Antenna synchronous mobile electronic tag read-write method and system

Abstract

The invention discloses an antenna synchronous movement electronic tag read-write method and system. The method comprises the steps: sequentially setting m antennas in a feeding direction, and enabling the antennas to be sequentially arranged according to a hop pitch sequence or enabling the adjacent antennas to be staggered by mq1 hop pitches; controlling the label feeding line to feed at a constant speed. Meanwhile, controlling the antenna to reciprocate, keeping the antenna in a static state relative to the corresponding label when the antenna moves towards the feeding direction to perform read-write operation, and controlling the antenna to move towards the direction opposite to the feeding direction and not to work in the process of returning to the initial position. The label feeding line is kept in a constant-speed feeding state all the time, the moving speed of the feeding line and the moving speed of the antenna can be adjusted, labels with different skip distances are matched, and the influence of the skip distances on the productivity is reduced to the minimum; under the condition of not changing the time required by reading and writing, the productivity can be improved by increasing the reading and writing antenna, the feeding speed and the antenna moving speed; and the antenna synchronously moves to prolong the retention time of the label in the effective read-write area, so that the shielding requirement required by label read-write is met, and the read-write reliability is improved.

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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