CN215814216U - NFC card data storage device and data transmission system - Google Patents
NFC card data storage device and data transmission system Download PDFInfo
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- CN215814216U CN215814216U CN202120164599.8U CN202120164599U CN215814216U CN 215814216 U CN215814216 U CN 215814216U CN 202120164599 U CN202120164599 U CN 202120164599U CN 215814216 U CN215814216 U CN 215814216U
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- 238000013500 data storage Methods 0.000 title claims abstract description 40
- 230000005540 biological transmission Effects 0.000 title claims abstract description 13
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- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 15
- 239000000463 material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
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- 238000005336 cracking Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of near field communication, and particularly discloses a data storage device and a data transmission system of an NFC card. By adopting the technical scheme, the data are encrypted and stored through the cooperation of the units, the data are extracted when needed, and the NFC is used as a convenient carrier for encrypting and storing important information in decentralized application, so that the user experience is improved.
Description
Technical Field
The utility model belongs to the technical field of near field communication, and relates to an NFC card data storage device and a data transmission system, which can be used as a convenient carrier for encrypting and storing important information in block chain technology application.
Background
Near Field Communication (NFC) is a short-range high-frequency radio technology, which operates at a frequency of 13.56MHz within a distance of 20 cm and has three transmission speeds of 106 Kbit/s, 212 Kbit/s or 424 Kbit/s. NFC adopts two kinds of reading modes of initiative and passive, and NFC near field communication technique is integrated and evolved by non-contact Radio Frequency Identification (RFID) and interconnection and intercommunication technique, combines the function of induction type card reader, induction type card and point-to-point on single chip, can discern and data exchange with compatible equipment in the short distance.
The password of the existing mobile phone wallet APP is usually formed by combining English letters, numbers, symbols and the like, so that the password is complex and difficult to remember, and the password is recorded by adopting a picture and handwriting on a paper material, so that complex and long mnemonic words and keys need to be manually input, and the mobile phone wallet APP is inconvenient to operate, easy to lose and inconvenient to store.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an NFC card data storage device and a data transmission system, which can realize the storage of user data after encryption, ensure the safety of data storage, can be taken at any time and are convenient for users to use.
In order to achieve the purpose, the basic scheme of the utility model is as follows: an NFC card data storage device comprises a data receiving and sending unit, and a data encryption unit and a data storage unit which are respectively connected with the data receiving and sending unit;
the data receiving and sending unit receives data sent by the interactive equipment and transmits the received data to the data encryption unit;
the data encryption unit is used for encrypting the received data and transmitting the encrypted data to the data storage unit;
the data storage unit is used for storing encrypted data;
when the data receiving and sending unit is used, the data receiving and sending unit is used for transmitting the encrypted data stored in the data storage unit to the interactive equipment.
The working principle and the beneficial effects of the basic scheme are as follows: the interactive equipment can be connected with the data receiving and sending unit, when the interactive equipment sends data outwards, the data receiving unit can receive the data and transmit the data to the data encryption unit, and the data encryption unit can encrypt the received data, so that the data security is improved. The data storage after the encryption is in the data storage unit, and data storage is stable, and mutual equipment can draw the data after the encryption through data transceiver unit, and the random access does benefit to the use. In decentralized application (for example, decentralized transaction, decentralized wallet and other application scenes), NFC is used as a convenient carrier for encrypting and storing important information, so that anonymous records cannot be destroyed, forged and destroyed, brands can be helped to collect information of the whole life cycle of products, and user experience is improved.
Further, the data encryption unit adopts a symmetric encryption algorithm module.
The symmetric encryption algorithm has the advantages of high encryption and decryption speed, difficult cracking and safe use.
Further, the data receiving and transmitting unit is provided with an NFC label.
The NFC label can realize wireless communication, meets the requirement of data transmission of the data receiving and transmitting unit, and is safe and quick to use.
Further, the NFC tag adopts an RFID passive tag, the RFID passive tag comprises an RFID chip and an antenna, and the antenna is made of one of copper, aluminum and silver.
The RFID passive tag has strong anti-interference capability and high transmission efficiency and is beneficial to use.
Further, still include the shielding cutting ferrule that is used for placing the NFC card.
When the NFC card is not needed to be used, the NFC card is placed in the shielding sleeve, information transmitted to the NFC card data storage device from the outside is shielded, the NFC card data storage device is prevented from transmitting the information outwards, and the use safety of the NFC card is improved.
Further, the shielding cutting ferrule adopts a metal material capable of shielding signals.
The signal shielding is realized by utilizing the material characteristics.
The utility model also provides a data transmission system, which comprises an NFC card reader arranged on the interactive equipment and an NFC card data storage device;
when writing, the NFC card reader transmits user data to a data receiving and transmitting unit of the NFC card;
and when reading, the NFC card is close to the NFC card reader, and the NFC card reader receives the encrypted data.
And the NFC card reader is utilized to connect the interactive equipment with the NFC card data storage device, so that the information is smoothly transmitted.
Further, an encryption and decoding module is arranged in the NFC card reader and used for acquiring decoded user data.
And the encryption and decryption module is used for carrying out decryption operation on the encrypted data, so that the user data can be successfully extracted.
Drawings
FIG. 1 is a schematic flow chart of an NFC card data storage device of the present invention;
FIG. 2 is a schematic structural diagram of an NFC card data storage device of the present invention;
fig. 3 is a schematic structural diagram of a shielding card sleeve of the NFC card data storage device of the present invention.
Reference numerals in the drawings of the specification include: interaction equipment 1, NFC card reader 2, NFC card 3, shielding cutting ferrule 4.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and 2, the present invention discloses an NFC card data storage device, which includes a data transceiving unit, and a data encryption unit and a data storage unit respectively connected to the data transceiving unit.
The data receiving and sending unit receives data sent by the interactive device (such as a mobile phone terminal) 1 and transmits the received data to the data encryption unit, and the data receiving and sending unit is installed in the NFC card 3.
In this embodiment, the data transceiver is any data transceiver capable of implementing near field communication, and may be, but not limited to, an active tag, a passive tag, or a near field wireless communication module with any frequency. Preferably, a wireless communication module with the frequency of 13.56MHz is adopted, and the transmission distance of the wireless communication module with the frequency of 13.56MHz is proper and convenient to use. Such as a wireless communication module arranged based on a PN512 chip, the wireless communication module includes a microcontroller (e.g., AT89S51), a PN512 chip, a clock circuit (e.g., DS1202, etc.), a matching circuit, an interface, and other peripheral circuits, and the microcontroller controls the PN512 to read data of the interaction device 1.
In another preferred mode of this embodiment, the data transceiver unit is provided with an NFC tag, and the NFC tag is preferably an RFID passive tag. The RFID passive tag comprises an RFID chip and an antenna, the RFID chip is preferably but not limited to RF100, EM4033 and the like, the RFID chip is connected with the antenna, the antenna is connected with a capacitor to form a resonant circuit and used for receiving signals sent by the interactive device 1 or sending data to the interactive device 1, and the antenna is made of a metal material selected from copper, aluminum and silver.
The data encryption unit is used for encrypting the received data and transmitting the encrypted data to the data storage unit. The data encryption unit is preferably a symmetric encryption algorithm module, and the symmetric encryption algorithm module is preferably, but not limited to, a TF32A09 chip.
The data storage unit is used for storing encrypted data, and the data storage unit is preferably but not limited to an AT24C64 chip. When in use, the data transceiver unit is used for transmitting the encrypted data stored in the data storage unit to the interactive device 1.
The connection of the specific chip pins can be made by the prior art or by referring to the chip operation description, which is not described herein.
In a preferred mode of the present invention, as shown in fig. 3, the data storage device of the NFC card 3 further includes a shielding card sleeve 4 for placing the NFC card 3, the NFC card 3 can be safely placed in the shielding card sleeve 4 when not in use, and the shielding card sleeve 4 is made of a metal material capable of shielding signals, such as copper, aluminum, and the like.
The utility model also provides a data transmission system which comprises an NFC card reader 2 arranged on the interactive equipment 1 and the NFC card data storage device. The NFC card reader 3 and the NFC card reader 2 can be selected from an FSV95 series chip, an EM4094 chip and the like, the internal structure of the NFC card reader 2 comprises an interface area and a radio frequency area, and the radio frequency area is directly connected with a communication antenna.
During writing, the NFC card reader 2 can send a group of electromagnetic waves with fixed frequency outwards through the communication antenna, the NFC card 3 is close to the NFC card reader 2 (within about 5cm of the distance between the NFC card and the NFC card reader), the NFC card 3 enters the working range of the NFC card reader 2, and the antenna of the data receiving and sending unit of the NFC card 3 receives the electromagnetic waves sent by the NFC card reader 2, so that the NFC card 3 is activated. Then the NFC reader 2 modulates the user data onto a carrier wave, and sends the user data to the data transceiver unit of the NFC card 3 through communication.
When reading, the NFC card 3 is close to the NFC card reader 2, and the data receiving and transmitting unit on the NFC card 3 transmits the encrypted data to the NFC card reader 2 through the antenna. In addition, an encryption and decoding module is arranged in the NFC card reader 2, and a corresponding decoded secret key is arranged in the encryption and decoding module and used for acquiring decoded user data.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. An NFC card data storage device is characterized by comprising a data transceiving unit, a data encryption unit and a data storage unit, wherein the data encryption unit and the data storage unit are respectively connected with the data transceiving unit;
the data receiving and sending unit receives data sent by the interactive equipment and transmits the received data to the data encryption unit;
the data encryption unit is used for encrypting the received data and transmitting the encrypted data to the data storage unit;
the data storage unit is used for storing encrypted data;
when the data receiving and sending unit is used, the data receiving and sending unit is used for transmitting the encrypted data stored in the data storage unit to the interactive equipment;
the NFC card also comprises a shielding card sleeve used for placing the NFC card.
2. An NFC card data storage device according to claim 1, wherein said data encryption unit employs a symmetric encryption algorithm module.
3. The NFC-card data storage device according to claim 1, wherein the data transceiving unit is provided with an NFC tag.
4. The NFC card data storage device according to claim 3, wherein the NFC tag is an RFID passive tag, the RFID passive tag includes an RFID chip and an antenna, and the antenna is made of a metal material selected from one of copper, aluminum, and silver.
5. The NFC card data storage device of claim 1, wherein the shield sleeve is a metallic material that can shield signals.
6. A data transmission system, comprising an NFC card reader disposed on an interactive device, and an NFC card data storage device as claimed in any one of claims 1 to 5;
when writing, the NFC card reader transmits user data to a data receiving and transmitting unit of the NFC card;
and when reading, the NFC card is close to the NFC card reader, and the NFC card reader receives the encrypted data.
7. The data transmission system according to claim 6, wherein an encryption and decoding module is provided in the NFC card reader for acquiring the decoded user data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120164599.8U CN215814216U (en) | 2021-01-21 | 2021-01-21 | NFC card data storage device and data transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120164599.8U CN215814216U (en) | 2021-01-21 | 2021-01-21 | NFC card data storage device and data transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215814216U true CN215814216U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120164599.8U Expired - Fee Related CN215814216U (en) | 2021-01-21 | 2021-01-21 | NFC card data storage device and data transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215814216U (en) |
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2021
- 2021-01-21 CN CN202120164599.8U patent/CN215814216U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220211 |