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Wireless Tag Processor

A wireless tag and processor technology, applied in the field of wireless tag processing equipment, can solve the problems of low accuracy and small communication range, and achieve the effects of convenient operation, increased communication distance and communication stability, and low bit error rate.

Active Publication Date: 2020-07-14
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The radio frequency identification tag and its reading and writing method of the invention can ensure highly reliable information reading and writing and improve the efficiency of reading and writing, but in practical applications, the possible communication range between the antenna of the invention and the tag antenna is small, and the accuracy rate may be lower

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0023] Such as Figure 1~3 As shown, the wireless tag processor includes a reader-writer 2 and an antenna 3 communicatively connected to the reader-writer 2. It is characterized in that the reader-writer 3 is electrically connected to a CPU1, and the reader-writer 2 is provided with a transceiver circuit 5 for transmitting The input end of the circuit 5 is electrically connected to the modulation circuit 11, the output end of the transceiver circuit 5 is electrically connected to the demodulation circuit 15, and the antenna 3 is connected to the radio frequency tag 4 for communication. The processor module has high combination, reasonable module setting, and stable operation. Moreover, the volume is small, and wireless communication is adopted between the reader 2, the antenna 3 and the radio frequency tag 4, which reduces the space limitation and improves the applicable area of ​​the processor.

[0024]The transceiver circuit 5 includes a transmitting module 8, a circulator 9...

Embodiment 2

[0032] Such as Figure 4 As shown, the wireless tag processor is a preferred circuit mechanism diagram during actual work. One end of the antenna 3 receives radio frequency signals from the space and transmits radio frequency signals to the space, and the other end is connected to the circulator 9. The circulator 9 is used to realize The time-division multiplexing of radio frequency signals is coupled with the transmitting integrated module 16 and the receiving integrated module 17 respectively. The coupler adopts a coupling device of conventional technology in the market. The transmitting integrated module 16 includes a power amplifier, a variable gain amplifier 1, a modulator and a DAC digital-analog The converter, when performing a write operation, transmits the digital signal output by the digital processing module 19 to the circulator 9 after digital-to-analog conversion, modulation, gain amplification and power amplification, and the circulator 9 transmits the signal to t...

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Abstract

The invention provides a wireless label processor. The processor comprises a reader-writer and an antenna which is in communication connection with the reader-writer. The processor is characterized inthat the reader-writer is electrically connected with a CPU, a transceiving circuit is arranged in the reader-writer, and a transmitting module, an circulator and a receiving module are arranged in the transceiving circuit; the input end of the transmitting module is electrically connected with a modulation circuit, the output end of the receiving module is electrically connected with a demodulation circuit, the circulator is arranged between the transmitting module and the receiving module, and the antenna is in communication connection with a radio frequency tag. The associative property ofa processor module is high, setting of the module is reasonable, work is stable, the size is small, the communication distance of the wireless processor is long, the error rate is low, and the application range is wide.

Description

technical field [0001] The invention relates to a wireless label processing device, in particular to a wireless label processor. Background technique [0002] Radio Frequency Identification (Radio Frequency Identification, referred to as: RFID) is a non-contact automatic identification technology, its basic principle is to use the transmission characteristics of radio frequency signal and space coupling (inductive or electromagnetic coupling) or radar reflection to realize the Automatic recognition of recognized objects. [0003] The RFID reader (RFID reader) communicates wirelessly with the RFID electronic tag through the antenna, and can read or write the tag identification code and memory data. A typical RFID reader includes an RFID radio frequency module (transmitter and receiver), a control unit, and a reader antenna. [0004] In the radio frequency identification system, electronic tags are also called radio frequency tags, transponders, and data carriers; readers ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/073G06K19/077G06K7/10G03F7/004
CPCG03F7/004G06K7/10465G06K19/073G06K19/0772
Inventor 朱爱意张建设江丽华李丹丹陈文静谢佳彦
Owner ZHEJIANG OCEAN UNIV
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