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Radio frequency identification system

A technology of a transmitting unit and a control unit, which is applied in the field of radio frequency identification systems and can solve problems such as the inability to detect RFID tags

Inactive Publication Date: 2012-08-01
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thus, in some cases, the RFID reader may not be able to detect the RFID tag

Method used

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  • Radio frequency identification system
  • Radio frequency identification system
  • Radio frequency identification system

Examples

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Embodiment Construction

[0017] Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

[0018] figure 1 is a block diagram illustrating the configuration of an RFID system in which the tag according to the first embodiment of the present invention has an adjustable detection range.

[0019] see figure 1 , wherein the RFID system in which the tag has an adjustable detection range according to the first embodiment of the present invention includes an RFID tag 110 and an RFID reader 120 .

[0020] The RFID tag 110 includes unique information and generates a signal of a specific frequency.

[0021] The RFID reader 120 receives a signal from the RFID tag 110, and reads the signal.

[0022] The RFID tag 110 includes an antenna 111 , a reception signal control unit 112 , a power generation unit 113 , a reception unit 114 , a transmission unit 115 , a control unit 116 and a wake-up signal generation unit 117 .

[0023]...

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PUM

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Abstract

The present invention relates to an RFID system in which an RFID tag has an adjustable detection range. An RFID system according to an embodiment of the present invention includes an RFID reader receiving a signal, reading the signal and transmitting a command signal; and an RFID tag having unique information, sensing the magnitude of the command signal received from the RFID reader, generating a voltage corresponding to the magnitude, and transmitting a response signal corresponding to the generated voltage to the RFID reader.

Description

technical field [0001] The present disclosure relates to a radio frequency identification (RFID) system that includes an RFID tag whose detection range can be changed. Background technique [0002] The RFID system is a contactless identification system for wirelessly receiving signals generated from RFID tags attached to various items and processing information about the items. [0003] Such an RFID system includes: an RFID tag with unique information; an RFID reader for reading signals from the RFID and transmitting corresponding commands to the RFID tag; and other operating software and a network. [0004] In order for an RFID reader to detect an RFID tag, first, the RFID tag should receive a signal transmitted from the RFID reader through an antenna of the RFID tag, and then the RFID reader should receive a response signal from the RFID tag without error. [0005] The detection range in which the RFID reader can detect the RFID tag between the RFID reader and the RFID ta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/00
CPCG06K19/0712
Inventor 奇泰勋裴圭成金钟培
Owner LSIS CO LTD