CN106991352A - The data read-write method of NFC reader and NFC label - Google Patents

The data read-write method of NFC reader and NFC label Download PDF

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Publication number
CN106991352A
CN106991352A CN201710207738.9A CN201710207738A CN106991352A CN 106991352 A CN106991352 A CN 106991352A CN 201710207738 A CN201710207738 A CN 201710207738A CN 106991352 A CN106991352 A CN 106991352A
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data
nfc
ndef
compared
carrying
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CN106991352B (en
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楼鹏
王旬贵
张吉红
康泽华
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Zhuhai Geehy Semiconductor Co Ltd
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Apex Microelectronics Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
    • G06K19/0707—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement being capable of collecting energy from external energy sources, e.g. thermocouples, vibration, electromagnetic radiation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
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  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Computer Security & Cryptography (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Near-Field Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses the data read-write method of a kind of NFC reader and NFC label.Data management system is set in NFC label, the encapsulation that multiple NDEF recorded or performed the NDEF records of relatively large data is read by data management system, and multiple NDEF are recorded into parsing or non-volatile memory cells are write direct, realize the storage and transmission of relatively large data, and, data head is set in non-volatile memory cells, by in data head each file index information perform targetedly or partial document data reading or rewriting, rewrite, and, NFC label is read and write by the application program at NFC reader end, realize the reading and write operation of data in more flexible NFC label.

Description

The data read-write method of NFC reader and NFC label
This application claims enjoy in entitled " NFC label, NFC reader and the NFC label submitted on 04 01st, 2016 Data read-write method " Chinese patent application CN201610206809.9 priority, the entire disclosure of which is by drawing With being incorporated herein.
Technical field
The invention belongs to wireless communication field, it is related to a kind of NFC label for working in label and reader/writer mode, NFC and reads Write device and the data read-write method of NFC label.
Background technology
Near-field communication (Near Field Communication, abbreviation NFC), be one kind work in 13.56MHz (megahertz In frequency hereby), communication connection setup time was less than 1 second and communication distance is generally confined within the quick short distance within 10 centimetres High frequency wireless communication technology.It is currently based on NFC protocol specification NFCIP-1 (including the international standards of ISO/IEC 18092 and ECMA- 340 standards), the international standards of ISO/IEC 14443, the contactless smart card standard such as Japanese Industrial Standards (JIS) X 6319-4 determine The NFC device of justice may operate in reader/writer mode for NFC label, for the ad hoc mode between other NFC devices, 106kbps (thousand is supported for the NFC device in the snap gauge simulation models of other NFC readers, and based on different NFC standards Bits per second), the different message transmission rate such as 212kbps and 424kbps.Two kinds of communication patterns are supported between NFC device：It is logical Letter initiating equipment and target communication device all pass through power itself and the aggressive mode of alternate transport data (such as ad hoc mode)； Communication initiating equipment produces wireless signal and powered by electromagnetic field for target communication device, and target communication device passes through to existing Electromagnetic field is modulated to respond the Passive Mode (such as reader/writer mode and snap gauge simulation models) of communication initiating equipment.Generally in label and In reader/writer mode, NFC reader (mobile phone as supported NFC communication) is close to passive NFC label and produces wireless signal, NFC The antenna of label captures electric energy from the electromagnetic field of the wireless signal and powered for memory, and by the modulation to the electromagnetic field come The data that memory is stored are sent to NFC reader.Antenna and corresponding memory device are only needed due to passive NFC label and The characteristics of without additional battery, be simple to manufacture, with low cost and volume it is thin easy to carry, be now widely used for electronics label In card, anti-counterfeit recognition and electronic business card, the life given people brings great convenience.
At present, the agreement of NFC data communication is standardized by NFC forums (NFC Forum), and NFC forums define NFC Data interchange format (NFC Data Exchange Format, abbreviation NDEF) as between NFC device and NFC labels and The universal data format of NFC communication is carried out between NFC device.NDEF is using a NDEF message (NDEF Message) as once The data exchange structure of NFC communication, a NDEF message can be each comprising at least one NDEF records (NDEF Record) Individual NDEF recording carryings have data for communication as payload (NDEF Payload).When being communicated between NFC device, The data for needing to communicate are encapsulated into by the NFC generators (NFC generator) inside target communication device as payload In one or more NDEF record, and one or more NDEF records are sent to communication initiation as a NDEF message set Standby, the NDEF message received is parsed payload simultaneously by the NFC resolvers (NFC parser) inside communication initiating equipment NDEF is sent to be handled using (NDEF Application).
In existing NFC label, one NDEF of storage disappears in the form of single NDEF records in the memory of NFC label Breath, when NFC device reads NFC label as communication initiating equipment, NFC label directly regard the single NDEF records as one NDEF message is sent to NFC device, and single NDEF records are parsed payload simultaneously by the NFC resolvers inside NFC device NDEF applications are sent to be handled.
Due to only storing single NDEF records in existing NFC label, even if can be included in the single NDEF records many Individual NDEF subrecords are packaged as payload.But, due to the limitation of NFC communication speed, and target communication device and By data frame transfer between communication initiating equipment, single NDEF record datas amount crosses conference and causes the frame losing in NFC communication to pass Defeated to make communication error rate too high and bust this, the single NDEF record datas amount that current NFC label can be stored generally is limited System is within 8KB (kilobytes).So as to which current NFC label is can not to store and transmit tens of KB even several MB (Mbytes) Larger amount of data.
Moreover, be related to the storage of the data splitting of multiple files with transmission, generally using the plurality of file as effective Load is encapsulated into multiple NDEF subrecords, then the plurality of NDEF subrecords are encapsulated into single NDEF record storages to NFC marks In label., it is necessary to which the NDEF records in NFC label are all read and could be obtained after the parsing of NFC resolvers when reading file File destination, it is impossible to file therein selectively or is only partially read, it is necessary to which all files are encapsulated during write-in file Write into single NDEF records to NFC label, it is impossible to targetedly or only partially rewrite file therein, do not possess file The flexibility of read-write.
So as to which a kind of NFC label that can be stored and transmit relatively large data and one kind selectively read and write part The NFC label reading/writing method of data is desirable.
The content of the invention
In order to solve NFC label present in prior art can not store and transmit larger amount of data and reading and writing data not Flexibly the problem of, the invention provides the data read-write method of a kind of new NFC label, NFC reader and NFC label.
A kind of NFC reader, for being communicated with NFC label, the non-volatile memory cells of the NFC label include catalogue Area, data head and data field, the NFC reader include：
NFC antenna, for NFC communication；
NFC resolvers, for parsing NDEF records；
NFC generators, for data or instruction to be packaged into NDEF records；
Application program, for obtaining multiple files that the title, type, data field of NFC label are stored via NFC communication Filename, file type or document identifier code, document order code, and the starting point of multiple files that data field is stored At least one of location, data length or end address index information, and specify the NFC to mark according at least one index information The reading order of multiple files in label, and the corresponding processing for reading file is performed, or, according at least one index Information specifies the write-in type of the NFC label, and performs the transmission processing of corresponding write-in file.
Based on embodiments of the invention, there is above-mentioned application program user to visualize and user interface, can be by using The preferential reading at family instructs to specify the file reading order of multiple files in NFC label.
A kind of NFC reader be directed to NFC label multifile method for reading data, the NFC reader include NFC antenna, NFC resolvers and application program, the NFC label include NFC antenna, data management system and non-volatile memory cells, and this is non- Volatile memory cell includes directory area, data head and data field, and the multifile method for reading data includes：
The directory area and data head of the data management system loading non-volatile memory cell of NFC label, obtain NFC label Title, type, data field filename, file type or document identifier code, the document order code of the multiple files that are stored, with And initial address, data length or the end address of multiple files that data field is stored；
The text for multiple files that the data management system of NFC label is stored the title, type, data field of NFC label Part name, file type or document identifier code, document order code at least a portion Information encapsulation are to carry compared with small data quantity at least One NDEF information record, and sent by the NFC antenna modulated electromagnetic of NFC label to NFC reader；
The NFC antenna of NFC reader obtains at least one NDEF information record, via NFC resolvers parse after and will Filename, file type or document identifier code, the file for multiple files that the title of the NFC label, type, data field are stored Application program of at least a portion such as sequence code information transmission to NFC reader；
The application program of the NFC reader is according to the type of NFC label or according to order of the user to the file to be read The filename or file type and the reading order of multiple files of the selected determination file to be read, the NFC hairs of NFC reader Raw device by the reading order instruction of the filename or file type of the file to be read and multiple files be packaged into carrying compared with At least one NDEF instruction records of small data quantity, and sent by the NFC antenna of NFC reader by electromagnetic field to NFC label；
The NFC antenna demodulation electromagnetic field of NFC label obtains at least one NDEF instructions and records and send NFC label to Data management system；
The data management system of NFC label parses and obtained the text of the application program file to be read of NFC reader Part name or file type and the reading order of multiple files, and the initial address according to each file, data length or end ground Location information, in order reads each file from the data field of non-volatile memory cells；
Multiple NDEF data of the data management system of NFC label by each Document encapsulation of reading for carrying compared with small data quantity Record, and sent by the NFC antenna modulated electromagnetic of NFC label to NFC reader；
The NFC antenna of NFC reader obtains at least one NDEF data record, via NFC resolvers parse after and will These files send the application program of NFC reader to；
The application program of NFC reader performs processing to the file read.
A kind of NFC reader be directed to NFC label multifile method for reading data, the NFC reader include NFC antenna, NFC resolvers and application program, the NFC label include NFC antenna, data management system and non-volatile memory cells, and this is non- Volatile memory cell includes directory area, data head and data field, and the multifile method for reading data includes：
The directory area and data head of the data management system loading non-volatile memory cell of NFC label, obtain NFC label Title, type, data field filename, file type or document identifier code, the document order code of the multiple files that are stored, with And initial address, data length or the end address of multiple files that data field is stored；
The text for multiple files that the data management system of NFC label is stored the title, type, data field of NFC label At least a portion information such as part name, file type or document identifier code, document order code, and multiple texts that data field is stored At least a portion Information encapsulation such as initial address, data length or end address of part for carrying compared with small data quantity at least one NDEF information records, and sent by the NFC antenna modulated electromagnetic of NFC label to NFC reader；
The NFC antenna of NFC reader obtains at least one NDEF information record, via NFC resolvers parse after and will Filename, file type or document identifier code, the file for multiple files that the title of the NFC label, type, data field are stored Initial address, data length or the end address for multiple files that at least a portion such as sequence code information and data field are stored Application program etc. at least a portion information transmission to NFC reader；
The application program of the NFC reader is according to the type of NFC label or according to order of the user to the file to be read The filename or file type and the reading order of multiple files of the selected determination file to be read, and it is each according to what is read Initial address, data length or the end address information of file describe file and read instruction, and the NFC generators of NFC reader will Initial address, data length or the end address information of each file to be read and the reading order instruction encapsulation of multiple files Into carrying compared with small data quantity at least one NDEF instruct record, and by NFC reader NFC antenna by electromagnetic field send to NFC label；
The NFC antenna demodulation electromagnetic field of NFC label obtains at least one NDEF instructions and records and send NFC label to Data management system；
The data management system of NFC label parses and obtained rising for the application program file to be read of NFC reader Beginning address, data length or end address information and reading order, directly in order by each file from non-volatile memories list The data field of member is read.
Multiple NDEF data of the data management system of NFC label by each Document encapsulation of reading for carrying compared with small data quantity Record, and sent by the NFC antenna modulated electromagnetic of NFC label to NFC reader；
The NFC antenna of NFC reader obtains at least one NDEF data record, via NFC resolvers parse after and will These files send the application program of NFC reader to；
The application program of NFC reader performs processing to the file read.
A kind of NFC reader be directed to NFC label multifile data rewriting method, the NFC reader include NFC antenna, NFC resolvers and application program, the NFC label include NFC antenna, data management system and non-volatile memory cells, and this is non- Volatile memory cell includes directory area, data head and data field, and multifile data rewriting method includes：
The directory area and data head of the data management system loading non-volatile memory cell of NFC label, obtain NFC label Title, type, data field filename, file type or document identifier code, the document order code of the multiple files that are stored, with And initial address, data length or the end address of multiple files that data field is stored；
The text for multiple files that the data management system of NFC label is stored the title, type, data field of NFC label Part name, file type or document identifier code, document order code at least a portion Information encapsulation are to carry compared with small data quantity at least One NDEF information record, and sent by the NFC antenna modulated electromagnetic of NFC label to NFC reader；
The NFC antenna of NFC reader obtains at least one NDEF information record, via NFC resolvers parse after and will Filename, file type or document identifier code, the file for multiple files that the title of the NFC label, type, data field are stored Application program of at least a portion such as sequence code information transmission to NFC reader；
Filename, file type or file identification of the application program of the NFC reader according to multiple files of NFC label Code, document order code directly specify or according to user to the filename of the file to be rewritten of selected determination of the file to be rewritten or The rewriting order of file type and multiple files, the NFC generators of NFC reader by the filename of the file to be rewritten or File type, the rewriting order of multiple files and corresponding file rewrite data are packaged into carrying compared with least the one of small data quantity Individual NDEF instructions record, and sent by the NFC antenna of NFC reader by electromagnetic field to NFC label；
The NFC antenna demodulation electromagnetic field of NFC label obtains at least one NDEF instructions and records and send NFC label to Data management system；
The data management system of NFC label parses and obtained the text of the file to be rewritten of application program of NFC reader Part name or file type, the rewriting order of multiple files and corresponding file rewrite data, and according to the starting point of each file Location, data length or end address information, in order rewrite the file of the data field of non-volatile memory cells.
A kind of NFC reader be directed to NFC label multifile data rewrite method, the NFC reader include NFC antenna, NFC resolvers and application program, the NFC label include NFC antenna, data management system and non-volatile memory cells, and this is non- Volatile memory cell includes directory area, data head and data field, and multifile data rewrite method includes：
The directory area and data head of the data management system loading non-volatile memory cell of NFC label, obtain NFC label Title, type, data field filename, file type or document identifier code, the document order code of the multiple files that are stored, with And initial address, data length or the end address of multiple files that data field is stored；
The text for multiple files that the data management system of NFC label is stored the title, type, data field of NFC label Part name, file type or document identifier code, document order code at least a portion Information encapsulation are to carry compared with small data quantity at least One NDEF information record, and sent by the NFC antenna modulated electromagnetic of NFC label to NFC reader；
The NFC antenna of NFC reader obtains at least one NDEF information record, via NFC resolvers parse after and will Filename, file type or document identifier code, the file for multiple files that the title of the NFC label, type, data field are stored Application program of at least a portion such as sequence code information transmission to NFC reader；
Filename, file type or file identification of the application program of the NFC reader according to multiple files of NFC label Code, document order code directly specify or according to user to the filename of the selected determination file to be rewritten for the file to be rewritten or The rewriting order of file type and multiple files, the NFC generators of NFC reader by the filename of the file to be rewritten or File type, the rewriting order of multiple files and corresponding file rewrite data and are packaged into carrying compared with least the one of small data quantity Individual NDEF instructions record, and sent by the NFC antenna of NFC reader by electromagnetic field to NFC label；
The NFC antenna demodulation electromagnetic field of NFC label obtains at least one NDEF instructions and records and send NFC label to Data management system；
The data management system of NFC label parses and obtained the text of the application program file to be rewritten of NFC reader Part name or file type, the rewriting order of multiple files and corresponding file rewrite data, and according to the starting point of each file Location, data length or end address information, in order rewrite the file of the data field of non-volatile memory cells, lay equal stress on new life Cheng Xin filename, file type, document identifier code, initial address, data length or the end of document order code and file The index informations such as address, the new index information is write to data head.
Compared with prior art, NFC reader provided by the present invention and the reading/writing method for NFC label, in NFC Data management system is set in label, the NDEF that multiple NDEF recorded or performed relatively large data is read by data management system The encapsulation of record, and multiple NDEF are recorded into parsing or non-volatile memory cells are write direct, realize relatively large data Storage and transmission, also, data head is set in non-volatile memory cells, pass through the index information of each file in data head Perform targetedly or partial document data reading or rewriting, rewriting, and, pass through the application program at NFC reader end NFC label is read and write, the reading and write operation of data in more flexible NFC label is realized.
Other features and advantages of the present invention will be illustrated in the following description, and partly becomes from specification It is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by wanting in specification, right Structure specifically noted in book and accompanying drawing is asked to realize and obtain.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention Apply example to be provided commonly for explaining the present invention, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structural representation of NFC label provided by the present invention；
The structural representation for the NFC label that Fig. 2 is provided by the embodiment of the present invention one；
The structural representation for the NFC label that Fig. 3 is provided by the embodiment of the present invention two；
The data store organisation figure for the NFC label that Fig. 4 is provided by the embodiment of the present invention.
Embodiment
Below, technical scheme is described in detail in conjunction with the accompanying drawings and embodiments.Ordinary skill people Member with optimal implementation it should be understood that in order to simplify description process and clearly appear from technical scheme, be only subject to below Illustrate, as long as not constituting conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other, The technical scheme formed should be within protection scope of the present invention.
Fig. 1 is the structural representation of NFC label provided by the present invention.As shown in figure 1, NFC label 2 includes：For from Electromagnetic field captures electric energy and by demodulation or modulated electromagnetic receive and dispatch the NFC antenna 21 of communication, and be stored with multiple encapsulated The non-volatile memory cells 22 of NDEF records, and, NFC label 2 also includes data management system 23, for non-volatile Multiple NDEF records that memory cell 22 is stored are managed, read or stored, and non-volatile memory cells 22 are stored Multiple NDEF records read and the directly NDEF message that is sent by NFC antenna 21 or received NFC antenna 21 is direct Write to non-volatile memory cells 22.
Specifically, NFC antenna 21 can be the coil for encompassing circular or oval or other arbitrary shapes.It is non-volatile Property memory cell 22 can be using the nonvolatile memory such as EEPROM, EPROM, FLASH, ferroelectric memory or phase transition storage Part is realized, it would however also be possible to employ the volatile memory such as one or more registers, buffer and RAM and the above are at least one The combination of nonvolatile memory is realized.Data management system 23 can be the singlechip controller being separately provided, can also Multiple control electrical combinations that right and wrong volatile memory cell 23 is integrated in one, such as using the SOC being designed on wafer System.
For different storage classes, data management system 23 provided by the present invention can have a variety of implementations, under Structure, which elaborates, to be realized to NFC label 2 provided by the present invention with reference to accompanying drawing 2-3 in face.
Embodiment one
The structural representation for the NFC label that Fig. 2 is provided by the embodiment of the present invention one.As shown in Fig. 2 NFC label 2 is non- Volatile memory cell 22 store in the form of packaged multiple NDEF records larger amount of data (such as larger than 1MB's File), a part for the relatively large data stored is encapsulated into each NDEF records as payload, each The small amount of data of NDEF recording carryings (such as less than 8KB NDEF record) and it can be read by stable send to NFC of NFC antenna 21 Write in device, and, the data management system 23 of NFC label 2 includes NDEF message sending unit 231a and NDEF message and reads list First 232a, NDEF message sensing element 232a be used for according to packaged by the larger amount of data into NDEF record order one by one from The plurality of NDEF is recorded in non-volatile memory cells 22 and read, NDEF message sending units 231a is used to read NDEF message The orderly NDEF records for going out unit 232a readings are sent as at least one NDEF message by the modulated electromagnetic of NFC antenna 21 Go out.
Further, NDEF message sending units 231a is before the NDEF records of the first small amount of data of carrying are sent First send a NDEF for carrying start mark to record to represent that multiple NDEF record the beginning sent, and send this Last read retransmits the NDEF for carrying an end mark note after carrying the NDEF records of small amount of data Record to represent that this multiple NDEF records the completion sent；Or, first carrying is being sent by NDEF message sending units 231a During the NDEF records of small amount of data enterprising start of line mark, and last that this reads in transmission are recorded in the NDEF During the NDEF records for carrying small amount of data end mark is carried out on NDEF records.
Optionally, NDEF message sending units 231a and NDEF message sensing elements 232a, which can also merge, is set to individually The NDEF message that one control NDEF record reads and sent reads transmitting element, or uses equitant multiple control circuits Combination.
Optionally, NDEF message sensing element 232a can also will be the plurality of directly from non-volatile memory cells 22 NDEF records are read one by one, and recorded as packaged by NDEF message sending units 231a according to the larger amount of data into NDEF Order is sent the plurality of NDEF records as a NDEF message by the modulated electromagnetic of NFC antenna 21；Or, NDEF Message sensing element 232a is directly from non-volatile memory cells 22 by the plurality of NDEF records according to the larger amount of data It is packaged to be read one by one into the NDEF orders recorded, and the single NDEF of reading is recorded into work by NDEF message sending units 231a Sent one by one by the modulated electromagnetic of NFC antenna 21 for a NDEF message.
It is preferred that, non-volatile memory cells 22 according to packaged by the larger amount of data into NDEF record order one by one The plurality of NDEF records are stored, and the plurality of NDEF is sequentially read from initial address by NDEF message sensing element 232a and are recorded.
It should be noted that the non-volatile memory cells 22 for the NFC label 2 that the present embodiment is provided can only store one Multiple NDEF records of individual NDEF message, the NDEF records of multiple NDEF message can also be stored in order, as long as sending Difference can be achieved in the NDEF records that next NDEF message is retransmited after one or more NDEF records of one NDEF message The NDEF for receiving and parsing through processing in order to avoid belonging to different NDEF message of NDEF message records conflict.Based on this implementation The NFC label that example is provided, sets data management system so that NFC label possesses data managing capacity, energy in NFC label Enough record the multiple NDEF for being packaged with relatively large data reads and the plurality of using initiation of communication and end mark control one by one NDEF records can sustainedly and stably be sent so that NFC label can not only store larger amount of data, and can expire The limitation of the current NFC communication of foot sends larger amount of data.
Embodiment two
The structural representation for the NFC label that Fig. 3 is provided by the embodiment of the present invention two.The NFC provided with embodiment one Label is similar, and the non-volatile memory cells 22 of the NFC label 2 that the present embodiment is provided are same with packaged multiple The form of NDEF records stores larger amount of data.As shown in figure 3, the data management system 23 that the present embodiment is provided NDEF messaging unit 231b and NDEF message read-write cell 232b, send compared to the NDEF message that embodiment one is provided Unit 231a and NDEF message sensing element 232a, the function setting not only read with NDEF message, also with NDEF message The function setting of write-in.Because NDEF messaging unit 231b and NDEF message read-write cell 232b are by non-volatile memories list The postread principles of multiple NDEF that are stored of member 22 and embodiment one it is identical, will not be repeated here.
When NFC reader writes data to NFC label 2, the demodulation electromagnetic field of NFC antenna 21 of NFC label 2 obtains being connect The NDEF message of receipts, NDEF messaging units 231b sends this comprising multiple specific order of NDEF NDEF message recorded To NDEF message read-write cell 232b, NDEF message read-write cell 232b by the plurality of NDEF record write one by one in sequence to In non-volatile memory cells 22.
Further, what NDEF messaging units 231b received that NFC reader sends carries start mark NDEF records when represent the beginning that multiple NDEF record is sent, and then start to receive the first small amount of data of carrying NDEF is recorded, and represents that this multiple NDEF records the complete of transmission when receiving the NDEF for carrying an end mark record Into；Or, risen on the NDEF records of the small amount of data of first carrying for being sent to NDEF messaging units 231b Begin mark, and carries out end mark on last NDEF record for carrying small amount of data of this transmission, by NDEF The judgement that messaging unit 231b completion messages are received.Optionally, NDEF message read-write cell 232b can also be provided separately It is that the independent one NDEF message sensing element (such as Fig. 2 232a) for being used to control the reading of NDEF message and independent one are used to control The NDEF message writing units of NDEF message processed write-in, likewise, NDEF messaging units 231b can also be provided separately for The independent one NDEF message sending units (such as Fig. 2 231a) that are used to control NDEF message to send and it is independent one for controlling The NDEF message reception units of NDEF message sinks.
It should be noted that NDEF message read-write cell 232b write multiple NDEF records to non-volatile memory cells When 22, the sequencing that can be recorded according to NDEF writes one by one backward since the first address of non-volatile memory cells 22 to be deposited Storage, the set order that can also be stored according to non-volatile memory cells 22 is remembered regardless of the write-in NDEF of front and rear storage address Record, as long as when reading NDEF records according to sequentially reading into NDEF records packaged by the larger amount of data.
Optionally, NDEF messaging units 231b is it can also be provided that often receive a NDEF record just by the NDEF Record is sent to NDEF message read-write cell 232b, is write by NDEF message read-write cells 232b to non-volatile memory cells 22 In.
The NFC label provided based on the present embodiment, the data management system set in NFC label so that NFC label Possess the write capability of data management, the multiple NDEF for being packaged with relatively large data can be recorded and write and store one by one, made NFC label can not only meet the limitation of current NFC communication and send larger amount of data, and can be remembered with NDEF The form of record receives and stores larger amount of data.
It is relatively large that embodiment one and embodiment two provide a kind of storage in the form of packaged multiple NDEF records The NFC label of data, when the relatively large data include the combination of multiple files and need to be read respectively for different files When writing management, the invention provides a kind of NFC label data store organisation for being used to manage multiple files.
Embodiment three
The data store organisation schematic diagram for the NFC label that Fig. 4 is provided by the embodiment of the present invention three.Non-volatile memories list The operation program needed for being run for data storage management system, the firmware area instructed can be provided with member 22 and for storing NDEF records and the index list for data management related to these NDEF records including multiple file datas are deposited Storage area.As shown in figure 4, non-volatile memory cells 22 include：Firmware area 221, for needed for the operation of data storage management system The firmware such as operation program, instruction, and the storage firmware needed for the operation of other this NFC labels；Directory area 222, is arranged at number Before first 223 and data field 224, total length information, total length information, the data of data field 224 of data head 223 are described At least one information such as the NDEF record groups number (each file corresponds to one group of NDEF record) in area 224, for indexing respectively And identification data first 223 and data field 224, directory area can also include the title, type, function, produces day of this NFC label The letter such as phase, the date of formation of every group of NDEF record, the rewriting date of every group of NDEF record and corresponding identification code or check code Breath, the type of NFC label can be marked with identification code, the application strategy of the data for determining NFC label, NFC label Title could be arranged to change or can not change, for being recognized and being distinguished by the type of NFC label and the title of NFC label NFC label；Data head 223, the first address for respectively describing each group NDEF records according to each group NDEF storage orders recorded is believed Breath and length information, are carried out to this group of NDEF record respectively for the length by every group of NDEF initial addresses recorded and data Search and read and write, optionally, data head 223 can also describe the first address information and tail address letter of each group NDEF records respectively Breath, this group of NDEF record is indexed by every group of NDEF initial addresses recorded and end address, wherein, data head 223 also may be used With the filename of the entrained file of additional description each group NDEF records, the identification code of file type or each file, sequence code；Number According to area 224, according to the first address information and data length information of each group NDEF records described by data head 223, or, first ground Location information and tail address information, store each group NDEF record datas.
When the relatively large data that NFC label is stored are to be combined by different types of multiple files or same type of many During individual file composition, in the data store organisation that the present embodiment is provided, respectively by each Document encapsulation into one group of carrying There are the NDEF records compared with small data quantity, and this group of NDEF record is described and indexed, so as to realize to different file datas Read-write respectively and management.Wherein, the quantity that NDEF is recorded in every group of NDEF record can be one or more, can basis The size of file data is packaged into the carrying that can carry out stablizing NFC communication and determined compared with the ratio that the NDEF of small data quantity is recorded The number of packaged NDEF records.
Further, the information of directory area 222 and data head 223 be also be stored in the form of NDEF record groups it is non-volatile In property memory cell 22.It is preferred that, directory area 222 is encapsulated as first group of NDEF record, and data head 223 is encapsulated as second group of NDEF Each file is encapsulated as one group of NDEF record respectively in record, data field 224, when needing to read the data in NFC label, NFC label first sends the NDEF records of directory area 222 and data head 223, and instruction is read by data according to corresponding Part or all of NDEF records in area 224 are sent.Certainly, can also be by directory area 222 according to the flow setting of reading Multigroup NDEF records are encapsulated as respectively with the information of data head 223, for example, the total length of the data head 223 of directory area 222 is believed Breath, the total length information of data field 224, the NDEF record group numbers of data field 224 are encapsulated as first group of NDEF record, by directory area The title of 222 NFC label, type, function, date of manufacture, the date of formation of every group of NDEF record, every group of NDEF record change It is second group of NDEF record to write the Information encapsulation such as date and corresponding identification code or check code, is read for meeting specific part Take demand.Optionally, the total length information of data head 223 and the total length information of data field 224, can also be respectively in respective area Original position be individually described, for example, 2 bytes describe the total length of directory area before directory area, in data head Preceding 2 byte describes the total length of data head；Moreover, directory area 222 can also can also be merged into individually with data head 223 NDEF record groups number, filename and each file of one information area, the information for describing this NFC label, and data field Initial address, data length or the end address of corresponding NDEF record groups.
When the NFC antenna of NFC label captures electric energy from electromagnetic field, data management system and non-volatile memory cells are obtained Required electric energy must be run, data management system performs number since the firmware area load operating program of non-volatile memory cells According to reading or the management role such as write-in, wherein, data management system preferentially read non-volatile memory cells directory area and The NDEF record groups of data head, and these information are sent, the information for recognizing NFC label, and every group of index Initial address, data length or the end address of NDEF records.At least one set NDEF is recorded in receiving to data field 224 During read-write requests, the data management system initial address corresponding according to this group of NDEF record and data length/end address are held Row reads or rewritten, or, when the read-write requests for receiving the data to a certain initial address and data length, data management System points to the initial address and the data to defined data length perform and read or rewrite.
It should be noted that directory area and data head are preferably stored in before data field by the present embodiment, optionally, also may be used So that directory area or data head are stored in into other addresses or with other specific sequential storages, if preferentially read this directory area and The index information of data head simultaneously carrys out the purpose that each group NDEF records in index data area belong to the present invention with this.
It should be noted that be not limited, the file corresponding to every group of NDEF records described by the present embodiment Can be the data stored in the form of NDEF is recorded, likewise, each file described by the present embodiment can be independent class The single file of type can also be the aggregate of multiple files, and the compressed package of such as file can also be one of single file Point, one in such as multiple compressed packages.
The data store organisation of the NFC label provided based on the present embodiment, each file that can be described according to data head It is packaged into every group of NDEF record initial address, length information or initial address, end address individually index each text Part and its NDEF records, and the read-write of file targetedly or is only partially performed, provided for the multifile data of NFC label More flexible read-write mode.
Example IV
When NFC label provided by the present invention and NFC reader, which are worked in, to be communicated in label and reader/writer mode, in order to The reading or write-in of the NDEF records of NFC label provided by the present invention are preferably performed, a kind of NFC is present embodiments provided and reads Device is write, is provided with the NFC reader for the NFC antenna of NFC communication and for parsing the NFC that NDEF is recorded in NDEF message Resolver, for by data or instruction be packaged into NDEF record NFC generators, wherein, be also equipped with the NFC reader to Few one can record the application program (Application, abbreviation APP) that entrained data are handled to NDEF, should NDEF applications (i.e. the application program) be used for via the NFC communication acquisition title of NFC label, type, data field stored it is many Filename, file type or document identifier code, the document order code of the entrained file of group NDEF records, and data field are deposited At least one of initial address, data length or the end address of multigroup NDEF records of storage index information, and according to this extremely A kind of few index information specifies the reading number and reading order that multigroup NDEF in the NFC label is recorded, and performs corresponding NDEF it is postread processing operation, or, the write-in type of the NFC label is specified according at least one index information, And perform the transmission processing of corresponding NDEF records write-in.
Optionally, at least one application program of NFC reader is by obtaining the type of NFC label, and is marked according to the NFC The type of label directly specifies the reading order of multigroup NDEF records in NFC label, for example, for different types of NFC label point The preferential reading order rule of different NDEF record groups is not set, or, optionally, at least one of NFC reader applies journey Sequence has the operation interface of user's visualization and user mutual, can instruct to specify in NFC label by the preferential reading of user The reading order of multigroup NDEF records corresponding to multiple files, for example, the NFC reader can be a support NFC communication Mobile phone, the application program can be a application APP in mobile phone, this using APP by obtain the NDEF in NFC label note The filename or file type of the entrained file of record are simultaneously shown to user in visualized operation interface, are clicked on by user or are selected The fixed corresponding file preferentially read, meanwhile, it can also be selected to need what is read by user when All Files need not be read File number, so as to specify the reading of corresponding NDEF record groups.
Further, at least one application program of the NFC reader is by obtaining title, the type or many of NFC label Group NDEF records filename, file type or the document identifier code of entrained file to determine the reading group of each group NDEF records Number and order, and the initial address, data length or the end address information that are recorded according to each group NDEF directly specify NFC label Data management system reads NDEF records according to each initial address and corresponding data length or end address.Further , at least one application program of the NFC reader is by directly transmitting the initial address for writing NDEF record groups, data length Or end address information and corresponding write-in NDEF are recorded and are specified the data management system of NFC label to come according to initial address The rewriting of NDEF records is performed, or, recorded by directly transmitting the NDEF of directory area, data head and data field of write-in, And directly performed by the data management system of NFC label from first address and perform rewriting.
The NFC reader provided based on example IV, for the multifile reading and writing data of NFC reader and NFC label There can be following several implementation methods.
Embodiment five
The data for realizing the NFC label that structure and embodiment three are provided of the NFC label provided based on embodiment one The NDEF notes for being packaged with multiple files are store in storage organization, and the NFC reader that example IV is provided, NFC label Record group, and corresponding directory area and data head are provided with before record group, NFC reader obtains directory area and data head and specified The multifile method for reading data of the NFC label NDEF record groups to be read can include below scheme：
Preparation process：NFC reader and NFC label close to and set up NFC communication, the NFC antenna of NFC label is read from NFC Write and electric energy is captured in the electromagnetic field that device is launched, the data management system and non-volatile memory cells of NFC label are started Electric energy needed for operation, data management system brings into operation from the firmware area load operating program of non-volatile memory cells；
Step 501：The directory area of the data management system loading non-volatile memory cell of NFC label and data head NDEF record groups, and sent by the NFC antenna modulated electromagnetic of NFC label to NFC reader；
Step 502：The NFC antenna of NFC reader obtains the NDEF records of the directory area and data head, is parsed via NFC The multigroup NDEF after device parsing and stored the title, type, data field of the NFC label records the file of entrained file Multiple files that at least a portion information and the data field such as name, file type or document identifier code, document order code are stored The application program of at least a portion information transmission to NFC reader such as initial address, data length or end address；
Step 503：The application program of the NFC reader is according to the type of NFC label or according to user to the text to be read The selected filename or file type and the reading order of multiple files for determining the file to be read of the order of part, and according to will Initial address, data length or the end address information of file entrained by each group NDEF records of reading describe NDEF record groups Read instruction, the NFC generators of NFC reader are by initial address, data length or the knot of each group NDEF to be read records The reading order instruction of beam address information and each group NDEF records is packaged into carrying and referred to compared with least one NDEF of small data quantity Order record, and sent by the NFC antenna of NFC reader by electromagnetic field to NFC label；
Step 504：The NFC antenna demodulation electromagnetic field of NFC label obtains at least one NDEF instructions and records and send to The data management system of NFC label；
Step 505：The data management system of NFC label parses and obtains what the application program of NFC reader to be read Initial address, data length or the end address information and reading order of NDEF record groups, directly in order by each group NDEF Record and read from the data field of non-volatile memory cells, and sent by the NFC antenna modulated electromagnetic of NFC label to NFC readings Write device；
Step 506：The NFC antenna of NFC reader obtains at least one NDEF data record, via NFC resolver solutions Send the application program of NFC reader after analysis and by these files to；
Step 507：The application program of NFC reader performs processing to the file read.
Optionally, when user specifies or selectes multiple files and its corresponding reading order, the application journey of NFC reader Sequence can not also by packaged by the plurality of file into the reading orders of NDEF record groups send to NFC label, but only send The read requests (initial address of NDEF records and length information/end address) of reading order most preceding NDEF record groups, and Retransmited after the completion of this group of NDEF record is read next NDEF record groups in reading order read requests (NDEF records Initial address and length information/end address), so until having read all files to be read, terminate NFC communication.
Optionally, when whole file need not be read, the application program of NFC reader can by packaged by file into The initial address positioning of NDEF record groups read from the beginning of file, and to be read by the length information to be read positioning File size, or, when having read a part for single file, the application program of NFC reader can be by fixed Position needs the initial address (centre position of whole file) read, and controls what is read by the length information to be read Data volume.
The NFC reader and the method for reading data of NFC label provided based on the present embodiment, NFC reader passes through mesh Record the index that area and data head obtain multiple files of NFC label, so specify the file to be read packaged into NDEF notes The reading address of record group and reading order, or there is provided more flexible according to the reading for needing a part of data of specified file NFC label file data reading mechanism.
Embodiment six
The data for realizing the NFC label that structure and embodiment three are provided of the NFC label provided based on embodiment two The NDEF notes for being packaged with multiple files are store in storage organization, and the NFC reader that example IV is provided, NFC label Record group, and corresponding directory area and data head are provided with before NDEF record groups, NFC reader acquisition directory area and data head are simultaneously Below scheme can be included by specifying the multifile data rewriting method of the NFC label at least one set of NDEF to be rewritten records：
Preparation process：NFC reader and NFC label close to and set up NFC communication, the NFC antenna of NFC label is read from NFC Write and electric energy is captured in the electromagnetic field that device is launched, the data management system and non-volatile memory cells of NFC label are started Electric energy needed for operation, data management system brings into operation from the firmware area load operating program of non-volatile memory cells；
Step 601：The directory area of the data management system loading non-volatile memory cell of NFC label and data head NDEF record groups, and sent by NFC antenna modulated electromagnetic to NFC reader；
Step 602：The NFC antenna of NFC reader obtains the NDEF records of the directory area and data head, is parsed via NFC The multigroup NDEF after device parsing and stored the title, type, data field of the NFC label records the file of entrained file Multiple files that at least a portion information and the data field such as name, file type or document identifier code, document order code are stored The application program of at least a portion information transmission to NFC reader such as initial address, data length or end address；
Step 603：The application program of the NFC reader according to the filename of multiple files of NFC label, file type or Document identifier code, document order code are directly specified or according to user to the file to be rewritten of selected determination of the file to be rewritten The rewriting order of filename or file type and multiple files, and the file entrained according to each group NDEF to be rewritten records Initial address, data length or end address information NDEF record group write-over instructions, the NFC generators of NFC reader are described The rewriting of the initial address of the file to be rewritten, data length or end address information, multiple files is sequentially and corresponding NDEF record rewrite data be packaged into carrying compared with small data quantity at least one NDEF instruction record, data field NDEF record Group, and sent by the NFC antenna of NFC reader by electromagnetic field to NFC label；
Step 604：The NFC antenna demodulation electromagnetic field of NFC label obtains at least one NDEF instructions and records and send to The data management system of NFC label；
Step 605：The data management system of NFC label parses and obtains what the application program of NFC reader to be rewritten Initial address, data length or the end address information of file, the rewriting order of multiple files and corresponding NDEF records change Data are write, directly the NDEF of the data field of non-volatile memory cells is recorded in order and rewritten.
Optionally, when user specifies or selectes multiple files and its corresponding rewriting order, the application journey of NFC reader Sequence can not also by packaged by the plurality of file into the rewriting orders of NDEF record groups send to NFC label, but only send Rewriting order most preceding NDEF record groups overwrite request (initial address of NDEF records and length information/end address and Corresponding rewrite data), and next NDEF record groups in rewriting order is retransmited after the completion of this group of NDEF record is rewritten Overwrite request (initial address of NDEF records and length information/end address and corresponding rewrite data), so until changing All files to be rewritten are write, terminate NFC communication.
Optionally, when whole file need not be rewritten, the application program of NFC reader can by packaged by file into The initial address positioning of NDEF record groups rewritten from the beginning of file, and to be rewritten by the positioning of the length information to be rewritten File size, or, when needing to rewrite from the centre position of file, the application program of NFC reader can pass through positioning The initial address (centre position of whole file) rewritten is needed, and the number to be communicated is controlled by the length information to be rewritten According to amount.
Optionally, the application program of NFC reader send the file to be rewritten packaged by into NDEF record groups rise Beginning address, data length or during end address information, will can also accordingly be set as the independent of at least one NDEF record group The write-in type of rewriting is sent to NFC label.
The NFC reader and the data rewriting method of NFC label provided based on the present embodiment, NFC reader passes through mesh Record the index that area and data head obtain multiple files of NFC label, so specify the file to be rewritten packaged into NDEF notes The readdressing of record group and rewriting order, or there is provided more flexible according to the rewriting for needing a part of data of specified file NFC label file data rewrite mechanism.
Embodiment seven
The data for realizing the NFC label that structure and embodiment three are provided of the NFC label provided based on embodiment two Storage organization, and the NFC reader that example IV is provided, NFC reader specify NFC label to re-write all data Multifile data, which re-write method, can include below scheme：
Preparation process：NFC reader and NFC label close to and set up NFC communication, the NFC antenna of NFC label is read from NFC Write and electric energy is captured in the electromagnetic field that device is launched, the data management system and non-volatile memory cells of NFC label are started Electric energy needed for operation, data management system brings into operation from the firmware area load operating program of non-volatile memory cells；
Step 701：The application program of NFC reader is according to the selected determination text to be rewritten of the user to the file to be rewritten The rewriting order of the filename or file type of part and multiple files, and initial address according to each file to be rewritten, number Rising for new filename, file type, document identifier code, document order code and file is generated according to length or end address information Beginning address, the index information such as data length or end address, the text for each file that the NFC generators of NFC reader will be rewritten Part name or file type, initial address, data length or end address information, the rewriting order of multiple files, corresponding file Rewrite data and corresponding new index information be packaged into respectively carrying compared with small data quantity at least one NDEF instructions record, The NDEF record groups of the NDEF record groups of directory area, the NDEF record groups of data head and data field, and by the NFC of NFC reader Antenna is sent to NFC label by electromagnetic field；
Step 702：The data management system of NFC label parses and obtains what the application program of NFC reader to be rewritten Instruction, directly writes the index information of the new directory area and data head to directory area and data head, and in order will be non-easy The NDEF records of the data field of the property lost memory cell are rewritten.
The NFC reader and the data rewrite method of NFC label provided based on the present embodiment, NFC reader can be direct Filename, file type or the file address to be rewritten and new index information are specified, so as to straight at NFC reader end Connecing rewrite operation of the control to NFC label, there is provided more flexible NFC label file data writing mechanism.
Although it should be noted that the embodiment of the present invention states the skill of the present invention using NFC label in an optimal manner Art thinking, NFC label provided by the present invention is also not limited in portable nfc card piece, and NFC label can also be with attachment Or integrated mode forms the NFC memory units with fixing equipment or large scale equipment, being such as attached on exhibition platform, is attached to electricity NFC on refrigerator or Self-help vending machine reads part, the NFC posters of Pasting to wall, likewise, NFC label can also be with Other shapes or structure are packed, and the NFC being such as machined in collar differentiates label, are attached to the NFC checkings in wine product Part, all should as long as applying relatively large data storage provided by the present invention, reading and wiring method in NFC memory units When the scope for belonging to the present invention.
Although it should be noted that generally can just capture NFC label work by the electromagnetic field of NFC communication in NFC label Electric energy needed for making, optionally, can also be to NFC label attached battery or other equipment powered, for supplying electricity to NFC marks The work of the data management system of label, it does not influence the realization of the technology of the present invention thinking equally.
Obviously, the technical scheme provided using the embodiment of the present invention, sets data management system in NFC label, leads to Cross data management system and read multiple NDEF records, and multiple NDEF records are write direct into non-volatile memory cells, it is real The storage and transmission of existing relatively large data, also, data head is set in non-volatile memory cells, pass through each in data head The index information of file perform targetedly or partial document it is packaged into NDEF records reading or rewriting, rewriting, with And, NFC label is read and write by the application program at NFC reader end, realizes the reading of data in more flexible NFC label with writing Enter operation.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme.

Claims (23)

1. a kind of NFC reader, for being communicated with NFC label,
The non-volatile memory cells of the NFC label are deposited in the form of NDEF records of multigroup carrying compared with the data of small data quantity The data of larger data amount are stored up, the data of the larger data amount include multiple files, and each file is packaged into respectively The NDEF records of the data compared with small data quantity are carried described in one group,
The non-volatile memory cells include data field, data head, directory area,
The data field stores NDEF record of the multigroup carrying compared with the data of small data quantity in order,
The data head describes the starting for the NDEF records that the data compared with small data quantity are carried described in every group of the data field Address,
The directory area describes the total data length of the data head, the total data length of the data field, and the NFC The title of label, type, more than function at least one information,
The NFC reader includes：
NFC antenna, for carrying out NFC communication with the NFC label；
NFC resolvers, remember for parsing the carrying received by the NFC antenna compared with the NDEF of the data of small data quantity Record；
NFC generators, the carrying is packaged into compared with small data quantity for the data or instruction to be sent the NFC reader The NDEF records of data；
Application program, in the NFC reader, directory area, number for obtaining the NFC label via NFC antenna Specify many in the NFC label according at least one index information described by head, and according at least one index information Reading number and reading order of the group carrying compared with the NDEF records of the data of small data quantity.
2. NFC reader as claimed in claim 1, it is characterised in that：
The application program obtains the type of the NFC label, and specifies the NFC label according to the type of the NFC label In multigroup carrying compared with the data of small data quantity NDEF record reading order.
3. NFC reader as claimed in claim 1, it is characterised in that：
The data head also describes the file carried described in each group entrained by the NDEF records of the data compared with small data quantity Filename, file type or identification code, more than sequence code at least one information,
The identification code is used for the class for the file for marking the carrying entrained compared with the NDEF records of the data of small data quantity Type,
The sequence code is used for the file for marking the NDEF for carrying the data compared with small data quantity described in each group records entrained Reading order.
4. NFC reader as claimed in claim 3, it is characterised in that：
The application program has the operation interface of user's visualization and user mutual, and the application program is used to obtain described The NDEF that the data compared with small data quantity are carried described in each group of NFC label records filename, the file of the entrained file Type, and the filename of the file, file type are shown to user in visualized operation interface,
At least one described file to be read that the application program is additionally operable to select according to user is specified in the NFC label The Document encapsulation to be read into reading of the carrying compared with the NDEF record groups of the data of small data quantity.
5. NFC reader as claimed in claim 3, it is characterised in that：
The application program specifies multigroup carrying in the NFC label compared with the data of small data quantity according to the sequence code The reading order of NDEF records.
6. the NFC reader as described in claim any one of 1-5, it is characterised in that：
Starting point of the application program according to the NDEF records of the data carried described in be read every group compared with small data quantity Directly specify the reading address of the NFC label in location.
7. NFC reader as claimed in claim 1, it is characterised in that：
The application program is additionally operable to specify the carrying of the NFC label compared with decimal according at least one index information According to the write-in of the NDEF records of the data of amount.
8. NFC reader as claimed in claim 7, it is characterised in that：
Initial address of the application program according to the carrying to be rewritten compared with the NDEF record groups of the data of small data quantity Directly specify the readdressing of the NFC label.
9. NFC reader as claimed in claim 7, it is characterised in that：
The application program is by the number of the larger data amount of the new directory area, the data head and the data field Remember according to sending to the NFC generators and being packaged into the carrying by the NFC generators compared with the NDEF of the data of small data quantity Record, specifies the NFC label to perform rewriting from first address.
10. NFC label as claimed in claim 1, it is characterised in that：
The carrying is recorded as to be recorded by the stable NDEF sent of NFC antenna compared with the NDEF of the data of small data quantity.
11. NFC label as claimed in claim 1, it is characterised in that：
The data volume of the data of the larger data amount, which has exceeded, to be recorded by the stable single NDEF sent of NFC antenna Payload can carry the data volume of data.
12. a kind of NFC reader is to the multifile method for reading data of NFC label,
The NFC reader includes NFC antenna, NFC resolvers and application program,
The NFC label includes NFC antenna, data management system and non-volatile memory cells, the non-volatile memories list Member includes directory area, data head and data field, and the data field is with multigroup carrying compared with the NDEF records of the data of small data quantity Form stores the data of larger data amount, and the data of the larger data amount include multiple files, each file difference The NDEF records that the data compared with small data quantity are carried described in one group are packaged into, the data head describes every group of the data field The carrying is compared with the initial address of the NDEF records of the data of small data quantity, and the directory area describes the sum of the data head According to more than the title, type, function of length, the total data length of the data field, and the NFC label at least one letter Breath,
The multifile method for reading data includes：
The data management system of the NFC label loads the directory area and the data head of the non-volatile memory cells The carrying being packaged into compared with the data of small data quantity NDEF record groups, and by the NFC antenna modulated electromagnetic of the NFC label Field is sent to the NFC reader；
The carrying that the NFC antenna acquisition directory area of the NFC reader and the data head are packaged into is compared with small data The NDEF record groups of the data of amount, the directory area and the data head are sent to institute after being parsed via the NFC resolvers State the application program of NFC reader；
The application program of the NFC reader is according at least one index information described by the directory area and the data head It is determined that the file and the reading order of multiple files to be read, and according to the Document encapsulation to be read into the carrying it is smaller The initial address of the NDEF records of the data of data volume describes the carrying and read compared with the NDEF record groups of the data of small data quantity Instruction, the NDEF record groups of the NFC generators of the NFC reader by the carrying to be read compared with the data of small data quantity Initial address instruction be packaged at least one carrying and instruct record compared with NDEF of the data of small data quantity, and read by the NFC The NFC antenna for writing device is sent to the NFC label by electromagnetic field；
The NFC antenna demodulation electromagnetic field of the NFC label obtains NDEF of at least one the described carrying compared with the data of small data quantity Instruction records and sends the data management system of the NFC label to；
It is described that the data management system of the NFC label parses and obtains that the application program of the NFC reader to be read The initial address of the NDEF record groups of data compared with small data quantity is carried, data compared with small data quantity will be carried described in each group NDEF is recorded to be read from the data field of the non-volatile memory cells, and by the NFC antenna modulated electromagnetic of the NFC label Send to the NFC reader；
The NFC antenna of the NFC reader obtains NDEF record group of the carrying compared with the data of small data quantity, via described Sent to after the parsing of NFC resolvers and by the carrying compared with the file packaged by the NDEF record groups of the data of small data quantity described The application program of NFC reader；
The application program of the NFC reader performs processing to the file read.
13. multifile method for reading data as claimed in claim 12, it is characterised in that：
The application program of the NFC reader obtains the type of the NFC label, and is determined according to the type of the NFC label The file and the reading order of multiple files to be read.
14. multifile method for reading data as claimed in claim 12, it is characterised in that：
The data head also describes the file carried described in each group entrained by the NDEF records of the data compared with small data quantity Filename, file type or identification code more than at least one information, the identification code is used to mark the carrying compared with small data The type of the file entrained by the NDEF records of the data of amount,
The application program of the NFC reader is used to obtain the NDEF for carrying the data compared with small data quantity described in each group records Filename, file type or the identification code of the entrained file, and according to visualization of the user by the application program At least one selected described filename of interface, file type or identification code determine the reading for the file and multiple files to be read Take order.
15. multifile method for reading data as claimed in claim 12, it is characterised in that：
The data head also describes the file carried described in each group entrained by the NDEF records of the data compared with small data quantity Sequence code, the sequence code be used to marking the NDEF that the data compared with small data quantity are carried described in each group records it is entrained described in The reading order of file,
The application program determines the reading order for the multiple files to be read according to the sequence code.
16. multifile method for reading data as claimed in claim 12, it is characterised in that：
The application program of the NFC reader is according at least one index information described by the directory area and the data head It is determined that the file and the reading order of multiple files to be read, and according to the Document encapsulation to be read into the carrying it is smaller The initial address of the NDEF records of the data of data volume describes the carrying and read compared with the NDEF record groups of the data of small data quantity Instruction, it is described read instruction include the carrying to be read compared with the NDEF record groups of the data of small data quantity initial address with And multigroup carrying, compared with the reading order of the NDEF records of the data of small data quantity, the NFC generators of the NFC reader will The reading instruction is packaged at least one carrying and instructs record compared with NDEF of the data of small data quantity, and is read and write by the NFC The NFC antenna of device is sent to the NFC label by electromagnetic field；
It is described that the data management system of the NFC label parses and obtains that the application program of the NFC reader to be read Carrying is held compared with the initial address and reading order of the NDEF record groups of the data of small data quantity as described in reading order by each group The NDEF records for carrying the data compared with small data quantity are read from the data field of the non-volatile memory cells.
17. multifile method for reading data as claimed in claim 12, it is characterised in that：
The application program of the NFC reader is according at least one index information described by the directory area and the data head It is determined that the file and the reading order of multiple files to be read, and according to the Document encapsulation to be read into the carrying it is smaller The initial address of the NDEF records of the data of data volume describes to carry compared with small data quantity described in every group one by one according to reading order The reading instruction of the NDEF records of data, each reading instruction includes the one group of carrying to be read compared with small data quantity Each reading instruction is packaged into by the initial address of the NDEF records of data, the NFC generators of the NFC reader respectively At least one carrying instructs record compared with the NDEF of the data of small data quantity, and passes through electromagnetism by the NFC antenna of the NFC reader Field is sent to the NFC label；
It is described that the data management system of the NFC label parses and obtains that the application program of the NFC reader to be read Carrying is compared with the initial address of the NDEF record groups of the data of small data quantity, the NDEF notes by the carrying compared with the data of small data quantity Record and read from the data field of the non-volatile memory cells.
18. a kind of NFC reader is to the multifile data rewriting method of NFC label,
The NFC reader includes NFC antenna, NFC resolvers and application program,
The NFC label includes NFC antenna, data management system and non-volatile memory cells, the non-volatile memories list Member includes directory area, data head and data field, and the data field is with multigroup carrying compared with the NDEF records of the data of small data quantity Form stores the data of larger data amount, and the data of the larger data amount include multiple files, each file difference The NDEF records that the data compared with small data quantity are carried described in one group are packaged into, the data head describes every group of the data field The carrying is compared with the initial address of the NDEF records of the data of small data quantity, and the directory area describes the sum of the data head According to more than the title, type, function of length, the total data length of the data field, and the NFC label at least one letter Breath,
The multifile data rewriting method includes：
The data management system of the NFC label loads the directory area and the data head of the non-volatile memory cells The carrying being packaged into compared with the data of small data quantity NDEF record groups, and by the NFC antenna modulated electromagnetic of the NFC label Field is sent to the NFC reader；
The carrying that the NFC antenna acquisition directory area of the NFC reader and the data head are packaged into is compared with small data The NDEF record groups of the data of amount, the directory area and the data head are sent to institute after being parsed via the NFC resolvers State the application program of NFC reader；
The application program of the NFC reader is according at least one index information described by the directory area and the data head It is determined that the file and the reading order of multiple files to be rewritten, and according to the Document encapsulation to be rewritten into the carrying it is smaller The initial address of the NDEF records of the data of data volume describes the carrying and rewritten compared with the NDEF record groups of the data of small data quantity Instruction, the NDEF record groups of the NFC generators of the NFC reader by the carrying to be rewritten compared with the data of small data quantity Initial address, corresponding rewrite data instruction be packaged into respectively at least one carrying compared with small data quantity data NDEF instruction Record, the NDEF record groups of data field, and sent by the NFC antenna of the NFC reader by electromagnetic field to NFC marks Label；
The NFC antenna demodulation electromagnetic field of the NFC label obtains NDEF of at least one the described carrying compared with the data of small data quantity Instruction records and sends the data management system of the NFC label to；
It is described that the data management system of the NFC label parses and obtains that the application program of the NFC reader to be rewritten Carry compared with small data quantity data NDEF record groups initial address and corresponding rewrite data the carrying compared with small data The NDEF record groups of the data of amount, will carry data compared with small data quantity described in the data field of the non-volatile memory cells NDEF record groups perform rewriting.
19. multifile data rewriting method as claimed in claim 18, it is characterised in that：
The data head also describes the file carried described in each group entrained by the NDEF records of the data compared with small data quantity Filename, file type or identification code more than at least one information, the identification code is used to mark the carrying compared with small data The type of the file entrained by the NDEF records of the data of amount,
The application program of the NFC reader is used to obtain the NDEF for carrying the data compared with small data quantity described in each group records Filename, file type or the identification code of the entrained file, and according to visualization of the user by the application program At least one selected described filename of interface, file type or identification code determine changing for the file to be rewritten and multiple files Write order.
20. multifile data rewriting method as claimed in claim 18, it is characterised in that：
The application program of the NFC reader is according at least one index information described by the directory area and the data head It is determined that the rewriting order of the file to be rewritten and multiple files, and according to the Document encapsulation to be rewritten into the carrying it is smaller The initial address of the NDEF records of the data of data volume describes the carrying and rewritten compared with the NDEF record groups of the data of small data quantity Instruction, the write-over instruction include the carrying to be rewritten compared with the NDEF record groups of the data of small data quantity initial address with And multigroup carrying, compared with the rewriting order of the NDEF records of the data of small data quantity, the NFC generators of the NFC reader will The write-over instruction is packaged at least one carrying and instructs record compared with the NDEF of the data of small data quantity, by corresponding rewrite data NDEF record group of at least one carrying compared with the data of small data quantity is packaged into, and is passed through by the NFC antenna of the NFC reader Electromagnetic field is sent to the NFC label；
It is described that the data management system of the NFC label parses and obtains that the application program of the NFC reader to be rewritten Carrying, will be described non-volatile by rewriting order compared with the initial address of the NDEF record groups of the data of small data quantity and rewriting order The NDEF record groups that the data compared with small data quantity are carried described in the data field of property memory cell perform rewriting.
21. multifile data rewriting method as claimed in claim 18, it is characterised in that：
The application program of the NFC reader is according at least one index information described by the directory area and the data head It is determined that the rewriting order of the file to be rewritten and multiple files, and according to the Document encapsulation to be rewritten into the carrying it is smaller The initial address of the NDEF records of the data of data volume describes to carry compared with small data quantity described in every group one by one according to rewriting order The write-over instruction of the NDEF records of data, each write-over instruction includes the one group of carrying to be rewritten compared with small data quantity Each write-over instruction is packaged into by the initial address of the NDEF records of data, the NFC generators of the NFC reader respectively At least one carrying instructs record compared with the NDEF of the data of small data quantity, and corresponding rewrite data is packaged into at least one carrying Sent compared with the NDEF record groups of the data of small data quantity, and by the NFC antenna of the NFC reader by electromagnetic field to described NFC label；
It is described that the data management system of the NFC label parses and obtains that the application program of the NFC reader to be rewritten Carry compared with small data quantity data NDEF record groups initial address, by described in the data field of the non-volatile memory cells The NDEF record groups carried compared with the data of small data quantity perform rewriting.
22. a kind of NFC reader is to the multifile data rewrite method of NFC label,
The NFC reader includes NFC antenna, NFC resolvers and application program,
The NFC label includes NFC antenna, data management system and non-volatile memory cells, the non-volatile memories list Member includes directory area, data head and data field, and the data field is with multigroup carrying compared with the NDEF records of the data of small data quantity Form stores the data of larger data amount, and the data of the larger data amount include multiple files, each file difference The NDEF records that the data compared with small data quantity are carried described in one group are packaged into, the data head describes every group of the data field The carrying is compared with the initial address of the NDEF records of the data of small data quantity, and the directory area describes the sum of the data head According to length, the total data length of the data field,
The multifile data rewrite method includes：
The application program of the NFC reader according to according to the file to be rewritten, rewrite be sequentially generated new Document encapsulation into The carrying is compared with the data head of the initial address of the NDEF records of the data of small data quantity, the index information of directory area, the NFC The NFC generators of read write line encapsulate the data head to be rewritten, the index information of directory area, corresponding rewritable paper respectively Into at least one carrying compared with the NDEF instructions record of the data of small data quantity, the NDEF of the NDEF record groups of directory area, data head Record group, the NDEF record groups of data field, and sent by the NFC antenna of the NFC reader by electromagnetic field to NFC marks Label；
The NFC antenna demodulation electromagnetic field of the NFC label obtains NDEF of at least one the described carrying compared with the data of small data quantity Instruction records and sends the data management system of the NFC label to；
The data management system of the NFC label parses and obtains the instruction to be rewritten of the application program of the NFC reader, Directly the carrying of the directory area received, data head is re-writed compared with the NDEF record groups of the data of small data quantity described non- The directory area and data head of volatile memory cell, by the carrying of the data field received compared with the data of small data quantity NDEF record groups re-write the data field of the non-volatile memory cells in order.
23. multifile data rewrite method as claimed in claim 22, it is characterised in that：
The NDEF that the data head is additionally operable to describe to carry the data compared with small data quantity described in each group records the entrained text More than filename, file type or the identification code of part at least one information, the identification code is used to mark the carrying compared with decimal According to the type of the entrained file of the NDEF records of the data of amount,
The application program of the NFC reader passes through selected at least one of the visualization interface of the application program according to user The filename, file type or identification code determine the rewriting order for the file and multiple files to be rewritten.
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