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label equipment

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

Active Publication Date: 2017-03-29
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
Comparison scheme
Effect test

Embodiment 1

[0027] Please refer to figure 1 This embodiment provides a tag device, which includes a tag chip 2 and n antennas 3. The n antennas 3 are connected to the tag chip 2, and the tag chip 2 is made by inputting different signals to the tag 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 to the tag chip 2 through the pin 1, the tag chip 2 includes a selection circuit 21, the selection circuit 21 and log 2 The n pins 1 are connected, and the selection circuit selects and drives the antenna according to the input signal of the pin 1, where 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 pin 1 includes a high-level signal when the power is on and a low-level signal when the power is off. 2 Each of the n pins 1 selects one signal for input, thereby generating n kinds of signal permutations and combinations, and the perm...

Embodiment 2

[0035] In this example, please refer to image 3 , The number of the antennas n is 4, 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 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 both the first pin 11 and the second pin 12 input a high-level signal when the power is turned on, the first antenna 31 is driven to work;

[0037] Regarding the driving of the second antenna 32, an input terminal of a NOT circuit is connected to the first pin 11, and an input terminal of an AND circuit is simultaneously connected to the output terminal of the NOT circuit and the second pin 12. The output terminal of the gate circuit is connected to the second antenna 31. When the first pin 11 inputs a low level signal when the power is off, and the second ...

Embodiment 3

[0042] Please refer to Figure 5 This embodiment is different from the previous two embodiments in that it does not use the pin 1 and the selection circuit 21. The tag device includes a tag chip 2 and n antennas 3, and the 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, which is connected to the label chip 2, and is programmed by the micro-control unit 4 to input different signals to the label chip 2 so that the label The chip 2 drives one of the antennas 3 to work, and 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 be illustrated.

[0043] The tag chip 2 is provided with a register 22 that is not maintained after power-off. The register 22 prestores a state data for driving one of the antennas 3 to work. When the tag chi...

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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 and read and write related data through radio signals without requiring mechanical or optical contact between the identification system and specific targets. [0003] The radio signal is an electromagnetic field tuned to a radio frequency to transmit data from the tag attached to the item to automatically identify and track the item. Some tags can obtain energy from the electromagnetic field emitted by the recognizer during identification, and do not require a battery; there are also tags that have a power source and can actively emit radio waves (electromagnetic fields adjusted to radio frequencies). The label contains electronically stored information and can be...

Claims

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Application Information

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Patent Type & Authority Patents(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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