Ultrahigh-frequency RFID tag digital baseband low-power-consumption system based on EPC/C-1/G-2 standard

Abstract

The invention discloses an ultrahigh-frequency RFID tag digital baseband low-power-consumption system based on an EPC / C-1 / G-2 standard. According to the system, a power consumption management module is added and used for performing dynamic power consumption management, a gated clock is adopted to perform power consumption control on other modules, and corresponding module clocks are started up andshut down according to demands to lower power consumption. The system is divided into all the independent modules according to a UHF RFID protocol of the EPC / C-1 / G-2 standard and functions, a power consumption control unit is designed, the corresponding module clocks are started up and shut down according to the demands, and power consumption reduction is realized by use of an asynchronous counter, the gated clock, a Gray code, a parallel CRC calculation method and other methods.

Description

technical field [0001] The invention relates to a low power consumption design, in particular to a low power consumption design suitable for the digital baseband of an ultra-high frequency RFID tag adopting the EPC / C-1 / G-2 standard in the Internet of Things. Background technique [0002] Radio Frequency Identification (RFID) is a technology that uses electromagnetic waves for two-way non-contact data transmission. It can work without the recognized object being within the sight range of the recognized object. It is one of the key technologies of the Internet of Things. The passive ultra-high frequency radio frequency identification technology (UHF RFID), compared with other frequency band radio frequency identification technologies, has the advantages of long reading distance, strong penetrability, fast communication speed, and the ability to identify high-speed moving objects. [0003] Studies have shown that the instantaneous energy received by an electronic tag is inver...

AI Technical Summary

Problems solved by technology

[0005] At present, the structure of the digital baseband part of the electronic tag generally adopts the finite state machine structure divided according to the function, or the CPU structure based on the CISC instruction set, but these two types of structures do not take into account the low power consumption requirements of the electronic tag in the division, usually Multiple modules cooperate and work at the same time, so it will generate a large instantaneous power consumption

Images