CN106156826A - A kind of NFC illegal on-off circuit - Google Patents
A kind of NFC illegal on-off circuit Download PDFInfo
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- CN106156826A CN106156826A CN201510132719.5A CN201510132719A CN106156826A CN 106156826 A CN106156826 A CN 106156826A CN 201510132719 A CN201510132719 A CN 201510132719A CN 106156826 A CN106156826 A CN 106156826A
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Abstract
The present invention provides a kind of NFC illegal on-off circuit, and including aerial coil, chip circuit and contactor, described aerial coil and described chip circuit are interconnected to form operating circuit, and described contactor is for controlling the on off state of described operating circuit.The beneficial effects of the present invention is: can greatly strengthen the security performance of NFC, and the safety approach that proposes of the present invention can also existing and following new NFC safety approach be parallel superposes use with other, do not conflict, and on the premise of ensureing that NFC technique normally uses and ensures safety, need not dramatically increase the cost of manufacture of product, there is extraordinary application prospect.
Description
Technical field
The present invention relates to nfc card technical field, particularly relate to a kind of NFC illegal on-off circuit being applied on small amount payment system.
Background technology
Near-field communication (Near Field Communication, NFC) technology is developed by non-contact radio-frequency identification (RFID), it it is a kind of short distance high frequency wireless communication technology, allow to carry out contactless Point-to-Point Data Transmission between electronic equipment, its basis is RFID and interconnection technique, running on 20cm apart from interior in 13.56MHz frequency, its transmission speed has 106 Kbit/s, 212 Kbit/s or 424 Kbit/s tri-kinds.
Current nfc card product great majority use non-active operation mode, card built-in aerial coil, nfc card sheet near NFC terminal device when, aerial coil can power to the chip within nfc card and circuit while receiving communication data automatically.So, existing nfc card product is usually and automatically starts work when near NFC terminal device.
This contactless communication technology be widely used in user bring easy-to-use while, also bring serious potential safety hazard, the various safety problems such as stolen brush occurred.Existing NFC product is usually and carries out the most perfect at aspects such as communications protocol design, product chips technology, place of safety technology and AESs.This exists for a problem, the most existing NFC security technology scheme is the most powerful, because nfc card is startup work automatically when close NFC terminal device, so along with deciphering and the continuous progress of breaking techniques, nfc card always has the probability being cracked, it is impossible to accomplish absolute safety.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of NFC illegal on-off circuit, to solve deficiency of the prior art.
In order to achieve the above object, it is an object of the invention to be achieved through the following technical solutions:
Thering is provided a kind of NFC illegal on-off circuit, wherein, including aerial coil, chip circuit and contactor, described aerial coil and described chip circuit are interconnected to form operating circuit, and described contactor is for controlling the on off state of described operating circuit.
Above-mentioned NFC illegal on-off circuit, wherein, described aerial coil, described contactor and described chip circuit are sequentially connected with.
Above-mentioned NFC illegal on-off circuit, wherein, described contactor is positioned at described chip circuit.
Above-mentioned NFC illegal on-off circuit, wherein, described contactor is regular tap, thin film switch or electrical switch, and described electrical switch includes touching electronic switch.
Compared with the prior art, the beneficial effects of the present invention is:
Can greatly strengthen the usage safety performance of nfc card, and the safety approach that proposes of the present invention can also existing and following new NFC safety approach be parallel superposes use with other, do not conflict, and on the premise of ensureing that NFC technique normally uses and ensures safety, need not dramatically increase the cost of manufacture of product, there is extraordinary application prospect.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of NFC one embodiment of illegal on-off circuit of the present invention；
Fig. 2 shows that NFC of the present invention puts the structural representation stealing brush another embodiment of on-off circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can be mutually combined.
Referring to shown in Fig. 1 and Fig. 2, NFC illegal on-off circuit of the present invention includes that aerial coil 1, chip circuit 2 and contactor 3, aerial coil 1 and chip circuit 2 are interconnected to form operating circuit, and contactor 3 is for controlling the on off state of operating circuit.Owing to aerial coil 1 and chip circuit 2 are prior art, only illustrate with block diagram herein.
User is using nfc card when, it is only necessary to opening this contactor 3, nfc card can normally use.When user need not use nfc card when, it is only necessary to close this contactor 3, any robber's brush behavior can be prevented.This contactor 3 can be common contactor, thin film switch, can also be electrical switch.
In Fig. 1, aerial coil 1, contactor 2 and chip circuit 3 are sequentially connected with, referring to shown in Fig. 2, this contactor 3 can also be installed to other positions of nfc card internal circuit, even chip internal, as long as reaching to close this switch, the duty of nfc card can be closed.
It addition, this contactor can also be operated under contrary state, i.e. switch is closed down, and nfc card is in running order, and during switch open, NFC is in off position.
By the duty of nfc card near NFC terminal time automatically start change into the most when needed by use people manually boot, and the duty at once closed after a procedure, the probability be so possible to prevent when making employment the not use nfc card stolen brush of nfc card, cracking.Therefore the present invention can significantly improve the safety in utilization of NFC product in the case of not increasing cost.It addition, the technical scheme that the present invention proposes, with other NFC technique safety approach almost without conflicting, in the middle of the existing and following any NFC safety approach that can be added to.
Being described in detail the specific embodiment of the present invention above, but the present invention is not restricted to particular embodiments described above, it is intended only as example.To those skilled in the art, any equivalent modifications and replacement are the most all among scope of the invention.Therefore, impartial conversion done without departing from the spirit and scope of the invention and amendment, all should contain within the scope of the invention.
Claims (4)
1. a NFC illegal on-off circuit, it is characterised in that including that aerial coil, chip circuit and contactor, described aerial coil and described chip circuit are interconnected to form operating circuit, described contactor is for controlling the on off state of described operating circuit.
NFC illegal on-off circuit the most according to claim 1, it is characterised in that described aerial coil, described contactor and described chip circuit are sequentially connected with.
NFC illegal on-off circuit the most according to claim 1, it is characterised in that described contactor is positioned at described chip circuit.
4. according to NFC illegal on-off circuit described in claim 1 or 2 or 3, it is characterised in that described contactor is regular tap, thin film switch or electrical switch, and described electrical switch includes touching electronic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510132719.5A CN106156826A (en) | 2015-03-25 | 2015-03-25 | A kind of NFC illegal on-off circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510132719.5A CN106156826A (en) | 2015-03-25 | 2015-03-25 | A kind of NFC illegal on-off circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106156826A true CN106156826A (en) | 2016-11-23 |
Family
ID=57339781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510132719.5A Pending CN106156826A (en) | 2015-03-25 | 2015-03-25 | A kind of NFC illegal on-off circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106156826A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109087088A (en) * | 2018-08-10 | 2018-12-25 | 深圳市新国都技术股份有限公司 | A kind of nfc card |
| CN111027657A (en) * | 2018-10-09 | 2020-04-17 | 葛兰菲安全有限公司 | Anti-counterfeiting tracing anti-theft label based on high-frequency NFC mechanism |
-
2015
- 2015-03-25 CN CN201510132719.5A patent/CN106156826A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109087088A (en) * | 2018-08-10 | 2018-12-25 | 深圳市新国都技术股份有限公司 | A kind of nfc card |
| CN111027657A (en) * | 2018-10-09 | 2020-04-17 | 葛兰菲安全有限公司 | Anti-counterfeiting tracing anti-theft label based on high-frequency NFC mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |
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| WD01 | Invention patent application deemed withdrawn after publication |