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RFID tag positioning method and device

A technology of RFID tags and positioning devices, which is applied in the field of communication, can solve the problems of large multipath signal environment interference, unguaranteed implementation effect, and low positioning accuracy, and achieve the effect of solving indoor positioning problems

Inactive Publication Date: 2020-07-14
SHANGHAI U-CARD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the positioning accuracy of this method is relatively low, and because the multipath effect of RFID signals is greatly disturbed by the environment, the actual implementation effect cannot be guaranteed.

Method used

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  • RFID tag positioning method and device

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Experimental program
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Embodiment Construction

[0028] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] method embodiment

[0030] see figure 1 , including the following steps:

[0031] S10, acquiring state data of a designated RFID tag;

[0032] S20, labeling the position information of each group of collected data as a training set;

[0033] S30, training the positioning model according to the training set;

[0034] S40, when the tag to be positioned appears in the detection area, the positioning device calculates the tag position according to the state data of the tag.

[0035] In the specific embodiment

[0036] Status data for RFID tags includes serial number, phase, signal strength, and time stamp.

[0037] In S10, the obtained state data of the designated RFID tag is stored in the data storage module in the form of a matrix.

[0038] The data is collected through the RFID reader, mainly collecting three phases, signal str...

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PUM

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Abstract

The invention discloses an RFID tag positioning method and device. The method comprises the following steps: S10, acquiring state data of a specified RFID tag; S20, performing position information labeling on each group of acquired data to serve as a training set; S30, training a positioning model according to the training set; and S40, when the tag needing to be positioned appears in the detection area, enabling a positioning device to calculate the position of the tag according to the state data of the tag. According to the invention, a plurality of RFID readers-writers acquire state data ofa specified RFID tag at the same time and mark the acquired data by using position information so as to acquire training data; and a position calculation model is trained by using the training data,and the position of the specified RFID tag is calculated by the position calculation model according to the configuration after the equipment is deployed.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to an RFID tag positioning method and device. Background technique [0002] RFID radio frequency identification is a non-contact automatic identification technology. It automatically identifies the target object and obtains relevant data through radio frequency signals. The identification work does not require manual intervention and can work in various harsh environments. RFID technology can identify high-speed moving objects and can identify multiple tags at the same time, and the operation is fast and convenient. Now RFID tags have been widely used in aviation, clothing, logistics and other fields. RFID can realize inventory, warehousing, and warehousing of corresponding goods, saving a lot of labor. However, there are many scenarios, for example, the location information of luggage tags at the airport needs to be obtained and compared when passing through the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K17/00G06N3/08
CPCG06K17/0029G06N3/084
Inventor 吴思凯刘海洋王颢
Owner SHANGHAI U-CARD TECH CO LTD