Method, system and device for locating RFID tag

The invention relates to a method, a system and a device for locating RFID tags. An RFID reader system and method for determining an RFID tag distance is provided herein. The RFID reader receives a first backscatter signal from an RFID tag in response to transmission of a first RF interrogation sign...

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Bibliographic Details
Main Authors MARTINEZ RENE, NIKITIN, PAVEL
Format Patent
LanguageChinese
English
Published 26.12.2023
Subjects
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:The invention relates to a method, a system and a device for locating RFID tags. An RFID reader system and method for determining an RFID tag distance is provided herein. The RFID reader receives a first backscatter signal from an RFID tag in response to transmission of a first RF interrogation signal and determines a first phase angle of the first backscatter signal. The radio transceiver device receives a second backscatter signal in response to transmission of a second RF interrogation signal and determines a second phase angle of the second backscatter signal. A main control unit determines a plurality of first distances and second distances between the RFID reader and the RFID tag based on the first phase angle and the second phase angle, and selects one of the plurality of first distances as a final distance with respect to the determined second distance. 本发明题为"用于定位RFID标签的方法、系统和装置"。本文提供了一种用于确定RFID标签距离的RFID读取器系统和方法。所述RFID读取器响应于第一RF询问信号的发送接收来自RFID标签的第一反向散射信号，并所述确定第一反向散射信号的第一相位角。无线电收发器设备响应于第二RF询问信号的发送接收第二反
Bibliography:Application Number: CN202311340443