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Label device

A technology of equipment and tags, applied in the field of radio frequency identification, to achieve the effect of overcoming technical bottlenecks

Active Publication Date: 2014-01-22
SHANGHAI HUAHONG JITONG SMART SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is how to selectively realize radio frequency identification with a reader device through a tag, and it can be realized without manual intervention.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0027] Please refer to figure 1 , the present embodiment provides a label device, including a label chip 2 and n antennas 3, and n antennas 3 are connected to the label chip 2, and the label chip 2 is made by inputting different signals to the label chip 2 Drive one of the antennas 3 to work.

[0028] The label device also includes log 2 n pins 1, different signals are input into the label chip 2 through the pins 1, and the label chip 2 includes a selection circuit 21, and the selection circuit 21 and log 2 n pins 1 are connected, and the selection circuit selects and drives the working antenna according to the input signal of the pin 1, wherein n is an exponential multiple of 2. For example, when the number of antennas is 8, the number of pins is 3.

[0029] The signal input to each of the pins 1 includes two types of high-level signals when the power is on and low-level signals when the power is not on. For log 2 Each of the n pins 1 selects one of the signals for input,...

Embodiment 2

[0035] In this example, please refer to image 3 , the number n of the antennas is 4, and the number of the pins is 2, which are the first pin 11 and the second pin 12;

[0036] Please refer to Figure 4, Regarding the driving of the first antenna 31, the input terminal of an AND gate circuit is connected to the first pin 11 and the second pin 12 at the same time, and the output terminal is connected to the first antenna 31, when the When the first pin 11 and the second pin 12 both input a high-level signal during power-on, the first antenna 31 is driven to work;

[0037] Regarding the driving of the second antenna 32, an input terminal of a NOT gate circuit is connected to the No. 1 pin 11, and an input terminal of an AND gate circuit is connected to the output terminal of the NOT gate circuit and the No. 2 pin 12 at the same time. The output end of the gate circuit is connected to the second antenna 31, when the No. 1 pin 11 inputs a low-level signal when it is not powered...

Embodiment 3

[0042] Please refer to Figure 5 , this embodiment is different from the previous two embodiments in that it does not use pin 1 and selection circuit 21, the tag device includes a tag chip 2 and n antennas 3, and n antennas 3 are connected to the tag chip 2, By inputting different signals to the tag chip 2, the tag chip 2 drives one of the antennas 3 to work. The label device also includes a micro control unit 4, the micro control unit is connected to the label chip 2, and different signals are input to the label chip 2 through the programming of the micro control unit 4, so that the label The chip 2 drives one of the antennas 3 to work. The programming means can be obtained according to the common sense and logical reasoning of single-chip programming, so this embodiment does not need to give an example.

[0043] The tag chip 2 is provided with a register 22 that is not maintained after power-off, and a state data that drives one of the antennas 3 to work is pre-stored in th...

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PUM

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Abstract

The invention provides a label device, which comprises a label chip and n antennas, the n antennas are connected with the label chip, and by inputting different signals into the label chip, one of the antennas can be driven by the label chip to operate. Because a plurality of antennas are arranged in the label device and are simultaneously connected with the label chip, the different antennas can be selectively driven to operate by inputting different signals into the label chip, and consequently, by means of the information transmission between one antenna and a reader device, the function of radio frequency identification is carried out ultimately. In addition, selection can be carried out by changing input signals without requiring the manual setting of the label chip, consequently, the technical bottleneck and prejudice in the prior art are overcome, and the technical problem on how to carry out the selective radio frequency identification between a label and the reader device is solved.

Description

technical field [0001] The invention relates to the field of radio frequency identification, in particular to a label device. Background technique [0002] Radio Frequency Identification (English: Radio Frequency IDentification, abbreviation: RFID) is a wireless communication technology that can identify specific targets through radio signals and read and write related data without establishing mechanical or optical contact between the identification system and specific targets. [0003] Radio signals transmit data from a tag attached to an item through an electromagnetic field tuned to a radio frequency to automatically identify and track the item. Some tags can get energy from the electromagnetic field emitted by the identifier during identification, and do not need batteries; there are also tags that have their own power supply and can actively emit radio waves (electromagnetic fields tuned to radio frequencies). Tags contain electronically stored information and can be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/077
Inventor 郁迅彭凌祺谷文龙
Owner SHANGHAI HUAHONG JITONG SMART SYST
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