes, and sends a response signal
from tags. Students can also perform coding, ie. entering data on chips - for example,
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confirming the previous control procedure, setting / disabling access, entering
additional data.Unlike barcodes and QR codes, the reader can only display the RFID
tag automatically detects and reads not only moving but also moving objects [2].
Research methods.
We know that libraries exist in schools, colleges, high
schools, universities, and many other educational institutions. These libraries have
hundreds of books. Nowadays, in order to manage the registration and rental of these
books to users, it is necessary to first copy this information on paper and then on a
computer. One of the functions of the device I am proposing is to register and issue
books using the RFID (Radio Frequency Identification) [1] technology shown in Figure
1a. information about the book is uploaded to the web platform. This information can
be downloaded to websites and computer memory. This allows you to track book
information from anywhere.
a)
b)
Picture 1. RFID technology (contactless, remote reader)
The second function of the device is to register the reader in the library by fingerprint.
That is, the reader does not always have to carry a separate reference. The fingerprint
allows the reader to know the information [2].
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The general scheme of fingerprint and book registration is shown in picture 2.
Picture 2. General view of the recording device.
The third function of the device is to compare the weights of the books to see
if any pages of the books are torn or not. This device uses a hx711 weight sensor. This
is managed through NodeMcu. NodeMcu can transmit data via the Internet and
bluetooth.
Picture 3. General view of weight measurement
RFID Sticker Tag H3 chip for library book management. Alien H3 chip RFID
stickers are made of coated paper, which can be easily installed in the middle of the
books, which is very convenient for managing orders in the library. The Alien H3 chip
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sticker tag helps to implement smart library management, helps readers to pick up and
return books by themselves, significantly reduces fees, speeds up procedures.
The algorithm of the recording device is shown in picture 4.
Picture 4. Device algorith
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