Title:
RFID TAG INFORMATION READING DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/136208
Kind Code:
A1
Abstract:
The embodiments of the present invention relate to the field of radio frequency identification technology. Disclosed is an RFID tag information reading device and method. Said device comprises: a signal management circuit, a resonant circuit and a decoding and identification circuit. The signal management circuit is connected to the resonant circuit, and the resonant circuit is connected to the decoding and identification circuit; the signal management circuit is used for outputting an operating frequency signal; the resonant circuit is used for receiving the operating frequency signal, and adjusting a capacitance value and an inductance value of the resonant circuit according to the operating frequency signal, so that the resonant circuit generates, at a frequency point of the operating frequency signal, a resonance for generating a sine wave signal, the resonant circuit is also used for generating an electromagnetic wave from the sine wave signal, radiating the electromagnetic wave to a tag, and triggering the tag to return a tag identity signal; the decoding and identification circuit is used for identifying tag information according to the tag identity signal returned by the tag. The tag reading device in the embodiments of the present invention can generate a resonance by adjusting the resonant circuit parameters, so as to enhance the transmission power, thereby effectively improving the reading distance of a reader.
Inventors:
XIE XIAOHUA (CN)
Application Number:
PCT/CN2020/140371
Publication Date:
July 08, 2021
Filing Date:
December 28, 2020
Export Citation:
Assignee:
QUECLINK WIRELESS SOLUTIONS CO LTD (CN)
International Classes:
G06K7/10
Foreign References:
| CN111178105A | 2020-05-19 | |||
| CN106341164A | 2017-01-18 | |||
| CN106341164A | 2017-01-18 | |||
| CN1523764A | 2004-08-25 | |||
| CN108319876A | 2018-07-24 |
Other References:
See also references of EP 3968210A4
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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