JP6892130B2 - Wireless LAN system and wireless client terminal connection method - Google Patents

Description

The present invention relates to a wireless LAN system, a wireless client terminal connection method, and a wireless client terminal connection program, and in particular, a wireless setting capable of wireless setting using any of a plurality of wireless setting information, such as a wireless LAN router. The present invention relates to a wireless LAN system in which a wireless access point having a function is installed, a wireless client terminal connection method, and a wireless client terminal connection program.

In wireless devices of the current technology, it is usually possible to use RFID tags that set RFID (Radio Frequency Identifier) information for short-range wireless communication. However, in the current wireless device, the RFID information once set is fixed as an embedded value and cannot be rewritten.

As an example, as a wireless device, a wireless client terminal used by wirelessly connecting (Wi-Fi connection) to a wireless access point which is a master unit of a wireless LAN (Local Area Network) is assumed. As the wireless client terminal, for example, "method for maintaining connection between wireless LAN access point and wireless terminal" described in Japanese Patent Application Laid-Open No. 2012-105213 of Patent Document 1 can be mentioned. In this type of wireless client terminal, the wireless setting information for connecting to the wireless access point is usually set in the RFID tag as RFID information. Therefore, as described in Patent Document 1 and the like, when the wireless setting information (SSID (Service Set Identifier), encrypted password, etc.) of the wireless access point is changed from the initial value, the initial value is changed. It became impossible to wirelessly connect the wireless client terminal to the changed wireless access point by using the RFID information used in the wireless setting as it is, which impaired the convenience of the wireless client terminal.

Further, the wireless access point generally has two wireless setting information, that is, the administrator connection wireless setting information and the guest connection wireless setting information. However, in the current RFID tag, as described above, it is impossible to rewrite the RFID information once set, so that a wireless client terminal having only one RFID information for wireless setting can be connected. The wireless setting status of the wireless access point is fixed. Therefore, it is possible to connect only when one of the administrator connection wireless setting and the guest connection wireless setting is set, and it is not possible to connect when the other wireless setting is made. It ends up.

A wireless client terminal that has only one RFID information for wireless setting in the RFID tag, and a wireless access point that has two wireless setting information, that is, the wireless setting information for administrator connection and the wireless setting information for guest connection. The specific configuration of the wireless LAN system in the current technology including the above will be further described with reference to FIG. FIG. 5 is a configuration diagram showing an example of a specific configuration of a wireless LAN system in the current technology.

In the wireless LAN system 100A shown in FIG. 5, the wireless client terminal 2A on the slave unit side connected to the wireless access point 1A of the master unit by Wi-Fi (wireless connection) may perform short-range wireless communication with the RFID tag 3A. Arranged in a possible state. Then, the wireless access point 1A wirelessly connects and wirelessly connects the wireless setting information 10A (SSID, encrypted password, etc.) for connecting the wireless client terminal 2A on the slave unit side to Wi-Fi, and the wireless client terminal 2A. It has a wireless communication unit 11A for communicating with the user. Here, as the wireless setting information 10A, for example, it has two wireless setting information, that is, the first wireless setting information 10Aa and the second wireless setting information 10Ab. The two wireless setting information are information having different contents from each other. For example, the first connection wireless setting information 10Aa is the administrator connection wireless setting information, and the second connection wireless setting information 10Ab is. , Wireless setting information for guest connection.

Further, the wireless client terminal 2A performs wireless communication and wireless communication between the application 20A that acquires desired information by performing short-range wireless communication with the RFID tag 3A and the wireless access point 1A. It has a part 21A and. Here, the application 20A acquires the wireless setting information 30A fixedly written on the RFID tag 3A, that is, the wireless setting information 30A for Wi-Fi connection with the wireless access point 1A.

Further, the RFID tag 3A writes the wireless setting information 30A, which is the connection information with the wireless access point 1A, as the RFID information regarding the wireless client terminal 2A. One of the wireless setting information is set. In FIG. 5, the wireless setting information is the first connection wireless setting information 30Aa, which is the same information as the setting content of the first connection wireless setting information 10Aa in the wireless access point 1A.

Next, the operation of the wireless LAN system 100A of FIG. 5 will be described. In the wireless LAN system 100A of FIG. 5, when the wireless client terminal 2A attempts to perform wireless communication with the wireless access point 1A, the application 20A of the wireless client terminal 2A first causes the wireless client terminal 2A to communicate with the RFID tag 3A. Short-range wireless communication is performed to acquire the first connection wireless setting information 30Aa set in the RFID tag 3A.

After that, the wireless client terminal 2A transmits the read wireless setting information 30Aa for the first connection to the wireless access point 1A by the wireless communication unit 21A, and attempts a wireless connection (Wi-Fi connection) to the wireless access point 1A. .. When the wireless access point 1A receives the first connection wireless setting information 30Aa transmitted from the wireless client terminal 2A, the wireless access point 1A sets the wireless setting information 30A held by the own wireless access point 1A at the present time. It is confirmed whether or not the wireless setting information used is the same information as the first connection wireless setting information 30Aa received from the wireless client terminal 2A.

When the wireless access point 1A is the first wireless setting information 10Aa consisting of the same information as the received first wireless setting information 30Aa for the wireless setting information set and used at the present time. Allows wireless connection (Wi-Fi connection) from the wireless client terminal 2A. As a result, the wireless client terminal 2A makes a Wi-Fi connection with the wireless access point using the first connection wireless setting information 30Aa (that is, the first connection wireless setting information 10Aa on the wireless access point 1A side). Wireless settings can be made with, and Wi-Fi communication can be performed with the wireless access point.

However, when the wireless client terminal 2A requests the wireless access point 1A for a Wi-Fi connection, the wireless setting information currently set and used by the wireless access point 1A is the wireless for the first connection. In some cases, the setting is changed to the second connection wireless setting information 10Ab instead of the setting information 10Aa. In such a case, even if the wireless client terminal 2A attempts a Wi-Fi connection (wireless connection) to the wireless access point 1A using the first connection wireless setting information 30Aa, the wireless access point 1A is currently available. The wireless setting information that has been set and used is different from the received wireless setting information 30Aa for the first connection.

Therefore, the wireless access point 1A does not allow the wireless connection (Wi-Fi connection) request from the wireless client terminal 2A. As a result, the wireless client terminal 2A is connected to the wireless access point even if the first wireless setting information 30Aa written on the RFID tag 3A for the Wi-Fi connection with the wireless access point 1 is used. Wi-Fi connection cannot be made with.

Further, not only when the wireless setting information currently set and used in the wireless access point 1A is changed from the first connection wireless setting information 10Aa, but also as the wireless setting information currently used. The same applies to the case where the second connection wireless setting information 10Ab is set, and the wireless client terminal 2A makes a Wi-Fi connection to the wireless access point 1A using the first connection wireless setting information 30Aa. You can't do it.

Japanese Unexamined Patent Publication No. 2012-105213

As described above, in the current technology related to the present invention, there are the following problems to be solved.

That is, the RFID information is unique information that cannot be rewritten, and there is a problem to be solved that the RFID information cannot be rewritten after writing.

That is, "in a wireless client terminal in which the wireless setting information set as the initial value for Wi-Fi connection (wireless connection) to the wireless access point of the wireless LAN is written in the RFID tag, the information of the RFID tag is used. When connecting to a wireless access point by Wi-Fi, in the current technology, if the wireless setting (SSID, encrypted password, etc.) of the wireless access point is changed from the initial value, the wireless client terminal will be attached to the RFID tag. Since the written information cannot be changed, it becomes impossible to make a wireless connection to the wireless access point.

Further, the wireless access point generally has two wireless setting information, that is, the wireless setting information for administrator connection and the wireless setting information for guest connection, but as described above, the Wi with the wireless access point -A problem to be solved that a wireless client terminal that uses RFID information as wireless setting information for Fi connection can connect only when the wireless setting information of one of the wireless access points is set. There is also.

(Purpose of this development)
In view of these issues, the purpose of this development is to write wireless setting information for Wi-Fi connection (wireless connection) with a wireless access point to an RFID tag and use the wireless access point even if it is a wireless client terminal. A wireless LAN system, a wireless client terminal connection method, and a wireless client terminal connection program that can reliably make a Wi-Fi connection (wireless connection) with the wireless access point regardless of whether or not the wireless setting information used by the user is changed. Is in the offer.

In order to solve the above-mentioned problems, the wireless LAN system, the wireless client terminal connection method, and the wireless client terminal connection program according to the present invention mainly adopt the following characteristic configurations.

(1) The wireless LAN system according to the present invention is
Wirelessly connect between the wireless access point and the wireless client terminal
The wireless access point is
Temporary connection wireless setting information for temporary connection with the wireless client terminal, and
The wireless setting information for main connection for main connection with the wireless client terminal, and
Means for wireless communication with the wireless client terminal and
Have,
On the other hand, the wireless client terminal is
A means for reading the temporary connection wireless setting information from the RFID tag in which the temporary connection wireless setting information is written, and a means for reading the temporary connection wireless setting information.
Means for wireless communication with the wireless access point,
Have,
The wireless client terminal is
When making a wireless connection with the wireless access point, the temporary connection wireless setting information is read from the RFID tag, and a predetermined element bit is further added as information indicating that the temporary connection request is made for temporary connection. By transmitting to the wireless access point as a wireless setting request (association request), a temporary connection is made with the wireless access point.
After that, by transmitting the temporary connection wireless setting request (association request) to the wireless access point using the wireless setting information for the main connection returned from the wireless access point that is temporarily connected. , The main connection with the wireless access point,
It is characterized by that.

(2) The wireless client terminal connection method according to the present invention is
Wirelessly connect a wireless client terminal to a wireless access point in a wireless LAN system
The wireless access point is
Temporary connection wireless setting information for temporary connection with the wireless client terminal, and
The wireless setting information for main connection for main connection with the wireless client terminal, and
And the steps to hold
The step of performing wireless communication with the wireless client terminal,
Have,
On the other hand, the wireless client terminal is
A step of reading the temporary connection wireless setting information from the RFID tag in which the temporary connection wireless setting information is written, and
Steps to perform wireless communication with the wireless access point,
Have,
The wireless client terminal is
When making a wireless connection with the wireless access point, the temporary connection wireless setting information is read from the RFID tag, and a predetermined element bit is further added as information indicating that the temporary connection request is made for temporary connection. By transmitting to the wireless access point as a wireless setting request (association request), a temporary connection is made with the wireless access point.
After that, by transmitting the temporary connection wireless setting request (association request) to the wireless access point using the wireless setting information for the main connection returned from the wireless access point that is temporarily connected. , The main connection with the wireless access point,
It is characterized by that.

(3) The wireless client terminal connection program according to the present invention is
In a wireless LAN system, a computer executes the process of wirelessly connecting a wireless client terminal to a wireless access point.
The processing in the wireless client terminal is
A function to receive the wireless setting information for main connection for main connection with the own wireless client terminal transmitted from the wireless access point, and
A function to read the temporary connection wireless setting information from the RFID tag in which the temporary connection wireless setting information for temporary connection with the wireless access point is written, and
A function for wireless communication with the wireless access point and
Have,
The processing in the wireless client terminal is
When making a wireless connection with the wireless access point, the temporary connection wireless setting information is read from the RFID tag, and a predetermined element bit is further added as information indicating that the temporary connection request is made for temporary connection. A function of temporarily connecting to the wireless access point by transmitting it as a wireless setting request (association request) to the wireless access point, and
After that, when the wireless setting information for main connection for main connection with the own wireless client terminal is returned from the wireless access point that is temporarily connected, the wireless setting information for main connection is used to describe the above. A function for main connection with the wireless access point by transmitting a wireless setting request (association request) for the temporary connection to the wireless access point, and
Have,
It is characterized by that.

According to the wireless LAN system, the wireless client terminal connection method, and the wireless client terminal connection program of the present invention, in the wireless LAN system, the wireless client terminal temporarily connects to the wireless access point to provide wireless setting information for the present connection. Since it has a mechanism for performing a two-stage Wi-Fi connection (wireless connection) of acquiring and performing the main connection, the following effects can be mainly achieved.

The first effect is that even when the wireless setting is changed on the wireless access point, the wireless client terminal uses the RFID tag on which the same wireless setting information is written as it is, and communicates with the wireless access point. It is possible to set a Wi-Fi connection (wireless connection) for this connection and perform wireless communication.

The second effect is that the wireless client terminal uses the RFID tag in which the same wireless setting information is written as it is for any of the wireless setting information of the plurality of wireless setting information possessed by the wireless access point. , A Wi-Fi connection (wireless connection) with a wireless access point can be set for this connection to perform wireless communication.

It is a block diagram which shows an example of the specific structure of the wireless LAN system which concerns on this invention. It is a sequence chart which shows an example of the first half part of the signal flow in the wireless LAN system shown in FIG. It is a sequence chart which shows an example of the signal flow of the latter half part following FIG. 2 in the wireless LAN system shown in FIG. It is the first half part of the sequence chart which shows an example different from FIG. 2 and FIG. 3 of the signal flow in the wireless LAN system shown in FIG. This is the latter half of the sequence chart showing an example different from FIGS. 2 and 3 in the signal flow in the wireless LAN system shown in FIG. It is a block diagram which shows an example of the specific configuration of the wireless LAN system in the present technology.

Hereinafter, a preferred embodiment of the wireless LAN system, the wireless client terminal connection method, and the wireless client terminal connection program according to the present invention will be described with reference to the attached drawings. In the following description, the wireless LAN system and the wireless client terminal connection method according to the present invention will be described, but the wireless client terminal connection method may be implemented as a wireless client terminal connection program that can be executed by a computer. However, it goes without saying that the wireless client terminal connection program may be recorded on a computer-readable recording medium. Further, it is needless to say that the drawing reference reference numerals attached to the following drawings are added to each element for convenience as an example for assisting understanding, and the present invention is not intended to be limited to the illustrated embodiment. No.

(Features of the present invention)
Prior to the description of the embodiments of the present invention, an outline of the features of the present invention will be described first. In the present invention, in the wireless LAN system, even if the wireless client terminal uses a non-rewritable RFID tag as a medium for writing wireless connection information connected to the wireless access point, it is temporarily connected to the wireless access point. After that, the main feature is to make a main connection with the wireless access point based on the information for the main connection acquired from the wireless access point.

That is, the wireless setting information for temporary connection of the wireless access point is written in advance as the wireless setting information in the RFID tag that performs short-range wireless communication with the wireless client terminal, and the wireless client terminal is connected to the wireless access point by Wi-Fi. The wireless client terminal reads the temporary connection wireless setting information written in the RFID tag, and first temporarily connects to the wireless access point. Then, after the temporary connection, the wireless access point connects the wireless client terminal to the wireless access point by transmitting the wireless setting information for the main connection to the temporarily connected wireless client terminal. , Is a main feature of the present invention.

The features of the present invention will be further described as follows. By embedding unique wireless setting information for temporary connection in the RFID tag in advance and setting the wireless setting for this connection to be used in actual communication, the wireless setting information for temporary connection is used to wirelessly connect with the wireless client terminal. Make a temporary connection with the access point. After that, by transmitting the wireless setting information for the main connection from the wireless access point to the wireless client terminal, the wireless client terminal uses the wireless setting information for the main connection from the wireless access point to and the wireless access point. The main feature is to make this connection.

Therefore, even if the wireless access point has a plurality of wireless setting information, the wireless client terminal that makes a Wi-Fi connection (wireless connection) to the wireless access point has the wireless setting used by the wireless access point. Regardless of whether or not the information setting is changed, the main connection with the wireless access point can be reliably performed by using the RFID tag in which the same wireless setting information is written as the temporary connection wireless setting information. That is, even if the wireless access point changes the wireless setting information currently used, by making a temporary connection with the wireless access point in the previous stage, the wireless client terminal can set the wireless setting of the wireless access point. The settings for this connection can be changed according to the change, and even if an RFID tag in which only one wireless setting information is embedded is used, a Wi-Fi connection (wireless connection) is ensured with the wireless access point. be able to.

Furthermore, the present invention also has the following features. That is, when a temporary connection is made to and from a wireless access point, a temporary connection wireless setting request (association request) to be transmitted to the wireless access point by the wireless client terminal as a wireless signal for the wireless connection request is determined in advance. In the specific area, a predetermined element bit is set as information indicating that the temporary connection request is made (in other words, as information indicating the selection of the wireless setting information for main connection for carrying out the main connection after the temporary connection). Add.

Then, in the wireless access point that has received the temporary connection wireless setting request (association request: Association Request), it is analyzed whether or not the element bit is added, and if it is added, the connection request is made. It is also a main feature of the present invention that the wireless setting information for this connection with the original wireless client terminal is acquired by referring to the wireless setting information preset as the selected wireless setting information in the own wireless access point. one of.

Therefore, the corresponding wireless setting information from the plurality of wireless profiles is selected for wireless connection with the wireless client terminal of the connection request source for this connection and set as the own wireless access point. It can be transmitted to the wireless client terminal. That is, even when the wireless access point has a plurality of wireless setting information, the user of the wireless client terminal makes an arbitrary wireless setting that enables connection to the wireless access point, and the wireless access point. Can be connected to.

(Structure Example of Embodiment of this Invention)
Next, a configuration example of the wireless LAN system according to the present invention will be described in detail with reference to FIG. FIG. 1 is a configuration diagram showing an example of a specific configuration of the wireless LAN system according to the present invention.

In the wireless LAN system 100 shown in FIG. 1, as in the case of the wireless LAN system 100A shown as the current technology in FIG. 5, the wireless client on the slave unit side connected to the wireless access point 1 of the master unit by Wi-Fi. The terminal 2 is arranged in a state capable of performing short-range wireless communication with the RFID tag 3. The wireless access point 1 includes wireless setting information 10 (SSID, encrypted password, etc.) for connecting the wireless client terminal 2 on the slave unit side to Wi-Fi, a wireless communication unit 11, a wireless setting selection execution determination unit 12, and wireless. It has a setting information selection unit 13. Here, the wireless setting information 10 includes, for example, the temporary connection wireless in addition to the two wireless setting information for the main connection of the first connection wireless setting information 10a and the second connection wireless setting information 10b. It further has setting information 10c and setting information 10d for wireless selection.

The wireless communication unit 11 has a function of performing wireless connection and wireless communication with the wireless client terminal 2 as in the case of the wireless LAN system 100A shown as the current technology in FIG.

Further, the wireless setting selection execution determination unit 12 responds to the temporary connection wireless setting request (association request) transmitted as a wireless signal for the wireless connection request from the wireless client terminal 2 with the wireless setting information of the RFID tag 3. In addition to 30 (that is, temporary connection wireless setting information 30c), it is analyzed whether or not an element bit is added as information indicating that the temporary connection request is made. Then, when the element bit is added, the wireless setting information selection unit 13 is activated. The wireless setting information selection unit 13 executes the main connection wireless setting information selection process, refers to the information set in the wireless selection setting information 10d of the own wireless access point 1, and requests the temporary connection wireless setting. Select the wireless setting information specified for this connection with the wireless client terminal 2 of the source of (Association Request: Association Request), wirelessly set it to the local wireless access point 1, and set the request source. It transmits to the wireless client terminal 2.

The two wireless setting information for the main connection in the wireless setting information 10 are information having different contents from each other as in the case of the wireless LAN system 100A shown as the current technology in FIG. 5, for example, the first one. The connection wireless setting information 10a is the wireless setting information for the administrator connection, and the second connection wireless setting information 10b is the wireless setting information for the guest connection.

Further, the temporary connection wireless setting information 10c is wireless setting information used when temporarily connecting the own wireless access point 1 and the wireless client terminal 2, and only one is sufficient.

Further, the wireless selection setting information 10d is a book of which wireless setting information the user of the wireless client terminal 2 has with the own wireless client terminal 2 among the wireless setting information possessed by the wireless access point 1. Information indicating whether it is selected in advance for connection is set.

Further, the wireless client terminal 2 can perform short-range wireless communication with the RFID tag 3 and with the wireless access point 1 as in the case of the wireless client terminal 2A shown as the current technology in FIG. It has an application 20 that performs wireless connection setting processing between the two, and a wireless communication unit 21 that performs wireless connection and wireless communication with the wireless access point 1. Here, the application 20 acquires the wireless setting information 30 written and set in the RFID tag 3, that is, the wireless setting information 30 for Wi-Fi connection with the wireless access point 1.

Further, the application 20 also has the following functions, unlike the case of the application 20A shown in FIG. That is, in a predetermined specific area, for example, a data area of a temporary connection wireless setting request (association request) transmitted to the wireless access point in order to temporarily connect the local wireless client terminal 2 to the wireless access point 1. It also has a function to add a predetermined element bit as information indicating that it is a connection request (in other words, as information instructing selection of wireless setting information for main connection for performing main connection after temporary connection). ing.

Then, the wireless communication unit 21 receives the RFID tag 3 acquired in the application 20 in response to the temporary connection wireless setting request (association request) transmitted to the wireless access point 1 as a wireless signal for the wireless connection request. Along with the wireless setting information 30 of the above, the element bit further added in the application 20 is also transmitted. The element bit will be described in detail in the description of the operation of the present embodiment described later, and the detailed description here will be omitted.

Further, the RFID tag 3 writes the wireless setting information 30 which is the connection information with the wireless access point 1 of the wireless client terminal 2 as the RFID information. In addition, unlike the case of the RFID tag 3A shown as the current technology in FIG. 5, the RFID tag 3 has the wireless setting information for main connection (the first wireless setting information 10a for connection and the first wireless setting information 10a) possessed by the wireless access point 1. The temporary connection wireless setting consists of the same information as the setting content of the temporary connection wireless setting information 10c possessed by the wireless access point 1, not the same information as the setting content of either one of the two connection wireless setting information 10b). Information 30c is set.

(Explanation of operation of the embodiment of the present invention)
Next, an example of the operation of the wireless LAN system 100 shown in FIG. 1 as an embodiment of the present invention will be described in detail with reference to the sequence charts of FIGS. 2 and 3. FIG. 2 is a sequence chart showing an example of the first half of the signal flow in the wireless LAN system 100 shown in FIG. 1, and shows the signal sequence until the wireless access point 1 and the wireless client terminal 2 are temporarily connected. An example is shown. Further, FIG. 3 is a sequence chart showing an example of the signal flow in the latter half following FIG. 2 in the wireless LAN system shown in FIG. 1, in which the wireless access point 1 and the wireless client terminal 2 are temporarily connected. An example of the signal sequence from the time point to the main connection is shown.

First, using the sequence chart of FIG. 2, the signal flow until the wireless access point 1 and the wireless client terminal 2 are temporarily connected will be described.

When attempting to make a Wi-Fi connection with the wireless access point 1, the wireless client terminal 2 activates the application 20 and uses short-range wireless communication from the RFID tag 3 to provide temporary connection wireless setting information. Instruct the reading of 30c (sequence Seq1). As a result, the wireless client terminal 2 acquires the temporary connection wireless setting information 30c set in the RFID tag 3 (sequence Seq2). Here, the temporary connection wireless setting information 30c is set in the wireless setting information 10 of the wireless access point 1 as setting information for making a temporary connection regarding the wireless connection between the wireless access point 1 and the wireless client terminal 2. The information is exactly the same as the temporary connection wireless setting information 10c provided.

When the wireless client terminal 2 acquires the temporary connection wireless setting information 30c from the RFID tag 3, the wireless client terminal 2 wirelessly accesses the information related to the temporary connection authentication in order to obtain the authentication by the temporary connection wireless setting information 30c. By exchanging with the point 1, the wireless client terminal 2 and the wireless access point 1 are authenticated by the temporary connection wireless setting information (sequence Seq3). The authentication operation here may be the same as the authentication in a general wireless connection performed in a normal wireless LAN system.

When the authentication by the temporary connection wireless setting information with the wireless access point 1 is obtained, the wireless client terminal 2 receives the temporary connection wireless setting request (association request: Association Request) to which a specific element bit is added by the application 20. ) Is transmitted to the wireless access point 1 as a wireless connection request (sequence Seq4). In the present embodiment, the specific element bit is information indicating that it is a temporary connection request (in other words, information indicating selection of wireless setting information for main connection for carrying out main connection after temporary connection). ), It means that any predetermined bit in the data area of the temporary connection wireless setting request (association request: Association Request) is set to "1".

When the wireless access point 1 receives a temporary connection wireless setting request (association request: Association Request) from the wireless client terminal 2, it activates the wireless setting selection execution determination unit 12 and receives the temporary connection wireless setting request (association request). It is confirmed whether or not a specific element bit is added to the association request (Association Request) (sequence Seq5). When the wireless access point 1 determines in the wireless setting selection execution determination unit 12 that a specific element bit is added to the received temporary connection wireless setting request (association request: Association Request), the wireless access point 1 makes this connection. The wireless setting selection process for this connection for selecting the wireless setting information for this connection is executed (sequence Seq6).

In the wireless setting information selection process for this connection, the wireless access point 1 activates the wireless setting information selection unit 13 and refers to the wireless selection setting information 10d of the own wireless access point 1. Then, the wireless setting information preset for the main connection is selected for the wireless client terminal 2 that is the source of the temporary connection wireless setting request (association request: Association Request).

The wireless selection setting information 10d indicates which of the wireless setting information possessed by the wireless access point 1 by the user of the wireless client terminal 2 is designated for this connection. Information indicating that is set in advance. In the present embodiment shown in FIG. 1, the wireless setting information of one of the two wireless setting information for the main connection, that is, the wireless setting information 10a for the first connection and the wireless setting information 10b for the second connection, is used. , The user of the wireless client terminal 2 sets the wireless selection setting information 10d of the wireless access point 1 by selecting in advance as the wireless setting information for this connection.

After that, the wireless access point 1 responds to the temporary connection wireless setting request (association request) by the wireless client terminal 2 that is the source of the temporary connection wireless setting request (association request). In response to this, a temporary connection wireless setting response (association response: Association Response) is transmitted (sequence Seq7), and the Wi-Fi between the wireless access point 1 and the wireless client terminal 2 based on the temporary connection wireless setting information. Complete the connection (wireless connection).

The temporary connection wireless setting response (association response) is in a state in which the specific element bit added to the temporary connection wireless setting request (association request) is added as it is. It has become. Therefore, upon receiving the temporary connection wireless setting response (association response) with a specific element bit added, the wireless client terminal 2 shifts to the main connection wireless setting standby state transition process. (Sequence Seq8), the state waits for the wireless setting information for this connection to be transmitted from the wireless access point 1.

Next, using the sequence chart of FIG. 3, a signal flow until the wireless access point 1 in the temporary connection state and the wireless client terminal 2 are connected to each other will be described.

As described above in the sequence chart of FIG. 2, after the wireless connection between the wireless access point 1 and the wireless client terminal 2 is terminated by the temporary connection wireless setting information, the wireless client terminal 2 is set to the wireless access point 1. It is in a state of waiting for the wireless setting information for this connection to be transmitted from. In such a standby state, when moving to the sequence chart of FIG. 3, the wireless access point 1 transmits the wireless setting information for this connection to the wireless client terminal 2 (sequence Seq9A or sequence Seq9B).

Here, the wireless setting information for main connection transmitted by the wireless access point 1 is the wireless setting information for main connection selected by the wireless setting information selection unit 13 in the wireless setting information selection process for main connection in the sequence Seq6 of FIG. is there. In the present embodiment shown in FIG. 1, when the first connection radio setting information 10a is selected in the connection radio setting information selection process, the wireless access point 1 is set to the first connection radio. The setting information 10a is transmitted to the wireless client terminal 2 as the wireless setting information for this connection (sequence Seq9A). On the other hand, when the second connection wireless setting information 10b is selected in the main connection wireless setting information selection process, the wireless access point 1 uses the second connection wireless setting information 10b for the main connection wireless. It is transmitted to the wireless client terminal 2 as setting information (sequence Seq9B).

Upon receiving the wireless setting information for the main connection transmitted from the wireless access point 1, the wireless client terminal 2 uses the received wireless setting information for the connection to perform the authentication for the main connection to the wireless access point. It is carried out between 1 and (Sequence Seq10). As for the authentication operation here, as in the case of the temporary connection authentication in the sequence Seq3 of FIG. 2, the authentication in the general wireless connection carried out in the normal wireless LAN system is also performed. ) Can be the same.

Then, when mutual authentication is obtained, the wireless client terminal 2 transmits the wireless setting request for main connection (association request: Association Request) to the wireless access point 1 using the wireless setting information for this connection (association request). Sequence Seq11). As a result, the wireless access point 1 resets the wireless connection state with the wireless client terminal 2 of the transmission source from the temporary connection state to the main connection state. Since the wireless setting request for main connection (association request: Association Request) here is for this connection, the wireless setting request for temporary connection (association request: Association Request) in the sequence Seq4 of FIG. 2 Unlike the case, it does not need to add a specific element bit, and may be the same as a general wireless connection implemented in a normal wireless LAN system.

After that, the wireless access point 1 sends a wireless setting response for this connection (association response) to the wireless client terminal 2 that is the source of the wireless setting request for this connection (association request: Association Request). By transmitting (sequence Seq12), the Wi-Fi connection (wireless connection) operation between the wireless access point 1 and the wireless client terminal 2 based on the wireless setting information for this connection is completed.

(Explanation of the effect of the embodiment of the present invention)
As described in detail above, in the present embodiment, in the wireless LAN system 100, the wireless client terminal 2 acquires the wireless setting information for the main connection by temporarily connecting to the wireless access point 1 and obtains the present. Since it has a mechanism for performing a two-stage Wi-Fi connection (wireless connection) of making a connection, the following effects are mainly obtained.

The first effect is that even when the wireless setting is changed at the wireless access point 1, the wireless client terminal 2 uses the RFID tag 3 in which the same wireless setting information is written as it is, and is used with the wireless access point 1. The Wi-Fi connection (wireless connection) between the two is set for this connection, and wireless communication can be performed.

The second effect is that the wireless client terminal 2 keeps the RFID tag 3 in which the same wireless setting information is written as it is for any of the wireless setting information of the plurality of wireless setting information possessed by the wireless access point 1. By using this, a Wi-Fi connection (wireless connection) with the wireless access point 1 can be set for this connection, and wireless communication can be performed.

(Other Embodiments of the present invention)
Next, another embodiment different from the above-described embodiment of the wireless LAN system 100 according to the present invention will be further described. In the above-described embodiment, as shown in the sequence Seq6 of FIG. 2, the case where the wireless setting information selection process for this connection is performed by the wireless setting information selection unit 13 on the wireless access point 1 side has been described. The wireless setting information selection process for this connection may be performed by the application 20 on the wireless client terminal 2 side.

FIG. 4 is a sequence chart showing an example different from FIGS. 2 and 3 in the signal flow in the wireless LAN system 100 shown in FIG. The sequence chart of FIG. 4 is divided into FIGS. 4A and 4B due to the limitation of the size of the paper. A circled at the lower end of FIG. 4A is connected to A circled at the upper end of FIG. 4B. Therefore, the three vertical lines drawn in FIG. 4A are directly connected to the three vertical lines drawn in FIG. 4B. In the following, FIG. 4 refers to a diagram in which FIG. 4A and FIG. 4B are connected. The sequence chart of FIG. 4 shows an example of a case where the wireless setting information selection process for this connection is executed by the application 20 on the wireless client terminal 2 side. In the sequence chart of FIG. 4, the sequences that perform the same processing as those of FIGS. 2 and 3 are given the same sequence numbers as those of FIGS. 2 and 3, and the duplicated description thereof is omitted here. That is, in FIG. 4, the processing in each sequence of Sequence Seq1 to Sequence Seq4, Sequence Seq9A, Seq9B to Sequence Seq12 is exactly the same as in FIGS. 2 and 3, and no duplicate description is given here.

First, in the sequence chart of FIG. 4, when the wireless access point 1 receives the temporary connection wireless setting request (association request: Association Request) from the wireless client terminal 2 (sequence Seq4), the wireless setting selection execution determination unit 12 is pressed. However, unlike the case of the sequence Seq5 in the case of FIG. 2, the wireless setting selection execution determination unit 12 performs the wireless setting selection execution determination process, not the wireless setting selection execution determination process, but the wireless setting information list creation determination process for this connection, and wirelessly. It is confirmed whether or not a specific element bit is added to the temporary connection wireless setting request (association request: Association Request) received from the client terminal 2 (sequence Seq5A).

Then, when a specific element bit is added to the temporary connection wireless setting request (association request: Association Request), the wireless access point 1 has the wireless setting information selection unit 13 as in the case of FIG. To start. However, in FIG. 4, unlike the case of the sequence Seq6 of FIG. 2, the wireless setting information selection unit 13 does not perform the wireless setting information selection process for main connection on the wireless access point 1 side, but the wireless client terminal 2 The preparatory operation for performing the wireless setting information selection process for this connection is performed on the side.

That is, the wireless setting information selection unit 13 on the wireless access point 1 side receives the temporary connection wireless setting request (association request) among the wireless setting information that can be used in the own wireless access point 1. A list extracted from all the wireless setting information that can be used for the main connection in the wireless client terminal 2 of the transmission source is created as the wireless setting information list for the main connection (sequence Seq6A).

Then, the wireless setting information selection unit 13 on the wireless access point 1 side first sets a specific element bit to the wireless client terminal 2 that is the source of the temporary connection wireless setting request (association request). The added temporary connection radio setting response (association response: Association Response) is transmitted (sequence Seq7). As a result, the wireless access point 1 and the wireless client terminal 2 are temporarily connected.

Here, in FIG. 4, when the wireless client terminal 2 completes the Wi-Fi connection (wireless connection) between the wireless access point 1 and the wireless client terminal 2 based on the temporary connection wireless setting information in the sequence Seq7, FIG. This connection wireless setting information standby state transition processing such as sequence Seq8 of 2 is performed, and instead of waiting for the wireless setting information for main connection to be transmitted from the wireless access point 1, it is for main connection. The application 20 is started in order to determine whether or not the wireless setting information selection process is executed by the application 20 on the wireless client terminal 2 side.

That is, in the sequence chart of FIG. 4, when the wireless client terminal 2 receives the temporary connection wireless setting response (association response) to which the element bit is added from the wireless access point 1 in the sequence Seq7, the application 20 Is activated, first, in FIG. 2, the same process as the wireless setting selection execution determination process in the wireless setting selection execution determination unit 12 on the wireless access point 1 side is executed. That is, the application 20 confirms whether or not a specific element bit is added to the temporary connection wireless setting response (association response) received from the wireless access point 1 (sequence Seq21).

The wireless client terminal 2 determines that a specific element bit is added to the temporary connection wireless setting response (association response) from the wireless access point 1 in the wireless setting selection execution determination process of the application 20. If this is the case, it is determined that the wireless setting information selection process for this connection needs to be performed on the wireless client terminal 2 side. Then, the wireless access point 1 transmits a wireless setting information list for main connection (a wireless setting information list for main connection regarding all wireless setting information that can be used for this connection in the own wireless client terminal 2). Check if it has been done.

On the other hand, on the wireless access point 1 side, the temporary connection wireless setting to which a specific element bit is added to the wireless client terminal 2 that is the source of the temporary connection wireless setting request (association request: Association Request). A response (association response) is transmitted to temporarily connect to the wireless client terminal 2 (sequence Seq7). After that, the wireless access point 1 transfers the wireless setting information list for connection created in the sequence Seq6A to the wireless client terminal 2 in order to execute the wireless setting information selection process for connection on the wireless client terminal 2 side. (Sequence Seq22).

When the application 20 of the wireless client terminal 2 confirms that the wireless setting information list for this connection has been transmitted from the wireless access point 1, it receives it from the wireless access point 1 by performing the wireless setting selection process for this connection. From the connection wireless setting information list, any arbitrary wireless setting information is selected as the selected wireless setting information for main connection with the wireless access point 1 (sequence Seq23). Here, in the wireless setting selection process for the main connection, the wireless setting information list for the main connection received from the wireless access point 1 is displayed on the screen of the wireless client terminal 2, and the wireless setting information for the main connection is displayed. It may be a selection operation accompanied by a user operation such as letting the user of the wireless client terminal 2 select as the selection wireless setting information.

After that, the wireless client terminal 2 transmits the selection result of the wireless setting information for the main connection by the wireless setting selection process for the main connection to the wireless access point 1 as the selected wireless setting information (sequence Seq24). When the wireless access point 1 receives the selected wireless setting information which is the selection result of the wireless setting information for the main connection from the wireless client terminal 2, it shifts to the sequence Seq9A or the sequence Seq9B, and the main connection according to the received selection result. Is transmitted to the wireless client terminal 2 (sequence Seq9A or sequence Seq9B), which is exactly the same as the selected wireless setting information of the selection result.

After that, just like the sequence Seq10 to Seq12 in FIG. 2, the general normal authentication and association operations are performed, and the wireless access point 1 and the wireless access point 1 based on the wireless setting information for this connection are used. Complete the Wi-Fi connection (wireless connection) with the wireless client terminal 2. That is, the wireless client terminal 2 performs the main connection authentication with the wireless access point 1 by using the main connection wireless setting information received from the wireless access point 1 (sequence Seq10). When the authentication is obtained, the wireless client terminal 2 transmits a wireless setting request for main connection (association request: Association Request) to the wireless access point 1 (sequence Seq11), and the wireless access point 1 wirelessly sets the wireless setting for main connection. A response (association response: Association Response) is returned (sequence Seq12). As a result, the Wi-Fi connection (wireless connection) between the wireless access point 1 and the wireless client terminal 2 based on the wireless setting information for this connection can be completed.

The configuration of a preferred embodiment of the present invention has been described above. However, it should be noted that such embodiments are merely exemplary of the invention and do not limit the invention in any way. Those skilled in the art can easily understand that various modifications can be made according to a specific application without departing from the gist of the present invention.

1 Wireless access point 1A Wireless access point 2 Wireless client 2A Wireless client terminal 3 RFID tag 3A RFID tag 10 Wireless setting information 10A Wireless setting information 10Aa 1st connection wireless setting information 10Ab 2nd connection wireless setting information 10a 1st Wireless setting information for main connection 10b Wireless setting information for second connection 10c Wireless setting information for temporary connection 10d Setting information for wireless selection 11 Wireless communication unit 11A Wireless communication unit 12 Wireless setting selection execution judgment unit 13 Wireless setting information selection unit 20 Application 20A Application 21 Wireless communication unit 21A Wireless communication unit 30 Wireless setting information 30A Wireless setting information 30Aa Wireless setting information for first connection 30c Wireless setting information for temporary connection 100 Wireless LAN system 100A Wireless LAN system

Claims (7)

Wirelessly connect between the wireless access point and the wireless client terminal
The wireless access point is
Temporary connection wireless setting information for temporary connection with the wireless client terminal, and
The wireless setting information for main connection for main connection with the wireless client terminal, and
Means for wireless communication with the wireless client terminal and
Have,
On the other hand, the wireless client terminal is
A means for reading the temporary connection wireless setting information from the RFID tag in which the temporary connection wireless setting information is written, and a means for reading the temporary connection wireless setting information.
Means for wireless communication with the wireless access point,
Have,
The wireless client terminal is
When making a wireless connection with the wireless access point, the temporary connection wireless setting information is read from the RFID tag, and a predetermined element bit is further added as information indicating that the temporary connection request is made for temporary connection. By transmitting to the wireless access point as a wireless setting request (association request), a temporary connection is made with the wireless access point.
After that, by transmitting the temporary connection wireless setting request (association request) to the wireless access point using the wireless setting information for the main connection returned from the wireless access point that is temporarily connected. , The main connection with the wireless access point,
A wireless LAN system characterized,
The wireless access point is
When a plurality of wireless setting information is provided as the wireless setting information for this connection,
It further has wireless selection setting information that is set in advance by selecting one of the wireless setting information from the plurality of wireless connection information as wireless setting information for main connection with the wireless client terminal.
When the temporary connection wireless setting request (association request) is received from the wireless client terminal,
The wireless setting information preset in the wireless selection setting information is used for the wireless client terminal as the connection wireless setting information for main connection with the wireless client terminal of the temporary connection request source. Return,
A wireless LAN system characterized by this . The wireless selection setting information is selected and set in advance by the user on the wireless client terminal side as wireless setting information for the main connection between the wireless client terminal and the wireless access point.
The wireless LAN system according to claim 1. Wirelessly connect between the wireless access point and the wireless client terminal
The wireless access point is
Temporary connection wireless setting information for temporary connection with the wireless client terminal, and
The wireless setting information for main connection for main connection with the wireless client terminal, and
Means for wireless communication with the wireless client terminal and
Have,
On the other hand, the wireless client terminal is
A means for reading the temporary connection wireless setting information from the RFID tag in which the temporary connection wireless setting information is written, and a means for reading the temporary connection wireless setting information.
Means for wireless communication with the wireless access point,
Have,
The wireless client terminal is
When making a wireless connection with the wireless access point, the temporary connection wireless setting information is read from the RFID tag, and a predetermined element bit is further added as information indicating that the temporary connection request is made for temporary connection. By transmitting to the wireless access point as a wireless setting request (association request), a temporary connection is made with the wireless access point.
After that, by transmitting the temporary connection wireless setting request (association request) to the wireless access point using the wireless setting information for the main connection returned from the wireless access point that is temporarily connected. , The main connection with the wireless access point,
It is a wireless LAN system characterized by
The wireless access point is
When a plurality of wireless setting information is provided as the wireless setting information for this connection,
When the temporary connection wireless setting request (association request) is received from the wireless client terminal,
From the plurality of wireless connection information, a wireless setting information list for the main connection is created by extracting the wireless setting information capable of the main connection with the wireless client terminal of the temporary connection request source, and the wireless is said. Return to the client terminal,
The wireless client terminal is
From the wireless setting information list for main connection returned from the wireless access point, select the wireless setting information for main connection between the own wireless client terminal and the wireless access point, and use it as the selected wireless setting information. By transmitting to the wireless access point, the selected wireless setting information is received from the wireless access point as the wireless setting information for the main connection.
Wireless LAN system that is characterized in that. The wireless client terminal is
Temporary connection wireless setting response with the element bit as a response of the temporary connection wireless setting request (association request) from the wireless access point to which the temporary connection wireless setting request (association request) is transmitted. When you receive the (association response)
Waiting for the wireless setting information list for main connection to be returned from the temporarily connected wireless access point.
The wireless LAN system according to claim 3. Wirelessly connect a wireless client terminal to a wireless access point in a wireless LAN system
The wireless access point is
Temporary connection wireless setting information for temporary connection with the wireless client terminal, and
The wireless setting information for main connection for main connection with the wireless client terminal, and
And the steps to hold
The step of performing wireless communication with the wireless client terminal,
Have,
On the other hand, the wireless client terminal is
A step of reading the temporary connection wireless setting information from the RFID tag in which the temporary connection wireless setting information is written, and
Steps to perform wireless communication with the wireless access point,
Have,
The wireless client terminal is
When making a wireless connection with the wireless access point, the temporary connection wireless setting information is read from the RFID tag, and a predetermined element bit is further added as information indicating that the temporary connection request is made for temporary connection. By transmitting to the wireless access point as a wireless setting request (association request), a temporary connection is made with the wireless access point.
After that, by transmitting the temporary connection wireless setting request (association request) to the wireless access point using the wireless setting information for the main connection returned from the wireless access point that is temporarily connected. , The main connection with the wireless access point,
It a wireless client terminal connection method characterized by,
The wireless access point is
When a plurality of wireless setting information is provided as the wireless setting information for this connection,
A step of holding the wireless selection setting information set in advance by selecting one of the wireless connection information from the plurality of wireless connection information as the wireless setting information for main connection with the wireless client terminal. Have more
When the temporary connection wireless setting request (association request) is received from the wireless client terminal,
The wireless setting information preset in the wireless selection setting information is used for the wireless client terminal as the connection wireless setting information for main connection with the wireless client terminal of the temporary connection request source. Return,
A wireless client terminal connection method characterized by the fact that. The wireless selection setting information is selected and set in advance by the user on the wireless client terminal side as wireless setting information for the main connection between the wireless client terminal and the wireless access point.
The wireless client terminal connection method according to claim 5. Wirelessly connect a wireless client terminal to a wireless access point in a wireless LAN system
The wireless access point is
Temporary connection wireless setting information for temporary connection with the wireless client terminal, and
The wireless setting information for main connection for main connection with the wireless client terminal, and
And the steps to hold
The step of performing wireless communication with the wireless client terminal,
Have,
On the other hand, the wireless client terminal is
A step of reading the temporary connection wireless setting information from the RFID tag in which the temporary connection wireless setting information is written, and
Steps to perform wireless communication with the wireless access point,
Have,
The wireless client terminal is
When making a wireless connection with the wireless access point, the temporary connection wireless setting information is read from the RFID tag, and a predetermined element bit is further added as information indicating that the temporary connection request is made for temporary connection. By transmitting to the wireless access point as a wireless setting request (association request), a temporary connection is made with the wireless access point.
After that, by transmitting the temporary connection wireless setting request (association request) to the wireless access point using the wireless setting information for the main connection returned from the wireless access point that is temporarily connected. , The main connection with the wireless access point,
It is a wireless client terminal connection method characterized by the fact that
The wireless access point is
When a plurality of wireless setting information is provided as the wireless setting information for this connection,
When the temporary connection wireless setting request (association request) is received from the wireless client terminal,
From the plurality of wireless connection information, a wireless setting information list for the main connection is created by extracting the wireless setting information capable of the main connection with the wireless client terminal of the temporary connection request source, and the wireless is said. Return to the client terminal,
The wireless client terminal is
From the wireless setting information list for main connection returned from the wireless access point, select the wireless setting information for main connection between the own wireless client terminal and the wireless access point, and use it as the selected wireless setting information. By transmitting to the wireless access point, the selected wireless setting information is received from the wireless access point as the wireless setting information for the main connection.
No line client terminal connected how to characterized in that.

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