Antenna synchronous mobile electronic tag reading and writing method and system

Abstract

The invention discloses a method and system for reading and writing electronic tags with synchronous movement of antennas. The method includes: sequentially setting m antennas along the feeding direction, and the antennas are arranged in order of jump distances or adjacent antennas are staggered by mq-1 jump distances; The label feeding line feeds at a constant speed, and at the same time controls the reciprocating motion of the antenna. When the antenna moves in the feeding direction, it maintains a relatively static state with the corresponding label for reading and writing operations. The antenna moves in the opposite direction of feeding, and does not work during the process of returning to the initial position. The label feeding line of the present invention maintains a constant feeding state at all times, and can adjust the moving speed of the feeding line and the antenna to match labels with different jump distances, and minimize the impact of the jump distance on production capacity; it can be used without changing the time required for reading and writing. Under certain conditions, the production capacity can be improved by increasing the reading and writing antenna, the speed of material feeding and the moving speed of the antenna; the synchronous movement of the antenna increases the time that the tag stays in the effective reading and writing area, meets the shielding requirements required for reading and writing of the tag, and improves the reliability of reading and writing .

Description

technical field [0001] The invention relates to the technical field of electronic tags, in particular to a method and system for reading and writing electronic tags with synchronous movement of antennas. Background technique [0002] Radio frequency tags, also known as electronic tags or RFID tags, are mainly composed of large-scale integrated circuit chips with identification codes and transceiver antennas. The power used is taken from the radio wave energy received by the transceiver antenna. It has the advantages of large capacity, long communication distance, difficult to copy, high tolerance to environmental changes, and the ability to read multiple tags at the same time. [0003] At present, the code writing operation in the production process of electronic tags is mainly carried out by roll-to-roll detection and coding machines. The existing roll-to-roll detection coding machine has two feeding modes: stepping and continuous. [0004] Among them, the step-feed mode ...

AI Technical Summary

Problems solved by technology

Once the reading and writing application takes a long time, the time for reading and writing operations can only be gained by reducing the speed, thus losing the advantage of production capacity

Moreover, this continuous feeding mode cannot be used for products with a small jump distance (jump distance refers to the interval between labels appearing continuously on the backing paper, that is, the sum of the label length and spacing in the feeding direction)

In order to effectively shield, the smaller the jump distance of the tag, the smaller the effective reading and writing area of ​​the matched antenna, the smaller the allowable position deviation, the more difficult it is to debug the equipment, and it is often difficult to achieve the ideal reading and writing effect. Therefore, it is rarely used in practical applications

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