JP2018029401A - Communication device and mobile terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To disclose a technique which can appropriately execute the radio communication of target data.SOLUTION: An MFP 10 receives request data from a mobile terminal 50 using the NFC. At this time, the MFP 10, when belonging to a WFD NW as G/O equipment, transmits a WFD radio setting to the mobile terminal 50 using the NFC. In this case, the MFP 10 executes communication of the target data with the mobile terminal 50 using the WFD NW. On the one hand, if the MFP 10, although not belonging to the WFD NW as G/O equipment, belongs to a normal Wi-Fi NW, the MFP 10 newly forms a WFD NW. The MFP 10 transmits to the mobile terminal 50 a normal Wi-Fi radio setting WS2 and a WFD radio setting WS3, using the NFC. In this case, the MFP 10 executes communication of the target data with the mobile terminal 50, using the normal Wi-Fi NW or the WFD NW.SELECTED DRAWING: Figure 5

Description

  The technology disclosed in this specification relates to a communication device and a mobile terminal for executing communication of target data.

  Patent Literature 1 discloses a system including a first wireless communication device, a second wireless communication device, and a terminal device. The first wireless communication device is connected to the terminal device via a wireless LAN. The first wireless communication device performs data communication with the second wireless communication device by NFC. In this case, the first wireless communication apparatus transmits participation information for participating in the wireless LAN to the second wireless communication apparatus by NFC. When the terminal device is an access point, the participation information includes access point communication standard information, ESS-ID, MAC address, security information, and the like. The second wireless communication device participates in the wireless LAN using the participation information. The first and second wireless communication devices perform data communication over a wireless LAN via a terminal device that is an access point.

JP 2010-245748 A

  In the technique of Patent Literature 1, if the second wireless communication device participates in the wireless LAN using the participation information, the first and second wireless communication devices may be able to perform data communication via the terminal device. It is a premise. However, such data communication may not be performed properly. In the present specification, a technique is disclosed in which a communication device and a mobile terminal can appropriately execute communication of target data.

One technique disclosed by this specification is a communication device for executing communication of target data with a mobile terminal. The communication device is a first type interface for executing wireless communication with a portable terminal, and a second type interface for executing wireless communication with the portable terminal, wherein the wireless communication is performed via the second type interface. The communication speed is provided with a second type interface that is faster than the communication speed of wireless communication via the first type interface, and a device-side control unit. The device-side control unit includes a specific data receiving unit, a first information transmitting unit, a forming unit, a second information transmitting unit, and a device-side communication executing unit. The specific data receiving unit receives specific data from the portable terminal via the first type interface. When the specific data is received, the first information transmission unit performs wireless communication using the first wireless network when the communication device belongs to the first wireless network. The first information to be executed is transmitted to the mobile terminal via the first type interface. The first wireless network is a wireless network for executing wireless communication via the second type interface. When the specific data is received, the forming unit renews the third wireless network in the second case where the communication device does not belong to the first wireless network but belongs to the second wireless network. To form. Each of the second wireless network and the third wireless network is a wireless network for performing wireless communication via the second type interface. In the second case, the second information transmission unit uses the second information for the mobile terminal to perform wireless communication using the second wireless network, and the mobile terminal uses the third wireless network. The third information for executing wireless communication is transmitted to the mobile terminal via the first type interface. In the first case, the device-side communication execution unit executes communication of the target data with the portable terminal using the first wireless network, and in the second case, the second wireless network or the third wireless Communication between the mobile terminal and the target data is performed using the network.

  According to said structure, a communication apparatus transmits 1st information to a portable terminal in the 1st case which belongs to a 1st wireless network. For this reason, the communication device and the mobile terminal can appropriately execute communication of the target data using the first wireless network. In addition, the communication device does not belong to the first wireless network, but in the second case where it belongs to the second wireless network, a new third wireless network is formed, and the second information and the second information 3 information is transmitted to the portable terminal. For this reason, the communication device and the mobile terminal can appropriately execute communication of the target data using the second wireless network or the third wireless network. Even if the communication device and the portable terminal cannot execute the communication of the target data using the second wireless network, the communication device and the portable terminal are configured by the third wireless network formed by the communication device. Using this, communication of target data can be appropriately executed.

  In one technique disclosed in the present specification, the device-side control unit of the communication device may include a specific data reception unit, a determination unit, an information transmission unit, and a device-side communication execution unit. The specific data receiving unit receives specific data from the portable terminal via the first type interface. The specific data includes identification information for identifying the wireless network to which the mobile terminal belongs. When the specific data is received, the determination unit uses the identification information to determine whether the mobile terminal belongs to the fifth wireless network when the communication device belongs to the fifth wireless network. to decide. The fifth wireless network is a wireless network for the communication device to operate as a slave station and perform wireless communication via the second type interface. The information transmitting unit includes fifth information for allowing the portable terminal to perform wireless communication using the fifth wireless network in a third case where the portable terminal is determined to belong to the fifth wireless network. And the sixth information for the mobile terminal to perform wireless communication using the sixth wireless network to the mobile terminal via the first type interface, and the mobile terminal transmits the fifth wireless In the fourth case where it is determined not to belong to the network, the sixth information is transmitted to the portable terminal via the first type interface without transmitting the fifth information. The sixth wireless network is a wireless network for the communication device to operate as a master station and perform wireless communication via the second type interface. In the third case, the apparatus-side communication execution unit executes communication of the target data with the portable terminal using the fifth wireless network or the sixth wireless network, and in the fourth case, the sixth wireless communication Communication between the mobile terminal and the target data is performed using the network.

  According to the above configuration, when the communication device determines that the mobile terminal belongs to the fifth wireless network in which the communication device operates as a slave station, the communication device includes the fifth information and the sixth information. To the mobile terminal. For this reason, the communication device and the portable terminal can appropriately execute communication of the target data using the fifth wireless network or the sixth wireless network. Even if the communication device and the mobile terminal cannot execute the communication of the target data using the fifth wireless network, the communication device and the mobile terminal are configured so that the communication device operates as a master station. Communication of target data can be appropriately executed using a wireless network. In addition, in the fourth case where it is determined that the mobile terminal does not belong to the fifth wireless network in which the communication device operates as a slave station, the communication device transmits the sixth information without transmitting the fifth information. To your mobile device. For this reason, the communication device and the portable terminal can appropriately execute communication of the target data using the sixth wireless network. And it can suppress that the security of a 5th wireless network falls.

One technique disclosed in the present specification is a portable terminal for executing communication of target data with a communication device. The portable terminal is a first type interface for executing wireless communication with the communication device, and a second type interface for executing wireless communication with the communication device, and wireless communication via the second type interface. The communication speed is provided with a second type interface and a terminal-side control unit that are faster than the communication speed of the wireless communication via the first type interface. The terminal-side control unit includes a specific data transmission unit, an information reception unit, and a terminal-side communication execution unit. The specific data transmission unit transmits the specific data to the communication device via the first type interface. After the specific data is transmitted, the information receiving unit receives specific information for the mobile terminal to perform wireless communication using the wireless network from the communication device via the first type interface. The terminal-side communication execution unit includes another information on the other wireless network different from the one wireless network, in which the specific information includes one piece of information for the portable terminal to perform wireless communication using one wireless network. When other information for performing wireless communication using is not included, communication between the communication device and the target data is performed using one wireless network, and the specific information includes one information and other information. When a plurality of pieces of information are included, each of the plurality of wireless networks including one wireless network and another wireless network is sequentially used to execute communication of target data with the communication device. . Each of the plurality of wireless networks is a wireless network for executing wireless communication via the second type interface.

  According to the above configuration, when the specific information includes one piece of information, the mobile terminal uses one wireless network to communicate the target data with the communication device. For this reason, the mobile terminal and the communication device can appropriately execute the communication of the target data using the one wireless network. In addition, when the specific information includes a plurality of pieces of information, the mobile terminal sequentially uses each of the plurality of wireless networks to perform communication between the communication device and the target data. Even if the mobile terminal and the communication device cannot execute communication of the target data using any one of the plurality of wireless networks, the mobile terminal and the communication device are The communication of the target data can be appropriately executed using another wireless network of the wireless networks.

  A control method, a computer program, and a computer-readable recording medium storing the computer program for realizing the communication device are also novel and useful. A control method, a computer program, and a computer-readable recording medium for storing the computer program for realizing the portable terminal are also novel and useful. A communication system including the communication device and the mobile terminal is also new and useful.

1 shows a configuration of a communication system. 3 shows a flowchart of MFP communication processing. 6 shows a flowchart of MFP response transmission processing. The flowchart of the application process of a portable terminal is shown. A sequence diagram of case A is shown. A sequence diagram of case B is shown. A sequence diagram of case C is shown. A sequence diagram of case D is shown. 9 shows a flowchart of a response transmission process according to the second embodiment.

(First embodiment)
(Configuration of communication system 2)
As shown in FIG. 1, the communication system 2 includes a plurality of access points (hereinafter referred to as “AP (abbreviation of access point)”) 4a and 4b and a personal computer (hereinafter abbreviated as “PC (abbreviation of personal computer)”. ) ”And a multi-function device (hereinafter referred to as“ MFP (Multi-F
(abbreviation of unction Peripheral) 10) and a portable terminal 50.

(Types of wireless communication that the MFP 10 can execute)
The MFP 10 executes wireless communication according to the NFC (abbreviation of Near Field Communication) method, wireless communication according to the WFD (abbreviation of Wi-Fi Direct) method, and wireless communication according to the normal Wi-Fi method. Is possible. Hereinafter, the wireless communication in accordance with each of the above-described methods is referred to as “NFC communication”, “WFD communication”, and “normal Wi-Fi communication”, respectively.

(NFC communication)
The NFC method is a wireless communication method for so-called short-range wireless communication, for example, a wireless communication method based on the international standard of ISO / IEC21481 or 18092. The MFP 10 can execute NFC communication with the portable terminal 50.

(WFD communication)
The WFD method is a standard document “Wi-Fi” created by Wi-Fi Alliance.
This is a wireless communication method described in “Peer-to-Peer (P2P) Technical Specification Version 1.1”. The WFD system is, for example, wireless in accordance with the 802.11 standard of IEEE (abbreviation of The Institute of Electrical and Electronics Engineers, Inc.) and standards conforming thereto (for example, 802.11a, 11b, 11g, 11n, etc.). It is a wireless communication system for executing communication.

  By belonging to the WFD network, the MFP 10 can execute WFD communication of target data with other devices belonging to the WFD network. The target data is data including information on the network layer of the OSI reference model, and includes print data, scan data, and the like, for example. Further, the portable terminal 50 and the PC 6 can also execute WFD communication of target data by belonging to the WFD network.

  Hereinafter, devices that can execute WFD communication, such as the MFP 10 and the portable terminal 50, are referred to as “WFD-compatible devices”. In the WFD standard document, three states of a group owner state (hereinafter referred to as “G / O state”), a client state, and a device state are defined as states of a WFD-compatible device. The WFD compatible device can selectively operate in one of the above three states.

  When a pair of WFD-compatible devices in a device state should form a WFD network, wireless communication called G / O negotiation is normally performed between the pair of WFD-compatible devices. In the G / O negotiation, it is determined that one of the pair of WFD compatible devices is in the G / O state and the other of the pair of WFD compatible devices is in the client state. A device in the G / O state (hereinafter referred to as “G / O device”) and a device in the client state (hereinafter referred to as “CL device”) form a WFD network. In a WFD network, there may be one G / O device and one or more CL devices. The G / O device manages one or more CL devices. Specifically, the G / O device executes authentication of the CL device for each of one or more CL devices, and when the CL device is successfully authenticated, the CL device identification information (that is, the MAC address). ) In the management list in the memory of the G / O device. When the CL device leaves the WFD network, the G / O device deletes the identification information of the CL device from the management list.

The G / O device can directly execute wireless communication of the target data with the CL device registered in the management list without using a relay device. However, the G / O device can execute wireless communication of participation data for the unregistered device to participate in the WFD network with an unregistered device that is not registered in the management list. Wireless communication cannot be executed. The participation data is data that does not include information on the network layer of the OSI reference model, and includes, for example, a Probe Request signal (hereinafter referred to as “PReq signal”), a Probe Response signal (hereinafter referred to as “PRes signal”), and the like. Contains physical layer data. Note that the G / O device can relay wireless communication of target data among a plurality of CL devices.

  A WFD-compatible device that does not belong to the WFD network (that is, an unregistered device that is not registered in the G / O device management list) is a device in a device state. The device in the device state can perform wireless communication of the participation data for belonging to the WFD network with the G / O device, but performs wireless communication of the target data with the G / O device or the CL device. Impossible.

  As described above, in a WFD network, a pair of WFD-compatible devices can execute WFD communication of target data without going through an AP that is configured separately from these WFD-compatible devices. That is, it can be said that WFD communication is wireless communication not via an AP.

  In the following, it is not possible to selectively operate in one of the three states defined in the WFD standard (that is, the G / O state, the client state, and the device state). A device capable of performing wireless communication via an AP (that is, normal Wi-Fi communication described later) is referred to as “a WFD non-compliant device”. “WFD non-compliant device” is also referred to as “legacy device”. A device in the G / O state can describe identification information of a device that does not support WFD in the management list. In this case, the WFD non-compliant device can participate in the WFD network as a CL device.

(Normal Wi-Fi communication)
The normal Wi-Fi system is a wireless communication system defined by the Wi-Fi Alliance, and is a wireless communication system different from the WFD system. The normal Wi-Fi system, like the WFD system, is a wireless for performing wireless communication in accordance with the IEEE 802.11 standard and standards conforming thereto (for example, 802.11a, 11b, 11g, 11n, etc.). It is a communication method. However, as described above, the WFD method is a wireless communication method for executing wireless communication not via an AP. On the other hand, the normal Wi-Fi method is a wireless communication method for executing wireless communication via an AP. In this respect, the WFD system and the normal Wi-Fi system are different.

  By belonging to the normal Wi-Fi network, the MFP 10 can execute normal Wi-Fi communication of the target data with other devices belonging to the normal Wi-Fi network via the AP. The portable terminal 50 can also execute normal Wi-Fi communication of target data by belonging to the normal Wi-Fi network. Therefore, the MFP 10 can execute normal Wi-Fi communication of the target data with the portable terminal 50 via any one of the plurality of APs 4a and 4b.

  A normal Wi-Fi network is a wireless network constructed in an environment where an AP can be installed, such as an in-house LAN or a home LAN, and generally speaking, is a wireless network that should be formed on a regular basis. . On the other hand, since the WFD network does not require an AP, for example, it is a wireless network constructed to execute temporary wireless communication between a pair of WFD compatible devices. Generally speaking, A wireless network to be temporarily formed. As described above, in this embodiment, it is assumed that the normal Wi-Fi network is a wireless network that should be formed regularly, and the WFD network is a wireless network that should be formed temporarily. Hereinafter, the WFD network and the normal Wi-Fi network are referred to as “WFDNW” and “normal Wi-FiNW”.

(Configuration of MFP 10)
The MFP 10 can execute multiple functions including a print function and a scan function. As shown in FIG. 1, the MFP 10 includes an operation unit 12, a display unit 14, a print execution unit 16, a scan execution unit 18, and a wireless LAN interface (hereinafter, the interface is referred to as “I / F”). ) 20, NFC I / F 22, and control unit 30. Each part 12-30 is connected to a bus line (reference number omitted).

  The operation unit 12 includes a plurality of keys. The user can input various instructions to the MFP 10 by operating the operation unit 12. The display unit 14 is a display for displaying various information. The print execution unit 16 is a printing mechanism such as an inkjet method or a laser method. The scan execution unit 18 is a scan mechanism such as a CCD or CIS.

  The wireless LAN I / F 20 is an interface for executing WFD communication and normal Wi-Fi communication. The wireless LAN I / F 20 is physically one interface (that is, one IC chip). However, the wireless LAN I / F 20 includes a MAC address used in WFD communication (hereinafter referred to as “MAC address for WFD”) and a MAC address used in normal Wi-Fi communication (hereinafter referred to as “normal Wi-Fi”). Both of which are referred to as “MAC address for use”). More specifically, a normal Wi-Fi MAC address is pre-assigned to the wireless LAN I / F 20. The control unit 30 uses the normal Wi-Fi MAC address to generate a WFD MAC address different from the normal Wi-Fi MAC address, and assigns the WFD MAC address to the wireless LAN I / F 20. Therefore, the control unit 30 can simultaneously execute both normal Wi-Fi communication using the normal Wi-Fi MAC address and WFD communication using the WFD MAC address. That is, the MFP 10 can belong to both the WFDNW and the normal Wi-FiNW at the same time.

  From the viewpoint of the MAC address used by the MFP 10, WFD communication and normal Wi-Fi communication can be expressed as follows, for example. That is, WFD communication is wireless communication using the WFD MAC address of the MFP 10, and normal Wi-Fi communication is wireless communication using the normal Wi-Fi MAC address of the MFP 10. The WFDNW is a wireless network in which the WFD MAC address of the MFP 10 is used, and the normal Wi-FiNW is a wireless network in which the normal Wi-Fi MAC address of the MFP 10 is used.

  The NFC I / F 22 is an interface for executing NFC communication. The chip configuring the NFC I / F 22 and the chip configuring the wireless LAN I / F 20 are physically different.

The communication speed of wireless communication via the wireless LAN I / F 20 (for example, the maximum communication speed is 11 to 600 Mbps) is higher than the communication speed of wireless communication via the NFC I / F 22 (for example, the maximum communication speed is 100 to 424 Kbps). Is also fast. In addition, the frequency of the carrier wave in the wireless communication via the wireless LAN I / F 20 (for example, 2.4 GHz band, 5.0 GHz band) is the frequency of the carrier wave in the wireless communication via the NFC I / F 22 (for example, 13.56 MHz band). Is different. For example, when the distance between the MFP 10 and the portable terminal 50 is about 10 cm or less, the control unit 30 can execute NFC communication with the portable terminal 50 via the NFC I / F 22. On the other hand, regardless of whether the distance between the MFP 10 and the portable terminal 50 is 10 cm or less or 10 cm or more (for example, a maximum of about 100 m), the control unit 30 can carry the mobile phone via the wireless LAN I / F 20. The terminal 50 can execute WFD communication and normal Wi-Fi communication. That is, the maximum distance at which the MFP 10 can execute wireless communication with a communication destination device (for example, the portable terminal 50) via the wireless LAN I / F 20 is the NFC I / F 22
It is larger than the maximum distance at which wireless communication can be performed with a communication destination device.

  The control unit 30 includes a CPU 32 and a memory 34. The CPU 32 executes various processes according to the program stored in the memory 34. The functions of the units 40 to 47 are realized by the CPU 32 executing processing according to the program. The memory 34 includes a ROM, a RAM, a hard disk, and the like. The memory 34 stores the above program executed by the CPU 32.

  When the MFP 10 belongs to the WFDNW, the memory 34 further stores WFD belonging information indicating that the MFP 10 belongs to the WFDNW. The WFD affiliation information includes a state value indicating the state of the MFP 10 (G / O state or client state) in the WFDNW, and WFD wireless settings for executing WFD communication using the WFDNW.

  Note that the MFP 10 can form a state where it belongs to the first WFDNW as a G / O device and also belongs to the second WFDNW as a CL device. That is, the MFP 10 can simultaneously belong to two WFDNWs as devices in different states (ie, G / O state, client state). However, the MFP 10 cannot belong to two WFDNWs simultaneously as devices in the same state. That is, the MFP 10 cannot belong to another WFDNW as a G / O device in a state where it belongs to one WFDNW as a G / O device. In addition, the MFP 10 cannot belong to another WFDNW as a CL device in a state where the MFP 10 belongs to one WFDNW as a CL device. When the MFP 10 belongs to the first and second WFDNWs at the same time, the memory 34 stores the first WFD belonging information corresponding to the first WFDNW and the second WFD corresponding to the second WFDNW. Stores both affiliation information.

  The WFD wireless setting includes authentication method information, encryption method information, SSID (Service Set Identifier), BSSID (Basic Service Set Identifier), and a password. The SSID included in the WFD wireless setting is a network identifier for identifying the WFDNW. The BSSID included in the WFD wireless setting is a unique identifier (for example, the MAC address of the G / O device) assigned to the WFDNW G / O device.

  Normally, when forming a WFDNW, the G / O device prepares a WFD wireless setting and supplies the WFD wireless setting to the CL device. For example, the control unit 30 of the MFP 10 prepares a WFD wireless setting when the MFP 10 forms a WFDNW that operates as a G / O device. Specifically, the control unit 30 prepares predetermined authentication method information and encryption method information. The control unit 30 prepares a password by preparing a predetermined password or by newly generating a password. The control unit 30 prepares a predetermined SSID or prepares an SSID by newly generating an SSID. In addition, the control unit 30 prepares a predetermined WFD MAC address as a BSSID.

  Therefore, when the MFP 10 belongs to the WFDNW as a G / O device, the WFD affiliation information corresponding to the WFDNW includes the WFD wireless setting prepared by the MFP 10 when the MFP 10 forms the WFDNW. On the other hand, when the MFP 10 belongs to the WFDNW as a CL device, the WFD affiliation information corresponding to the WFDNW is determined by the G / O device when the G / O device different from the MFP 10 forms the WFDNW. The prepared WFD wireless setting (that is, the WFD wireless setting acquired from the G / O device) is included.

When the MFP 10 belongs to the normal Wi-Fi NW, the memory 34 further stores normal Wi-Fi affiliation information indicating that the MFP 10 belongs to the normal Wi-Fi NW. The normal Wi-Fi affiliation information includes a normal Wi-Fi wireless setting for executing normal Wi-Fi communication using the normal Wi-Fi NW. The normal Wi-Fi wireless setting normally includes authentication method information, encryption method information, SSID, BSSID, and password. The SSID included in the normal Wi-Fi wireless setting is a network identifier for identifying the normal Wi-Fi NW. The BSSID included in the normal Wi-Fi wireless setting is a unique identifier (for example, the MAC address of the AP) assigned to the AP forming the normal Wi-Fi NW.

  The MFP 10 normally participates in normal Wi-Fi NW using the following method. That is, when a predetermined operation is applied to the operation unit 12, the control unit 30 of the MFP 10 performs an SSID search and transmits a PReq signal. As a result, the control unit 30 receives the PRes signal from each of the APs 4 a and 4 b existing around the MFP 10. The PRes signal is used by the AP, authentication method information indicating the authentication method used by the AP that is the transmission source of the PRes signal, encryption method information indicating the encryption method used by the AP, and the AP. SSID and BSSID. Next, the control unit 30 causes the display unit 14 to display a plurality of SSIDs acquired from the plurality of APs. The user uses the operation unit 12 to select one SSID (that is, one AP) from among a plurality of SSIDs. The user further inputs a password using the operation unit 12.

The control unit 30 uses the authentication method information, the encryption method information, the SSID, and the BSSID acquired from the selected AP, and wirelessly connects to the selected AP using the password input by the user. Execute. The wireless connection includes communication processing for the MFP 10 to participate in normal Wi-Fi NW (for example, communication processing for authentication (communication of Authentication signal, Association signal, etc.)). Thereby, the MFP 10 participates in the normal Wi-Fi NW formed by the selected AP. The memory 34 stores each piece of information (authentication method information and the like) used in the wireless connection with the selected AP as a normal Wi-Fi wireless setting.

(Configuration of mobile terminal 50)
The portable terminal 50 is a portable terminal device such as a cellular phone (for example, a smartphone), a PDA, a notebook PC, a tablet PC, a portable music playback device, a portable video playback device, and the like. The portable terminal 50 can execute NFC communication, WFD communication, and normal Wi-Fi communication.

  The portable terminal 50 includes an operation unit 52, a display unit 54, a wireless LAN I / F 60, an NFC I / F 62, and a control unit 70. Each unit 52 to 70 is connected to a bus line (reference numeral omitted). The operation unit 52 includes a plurality of keys. The user can input various instructions to the portable terminal 50 by operating the operation unit 52. The display unit 54 is a display for displaying various information.

  The wireless LAN I / F 60 is an interface for executing WFD communication and normal Wi-Fi communication. The NFC I / F 62 is an interface for executing NFC communication. The difference between these interfaces 60 and 62 is the same as the difference between the interfaces 20 and 22 of the MFP 10. That is, for example, the communication speed of wireless communication via the wireless LAN I / F 60 is faster than the communication speed of wireless communication via the NFC I / F 62.

The control unit 70 includes a CPU 72 and a memory 74. The CPU 72 executes various processes according to the program stored in the memory 74. The program in the memory 74 includes an application 76 for causing the MFP 10 to execute various functions (for example, a print function, a scan function, etc.). For example, the application 76 may be installed on the portable terminal 50 from a server provided by the vendor of the MFP 10, or may be installed on the portable terminal 50 from a medium shipped together with the MFP 10. The functions of the units 80 to 82 are realized by the CPU 72 executing the process according to the application 76.

  Unlike the MFP 10, the portable terminal 50 cannot belong to the WFDNW and the normal Wi-FiNW at the same time. Further, the portable terminal 50 cannot belong to two WFDNWs simultaneously. When the portable terminal 50 belongs to the WFDNW or the normal Wi-Fi NW, the memory 34 stores the WFD affiliation information or the normal Wi-Fi affiliation information as in the MFP 10.

(Configuration of AP4a, 4b)
Each AP 4a, 4b is not a WFD G / O device but a normal AP called a wireless access point or a wireless LAN router, and forms a normal Wi-Fi NW. Each of the APs 4a and 4b receives target data from a first device (for example, the portable terminal 50) among a plurality of devices belonging to the normal Wi-Fi NW, and a second device among the plurality of devices. The target data is transmitted to (for example, the MFP 10). That is, each AP 4a, 4b can execute a relay function that relays wireless communication of target data between a pair of devices belonging to the normal Wi-Fi NW. Each of the APs 4a and 4b can execute a router function that relays data communication between a device belonging to a normal Wi-Fi NW and the Internet.

  The difference between the WFD G / O device and a normal AP (that is, each AP 4a, 4b) is as follows. A WFD G / O device can operate in a state different from the G / O state (that is, a client state) when it leaves the WFDNW to which the device belongs and newly belongs to another WFDNW. On the other hand, a normal AP executes a relay function regardless of which normal Wi-Fi NW the AP forms. That is, a normal AP can execute only the same operation as the WFD G / O device, and cannot execute the same operation as the WFD CL device.

The administrator of the communication system 2 can select ON or OFF as the privacy separator setting (hereinafter referred to as “PS (Privacy Separator) setting”) of each AP 4a, 4b. For example, in a state where the PS setting of the AP 4a is OFF, the AP 4a can execute both the router function and the relay function. On the other hand, when the PS setting of the AP 4a is ON, the AP 4a can execute the router function but cannot execute the relay function. As described above, when the PS setting of the AP 4a is ON, data communication is not performed between a pair of devices belonging to the normal Wi-Fi NW formed by the AP 4a, so that the security of the normal Wi-Fi NW is increased. Can do.

(Communication process executed by MFP 10)
Next, contents of communication processing executed by the MFP 10 will be described with reference to FIG. While the MFP 10 is powered on, the NFC I / F 22 of the MFP 10 transmits a detection radio wave for detecting a device that can perform NFC communication (that is, the portable terminal 50). The user of the portable terminal 50 moves the portable terminal 50 closer to the MFP 10 after performing an operation of selecting a print function or a scan function. Thereby, the distance between the portable terminal 50 and the MFP 10 becomes smaller than the distance (for example, 10 cm) that radio waves reach each other. In this case, the NFC I / F 62 of the portable terminal 50 receives the detected radio wave from the MFP 10 and transmits a response radio wave to the MFP 10. As a result, an NFC communication session is established between the MFP 10 and the portable terminal 50. The portable terminal 50 transmits request data to the MFP 10 using an NFC communication session.

As shown in S10, the specific data receiving unit 40 of the MFP 10 monitors reception of request data from the portable terminal 50 (S10). When receiving the request data from the mobile terminal 50 via the NFC I / F 22, the specific data receiving unit 40 determines YES in S10 and proceeds to S12. When the print function is selected by the user of the portable terminal 50, the request data includes a print instruction. On the other hand, when the scan function is selected by the user of the portable terminal 50, the request data includes a scan instruction. When the mobile terminal 50 belongs to WFDNW or normal Wi-Fi NW, the request data further includes the SSID of the wireless network to which the mobile terminal 50 belongs. When the portable terminal 50 does not belong to either WFDNW or normal Wi-FiNW, the request data does not include the SSID.

(Response transmission processing; Fig. 3)
In S12, the control unit 30 executes a response transmission process. Hereinafter, a WFDNW in which the MFP 10 operates as a G / O device is referred to as “WFDNW (MFP = G / O)”. A WFDNW in which the MFP 10 operates as a CL device is referred to as “WFDNW (MFP = CL)”.

  As shown in FIG. 3, in S30, the control unit 30 determines whether the MFP 10 belongs to WFDNW (MFP = G / O). Specifically, if the WFD affiliation information is not stored in the memory 34, the control unit 30 determines NO in S30 (that is, the MFP 10 does not belong to WFDNW (MFP = G / O)). Then, the process proceeds to S40. In addition, when two pieces of WFD affiliation information are stored in the memory 34, the control unit 30, that is, the MFP 10 belongs to the first WFDNW (MFP = G / O), and the MFP 10 If it belongs to WFDNW (MFP = CL), S30 determines YES (ie, MFP 10 belongs to WFDNW (MFP = G / O)) and proceeds to S32. In addition, when one piece of WFD affiliation information is stored in the memory 34, the control unit 30 determines whether or not the state value included in the WFD affiliation information is a value indicating the G / O state. Check. When the state value is a value indicating the G / O state, the control unit 30 determines YES in S30 and proceeds to S32. When the state value is a value indicating the client state, the control unit 30 determines NO in S30. The process proceeds to S40.

  In S32, the second determination unit 46 determines whether the request data received from the mobile terminal 50 in S10 of FIG. 2 includes the SSID of the wireless network to which the mobile terminal 50 belongs. If the request data includes the SSID, the second determination unit 46 determines YES in S32 and proceeds to S34. If the request data does not include the SSID, the second determination unit 46 determines NO in S32 and S60. Proceed to

  In S <b> 34, the second determination unit 46 determines whether the MFP 10 belongs to the normal Wi-Fi NW. More specifically, if the normal Wi-Fi affiliation information is stored in the memory 34, the second determination unit 46 determines YES in S34 (that is, the MFP 10 belongs to the normal Wi-Fi NW). The process proceeds to S36. If the normal Wi-Fi affiliation information is not stored in the memory 34, the second determination unit 46 determines NO in S34 (that is, the MFP 10 does not belong to the normal Wi-Fi NW), and S60. Proceed to

In S <b> 36, the second determination unit 46 determines whether the MFP 10 and the portable terminal 50 belong to the same normal Wi-Fi NW. Specifically, the second determination unit 46 determines whether or not the SSID included in the normal Wi-Fi affiliation information in the memory 34 matches the SSID included in the request data. If it is determined that the two SSIDs match, the second determination unit 46 determines YES in S36 (that is, the MFP 10 and the portable terminal 50 belong to the same normal Wi-Fi NW), and proceeds to S50. . On the other hand, when determining that the two SSIDs do not match, the second determination unit 46 determines NO in S36 (that is, the MFP 10 and the portable terminal 50 do not belong to the same normal Wi-Fi NW). , Go to S60.

  In S50, the first information transmission unit 41 first generates response data. Specifically, the first information transmission unit 41 corresponds to the normal Wi-Fi wireless setting included in the normal Wi-Fi affiliation information in the memory 34 and the priority information indicating the first priority. The attached first correspondence information is generated. Next, the first information transmission unit 41 includes WFD affiliation information including a state value indicating the G / O state among the one or more WFD affiliation information in the memory 34 (hereinafter, “G / O WFD affiliation information”). Specified). Then, the first information transmission unit 41 sets the second correspondence information in which the WFD wireless setting included in the G / O WFD affiliation information is associated with the priority information indicating the second priority. Generate. The first information transmission unit 41 generates response data including the first correspondence information and the second correspondence information. In S <b> 50, the first information transmission unit 41 further transmits the generated response data to the mobile terminal 50 via the NFC I / F 22. In FIG. 3, the wireless setting, the first priority, and the second priority are described as “WS (abbreviation of Wireless Setting)”, “(1)”, and “(2)”, respectively. ing.

  As described above, in S50, the normal Wi-Fi wireless setting corresponding to the normal Wi-Fi NW to which the mobile terminal 50 belongs has the first priority. For this purpose, the portable terminal 50 preferentially uses the normal Wi-Fi NW in the application process of FIG. 4 described later. At this time, since the mobile terminal 50 already belongs to the normal Wi-Fi NW, the mobile terminal 50 does not need to execute the connection process (S210 in FIG. 4) (YES in S208 in FIG. 4). Therefore, the processing load on the portable terminal 50 can be reduced.

  In S60 executed when S32, S34, or S36 is NO, the first information transmission unit 41 identifies G / O WFD affiliation information among one or more WFD affiliation information in the memory 34. To do. Then, the first information transmission unit 41 generates response data including the WFD wireless setting included in the G / O WFD affiliation information. Unlike S50, in S60, the response data does not include normal Wi-Fi wireless settings and priority information. In S <b> 60, the first information transmission unit 41 further transmits the generated response data to the portable terminal 50 via the NFC I / F 22.

  On the other hand, in S40, the first determination unit 45 determines whether the request data received from the mobile terminal 50 in S10 of FIG. 2 includes the SSID of the wireless network to which the mobile terminal 50 belongs. If the request data includes the SSID, the first determination unit 45 determines YES in S40 and proceeds to S42. If the request data does not include the SSID, the first determination unit 45 determines NO in S40 and S48. Proceed to

  In S <b> 42, the first determination unit 45 determines whether the MFP 10 belongs to at least one of normal Wi-Fi NW and WFDNW (MFP = CL). Specifically, the first determination unit 45 includes at least normal Wi-Fi affiliation information and WFD affiliation information (hereinafter referred to as “CL WFD affiliation information”) including a state value indicating a client state. If one is stored in the memory 34, it is determined YES in S42 (that is, the MFP 10 belongs to at least one of normal Wi-Fi NW and WFDNW (MFP = CL)), and the process returns to S44. move on. If neither the normal Wi-Fi affiliation information nor the CL WFD affiliation information is stored in the memory 34, the first determination unit 45 determines NO in S42 (that is, the MFP 10 determines that the normal Wi-Fi NW and the WFDNW (MFP = CL does not belong to any of them), and the process proceeds to S48.

In S <b> 44, when the normal Wi-Fi affiliation information is stored in the memory 34, the first determination unit 45 determines whether the MFP 10 and the portable terminal 50 belong to the same normal Wi-Fi NW. A first determination process is performed for this purpose. The first determination process is the same as S36. If the first determination unit 45 determines that the MFP 10 and the portable terminal 50 belong to the same normal Wi-Fi NW in the first determination process, the first determination unit 45 determines YES in S44 and proceeds to S46.

  In S44, if the CL WFD affiliation information is stored in the memory 34, the first determination unit 45 determines whether the MFP 10 and the portable terminal 50 belong to the same WFDNW (MFP = CL). A second determination process is performed to determine whether or not. Specifically, the first determination unit 45 determines whether or not the SSID included in the CL WFD belonging information in the memory 34 matches the SSID included in the request data. When the two SSIDs match, the first determination unit 45 determines that the MFP 10 and the portable terminal 50 belong to the same WFDNW (MFP = CL). When determining that the MFP 10 and the portable terminal 50 belong to the same WFDNW (MFP = CL) in the second determination process, the first determination unit 45 determines YES in S44 and proceeds to S46. .

  On the other hand, the first determination unit 45 determines that the MFP 10 and the portable terminal 50 do not belong to the same normal Wi-Fi NW in the first determination process, and the MFP 10 and the portable terminal 50 in the second determination process. If it is determined that 50 does not belong to the same WFDNW (MFP = CL), NO is determined in S44, and the process proceeds to S48.

  In S46, the forming unit 44 shifts the MFP 10 to the autonomous G / O mode. As described above, when a WFD network is to be newly formed, G / O negotiation is usually executed to determine a G / O device and a CL device. On the other hand, in the autonomous G / O mode, it is determined that the MFP 10 is a G / O device without executing the G / O negotiation. In step S46, the MFP 10 is a G / O device, but there is no CL device. In other words, the forming unit 44 executes S46 to form a WFDNW (MFP = G / O) to which only the G / O device (that is, the MFP 10) belongs.

  The autonomous G / O mode is a mode in which the MFP 10 maintains operation in the G / O state. For example, when the MFP 10 enters the G / O state by the G / O negotiation to form the WFD network, and the CL device disappears from the WFD network, the MFP 10 shifts from the G / O state to the device state (that is, , The WFD network disappears). On the other hand, for example, when the MFP 10 enters the G / O state in the autonomous G / O mode to form the WFD network, the MFP 10 maintains the G / O state even if there is no CL device (that is, Maintain WFD network).

  When S46 is started, there is a possibility that the MFP 10 belongs to WFDNW (MFP = CL). In this case, in S <b> 46, the formation unit 44 newly forms WFDNW (MFP = G / O) without causing the MFP 10 to leave the WFDNW (MFP = CL). In other words, a state is formed in which the MFP 10 belongs to two WFDNWs simultaneously. This also applies to S48 described later.

  In S46, the forming unit 44 further prepares WFD wireless settings (that is, authentication method information, encryption method information, SSID, BSSID, and password) to be used in WFDNW (MFP = G / O). The method for preparing the WFD wireless setting is as described above. In S <b> 46, the forming unit 44 further stores the G / O WFD affiliation information including the state value indicating the G / O state and the prepared WFD wireless setting in the memory 34. When S46 ends, the process proceeds to S70.

In S70, the second information transmission unit 42 first generates response data. Specifically, the second information transmission unit 42 selects both the MFP 10 and the portable terminal 50 from one or more pieces of affiliation information in the memory 34 (that is, normal Wi-Fi affiliation information and WFD affiliation information). Is associated with the wireless network (ie, the wireless network determined to be YES in S44) (hereinafter referred to as “specific affiliation information”). The specific affiliation information is normal Wi-Fi affiliation information or CL WFD affiliation information. Then, the second information transmission unit 42 includes the wireless setting (that is, the normal Wi-Fi wireless setting or the WFD wireless setting of WFDNW (MFP = CL)) included in the specific affiliation information, and the first priority order. The first correspondence information in which the priority order information indicating is associated is generated. Next, the second information transmission unit 42 sets the WFD wireless setting (that is, the WFD wireless setting prepared in S46) included in the G / O WFD affiliation information in the memory 34 and the priority order indicating the second priority order. Second correspondence information in which information is associated with each other is generated. The second information transmission unit 42 generates response data including the first correspondence information and the second correspondence information. In S <b> 70, the second information transmission unit 42 further transmits the generated response data to the portable terminal 50 via the NFC I / F 22.

  As described above, in S70, the wireless setting corresponding to the wireless network to which the portable terminal 50 belongs has the first priority. For this purpose, the portable terminal 50 preferentially uses the wireless network in the application process of FIG. 4 described later. At this time, since the portable terminal 50 already belongs to the wireless network, the portable terminal 50 does not need to execute the connection process (S210 in FIG. 4) (YES in S208 in FIG. 4). Therefore, the processing load on the portable terminal 50 can be reduced.

  On the other hand, in S48, the forming unit 44 shifts the MFP 10 to the autonomous G / O mode. S48 is the same as S46. Next, in S60 executed through S48, the third information transmission unit 43 includes the WFD wireless setting included in the G / O WFD belonging information in the memory 34 (that is, the WFD wireless setting prepared in S48). Generate response data. Unlike S70, in S60, the response data does not include a normal Wi-Fi wireless setting or a WFD wireless setting corresponding to WFDNW (MFP = CL), and does not include priority information. In S <b> 60 executed via S <b> 48, the third information transmission unit 43 further transmits the generated response data to the portable terminal 50 via the NFC I / F 22.

  As described above, even if the MFP 10 belongs to the normal Wi-Fi NW, if the portable terminal 50 does not belong to the normal Wi-Fi NW (NO in S36 or NO in S44), the MFP 10 The normal Wi-Fi wireless setting corresponding to the Wi-Fi NW is not transmitted to the portable terminal 50 (S60). For this reason, it is possible to suppress a decrease in the security of the normal Wi-Fi NW to which the MFP 10 belongs. Similarly, even if the MFP 10 belongs to WFDNW (MFP = CL), if the portable terminal 50 does not belong to the WFDNW (MFP = CL) (NO in S44), the MFP 10 determines that the WFDNW (MFP = CL). ) Is not transmitted to the portable terminal 50 (S60). For this reason, it is possible to prevent the security of the WFDNW (MFP = CL) to which the MFP 10 belongs from decreasing.

  On the other hand, in the WFDNW (MFP = G / O) to which the MFP 10 belongs, there is no problem even if the MFP 10 determines the security policy of the WFDNW. For this reason, in this embodiment, even if the portable terminal 50 does not belong to the WFDNW (MFP = G / O), the MFP 10 performs the WFD wireless setting corresponding to the WFDNW (MFP = G / O). It transmits to the portable terminal 50 (S50, S60, S70). Thereby, as will be described in detail later, the MFP 10 and the portable terminal 50 can appropriately execute communication of the target data by using WFDNW (MFP = G / O).

(Processing after S14 in FIG. 2)
When S50, S60, or S70 in FIG. 3 is executed, the response transmission process in FIG. 3 ends. In this case, the process proceeds to S14 in FIG. Regardless of which of S50, S60, and S70 of FIG. 3 is executed, the WFD wireless setting corresponding to WFDNW (MFP = G / O) is transmitted to the portable terminal 50. As will be described in detail later, when the portable terminal 50 does not belong to the WFDNW (MFP = G / O), the connection for participating in the WFDNW (MFP = G / O) using the WFD wireless setting. A signal (for example, an Authentication Request signal or an Association Request signal) is transmitted to the MFP 10 (see S210 in FIG. 4). In S14, the control unit 3
0 monitors whether a connection signal is received from the portable terminal 50 via the wireless LAN I / F 20. When receiving a connection signal from the mobile terminal 50, the control unit 30 determines YES in S14, and proceeds to S16. If NO in S14, the process proceeds to S18.

In S <b> 16, the control unit 30 transmits a connection response signal (for example, an Authentication Response signal or an Association Response signal), which is a response signal to the connection signal, to the mobile terminal 50 via the wireless LAN I / F 20. As a result, the portable terminal 50 is connected to the WFDNW (MF
P = G / O). That is, the MFP 10 and the portable terminal 50 belong to the same WFDNW (MFP = G / O). When S16 ends, the process proceeds to S18.

  As will be described in detail later, the portable terminal 50 transmits a confirmation signal (for example, a PING signal) to the MFP 10 using the wireless network to which both the MFP 10 and the portable terminal 50 belong (see S212 in FIG. 4). . In S <b> 18, the communication execution unit 47 monitors whether a confirmation signal is received from the portable terminal 50 via the wireless LAN I / F 20. When the communication execution unit 47 receives a confirmation signal from the portable terminal 50, the communication execution unit 47 determines YES in S18 and proceeds to S20. If NO in S18, the process returns to S14.

In S <b> 20, the control unit 30 transmits a confirmation response signal (for example, a PING Response signal) that is a response signal to the confirmation signal to the portable terminal 50 via the wireless LAN I / F 20.
When S20 ends, the process proceeds to S22.

  Even if a confirmation signal is transmitted from the portable terminal 50 to the MFP 10 using a wireless network to which both the MFP 10 and the portable terminal 50 belong (hereinafter referred to as “both belonging NW”), the MFP 10 May not be able to receive. For example, in a situation where both affiliated NWs are normal Wi-Fi NWs, if the AP setting of the AP forming the normal Wi-Fi NW is ON, the AP receives a confirmation signal from the mobile terminal 50. However, the confirmation signal is not transmitted to the MFP 10. Further, for example, in a situation where both NWs are WFDNWs (ie, WFDNW (MFP = CL, portable terminal = CL)) in which both the MFP 10 and the portable terminal 50 operate as CL devices, the WFDNW (MFP = CL, When the PS setting of the G / O device forming the portable terminal = CL) is ON, even if the G / O device receives the confirmation signal from the portable terminal 50, the G / O device transmits the confirmation signal to the MFP 10. do not do. As described above, even when both affiliation NWs are used, there is a possibility that communication of the confirmation signal and the confirmation response signal cannot be executed. When such a dual network NW is used, communication of target data (that is, print data or scan data) cannot be performed.

  On the other hand, when both the belonging NWs are WFDNW (MFP = G / O), the MFP 10 and the portable terminal 50 do not execute communication via the relay device (that is, AP or G / O device). Execute communication directly. Therefore, the event that the data communication is not successful does not occur due to the PS setting of the relay device being ON. Also, even when the both affiliated NWs are normal Wi-Fi NW or WFDNW (MFP = CL, portable terminal = CL), the communication of the confirmation signal and the confirmation response signal is executed when the PS setting of the relay device is OFF. Is possible. When such both affiliation NWs are used, communication of target data (that is, print data or scan data) can be executed.

  In view of such a situation, in S22, the communication execution unit 47 uses a wireless network (hereinafter referred to as a “specific wireless network”) that has successfully communicated the confirmation signal and the confirmation response signal, to perform wireless LAN I / O. Communication of the target data is executed via F20. Thereby, the MFP 10 and the portable terminal 50 can appropriately execute communication of the target data. For example, in S22 executed via S50 in FIG. 3, normal Wi-Fi NW or WFDNW (MFP = G / O) is the specific wireless network. Also, for example, in S22 executed after S60 in FIG. 3, WFDNW (MFP = G / O) is the specific wireless network. Further, for example, in S22 executed through S70 of FIG. 3, normal Wi-FiNW, WFDNW (MFP = CL), or WFDNW (MFP = G / O) is the specific wireless network.

  For example, when the request data received in S10 includes a print instruction, in S22, the communication execution unit 47 uses the specific wireless network from the portable terminal 50 via the wireless LAN I / F 20. Receive print data. Next, the control unit 30 supplies print data (that is, target data) to the print execution unit 16. Thereby, the print execution unit 16 prints the image represented by the print data on the print medium. If the request data received in S10 includes a scan instruction, the control unit 30 activates the scan execution unit 18 in S22. Thereby, the scan execution unit 18 scans the document and generates scan data. Next, the communication execution unit 47 transmits scan data (that is, target data) to the portable terminal 50 via the wireless LAN I / F 20 using the specific wireless network. When S22 ends, the process returns to S10.

  The print data or the scan data usually has a larger data size than each data (for example, request data and response data) communicated by NFC communication. As described above, the communication speed of NFC communication is slower than the communication speed of WFD communication or normal Wi-Fi communication. Therefore, if a configuration is adopted in which wireless communication of target data is performed using the NFC communication between the MFP 10 and the portable terminal 50, a long time is required for wireless communication of the target data. In view of such circumstances, in this embodiment, the MFP 10 transmits response data for executing wireless communication of the target data to the portable terminal 50 by WFD communication or normal Wi-Fi communication. Thereby, the MFP 10 and the portable terminal 50 can execute the WFD communication or the normal Wi-Fi communication of the target data, and as a result, can quickly execute the wireless communication of the target data.

(Application processing of portable terminal 50; FIG. 4)
Next, with reference to FIG. 4, the contents of processing executed by the control unit 70 of the portable terminal 50 according to the application 76 will be described. When the user of the portable terminal 50 desires the MFP 10 to execute the printing function or the scanning function, the user operates the operation unit 52 to activate the application 76. Thereby, the control part 70 starts the flowchart of FIG.

  The user operates the operation unit 52 to select a function (print function or scan function) to be executed by the MFP 10. When the user selects a print function, the user further operates the operation unit 52 to select data to be printed (that is, print data) stored in the memory 74 of the portable terminal 50. When the print function or the scan function is selected by the user, the control unit 70 determines YES in S200 and proceeds to S202.

In S202, the specific data transmission unit 80 first generates request data including an instruction (print instruction or scan instruction) corresponding to the selected function. Further, when normal Wi-Fi affiliation information or WFD affiliation information is stored in the memory 74, the specific data transmission unit 80 specifies the SSID included in the affiliation information. Then, the specific data transmission unit 80 generates request data including the specified SSID. In S <b> 202, the specific data transmission unit 80 further monitors that an NFC communication session is established between the MFP 10 and the portable terminal 50. The specific data transmission unit 80 transmits the generated request data to the MFP 10 via the NFC I / F 62 when the NFC communication session is established. Thereby, the MFP 10 receives the request data (see S10 in FIG. 2).

  As described above, the MFP 10 transmits the response data to the portable terminal 50 in S50, S60, or S70 of FIG. As a result, in S <b> 204, the information receiving unit 81 receives response data from the MFP 10 via the NFC I / F 62.

  Next, in S206, the communication execution unit 82 identifies the wireless setting having the highest priority among the one or more wireless settings included in the response data received in S204. For example, when the response data includes a WFD wireless setting corresponding to WFDNW (MFP = G / O) and does not include other wireless settings (see S60 in FIG. 3), the communication execution unit 82 transmits the WFD wireless setting. Identify settings. Further, for example, when the response data includes two wireless settings (see S50 and S70 in FIG. 3), in the first S206, the communication execution unit 82 displays priority information indicating the first priority. Identify the associated wireless settings. This wireless setting matches the wireless setting included in the affiliation information in the memory 74, that is, the wireless setting corresponding to the wireless network to which the mobile terminal 50 belongs. This is because in S50 or S70 of FIG. 3, the wireless setting corresponding to the wireless network to which both the MFP 10 and the portable terminal 50 belong is associated with the priority information indicating the first priority.

  Next, in S208, the communication execution unit 82 determines whether or not the mobile terminal 50 belongs to a wireless network (hereinafter referred to as “target wireless network”) corresponding to the wireless setting specified in S206. . More specifically, if the wireless setting specified in S206 matches the wireless setting included in the affiliation information in the memory 74, the communication execution unit 82 determines YES in S208, and executes S210. Skip to S212. On the other hand, if the wireless setting specified in S206 does not match the wireless setting included in the affiliation information in the memory 74, the communication execution unit 82 determines NO in S208 and proceeds to S210.

In S210, the communication execution unit 82 executes a connection process using the wireless setting specified in S206. Specifically, the communication execution unit 82 is a connection for connecting to a target relay device (for example, the AP 4a, 4b or the MFP 10 operating as a G / O device) forming the target wireless network. Generate a signal. Next, the communication execution unit 82 transmits a connection signal to the target relay device via the wireless LAN I / F 60, and as a result, receives a connection response signal from the target relay device via the wireless LAN I / F 60. To do. Communication of the connection signal and the connection response signal is executed a plurality of times. For example, an Authentication Request signal is transmitted as a connection signal, and an Authentication Response signal is received as a connection response signal.
Further, for example, an Association Request signal is transmitted as a connection signal, and an Association Response signal is received as a connection response signal. When the target relay device is MFP 10 that operates as a G / O device, MFP 10 receives a connection signal from portable terminal 50 in S14 of FIG. 2, and sends a connection response signal to portable terminal in S16. 50.

In the process of communication of the connection signal and the connection response signal, the communication execution unit 82 transmits the authentication method information, the encryption method information, the password, the SSID, and the BSSID included in the wireless setting specified in S206. Thereby, the target relay apparatus performs authentication of the portable terminal 50. If the authentication is successful, the connection between the mobile terminal 50 and the target relay device is successful, and as a result, the mobile terminal 50 newly participates in the target wireless network. Note that there is a possibility that the portable terminal 50 belongs to an existing wireless network when S210 is executed.
In this case, the mobile terminal 50 leaves the existing wireless network and newly joins the target wireless network.

  Next, in S <b> 212, the communication execution unit 82 transmits a confirmation signal (for example, a PING signal) to the MFP 10 via the wireless LAN I / F 60 using the wireless network to which the portable terminal 50 belongs. For example, in the case of YES in S208, the wireless network used in S212 is an existing wireless network to which the mobile terminal 50 belongs at the stage where the application process of FIG. 4 is started. For example, in the case of NO in S208, the wireless network used in S212 is a wireless network to which the mobile terminal 50 newly participates in the connection process in S210.

In S <b> 214, the communication execution unit 82 monitors whether an acknowledgment response signal (for example, a PING Response signal) is received from the MFP 10 via the wireless LAN I / F 60. As described above, when the PS setting of the relay device forming the wireless network used for the confirmation signal communication is ON, the communication execution unit 82 does not receive the confirmation response signal. In this case, the communication execution unit 82 determines NO in S214, and proceeds to S216. On the other hand, when receiving the confirmation response signal, the communication execution unit 82 determines YES in S214 and proceeds to S218.

  In S216, the communication execution unit 82 determines whether there is a wireless setting that has not yet been specified in S206 among the one or more wireless settings included in the response data received in S204. If there is no wireless setting that has not yet been specified in S206, the communication execution unit 82 determines NO in S216 and proceeds to S220. On the other hand, if there is a wireless setting that has not yet been specified in S206, the communication execution unit 82 determines YES in S216 and executes the second S206.

  In the second S206, the communication execution unit 82 identifies the wireless setting having the highest priority among the wireless settings that have not yet been identified in the first S206. In the present embodiment, since “2” is the maximum number of wireless settings included in the response data, the communication execution unit 82 associates with the priority information indicating the second priority in the second S206. Identify the configured wireless settings. This wireless setting is a WFD wireless setting corresponding to WFDNW (MFP = G / O). This is because in S50 or S70 of FIG. 3, the WFD wireless setting corresponding to WFDNW (MFP = G / O) is associated with the priority information indicating the second priority. Therefore, when S208 to S214 are subsequently executed, the communication execution unit 82 normally receives an acknowledgment signal from the MFP 10 in S214. In WFDNW (MFP = G / O), since communication is directly performed without going through a relay device, there is an event that data communication is not successful due to the PS setting of the relay device being ON. This is because it does not occur.

  In S218, the communication execution unit 82 communicates the target data via the wireless LAN I / F 60 using the wireless network (hereinafter referred to as “specific wireless network”) in which the confirmation signal and the response signal have been successfully communicated. Execute. For example, when the print function is selected in S200, in S218, the communication execution unit 82 transmits print data to the MFP 10 via the wireless LAN I / F 60 using the specific wireless network. If the scan function is selected in S200, in S218, the communication execution unit 82 receives scan data from the MFP 10 via the wireless LAN I / F 60 using the specific wireless network. In this case, the control unit 70 stores the scan data in the memory 74. When S218 ends, the application process of FIG. 4 ends.

In S220, the control unit 70 causes the display unit 54 to display information indicating that communication of target data with the MFP 10 cannot be executed. When S220 ends, the application process of FIG. 4 ends. In S210, when the mobile terminal 50 leaves the existing wireless network and joins a new wireless network, the control unit 70 further performs the following processing after the application processing in FIG. Run. That is, the control unit 70 removes the portable terminal 50 from the wireless network that participated in S210, and causes the portable terminal 50 to participate in the existing wireless network again.

(Specific case)
Next, specific cases realized by the MFP 10 and the portable terminal 50 according to the present embodiment will be described with reference to FIGS. 5 to 8, a thin line arrow between the MFP 10 and the portable terminal 50 indicates NFC communication, and a thick line arrow between the MFP 10 and the portable terminal 50 indicates WFD communication or normal Wi-Fi communication. The PS setting of AP4a is ON.

(Figure 5; Case A)
In case A, a WFDNW (MFP = G / O) is formed in which the MFP 10 is a G / O device and the PC 6 is a CL device. In WFDNW (MFP = G / O), WFD wireless setting WS1 including SSID “01” is used. Further, the MFP 10 and the portable terminal 50 belong to the normal Wi-Fi NW formed by the AP 4a. In the normal Wi-Fi NW, the normal Wi-Fi wireless setting WS4 including the SSID “04” is used.

  When the printing function is selected by the user (YES in S200 of FIG. 4), portable terminal 50 uses NFC communication to transmit request data including a print instruction and SSID “04” to MFP 10 (S202). .

  When MFP 10 receives the request data from portable terminal 50 (YES in S10 of FIG. 2), it determines YES in S30 of FIG. 3, determines YES in S32, determines YES in S34, and determines YES in S36. To do. As a result, the MFP 10 sets the normal Wi-Fi wireless setting WS4 associated with the priority information indicating the first priority and the WFD wireless setting associated with the priority information indicating the second priority. Response data including WS1 is transmitted to the portable terminal 50 using NFC communication (S50).

  When the portable terminal 50 receives the response data from the MFP 10 (S204 in FIG. 4), the mobile terminal 50 specifies the normal Wi-Fi wireless setting WS4 associated with the priority information indicating the first priority (S206). Next, the portable terminal 50 determines YES in S208, and transmits a confirmation signal to the MFP 10 using normal Wi-Fi NW (S212). However, since the PS setting of the AP 4a is ON, the AP 4a does not transmit the confirmation signal to the MFP 10 even if the confirmation signal is received from the portable terminal 50. As a result, the portable terminal 50 does not receive the confirmation response signal, and determines NO in S214.

  Next, the portable terminal 50 specifies the WFD wireless setting WS1 associated with the priority information indicating the second priority (S206). In this case, the portable terminal 50 determines NO in S208, uses the WFD wireless setting WS1 to connect to the MFP 10 that is the G / O device, and newly participates in the WFDNW (MFP = G / O) (S210). ). Next, the portable terminal 50 transmits a confirmation signal to the MFP 10 using WFDNW (MFP = G / O) (S212).

  In WFDNW (MFP = G / O), the confirmation signal is transmitted to the MFP 10 without going through the relay device. Therefore, the MFP 10 receives the confirmation signal from the portable terminal 50 using WFDNW (MFP = G / O) (YES in S18 of FIG. 2). In this case, the MFP 10 uses WFDNW (MFP = G / O) to transmit a confirmation response signal to the portable terminal 50 (S20).

  When the portable terminal 50 receives the confirmation signal from the MFP 10 (YES in S214 in FIG. 4), the portable terminal 50 transmits print data to the MFP 10 using WFDNW (MFP = G / O) (S218). As a result, the MFP 10 receives print data by using WFDNW (MFP = G / O) (S22 in FIG. 2). As a result, the image represented by the print data is printed on the print medium.

(Figure 6; Case B)
In Case B, the WFDNW (MFP = G / O) to which the MFP 10 and the PC 6 belong is the same as the WFDNW (MFP = G / O) in Case A. The MFP 10 belongs to the normal Wi-Fi NW formed by the AP 4a. In the normal Wi-Fi NW, the normal Wi-Fi wireless setting WS4 including the SSID “04” is used. The mobile terminal 50 belongs to the normal Wi-Fi NW formed by the AP 4b. In the normal Wi-Fi NW, the normal Wi-Fi wireless setting WS5 including the SSID “05” is used.

  When the printing function is selected by the user (YES in S200 of FIG. 4), portable terminal 50 uses NFC communication to transmit request data including a print instruction and SSID “05” to MFP 10 (FIG. 4). S202).

  When MFP 10 receives the request data from portable terminal 50 (YES in S10 of FIG. 2), it determines YES in S30 of FIG. 3, determines YES in S32, determines YES in S34, and determines NO in S36. To do. As a result, the MFP 10 transmits response data including the WFD wireless setting WS1 and not including the normal Wi-Fi wireless setting WS4 to the portable terminal 50 using NFC communication (S60 in FIG. 3).

  When the portable terminal 50 receives the response data from the MFP 10 (S204 in FIG. 4), the portable terminal 50 specifies the WFD wireless setting WS1 (S206). Next, the mobile terminal 50 determines NO in S208, uses the WFD wireless setting WS1 to connect to the MFP 10 that is a G / O device, and newly participates in the WFDNW (MFP = G / O) (S210). . The subsequent operations of the MFP 10 and the portable terminal 50 are the same as those in the case A.

(Figure 7; Case C)
In case C, as in case A, the MFP 10 and the portable terminal 50 belong to the normal Wi-Fi NW formed by the AP 4a. In the normal Wi-Fi NW, the normal Wi-Fi wireless setting WS2 including the SSID “02” is used. The MFP 10 and the portable terminal 50 do not belong to the WFDNW.

  When the printing function is selected by the user (YES in S200 of FIG. 4), the portable terminal 50 uses NFC communication to transmit request data including a print instruction and SSID “02” to the MFP 10 (FIG. 4). S202).

  When MFP 10 receives the request data from portable terminal 50 (YES in S10 of FIG. 2), it determines NO in S30 of FIG. 3, determines YES in S40, determines YES in S42, and determines YES in S44. To do. As a result, the MFP 10 shifts to the autonomous G / O mode and forms WFDNW (MFP = G / O) (S46). In WFDNW (MFP = G / O), WFD wireless setting WS3 is used. Next, the MFP 10 performs normal Wi-Fi wireless setting WS2 associated with the priority information indicating the first priority, and WFD wireless setting WS3 associated with the priority information indicating the second priority. Are transmitted to the portable terminal 50 using NFC communication (S70).

  When the portable terminal 50 receives the response data from the MFP 10 (S204 in FIG. 4), the mobile terminal 50 identifies the normal Wi-Fi wireless setting WS2 associated with the priority information indicating the first priority (S206). Next, the portable terminal 50 determines YES in S208, and transmits a confirmation signal to the MFP 10 using normal Wi-Fi NW (S212). However, since the PS setting of the AP 4a is ON, the AP 4a does not transmit the confirmation signal to the MFP 10 even if the confirmation signal is received from the portable terminal 50. As a result, the portable terminal 50 does not receive the confirmation response signal, and determines NO in S214.

  Next, the portable terminal 50 specifies the WFD wireless setting WS3 associated with the priority information indicating the second priority (S206). In this case, the portable terminal 50 determines NO in S208, uses the WFD wireless setting WS3, connects to the MFP 10 that is a G / O device, and newly participates in the WFDNW (MFP = G / O) (S210). ). The subsequent operations of the MFP 10 and the portable terminal 50 are the same as those in the case A.

(Figure 8; Case D)
In case D, the MFP 10 belongs to the normal Wi-Fi NW formed by the AP 4a. In the normal Wi-Fi NW, the normal Wi-Fi wireless setting WS2 including the SSID “02” is used. The mobile terminal 50 belongs to the normal Wi-Fi NW formed by the AP 4b. In the normal Wi-Fi NW, the normal Wi-Fi wireless setting WS6 including the SSID “06” is used.

  When the print function is selected by the user (YES in S200 of FIG. 4), the portable terminal 50 transmits request data including a print instruction and the SSID “06” to the MFP 10 using NFC communication (FIG. 4). S202).

  When MFP 10 receives the request data from portable terminal 50 (YES in S10 of FIG. 2), it determines NO in S30 of FIG. 3, determines YES in S40, determines YES in S42, and determines NO in S44. To do. As a result, the MFP 10 shifts to the autonomous G / O mode and forms WFDNW (MFP = G / O) (S48). In WFDNW (MFP = G / O), WFD wireless setting WS3 is used. Next, the MFP 10 transmits response data including the WFD wireless setting WS3 and not including the normal Wi-Fi wireless setting WS2 to the portable terminal 50 using NFC communication (S60).

  When the portable terminal 50 receives the response data from the MFP 10 (S204 in FIG. 4), the portable terminal 50 specifies the WFD wireless setting WS3 (S206). Next, the mobile terminal 50 determines NO in S208, uses the WFD wireless setting WS3, connects to the MFP 10 that is a G / O device, and newly participates in the WFDNW (MFP = G / O) (S210). . The subsequent operations of the MFP 10 and the portable terminal 50 are the same as those in the case A.

(Effects of the first embodiment)
As shown in cases A and B of FIGS. 5 and 6, when the MFP 10 belongs to the WFDNW (MFP = G / O), the WFD wireless setting WS1 corresponding to the WFDNW (MFP = G / O) Is transmitted to the portable terminal 50. For this reason, the MFP 10 and the portable terminal 50 can appropriately execute communication of the target data by using WFDNW (MFP = G / O).

When the MFP 10 belongs to not only WFDNW (MFP = G / O) but also normal Wi-Fi NW, the MFP 10 is classified into case A and case B. That is, in case A in FIG. 5, since the MFP 10 and the portable terminal 50 belong to the same normal Wi-Fi NW, the MFP 10 has the normal Wi-Fi wireless setting WS4 corresponding to the normal Wi-Fi NW and the WFDNW (
WFD wireless setting WS1 corresponding to MFP = G / O) is transmitted to portable terminal 50. As a result, the MFP 10 and the portable terminal 50 can appropriately perform communication of the target data using the normal Wi-Fi NW or WFDNW (MFP = G / O). In particular, in case A, since the PS setting of the AP 4a is ON, the MFP 10 and the mobile terminal 50 cannot execute communication of target data using the normal Wi-Fi NW. However, the MFP 10 and the portable terminal 50 can appropriately execute communication of the target data by using WFDNW (MFP = G / O).

  In case B of FIG. 6, since the MFP 10 and the portable terminal 50 do not belong to the same normal Wi-Fi NW, the MFP 10 transmits the normal Wi-Fi wireless setting WS4 corresponding to the normal Wi-Fi NW to the portable terminal 50. Instead, the WFD wireless setting WS1 corresponding to WFDNW (MFP = G / O) is transmitted to the portable terminal 50. As a result, it is possible to suppress a decrease in the security of the normal Wi-Fi NW to which the MFP 10 belongs. Moreover, the MFP 10 and the portable terminal 50 can appropriately execute communication of the target data by using WFDNW (MFP = G / O).

  Further, as shown in case C of FIG. 7, the MFP 10 does not belong to WFDNW (MFP = G / O), but when it belongs to normal Wi-FiNW, WFDNW (MFP = G / O) Newly formed. Since the MFP 10 and the portable terminal 50 belong to the same normal Wi-Fi NW, the MFP 10 has a normal Wi-Fi wireless setting WS2 corresponding to normal Wi-Fi NW and a WFD wireless corresponding to WFDNW (MFP = G / O). The setting WS3 is transmitted to the portable terminal 50. As a result, the MFP 10 and the portable terminal 50 can appropriately perform communication of the target data using the normal Wi-Fi NW or WFDNW (MFP = G / O). In particular, in case C, since the PS setting of the AP 4a is ON, the MFP 10 and the mobile terminal 50 cannot execute communication of target data using the normal Wi-Fi NW. However, the MFP 10 and the portable terminal 50 can appropriately execute communication of the target data by using WFDNW (MFP = G / O).

  Further, as shown in case D of FIG. 8, since the MFP 10 and the portable terminal 50 do not belong to the same normal Wi-Fi NW, the MFP 10 carries the normal Wi-Fi wireless setting WS2 corresponding to the normal Wi-Fi NW. The WFD wireless setting WS3 corresponding to WFDNW (MFP = G / O) is transmitted to the portable terminal 50 without being transmitted to the terminal 50. For this reason, it is possible to suppress a decrease in the security of the normal Wi-Fi NW to which the MFP 10 belongs. Moreover, the MFP 10 and the portable terminal 50 can appropriately execute communication of the target data by using WFDNW (MFP = G / O).

(Correspondence)
The MFP 10 is an example of a “communication device”. The NFC I / F 22 and the wireless LAN I / F 20 of the MFP 10 are examples of the “first type interface of the communication device” and the “two types of interface of the communication device”, respectively. Further, the NFC I / F 62 and the wireless LAN I / F 60 of the portable terminal 50 are examples of the “first type interface of the portable terminal” and the “second type interface of the portable terminal”, respectively. The request data communicated in S10 of FIG. 2 and S202 of FIG. 4 and the SSID included in the request data are examples of “specific data” and “identification information”, respectively. The wireless setting included in the response data communicated in S12 of FIG. 2 and S204 of FIG. 4 is an example of “specific information”. The priority order information transmitted in S50 and S70 of FIG. 3 is an example of “instruction information”. Further, the G / O state is an example of a “parent station”, and the client state or a state of participating in a normal Wi-Fi NW is an example of a “slave station”.

In case A of FIG. 5, WFDNW (MFP = G / O), WFD wireless setting WS1, normal Wi-Fi NW, and normal Wi-Fi wireless setting WS4 are respectively “first wireless network” and “first information”. ], “Fourth wireless network”, and “fourth information”. 7 and 8, the normal Wi-Fi NW, the normal Wi-Fi wireless setting WS2, the WFDNW (MFP = G / O) formed by the MFP 10, and the WFD wireless setting WS3 are respectively “second”. No. wireless network ”,“ second information ”,“ third wireless network ”, and“ third information ”. The wireless network used in S22 of FIG. 2 and S218 of FIG. 4 is an example of “specific wireless network”. The case of YES in S30 of FIG. 3 and the case of YES in S42 are examples of “first case” and “second case”, respectively. Further, S60 executed through S50 or S36 in FIG. 3 is an example of processing executed by the “first information transmitting unit”. S70 is an example of a process executed by the “second information transmission unit”. S60 executed through S48 is an example of a process executed by the “third information transmission unit”.

  In cases A and B of FIGS. 5 and 6, normal Wi-Fi NW, normal Wi-Fi wireless setting WS4, WFDNW (MFP = G / O), and WFD wireless setting WS1 are “fifth wireless network”, It is an example of “fifth information”, “sixth wireless network”, and “sixth information”. 7 and 8, normal Wi-Fi NW, normal Wi-Fi wireless setting WS2, WFDNW formed by MFP 10 (MFP = G / O), and WFD wireless setting WS3 are “fifth”, respectively. ”Wireless network”, “fifth information”, “sixth wireless network”, and “sixth information”. The case of YES in S36 of FIG. 3 or the case of YES in S44 is an example of the “third case”. The case of NO in S36 or the case of NO in S44 is “the fourth case”. It is an example.

(Second embodiment)
In the present embodiment, the content of the response transmission process (S3) in S12 of FIG. 2 is different from that of the first embodiment. As described above, in the first embodiment, if the MFP 10 and the portable terminal 50 do not belong to the same normal Wi-Fi NW (NO in S36 of FIG. 3 or NO in S44), the MFP 10 performs the normal Wi-Fi wireless setting. It does not transmit to the portable terminal 50 (S60). If the MFP 10 and the portable terminal 50 do not belong to the same WFDNW (MFP = CL) (NO in S44), the MFP 10 does not transmit the WFD wireless setting corresponding to the WFDNW (MFP = CL) to the portable terminal 50 ( S60). On the other hand, in this embodiment, the MFP 10 supports all wireless networks that can execute communication of target data with the portable terminal 50 regardless of whether the MFP 10 and the portable terminal 50 belong to the same wireless network. All wireless settings to be transmitted are transmitted to the portable terminal 50.

  S130 and S132 in FIG. 9 are the same as S30 and S34 in FIG. In the case of YES in S132, the MFP 10 belongs to normal Wi-Fi NW and WFDNW (MFP = G / O). In this case, in S150, the first information transmission unit 41 executes the same processing as in S50 of FIG. In the case of NO in S132, the MFP 10 belongs to WFDNW (MFP = G / O). In this case, in S160, the first information transmission unit 41 executes the same process as in S60 of FIG.

  S134 is the same as S132. If YES in S134, the control unit 30 determines in S136 whether the MFP 10 belongs to WFDNW (MFP = CL). The determination method of S136 is the same as the determination method used in S42 of FIG. The forming unit 44 executes S138 if YES in S136, and executes S140 if NO in S136. S138 and S140 are the same as S46 (or S48) in FIG.

When S138 is executed, the MFP 10 belongs to normal Wi-Fi NW, WFDNW (MFP = CL), and WFDNW (MFP = G / O). In S170 executed through S138, the second information transmission unit 42 associates the normal Wi-Fi wireless setting corresponding to the normal Wi-Fi NW with the priority information indicating the first priority. First correspondence information is generated. The second information transmission unit 42 further generates second correspondence information in which the WFD wireless setting corresponding to WFDNW (MFP = CL) is associated with the priority information indicating the second priority. To do. The second information transmission unit 42 further includes third correspondence information in which the WFD wireless setting corresponding to WFDNW (MFP = G / O) and the priority information indicating the third priority are associated with each other. Is generated. Then, the second information transmission unit 42 generates response data including the first correspondence information, the second correspondence information, and the third correspondence information. In S170, the second information transmission unit 42 further transmits the generated response data to the portable terminal 50 via the NFC I / F 22.

  At the stage of S170, the portable terminal 50 cannot belong to WFDNW (MFP = G / O). This is because WFDNW (MFP = G / O) is a new WEDNW formed by the MFP 10 in S138. However, in the step of S170, there is a possibility that the portable terminal 50 belongs to the normal Wi-Fi NW or WFDNW (MFP = CL). Therefore, in this embodiment, in S170, response data is generated so that the priority order of normal Wi-Fi NW and WFDNW (MFP = CL) is higher than the priority order of WFDNW (MFP = G / O). . Accordingly, it is possible to increase the possibility that the mobile terminal 50 does not need to execute the connection process of S210 in FIG. In the modification, in S170, the second information transmitting unit 42 sets the priority of WFDNW (MFP = CL) to the first priority, and the priority of normal Wi-FiNW to the second priority. As described above, response data may be generated.

  When S140 is executed, the MFP 10 belongs to normal Wi-Fi NW and WFDNW (MFP = G / O). S180 executed through S140 is the same as S70 in FIG. 3 in which normal Wi-Fi NW is adopted as the first priority.

  S142 is the same as S136. The formation unit 44 executes S144 if YES in S142, and executes S146 if NO in S142. S144 and S146 are the same as S46 (or S48) of FIG.

  When S144 is executed, the MFP 10 belongs to WFDNW (MFP = CL) and WFDNW (MFP = G / O). S190 executed through S144 is the same as S70 of FIG. 3 in which WFDNW (MFP = CL) is adopted as the first priority.

  When S146 is executed, the MFP 10 belongs to WFDNW (MFP = G / O). S160 executed through S146 is the same as S60 in FIG.

(Effect of the second embodiment)
In this embodiment, when the MFP 10 belongs to WFDNW (MFP = G / O) (YES in S130), the MFP 10 transmits the WFD wireless setting corresponding to WFDNW (MFP = G / O) to the portable terminal 50 ( S150, S160). For this reason, the MFP 10 and the portable terminal 50 can appropriately execute communication of the target data by using WFDNW (MFP = G / O). Further, when the MFP 10 does not belong to WFDNW (MFP = G / O) but belongs to another wireless network (normal Wi-Fi NW or WFDNW (MFP = CL)) (YES in S134) In step S142, a new WFDNW (MFP = G / O) is formed, and the wireless setting corresponding to the other wireless network (normal Wi-Fi wireless setting or WFDNW (MFP = CL)) is supported. WFD wireless setting) and WFD wireless setting corresponding to WFDNW (MFP = G / O) are transmitted to the portable terminal 50 (S170,
S180, S190). For this reason, the MFP 10 and the portable terminal 50 can appropriately execute the communication of the target data by using the other wireless network or the WFDNW (MFP = G / O). Even if the MFP 10 and the portable terminal 50 cannot execute the communication of the target data using the other wireless network, the MFP 10 and the portable terminal 50 have the WFDNW (MFP = G / O) can be used to appropriately execute communication of the target data.

(Correspondence)
The case of YES in S130 is an example of the “first case”. In other words, WFDNW (MFP = G / O) is an example of “first wireless network”. The case of YES in S134 or the case of YES in S142 is an example of the “second case”. That is, normal Wi-FiNW or WFDNW (MFP = CL) is an example of “second wireless network”. Further, the WFDNW (MFP = G / O) formed in S138, S140, or S146 is an example of the “third wireless network”. Further, S150 or S160 is an example of processing executed by the “first information transmission unit”. S170, S180, or S190 is an example of a process executed by the “second information transmission unit”.

  Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above. The modifications of the above embodiment are listed below.

(Modification 1) In case A of FIG. 5, the first information transmission unit 41 of the MFP 10 includes all information in the WFD wireless setting WS1 (that is, authentication method information, encryption method information, SSID, BSSID, and , Password) is transmitted to the portable terminal 50 (S50 in FIG. 3). Instead, the first information transmission unit 41 may transmit response data including a part of information (for example, SSID and password) in the WFD wireless setting WS1 to the mobile terminal 50. In this case, the communication execution unit 82 of the mobile terminal 50 performs an SSID search (that is, transmits a PReq signal) when the mobile terminal 50 should newly participate in the WFDNW (MFP = G / O). A PRes signal may be received from the MFP 10 that operates as a G / O device. The PRes signal includes information (ie, authentication method information, encryption method information, SSID, and BSSID) used in WFDNW (MFP = G / O). Thereby, the communication execution part 82 can acquire each information (namely, authentication system information, encryption system information, and BSSID) other than some information contained in response data, and newly participates in WFDNW. can do. That is, the “first information” may be all the information in the WFD wireless setting WS1 as in the above embodiment, or may be one of the WFD wireless settings WS1 as in the present modification. May be part information. Similarly, the “sixth information” may be all the information in the WFD wireless setting WS1, or may be a part of the information in the WFD wireless setting WS1.

(Modification 2) As in Modification 1, the “second information” may be all the information in the normal Wi-Fi wireless setting WS2 (see case C in FIG. 7) or normal Wi. -It may be a part of information of Fi wireless setting WS2. In case C of FIG. 7, since the MFP 10 and the mobile terminal 50 belong to the same normal Wi-Fi NW, the normal Wi-Fi wireless setting is already stored in the memory 74 of the mobile terminal 50. Accordingly, the second information transmission unit 42 transmits the continuous use information indicating that the wireless network to which the portable terminal 50 belongs is continuously used instead of transmitting the normal Wi-Fi wireless setting WS2 to the portable terminal 50. May be sent to. In the present modification, the continuous use information is an example of “second information”. Similarly, the “fifth information” may be all the information in the normal Wi-Fi wireless setting WS2, or may be a part of the information in the normal Wi-Fi wireless setting WS2. However, it may be continuous use information.

(Modification 3) As in Modification 1, the “third information” may be all information in the WFD wireless setting WS3 (see cases C and D in FIGS. 7 and 8). The information may be a part of the WFD wireless setting WS3. Similarly, the “sixth information” may be all the information in the WFD wireless setting WS3 or may be a part of the information in the WFD wireless setting WS3.

(Modification 4) As in Modification 1, the “fourth information” may be all information in the normal Wi-Fi wireless setting WS4 (see case A in FIG. 5), or normal Wi. -It may be a part of information of Fi wireless setting WS4. Similarly to the second modification, the first information transmission unit 41 may transmit the continuous use information to the portable terminal 50 instead of transmitting the normal Wi-Fi wireless setting WS4. In the present modification, the continuous use information is an example of “fourth information”. Similarly, the “fifth information” may be all the information in the normal Wi-Fi wireless setting WS4, or may be a part of the information in the normal Wi-Fi wireless setting WS4. However, it may be continuous use information.

(Modification 5) In S50, S70 of FIG. 3, S150, S170, S180, or S190 of FIG. 9, response data including priority order information indicating a priority order different from the priority order employed in the processing is provided. May be sent. For example, in S50 of FIG. 3, in the response data, the WFD wireless setting may be the first priority, and the normal Wi-Fi wireless setting may be the second priority. That is, in each of the above processes, the priority order indicated by the instruction information transmitted by the first and second information transmitting units 41 and 42 is not particularly limited.

(Modification 6) In S50, S70 of FIG. 3, S150, S170, S180, or S190 of FIG. 9, response data including a plurality of wireless settings may be transmitted without including priority information. In this case, the communication execution unit 82 of the portable terminal 50 may sequentially use each of a plurality of wireless settings included in the response data, for example, randomly. Generally speaking, the second information transmission unit 42 may transmit the second information and the third information to the mobile terminal, and the first information transmission unit 41 may transmit the first information and the fourth information. May be transmitted to the mobile terminal.

(Modification 7) When YES is obtained in S30 of FIG. 3, the MFP 10 may execute S60 without executing S32 to S36 and S50. That is, the first information transmission unit 41 may transmit the first information in the first case. Further, if NO in S30 of FIG. 3, the MFP 10 may skip S40 and execute S42. If YES in S42, the MFP 10 may skip S44 and execute S46 and S70. That is, the second information transmission unit 42 may transmit the second information and the third information in the second case. Generally speaking, in one technique disclosed in this specification, the device-side control unit includes a specific data receiving unit, a first information transmitting unit, a forming unit, a second information transmitting unit, and a device side. The communication execution part should just be provided at least.

(Modification 8) The MFP 10 executes S32 to S36, S50, and S60 when YES in S30 of FIG. 3, but does not execute communication of the target data with the portable terminal 50 when NO in S30. Also good. Further, the MFP 10 may execute S40 to S48, S60, and S70 without executing S30 to S36 and S50 of FIG. That is, generally speaking, in one technique disclosed in this specification, the device-side control unit includes at least a specific data receiving unit, a determination unit, an information transmission unit, and a device-side communication execution unit. That's fine.

(Modification 9) The communication execution unit 82 of the portable terminal 50 does not execute communication of the confirmation signal and the confirmation response signal (without executing S212 and S214 in FIG. 4), and performs a plurality of operations included in the response data. Communication of the target data may be attempted using a wireless network corresponding to any one of the wireless settings. In this case, when the communication of the target data fails, the communication execution unit 82 attempts to communicate the target data using a wireless network corresponding to another wireless setting of the plurality of wireless settings. Good. This modification is also an example of “using each of a plurality of wireless networks sequentially”.

(Modification 10) The “master station” is not limited to a WFDNW G / O device, but is in a state of managing each device belonging to a wireless network (for example, a state in which wireless communication between devices belonging to a wireless network can be relayed ) As long as it is in any state. In addition, the “slave station” is not limited to the client state of the WFDNW or the state belonging to the normal Wi-Fi NW, and may be in any state as long as it is managed by the master station of the wireless network. Good.

(Modification 11) The “first type interface” is not limited to an interface for executing NFC communication, but may be an interface for executing infrared communication, or for executing Bluetooth (registered trademark). Or an interface for executing Transfer Jet. Generally speaking, it is only necessary that the communication speed of the wireless communication through the second type interface is higher than the communication speed of the wireless communication through the first type interface.

(Modification 12) “First type interface” and “second type interface” are two interfaces (for example, two IC chips) configured separately as in the above-described embodiment. There may be one interface (for example, one IC chip) integrally formed.

(Modification 13) The “communication device” is not limited to the MFP 10, and other communication devices (for example, a printer, a scanner, a FAX device, a copier, a telephone, a desktop PC, a notebook PC, a tablet PC, a server, a mobile phone, a PDA) Terminal etc.). The “target data” is not limited to print data and scan data, and may be other data (for example, voice data, FAX data, etc.).

(Modification 14) In the above embodiment, the functions of the units 40 to 47 are realized by the CPU 32 of the MFP 10 executing the program (ie, software) in the memory 34. Instead, at least one of the units 40 to 47 may be realized by hardware such as a logic circuit. Similarly, at least one of the units 80 to 82 may be realized by hardware such as a logic circuit.

  The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

  2: communication system, 4a, 4b: AP, 10: MFP, 50: portable terminal, WS1 to WS6: wireless setting

Claims (15)

A communication device for executing communication of target data with a mobile terminal,
A first type interface for performing wireless communication with the portable terminal;
A second type interface for performing wireless communication with the portable terminal, wherein a communication speed of wireless communication via the second type interface is a communication speed of wireless communication via the first type interface. Faster than the second type interface,
A device-side control unit,
The device-side control unit
A specific data receiving unit for receiving specific data from the portable terminal via the first type interface;
When the specific data is received, in the first case where the communication device belongs to the first wireless network, the portable terminal performs wireless communication using the first wireless network. A first information transmitting unit that transmits first information to the portable terminal via the first type interface, wherein the first wireless network is a wireless unit that transmits the first information via the second type interface. The first information transmitting unit, which is a wireless network for executing communication;
When the specific data is received, in the second case where the communication device does not belong to the first wireless network but belongs to the second wireless network, a third wireless network is newly added. A forming unit for forming, wherein each of the second wireless network and the third wireless network is a wireless network for executing wireless communication via the second type interface; and
In the second case, the mobile terminal uses the second wireless network to execute wireless communication, and the mobile terminal uses the third wireless network to perform wireless communication. A second information transmitting unit that transmits third information for executing the command to the mobile terminal via the first type interface;
In the first case, the first wireless network is used to communicate the target data with the portable terminal, and in the second case, the second wireless network or the third wireless network is used. Using a network, a device-side communication execution unit that executes communication between the portable terminal and the target data;
A communication device comprising: Each of the first wireless network and the third wireless network is a wireless network in which the communication device operates as a master station,
The communication device according to claim 1, wherein the second wireless network is a wireless network in which the communication device operates as a slave station. The specific data includes identification information for identifying a wireless network to which the mobile terminal belongs,
The device-side control unit further includes:
In the second case, using the identification information, a first determination unit that determines whether the portable terminal belongs to the second wireless network,
The forming unit newly forms the third wireless network regardless of whether or not the mobile terminal belongs to the second wireless network in the second case,
In the second case, the second information transmission unit obtains the second information and the third information when it is determined that the portable terminal belongs to the second wireless network. , Transmitted to the mobile terminal via the first type interface,
The device-side control unit further includes:
In the second case, when it is determined that the mobile terminal does not belong to the second wireless network, the third information is transmitted to the first type without transmitting the second information. A third information transmission unit for transmitting to the mobile terminal via the interface of
The device-side communication execution unit
In the second case, when it is determined that the portable terminal belongs to the second wireless network, the portable terminal is connected to the portable terminal using the second wireless network or the third wireless network. Performing communication of the target data;
In the second case, when it is determined that the portable terminal does not belong to the second wireless network, communication of the target data with the portable terminal is performed using the third wireless network. The communication device according to claim 1 or 2.   The second information transmission unit further preferentially uses the second wireless network compared to the third wireless network when the second information and the third information are to be transmitted. The communication apparatus according to claim 3, wherein instruction information for instructing the portable terminal to transmit is transmitted to the portable terminal via the first type interface. The specific data includes identification information for identifying a wireless network to which the mobile terminal belongs,
The device-side control unit further includes:
In the first case, when the communication device belongs not only to the first wireless network but also to a fourth wireless network, the mobile terminal uses the identification information to A second determination unit for determining whether the wireless network belongs to the wireless network, wherein the fourth wireless network is a wireless network for executing wireless communication via the second type interface; The second determination unit;
The first information transmission unit includes:
In the first case, when it is determined that the portable terminal belongs to the fourth wireless network, the first information and the portable terminal wirelessly use the fourth wireless network. 4th information for performing communication is transmitted to the portable terminal via the first type interface,
In the first case, when it is determined that the portable terminal does not belong to the fourth wireless network, the first information is transmitted to the first type without transmitting the fourth information. To the mobile device via the interface of
The device-side communication execution unit
In the first case, when it is determined that the portable terminal belongs to the fourth wireless network, the portable terminal is connected to the portable terminal using the first wireless network or the fourth wireless network. Performing communication of the target data;
In the first case, when it is determined that the portable terminal does not belong to the fourth wireless network, communication of the target data with the portable terminal is performed using the first wireless network. The communication device according to any one of claims 1 to 4.   The communication device according to claim 5, wherein the fourth wireless network is a wireless network in which the communication device operates as a slave station.   The first information transmission unit preferentially uses the fourth wireless network as compared with the first wireless network when the first information and the fourth information are to be transmitted. The communication device according to claim 5 or 6, wherein instruction information for instructing the portable terminal to transmit is transmitted to the portable terminal via the first type interface. The device-side communication execution unit is a specific wireless network among a plurality of wireless networks including the first, second, and third wireless networks, and includes the communication device and the mobile terminal. When receiving a confirmation signal from the mobile terminal using the specific wireless network to which both belong, using the specific wireless network, transmitting an acknowledgment signal for the confirmation signal,
The device-side communication execution unit executes communication of the target data with the portable terminal using the specific wireless network used for communication of the confirmation signal and the confirmation response signal. The communication device according to any one of the above. The first information includes wireless setting information for performing wireless communication using the first wireless network,
The second information includes wireless setting information for performing wireless communication using the second wireless network,
The communication apparatus according to any one of claims 1 to 8, wherein the third information includes wireless setting information for performing wireless communication using the third wireless network. A communication device for executing communication of target data with a mobile terminal,
A first type interface for performing wireless communication with the portable terminal;
A second type interface for performing wireless communication with the portable terminal, wherein a communication speed of wireless communication via the second type interface is a communication speed of wireless communication via the first type interface. Faster than the second type interface,
A device-side control unit,
The device-side control unit
A specific data receiving unit that receives specific data from the portable terminal via the first type interface, wherein the specific data includes identification information for identifying a wireless network to which the portable terminal belongs. Including the specific data receiving unit;
Whether the portable terminal belongs to the fifth wireless network using the identification information when the specific data is received and the communication device belongs to the fifth wireless network. The fifth wireless network is a wireless network for the communication device to operate as a slave station and to perform wireless communication via the second type interface. The determination unit;
Fifth information for the mobile terminal to perform wireless communication using the fifth wireless network in a third case where the mobile terminal is determined to belong to the fifth wireless network; , The mobile terminal transmits sixth information for performing wireless communication using a sixth wireless network to the mobile terminal via the first type interface,
In the fourth case where it is determined that the mobile terminal does not belong to the fifth wireless network, the sixth information is transmitted via the first type interface without transmitting the fifth information. An information transmitting unit for transmitting to the portable terminal,
The sixth wireless network is a wireless network for allowing the communication device to operate as a master station and perform wireless communication via the second type interface, and the information transmission unit;
In the third case, the target data is communicated with the portable terminal using the fifth wireless network or the sixth wireless network, and in the fourth case, the sixth wireless network is used. Using a network, a device-side communication execution unit that executes communication between the portable terminal and the target data;
A communication device comprising: A portable terminal for executing communication between a communication device and target data,
A first type interface for performing wireless communication with the communication device;
A second type interface for performing wireless communication with the communication device, wherein a communication speed of wireless communication via the second type interface is a communication speed of wireless communication via the first type interface. Faster than the second type interface,
A terminal-side control unit,
The terminal side control unit
Specific data transmitting unit for transmitting specific data to the communication device via the first type interface;
An information receiving unit for receiving, from the communication device, specific information for the mobile terminal to perform wireless communication using a wireless network from the communication device via the first type interface after the specific data is transmitted; ,
The specific information includes one piece of information for the portable terminal to perform wireless communication using one wireless network, and wirelessly uses another wireless network different from the one wireless network. When other information for executing communication is not included, using the one wireless network, communication between the communication device and the target data is performed,
When the specific information includes a plurality of information including the one information and the other information, each of the plurality of wireless networks including the one wireless network and the other wireless network is determined. A terminal-side communication execution unit that executes communication between the communication device and the target data by using sequentially,
Each of the plurality of wireless networks is a wireless network for performing wireless communication via the second type interface, the terminal-side communication execution unit,
A mobile terminal comprising: When the specific information includes the plurality of information, the terminal-side communication execution unit sequentially uses each of the plurality of wireless networks, and transmits a confirmation signal to the communication device,
The terminal-side communication execution unit uses the specific wireless network of the plurality of wireless networks and receives the confirmation response signal for the confirmation signal from the communication device. The mobile terminal according to claim 11, wherein communication is performed between the mobile terminal and the target data. A computer program for a communication device for executing communication between a portable terminal and target data,
The communication device
A first type interface for performing wireless communication with the portable terminal;
A second type interface for performing wireless communication with the portable terminal, wherein a communication speed of wireless communication via the second type interface is a communication speed of wireless communication via the first type interface. Faster than the second type interface,
The computer program stores the following processes in a computer installed in the communication device, that is,
Specific data reception processing for receiving specific data from the portable terminal via the first type interface;
When the specific data is received, in the first case where the communication device belongs to the first wireless network, the portable terminal performs wireless communication using the first wireless network. 1st information transmission process which transmits 1st information to the said portable terminal via the said 1st type interface, Comprising: The said 1st wireless network is a radio | wireless via the said 2nd type interface. The first information transmission process, which is a wireless network for executing communication;
When the specific data is received, in the second case where the communication device does not belong to the first wireless network but belongs to the second wireless network, a third wireless network is newly added. Forming process to be formed, wherein each of the second wireless network and the third wireless network is a wireless network for performing wireless communication via the second type interface;
In the second case, the mobile terminal uses the second wireless network to execute wireless communication, and the mobile terminal uses the third wireless network to perform wireless communication. A second information transmission process for transmitting the third information for executing to the portable terminal via the first type interface;
In the first case, the first wireless network is used to communicate the target data with the portable terminal, and in the second case, the second wireless network or the third wireless network is used. A device side communication execution process for executing communication between the portable terminal and the target data using a network;
A computer program that executes A computer program for a communication device for executing communication between a portable terminal and target data,
The communication device
A first type interface for performing wireless communication with the portable terminal;
A second type interface for performing wireless communication with the portable terminal, wherein a communication speed of wireless communication via the second type interface is a communication speed of wireless communication via the first type interface. Faster than the second type interface,
The computer program stores the following processes in a computer installed in the communication device, that is,
Specific data reception processing for receiving specific data from the portable terminal via the first type interface, wherein the specific data includes identification information for identifying a wireless network to which the portable terminal belongs; Including the specific data receiving process,
Whether the portable terminal belongs to the fifth wireless network using the identification information when the specific data is received and the communication device belongs to the fifth wireless network. The fifth wireless network is a wireless network for the communication apparatus to operate as a slave station and to perform wireless communication via the second type interface. The determination process;
Fifth information for the mobile terminal to perform wireless communication using the fifth wireless network in a third case where the mobile terminal is determined to belong to the fifth wireless network; , The mobile terminal transmits sixth information for performing wireless communication using a sixth wireless network to the mobile terminal via the first type interface,
In the fourth case where it is determined that the mobile terminal does not belong to the fifth wireless network, the sixth information is transmitted via the first type interface without transmitting the fifth information. Information transmission processing to be transmitted to the mobile terminal,
The sixth wireless network is the information transmission process, wherein the communication device is a wireless network for performing wireless communication via the second type interface by operating as a master station;
In the third case, the target data is communicated with the portable terminal using the fifth wireless network or the sixth wireless network, and in the fourth case, the sixth wireless network is used. A device side communication execution process for executing communication between the portable terminal and the target data using a network;
A computer program that executes A computer program for a portable terminal for executing communication between a communication device and target data,
The portable terminal is
A first type interface for performing wireless communication with the communication device;
A second type interface for performing wireless communication with the communication device, wherein a communication speed of wireless communication via the second type interface is a communication speed of wireless communication via the first type interface. Faster than the second type interface,
The computer program stores the following processes on a computer mounted on the mobile terminal, that is,
Specific data transmission processing for transmitting specific data to the communication device via the first type interface;
An information receiving process in which, after the specific data is transmitted, the mobile terminal receives specific information for performing wireless communication using a wireless network from the communication device via the first type interface; ,
The specific information includes one piece of information for the portable terminal to perform wireless communication using one wireless network, and wirelessly uses another wireless network different from the one wireless network. When other information for executing communication is not included, using the one wireless network, communication between the communication device and the target data is performed,
When the specific information includes a plurality of information including the one information and the other information, each of the plurality of wireless networks including the one wireless network and the other wireless network is determined. It is a terminal side communication execution process for performing communication between the communication device and the target data using sequentially,
Each of the plurality of wireless networks is a wireless network for executing wireless communication via the second type interface, the terminal side communication execution processing,
A computer program that executes

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