CN114501406A - Method and system for realizing rapid interconnection of equipment based on NFC - Google Patents

Abstract

The invention discloses a method and a system for realizing rapid interconnection of equipment based on NFC; according to the invention, the first terminal acquires the terminal information of the first terminal, calls the native NFC interface according to the application request, and starts the NFC card reading function; the second terminal calls the native NFC interface and starts the function of the NFC analog card; when detecting that a second terminal approaches, a first terminal sends terminal information to the second terminal; the second terminal receives the terminal information of the first terminal, selects an interconnection channel according to the terminal information, initiates an interconnection request to the first terminal and establishes interconnection; according to the invention, when the service is needed, the target equipment can be quickly found and selected through NFC, the target equipment does not need to be manually selected by a user, the method is more convenient, the interconnection channel is automatically selected according to data transmitted by NFC, the equipment is quickly and noninductive connected, a service developer does not need to consider a networking mode and a physical protocol, the service cost is reduced, and the expandability is higher.

Description

A method and system for realizing fast interconnection of devices based on NFC

technical field

The present invention relates to the technical field of mobile communication, in particular to a method and system for realizing fast interconnection of devices based on NFC.

Background technique

With the continuous development of the Android system, the Android system is used in more and more devices, such as mobile phones, POS machines, cash registers and other devices. Android provides many channels for interconnection between devices, such as Wi-Fi-AP, Wi-Fi-P2P, Bluetooth, NFC, local area network, etc.; but these traditional interconnection methods are convenient for users and developers. There are many shortcomings in the convenience of development.

First of all, traditional device discovery is often based on Wi-Fi and Bluetooth. Users need to manually turn on Wi-Fi, Bluetooth, etc., enter the settings application, search for nearby devices, and then select a target device from a list of discovered devices. Then the connection between the devices also requires the user to perform many operation selections and interactive operations before the connection between the devices can be realized. In today's increasingly demanding user experience and convenience, such a complicated interaction process often reduces users' desire to use. In addition, based on Wi-Fi, Bluetooth and other interconnection channels, there is network isolation and cannot communicate with each other. Developers need to face heterogeneous networks and adapt to different network protocols and standards. The cost of business development is high and the network scalability is poor.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a method and system for realizing fast interconnection of devices based on NFC, which can reduce service development costs and improve network scalability while realizing fast interconnection of devices.

In order to solve the above-mentioned technical problems, the technical scheme adopted in the present invention is:

A method for realizing fast interconnection of devices based on NFC, comprising the steps of:

S1. The first terminal acquires its own terminal information, and according to the application request, calls the native NFC interface to enable the NFC card reading function;

S2. The second terminal calls the native NFC interface to enable the NFC analog card function;

S3. When the first terminal detects that the second terminal is approaching, the terminal information is sent to the second terminal;

S4. The second terminal receives the terminal information of the first terminal, selects an interconnection channel according to the terminal information, and initiates an interconnection request to the first terminal to establish interconnection.

In order to solve the above-mentioned technical problems, another technical scheme adopted by the present invention is:

A system for realizing fast interconnection of devices based on NFC includes a first terminal and a second terminal, the first terminal includes a first processor, a first memory, and is stored in the first memory and can be used in the first terminal. a first computer program running on a processor, the second terminal comprising a second processor, a second memory, and a computer program stored in the second memory and executable on the second processor, the The first processor implements the following steps when executing the first computer program:

S1. Obtain its own terminal information, call the native NFC interface according to the application request, and enable the NFC card reading function;

S3. When detecting that the second terminal is approaching, send the terminal information to the second terminal;

The second processor implements the following steps when executing the second computer program:

S2. Call the native NFC interface and enable the NFC analog card function;

S4. Receive the terminal information of the first terminal, select an interconnection channel according to the terminal information, and initiate an interconnection request to the first terminal to establish interconnection.

The beneficial effects of the present invention are: the present invention can realize the rapid discovery and selection of the target device through NFC when the business needs it, and does not require the user to manually select the target device, which is more convenient, and automatically selects the interconnection channel according to the data transmitted by the NFC, and realizes the realization of the inter-device connection. Fast and non-inductive connection, business developers do not need to consider networking methods and physical protocols, reducing business costs and higher scalability.

Description of drawings

FIG. 1 is a flowchart of a method for realizing fast interconnection of devices based on NFC according to an embodiment of the present invention;

2 is a structural diagram of a system for realizing fast interconnection of devices based on NFC according to an embodiment of the present invention;

3 is a sequence diagram of a method for realizing fast interconnection of devices based on NFC according to an embodiment of the present invention;

FIG. 4 is an architectural diagram of a method for realizing fast interconnection of devices based on NFC according to an embodiment of the present invention;

Label description:

1. A system for realizing fast interconnection of devices based on NFC; 2. A first terminal; 3. A second terminal; 4. A first processor; 5. A first memory; 6. A second processor; 7. A second memory .

Detailed ways

In order to describe in detail the technical content, achieved objects and effects of the present invention, the following descriptions are given with reference to the embodiments and the accompanying drawings.

Please refer to FIG. 1 and FIG. 3 , a method for realizing fast interconnection of devices based on NFC includes the steps:

S1. The first terminal acquires its own terminal information, and according to the application request, calls the native NFC interface to enable the NFC card reading function;

S2. The second terminal calls the native NFC interface to enable the NFC analog card function;

S3. When the first terminal detects that the second terminal is approaching, the terminal information is sent to the second terminal;

S4. The second terminal receives the terminal information of the first terminal, selects an interconnection channel according to the terminal information, and initiates an interconnection request to the first terminal to establish interconnection.

As can be seen from the above description, the beneficial effects of the present invention are: the present invention can realize the rapid discovery and selection of target devices through NFC when the business needs it, and does not require the user to manually select the target device, which is more convenient, and automatically selects the interconnection according to the data transmitted by NFC. The channel realizes fast and non-inductive connection between devices. Service developers do not need to consider networking methods and physical protocols, which reduces service costs and has higher scalability.

Further, an AID is preconfigured on the first terminal and the second terminal;

The step S3 is specifically:

When the first terminal detects that the second terminal is approaching, it acquires the AID of the second terminal, and checks it with its own AID, and if it is consistent, sends the terminal information to the second terminal;

The step S4 is specifically:

The second terminal detects the terminal information sent by the first terminal, obtains the AID of the first terminal and collates it with its own AID, and if it is consistent, receives the terminal information of the first terminal. The terminal information selects an interconnection channel, and initiates an interconnection request to the first terminal to establish interconnection.

It can be seen from the above description that the terminal is pre-configured with AID, so as to ensure the security of terminal interconnection and to ensure that the terminal will not be mistakenly connected to other people's devices.

Further, the terminal information includes current Wi-Fi information, Bluetooth information, USB port information and NFC information of the terminal;

In the step S4, selecting an interconnection channel according to the terminal information is specifically:

According to the current Wi-Fi information, Bluetooth information, USB port information and NFC information of the first terminal, the optimal interconnection channel is selected from the available interconnection channels according to a preset priority sequence.

It can be seen from the above description that the terminal can obtain all the interconnection channels available between the current devices, and select the optimal interconnection channel for use, so as to better satisfy the user's preference for the use of interconnection channels.

Further, the priority sequence is:

USB communication>Bluetooth networking>Wi-FiP2P networking>Wi-FiAP networking>NFC networking.

As can be seen from the above description, through the above priority sequence, the interconnection channel with more stable and efficient data transmission is regarded as a higher priority, which improves the availability of the interconnection channel and the data transmission efficiency of the channel.

Further, it also includes steps after step S4:

S5. The second terminal determines whether the interconnection is successfully established, and if the establishment of the interconnection fails, obtains the terminal information from the first terminal again, and executes step S4.

As can be seen from the above description, it is also necessary to judge whether the interconnection is successful. If the interconnection fails, the terminal information of the interconnection target terminal must be re-acquired to confirm whether the interconnection channel that can be connected has changed, and the interconnection channel is re-established for interconnection to improve the efficiency of device interconnection. .

Please refer to FIG. 2 , a system for realizing fast interconnection of devices based on NFC includes a first terminal and a second terminal, the first terminal includes a first processor, a first memory, and is stored in the first memory and can be accessed A first computer program running on the first processor, the second terminal including a second processor, a second memory, and a computer program stored in the second memory and executable on the second processor A computer program, the first processor implements the following steps when executing the first computer program:

S1. Obtain its own terminal information, call the native NFC interface according to the application request, and enable the NFC card reading function;

S3. When detecting that the second terminal is approaching, send the terminal information to the second terminal;

The second processor implements the following steps when executing the second computer program:

S2. Call the native NFC interface and enable the NFC analog card function;

S4. Receive the terminal information of the first terminal, select an interconnection channel according to the terminal information, and initiate an interconnection request to the first terminal to establish interconnection.

It can be seen from the above description that the beneficial effects of the present invention are: the present invention can realize the rapid discovery and selection of target devices through NFC when the business needs it, and does not require the user to manually select the target device, which is more convenient, and transmits according to NFC. The data automatically selects the interconnection channel to realize the fast and non-inductive connection between the devices. The service developer does not need to consider the networking mode and physical protocol, which reduces the service cost and has higher scalability.

Further, an AID is preconfigured on the first terminal and the second terminal;

The step S3 is specifically:

When it is detected that the second terminal is approaching, the AID of the second terminal is obtained, and the AID of the second terminal is checked, and if it is consistent, the terminal information is sent to the second terminal;

The step S4 is specifically:

Detecting the terminal information sent by the first terminal, obtaining the AID of the first terminal and verifying it with its own AID, receiving the terminal information of the first terminal if it is consistent, and selecting an interconnection according to the terminal information channel, and initiates an interconnection request to the first terminal to establish interconnection.

It can be seen from the above description that the terminal is pre-configured with AID, so as to ensure the security of terminal interconnection and to ensure that the terminal will not be mistakenly connected to other people's devices.

Further, the terminal information includes current Wi-Fi information, Bluetooth information, USB port information and NFC information of the terminal;

In the step S4, selecting an interconnection channel according to the terminal information is specifically:

According to the current Wi-Fi information, Bluetooth information, USB port information and NFC information of the first terminal, the optimal interconnection channel is selected from the available interconnection channels according to a preset priority sequence.

It can be seen from the above description that the terminal can obtain all the interconnection channels available between the current devices, and select the optimal interconnection channel for use, so as to better satisfy the user's preference for the use of interconnection channels.

Further, the priority sequence is:

USB communication>Bluetooth networking>Wi-FiP2P networking>Wi-FiAP networking>NFC networking.

As can be seen from the above description, through the above priority sequence, the interconnection channel with more stable and efficient data transmission is regarded as a higher priority, which improves the availability of the interconnection channel and the data transmission efficiency of the channel.

Further, when the second processor executes the second computer program, the second processor further includes steps after step S4:

S5. Determine whether the interconnection is successfully established, and if the establishment of the interconnection fails, obtain the terminal information from the first terminal again, and execute step S4.

As can be seen from the above description, it is also necessary to judge whether the interconnection is successful. If the interconnection fails, the terminal information of the interconnection target terminal must be re-acquired to confirm whether the interconnection channel that can be connected has changed, and the interconnection channel is re-established for interconnection to improve the efficiency of device interconnection. .

The method and system for realizing fast interconnection of devices based on NFC of the present invention are suitable for scenarios where two or more terminals with NFC functions need to be interconnected.

Please refer to FIG. 1, FIG. 3 and FIG. 4, the first embodiment of the present invention is:

A method for realizing fast interconnection of devices based on NFC, comprising the steps of:

S1. The first terminal acquires its own terminal information, and according to the application request, calls the native NFC interface to enable the NFC card reading function;

The terminal information includes current Wi-Fi information, Bluetooth information, USB port information and NFC information of the terminal.

In this embodiment, referring to FIG. 4 , the related program resources in the terminal are divided into a user application layer, an ad hoc network adaptation layer and a system layer. Among them, the user application layer is the user of the device discovery and interconnection functions. According to the application's own business needs, it decides when to call the interface to obtain the device list or establish device interconnection with the target terminal; the system layer is the realization module of the device system function. After the networking adaptation layer completes the connection mode decision and after the connection is initiated, it executes the corresponding connection request, which in this embodiment refers to the Android system layer; the self-organizing network adaptation layer provides interfaces such as discovering devices and establishing device connections. Developers can quickly and conveniently access device interconnection; and complete main functions such as terminal discovery, connection networking, and optimal connection method decision-making. The main content of this scheme is realized by the ad hoc network adaptation layer, that is, the ad hoc network service.

In this embodiment, the ad hoc network service is started when the user's application binds the service, or starts by monitoring the system boot broadcast. In the first terminal, the application of the user application layer calls the device discovery interface provided by the ad hoc network service according to the business needs, and waits for the discovery of the target device. The ad hoc network service reads the terminal information of the first terminal, and the Wi-Fi local area network IP and port, Bluetooth address and port, USB port information and NFC information, etc. for transmission to the target terminal. At the same time, after receiving the call request from the user application layer, the ad hoc network service uses the Android native NFC interface to enable the NFC card reading function, and waits for the target terminal to read the card.

S2. The second terminal calls the native NFC interface to enable the NFC analog card function;

In this embodiment, the ad hoc network service of the second terminal uses the Android native NFC emulation card function to emulate the second terminal as an NFC card.

S3. When the first terminal detects that the second terminal is approaching, the terminal information is sent to the second terminal;

AIDs are preconfigured on the first terminal and the second terminal;

The step S3 is specifically:

When the first terminal detects that the second terminal is approaching, it acquires the AID of the second terminal, and checks it with its own AID, and if it is consistent, sends the terminal information to the second terminal.

In this embodiment, the first terminal and the second terminal are pre-specified with an AID. In this embodiment, an AID is configured by the user when the device is activated. In other equivalent embodiments, the ID of the user who logs in to the device can be used as the AID. , or use other information used to identify the user identity of the device as the AID, which can be determined according to requirements. When the first terminal is close to the second terminal, the first terminal reads the second terminal that is simulated as an NFC card. When the first terminal recognizes and senses the second terminal that is simulated as an NFC card and acquires the AID of the second terminal, it is pre-specified the AID, the first terminal sends its own IP, port information, Bluetooth address and other terminal information to the second terminal through NFC.

S4. The second terminal receives the terminal information of the first terminal, selects an interconnection channel according to the terminal information, and initiates an interconnection request to the first terminal to establish interconnection;

The step S4 is specifically:

The second terminal detects the terminal information sent by the first terminal, obtains the AID of the first terminal and collates it with its own AID, and if it is consistent, receives the terminal information of the first terminal. The terminal information selects an interconnection channel, and initiates an interconnection request to the first terminal to establish interconnection.

In the step S4, selecting an interconnection channel according to the terminal information is specifically:

According to the current Wi-Fi information, Bluetooth information, USB port information and NFC information of the first terminal, select the optimal interconnection channel among the available interconnection channels according to a preset priority sequence;

The priority sequence is:

USB communication>Bluetooth networking>Wi-FiP2P networking>Wi-FiAP networking>NFC networking.

In this embodiment, after receiving the terminal information sent by the first terminal through NFC, the second terminal verifies the AID of the first terminal, and if the verification passes, it receives the terminal information sent by the first terminal through NFC.

In this embodiment, the ad hoc network service of the second terminal determines the optimal connection channel according to Wi-Fi information, Bluetooth information, USB port information, and NFC information sent by the first terminal;

The networking mode is based on the networking modes currently available for the first terminal and the second terminal, and the priorities are:

USB communication--Bluetooth networking--Wi-Fi P2P networking--Wi-Fi AP networking--NFC networking;

Among them, NFC, as a traditional connection method of Android, is often only used in some payment, access control and other scenarios due to its limited data transmission size and speed, and there will be preemption problems when using multiple applications. Data transfer scenarios are often difficult to use. Therefore, it is the last choice in establishing interconnection channels.

S5. The second terminal determines whether the interconnection is successfully established, and if the establishment of the interconnection fails, obtains the terminal information from the first terminal again, and executes step S4.

In this embodiment, when the second terminal finds that the networking mode used is unreachable and cannot establish interconnection with the first terminal, it will re-acquire the terminal information of the first terminal, and re-decision to create an optimal connection channel. After the first terminal and the second terminal are successfully networked, a device interconnection channel is established, and service interaction data required by subsequent applications can be transmitted through the established interaction channel.

Please refer to Fig. 2, the second embodiment of the present invention is:

A system 1 for realizing fast interconnection of devices based on NFC, including a first terminal 2 and a second terminal 3, the first terminal 2 includes a first processor 4, a first memory 5 and storage in the first memory 5 and a first computer program that can be run on the first processor 4, the second terminal 3 includes a second processor 6, a second memory 7, and a first computer program stored in the second memory 7 and available on the A computer program running on the second processor 6. When the first processor 4 executes the first computer program, the steps performed by the first terminal 2 in the first embodiment above are implemented, and the second processor 6 executes the steps The steps implemented by the second terminal 3 in the first embodiment above are implemented when the second computer program is described.

The main principle of the present invention is to use NFC to determine the terminal information that needs to be interconnected, so as to select the available interconnection channel with the own device according to the obtained terminal information, so as to automatically select and connect.

To sum up, the present invention provides a method and system for realizing rapid interconnection of devices based on NFC, which can realize rapid discovery and selection of target devices through NFC when business needs require, and does not require users to manually select target devices, which is more convenient, and According to the data transmitted by NFC, the interconnection channel is automatically selected to realize fast and non-inductive connection between devices. Business developers do not need to consider networking methods and physical protocols, which reduces business costs and has higher scalability.

The above descriptions are only examples of the present invention, and are not intended to limit the scope of the present invention. Any equivalent transformations made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in related technical fields, are similarly included in the within the scope of patent protection of the present invention.

Claims (10)

1. A method for realizing rapid interconnection of devices based on NFC is characterized by comprising the following steps:

s1, the first terminal obtains the terminal information of the first terminal, calls a native NFC interface according to the application request, and starts an NFC card reading function;

s2, the second terminal calls the native NFC interface and starts the function of the NFC analog card;

s3, when the first terminal detects that the second terminal approaches, the first terminal sends the terminal information to the second terminal;

and S4, the second terminal receives the terminal information of the first terminal, selects an interconnection channel according to the terminal information, and initiates an interconnection request to the first terminal to establish interconnection.

2. The method for realizing rapid interconnection of devices based on NFC according to claim 1, wherein AIDs are preconfigured on the first terminal and the second terminal;

the step S3 specifically includes:

when the first terminal detects that the second terminal approaches, the AID of the second terminal is obtained and is checked with the AID of the first terminal, and if the AID of the first terminal is consistent with the AID of the first terminal, the terminal information is sent to the second terminal;

the step S4 specifically includes:

and the second terminal detects the terminal information sent by the first terminal, acquires the AID of the first terminal and performs proofreading with the AID of the second terminal, receives the terminal information of the first terminal if the AID of the second terminal is consistent with the AID of the first terminal, selects an interconnection channel according to the terminal information, sends an interconnection request to the first terminal, and establishes interconnection.

3. The method for realizing the rapid interconnection of the devices based on the NFC according to claim 1, wherein the terminal information comprises current Wi-Fi information, Bluetooth information, USB port information and NFC information of the terminal;

the step S4 of selecting an interconnection path according to the terminal information specifically includes:

and selecting the optimal interconnection channel from the available interconnection channels according to a preset priority sequence according to the current Wi-Fi information, Bluetooth information, USB port information and NFC information of the first terminal.

4. The method for realizing rapid interconnection of devices based on NFC according to claim 3, wherein the priority sequence is:

USB communication > bluetooth networking > Wi-FiP2P networking > Wi-FiAP networking > NFC networking.

5. The method for realizing fast interconnection of devices based on NFC according to claim 1, further comprising, after step S4, the steps of:

and S5, the second terminal judges whether the interconnection is successfully established, if the interconnection is failed to be established, the terminal information is acquired from the first terminal again, and the step S4 is executed.

6. A system for implementing fast interconnection of devices based on NFC, comprising a first terminal and a second terminal, the first terminal comprising a first processor, a first memory and a first computer program stored in the first memory and executable on the first processor, the second terminal comprising a second processor, a second memory and a computer program stored in the second memory and executable on the second processor, wherein the first processor implements the following steps when executing the first computer program:

s1, acquiring self terminal information, calling a native NFC interface according to the application request, and starting an NFC card reading function;

s3, when the approach of the second terminal is detected, the terminal information is sent to the second terminal;

the second processor, when executing the second computer program, implements the steps of:

s2, calling a native NFC interface, and starting an NFC analog card function;

s4, receiving the terminal information of the first terminal, selecting an interconnection channel according to the terminal information, and initiating an interconnection request to the first terminal to establish interconnection.

7. The system for realizing rapid interconnection of devices based on NFC according to claim 6, wherein AIDs are pre-configured on the first terminal and the second terminal;

the step S3 specifically includes:

when the second terminal is detected to be close to the first terminal, acquiring the AID of the second terminal, and checking the AID with the AID of the second terminal, and if the AID is consistent with the AID of the second terminal, sending the terminal information to the second terminal;

the step S4 specifically includes:

and detecting terminal information sent by the first terminal, acquiring AID of the first terminal and performing proofreading with the AID of the first terminal, if the AID is consistent with the AID of the first terminal, receiving the terminal information of the first terminal, selecting an interconnection channel according to the terminal information, sending an interconnection request to the first terminal, and establishing interconnection.

8. The system for realizing rapid interconnection of equipment based on NFC according to claim 6, wherein the terminal information includes current Wi-Fi information, Bluetooth information, USB port information and NFC information of the terminal;

the step S4 of selecting an interconnection path according to the terminal information specifically includes:

and selecting the optimal interconnection channel from the available interconnection channels according to a preset priority sequence according to the current Wi-Fi information, Bluetooth information, USB port information and NFC information of the first terminal.

9. The system for realizing rapid interconnection of devices based on NFC according to claim 8, wherein the priority sequence is:

USB communication > Bluetooth networking > Wi-Fi-P2P networking > Wi-Fi-AP networking > NFC networking.

10. The system according to claim 8, wherein the second processor, when executing the second computer program, further comprises, after step S4, the steps of:

and S5, judging whether the interconnection is successfully established, if the interconnection is failed to be established, re-acquiring the terminal information from the first terminal, and executing the step S4.

Images