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Active electronic tag and method for carrying out two-way communication between active electronic tag and external node

A technology of electronic tags and nodes, applied in computer parts, cooperating devices, record carriers used by machines, etc.

Inactive Publication Date: 2011-04-06
BEIJING MASLINX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The core module 100 is composed of a microcontroller 160 and a radio frequency transceiver 120

Method used

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  • Active electronic tag and method for carrying out two-way communication between active electronic tag and external node
  • Active electronic tag and method for carrying out two-way communication between active electronic tag and external node
  • Active electronic tag and method for carrying out two-way communication between active electronic tag and external node

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Experimental program
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Embodiment Construction

[0015] An implementation solution of the electronic tag described in the present invention is described as follows.

[0016] The design of the hardware part mainly selects common components and parts in the market. The core module 100 is a chip CC2430 produced by Texas Instruments. This chip includes an 8051 microcontroller 160 and a radio frequency transceiver 120 . A general button cell is used as the power supply section 200 . The copper traces of the printed circuit board are designed to be suitable for the antenna 300 of the radio frequency transceiver frequency band 2.4 GHz.

[0017] The software part of the electronic tag sets the sleep cycle as 5 seconds. Every time after waking up from sleep, the electronic tag sends an identity frame to the external space. The electronic tag enters the receiving state once every minute, that is, after waking up every 12 times, the electronic tag transfers to the receiving state after sending the identity frame, and waits for 1 mi...

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PUM

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Abstract

The invention relates to an active electronic tag which always periodically enters a sleep state and sends information after sleep revival to save energy consumption and prolong the service life. The electronic tag only unidirectionally sends internally stored information to an external space under the overwhelming majority of conditions. The invention provides a method enabling the electronic tag to establish two-way communication with an external node as necessary. In the method, the electronic tag starts a wireless receiving module within certain specific time slots so as to be convenient to receive a communication request from the external node; the time of starting the wireless receiving module by the electronic tag has certain relevance with the information sending time of the electronic tag; and the external node captures the time of the electronic tag in a receiving state by tracking the information sending time of the electronic tag and then actively sends the communication request as necessary. The main purpose of establishing the two-way communication by the electronic tag with the external node is that the external node can change the internal information of the electronic tag, wherein the internal information includes parameters, i.e. the identity information, the revival period, and the like of the electronic tag.

Description

technical field [0001] The field of radio frequency identification technology, especially active RFID electronic tags Background technique [0002] RFID electronic tags in radio frequency identification technology are mainly divided into two categories: active electronic tags and passive electronic tags. These two types of tags are also called active electronic tags and passive electronic tags. Active electronic tags generally have electric energy storage components, which can actively send the information stored in the tag to the external space within a set time. The passive electronic tag itself does not contain energy storage components, and only receives energy and reflects information to the reader when it is close to an external read-write device. Between these two types of tags, there is a type of semi-passive electronic tags that contain batteries. However, the role of the battery in this type of tag is limited to maintaining the storage content in the tag and is ...

Claims

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Application Information

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IPC IPC(8): G06K19/07G06K19/077G06K17/00
Inventor 马永
Owner BEIJING MASLINX TECH