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Processing device for clownfish wireless tags

A technology of wireless tags and processing devices, which is applied in the field of processing devices for clownfish wireless tags, can solve problems such as the mutual influence of wireless communication sending and receiving, and information transmission error codes, so as to improve the accuracy of information transmission, read and write distance, and improve communication distance , the effect of slow attenuation

Active Publication Date: 2020-06-30
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. However, in practical applications, the wireless communication in the circuit of the invention may affect each other when sending and receiving, which may cause information transmission. bit error

Method used

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  • Processing device for clownfish wireless tags
  • Processing device for clownfish wireless tags
  • Processing device for clownfish wireless tags

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as Figure 1~6 As shown, the processing device of the clownfish wireless tag includes a reader-writer 2 and an antenna 3 communicatively connected with 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 inside 5. The input terminal of the transceiver circuit 5 is electrically connected to the modulation circuit 11, the output terminal 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. This processing device module has high combination and the module setting is reasonable , work stably and the equipment is small in size, 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 processing equipment.

[0028] The transce...

Embodiment 2

[0037] Such as Figure 6 , 7 As shown, the processing device of the clownfish wireless tag is a preferred circuit mechanism diagram during actual operation. One end of the antenna 3 receives radio frequency signals from space and transmits radio frequency signals to space, and the other end is in phase with the circulator 17 in the carrier cancellation circuit 9. connection, the circulator 17 is used to realize the time division multiplexing of the radio frequency signal, and is coupled with the transmitting integrated module 19 and the receiving integrated module 18 through the coupler I24 and the coupler II16 respectively, and the transmitting integrated module 19 includes a power amplifier, a variable gain amplifier 1, The modulator and DAC digital-to-analog converter, when performing a write operation, pass the digital signal output by the digital processing module 21 to the circulator 17 through the coupler I after digital-to-analog conversion, modulation, gain amplificat...

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PUM

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Abstract

The invention provides a clownfish wireless tag processing device, and the device comprises a reader-writer and an antenna in communication connection with the reader-writer. The device is characterized in that the reader-writer is electrically connected with a CPU, and the interior of the reader-writer is provided with a receiving and transmitting circuit; the interior of the receiving and transmitting circuit is provided with a transmitting module, a carrier counteracting circuit and a receiving module; the input end of the transmitting module is electrically connected with a modulation circuit, and the output end of the receiving module is electrically connected with a demodulation circuit; the carrier counteracting circuit is disposed between the transmitting module and the receiving module; the antenna is in communication connection with a radio frequency tag. The device is high in associative property of modules, is reasonable in setting of modules, is stable in operation, is small in size, is long in communication distance of wireless processing equipment, is low in error rate, and is wide in application range.

Description

technical field [0001] The invention relates to a wireless tag processing device, in particular to a processing device for a clownfish wireless tag. 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 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; reade...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/077G06K19/07
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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