Inventory method and inventory system for electronic tags

Abstract

The invention relates to the technical field of electronic tags, and particularly discloses an inventory method and inventory system for electronic tags. The method comprises the steps of configuringa reader-writer and an electronic tag session mode for inventory, presetting a wake-up state and a sleep state for the electronic tag in the session mode, and enabling the electronic tag in the sleepstate to automatically return to the wake-up state in one period; firstly, carrying out more than one time of sleep state inventory , so that an inventory electronic tag in the sleep state is marked as an electronic tag in the wake-up state; and then performing more than two times of wake-up state inventory, so that the inventory electronic tag in the wake-up state is marked as the electronic tagin the sleep state. According to the invention, the electronic tags in one region can be prevented from being interfered by inventory instructions in other regions, so that energy can be saved, and inventory of the electronic tags in the range can be realized as much as possible; the special problem that some electronic tags are missed in inventory is solved, and meanwhile other problems are alsosolved; not only is the inventory accuracy of the electronic tags improved, but also the inventory efficiency of the electronic tags is improved.

Description

technical field [0001] The present application relates to the technical field of electronic tags, in particular to an inventory method and an inventory system of electronic tags. Background technique [0002] In the inventory of electronic tags, the known technology is that after the reader sends an inventory command, it transmits a certain amount of energy to the connected antenna, drives the antenna to emit electromagnetic waves, and recovers and transmits the data reflected by the sensed electronic tags to the reader, and delivered to the application layer by the reader for subsequent processing. In some special cases, such as: Wake up. When the position where the electronic tag can be pasted on the surface of the object is small, a small but relatively weak signal electronic tag must be selected; b. The position and angle of the object pasted with the electronic tag are too limited, so that The antenna cannot transmit and recover electromagnetic wave signals well; c. Th...

AI Technical Summary

Problems solved by technology

However, some electronic tags in the adjacent area (2) are likely to be irradiated by the scattered electromagnetic waves of the antenna during the inventory process of the 2 wake-up states, and become sleep state, then in the next cycle (for example, within 2 seconds) 2) During the wake-up state inventory, these electronic tags in the sleep state cannot be read. However, when the sleep state inventory in area (2) is carried out, the above-mentioned tags that have become sleep state may have automatically changed to the wake-up state, so At this time, just in time to carry out the sleep state inventory of area (2), these electronic tags missed the opportunity to be inventoried again, thus causing the special problem of low inventory accuracy in adjacent areas and concurrent inventory; so in the background technology The common problem mentioned is that the items with electronic tags are indeed somewhere, but they cannot be accurately inventoried by the reader (or the antenna of the reader)

The general problem is that the effect obtained only through multiple inventory is not ideal

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