RFID tag device

An RFID tag and loop technology, applied in the field of radio frequency identification, can solve the problems of mutual shielding, the reader cannot identify the tag, and the loop signal cannot be generated, so as to solve the identification problem, avoid the signal blind area, and improve the reading efficiency.

Inactive Publication Date: 2017-06-06
HAIER SMART HOME CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the tag is perpendicular to the direction of the electromagnetic wave emitted by the antenna of the reader or the two tags are close together, the coupling circuit of the passive tag is not easy to generate circuit coupling in the magnetic field, and cannot generate a loop signal
Especially when used in the refrigerator, after the user stores a large amount of labeled ingredients in the refrigerator, the two labels may shield each other or the label space is perpendicular to the magnetic field direction of the reader's antenna, and coupling cannot occur, resulting in the reader being unable to identify this tag

Method used

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Embodiment Construction

[0032] In the embodiment of the present invention, the RFID tag device may generally include a structural member and at least one RFID tag loop disposed on the structural member. As those skilled in the art can realize, the RFID tag circuit usually includes an IC chip and an oscillation circuit composed of an antenna coil and a capacitor. The antenna coil is used to receive the signal sent by the reader and transmit the required data back to the reader.

[0033] In particular, the structural member has at least two working surfaces forming an acute or obtuse angle with each other, and the aforementioned at least one RFID tag loop includes at least two antenna coils, and each antenna coil is arranged on one working surface. That is to say, the structural member has more than two working surfaces, and any two working surfaces are neither parallel nor perpendicular, and an antenna coil is arranged on each working surface. In the present invention, an RFID tag device is composed ...

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Abstract

The present invention provides a RFID tag device. The device comprises a structure piece which has at least two work surfaces having an acute angle or an obtuse angle with each other; and at least one RFID tag loop arranged on the structure piece, wherein the at least one RFID tag loop comprises at least two antenna coils, wherein each antenna coil is arranged to be located at one work surface. The RFID tag device can realize the arrangement of the two antenna coils with a acute angle or an obtuse angle with each other on the space to prevent the planes where the two antenna coils are located from being vertical or parallel so as to ensure that the at least one antenna coil is not perpendicular to the antenna transmission electromagnetic wave direction to effectively avoid signal blind area phenomenon and improve the tag identification and reading efficiency.

Description

technical field [0001] The invention relates to radio frequency identification technology, in particular to an RFID tag device. Background technique [0002] Radio Frequency Identification (RFID) is a wireless communication technology that can identify specific targets and read and write related data through radio signals without establishing mechanical or optical contact between the identification system and specific targets. After the tag enters the magnetic field, it receives the radio frequency signal sent by the reader, and sends out the product information stored in the chip (passive tag or passive tag) by virtue of the energy obtained by the induced current, or the tag actively sends a signal of a certain frequency to read After the device reads and decodes the information, it sends it to the central information system for relevant data processing. Considering the cost at present, most of the existing home appliances use passive tags, that is, passive tags. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/07G06K19/077G06K7/10
CPCG06K19/0723G06K7/10316G06K19/0772G06K19/07775
Inventor 李京昌唐松志吴敏
Owner HAIER SMART HOME CO LTD
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