Ultra-low power consumption digital baseband system based on UHF RFID tag chip

Abstract

The invention discloses an ultra-low power consumption digital baseband system based on an ultra-high frequency RFID tag chip, belonging to the technical field of radio frequency identification. The invention includes a power consumption control module, an initialization module, a preamble identification module, a decoding module, a command analysis module, a state control module, an encoding preprocessing module, an encoding output module, a security control module, a true random number interface and a memory interface. The invention can receive the reader signal demodulated by the radio frequency analog front end of the RFID chip, perform decoding, command analysis, and perform label state conversion in response, and then output a correct response signal back to the radio frequency analog front end. The system complies with the requirements of the GJB7377.1 protocol and supports safe identification and safe communication, which is an important improvement to the existing technology.

Description

technical field [0001] The invention relates to the technical field of radio frequency identification, in particular to an ultra-low power consumption digital baseband system based on an ultra-high frequency RFID tag chip. Background technique [0002] RFID (Radio Frequency IDentification, radio frequency identification) technology is a non-contact automatic identification technology realized by radio frequency channel. RFID is one of the core technologies of the Internet of Things, especially as the main technical means of the next-generation equipment and material management information system, which can carry out unified identification, unified management and unified control of various equipment and materials from single products, outer packaging to pallet packaging at all levels. [0003] According to different operating frequencies, RFID tags are divided into low frequency (LF), high frequency (HF), ultra high frequency (UHF) and microwave band (MW) tags. Among them, t...

AI Technical Summary

Problems solved by technology

It can be seen that for passive tags, power consumption control is still a major technical difficulty in the digital baseband system, and the security module will increase the number of logic gates in the digital baseband by 20%, and the instantaneous power consumption during encryption / decryption will be very large. The power consumption of secure passive tags with security modules is even more difficult to control

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