CN105792113B - NFC method, intelligent information terminal, intelligent terminal and NFC communication system - Google Patents

Abstract

The invention discloses a kind of NFC method, intelligent information terminal, intelligent terminal and NFC communication systems, and wherein the NFC method includes: to establish NFC long connecting link with intelligent terminal；Raw data packets are split as several subdata packets: each subdata packet is successively sent to intelligent terminal by NFC long connecting link, so that intelligent terminal receives whole subdata packets and the whole subdata packets received are integrated into raw data packets.Technical solution of the present invention, which can be realized, is based only upon NFC chip so that the raw data packets of large capacity are sent to intelligent terminal.In the present invention, since the transmitting of raw data packets is based only upon NFC protocol, thus has higher safety.Furthermore, the NFC method is applicable not only to the intelligent terminal for having NFC chip, it is also applied for the intelligent terminal for not having NFC chip, thus breach the limitation of terminal, environmental factor, the NFC use pattern for effectively extending the intelligent terminal user for not having NFC chip, is conducive to the smooth transition of user.

Description

NFC communication method, intelligent information terminal, intelligent terminal and NFC communication system

technical field

The invention relates to the field of communication technology, in particular to an NFC communication method, an intelligent information terminal, an intelligent terminal and an NFC communication system.

Background technique

As a competitive short-distance wireless communication technology, Near Field Communication (NFC) has the advantages of short communication distance, short connection establishment time, low energy consumption requirements, high security, simple network topology, and low cost. , easy to use and intuitive, and compatible with the existing contactless smart card technology, it is very suitable for contactless services applied to mobile smart terminals, and realizes the rapid exchange of important data such as financial information or sensitive personal information.

NFC transmission is superior to infrared and Bluetooth transmission methods. As a consumer-facing transaction mechanism, NFC is faster, more reliable and much simpler than infrared. Compared with Bluetooth, NFC is oriented to close-range transactions and is suitable for exchanging important data such as financial information or sensitive personal information; Bluetooth can make up for the shortcoming of NFC communication distance and is suitable for longer-distance data communication. Therefore, NFC and Bluetooth can complement each other and co-exist.

In fact, the fast and lightweight NFC protocol can be used to guide the Bluetooth pairing process between two devices, facilitating the use of Bluetooth. In the related technology, in the NFC static tag mode, a mobile terminal with an NFC chip is close to another mobile terminal with an NFC static tag, and the latter directly transmits the status of the Bluetooth or WIFI port to the former, and then according to the status of the Bluetooth or WIFI port The status directly establishes a Bluetooth or WIFI connection, and finally realizes data communication through Bluetooth or WIFI.

The data communication method in the prior art that combines the NFC technology with other transmission methods does not realize data transmission based on the NFC technology in the true sense. In addition, there are security risks in transmission methods such as Bluetooth and WIFI technology, which cannot guarantee the security of payment business applications. For business operations, relying too much on terminal configuration and environmental factors leads to uncertainty in the operation of NFC as a service.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art, and proposes an NFC communication method, an intelligent information terminal, an intelligent terminal and an NFC communication system.

According to an aspect of the present invention, a kind of NFC communication method is provided, comprising:

Establish an NFC long connection link with the smart terminal;

Split the original packet into several subpackets:

Each of the sub-data packets is sent to the smart terminal sequentially through the NFC long connection link, so that the smart terminal receives all the sub-data packets and integrates all the received sub-data packets into the Describe the original data packet.

Optionally, before the step of establishing the NFC long connection link with the intelligent terminal, it also includes:

Authenticate the identity of the smart terminal;

After the smart terminal passes the identity authentication, the step of establishing an NFC permanent connection link with the smart terminal is executed.

Optionally, after the smart terminal passes the identity authentication, it also includes:

receiving an application category instruction of the smart terminal;

Obtain the corresponding original data package from the information management platform according to the application category instruction.

According to another aspect of the present invention, a kind of NFC communication method is provided, comprising:

Establish an NFC long connection link with an intelligent information terminal;

Receive several sub-packets sent by the intelligent information terminal through the NFC long connection link;

All the received sub-packets are integrated into an original data package.

Optionally, before the step of establishing an NFC long connection link with the intelligent information terminal, it also includes:

sending identity information to the smart information terminal for the smart information terminal to authenticate the smart terminal;

After the smart terminal passes the identity authentication, the step of establishing an NFC permanent connection link with the smart information terminal is executed.

Optionally, after the smart terminal passes the identity authentication, it also includes:

Sending an application category instruction to the intelligent information terminal, so that the intelligent information terminal obtains the corresponding original data packet from the information management platform according to the application category instruction, and splits the original data packet into several sub-packets.

According to yet another aspect of the present invention, an intelligent information terminal is provided, including:

A first link establishment module, configured to establish an NFC long connection link with the smart terminal;

The data splitting module is used to split the original data packet into several sub-packets:

The NFC chip is used to send each of the sub-packets to the smart terminal sequentially through the NFC long connection link, so that the smart terminal can receive all the sub-packets and send all the received sub-packets The data packets are integrated into the original data packets.

Optionally, also include:

The identity authentication module is used to authenticate the identity of the smart terminal;

The first link establishment module is specifically used to establish an NFC long connection link with the intelligent terminal after the intelligent terminal passes identity authentication;

The NFC chip is also used to receive an application category instruction of the smart terminal after the smart terminal passes identity authentication;

The intelligent information terminal also includes:

The data obtaining module is used to obtain the corresponding original data package from the information management platform according to the application category instruction.

According to yet another aspect of the present invention, a smart terminal is provided, including:

The second link establishment module is used to establish an NFC long connection link with the intelligent information terminal;

A smart card, configured to receive several sub-packets sent by the intelligent information terminal through the NFC long connection link;

An integration module, configured to integrate all the received sub-packets into original data packets.

Optionally, also include:

An identity information sending module, configured to send identity information to the smart information terminal, so that the smart information terminal can authenticate the smart terminal;

The second link establishment module is specifically used to establish an NFC long connection link with an intelligent information terminal after the intelligent terminal passes identity authentication;

The smart card is also used to send an application category command to the smart information terminal after the smart terminal passes the identity authentication, so that the smart information terminal can obtain the corresponding original data packet from the information management platform according to the application category command , and split the original packet into several subpackets.

According to yet another aspect of the present invention, an NFC communication system is provided, including: the above-mentioned smart information terminal and the above-mentioned smart terminal.

The present invention has the following beneficial effects:

The present invention provides an NFC communication method, an intelligent information terminal, an intelligent terminal and an NFC communication system, wherein the NFC communication method includes: establishing an NFC long connection link with an intelligent terminal; splitting an original data packet into several sub-data packets: Each sub-packet is sent to the smart terminal sequentially through the NFC long connection link, so that the smart terminal receives all the sub-packets and integrates all the received sub-packets into the original data package. The technical scheme of the present invention can realize sending large-capacity original data packets to intelligent terminals only based on the NFC chip. In the present invention, because the transmission of the original data packet is only based on the NFC protocol, it has relatively high security. In addition, this NFC communication method is not only applicable to smart terminals with NFC chips, but also to smart terminals without NFC chips, so it breaks through the limitations of terminals and environmental factors, lays the foundation for the standardized operation of NFC as a service, and effectively expands The NFC usage mode of smart terminal users who do not have NFC chips is conducive to the smooth transition of users.

Description of drawings

FIG. 1 is a flowchart of an NFC communication method provided by Embodiment 1 of the present invention;

FIG. 2 is a flow chart of an NFC communication method provided in Embodiment 2 of the present invention;

FIG. 3 is a flowchart of an NFC communication method provided by Embodiment 3 of the present invention;

FIG. 4 is a flowchart of an NFC communication method provided in Embodiment 4 of the present invention;

FIG. 5 is a schematic structural diagram of an intelligent information terminal provided by Embodiment 5 of the present invention;

FIG. 6 is a schematic structural diagram of a smart terminal provided by Embodiment 5 of the present invention.

Detailed ways

In order for those skilled in the art to better understand the technical solution of the present invention, an NFC communication method, an intelligent information terminal, an intelligent terminal and an NFC communication system provided by the present invention will be described in detail below with reference to the accompanying drawings.

Embodiment one

Fig. 1 is a flow chart of an NFC communication method provided by Embodiment 1 of the present invention. As shown in Fig. 1, the NFC communication method is based on an intelligent information terminal with an NFC chip, and is used to transfer a large-capacity The original data is sent to the smart terminal with the smart card, and the NFC communication method includes:

Step 101: Establish an NFC permanent connection link with the smart terminal.

Different from the short connection mode used in the prior art for NFC communication, in the present invention, the intelligent information terminal establishes an NFC long connection link with the intelligent terminal through the first link establishment module. Based on the NFC long connection link, the NFC chip can continuously send multiple data packets conforming to the NFC communication standard.

Step 102: Split the original data packet into several sub-data packets.

Based on the NFC communication standard, NFC tags can only store small-capacity data, that is, only one small-capacity data packet that the NFC chip can transmit each time. In the actual information communication process, the capacity of the data packet to be transmitted is much larger than the maximum capacity of the NFC chip.

In step 102, in order to realize utilizing the NFC chip to transmit large-capacity data packets, the intelligent information terminal splits the large-capacity original data packets into several sub-packets whose capacity is less than the maximum capacity of the NFC chip. Data packets can be stored in the NFC chip.

Step 103: Send each sub-packet to the smart terminal sequentially through the NFC long connection link, so that the smart terminal receives all the sub-packets and integrates all the received sub-packets into an original data package.

It should be noted that during the process of establishing the NFC long-connection link in step 101, the intelligent information terminal and the intelligent terminal will negotiate some control information in the data communication process, such as: the duration of the NFC long-connection link, the original data packet The splitting algorithm and the sub-packet integration algorithm.

In step 103, there are two corresponding modes when the NFC chip in the smart information terminal sends the sub-packet to the smart card in the smart terminal. First, when the smart card (for example: SWP-SIM card) contains an NFC chip, the NFC chip in the smart information terminal is in the card simulation mode (the NFC chip is used as a dynamic label), and the NFC chip in the smart card is in the card reading mode accordingly. In the device mode, the NFC chip in the smart card reads the sub-packets on the NFC chip in the smart information terminal one by one through the NFC long connection link. Second, when the smart card (for example: JAVA card) does not contain an NFC chip, the NFC chip in the smart information terminal is in the card reader mode (the NFC chip is used as a dynamic card reader), and the NFC chip in the card reader mode Write the sub-packets into the smart card one by one through the NFC long connection link.

After receiving all the sub-packets, the smart terminal integrates all the sub-packets into the original data package according to the sub-packet integration algorithm negotiated during the establishment of the NFC long-connection link.

Through the above steps 101 to 103, it is possible to send a large-capacity original data packet to the smart terminal only based on the NFC chip. In the present invention, because the transmission of the original data packet is only based on the NFC protocol, it has relatively high security. In addition, this NFC communication method is not only applicable to smart terminals with NFC chips, but also to smart terminals without NFC chips, thus breaking through the limitations of terminals and environmental factors, laying the foundation for the standardized operation of NFC as a service, and effectively Expand the NFC usage mode of smart terminal users who do not have NFC chips, which is conducive to the smooth transition of users.

Embodiment two

Fig. 2 is the flow chart of a kind of NFC communication method that the present invention embodiment 2 provides, as shown in Fig. 2, this NFC communication method is based on the intelligent information terminal with NFC chip, and this NFC communication method comprises:

Step 201: Perform identity authentication on the smart terminal.

In step 201, the smart information terminal acquires the identity information of the smart terminal, and performs identity authentication on the smart terminal based on the acquired identity information.

Among them, when the smart card in the smart terminal contains an NFC chip, the smart terminal can store its identity information in the form of an NFC static tag. At this time, the NFC chip in the smart information terminal can be in the card simulation mode to read the static Identity information in the label. When the smart card in the smart terminal does not contain an NFC chip, the identity information can be sent to the smart information terminal through the corresponding identity information sending module.

If the smart terminal does not pass the identity authentication, feed back the information that the identity authentication fails to the smart terminal; if the smart terminal passes the identity authentication, continue to execute the following step 202 .

Step 202: Receive an application category instruction of the smart terminal.

In step 202, the application category instructions sent by the smart terminal include generally two types: information push instructions and information query instructions.

Step 203: Obtain the corresponding original data package from the information management platform according to the instruction of the application category.

In step 203, the intelligent information terminal can obtain the original data packet of the push information corresponding to the information push instruction from the information management platform, or query the original data packet of the query information corresponding to the information query instruction from the information management platform .

Step 204: Establish an NFC permanent connection link with the smart terminal.

For the specific content of step 204 in this embodiment, refer to the description of step 101 in the first embodiment above.

It should be noted that, in this embodiment, step 204 may be performed prior to step 202, or may be performed simultaneously with step 202.

Step 205: Split the original data packet into several sub-data packets.

Step 206: Send each sub-packet to the smart terminal sequentially through the NFC long connection link, so that the smart terminal receives all the sub-packets and integrates all the received sub-packets into an original data package.

For the specific content of step 205 and step 206 in this embodiment, refer to the description of step 102 and step 103 in the first embodiment above.

It can be seen from the above content that the technical solution of the present invention can realize the safe interaction of information between intelligent information terminals and intelligent terminals.

Embodiment three

Fig. 3 is a flow chart of an NFC communication method provided by Embodiment 3 of the present invention. As shown in Fig. 3, the NFC communication method is based on an intelligent terminal with a smart card, and is used to obtain information from an intelligent information terminal with an NFC chip. Large-capacity data packets, the NFC communication method includes:

Step 301: Establish an NFC permanent connection link with an intelligent information terminal.

In step 301, the intelligent information terminal and the intelligent terminal will negotiate some control information in the data communication process, such as: the duration of the NFC long-connection link, the splitting algorithm of the original data packet, the integration algorithm of the sub-data packet, and Based on the negotiation result, a corresponding NFC permanent connection link is established between the smart terminal and the smart information terminal.

Step 302: Receive several sub-packets sent by the intelligent information terminal through the NFC permanent connection link.

Based on the NFC communication standard, NFC tags can only store small-capacity data, that is, only one small-capacity data packet that the NFC chip can transmit each time. In the actual information communication process, the capacity of the data packet to be transmitted is much larger than the maximum capacity of the NFC chip.

For this reason, the intelligent information terminal will split the large-capacity original data packet into several sub-packets whose capacity is smaller than the maximum capacity of the NFC chip. At this time, a single sub-packet can be stored in the NFC chip.

Next, the NFC chip in the smart information terminal sends sub-data packets one by one to the smart card in the smart terminal through the NFC long connection link. There are two corresponding modes when the NFC chip in the intelligent information terminal is sending data packets. First, when the smart card (for example: SWP-SIM card) contains an NFC chip, the NFC chip in the smart information terminal is in the card simulation mode (the NFC chip is used as a dynamic label), and the NFC chip in the smart card is in the card reading mode accordingly. In the device mode, the NFC chip in the smart card reads the sub-packets on the NFC chip in the smart information terminal one by one through the NFC long connection link. Second, when the smart card (for example: JAVA card) does not contain an NFC chip, the NFC chip in the smart information terminal is in the card reader mode (the NFC chip is used as a dynamic card reader), and the NFC chip in the card reader mode Write the sub-packets into the smart card one by one through the NFC long connection link.

Step 303: Combine all received sub-packets into original data packets.

The smart terminal integrates all sub-packets into original data packets according to the sub-packet integration algorithm negotiated during the establishment of the NFC permanent connection link.

Through the above steps 301 to 303, it is possible to send a large-capacity original data packet to the smart terminal only based on the NFC technology. In the present invention, because the transmission of the original data packet is only based on the NFC protocol, it has relatively high security. In addition, this NFC communication method is not only applicable to smart terminals with NFC chips, but also to smart terminals without NFC chips, thus breaking through the limitations of terminals and environmental factors, laying the foundation for the standardized operation of NFC as a service, and effectively Expand the NFC usage mode of smart terminal users who do not have NFC chips, which is conducive to the smooth transition of users.

Embodiment four

FIG. 4 is a flow chart of an NFC communication method provided in Embodiment 4 of the present invention. As shown in FIG. 4 , the NFC communication method is based on an intelligent terminal with a smart card, and the NFC communication method includes:

Step 401: Send identity information to the smart information terminal for the smart information terminal to authenticate the smart terminal.

In step 401, when the smart card in the smart terminal contains an NFC chip, the smart terminal can store its identity information in the form of an NFC static label. At this time, the NFC chip in the smart information terminal can be in card emulation mode to Read the identity information in the static tag. When the smart card in the smart terminal does not contain an NFC chip, the identity information can be sent to the smart information terminal through the corresponding identity information sending module.

If the smart terminal does not pass the identity authentication, the smart terminal will receive information that the identity authentication fails to be fed back to the smart terminal; if the smart terminal passes the identity authentication, continue to execute the following step 402 .

Step 402: Send the application category instruction to the intelligent information terminal, so that the intelligent information terminal obtains the corresponding original data packet from the information management platform according to the application category instruction, and splits the original data packet into several sub-packets.

In step 402, the application category instructions sent by the smart terminal include generally two types: information push instructions and information query instructions. At this time, the intelligent information terminal can obtain the original data packet of the push information corresponding to the information push instruction from the information management platform, or query the original data packet of the query information corresponding to the information query instruction from the information management platform, and The large-capacity original data packet is split into several small-capacity sub-packets suitable for NFC protocol delivery.

Step 403: Establish an NFC permanent connection link with the intelligent information terminal.

It should be noted that step 403 may be performed prior to step 202, or may be performed simultaneously with step 402.

Step 404: Receive several sub-packets sent by the intelligent information terminal through the NFC permanent connection link.

Step 405: Combine all received sub-packets into original data packets.

For the specific content of step 404 and step 405 in this embodiment, refer to the description of step 302 and step 303 in the first embodiment above.

It can be seen from the above content that the technical solution of the present invention can realize the safe interaction of information between intelligent information terminals and intelligent terminals.

Embodiment five

Fig. 5 is a schematic structural diagram of an intelligent information terminal provided in Embodiment 5 of the present invention. As shown in Fig. 5, the intelligent information terminal is used to implement the NFC communication method provided in the first and second embodiments above. The terminal includes: a first link establishment module 1 , a data splitting module 2 and an NFC chip 3 . Wherein, the first link establishment module 1 is used for establishing the NFC long connection link with the intelligent terminal; the data splitting module 2 is used for splitting the original data packet into several sub-packets, and the NFC chip 3 is used for splitting each sub-packet The NFC long connection link is sent to the smart terminal in turn, so that the smart terminal can receive all the sub-packets and integrate all the received sub-packets into the original data package.

It should be noted that the first link establishment module 1 in this embodiment is used to execute step 101 in the first embodiment and step 204 in the second embodiment, and the data splitting module 2 in this embodiment is used to execute Step 102 in the above-mentioned embodiment one and step 205 in the second embodiment, the NFC chip 3 in this embodiment is used to perform step 102 in the above-mentioned embodiment one and step 206 in the second embodiment, for this embodiment For descriptions of the first link establishment module 1 , the data splitting module 2 and the NFC chip 3 , refer to the corresponding content in the first and second embodiments above, and will not be repeated here.

The intelligent information terminal provided in this embodiment can send a large-capacity original data packet to the intelligent terminal only based on the NFC chip 3 . In the present invention, because the transmission of the original data packet is only based on the NFC protocol, it has relatively high security.

Optionally, the intelligent information terminal further includes: an identity authentication module 4, which is used to authenticate the identity of the intelligent terminal. At this time, the first link establishing module 1 is specifically configured to establish an NFC permanent connection link with the smart terminal after the smart terminal passes identity authentication.

Further optionally, the NFC chip 3 is also used to receive an application category instruction of the smart terminal after the smart terminal passes identity authentication. At this time, the intelligent information terminal further includes: a data acquisition module 5, which is used to acquire corresponding original data packets from the information management platform 6 according to the instruction of the application category.

It should be noted that the identity authentication module 4 in this embodiment is used to execute step 201 in the second embodiment above, and the data acquisition module 5 in this embodiment is used to execute step 203 in the second embodiment above. For the description of the identity authentication module 4 and the data acquisition module 5 in this embodiment, reference may be made to the corresponding content in the first and second embodiments above, and details are not repeated here.

It can be seen from the foregoing that the intelligent information terminal provided in this embodiment can implement secure information interaction with the intelligent terminal.

Embodiment six

FIG. 6 is a schematic structural diagram of an intelligent terminal provided in Embodiment 6 of the present invention. As shown in FIG. 6 , the intelligent terminal is used to implement the NFC communication method provided in Embodiment 3 and Embodiment 4 above. The intelligent terminal includes: Second link establishment module 7 , smart card 8 and integration module 9 . Wherein, the second link establishment module 7 is used to establish the NFC long connection link with the intelligent information terminal; the smart card 8 is used to receive several sub-packets sent by the intelligent information terminal through the NFC long connection link; the integration module 9 is used to receive All received subpackets are integrated into the original packet.

It should be noted that the second link establishment module 7 in this embodiment is used to execute step 301 in the above third embodiment and step 403 in the fourth embodiment, and the smart card 8 in this embodiment is used to execute the above third embodiment Step 302 in the above-mentioned embodiment and step 404 in the fourth embodiment, the integration module 9 in this embodiment is used to execute the step 303 in the above-mentioned third embodiment and 405 in the fourth embodiment. For the description of the second link establishment module 7, the smart card 8 and the integration module 9 in this embodiment, refer to the corresponding content in the third embodiment and the fourth embodiment above, and will not repeat them here.

Optionally, the smart terminal further includes: an identity information sending module 10, configured to send the identity information to the smart information terminal, so that the smart information terminal can authenticate the smart terminal. At this time, the second link establishment module 7 is specifically configured to establish an NFC long connection link with the intelligent information terminal after the intelligent terminal passes the identity authentication.

Further optionally, the smart card 8 is also used to send an application category command to the smart information terminal after the smart terminal passes the identity authentication, so that the smart information terminal can obtain the corresponding original data packet from the information management platform 6 according to the application category command, and send The original data packet is split into several sub-packets.

It should be noted that the identity information sending module 10 in this embodiment is used to execute step 401 in the fourth embodiment above. For specific content, please refer to the corresponding content in the fourth embodiment above, which will not be repeated here.

It should be noted that in this embodiment, the identity information sending module 10 can function together with the smart card 8, that is, the identity information of the smart terminal can be written into the smart card 8 for the NFC chip 3 in the smart information terminal to read. In this case, the structural complexity of the smart terminal can be effectively reduced, and the production cost of the smart terminal can be reduced.

It can be seen from the above content that the smart terminal provided in this embodiment can implement secure interaction of information with the smart information terminal.

Embodiment seven

Embodiment 7 of the present invention provides an NFC communication system, including: an intelligent information terminal and an intelligent terminal, wherein the intelligent information terminal adopts the intelligent information terminal in the fifth embodiment above, and the intelligent terminal adopts the intelligent information terminal in the sixth embodiment above. For the specific content of the terminal, refer to the descriptions in Embodiment 5 and Embodiment 6 above, and details are not repeated here.

It can be understood that, the above embodiments are only exemplary embodiments adopted for illustrating the principle of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims (9)

1. A kind of NFC communication method, based on the intelligent terminal with smart card, and the intelligent information terminal with NFC chip, it is characterized in that, comprising: receiving an application category instruction of the smart terminal; Obtain the corresponding original data package from the information management platform according to the application category instruction; Establish an NFC long connection link with the smart terminal; Split the original data packet into multiple sub-packets, and a single sub-packet is stored in the NFC chip; When the smart card contains an NFC chip, the NFC chip in the smart information terminal is in the card simulation mode, the NFC chip in the smart card is in the card reader mode, and the NFC chip in the smart card is read one by one through the NFC long connection link The subpacket on the NFC chip in the intelligent information terminal; when the smart card does not contain the NFC chip, the NFC chip in the intelligent information terminal is in the card reader mode, and the NFC chip in the intelligent information terminal passes through the NFC long connection link Writing the sub-packets into the smart card one by one; the capacity of the sub-packets is less than the maximum capacity of the NFC chip; for the smart terminal to receive all the sub-packets and integrate all the received sub-packets into the original data package. 2. NFC communication method according to claim 1, is characterized in that, also comprises before the described step of establishing NFC long connection link with intelligent terminal: Authenticate the identity of the smart terminal; After the smart terminal passes the identity authentication, the step of establishing an NFC permanent connection link with the smart terminal is executed. 3. A kind of NFC communication method, based on the intelligent terminal with smart card, and the intelligent information terminal with NFC chip, it is characterized in that, comprising: Sending an application category instruction to the intelligent information terminal, so that the intelligent information terminal obtains the corresponding original data packet from the information management platform according to the application category instruction, and splits the original data packet into multiple sub-data packets, a single The sub-packet is stored in the NFC chip, and the capacity of the sub-packet is less than the maximum capacity of the NFC chip; an NFC long connection link is established with the intelligent information terminal; When the smart card contains an NFC chip, the NFC chip in the smart information terminal is in the card simulation mode, the NFC chip in the smart card is in the card reader mode, and the NFC chip in the smart card is read one by one through the NFC long connection link The subpacket on the NFC chip in the intelligent information terminal; when the smart card does not contain the NFC chip, the NFC chip in the intelligent information terminal is in the card reader mode, and the NFC chip in the intelligent information terminal passes through the NFC long connection link Write the subpackets to the smart card one by one; All the received sub-packets are integrated into an original data package. 4. The NFC communication method according to claim 3, characterized in that, before the step of establishing the NFC long connection link with the intelligent information terminal, it also includes: sending identity information to the smart information terminal for the smart information terminal to authenticate the smart terminal; After the smart terminal passes the identity authentication, the step of establishing an NFC permanent connection link with the smart information terminal is executed. 5. An intelligent information terminal used in conjunction with an intelligent terminal with a smart card, characterized in that it comprises: The data obtaining module is used to obtain the corresponding original data package from the information management platform according to the application category instruction received from the smart terminal; The first link establishment module is used to establish an NFC long connection link with the intelligent terminal; the data splitting module is used to split the original data packet into a plurality of sub-packets, and the capacity of the sub-packets is less than that of the NFC chip The maximum capacity, a single sub-packet is stored in the NFC chip; NFC chip, when the smart card contains the NFC chip, the NFC chip in the smart information terminal is in the card simulation mode, the NFC chip in the smart card is in the card reader mode, and the NFC chip in the smart information terminal will each described The sub-packets are sent to the NFC chip in the smart card one by one through the NFC long connection link; when the smart card does not contain the NFC chip, the NFC chip in the smart information terminal is in the card reader mode, and the smart card in the smart information terminal The NFC chip writes the sub-data packets into the smart card one by one through the NFC long connection link, so that the smart terminal can receive all the sub-data packets and integrate all the received sub-data packets into the original data packet . 6. The intelligent information terminal according to claim 5, further comprising: The identity authentication module is used to authenticate the identity of the smart terminal; The first link establishment module is specifically used to establish an NFC long connection link with the intelligent terminal after the intelligent terminal passes identity authentication; The NFC chip is further configured to receive an application category instruction of the smart terminal after the smart terminal passes identity authentication. 7. An intelligent terminal used in conjunction with an intelligent information terminal with an NFC chip, characterized in that it comprises: The second link establishment module is used to establish an NFC long connection link with the intelligent information terminal; The smart card is used to send an application category instruction to the intelligent information terminal, so that the intelligent information terminal obtains the corresponding original data packet from the information management platform according to the application category instruction, and splits the original data packet into multiple sub-data package, the capacity of the sub-packet is less than the maximum capacity of the NFC chip, and a single sub-packet is stored in the NFC chip; And when the smart card contains an NFC chip, the NFC chip in the smart information terminal is in the card simulation mode, the NFC chip in the smart card is in the card reader mode, and the NFC chip in the smart card is read one by one through the NFC long connection link. Get the subpacket on the NFC chip in the intelligent information terminal; when the smart card does not contain the NFC chip, the NFC chip in the intelligent information terminal is in the card reader mode, and the NFC chip in the intelligent information terminal passes through the NFC long connection chain The road writes the sub-packets into the smart card one by one; the integration module is used to integrate all the received sub-packets into the original data package. 8. The intelligent terminal according to claim 7, further comprising: An identity information sending module, configured to send identity information to the smart information terminal, so that the smart information terminal can authenticate the smart terminal; The second link establishment module is specifically configured to establish an NFC permanent connection link with the intelligent information terminal after the intelligent terminal passes the identity authentication. 9. An NFC communication system, characterized in that it comprises: the intelligent information terminal as claimed in claim 5 or 6, and the intelligent terminal as claimed in claim 7 or 8.