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A wake-up signal matching method, device and label

A wake-up signal and matching method technology, which is applied in the field of radio frequency identification, can solve problems such as false wake-up of tags, achieve the effect of reducing volume, reducing cost, and solving false wake-up

Active Publication Date: 2016-11-23
ZTE INTELLIGENT IOT TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0010] The technical problem solved by the present invention is to provide a wake-up signal matching method, device and tag, which can solve the defect of active tags being falsely awakened and reduce the power consumption

Method used

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  • A wake-up signal matching method, device and label
  • A wake-up signal matching method, device and label

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Embodiment Construction

[0036] In order to solve the problem of false wake-up of active tags in the radio frequency identification system, this invention proposes a wake-up signal matching method, the core idea of ​​which is: when the reader communicates with the tag, it sends an air interface command to the tag, and the tag responds to the command of the reader to realize reading The communication between the reader and the tag; the command sent by the reader has a wake-up signal, that is, the notification tag switches from the dormant state to the working state.

[0037] Wherein, the wake-up signal is generally composed of several square waves with a fixed frequency. In order to better judge whether it is a wake-up signal, the present invention specifically adopts the method of 4 consecutive matching square waves. Because it is a square wave, there is no difference in phase. As long as 6 consecutive transition interrupts are caught, it can be considered that 4 square wave matches have been complete...

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Abstract

Disclosed are a method for awaking signal matching, an apparatus and a label, applied to a radio frequency identification system. The method comprises: a reader sending an awaking signal to a label, the awaking signal being formed of multiple square waves with fixed frequency; the label determining whether the awaking signal is received in a manner of matching square waves, and if it is determined that the awaking signal is received, switching from a dormant state to a working state. Disclosed is a method for solving the problem that an active label is awaken by mistake in a radio frequency identification system, which reduces the cost of the active label, solves the defect that the active label is awaken by mistake, reduces the power consumption of the active label, reduces the volume of the active label, and can satisfy various application scenarios.

Description

technical field [0001] The invention relates to the technical field of radio frequency identification, in particular to a wake-up signal matching method, device and label. Background technique [0002] Radio Frequency Identify (RFID for short) is a non-contact automatic identification technology that automatically identifies target objects 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. [0003] The RFID system mainly includes tags and readers. RFID includes passive radio frequency identification and active radio frequency identification, and the essential difference between the two lies in the tag side. Tags are specifically divided into active electronic tags, semi-active electronic tags and passive electronic tag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/00G06K19/07
CPCG06K19/0705
Inventor 李龙贾桂丽侯晓凡
Owner ZTE INTELLIGENT IOT TECH
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