RFID (Radio Frequency Identification Device) identification method suitable for rapid moving articles

Abstract

The invention discloses an RFID (Radio Frequency Identification Device) identification method suitable for rapid moving articles. The method comprises the following steps: constructing an RFID identification channel fully covered by radio frequency signals above a conveying channel of labeled articles; dynamically setting each identification unit on the RFID identification channel to be differentchannels, wherein the radio frequency coverage area edges of two adjacent identification units are overlapped to form a radio frequency overlapping area; and judging whether the label article is in anon-radio-frequency overlapping area or a radio-frequency overlapping area in the RFID identification channel, so as to respectively control the start and stop of each identification unit according tothe non-radio-frequency overlapping area or the radio-frequency overlapping area. According to the RFID identification method, a plurality of identification units can work at the same time in a non-radio-frequency overlapping area; by dynamically setting channels, each identification unit is enabled to work on respective different frequency channels at present, so that conflict interference between radio frequency modules is greatly reduced; time-sharing control is adopted in a radio frequency overlapping area, so that the problem of interference between the reader-writer and the label can beavoided.

Description

technical field [0001] The invention relates to an RFID identification method, in particular to an RFID identification method suitable for fast-moving articles. Background technique [0002] RFID technology is a wireless communication technology that uses radio frequency signals to conduct non-contact two-way communication, automatically identify target objects and obtain relevant information data. With the advancement of science and technology, RFID has been involved in all aspects of people's daily life, and is widely used in industrial automation, logistics sorting automation, item management, anti-counterfeiting labels and other fields. [0003] Taking the sorting of logistics items as an example, in the prior art, the logistics company will attach RFID tags to the items, and install the multi-antenna RFID identification device on the line of item sorting. The speed of the sorting line is generally less than 1.5m / s, the working process is: the multi-antenna RFID reader...

AI Technical Summary

Problems solved by technology

[0004] With the rapid development of the logistics industry, especially the business explosion of e-commerce, express delivery, airports and other industries, and the rising labor costs, it is imperative to speed up the sorting system. 3m / s) through the radiation range of multiple antennas, at this time, some of the reader antennas that can identify the RFID tag of the item are just in a non-working state, so they cannot recognize the electronic tags passing through its radiation range, resulting in missing identification

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