CN203630800U - Near-field communication tag equipment - Google Patents

Near-field communication tag equipment Download PDF

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Publication number
CN203630800U
CN203630800U CN201320778473.5U CN201320778473U CN203630800U CN 203630800 U CN203630800 U CN 203630800U CN 201320778473 U CN201320778473 U CN 201320778473U CN 203630800 U CN203630800 U CN 203630800U
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CN
China
Prior art keywords
tag
communication
inductive switch
switch circuit
communication tag
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Active
Application number
CN201320778473.5U
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Chinese (zh)
Inventor
江南春
张继军
温俊峰
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SHANGHAI FENZHONG SOFTWARE TECHNOLOGIES Co Ltd
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SHANGHAI FENZHONG SOFTWARE TECHNOLOGIES Co Ltd
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Priority to CN201320778473.5U priority Critical patent/CN203630800U/en
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Abstract

The utility model relates to near-field communication tag equipment which comprises a near-field communication tag. The near-field communication tag comprises a tag receiver, a tag transmitter, and a tag storage device, wherein the tag receiver, the tag transmitter and the tag storage device are sequentially connected. The near-field communication tag equipment also comprises an inductive switch circuit. The output end of the inductive switch circuit is connected with an enabling end of the tag receiver. The distance that an inductive switch receives an inductive signal is greater than the communication distance of the near-field communication tag. The near-field communication tag equipment can prolong the service life.

Description

A kind of near field communication tag equipment
Technical field
The utility model relates to near-field communication technical field, particularly relates to a kind of near field communication tag equipment.
Background technology
Near-field communication (Near Field Communication is called for short " NFC ") is near field communication (NFC).So-called near-field communication technology is a kind of in-plant high frequency wireless communication technology, can realize electronic identity identification or data transmission, such as the function such as credit card, access card.Near-field communication allows comparatively to approach each other simplification transaction, exchanges data and the wireless connections between two devices of (being conventionally no more than several centimetres).Near-field communication forum is found in 2004, and it has promoted sharing, matching and transaction between near field communication means, and develops and authenticated the device that meets NFC standard.
Existing near-field communication mode has three kinds: the NFC chip that, contains read head communicates with the NFC chip that contains read head, although this mode can realize data interaction between the two, the NFC chip cost that contains read head is higher; Two, do not have the NFC label of read head to communicate as calling terminal and the NFC chip that contains read head, now read the information on NFC label by NFC chip, then communicate by backstage and the terminal of this NFC label of binding; Three, NFC label and NFC label communicate.In e-commerce technology field, conventionally adopt the first and the second way to communicate.Because NFC label is limited as the indegree of writing of storer, in the time that needs rolling is carried out data writing to NFC label, can cause the lifetime of NFC label.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of near field communication tag equipment, can extend the serviceable life of near field communication tag equipment.
The utility model solves the technical scheme that its technical matters adopts: a kind of near field communication tag equipment is provided, comprise near field communication tag, described near field communication tag comprises successively connected label receiver, tag transmitter and tag ram, also comprise inductive switch circuit, the output terminal of described inductive switch circuit is connected with the Enable Pin of described label receiver; The distance of described inductive switch reception induced signal is greater than the communication distance of near field communication tag.
Described inductive switch circuit comprises inductive coil and differential amplifier, and the output terminal of described inductive coil is connected with the input end of differential amplifier, and the output terminal of described differential amplifier is connected with the Enable Pin of described label receiver.
Described inductive switch circuit comprises phototriode and phase inverter, and the output terminal of described phototriode is connected with the input end of phase inverter, and the output terminal of described phase inverter is connected with the Enable Pin of described label receiver.
Beneficial effect
Owing to having adopted above-mentioned technical scheme, the utility model compared with prior art, there is following advantage and good effect: the utility model is controlled writing of NFC label by inductive switch circuit, only have in the time that inductive switch circuit is triggered, just NFC label is carried out to write operation, thereby extend the serviceable life of NFC label.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of a kind of inductive switch circuit in the utility model;
Fig. 3 is the structural representation of another kind of inductive switch circuit in the utility model.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment are only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment of the present utility model relates to a kind of near field communication tag equipment, as shown in Figure 1, comprise near field communication tag, described near field communication tag comprises successively connected label receiver, tag transmitter and tag ram, also comprise inductive switch circuit, the output terminal of described inductive switch circuit is connected with the Enable Pin of described label receiver; The distance of described inductive switch reception induced signal is greater than the communication distance of near field communication tag.
As shown in Figure 2, described inductive switch circuit comprises inductive coil and differential amplifier, and the output terminal of described inductive coil is connected with the input end of differential amplifier, and the output terminal of described differential amplifier is connected with the Enable Pin of described label receiver.The induced voltage that inductive coil obtains is connected with the Enable Pin of the receiver in NFC label after differential amplifier amplifies, and the Enable Pin of NFC label is made as to noble potential work, and electronegative potential stops realizing above-mentioned functions.When near-field communication terminal is near inductive coil, inductive coil produces induced voltage, and this induced voltage, after differential amplifier amplifies, produces the Enable Pin of a noble potential to the receiver in NFC label, and now NFC label can carry out write operation; When near-field communication terminal leaves inductive coil, the induced voltage of inductive coil is slowly attenuated to 0, and now the Enable Pin of the receiver in NFC label is not received any signal, and NFC label cannot write.
As shown in Figure 3, described inductive switch circuit comprises phototriode and phase inverter, the output terminal of described phototriode is connected with the input end of phase inverter, the output terminal of described phase inverter is connected with the Enable Pin of described label receiver, the Enable Pin of NFC label is made as to noble potential work, and electronegative potential stops realizing above-mentioned functions.When near-field communication terminal is during near phototriode, because phototriode is blocked, be now output as electronegative potential, will produce the Enable Pin of a noble potential to the receiver in NFC label through phase inverter, now NFC label can carry out write operation; In the time that near-field communication terminal leaves phototriode, phototriode can receive light signal, is now output as noble potential, produces the Enable Pin of an electronegative potential to the receiver in NFC label after phase inverter is anti-phase, and NFC label cannot write.
The utility model is controlled writing of NFC label by inductive switch circuit, only has in the time that inductive switch circuit is triggered, and just NFC label is carried out to write operation, thereby extends the serviceable life of NFC label.

Claims (3)

1. a near field communication tag equipment, comprise near field communication tag, described near field communication tag comprises successively connected label receiver, tag transmitter and tag ram, it is characterized in that, also comprise inductive switch circuit, the output terminal of described inductive switch circuit is connected with the Enable Pin of described label receiver; The distance of described inductive switch reception induced signal is greater than the communication distance of near field communication tag.
2. near field communication tag equipment according to claim 1, it is characterized in that, described inductive switch circuit comprises inductive coil and differential amplifier, the output terminal of described inductive coil is connected with the input end of differential amplifier, and the output terminal of described differential amplifier is connected with the Enable Pin of described label receiver.
3. near field communication tag equipment according to claim 1, it is characterized in that, described inductive switch circuit comprises phototriode and phase inverter, and the output terminal of described phototriode is connected with the input end of phase inverter, and the output terminal of described phase inverter is connected with the Enable Pin of described label receiver.
CN201320778473.5U 2013-12-02 2013-12-02 Near-field communication tag equipment Active CN203630800U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320778473.5U CN203630800U (en) 2013-12-02 2013-12-02 Near-field communication tag equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320778473.5U CN203630800U (en) 2013-12-02 2013-12-02 Near-field communication tag equipment

Publications (1)

Publication Number Publication Date
CN203630800U true CN203630800U (en) 2014-06-04

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Family Applications (1)

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CN201320778473.5U Active CN203630800U (en) 2013-12-02 2013-12-02 Near-field communication tag equipment

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CN (1) CN203630800U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112803958A (en) * 2021-04-09 2021-05-14 四川科道芯国智能技术股份有限公司 NFC-SIM system, control method and mobile terminal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112803958A (en) * 2021-04-09 2021-05-14 四川科道芯国智能技术股份有限公司 NFC-SIM system, control method and mobile terminal

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