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Method and device for enhancing receiving sensitivity of RFID reader

A technology of receiving sensitivity and reader, applied in the field of radio frequency identification, to achieve the effect of high algorithm complexity, easy implementation, and low algorithm complexity

Active Publication Date: 2017-11-24
上海上大鼎正软件股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the technical problem that this document mainly solves is: it is to monitor the receiving sensitivity of RFID reader-writer
However, there is no report about this method and device

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  • Method and device for enhancing receiving sensitivity of RFID reader
  • Method and device for enhancing receiving sensitivity of RFID reader
  • Method and device for enhancing receiving sensitivity of RFID reader

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Embodiment Construction

[0043] The specific embodiments provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0044] The reference signs and components involved in the accompanying drawings are as follows:

[0045] 1. Interface circuit module 2. MCU module

[0046] 3. Security module 4. FPGA module

[0047] 5.DA conversion module 6.AD conversion module

[0048] 7. Transmitting circuit module 8. Receiving circuit module

[0049] 9. Antenna

[0050] The idea of ​​the method of the present invention is: after the radio frequency receiving circuit completes the signal demodulation, the signal returned by the label is sent to the FPGA for processing through the ADC acquisition circuit; each data processing module takes data from the acquisition data FIFO, and the data achieves the effect of multiplexing; The four data processing modules are independent and parallel in the FPGA; the data processing modules are mean value determination, peri...

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Abstract

The invention relates to a method and a device for enhancing receiving sensitivity of an RFID reader. The method comprises the following steps of data acquisition, data reuse, multi-branch parallel processing and data screening. The method and the device have the advantages that the reader achieves an index that the error rate of decoding when the label signal power is -82dBm is better than 10<-5>, the method and the device thus present obvious effects in enhancing the receiving sensitivity of the RFID reader, and a breakthrough in the reliability of a military RFID reader can be realized. The algorithm complexity is not high, realization is easy, data processed by each branch in parallel processing are homologous, and a redundant design for mutual backup is reflected.

Description

technical field [0001] The invention relates to the technical field of radio frequency identification, in particular to a method and a device for improving the receiving sensitivity of an RFID reader-writer. Background technique [0002] The RFID system mainly includes RFID tags and RFID readers. Radio frequency identification is the use of readers to inventory one or more electronic tags. Military reader is a type of radio frequency identification reader, which has the characteristics of high reliability, high stability, high security and so on. The receiving sensitivity of the military reader-writer can reflect the reliability of the reader-writer, and it is very important to improve the receiving sensitivity. Research on hardware design and signal processing of radio frequency receiving circuits is the key to improving receiving sensitivity, and the challenge of signal processing research is how to quickly and correctly extract small signals. The communication between ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/10
CPCG06K7/10019
Inventor 刘春江凌国张真铭韩东升陈国炜李向如
Owner 上海上大鼎正软件股份有限公司