JP2014011786A - Radio connection method, radio lan master unit, and radio lan slave unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio LAN master unit, a radio LAN slave unit, and a radio connection method for easily performing radio connection between the radio LAN slave unit and the radio LAN master unit.SOLUTION: A radio LAN slave unit stores first radio LAN information including an identifier and an encryption key to be used for radio connection between a radio LAN master unit and the radio LAN slave unit, and displays on a display unit a two-dimensional code generated by coding the first radio LAN information. When a camera captures an image of the two-dimensional code, the radio LAN master unit acquires the first radio LAN information by decoding the two-dimensional code in the image data transmitted from the camera. Then, by using the acquired first radio LAN information, the radio LAN master unit and the radio LAN slave unit perform radio connection.

Description

  The present invention relates to a wireless connection method for wirelessly connecting a wireless LAN master device and a wireless LAN slave device, a wireless LAN master device, and a wireless LAN slave device.

  When installing a wireless LAN in a home, etc., prepare a wireless LAN base unit (hereinafter simply referred to as “base unit”) as an access point, and connect a wireless LAN slave unit (hereinafter simply referred to as “slave unit”) to the base unit. To form a network. In the wireless connection between the parent device and the child device, an SSID (Service Set Identifier) that is an identifier set in advance for the parent device and an encryption key used for concealing wireless communication are usually registered in the child device. It becomes possible. For this reason, in order to wirelessly connect the slave unit to the master unit, the SSID and encryption key of the master unit must be found out and input to the slave unit, which requires troublesome work.

  Therefore, a two-dimensional code such as a QR code (registered trademark) encoded with an SSID or encryption key set in the parent device at the time of factory shipment or the like is created, and the SSID or encryption of the parent device is generated using the two-dimensional code. For example, Patent Documents 1 and 2 have proposed a method of inputting a key to a slave unit.

  In Patent Document 1, a sheet on which a two-dimensional code is written is attached to a housing of a parent device, and the two-dimensional code is photographed and decoded by a camera included in the child device. It describes that an SSID and an encryption key are acquired.

  Further, in Patent Document 2, two-dimensional code data is transmitted from a server device that manages a parent device to a personal computer or the like, and the two-dimensional code displayed on the display unit of the personal computer is transmitted by a camera included in the child device. It describes that the slave device acquires the SSID and encryption key of the master device by photographing and decrypting.

JP 2006-157814 A JP 2009-246828 A

  The techniques described in Patent Documents 1 and 2 described above are based on the premise that the slave unit includes a camera. For this reason, when a slave unit that does not have a camera is wirelessly connected to the master unit, the SSID and encryption key of the master unit must be input to the slave unit in the same manner as before, which causes troublesome work. Therefore, it is desirable that the slave unit can be easily wirelessly connected to the master unit even when the slave unit is not equipped with a camera.

  The present invention has been made in order to solve the problems of the background art as described above, and a wireless connection method, a wireless LAN master device, and a wireless LAN that can easily connect a wireless LAN slave device to a wireless LAN master device. The purpose is to provide a handset.

In order to achieve the above object, a wireless connection method of the present invention is a wireless connection method for wirelessly connecting a wireless LAN master device and a wireless LAN slave device,
First wireless LAN information including an identifier and an encryption key used for wireless connection between the wireless LAN master device and the wireless LAN slave device is stored in the wireless LAN slave device in advance.
Displaying a two-dimensional code obtained by encoding the first wireless LAN information on a display unit connected to the wireless LAN slave unit;
When the two-dimensional code is photographed by a camera connected to the wireless LAN base unit, the wireless LAN base unit decodes the two-dimensional code from image data transmitted from the camera, and the first wireless LAN Get information,
In this method, the wireless LAN master device and the wireless LAN slave device perform wireless connection using the first wireless LAN information.

The wireless LAN master device of the present invention includes a first wireless LAN preset in the wireless LAN slave device including an identifier and an encryption key displayed on the display unit and used for wireless connection with the wireless LAN slave device. A connection means to which a camera for photographing a two-dimensional code in which information is encoded is connected;
When the two-dimensional code is photographed by the camera, the first wireless LAN information is obtained by decoding the two-dimensional code from image data transmitted from the camera, and the first wireless LAN information is used to obtain the first wireless LAN information. A control unit that performs wireless connection with the wireless LAN slave unit;
Have

In addition, the wireless LAN slave device of the present invention includes a non-volatile memory that stores first wireless LAN information including an identifier and an encryption key used for wireless connection with the wireless LAN master device;
A connection means connected to a display unit for displaying a two-dimensional code obtained by encoding the first wireless LAN information;
A control unit that performs wireless connection with the wireless LAN base unit using the first wireless LAN information;
Have

  According to the present invention, a wireless LAN slave device can be easily wirelessly connected to a wireless LAN master device.

It is a block diagram which shows the example of 1 structure of the wireless LAN subunit | mobile_unit of 1st Embodiment. 1 is a block diagram illustrating a configuration example of a wireless LAN base unit according to a first embodiment. It is a schematic diagram which shows the operation example of the subunit | mobile_unit shown in FIG. 1, and the main | base station shown in FIG. It is a flowchart which shows operation | movement of the main | base station of 1st Embodiment. It is a block diagram which shows the example of 1 structure of the wireless LAN main | base station of 2nd Embodiment. It is a block diagram which shows the example of 1 structure of the wireless LAN subunit | mobile_unit of 3rd Embodiment.

Next, the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a block diagram showing a configuration example of the wireless LAN slave device of the first embodiment, and FIG. 2 is a block diagram showing a configuration example of the wireless LAN master device of the first embodiment.

  As shown in FIG. 1, the subunit | mobile_unit 1 of 1st Embodiment is provided with the control part 11, the non-volatile memory 12, the working memory 13, the display part 14, and the radio | wireless circuit 15. FIG.

  The control part 11 controls operation | movement of the subunit | mobile_unit 1 by performing a process by CPU (Central Processing Unit) according to a program. The control unit 11 is realized by an information processing IC (Integrated Circuit) such as a microcomputer including a CPU, a memory, various logic circuits, and the like.

  The display unit 14 is a display such as a liquid crystal panel or an organic EL panel that displays characters, symbols, images, and the like in accordance with image signals supplied from the control unit 11.

  The work memory 13 temporarily holds data necessary when the control unit 11 executes processing according to a predetermined program. For example, a RAM (Random Access Memory) is used as the work memory 13.

  The wireless circuit 15 is a wireless LAN interface including a well-known circuit and antenna for transmitting / receiving information to / from other wireless LAN devices based on a wireless LAN standard such as IEEE802.11b / g / a / n.

  The nonvolatile memory 12 includes various data used in the process of the control unit 11, a program for the control unit 11 to execute the process, an SSID and an encryption key (hereinafter referred to as a first key) used for wireless connection preset in the slave unit 1. (Referred to as wireless LAN information). The nonvolatile memory 12 may store image data of a two-dimensional code obtained by encoding the first wireless LAN information. As the nonvolatile memory 12, for example, a semiconductor memory such as a flash memory, a hard disk device, or the like is used. The control unit 11 causes the display unit 14 to display a two-dimensional code obtained by encoding the first wireless LAN information stored in the nonvolatile memory 12 in accordance with a user operation instruction. When only the first wireless LAN information is stored in the nonvolatile memory 12, the control unit 11 encodes the first wireless LAN information to generate a two-dimensional code.

  As shown in FIG. 2, the base unit 2 of the first embodiment includes a control unit 21, a WAN port 22, a LAN port 23, a nonvolatile memory 24, a working memory 25, a camera 26, a wireless circuit 27, and an input unit 28. Prepare.

  The control unit 21 controls the operation of the parent device 2 by executing processing by the CPU according to a program. The control unit 21 is realized by an information processing IC such as a microcomputer including a CPU, a memory, various logic circuits, and the like.

  The work memory 25 is a memory that temporarily holds data necessary when the control unit 21 executes processing according to a predetermined program. For example, a RAM (Random Access Memory) is used as the work memory 25.

  The wireless circuit 27 is a wireless LAN interface including a known circuit and an antenna for transmitting and receiving information to and from other wireless LAN devices based on a wireless LAN standard such as IEEE802.11b / g / a / n.

  The WAN port 22 is a port for connecting to an external network (such as the Internet). For example, a network device, an ADSL modem, a CATV modem, or the like is connected to the WAN port 22 by wire.

  The LAN port 23 is a port for connecting to an internal network (LAN). For example, a personal computer or the like is connected to the LAN port 23 by wire.

  The non-volatile memory 24 includes various data used in the process of the control unit 21, a program for the control unit 21 to execute the process, an SSID and an encryption key different from the first wireless LAN information used for wireless connection with the slave unit 1. (Hereinafter referred to as second wireless LAN information), an SSID preset in the base unit 2, an encryption key (hereinafter referred to as third wireless LAN information), and the like are stored. The second wireless LAN information is, for example, an SSID or encryption key acquired from the child device 1 that is already wirelessly connected. The nonvolatile memory 24 may store image data of a two-dimensional code obtained by encoding the second wireless LAN information or the third wireless LAN information. As the nonvolatile memory 24, for example, a semiconductor memory such as a flash memory, a hard disk, or the like is used.

  The camera 26 captures a still image or a moving image in accordance with a user operation, and transmits the captured image data to the control unit 21.

  The input unit 28 is an input device for inputting user instructions to the parent device 2.

  FIG. 3 is a schematic diagram illustrating an operation example of the slave unit illustrated in FIG. 1 and the master unit illustrated in FIG. 2.

  As shown in FIG. 3, in the first embodiment, as the SSID and encryption key for wireless connection between the parent device 2 and the child device 1, the SSID and encryption key (first Wireless LAN information). The user causes the display unit 14 to display a two-dimensional code obtained by encoding the first wireless LAN information of the slave unit 1, and uses the camera 26 of the master unit 2 to display the two-dimensional code displayed on the display unit 14 of the slave unit 1. Shoot the code. The master unit 2 acquires the first wireless LAN information of the slave unit 1 by decoding the two-dimensional code from the image data captured by the camera 26 and holds it in the work memory 25. The parent device 2 performs “temporary wireless connection” with the child device 1 using the acquired first wireless LAN information of the child device 1.

  In consideration of the case where a plurality of slave units 1 having different SSIDs and encryption keys are connected, the master unit 2 according to the present embodiment takes into account the SSID and encryption key (first wireless LAN) acquired from the slave unit 1. The information can be selected by the user as to whether or not to continue using the information. The input unit 28 is used for the user to input whether or not the first wireless LAN information acquired from the slave unit 1 can be continuously used. For example, a switch or the like may be used for the input unit 28. The “temporary wireless connection” refers to a state in which the parent device 2 is temporarily wirelessly connected to the child device 1 using the first wireless LAN information of the child device 1.

  When the base unit 2 is instructed not to continue using the first wireless LAN information acquired from the handset 1 by the user, the base unit 2 newly stores, for example, the second wireless LAN information stored in the nonvolatile memory 24. Notification is made to the connected slave unit 1 via the wireless circuit 27. In that case, the master unit 2 may notify the slave unit 1 of the second wireless LAN information in the “provisional wireless connection” state. In addition, you may notify the subunit | mobile_unit 1 of SSID and encryption key (3rd wireless LAN information) set to the main | base station 2. FIG. When the second wireless LAN information is notified from the parent device 2, the child device 1 stores the second wireless LAN information in the nonvolatile memory 12, and thereafter, the second wireless LAN information is used for wireless connection with the parent device 2. Is used.

  Further, when the base unit 2 is instructed to continue to use the first wireless LAN information acquired from the handset 1 by the user, for example, the second wireless LAN information stored in the nonvolatile memory 24 is The SSID and encryption key acquired from the slave unit 1 are used for the wireless connection with the slave unit 1 after rewriting with the newly acquired first wireless LAN information.

  FIG. 4 is a flowchart illustrating the operation of the parent device according to the first embodiment.

  As described above, the user operates the handset 1 to cause the display unit 14 to display a two-dimensional code obtained by encoding the first wireless LAN information preset in the handset 1. In addition, the user photographs the two-dimensional code displayed on the display unit 14 of the child device 1 using the camera 26 of the parent device 2.

  As shown in FIG. 4, when the two-dimensional code is photographed, the control unit 21 of the base unit 2 transmits image data photographed from the camera 26, decodes the two-dimensional code from the image data, and obtains the decoded result. The first wireless LAN information of the slave unit 1 is stored in the work memory 25 (step S1).

  Subsequently, the control unit 21 performs temporary wireless connection with the child device 1 using the first wireless LAN information acquired in step S1 (step S2). The user determines whether or not to continue to use the first wireless LAN information acquired from the child device 1 and inputs the result to the parent device 2 using the input unit 28. Whether to continuously use the first wireless LAN information acquired from the slave unit 1 may be input in advance before photographing the two-dimensional code.

  The control unit 21 confirms the instruction content input by the user, and determines whether or not to continue using the first wireless LAN information acquired from the slave unit 1 (step S3). When the first wireless LAN information acquired from the slave unit 1 is continuously used, the control unit 21 rewrites, for example, the second wireless LAN information stored in the nonvolatile memory 24 with the first wireless LAN information (step Thereafter, the wireless connection with the child device 1 is established using the SSID and the encryption key acquired from the child device 1 (S4).

  When the first wireless LAN information acquired from the slave unit 1 is not used continuously, the control unit 21 notifies the slave unit 1 of, for example, the second wireless LAN information stored in the nonvolatile memory 24 (step S5). . The control unit 21 may transmit the third wireless LAN information set in the parent device 2 to the child device 1.

  When the slave unit 1 stores the second wireless LAN information received from the master unit 2 in the nonvolatile memory 12, the control unit 21 uses the second wireless LAN information notified to the slave unit 1 to use the slave unit 1 thereafter. Is established (step S6).

According to this embodiment, since the master unit 2 and the slave unit 1 can acquire the SSID and the encryption key used for wireless connection even if the slave unit 1 is not equipped with a camera, the master unit 2 and the slave unit 1 Can be easily wirelessly connected.
(Second Embodiment)
FIG. 5 is a block diagram illustrating a configuration example of the wireless LAN base unit according to the second embodiment.

  As shown in FIG. 5, the base unit 3 of the second embodiment includes a control unit 21, a WAN port 22, a LAN port 23, a nonvolatile memory 24, a working memory 25, a USB_I / F (USB (Universal Serial Bus) interface). 36), a wireless circuit 27 and an input unit 28.

  The base unit 3 of the second embodiment is configured to include a USB_I / F 36 instead of the camera 26 (see FIG. 2). A camera having a USB interface or a terminal device (for example, a digital camera, a mobile phone, a personal computer, a game machine, etc.) having a USB interface and a camera is connected to the USB_I / F 36 (connection means). Note that a camera or a terminal device including a camera (hereinafter collectively referred to as a camera terminal) and the parent device 3 may be connected using means other than the USB_I / F 36. For example, when the camera terminal includes a wireless circuit (for example, a wireless LAN interface), the parent device 3 and the camera terminal may be wirelessly connected using the wireless circuit.

  In the second embodiment, a two-dimensional code displayed on the slave unit 1 can be captured using a camera terminal connected to the master unit 3. When the base unit 3 receives the image data of the two-dimensional code photographed by the camera terminal, the base unit 3 decodes the two-dimensional code from the image data and acquires the first wireless LAN information of the handset 1. Since other configurations are the same as those of the base unit 2 shown in the first embodiment, the description thereof is omitted. Since the structure of the subunit | mobile_unit 1 is the same as that of 1st Embodiment, the description is abbreviate | omitted.

  When the camera terminal connected to the main unit 3 includes an input unit (such as a numeric keypad, a keyboard, and a touch panel), the function of the input unit 28 illustrated in FIG. 5 may be realized by the input unit included in the camera terminal. Good.

  In addition, when the camera terminal connected to the parent device 3 can store the image data of the photographed two-dimensional code, the user can capture the two-dimensional code displayed on the child device 1 after photographing the two-dimensional code displayed on the child device 1. You may connect with the machine 3.

  In that case, the user confirms in advance whether or not the image data captured by the camera terminal connected to the parent device 3 can be saved. If the image data cannot be saved, the user connects the camera terminal to the parent device 3 and The wireless connection between the parent device 3 and the child device 1 may be established according to the process shown in FIG.

  When the camera terminal connected to the parent device 3 can store image data, the user displays a two-dimensional code obtained by encoding the first wireless LAN information of the child device 1 on the child device 1 and uses the camera terminal. After photographing the two-dimensional code displayed on the handset 1, the camera terminal may be connected to the base unit 3 and the photographed image data may be transmitted from the camera terminal to the base unit 3. Also in this case, the wireless connection between the parent device 3 and the child device 1 may be established in accordance with the processing shown in FIG.

According to the present embodiment, even if the master unit 3 and the slave unit 1 do not have cameras, the master unit 3 and the slave unit 1 can acquire the SSID and encryption key used for wireless connection with each other. It becomes possible to make a wireless connection with the machine 1 simply.
(Third embodiment)
FIG. 6 is a block diagram illustrating a configuration example of the wireless LAN slave device according to the third embodiment.

  As shown in FIG. 6, the handset 4 according to the third embodiment includes a control unit 11, a nonvolatile memory 12, a work memory 13, a USB_I / F 44, and a wireless circuit 15.

  The subunit | mobile_unit 4 of 3rd Embodiment replaces with the display part 14 (refer FIG. 1), and is the structure provided with USB_I / F44. To the USB_I / F 44 (connection means), a display unit having a USB interface or a terminal device (for example, a mobile phone, a personal computer, a game machine, etc.) having a USB interface and a display unit is connected. Note that the display unit or a terminal device including the display unit (hereinafter collectively referred to as a display terminal) and the slave unit 4 may be connected using means other than the USB_I / F 44. For example, when the display terminal includes a wireless circuit (for example, a wireless LAN interface), the handset 4 and the display terminal may be wirelessly connected using the wireless circuit.

  The third embodiment has a configuration capable of displaying a two-dimensional code obtained by encoding the first wireless LAN information set in the slave unit 4 using a display terminal connected to the slave unit 4. Since the structure of the other subunit | mobile_unit 4 is the same as that of the subunit | mobile_unit 1 shown in 1st Embodiment, the description is abbreviate | omitted. Since the configuration of the master unit is the same as that of the first embodiment or the second embodiment, description thereof is omitted.

  In addition, when the display terminal connected to the subunit | mobile_unit 4 is provided with an input part (a numeric keypad, a keyboard, a touch panel etc.), the subunit | mobile_unit 4 can set arbitrary SSID and encryption keys using this input part by a user. It may be configured.

  When an arbitrary SSID or encryption key is set in the handset 4, the user connects a display terminal to the handset 4 and uses the input unit of the display terminal to select an arbitrary SSID or encryption key (hereinafter referred to as the first key). 4 wireless LAN information) may be input and transmitted to the handset 4. In this case, the subunit | mobile_unit 4 preserve | saves the 4th wireless LAN information received from the display terminal in the non-volatile memory 12, and encodes this 4th wireless LAN information, and produces a two-dimensional code. The two-dimensional code may be created by a display terminal connected to the child device 4. The user may display the two-dimensional code created by the handset 4 or the two-dimensional code created by the display terminal on the display terminal.

  When an arbitrary SSID or encryption key is not set in the slave unit 4, the user connects a display terminal to the slave unit 4 and encodes the first wireless LAN information set in advance in the slave unit 4. The code may be transmitted from the handset 4 to the display terminal and displayed on the display terminal. The two-dimensional code may be created by a display terminal. In that case, the subunit | mobile_unit 4 should just transmit only the 1st wireless LAN information preset to the own apparatus to the display terminal.

  When the two-dimensional code is displayed on the display terminal, the wireless connection between the parent device 3 and the child device 1 may be established in accordance with the processing shown in FIG.

  According to the present embodiment, even if the slave unit 4 does not have a display unit, the master unit and the slave unit 4 can acquire the SSID and encryption key used for wireless connection with each other. It becomes possible to establish a wireless connection.

1, 4 Slave unit 2, 3 Master unit 11, 21 Control unit 12, 24 Non-volatile memory 13, 25 Work memory 14 Display unit 15, 27 Radio circuit 2 Master unit 22 WAN port 23 LAN port 26 Camera 28 Input unit 36, 44 USB_I / F

Claims (8)

A wireless connection method for wirelessly connecting a wireless LAN base unit and a wireless LAN slave unit,
First wireless LAN information including an identifier and an encryption key used for wireless connection between the wireless LAN master device and the wireless LAN slave device is stored in the wireless LAN slave device in advance.
Displaying a two-dimensional code obtained by encoding the first wireless LAN information on a display unit connected to the wireless LAN slave unit;
When the two-dimensional code is photographed by a camera connected to the wireless LAN base unit, the wireless LAN base unit decodes the two-dimensional code from image data transmitted from the camera, and the first wireless LAN Get information,
A wireless connection method in which the wireless LAN base unit and the wireless LAN slave unit perform wireless connection using the first wireless LAN information. The wireless LAN base unit is
In accordance with an instruction input in advance by the user, it is determined whether or not to continuously use the first wireless LAN information,
When the first wireless LAN information is not used continuously, the identifier includes an identifier and an encryption key used for wireless connection between the wireless LAN parent device and the wireless LAN child device stored in the wireless LAN parent device, Second wireless LAN information different from the first wireless LAN information is notified to the wireless LAN slave device, and thereafter, the wireless LAN master device and the wireless LAN slave device establish a wireless connection using the second wireless LAN information. Established
When the first wireless LAN information is to be used continuously, the second wireless LAN information is rewritten with the first wireless LAN information, and thereafter, the wireless LAN base unit and the wireless LAN slave unit are connected to the first wireless LAN information. The wireless connection method according to claim 1, wherein a wireless connection is established using LAN information. A two-dimensional code obtained by encoding the first wireless LAN information preset in the wireless LAN slave unit, including an identifier and an encryption key used for wireless connection with the wireless LAN slave unit, displayed on the display unit is photographed. Connecting means to which a camera for connecting is connected;
When the two-dimensional code is photographed by the camera, the first wireless LAN information is obtained by decoding the two-dimensional code from image data transmitted from the camera, and the first wireless LAN information is used to obtain the first wireless LAN information. A control unit that performs wireless connection with the wireless LAN slave unit;
A wireless LAN base unit. An input unit for the user to input instructions;
A non-volatile memory for storing information;
Further comprising
The controller is
In accordance with an instruction input in advance by the user, it is determined whether or not to continuously use the first wireless LAN information,
When the first wireless LAN information is not used continuously, the first wireless LAN information including an identifier and an encryption key used for wireless connection with the wireless LAN slave device stored in the nonvolatile memory; Notifies the wireless LAN slave device of different second wireless LAN information, and thereafter establishes a wireless connection with the wireless LAN slave device using the second wireless LAN information,
When the first wireless LAN information is continuously used, the second wireless LAN information stored in the nonvolatile memory is rewritten with the first wireless LAN information, and thereafter, the first wireless LAN information is used. 4. The wireless LAN master device according to claim 3, wherein a wireless connection with the wireless LAN slave device is established.   The wireless LAN base device according to claim 3 or 4, comprising the camera. A non-volatile memory for storing first wireless LAN information including an identifier and an encryption key used for wireless connection with the wireless LAN base unit;
A connection means connected to a display unit for displaying a two-dimensional code obtained by encoding the first wireless LAN information;
A control unit that performs wireless connection with the wireless LAN base unit using the first wireless LAN information;
A wireless LAN slave unit. The controller is
When the second wireless LAN information different from the first wireless LAN information including the identifier and encryption key used for wireless connection with the wireless LAN base device is notified from the wireless LAN base device, the nonvolatile memory The wireless LAN slave device according to claim 6, wherein the second wireless LAN information is stored, and thereafter, wireless connection with the wireless LAN parent device is established using the second wireless LAN information.   The wireless LAN slave device according to claim 6 or 7, comprising the display unit.

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