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Rfid reader/writer and rfid tag system

A technology of RFID tags and readers, which is applied in the field of RFID readers and RFID tag systems, and can solve problems such as weakening and reading errors

Inactive Publication Date: 2013-09-18
ORMON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the non-reflected wave and the reflected wave are incident on the RFID tag in this state, there is a problem that the non-reflected wave and the reflected wave are combined and weakened, resulting in a point with a reading error (invalid point)

Method used

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  • Rfid reader/writer and rfid tag system
  • Rfid reader/writer and rfid tag system
  • Rfid reader/writer and rfid tag system

Examples

Experimental program
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Embodiment Construction

[0038] (1) First Embodiment

[0039] Hereinafter, embodiments of the present invention will be described with reference to the drawings. figure 1 It is a block diagram showing the overall configuration of the RFID tag system 100 according to the embodiment of the present invention. The RFID tag system 100 includes an RFID reader / writer 10 and an RFID tag 50 . The RFID reader / writer 10 includes a control unit 20 for overall control of the RFID reader / writer 10 , a transmitting unit 11 and a receiving unit 12 connected to the control unit 20 , and an antenna 13 connected to the transmitting unit 11 and the receiving unit 12 .

[0040] The control unit 20 includes: a CPU (Central Processing Unit) 23, which controls the control unit 20; a transmission data generation unit 21, which is controlled by the CPU 23, and generates predetermined transmission data such as commands; a reception data processing unit 22, It processes received data received from the RFID tag 50 . The data g...

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PUM

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Abstract

The present invention provides an RFID reader / writer in which a null point is not generated, and RFID tag system. The RFID reader / writer includes an RFID tag 55 and an RFID reader / writer 62. The RFID reader / writer 62 and the RFID tag 55 conduct communication with each other while an antenna of the RFID reader / writer 62 and an antenna 52 of the RFID tag 55 are slanted.

Description

technical field [0001] The present invention relates to an RFID (Radio Frequency Identification: radio frequency identification) reader writer (reader writer) and an RFID tag system, in particular to an RFID reader writer and an RFID tag system capable of preventing null points from being generated. labeling system. Background technique [0002] Conventionally, an RFID tag system including an RFID tag and an RFID reader / writer has been provided. In this system, the radio wave sent from the RFID reader is reflected on the ground and / or walls, etc., the reflected radio wave (reflected wave) and the non-reflected wave are synthesized and arrive at the RFID tag, and the reader receives the response of the RFID tag Signal. [0003] Existing RFID tag systems are structured as described above. When radio waves from an RFID tag are reflected on the ground and / or walls, the phase difference between the non-reflected wave and the reflected wave may be 180 degrees. If the non-refle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K17/00H01Q1/22
CPCG06K7/10168G06K7/10346G06K19/0723H01Q1/2216H01Q9/045
Inventor 野上英克
Owner ORMON CORP