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Radio frequency identification tag positioning method and device, and radio frequency identification tag reader

A radio frequency identification tag and reader technology, applied in instruments, inductive record carriers, computer parts, etc., can solve the problems of high cost, low positioning accuracy, and large computing load.

Active Publication Date: 2016-03-30
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing methods have the problems of high cost, heavy calculation load, and low positioning accuracy (for example, the error of the RSS method can reach several meters)

Method used

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  • Radio frequency identification tag positioning method and device, and radio frequency identification tag reader
  • Radio frequency identification tag positioning method and device, and radio frequency identification tag reader
  • Radio frequency identification tag positioning method and device, and radio frequency identification tag reader

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Embodiment Construction

[0019] Embodiments of the present invention will be described below with reference to the drawings. It should be noted that representation and description of components and processes that are not related to the present invention and known to those of ordinary skill in the art are omitted from the drawings and descriptions for the purpose of clarity.

[0020] figure 1 A flowchart showing a method for locating an RFID tag according to an embodiment of the present invention.

[0021] In step S110 , while moving a line of RFID tags (hereinafter simply referred to as "tags") relative to the reader, a wireless signal is transmitted by the reader at predetermined time intervals in an attempt to read the tags.

[0022] A tag queue may be a queue of tags fixed to a series of stationary objects, such as a row of files on a file shelf. With the tag line at rest, the reader can be moved relative to the tag line either manually or by an actuating mechanism.

[0023] Alternatively, the r...

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PUM

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Abstract

Disclosed are a locating method and a device for radio frequency identification tags. The method comprises the following steps: under the situation that a queue which is composed of two or more radio frequency identification tags moves relative to a reader, transmitting wireless signals at intervals by the reader according to preset time, thereby trying to read the radio frequency identification tags; and confirming positions where the radio frequency identification tags are located in the queue according to the distribution of times along with the time, wherein the times are times for which the radio frequency identification tags are successfully read in the queue.

Description

technical field [0001] The invention relates to a radio frequency identification (RFID) label positioning method and equipment, in particular to a method and device for positioning RFID labels in a queue. Background technique [0002] RFID-based positioning technology usually refers to the technology of automatic identification by sending data through RFID tags or other wireless transceivers in a non-contact manner. At present, RFID positioning services are widely used in track and field competition time detection, transportation and warehousing, library tour guide interaction, indoor location awareness, personnel tracking systems, etc. Its positioning technology is mainly location-aware technology, that is, by installing RFID tags on the tracked object, and then placing the RFID tag reader at a known position, the tracked object can be detected when the tracked object enters the sensing range. Location. This method can only determine whether the tag is within the reading ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/00
Inventor 陆应亮于浩孟遥
Owner FUJITSU LTD