KR101604927B1 - Automatic connection ststem and method using near field communication - Google Patents

Abstract

Disclosed are an apparatus and a method for automatically connecting to an access point (AP) using near field communication (NFC). An automatic connection method performed by a user terminal may comprise the following steps of: reading encrypted identification information and password of an access point (AP) from a NFC tag of an AP to which the user terminal is tagged; decoding the encrypted identification information and password of the AP; and connecting to a wireless network of the AP by using the identification information and password of the AP.

Description

TECHNICAL FIELD [0001] The present invention relates to an automatic connection system and method using NFC,

The present invention relates to an apparatus and method for automatically connecting to an AP using NFC.

With the spread of smart terminals, the installation of access points (APs) such as wireless routers that provide a wireless network capable of accessing smart terminals is increasing.

However, most APs restrict access to the terminal using identification information and encryption to minimize the load on the wireless network. Accordingly, in order for the user to use the wireless network of the AP, it is inconvenient to input the identification information and the password of the AP to the user terminal. For example, when a user enters a business as a guest, the user receives identification information and a password of the AP installed in the business from the owner or employee of the business and inputs it to the user terminal so that the user can use the wireless network of the AP installed in the business In fact.

Accordingly, there is a demand for a method of automatically identifying the identification information and the password and accessing the wireless network of the AP without manually inputting the identification information and the password of the user.

The present invention can provide an apparatus and method for allowing a user terminal to automatically access a wireless network of an AP by simply tagging a user terminal to the AP using NFC.

An automatic access method performed by a user terminal according to an exemplary embodiment of the present invention includes: reading the identification information and the secret number of the encrypted AP from the NFC (Near Field Communication) tag of the tagged access point; Decrypting the identification information and the password of the encrypted AP; And accessing the wireless network of the AP using the identification information and the password of the AP.

The automatic access method performed by the user terminal according to an embodiment of the present invention includes activating the NFC reader of the user terminal when the user terminal contacts the AP in a state in which the NFC reader of the user terminal is inactive .

The user terminal of the automatic access method performed by the user terminal according to an embodiment of the present invention may include identification information for decrypting the encrypted AP and decryption information for decrypting the password.

The automatic connection method performed by the user terminal according to an embodiment of the present invention may further include a step of authenticating the user terminal in the AP through the wireless network.

An automatic access method performed by an AP according to an embodiment of the present invention includes: receiving identification information and a password of an AP from a user terminal tagging an NFC tag of the AP; And accepting a connection of the user terminal to the wireless network of the AP according to the identification information and the password of the AP, wherein the user terminal identifies the encrypted AP in the NFC tag of the AP, Reads the secret number, decrypts the identification information and the secret number of the encrypted AP, and transmits the decrypted identification information and the secret number to the AP.

According to an embodiment of the present invention, an automatic access method performed by an AP comprises: receiving identification information and a password of the AP from an administrator terminal of the AP; Encrypting the identification information and the password of the AP; And storing the identification information and the secret number of the encrypted AP in the NFC tag of the AP.

The step of receiving the password of the automatic connection method performed by the AP according to an embodiment of the present invention includes: authenticating an administrator terminal connected to the AP using a predetermined key; And receiving the identification information and the password of the AP from the authorized administrator terminal.

The automatic connection method performed by the AP according to an exemplary embodiment of the present invention may further include authenticating the user terminal according to a request from the user terminal connected to the wireless network.

The user terminal performing the automatic access method according to an embodiment of the present invention includes: an NFC reader for reading the identification information and the password of the encrypted AP from the NFC tag of the tagged AP; A processor for decrypting the identification information and the password of the encrypted AP; And a communicator for accessing the wireless network of the AP using the identification information and the password of the AP.

The processor of the user terminal performing the automatic connection method according to an embodiment of the present invention may be configured to activate the NFC reader of the user terminal when the user terminal makes contact with the AP in a state in which the NFC reader of the user terminal is inactivated can do.

The communicator of the user terminal performing the automatic connection method according to an embodiment of the present invention can authenticate the user terminal in the AP through the wireless network.

The AP apparatus performing the automatic access method according to an embodiment of the present invention receives the identification information and the password of the AP from the user terminal tagging the NFC tag of the AP, And a wireless network manager for approving the connection of the user terminal to the wireless network of the AP, wherein the user terminal reads the identification information and the password of the encrypted AP in the NFC tag of the AP, The identification information and the password of the AP can be decrypted and transmitted to the AP.

The wireless network manager of the AP device performing the automatic access method according to an embodiment of the present invention receives the identification information and the password of the AP from the administrator terminal of the AP and encrypts the identification information and the password of the AP And store the identification information and the secret number of the encrypted AP in the NFC tag of the AP.

The wireless network manager of the AP device performing the automatic connection method according to an embodiment of the present invention authenticates the administrator terminal connected to the AP by using a predetermined key and transmits the identification information of the AP and the secret Number can be received.

The wireless network manager of the AP device performing the automatic connection method according to an embodiment of the present invention can authenticate the user terminal according to a request of the user terminal connected to the wireless network.

According to an embodiment of the present invention, a user can automatically access a wireless network of an AP by tagging a user terminal to an AP using NFC.

1 is a diagram illustrating an automatic connection system according to an embodiment of the present invention.
2 is an example of information stored in an NFC tag according to an embodiment of the present invention.
3 is a diagram illustrating an automatic connection process according to an embodiment of the present invention.
4 is a diagram illustrating a process of authenticating a user terminal connected to an AP according to FIG.
5 is a flowchart illustrating an automatic connection method according to an embodiment of the present invention.
6 is a flowchart illustrating identification information and a password input method according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The automatic connection method according to an embodiment of the present invention can be performed by an access point (AP) included in the automatic connection system.

1 is a diagram illustrating an automatic connection system according to an embodiment of the present invention.

Referring to FIG. 1, an automatic connection system according to an exemplary embodiment of the present invention may include a user terminal 110 and an access point (AP) 120.

The user terminal 110 may include an NFC reader 111, a processor 112, and a communicator 113, as shown in FIG.

The NFC (Near Field Communication) reader 111 can read the identification information and the password of the encrypted AP from the NFC tag 121 of the tagged AP 120 by the user terminal 110.

The processor 112 may decrypt the identification information and the password of the encrypted AP that the NFC reader 111 has read. At this time, the database or the storage medium of the user terminal 110 may include decryption information for decrypting the identification information and the password of the encrypted AP. The processor 112 may load the decryption information in the database or the storage medium of the user terminal 110 to decrypt the identification information and the password of the encrypted AP.

The processor 112 may activate the NFC reader 111 when the user terminal 110 contacts the AP 120 while the NFC reader 110 is deactivated.

The communicator 113 can access the wireless network of the AP 120 using the identification information and the password of the AP decrypted by the processor 112. [ The communicator 113 can perform wireless communication between the AP 120 and the user terminal 110 through the wireless network of the AP 120. [

Specifically, the communicator 113 can search for Wifi using the identification information and the password of the AP decrypted by the processor 112. [ If there is a Wifi searched, the communicator 113 can access the searched Wifi. Next, the communicator 113 can extract a gateway through the connected Wifi. The communicator 113 can perform wireless communication between the AP 120 and the user terminal 110 through the extracted gateway.

In addition, the communicator 113 can authenticate the user terminal 110 in the AP 120 through the wireless network of the AP 120. [

For example, the communicator 113 may log in a SAR (Service Authentication Request / Response) to the AP 120 using the default ID. When the communicator 113 transmits a SAR command to the AP 120, the SAR command includes a phone number of the user terminal 110, a universally unique identifier (UUID) A device address (ap mac address) of the AP 120, and identification information (reg id) of the resist.

In addition, when the communicator 113 receives a Success signal from the AP 120 for a SAR command, the processor 112 may perform provisioning and automatic authentication.

At this time, the user terminal 110 may be provided with an application for controlling the operation of the processor 112 and the communicator 113.

The AP 120 may include an NFC tag 121, and a wireless network manager 123 as shown in FIG. At this time, the AP 120 may be one of devices providing a wireless network to which the user terminal 110 can access. For example, the AP 120 may be a wireless router installed in a home or a company, or a set-top box having a built-in wireless AP function.

The NFC tag 121 may store the identification information and the password of the encrypted AP. At this time, the NFC reader 111 of the user terminal 110 tagging the NFC tag 121 can read the identification information and the secret number of the encrypted AP in the NFC tag 121.

The wireless network manager 123 can configure and manage a wireless network to which the user terminal 110 located within a certain distance from the AP 120 can access.

At this time, the wireless network manager 123 can receive the identification information and the password of the AP decrypted by the processor 112 from the communicator 113 of the user terminal 110 tagging the NFC tag 121. The wireless network manager 123 can approve the connection of the user terminal 110 to the wireless network of the AP 120 according to the identification information and the password of the received AP.

 In addition, the wireless network manager 123 may store the identification information and the password of the AP received from the administrator terminal of the administrator managing the AP 120 in the NFC tag 121. [ Specifically, the wireless network manager 123 can receive the identification information and the password of the AP from the administrator terminal. Then, the wireless network manager 123 can encrypt the identification information and the password of the received AP. Finally, the wireless network manager 123 may store the identification information and the secret number of the encrypted AP in the NFC tag 121. [

At this time, the wireless network manager 123 can authenticate the administrator terminal only when the administrator terminal accesses the AP using the preset key, and can receive the identification information and the password of the AP from the authenticated administrator terminal. For example, the wireless network manager 123 may set 753159 to a key that can modify or input the identification information and the password of the AP. When the manager attempts to make a call after entering 753159 by using the basic dial in the manager terminal, the radio network manager 123 determines that the manager terminal accesses the AP using the predetermined key, can do.

In response to a request from the user terminal 110 connected to the wireless network of the AP 120, the wireless network manager 123 notifies the user terminal 110 of services that the AP 120 can provide to the user terminal 110 ) Can be authenticated.

The AP 120 may provide a service such as a mobile phone call, a CCTV screen, or a CCTV service to the user terminal 110 connected to the wireless network of the AP 120. At this time, the wireless network manager 123 authenticates the user terminal 110 with respect to the service that the AP 120 can provide to the user terminal 110, so that the user can access the AP 120 through the user terminal 110 And provide the service provided.

For example, the wireless network manager 123 may receive a signal from the communicator 113 of the user terminal 110 requesting authentication of the user terminal 110 for use of the service.

At this time, the wireless network manager 120 can authenticate the user terminal 110 to the service provided by the AP 120 using the identification information of the user terminal 110 included in the received signal. The wireless network manager 123 may transmit the result of authenticating the user terminal 110 to the service provided by the AP 120 as a response signal to the communicator 113 of the user terminal 110.

When receiving a signal requesting registration of the user terminal 110 from the communicator 113 of the user terminal 110 to the service provided by the AP 120, the wireless network manager 123 transmits the request to the user terminal 110, The mobile station can transmit a success signal to the mobile station.

At this time, the wireless network manager 123 performs provisioning and automatic authentication with the communicator of the user terminal 110, registers the user terminal 110 as an object of a service provided by the AP 120, The user terminal 110 can be authenticated.

When the user tags the user terminal 110 to the AP 120, the user terminal 110 transmits the identification information of the AP 120 and the secret information of the AP 120 in the NFC tag 121 of the AP 120, You can read the number. Then, the user terminal 110 can automatically access the wireless network of the AP 120 using the read identification information and the password.

That is, the automatic connection system according to the present invention can allow the user terminal 110 to automatically access the wireless network of the AP 120 only by tagging the user terminal 110 to the AP 120 using the NFC have.

2 is an example of information stored in an NFC tag according to an embodiment of the present invention.

The NFC tag 121 may store an NDEF (NFC Data Exchange Format) message as shown in FIG. At this time, the NDEF message may include at least one NDEF record (Record) 200.

In addition, the NDEF record 200 can be configured as shown in Table 1. At this time, the identification information and the password of the encrypted AP 120 may be included in the payload in which the record is stored.

The record header of the NDEF record 200 can be configured as shown in Table 2. [

3 is a diagram illustrating an automatic connection process according to an embodiment of the present invention.

At step 310, the user terminal 110 may be tagged to the NFC tag 121 of the AP 120 by the user. At this time, the user terminal 110 can read the identification information and the password of the encrypted AP from the NFC tag 121 using the NFC reader 111. [

The processor 112 may activate the NFC reader 111 when the user terminal 110 contacts the AP 120 while the NFC reader 110 is deactivated. The activated NFC reader 111 may read the identification information and the password of the encrypted AP from the NFC tag 121 of the tagged AP 120 by the user terminal 110.

In step 320, the user terminal 110 may decrypt the identification information and the password of the encrypted AP that was read in step 310. [

The user terminal 110 may transmit the identification information and the secret number of the AP decrypted in step 320 to the AP 120 in step 330.

In step 340, the AP 120 may approve the connection of the user terminal 110 to the wireless network of the AP 120 according to the identification information and the password of the AP received in step 330.

4 is a diagram illustrating a process of authenticating a user terminal connected to an AP according to FIG.

The AP 120 may provide a service such as a mobile phone call, a CCTV screen, or a CCTV service to the user terminal 110 connected to the wireless network of the AP 120. At this time, the wireless network manager 123 of the AP 120 authenticates the user terminal 110 with respect to a service that the AP 120 can provide to the user terminal 110, The service provided by the AP 120 can be provided.

The user terminal 110 may transmit a signal for requesting the authentication of the user terminal 110 for use of the service to the AP 120 using the default identification information of the user terminal 110 in step 410. [ For example, the user terminal 110 may send a SAR login request signal to the AP 120. [

In step 420, the AP 120 may authenticate the user terminal 110 to the service provided by the AP 120 using the default identification information included in the signal received in step 410. The AP 120 can transmit a result of authenticating the user terminal 110 to the service provided by the AP 120 as a response signal to the user terminal 110. For example, the AP 120 performs SAR logging on the user terminal 110 according to the SAR login request signal received in step 410, and transmits an SAR login response signal to the user terminal 110, (110).

The user terminal 110 may transmit a signal requesting the AP 120 to register the user terminal 110 in the service provided by the AP 120 in step 430. For example, the user terminal 110 may send a SAR command to the AP 120. At this time, the SAR command includes at least one of a phone number of the user terminal 110, a MAC address of the user terminal 110, a device address (ap mac address) of the AP 120, and regid .

In step 440, the AP 120 may transmit a success signal to the user terminal 110 according to the request signal received in step 430.

At step 450, the user terminal 110 may perform provisioning and automatic authentication according to the success signal received at step 440. [ At this time, the AP 120 performs the provisioning and automatic authentication process with the user terminal 110, registers the user terminal 110 as a service target provided by the AP 120, and authenticates the user terminal 110 .

5 is a flowchart illustrating an automatic connection method according to an embodiment of the present invention.

The NFC reader 111 of the user terminal 110 in step 510 may read the identification information and the password of the encrypted AP from the NFC tag 121 of the tagged AP 120 by the user terminal 110 .

At step 520, the processor 112 may decrypt the identity and password of the encrypted AP that was read at step 510. [ At this time, the processor 112 may load the decryption information in the database or the storage medium of the user terminal 110 to decrypt the identification information and the password of the encrypted AP. The processor 112 may activate the NFC reader 111 when the user terminal 110 contacts the AP 120 while the NFC reader 110 is deactivated.

In step 530, the communicator 113 can access the wireless network of the AP 120 using the identification information and the password of the AP decrypted in step 520. [ The communicator 113 can perform wireless communication between the AP 120 and the user terminal 110 through the wireless network of the AP 120. [

Specifically, the communicator 113 can search for Wifi using the identification information and the password of the AP decrypted by the processor 112. [ If there is a Wifi searched, the communicator 113 can access the searched Wifi. Next, the communicator 113 can extract a gateway through the connected Wifi. The communicator 113 can perform wireless communication between the AP 120 and the user terminal 110 through the extracted gateway.

6 is a flowchart illustrating identification information and a password input method according to an embodiment of the present invention.

In step 610, the wireless network manager 123 can confirm whether or not the password management mode is executed. Specifically, when the administrator terminal accesses the AP using the predetermined key, the wireless network manager 123 can authenticate the administrator terminal and determine that the password management mode is executed. When the password management mode is executed, the wireless network manager 123 may perform step 620. [ In addition, when the password management mode is not executed, the wireless network manager 123 may wait until the administrator terminal accesses the AP using the predetermined key while repeating the step 610. [

In step 620, the wireless network manager 123 may execute the password management mode. Specifically, the wireless network manager 123 can receive the identification information and the password of the AP from the administrator terminal.

In step 630, the wireless network manager 123 may encrypt the identification information and the secret number of the AP received in step 620.

In step 640, the wireless network manager 123 may store the identification information and the secret number of the encrypted AP in the NFC tag 121 in step 630.

When the user tags the user terminal 110 in the AP 120, the user terminal 110 reads the identification information and the password of the AP 120 in the NFC tag 121 of the AP 120 . Then, the user terminal 110 can automatically access the wireless network of the AP 120 using the read identification information and the password.

That is, the automatic connection system according to the present invention can allow the user terminal 110 to automatically access the wireless network of the AP 120 only by tagging the user terminal 110 to the AP 120 using the NFC have.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

110: User terminal
120: AP

Claims (15)

An automatic connection method performed by a user terminal,
Reading the identification information and the password of the encrypted AP from the NFC (Near Field Communication) tag of the tagged access point;
Decrypting the identification information and the password of the encrypted AP;
Accessing the wireless network of the AP using the identification information and the password of the AP; And
Requesting authentication of the user terminal for use of the service to the AP through the wireless network
Lt; / RTI >
The AP,
Authenticating the administrator terminal connected to the AP with a key capable of modifying or identifying the AP's identification information and password, encrypting the identification information and the password of the AP received from the authenticated administrator terminal and storing the encrypted identification information and the password in the NFC tag,
And providing the service provided by the AP to the user terminal when the user terminal requesting authentication is registered as an object of the service provided by the AP. The method according to claim 1,
Activating an NFC reader of the user terminal when the user terminal contacts the AP in a state in which the NFC reader of the user terminal is inactive;
/ RTI > The method according to claim 1,
The user terminal comprises:
And decryption information for decrypting the identification information and the password of the encrypted AP. delete In the automatic access method performed by the AP,
Authenticating the administrator terminal when the administrator terminal accesses the AP with a key that allows modification or input of the identification information and the password of the AP;
Receiving identification information and a password of an AP from an authorized administrator terminal;
Encrypting the identification information and the password of the received AP and storing the same in the NFC tag of the AP;
Receiving identification information and a password of an AP from a user terminal tagging an NFC tag of the AP;
Authorizing access of the user terminal to the wireless network of the AP according to the identification information and the password of the AP received from the user terminal;
Receiving a request for authentication of the user terminal for use of the service from the user terminal connected to the wireless network; And
Providing a service provided by the AP to the user terminal if the user terminal requesting authentication is registered as an object of the service provided by the AP;
Lt; / RTI >
The user terminal comprises:
Reading the identification information and the password of the AP encrypted in the NFC tag of the AP, decrypting the identification information and the password of the encrypted AP, and transmitting the decrypted identification information and the password to the AP. delete delete delete In a user terminal performing an automatic connection method,
An NFC reader for reading the identification information and the secret number of the encrypted AP from the NFC tag of the tagged AP;
A processor for decrypting the identification information and the password of the encrypted AP; And
A communication unit for accessing the wireless network of the AP by using the identification information and the password of the AP and for requesting the AP to authenticate the user terminal for use of the service through the wireless network;
Lt; / RTI >
The AP,
Authenticating the administrator terminal connected to the AP with a key capable of modifying or inputting the identification information and the password of the AP, encrypting the identification information and the password of the AP received from the authenticated administrator terminal and storing the same in the NFC tag,
And providing the service provided by the AP to the user terminal when the user terminal requesting authentication is registered as an object of the service provided by the AP. 10. The method of claim 9,
The processor comprising:
And activates the NFC reader of the user terminal when the user terminal contacts the AP in a state where the NFC reader of the user terminal is inactivated. delete An AP apparatus for performing an automatic connection method,
A wireless network manager for receiving the identification information and the password of the AP from the user terminal tagged with the NFC tag of the AP and approving the connection of the user terminal to the wireless network of the AP according to the identification information and the password of the AP,
Lt; / RTI >
The user terminal comprises:
Reads the identification information and the secret number of the encrypted AP in the NFC tag of the AP, decrypts the identification information and the secret number of the encrypted AP, and transmits the decrypted identification information and the secret number to the AP,
The wireless network manager includes:
Authenticating the administrator terminal connected to the AP with a key capable of modifying or inputting the identification information and the password of the AP, encrypting the identification information and the password of the AP received from the authenticated administrator terminal, storing the encrypted identification information and the password in the NFC tag,
When the user terminal requesting authentication of the user terminal for use of the service from the user terminal connected to the wireless network is registered as a service target of the service provided by the AP, An AP device that provides a service to provide. delete delete delete

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