In recent years, with the advancement of micro-integrated circuit technology, rfid readers have been developed. Passive RFID tags do not require a battery, and the energy required for the work is obtained by the magnetic field generated by the RFID reader, but the reading distance is relatively close. In the past, RFID active tags were large in size, high in power consumption, and short in life. Active RFID tags manufactured using the latest technology not only have a long reading distance, but also have the advantages of long life and reliable performance of passive tags.
The RFID reader is suitable for fast and easy system integration with reliable performance, complete functions and high security. The RFID reader consists of several parts: a real-time processor, an operating system, virtual mobile memory, and a small built-in module (with transceiver).