CN103532598A - Multifunctional near field communication integrated system and method - Google Patents
Multifunctional near field communication integrated system and method Download PDFInfo
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- CN103532598A CN103532598A CN201310470262.XA CN201310470262A CN103532598A CN 103532598 A CN103532598 A CN 103532598A CN 201310470262 A CN201310470262 A CN 201310470262A CN 103532598 A CN103532598 A CN 103532598A
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Abstract
The invention relates to a multifunctional near field communication integrated system and a multifunctional near field communication integrated method, which are applicable to near field communication equipment. The multifunctional near field communication integrated system comprises a USB (universal serial bus) encryption chip, an NFC (near field communication) master control chip and an RFID (radio frequency identification) chip; the USB encryption chip is connected with the NFC master control chip through an SPI (serial peripheral interface) control bus, and the NFC master control chip is communicated with the RFID chip through the RF (radio frequency) communication mode; the USB encryption chip is used for realizing the function of a card-issuing card reader; the NFC master control chip is used for realizing the communication type conversion, and the contact communication is converted into non-contact communication; the RFID chip is used for realizing the function of a non-contact card; the USB encryption chip is connected with a PC (personal computer) host through the USB interface, and the PC host carries out read-write authentication and data modification on the RFID chip through the USB encryption chip and the NFC master control chip. With the adoption of the multifunctional near field communication integrated system and the multifunctional near field communication integrated method, the number of cards and USB flash disks carried by users is reduced, the integrated system is convenient and feasible, can be used for issuing cards and also can be used as a card.
Description
Technical field
The present invention relates to the communications field, relate in particular to the integrated system and method for a kind of multifunctional near-field communication.
Background technology
NFC (near-field communication, Near Field Communication) is developed based on RFID and interconnection technique jointly by Philip, Nokia and Sony, technical characterstic be low in energy consumption, control simple, compatible RFID; NFC equipment can be used as read write line terminal and the data transmission link of equipment to equipment of contact type intelligent card, smart card, and NFC has adopted two-way identification and connection, can be for active and passive equipment; NFC, as novel radio transmission technology, is mainly used in the consumption electronic products such as mobile communication, stored value card, authentication.
RFID is as authentication label, a lot of product forms have been derived, but Core Feature is similar, complete the checking of legal identity, such as the pass, animal identification, logistics management, gate control system etc., is all by RF card reader hair fastener, unique write to card No. ID, in needs identity verification, by RF radio frequency, unique ID is beamed back to card reader, complete authentication.
NFC technology, RFID, USB safety product are now very ripe, flourish in field separately, but there is not the product that has this three specific character concurrently at present, therefore, the carry-on articles that people's trip is now carried is except comprising mobile phone, USB flash disk, U-KEY and IC-card etc., also need to carry a lot of things such as identity card, mass transit card, bank card, purchase card, so must search cautious article before going out loaded down with trivial detailsly, after going out, do not stop just can find from bag turning in a lot of things the article that need, people with thing many after easy frequent lost objects also.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of multifunctional near-field communication integrated system and method.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of multifunctional near-field communication integrated system, can be applicable to various near-field communication devices, and comprise USB encryption chip, NFC main control chip and RFID chip;
Described USB encryption chip is connected with NFC main control chip by SPI control bus, realizes the control to NFC main control chip; Described NFC main control chip carries out communication by RF communication modes and RFID chip;
Described USB encryption chip is for realizing the function of hair fastener card reader; Described NFC main control chip is used for realizing communication type conversion, the contact communication between USB encryption chip and NFC main control chip is converted to the contactless communication of NFC main control chip and RFID chip chamber; Described RFID chip is used for realizing non-contact card function;
When online, described USB encryption chip is connected with PC main frame by USB interface, and PC main frame is read and write authentication and data modification by USB encryption chip, NFC main control chip to RFID chip; During off-line, can be used as common non-contact card and use.
The invention has the beneficial effects as follows: the present invention can be applied to NFC near-field communication device, such as identity card, the pass, electronic charging, animal identification, electronic health record, wrecked search, logistics management, baggage sorting, gate control system etc., can reduce the quantity of the equipment such as card that user carries, USB flash disk, facilitate easy-to-use, this invention can, for hair fastener, also can be used as card and use; Also can be for the communication of USB interface safety encipher, such as USB KEY, safe U disc, e-book, copyright protection etc.; By USB interface, not only the function of USB key can be realized, the rewriting to data in RFID can also be completed, so both safe and reliable, also can guarantee that the information of USBkey and RFID is consistent; Equipment inserts after USB interface, can also realize the read-write to other RFID equipment, as bank card, thereby realizes the function of Non-contact Media Reader, completes on-line payment in ecommerce.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described USB encryption chip, also for realizing USBkey function.
Adopt the beneficial effect of above-mentioned further scheme to be: to realize the function of USBkey, can be used as the carrier of digital certificates and private key, in banking system, network ID authentication and tax revenue, all can apply.
Further, there are symmetry algorithm and asymmetric arithmetic in described USB encryption chip inside, and described symmetry algorithm is used for encrypting the data of high-speed bus transmission, and described asymmetric arithmetic is used for realizing authentication, digital certificates are issued.
Adopt the beneficial effect of above-mentioned further scheme to be: the use of cryptographic algorithm can guarantee that in chip external memory NAND Flash, data are not revealed.
Further, technique scheme also comprises NAND Flash, and it is connected with described USB encryption chip by NAND Flash control bus, realizes the effect of encrypted U disk.
Adopt the beneficial effect of above-mentioned further scheme to be: the function that encrypted U disk can compatible USBKEY, can also, as the carrier of large capacity movable storage, can protect the important informations such as personal data, security files and copyright simultaneously.
Further, described USB encryption chip is built-in with USB flash disk controller, for controlling NAND Flash.
Adopt the beneficial effect of above-mentioned further scheme to be: can realize the effective control to NAND Flash.
Further, described USB encryption chip ID and RFID chip id bind together.
Adopt the beneficial effect of above-mentioned further scheme to be: to make USBkey and RFID identity unified, be convenient to management and using.
Another technical scheme that the present invention solves the problems of the technologies described above is as follows, and a kind of multifunctional near-field communication integrated approach, comprises the steps:
Step 1: described USB encryption chip connects by SPI control bus and NFC main control chip;
Step 2: described NFC main control chip carries out communication by RF communication modes and RFID chip;
Step 3: when online, described USB encryption chip is connected with PC main frame by USB interface, PC main frame is read and write authentication and data modification by USB encryption chip, NFC main control chip to RFID chip;
Step 4: during off-line, RFID chip is used for realizing non-contact card function, can be used as common non-contact card and uses.
On the basis of technique scheme, the present invention can also do following improvement.
Further, technique scheme also comprises that described USB encryption chip connects by NAND Flash control bus and described NAND Flash, realizes the effect of encrypted U disk.
Accompanying drawing explanation
Fig. 1 is the integrated system architecture diagram of a kind of multifunctional near-field communication of the present invention;
Fig. 2-6 are the integrated components of system as directed structure chart of a kind of multifunctional near-field communication of the present invention;
Fig. 7 is the integrated method flow diagram of a kind of multifunctional near-field communication of the present invention.
In accompanying drawing, the list of parts of each label representative is as follows:
1, USB encryption chip, 2, NFC main control chip, 3, RFID chip, 4, NAND Flash.
Embodiment
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, a kind of multifunctional near-field communication integrated system, can be applicable to various near-field communication devices, comprises USB encryption chip 1, NFC main control chip 2 and RFID chip 3;
Described USB encryption chip 1 is connected with NFC main control chip 2 by SPI control bus, realizes the control to NFC main control chip 2; Described NFC main control chip 2 carries out communication by RF communication modes and RFID chip 3;
Described USB encryption chip 1 is for realizing the function of hair fastener card reader; Described NFC main control chip 2 is for realizing communication type conversion, the contact communication of 2 of USB encryption chip 1 and NFC main control chips is converted to the contactless communication of 3 of NFC main control chip 2 and RFID chips; Described RFID chip 3 is for realizing non-contact card function;
When online, described USB encryption chip 1 is connected with PC main frame by USB interface, and PC main frame is read and write authentication and data modification by USB encryption chip 1,2 pairs of RFID chips 3 of NFC main control chip; During off-line, can be used as common non-contact card and use.
Wherein, described USB encryption chip, also for realizing USBkey function.Realize the function of USBkey, can be used as the carrier of digital certificates and private key, in banking system, network ID authentication and tax revenue, all can apply.
There are symmetry algorithm and asymmetric arithmetic in described USB encryption chip inside, and described symmetry algorithm is used for encrypting the data of high-speed bus transmission, and described asymmetric arithmetic is used for realizing authentication, digital certificates are issued.The use of cryptographic algorithm can guarantee that in chip external memory NAND Flash, data are not revealed.
Technique scheme also comprises NAND Flash, and it is connected with described USB encryption chip by NAND Flash control bus, realizes the effect of encrypted U disk.Encrypted U disk can compatible USBKEY function, can also, as the carrier of large capacity movable storage, can protect the important informations such as personal data, security files and copyright simultaneously.
Described USB encryption chip is built-in with USB flash disk controller, for controlling NAND Flash, can realize the effective control to NAND Flash.
Described USB encryption chip ID and RFID chip id bind together.Make USBkey and RFID identity unified, be convenient to management and using, complete all current digital certificates and electronic labelling system function.
Figure 1 shows that the core that the present invention is integrated; main minute three parts; wherein USB encryption chip is connected with PC by usb bus; USB encryption chip inside has symmetry algorithm and asymmetric arithmetic; asymmetric arithmetic is used for doing the functions such as authentication, digital certificates distribution; symmetry algorithm is used for the data that encryption and decryption high-speed bus transmits, and can safeguard protection chip external memory data not revealed, and this function has retained the function of original USB KEY and safe U disc.
USB controls NFC chip by SPI control bus, and NFC chip can be realized the hair fastener of RFID and identification card, the function of contactless card reader namely, and main frame is controlled NFC by USB, can complete the data exchange of main frame and RFID or other NFC chips.
NFC can read and write authentication to being integrated in the RFID of internal system, and RFID can be used other non-connecing in card reader afterwards, completes stored value card, on and off dutyly registers, the function such as gate control system.
Because USB, NFC and RFID are in same system, so the data of RFID can be passed through USB interface, through USB encryption chip, NFC main control chip, complete modification, as RFID, supplement, change ID or other functions with money.
The present invention adopts USB encryption chip as main control chip, this chip can complete the complete function of USB KEY, chip connects NFC main control chip by universal serial bus SPI interface simultaneously, possesses hair fastener functions of card reader, NFC also has the function of analog card equipment simultaneously, if a RFID chip and NFC main control chip are encapsulated into the same card inside simultaneously, main frame just can pass through USB interface, through USB encryption chip, NFC main control chip, realizes read-write authentication and data modification to RFID.Under off-line situation, RFID chip is exactly a common non-contact card, completes the functions such as authentication, bankcard consumption by other card reader.The all right external NANDFLASH of USB encryption chip, as large capacity encrypted U disk.
With combination intuitively, describing the present invention can be the abundant function realizing:
1. can realize as shown in Figure 2, the function of all USBkey
By by USB interface communication, adopt the asymmetric arithmetics such as RSA, the identification verification function to USB KEY of main frame, the function of this application and USB KEY, identical.
2. can realize as shown in Figure 3, the function of safe U disc
This function, on the basis of USB flash disk function, has increased cryptographic algorithm, becomes a safety high speed encrypted U disk, communication or USB, adopt symmetry algorithm, and all NAND of writing Flash memories are all the data after encrypting, assurance USB flash disk is safe and reliable, even if lose, also can not cause and divulge a secret.
3. as shown in Figure 4, can realize the online contactless card reader of main frame and non-contact data communication function
USB encryption chip is connected with NFC main control chip by SPI control bus, can carry out data interaction with RFID equipment or NFC equipment, main frame can just can be realized hair fastener by USB encryption chip like this, because the communication speed of SPI is relatively very fast, USB is also high speed communication interface, so the data communication of president's time blocking USB, does not make hair fastener, Card Reader is all very quick.
4. as shown in Figure 5, can realize hair fastener and card function
Described hardware mechanisms, integrated the function of card reader and card, can realize the direct read/write of NFC to RFID, RFID also can be read by other card reader simultaneously, because USB encryption chip and RFID can realize identification verification function, so when USB encryption chip is write RFID by NFC, identical ID can be write to USB encryption chip inner, USB encryption chip and RFID have identical ID identification code like this, convenient in management, can realize the Secure Application platform that an ID verifies that each are different, this application is safer, more convenient.
5. as shown in Figure 6, can realize RFID all functions
During off-line state, RFID regards independent use as, at the frequency band of all 13.56Mhz or 125Khz, can use, covered the application of most of RFID, practicality is very strong, easy to carry, integrated simple, in life, work, study, amusement, can use this product.
NFC mobile phone, RFID, USB safety product has obtained consumer, the approval of electronics manufacturer and government department, no matter any scheme, not in short supply market shares, if but three is integrated into a system, can bring great convenience to people's life and safety, it is in life convenient when reducing consumer's belongings, to bring, go out and only need be with a card, just can realize small amount consumption, booking, trip, turnover office system, ecommerce, food and drink consumption etc. function, because NFC has initiatively and passive functions, thereby among a small circle, hair fastener voluntarily, the integrated system of USB and NFC is manager, also can be the person of being managed, this simple to operate, design with low cost is highly susceptible to using and promoting.
As shown in Figure 7, a kind of multifunctional near-field communication integrated approach, comprises the steps:
Step 1: described USB encryption chip connects by SPI control bus and NFC main control chip;
Step 2: described NFC main control chip carries out communication by RF communication modes and RFID chip;
Step 3: when online, described USB encryption chip is connected with PC main frame by USB interface, PC main frame is read and write authentication and data modification by USB encryption chip, NFC main control chip to RFID chip;
Step 4: during off-line, RFID chip is used for realizing non-contact card function, can be used as common non-contact card and uses.
In the present invention, because consideration speed is preferential, so control chip in USB encryption chip and NFC, adopted SPI interface, also can adopt other interfaces as I2C, ISO7816, UART, GPIO realize, used these interfaces also can be considered as the present invention and protect content.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a multifunctional near-field communication integrated system, can be applicable to the various near-field communication devices that meet 14443 agreements, it is characterized in that, comprises USB encryption chip, NFC main control chip and RFID chip;
Described USB encryption chip is connected with NFC main control chip by SPI control bus, realizes the control to NFC main control chip; Described NFC main control chip carries out communication by RF communication modes and RFID chip;
Described USB encryption chip is for realizing the function of hair fastener card reader; Described NFC main control chip is used for realizing communication type conversion, the contact communication between USB encryption chip and NFC main control chip is converted to the contactless communication of NFC main control chip and RFID chip chamber; Described RFID chip is used for realizing non-contact card function;
When online, described USB encryption chip is connected with PC main frame by USB interface, and PC main frame is read and write authentication and data modification by USB encryption chip, NFC main control chip to RFID chip; During off-line, can be used as common non-contact card and use.
2. a kind of multifunctional near-field communication integrated system according to claim 1, is characterized in that, described USB encryption chip, also for realizing USBkey function.
3. a kind of multifunctional near-field communication integrated system according to claim 1, it is characterized in that, there are symmetry algorithm and asymmetric arithmetic in described USB encryption chip inside, described symmetry algorithm is used for encrypting the data of high-speed bus transmission, and described asymmetric arithmetic is used for realizing authentication, digital certificates are issued.
4. a kind of multifunctional near-field communication integrated system according to claim 1, is characterized in that, also comprise NAND Flash, it is connected with described USB encryption chip by NAND Flash control bus, realizes the effect of encrypted U disk.
5. a kind of multifunctional near-field communication integrated system according to claim 1, is characterized in that, described USB encryption chip is built-in with USB flash disk controller, for controlling NAND Flash.
6. a kind of multifunctional near-field communication integrated system according to claim 1, is characterized in that, described USB encryption chip ID and RFID chip id bind together.
7. a multifunctional near-field communication integrated approach, is characterized in that, comprises the steps:
Step 1: described USB encryption chip connects by SPI control bus and NFC main control chip;
Step 2: described NFC main control chip carries out communication by RF communication modes and RFID chip;
Step 3: when online, described USB encryption chip is connected with PC main frame by USB interface, PC main frame is read and write authentication and data modification by USB encryption chip, NFC main control chip to RFID chip;
Step 4: during off-line, RFID chip is used for realizing non-contact card function, can be used as common non-contact card and uses.
8. a kind of multifunctional near-field communication integrated approach according to claim 7, is characterized in that, technique scheme also comprises that described USB encryption chip connects by NAND Flash control bus and described NAND Flash, realizes the effect of encrypted U disk.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017077140A1 (en) * | 2015-11-08 | 2017-05-11 | Spacecode | Object identification device, system, and method |
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| CN2627564Y (en) * | 2003-06-04 | 2004-07-21 | 武汉天喻信息产业股份有限公司 | U-key disk |
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| US10423872B2 (en) | 2015-11-08 | 2019-09-24 | Spacecode | Object identification device, system, and method |
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Application publication date: 20140122 |