JP7347588B2 - Communication equipment and mobile terminals - Google Patents

Description

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

Patent Document 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 a terminal device via a wireless LAN. The first wireless communication device performs data communication with the second wireless communication device using NFC. In this case, the first wireless communication device transmits participation information for participating in the above wireless LAN to the second wireless communication device using NFC. If the terminal device is an access point, the participation information includes communication standard information, ESS-ID, MAC address, security information, etc. of the access point. The second wireless communication device uses the participation information to participate in the wireless LAN. The first and second wireless communication devices perform data communication via a wireless LAN via a terminal device that is an access point.

Japanese Patent Application Publication No. 2010-245748

In the technology of Patent Document 1, if the second wireless communication device participates in the wireless LAN using participation information, the first and second wireless communication devices can perform data communication via the terminal device. It is a premise. However, such data communication may not be performed properly. This specification discloses a technique that allows a communication device and a mobile terminal to appropriately communicate target data.

One technique disclosed in this specification is a communication device for communicating target data with a mobile terminal. The communication device includes a first type interface for performing wireless communication with the mobile terminal, and a second type interface for performing wireless communication with the mobile terminal, and the wireless communication via the second type interface. includes a second type interface whose communication speed is faster than the communication speed of wireless communication via the first type interface, and a device-side control unit. The device-side control section includes a specific data reception section, a first information transmission section, a formation section, a second information transmission section, and a device-side communication execution section. The specific data receiving unit receives specific data from the mobile terminal via the first type of interface. The first information transmitting unit is configured to allow the mobile terminal to perform wireless communication using the first wireless network in a first case where the communication device belongs to the first wireless network when the specific data is received. First information for execution is transmitted to the mobile terminal via the first type of interface. The first wireless network is a wireless network for performing wireless communication via the second type of interface. The forming unit is configured to create a new third wireless network in a second case where the communication device does not belong to the first wireless network but belongs to the second wireless network when the specific data is received. 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 of interface. In the second case, the second information transmission unit transmits second information for the mobile terminal to perform wireless communication using the second wireless network, and information for the mobile terminal to use the third wireless network. and third information for performing wireless communication to the mobile terminal via the first type of interface. In the first case, the device-side communication execution unit executes communication of the target data with the mobile terminal using the first wireless network, and in the second case, the device-side communication execution unit executes communication of the target data with the mobile terminal using the first wireless network. Execute communication between the mobile terminal and the target data using the network.

According to the above configuration, the communication device transmits the first information to the mobile terminal in the first case belonging to the first wireless network. For this purpose, the communication device and the mobile terminal can appropriately communicate target data using the first wireless network. Further, in a second case where the communication device does not belong to the first wireless network but belongs to the second wireless network, the communication device newly forms a third wireless network and transfers the second information and the second wireless network. Send the information in step 3 to the mobile terminal. For this purpose, the communication device and the mobile terminal can appropriately communicate target data using the second wireless network or the third wireless network. Even if the communication device and the mobile terminal cannot communicate the target data using the second wireless network, the communication device and the mobile terminal can use the third wireless network formed by the communication device. Communication of target data can be carried out appropriately by using.

In one technique disclosed in this specification, a device-side control section of a communication device may include a specific data reception section, a determination section, an information transmission section, and a device-side communication execution section. The specific data receiving unit receives specific data from the mobile terminal via the first type of interface. The specific data includes identification information for identifying the wireless network to which the mobile terminal belongs. The determination unit determines whether or not the mobile terminal belongs to the fifth wireless network using the identification information when the communication device belongs to the fifth wireless network when the specific data is received. to decide. The fifth wireless network is a wireless network in which the communication device operates as a slave station and performs wireless communication via the second type of interface. The information transmitter is configured to transmit 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. and 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 information to the fifth wireless network. In the fourth case where it is determined that the mobile terminal does not belong to the network, the sixth information is transmitted to the mobile terminal via the first type of interface without transmitting the fifth information. The sixth wireless network is a wireless network in which the communication device operates as a master station and performs wireless communication via the second type of interface. In the third case, the device side communication execution unit executes communication of the target data with the mobile terminal using the fifth wireless network or the sixth wireless network, and in the fourth case, the device side communication execution unit executes communication of the target data with the mobile terminal using the fifth wireless network or the sixth wireless network. Execute communication between the mobile terminal and the target data using the network.

According to the above configuration, in the third case where it is determined that the mobile terminal belongs to the fifth wireless network in which the communication device operates as a slave station, the communication device is configured to collect the fifth information and the sixth information. is sent to the mobile device. For this purpose, the communication device and the mobile terminal can appropriately communicate target data using the fifth wireless network or the sixth wireless network. Even if the communication device and the mobile terminal are unable to communicate the target data using the fifth wireless network, the communication device and the mobile terminal can use the sixth wireless network where the communication device operates as a master station. Communication of target data can be appropriately performed using a wireless network. Furthermore, 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 purpose, the communication device and the mobile terminal can appropriately communicate the target data using the sixth wireless network. Furthermore, it is possible to suppress the security of the fifth wireless network from deteriorating.

One technique disclosed in this specification is a mobile terminal for communicating target data with a communication device. The mobile terminal has a first type of interface for performing wireless communication with the communication device and a second type of interface for performing wireless communication with the communication device, and the mobile terminal has a first type of interface for performing wireless communication with the communication device, and the mobile terminal has a first type of interface for performing wireless communication with the communication device, and the mobile terminal has a first type of interface for performing wireless communication with the communication device. includes a second type interface whose communication speed is faster than the communication speed of wireless communication via the first type interface, and a terminal side control unit. The terminal-side control section includes a specific data transmission section, an information reception section, and a terminal-side communication execution section. The specific data transmitter 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 is configured such that the specific information includes one piece of information for the mobile terminal to execute wireless communication using one wireless network, and the specific information includes one piece of information for the mobile terminal to execute wireless communication using one wireless network, and the specific information includes one piece of information for the mobile terminal to execute wireless communication using one wireless network, and the terminal side communication execution unit communication between the communication device and the target data using one wireless network, and the specific information is one piece of information and other information. When the communication device includes a plurality of pieces of information including the information of . Each of the plurality of wireless networks is a wireless network for performing wireless communication via the second type of interface.

According to the above configuration, when the specific information includes one piece of information, the mobile terminal uses one wireless network to communicate target data with the communication device. For this reason, the mobile terminal and the communication device can appropriately communicate target data using the one wireless network described above. Further, when the specific information includes a plurality of pieces of information, the mobile terminal sequentially uses each of the plurality of wireless networks to communicate the target data with the communication device. Even if the mobile terminal and communication device cannot communicate the target data using one of the multiple wireless networks, the mobile terminal and the communication device Communication of the target data may be appropriately performed using another one of the wireless networks.

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

The configuration of the communication system is shown. 3 shows a flowchart of communication processing of the MFP. A flowchart of response transmission processing of the MFP is shown. 5 shows a flowchart of application processing on a mobile terminal. 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. A flowchart of response transmission processing according to the second embodiment is shown.

(First example)
(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") 4a, 4b and a personal computer (hereinafter referred to as "PC"). ) 6 and a multi-function device (hereinafter referred to as ``MFP (Multi-F
(abbreviation for peripheral) 10 and a mobile terminal 50.

(Types of wireless communication that MFP10 can perform)
The MFP10 performs wireless communication according to the NFC (abbreviation for Near Field Communication) method, wireless communication according to the WFD (abbreviation for Wi-Fi Direct) method, and wireless communication according to the normal Wi-Fi method. It is possible. Hereinafter, wireless communication according to each of the above methods will be referred to as "NFC communication,""WFDcommunication," and "normal Wi-Fi communication," respectively.

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

(WFD communication)
The WFD method is based on the standard document “Wi-Fi
This is a wireless communication method described in "Peer-to-Peer (P2P) Technical Specification Version 1.1". The WFD method is a wireless system based on, for example, the IEEE (Institute of Electrical and Electronics Engineers, Inc.) 802.11 standard and its equivalent standards (e.g., 802.11a, 11b, 11g, 11n, etc.). It is a wireless communication method for performing communications.

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

Hereinafter, devices capable of performing WFD communication, such as the MFP 10 and the mobile terminal 50, will be referred to as "WFD compatible devices." In the WFD standard described above, three states are defined as the states of a WFD compatible device: Group Owner state (hereinafter referred to as "G/O state"), client state, and device state. A WFD compatible device can selectively operate in one of the above three states.

When a pair of WFD compatible devices in a device state is to 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 will be in the G/O state, and the other of the pair of WFD compatible devices will be in the client state. A WFD network is formed by a device in a G/O state (hereinafter referred to as a "G/O device") and a device in a client state (hereinafter referred to as a "CL device"). In a WFD network, one G/O device and one or more CL devices may exist. A G/O device manages one or more CL devices. Specifically, the G/O device performs authentication for each of one or more CL devices, and if the authentication of the CL device is successful, the G/O device authenticates the CL device's identification information (i.e., MAC address). ) is written in the management list in the memory of the G/O device. When a 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 perform wireless communication of target data with the CL devices registered in the management list without going through a relay device. However, the G/O device can perform 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 is not possible. 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 a "PReq signal"), a Probe Response signal (hereinafter referred to as a "PRes signal"), etc. Contains physical layer data. Note that the G/O device can relay wireless communication of target data between multiple 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 the device state. A device in the device state can perform wireless communication of the above participating data to belong to the WFD network with the G/O device, but it can perform wireless communication of the above target data with the G/O device or CL device. It's impossible.

As described above, in the WFD network, a pair of WFD compatible devices can perform WFD communication of target data without going through an AP that is configured separately from these WFD compatible devices. That is, WFD communication can be said to be wireless communication that does not go through an AP.

Note that in the following, although it is not possible to selectively operate in one of the three states (i.e., G/O state, client state, device state) defined in the above WFD standard, A device that can perform wireless communication via an AP (that is, normal Wi-Fi communication to be described later) is referred to as a "WFD non-compatible device." A "WFD non-compatible device" is also called a "legacy device." A device in the G/O state can write identification information of a device that does not support WFD in the management list. In this case, the WFD-incompatible device can participate in the WFD network as a CL device.

(Normal Wi-Fi communication)
The normal Wi-Fi method is a wireless communication method defined by the Wi-Fi Alliance, and is different from the WFD method. Like the WFD method, the normal Wi-Fi method is a wireless method for performing wireless communication in accordance with the IEEE 802.11 standard and standards equivalent to it (e.g., 802.11a, 11b, 11g, 11n, etc.). It is a communication method. However, as described above, the WFD method is a wireless communication method for performing wireless communication not via an AP. On the other hand, the normal Wi-Fi method is a wireless communication method for performing wireless communication via an AP. In this point, the WFD method differs from the normal Wi-Fi method.

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

A Wi-Fi network is usually a wireless network built in an environment where an AP can be installed, such as a company LAN or a home LAN, and generally speaking, it is a wireless network that should be formed on a regular basis. . On the other hand, a WFD network is a wireless network that is constructed to perform temporary wireless communication between a pair of WFD compatible devices, for example, because it does not require an AP. It is a wireless network that is to be temporarily formed. In this way, this embodiment assumes a situation in which the normal Wi-Fi network is a wireless network that should be formed on a regular basis, and the WFD network is a wireless network that should be formed temporarily. Note that hereinafter, the WFD network and normal Wi-Fi network will be referred to as "WFDNW" and "normal Wi-FiNW."

(Configuration of MFP10)
The MFP 10 is capable of performing 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 will be referred to as “I/F”). ) 20, an NFC I/F 22, and a control unit 30. Each part 12 to 30 is connected to a bus line (numerals 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 printing execution unit 16 is a printing mechanism using an inkjet method, a laser method, or the like. 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 performing 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 has a MAC address used for WFD communication (hereinafter referred to as "WFD MAC address") and a MAC address normally used for Wi-Fi communication (hereinafter referred to as "normal Wi-Fi MAC address"). (referred to as "MAC address"). Specifically, the wireless LAN I/F 20 is normally assigned a Wi-Fi MAC address in advance. 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 perform 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 perspective 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 that uses the WFD MAC address of MFP 10, and normal Wi-Fi communication is wireless communication that uses the normal Wi-Fi MAC address of MFP 10. Further, 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.

NFC I/F 22 is an interface for performing NFC communication. A chip that configures the NFC I/F 22 and a chip that configures the wireless LAN I/F 20 are physically different.

The communication speed of wireless communication via wireless LAN I/F20 (for example, the maximum communication speed is 11 to 600 Mbps) is higher than the communication speed of wireless communication via NFC I/F22 (for example, the maximum communication speed is 100 to 424 Kbps). It's also fast. Furthermore, the carrier wave frequency (e.g., 2.4 GHz band, 5.0 GHz band) in wireless communication via the wireless LAN I/F20 is the same as the carrier wave frequency (e.g., 13.56 MHz band) in wireless communication via the NFC I/F22. It is different from. Further, for example, when the distance between the MFP 10 and the mobile terminal 50 is approximately 10 cm or less, the control unit 30 can perform NFC communication with the mobile terminal 50 via the NFC I/F 22. On the other hand, regardless of whether the distance between the MFP 10 and the mobile terminal 50 is 10 cm or less or 10 cm or more (for example, up to about 100 m), the control unit 30 can control the mobile terminal 50 via the wireless LAN I/F 20. It is possible to perform WFD communication and normal Wi-Fi communication with the terminal 50. That is, the maximum distance at which the MFP 10 can perform wireless communication with a destination device (for example, the mobile terminal 50) via the wireless LAN I/F 20 is
This distance is greater than the maximum distance that can be used to communicate wirelessly with the target device.

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

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

Note that the MFP 10 can form a state in which 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 a device in the same state. That is, while the MFP 10 belongs to one WFDNW as a G/O device, it cannot belong to another WFDNW as a G/O device. Furthermore, while the MFP 10 belongs to one WFDNW as a CL device, it cannot belong to another WFDNW as a CL device. When the MFP 10 belongs to the first and second WFDNWs simultaneously, the memory 34 stores the first WFD belonging information corresponding to the first WFDNW and the second WFD belonging information corresponding to the second WFDNW. Stores both affiliation information and.

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

When forming a WFDNW, the G/O device usually prepares WFD wireless settings and supplies the WFD wireless settings to the CL device. For example, the control unit 30 of the MFP 10 prepares WFD wireless settings when forming a WFDNW in which the MFP 10 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 generating a new password. The control unit 30 prepares an SSID by preparing a predetermined SSID or by newly generating an SSID. Further, the control unit 30 prepares a predetermined WFD MAC address as a BSSID.

Therefore, when the MFP 10 belongs to a WFDNW as a G/O device, the WFD affiliation information corresponding to the WFDNW includes the WFD wireless settings prepared by the MFP 10 when the MFP 10 forms the WFDNW. On the other hand, if the MFP 10 belongs to a WFDNW as a CL device, the WFD affiliation information corresponding to the WFDNW is changed by the G/O device when a G/O device different from the MFP 10 forms the WFDNW. Contains the prepared WFD radio settings (ie, the WFD radio settings obtained from the G/O device).

Further, 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 normal Wi-Fi wireless settings for executing normal Wi-Fi communication using the normal Wi-Fi NW. Normal Wi-Fi wireless settings usually include authentication method information, encryption method information, SSID, BSSID, and password. The SSID included in the normal Wi-Fi wireless settings is a network identifier for identifying the normal Wi-Fi NW. The BSSID normally included in the Wi-Fi wireless settings is a unique identifier (for example, the MAC address of the AP) assigned to the AP that normally forms the Wi-Fi NW.

The MFP 10 typically participates in the Wi-FiNW 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 PRes signals from each of the APs 4a and 4b existing around the MFP 10. The PRes signal includes authentication method information indicating the authentication method used by the AP that is the source of the PRes signal, encryption method information indicating the encryption method used by the AP, and information about the encryption method used by the AP. Contains SSID and BSSID. Next, the control unit 30 causes the display unit 14 to display the 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 the plurality of SSIDs. The user further uses the operation unit 12 to input a password.

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

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

The mobile terminal 50 includes an operation section 52, a display section 54, a wireless LAN I/F 60, an NFC I/F 62, and a control section 70. Each part 52 to 70 is connected to a bus line (numerals omitted). The operation unit 52 includes a plurality of keys. The user can input various instructions into the mobile 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 performing WFD communication and normal Wi-Fi communication. NFC I/F62 is an interface for performing 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 programs stored in the memory 74. The programs in memory 74 include an application 76 for causing MFP 10 to perform various functions (eg, print function, scan function, etc.). For example, the application 76 may be installed on the mobile terminal 50 from a server provided by the vendor of the MFP 10, or may be installed on the mobile terminal 50 from a medium shipped with the MFP 10. The functions of each part 80 to 82 are realized by the CPU 72 executing processing according to the application 76.

Note that, unlike the MFP 10, the mobile terminal 50 cannot belong to a WFDNW and a normal Wi-FiNW at the same time. Further, the mobile terminal 50 cannot belong to two WFDNWs at the same time. When the mobile terminal 50 belongs to a WFDNW or a normal Wi-Fi NW, the memory 34 stores WFD affiliation information or normal Wi-Fi affiliation information, similarly to the MFP 10.

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

The differences between the WFD G/O device and normal APs (ie, each AP 4a, 4b) are as follows. A WFD G/O device can operate in a state different from the G/O state (ie, client state) when it leaves the WFDNW to which it belongs and newly belongs to another WFDNW. On the other hand, a normal AP performs a relay function no matter which normal Wi-FiNW it forms. That is, a normal AP can only perform the same operations as a WFD G/O device, and cannot perform the same operations as a WFD CL device.

Note that 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, when the PS setting of the AP 4a is OFF, the AP 4a can perform 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 perform the router function, but cannot perform the relay function. In this way, when the PS setting of AP4a is ON, data communication is not performed between a pair of devices belonging to the normal Wi-FiNW formed by AP4a, so it is possible to increase the security of the normal Wi-FiNW. I can do it.

(Communication processing executed by MFP10)
Next, with reference to FIG. 2, the contents of the communication process executed by the MFP 10 will be described. 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 capable of performing NFC communication (ie, the mobile terminal 50). The user of the mobile terminal 50 brings the mobile terminal 50 close to the MFP 10 after performing an operation to select a print function or a scan function. As a result, the distance between the mobile terminal 50 and the MFP 10 becomes smaller than the distance at which radio waves can reach each other (for example, 10 cm). In this case, the NFC I/F 62 of the mobile terminal 50 receives the detection 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 MFP 10 and mobile terminal 50. Mobile terminal 50 transmits request data to MFP 10 using an NFC communication session.

As shown in S10, the specific data receiving unit 40 of the MFP 10 monitors the reception of request data from the mobile terminal 50 (S10). When receiving 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. Note that when the print function is selected by the user of the mobile terminal 50, the request data includes a print instruction. On the other hand, when the scan function is selected by the user of the mobile terminal 50, the request data includes a scan instruction. Further, if the mobile terminal 50 belongs to a WFDNW or a normal Wi-FiNW, the request data further includes the SSID of the wireless network to which the mobile terminal 50 belongs. If the mobile terminal 50 does not belong to either the WFDNW or the normal Wi-FiNW, the request data does not include the SSID.

(Response transmission process; Figure 3)
In S12, the control unit 30 executes a response transmission process. Note that, hereinafter, the WFDNW in which the MFP 10 operates as a G/O device will be referred to as "WFDNW (MFP=G/O)". Further, the WFDNW in which the MFP 10 operates as a CL device is written as "WFDNW (MFP=CL)".

As shown in FIG. 3, in S30, the control unit 30 determines whether the MFP 10 belongs to the 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 the WFDNW (MFP=G/O)). Then, the process proceeds to S40. Furthermore, when two pieces of WFD affiliation information are stored in the memory 34, the control unit 30 determines that the MFP 10 belongs to the first WFDNW (MFP=G/O) and that the MFP 10 belongs to the second WFDNW. If it belongs to WFDNW (MFP=CL), it is determined YES in S30 (that is, the MFP 10 belongs to WFDNW (MFP=G/O)), and the process advances to S32. Further, when one piece of WFD affiliation information is stored in the memory 34, the control unit 30 determines whether the status value included in the WFD affiliation information is a value indicating the G/O status. confirm. If the status value is a value indicating the G/O status, the control unit 30 determines YES in S30 and proceeds to S32, and if the status value is a value indicating the client status, the control unit 30 determines NO in S30. After determining that, 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 determining unit 46 determines YES in S32 and proceeds to S34, and if the request data does not include the SSID, determines NO in S32 and proceeds to S60. Proceed to.

In S34, the second determination unit 46 determines whether the MFP 10 belongs to the normal Wi-FiNW. 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). It is determined that this is the case, and the process proceeds to S36. If the normal Wi-Fi affiliation information is not stored in the memory 34, the second judgment unit 46 judges NO in S34 (that is, the MFP 10 does not belong to the normal Wi-Fi NW), and in S60 Proceed to.

In S36, the second determination unit 46 determines whether the MFP 10 and the mobile terminal 50 belong to the same normal Wi-Fi NW. Specifically, the second determination unit 46 determines whether the SSID included in the normal Wi-Fi affiliation information in the memory 34 and the SSID included in the request data match. If the second determining unit 46 determines that the two SSIDs match, it determines YES in S36 (that is, the MFP 10 and the mobile terminal 50 belong to the same normal Wi-Fi NW), and proceeds to S50. . On the other hand, if the second determining unit 46 determines that the two SSIDs do not match, it determines NO in S36 (that is, the MFP 10 and the mobile terminal 50 do not belong to the same normal Wi-Fi NW). , proceed to S60.

In S50, the first information transmitter 41 first generates response data. Specifically, the first information transmitter 41 determines that the normal Wi-Fi wireless settings included in the normal Wi-Fi affiliation information in the memory 34 correspond to the priority information indicating the first priority. The attached first correspondence information is generated. Next, the first information transmitter 41 transmits WFD affiliation information (hereinafter referred to as "WFD affiliation information for G/O") including a status value indicating the G/O status from among the one or more pieces of WFD affiliation information in the memory 34. ). The first information transmitting unit 41 then transmits second correspondence information in which the WFD wireless settings included in the G/O WFD affiliation information are associated with priority information indicating the second priority. generate. The first information transmitter 41 generates response data including first correspondence information and second correspondence information. In S50, the first information transmitting unit 41 further transmits the generated response data to the mobile terminal 50 via the NFC I/F 22. In Figure 3, the wireless settings, first priority, and second priority are written as "WS (abbreviation for Wireless Setting)," "(1)," and "(2)," respectively. ing.

Note that, 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 reason, the mobile terminal 50 preferentially uses the normal Wi-FiNW in the application processing shown in FIG. 4, which will be described later. At this time, since the mobile terminal 50 already belongs to the normal Wi-FiNW, 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 mobile terminal 50 can be reduced.

In S60, which is executed in the case of NO in S32, S34, or S36, the first information transmitting unit 41 specifies G/O WFD affiliation information among the one or more pieces of WFD affiliation information in the memory 34. do. Then, the first information transmitting unit 41 generates response data including the WFD wireless settings included in the G/O WFD affiliation information. Unlike S50, in S60, the response data typically does not include Wi-Fi radio settings and priority information. In S60, the first information transmitting unit 41 further transmits the generated response data to the mobile 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, and if the request data does not include the SSID, determines NO in S40 and proceeds to S48. Proceed to.

In S42, the first determination unit 45 determines whether the MFP 10 belongs to at least one of the normal Wi-FiNW and the WFDNW (MFP=CL). Specifically, the first determination unit 45 determines at least the following: normal Wi-Fi affiliation information and WFD affiliation information including a status value indicating the client status (hereinafter referred to as "WFD affiliation information for CL"). 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 the normal Wi-FiNW and WFDNW (MFP=CL)), and the process proceeds 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 (MFP=CL)), and the process advances to S48.

In S44, if the normal Wi-Fi affiliation information is stored in the memory 34, the first determination unit 45 determines whether the MFP 10 and the mobile terminal 50 belong to the same normal Wi-Fi NW. A first determination process is executed to The first determination process is similar to S36. If the first determination unit 45 determines in the first determination process that the MFP 10 and the mobile terminal 50 belong to the same normal Wi-Fi NW, it determines YES in S44 and proceeds to S46.

In S44, the first determination unit 45 further determines whether the MFP 10 and the mobile terminal 50 belong to the same WFDNW (MFP=CL) when the WFD affiliation information for CL is stored in the memory 34. A second determination process is executed to determine whether the Specifically, the first determination unit 45 determines whether the SSID included in the CL WFD affiliation information in the memory 34 matches the SSID included in the request data. The first determination unit 45 determines that the MFP 10 and the mobile terminal 50 belong to the same WFDNW (MFP=CL) when the two SSIDs match. If the first determination unit 45 determines in the second determination process that the MFP 10 and the mobile terminal 50 belong to the same WFDNW (MFP=CL), the first determination unit 45 determines YES in S44 and proceeds to S46. .

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

In S46, the forming unit 44 shifts the MFP 10 to autonomous G/O mode. As described above, when a WFD network is to be newly formed, G/O negotiation is normally performed to determine G/O devices and CL devices. On the other hand, in the autonomous G/O mode, the MFP 10 is determined to be a G/O device without performing G/O negotiation. At the stage of S46, the MFP 10 is the G/O device, but there is no CL device. That is, by executing S46, the forming unit 44 forms a WFDNW (MFP=G/O) to which only the G/O device (ie, 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 through G/O negotiation and forms a WFD network, when the CL device disappears from the WFD network, the MFP 10 shifts from the G/O state to the device state (i.e. , WFD network disappears). On the other hand, for example, when the MFP 10 enters the G/O state in the autonomous G/O mode and forms a WFD network, the MFP 10 maintains the G/O state even if there is no CL device (i.e., maintain the WFD network).

Note that when S46 is started, there is a possibility that the MFP 10 belongs to WFDNW (MFP=CL). In this case, in S46, the forming unit 44 newly forms a WFDNW (MFP=G/O) without removing the MFP 10 from the WFDNW (MFP=CL). That is, a state is created in which the MFP 10 simultaneously belongs to two WFDNWs. This point also applies to S48, which will be described later.

In S46, the forming unit 44 further prepares WFD wireless settings (ie, authentication method information, encryption method information, SSID, BSSID, and password) to be used in the WFDNW (MFP=G/O). The techniques for preparing the WFD radio configuration are as described above. In S46, the forming unit 44 further causes the memory 34 to store G/O WFD affiliation information including a status value indicating the G/O status and the prepared WFD wireless settings. After completing S46, the process advances to S70.

In S70, the second information transmitter 42 first generates response data. Specifically, the second information transmitting unit 42 transmits information about both the MFP 10 and the mobile terminal 50 from one or more pieces of affiliation information (i.e., normal Wi-Fi affiliation information, WFD affiliation information) in the memory 34. The affiliation information (hereinafter referred to as "specific affiliation information") corresponding to the wireless network to which the user belongs (that is, the wireless network determined as YES in S44) is specified. The specific affiliation information is normal Wi-Fi affiliation information or CL WFD affiliation information. Then, the second information transmitting unit 42 transmits the wireless settings included in the specific affiliation information (that is, the normal Wi-Fi wireless settings or the WFD wireless settings of WFDNW (MFP=CL)) and the first priority order. First correspondence information in which priority order information indicating , is associated with is generated. Next, the second information transmitter 42 transmits the WFD wireless settings included in the G/O WFD affiliation information in the memory 34 (that is, the WFD wireless settings prepared in S46) and the priority order indicating the second priority. generate second correspondence information in which information and are associated with each other. The second information transmitter 42 generates response data including first correspondence information and second correspondence information. In S70, the second information transmitting unit 42 further transmits the generated response data to the mobile terminal 50 via the NFC I/F 22.

Note that, as described above, in S70, the wireless setting corresponding to the wireless network to which the mobile terminal 50 belongs has the first priority. For this reason, the mobile terminal 50 preferentially uses the wireless network in the application processing shown in FIG. 4, which will be described later. At this time, since the mobile terminal 50 already belongs to the wireless network, the mobile terminal 50 does not need to perform the connection process (S210 in FIG. 4) (YES in S208 in FIG. 4). Therefore, the processing load on the mobile terminal 50 can be reduced.

On the other hand, in S48, the forming unit 44 shifts the MFP 10 to autonomous G/O mode. S48 is similar to S46. Next, in S60 executed after S48, the third information transmitter 43 includes the WFD wireless settings included in the G/O WFD affiliation information in the memory 34 (that is, the WFD wireless settings prepared in S48). Generate response data. Unlike S70, in S60, the response data does not include normal Wi-Fi wireless settings or WFD wireless settings corresponding to WFDNW (MFP=CL), nor does it include priority information. In S60, which is executed after S48, the third information transmitting unit 43 further transmits the generated response data to the mobile terminal 50 via the NFC I/F 22.

As described above, even if the MFP 10 belongs to the normal Wi-FiNW, if the mobile terminal 50 does not belong to the normal Wi-FiNW (NO in S36 or NO in S44), the MFP 10 The normal Wi-Fi wireless settings corresponding to the Wi-Fi NW are not transmitted to the mobile terminal 50 (S60). For this reason, it is possible to prevent the security of the normal Wi-FiNW to which the MFP 10 belongs from deteriorating. Similarly, even if the MFP 10 belongs to the WFDNW (MFP=CL), if the mobile terminal 50 does not belong to the WFDNW (MFP=CL) (NO in S44), the MFP 10 ) is not transmitted to the mobile 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 deteriorating.

On the other hand, in the WFDNW to which the MFP 10 belongs (MFP=G/O), 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 mobile terminal 50 does not belong to the WFDNW (MFP=G/O), the MFP 10 configures the WFD wireless settings corresponding to the WFDNW (MFP=G/O). The information is transmitted to the mobile terminal 50 (S50, S60, S70). As a result, as will be described in detail later, the MFP 10 and the mobile terminal 50 can appropriately communicate target data 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 advances to S14 in FIG. No matter which of S50, S60, and S70 in FIG. 3 is executed, the WFD wireless settings corresponding to WFDNW (MFP=G/O) are transmitted to the mobile terminal 50. As will be described in detail later, if the mobile terminal 50 does not belong to the WFDNW (MFP=G/O), the mobile terminal 50 uses the WFD wireless settings to connect to the WFDNW (MFP=G/O) to participate in the WFDNW (MFP=G/O). 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 reception of a connection signal from the mobile terminal 50 via the wireless LAN I/F 20. When receiving the connection signal from the mobile terminal 50, the control unit 30 determines YES in S14 and proceeds to S16. Note that in the case of NO in S14, the process advances to S18.

In S16, the control unit 30 transmits a connection response signal (for example, an Authentication Response signal or an AssociationResponse signal), which is a response signal to the above connection signal, to the mobile terminal 50 via the wireless LAN I/F 20. As a result, the mobile terminal 50 receives the WFDNW (MF
P=G/O). That is, the MFP 10 and the mobile terminal 50 belong to the same WFDNW (MFP=G/O). After completing S16, the process advances to S18.

Further, as will be described in detail later, the mobile 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 mobile terminal 50 belong (see S212 in FIG. 4). . In S18, the communication execution unit 47 monitors reception of a confirmation signal from the mobile terminal 50 via the wireless LAN I/F 20. When receiving the confirmation signal from the mobile terminal 50, the communication execution unit 47 determines YES in S18 and proceeds to S20. Note that in the case of NO in S18, the process returns to S14.

In S20, the control unit 30 transmits a confirmation response signal (for example, a PING Response signal), which is a response signal to the above confirmation signal, to the mobile terminal 50 via the wireless LAN I/F 20.
After completing S20, the process advances to S22.

Note that even if a confirmation signal is transmitted from the mobile terminal 50 to the MFP 10 using a wireless network to which both the MFP 10 and the mobile terminal 50 belong (hereinafter referred to as "NW to which both belong"), the MFP 10 transmits the confirmation signal. You may not be able to receive it. For example, in a situation where both affiliated NWs are normal Wi-Fi NWs, if the PS setting of the AP forming the normal Wi-Fi NW is ON, the relevant AP receives a confirmation signal from the mobile terminal 50. However, the confirmation signal is not sent to the MFP 10. Furthermore, for example, in a situation where the NWs to which both belong are a WFDNW in which both the MFP 10 and the mobile terminal 50 operate as CL devices (that is, WFDNW (MFP = CL, mobile terminal = CL)), the WFDNW (MFP = CL, If the PS setting of the G/O device forming the mobile terminal (CL) is ON, even if the G/O device receives the confirmation signal from the mobile terminal 50, it will not send the confirmation signal to the MFP 10. do not. In this way, even if both affiliated NWs are used, there is a possibility that communication of the confirmation signal and confirmation response signal cannot be executed. If such both belonging NWs are used, communication of target data (ie, print data or scan data) is also impossible.

On the other hand, if the NWs to which both belong are WFDNW (MFP=G/O), the MFP 10 and the mobile terminal 50 do not communicate via a relay device (i.e., AP or G/O device). , directly perform communication. Therefore, an event in which data communication is not successful due to the PS setting of the relay device being ON does not occur. In addition, even in a situation where both affiliated NWs are normal Wi-FiNWs or WFDNWs (MFP = CL, mobile terminal = CL), if the PS setting of the relay device is OFF, communication of confirmation signals and confirmation response signals is executed. It is possible. When such both belonging NWs are used, communication of target data (ie, print data or scan data) can be executed.

In view of these circumstances, in S22, the communication execution unit 47 uses the wireless network (hereinafter referred to as a "specific wireless network") on which the confirmation signal and the confirmation response signal have been successfully communicated, to perform the wireless LANI/ Communication of target data is executed via F20. Thereby, the MFP 10 and the mobile terminal 50 can appropriately communicate the target data. For example, in S22 executed after S50 in FIG. 3, the above-mentioned specific wireless network is usually Wi-FiNW or WFDNW (MFP=G/O). Further, for example, in S22 executed after S60 in FIG. 3, WFDNW (MFP=G/O) is the above-mentioned specific wireless network. Further, for example, in S22 executed after S70 in FIG. 3, the above-mentioned specific wireless network is usually Wi-FiNW, WFDNW (MFP=CL), or WFDNW (MFP=G/O).

For example, if the request data received in S10 includes a print instruction, in S22, the communication execution unit 47 uses the above-mentioned specific wireless network to send a message from the mobile terminal 50 via the wireless LAN I/F 20. Receive print data. Next, the control unit 30 supplies print data (ie, 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. Further, 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 the scan data (that is, the target data) to the mobile terminal 50 via the wireless LAN I/F 20 using the above-mentioned specific wireless network. When S22 ends, the process returns to S10.

Print data or scan data usually has a larger data size than each data (eg, request data, response data) communicated by NFC communication. As described above, the communication speed of NFC communication is slower than that of WFD communication or normal Wi-Fi communication. Therefore, if a configuration is adopted in which wireless communication of target data is performed between the MFP 10 and the mobile terminal 50 using NFC communication, it will take a long time to wirelessly communicate the target data. In view of these circumstances, in this embodiment, the MFP 10 transmits response data for performing wireless communication of target data to the mobile terminal 50 by WFD communication or normal Wi-Fi communication. Thereby, the MFP 10 and the mobile terminal 50 can perform WFD communication or normal Wi-Fi communication of the target data, and as a result, can quickly perform wireless communication of the target data.

(Application processing of mobile terminal 50; Figure 4)
Next, with reference to FIG. 4, the details of the process executed by the control unit 70 of the mobile terminal 50 according to the application 76 will be described. When the user of the mobile terminal 50 desires to have the MFP 10 perform a print function or a scan function, the user operates the operation unit 52 to start the application 76 . Thereby, the control unit 70 starts the flowchart of FIG. 4 according to the application 76.

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

In S202, the specific data transmitter 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 transmitter 80 specifies the SSID included in the affiliation information. Then, the specific data transmitter 80 generates request data including the specified SSID. In S202, the specific data transmitter 80 further monitors whether an NFC communication session is established between the MFP 10 and the mobile terminal 50. The specific data transmitter 80 transmits the generated request data to the MFP 10 via the NFC I/F 62 when an NFC communication session is established. Thereby, the MFP 10 receives the request data (see S10 in FIG. 2).

As described above, in S50, S60, or S70 of FIG. 3, the MFP 10 transmits response data to the mobile terminal 50. As a result, in S204, 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 with the highest priority among the one or more wireless settings included in the response data received in S204. For example, if the response data includes WFD wireless settings corresponding to WFDNW (MFP=G/O) and does not include other wireless settings (see S60 in FIG. 3), the communication execution unit 82 Identify settings. For example, if the response data includes two wireless settings (see S50 and S70 in FIG. 3), in the first S206, the communication execution unit 82 uses priority information indicating the first priority. Identify the associated wireless settings. Note that 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 settings corresponding to the wireless network to which both the MFP 10 and the mobile terminal 50 belong are associated with the priority information indicating the first priority.

Next, in S208, the communication execution unit 82 determines whether the mobile terminal 50 belongs to a wireless network (hereinafter referred to as "target wireless network") corresponding to the wireless settings specified in S206. . Specifically, if the wireless settings specified in S206 and the wireless settings included in the affiliation information in the memory 74 match, the communication execution unit 82 determines YES in S208 and executes S210. Skip and proceed to S212. On the other hand, if the wireless settings specified in S206 and the wireless settings included in the affiliation information in the memory 74 do not match, 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 settings specified in S206. Specifically, the communication execution unit 82 performs a connection for connecting to a target relay device (for example, AP 4a, 4b, or MFP 10 operating as a G/O device) forming a 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. do. Communication of the connection signal and connection response signal is executed multiple times. For example, an Authentication Request signal is transmitted as a connection signal, and an AuthenticationResponse 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. Note that when the target relay device is the MFP 10 that operates as a G/O device, the MFP 10 receives a connection signal from the mobile terminal 50 in S14 of FIG. 2, and sends a connection response signal to the mobile terminal in S16. Send to 50.

In the process of communicating the connection signal and the connection response signal, the communication execution unit 82 transmits the authentication method information, encryption method information, password, SSID, and BSSID included in the wireless settings specified in S206. Thereby, the target relay device performs authentication of the mobile 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 at the stage when S210 is executed, there is a possibility that the mobile terminal 50 belongs to an existing wireless network.
In this case, the mobile terminal 50 leaves the existing wireless network and newly joins the target wireless network.

Next, in S212, the communication execution unit 82 uses the wireless network to which the mobile terminal 50 belongs to transmit a confirmation signal (for example, a PING signal) to the MFP 10 via the wireless LAN I/F 60. For example, in the case of YES in S208, the wireless network used in S212 is the existing wireless network to which the mobile terminal 50 belongs at the stage when the application processing in FIG. 4 is started. Further, for example, in the case of NO in S208, the wireless network used in S212 is the wireless network to which the mobile terminal 50 newly joined in the connection process in S210.

In S214, the communication execution unit 82 monitors reception of an acknowledgment signal (for example, a PINGResponse signal) from the MFP 10 via the wireless LAN I/F 60. As described above, if the PS setting of the relay device forming the wireless network used for communication of the confirmation signal 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 identified 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 S206 for the second time.

In the second S206, the communication execution unit 82 identifies the wireless setting having the highest priority among the wireless settings not yet specified in the first S206. In this embodiment, since "2" is the maximum number of wireless settings included in the response data, in the second S206, the communication execution unit 82 associates it with priority information indicating the second priority. Identify the wireless settings that are configured. Note that 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 priority information indicating the second priority. Therefore, when S208 to S214 are executed thereafter, the communication execution unit 82 normally receives an acknowledgment signal from the MFP 10 in S214. In WFDNW (MFP=G/O), since communication is performed directly without going through a relay device, there is an event where 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 uses the wireless network (hereinafter referred to as a "specific wireless network") on which the confirmation signal and the response signal were successfully communicated to communicate the target data via the wireless LAN I/F 60. Execute. For example, when the print function is selected in S200, the communication execution unit 82 transmits print data to the MFP 10 via the wireless LAN I/F 60 using the above-mentioned specific wireless network in S218. Further, when the scan function is selected in S200, the communication execution unit 82 receives scan data from the MFP 10 via the wireless LAN I/F 60 using the above-mentioned specific wireless network in S218. In this case, the control unit 70 causes the memory 74 to store the scan data. When S218 ends, the application processing in FIG. 4 ends.

Note that in S220, the control unit 70 causes the display unit 54 to display information indicating that communication of target data with the MFP 10 is not possible. When S220 ends, the application processing in FIG. 4 ends. Note that 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 process after the application process in FIG. Execute. That is, the control unit 70 causes the mobile terminal 50 to leave the wireless network it joined in S210, and causes the mobile terminal 50 to rejoin the existing wireless network.

(Specific case)
Next, a specific case realized by the MFP 10 and the mobile terminal 50 of this embodiment will be described with reference to FIGS. 5 to 8. 5 to 8, a thin arrow between the MFP 10 and the mobile terminal 50 indicates NFC communication, and a thick arrow between the MFP 10 and the mobile 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. Furthermore, the MFP 10 and the mobile 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 SSID "04" is used.

When the user selects the print function (YES in S200 in FIG. 4), the mobile terminal 50 uses NFC communication to transmit request data including a print instruction and SSID "04" to the MFP 10 (S202). .

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

When the mobile terminal 50 receives the response data from the MFP 10 (S204 in FIG. 4), it specifies the normal Wi-Fi wireless setting WS4 associated with the priority information indicating the first priority (S206). Next, the mobile terminal 50 determines YES in S208, and sends a confirmation signal to the MFP 10 using the normal Wi-FiNW (S212). However, since the PS setting of AP4a is ON, AP4a does not transmit the confirmation signal to MFP 10 even if it receives the confirmation signal from mobile terminal 50. As a result, the mobile terminal 50 does not receive the confirmation response signal and determines NO in S214.

Next, the mobile terminal 50 identifies the WFD wireless setting WS1 associated with the priority information indicating the second priority (S206). In this case, the mobile terminal 50 determines NO in S208, uses the WFD wireless setting WS1 to connect to the MFP 10, which is the G/O device, and newly participates in the WFDNW (MFP=G/O) (S210 ). Next, the mobile 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 a relay device. Therefore, the MFP 10 receives the confirmation signal from the mobile 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 an acknowledgment signal to the mobile terminal 50 (S20).

When the mobile terminal 50 receives the confirmation signal from the MFP 10 (YES in S214 in FIG. 4), it transmits the print data to the MFP 10 using WFDNW (MFP=G/O) (S218). As a result, the MFP 10 receives print data 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 PC 6 belong is the same as the WFDNW (MFP=G/O) in case A. Furthermore, the MFP 10 belongs to the normal Wi-Fi NW formed by the AP 4a. In the normal Wi-Fi NW, a normal Wi-Fi wireless setting WS4 including SSID "04" is used. Further, 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 SSID "05" is used.

When the user selects the print function (YES in S200 in FIG. 4), the mobile terminal 50 uses NFC communication to transmit request data including a print instruction and SSID "05" to the MFP 10 (FIG. 4). S202).

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

When the mobile terminal 50 receives the response data from the MFP 10 (S204 in FIG. 4), the mobile 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, which is the G/O device, and newly participates in the WFDNW (MFP=G/O) (S210). . The subsequent operations of the MFP 10 and the mobile terminal 50 are the same as in case A.

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

When the user selects the print function (YES in S200 in FIG. 4), the mobile terminal 50 uses NFC communication to transmit request data including a print instruction and SSID "02" to the MFP 10 (FIG. 4). S202).

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

When the mobile terminal 50 receives the response data from the MFP 10 (S204 in FIG. 4), it specifies the normal Wi-Fi wireless setting WS2 associated with the priority information indicating the first priority (S206). Next, the mobile terminal 50 determines YES in S208, and sends a confirmation signal to the MFP 10 using the normal Wi-FiNW (S212). However, since the PS setting of AP4a is ON, AP4a does not transmit the confirmation signal to MFP 10 even if it receives the confirmation signal from mobile terminal 50. As a result, the mobile terminal 50 does not receive the confirmation response signal and determines NO in S214.

Next, the mobile terminal 50 identifies the WFD wireless setting WS3 associated with the priority information indicating the second priority (S206). In this case, the mobile terminal 50 determines NO in S208, uses the WFD wireless setting WS3 to connect to the MFP 10, which is the G/O device, and newly participates in the WFDNW (MFP=G/O) (S210 ). The subsequent operations of the MFP 10 and the mobile terminal 50 are the same as in 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 SSID "02" is used. Further, 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 SSID "06" is used.

When the user selects the print function (YES in S200 in FIG. 4), the mobile terminal 50 uses NFC communication to transmit request data including a print instruction and SSID "06" to the MFP 10 (FIG. 4). S202).

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

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

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

Note that if the MFP 10 belongs not only to the WFDNW (MFP=G/O) but also to the normal Wi-FiNW, it is classified into Case A and Case B. That is, in case A of FIG. 5, since the MFP 10 and the mobile terminal 50 belong to the same normal Wi-FiNW, the MFP 10 has the normal Wi-Fi wireless settings WS4 corresponding to the normal Wi-FiNW and the WFDNW (
WFD wireless settings WS1 corresponding to MFP=G/O) are transmitted to the mobile terminal 50. As a result, the MFP 10 and the mobile terminal 50 can normally communicate target data using Wi-FiNW 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 communicate the target data using the normal Wi-FiNW. However, the MFP 10 and the mobile terminal 50 can appropriately communicate target data using WFDNW (MFP=G/O).

Furthermore, in case B of FIG. 6, since the MFP 10 and the mobile terminal 50 do not belong to the same normal Wi-Fi NW, the MFP 10 sends the normal Wi-Fi wireless settings WS4 corresponding to the normal Wi-Fi NW to the mobile terminal 50. Instead, the WFD wireless setting WS1 corresponding to WFDNW (MFP=G/O) is transmitted to the mobile terminal 50. As a result, it is possible to prevent the security of the normal Wi-FiNW to which the MFP 10 belongs from deteriorating. Moreover, the MFP 10 and the mobile terminal 50 can appropriately communicate target data using WFDNW (MFP=G/O).

Furthermore, as shown in case C in FIG. 7, the MFP 10 does not belong to WFDNW (MFP=G/O), but if it normally belongs to Wi-FiNW, it is connected to WFDNW (MFP=G/O). form a new one. Since the MFP 10 and the mobile terminal 50 belong to the same normal Wi-FiNW, the MFP 10 has the normal Wi-Fi wireless setting WS2 corresponding to the normal Wi-FiNW and the WFD wireless setting corresponding to the WFDNW (MFP=G/O). The settings WS3 are transmitted to the mobile terminal 50. As a result, the MFP 10 and the mobile terminal 50 can normally communicate target data using Wi-FiNW 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 communicate the target data using the normal Wi-FiNW. However, the MFP 10 and the mobile terminal 50 can appropriately communicate target data using WFDNW (MFP=G/O).

Furthermore, as shown in case D of FIG. 8, since the MFP 10 and the mobile terminal 50 do not belong to the same normal Wi-FiNW, the MFP 10 carries the normal Wi-Fi wireless settings WS2 corresponding to the normal Wi-FiNW. The WFD wireless setting WS3 corresponding to WFDNW (MFP=G/O) is transmitted to the mobile terminal 50 without transmitting it to the terminal 50. For this reason, it is possible to prevent the security of the normal Wi-FiNW to which the MFP 10 belongs from deteriorating. Moreover, the MFP 10 and the mobile terminal 50 can appropriately communicate target data 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 of 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 mobile terminal 50 are examples of a "first type interface of a mobile terminal" and a "second type interface of a mobile 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 settings included in the response data communicated in S12 of FIG. 2 and S204 of FIG. 4 are an example of "specific information." The priority information transmitted in S50 and S70 in FIG. 3 is an example of "instruction information." Furthermore, the G/O state is an example of a "master station," and the client state or the state of normal participation in a Wi-FiNW is an example of a "slave station."

In case A of FIG. 5, WFDNW (MFP=G/O), WFD wireless setting WS1, normal Wi-FiNW, and normal Wi-Fi wireless setting WS4 are "first wireless network" and "first information", respectively. ”, “fourth wireless network”, and “fourth information”. In cases C and D of FIGS. 7 and 8, the normal Wi-FiNW, the normal Wi-Fi wireless setting WS2, the WFDNW (MFP=G/O) formed by the MFP 10, and the WFD wireless setting WS3 are This is an example of "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 a "specific wireless network." The case of YES in S30 and the case of YES in S42 in FIG. 3 are examples of the "first case" and the "second case", respectively. Further, S50 in FIG. 3 or S60 executed after S36 is an example of a process executed by the "first information transmitting unit." S70 is an example of a process executed by the "second information transmitting section". S60, which is executed after S48, is an example of a process executed by the "third information transmitting section."

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

(Second example)
In this embodiment, the content of the response transmission process (FIG. 3) 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 mobile terminal 50 do not belong to the same normal Wi-Fi NW (NO in S36 or NO in S44 in FIG. 3), the MFP 10 changes the normal Wi-Fi wireless settings. It is not transmitted to the mobile terminal 50 (S60). Further, if the MFP 10 and the mobile terminal 50 do not belong to the same WFDNW (MFP=CL) (NO in S44), the MFP 10 does not transmit the WFD wireless settings corresponding to the WFDNW (MFP=CL) to the mobile terminal 50 ( S60). In contrast, in this embodiment, the MFP 10 is compatible with all wireless networks that can communicate target data with the mobile terminal 50, regardless of whether the MFP 10 and the mobile terminal 50 belong to the same wireless network. All wireless settings to be performed are transmitted to the mobile terminal 50.

S130 and S132 in FIG. 9 are similar to S30 and S34 in FIG. 3. If YES in S132, the MFP 10 belongs to the normal Wi-FiNW and the WFDNW (MFP=G/O). In this case, in S150, the first information transmitting unit 41 executes the same process as S50 in FIG. 3. If NO in S132, the MFP 10 belongs to WFDNW (MFP=G/O). In this case, in S160, the first information transmitting unit 41 executes the same process as S60 in FIG. 3.

S134 is similar to S132. If YES in S134, the control unit 30 determines in S136 whether or not the MFP 10 belongs to WFDNW (MFP=CL). The determination method in S136 is the same as the determination method used in S42 in FIG. The forming unit 44 executes S138 if YES in S136, and executes S140 if NO in S136. S138 and S140 are similar to S46 (or S48) in FIG. 3.

When S138 is executed, the MFP 10 belongs to the normal Wi-FiNW, WFDNW (MFP=CL), and WFDNW (MFP=G/O). In S170, which is executed after S138, the second information transmitter 42 associates the normal Wi-Fi wireless settings corresponding to the normal Wi-Fi NW with priority information indicating the first priority. first correspondence information is generated. The second information transmitter 42 further generates second correspondence information in which the WFD wireless settings corresponding to WFDNW (MFP=CL) and priority information indicating the second priority are associated. do. The second information transmitter 42 further includes third correspondence information in which the WFD wireless settings corresponding to WFDNW (MFP=G/O) and priority information indicating the third priority are associated. generate. Then, the second information transmitter 42 generates response data including the first correspondence information, the second correspondence information, and the third correspondence information. In S170, the second information transmitting unit 42 further transmits the generated response data to the mobile terminal 50 via the NFC I/F 22.

At the stage of S170, it is impossible for the mobile terminal 50 to 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, at the stage of S170, there is a possibility that the mobile terminal 50 belongs to a normal Wi-FiNW or a WFDNW (MFP=CL). Therefore, in this embodiment, response data is generated in S170 so that the priority of the normal Wi-FiNW and WFDNW (MFP=CL) is higher than the priority of WFDNW (MFP=G/O). . Thereby, it is possible to increase the possibility that the mobile terminal 50 does not need to perform the connection process of S210 in FIG. 4, and as a result, the processing load on the mobile terminal 50 can be reduced. In addition, in the modified example, in S170, the second information transmitting unit 42 determines that the priority of the WFDNW (MFP=CL) is the first priority, and the priority of the normal Wi-FiNW is the second priority. The response data may be generated as follows.

When S140 is executed, the MFP 10 belongs to a normal Wi-FiNW and a WFDNW (MFP=G/O). S180, which is executed after S140, is similar to S70 in FIG. 3, in which Wi-FiNW is normally adopted as the first priority.

S142 is similar to S136. The forming unit 44 executes S144 if YES in S142, and executes S146 if NO in S142. S144 and S146 are similar to S46 (or S48) in FIG. 3.

When S144 is executed, the MFP 10 belongs to WFDNW (MFP=CL) and WFDNW (MFP=G/O). S190 executed after S144 is similar to S70 in 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 after S146 is similar to S60 in FIG. 3.

(Effects of the second embodiment)
In this embodiment, when the MFP 10 belongs to the WFDNW (MFP=G/O) (YES in S130), the MFP 10 transmits the WFD wireless settings corresponding to the WFDNW (MFP=G/O) to the mobile terminal 50 ( S150, S160). For this reason, the MFP 10 and the mobile terminal 50 can appropriately communicate target data using WFDNW (MFP=G/O). Further, if the MFP 10 does not belong to WFDNW (MFP=G/O) but belongs to another wireless network (usually Wi-FiNW or WFDNW (MFP=CL)) (YES in S134, or If YES in S142), create a new WFDNW (MFP=G/O) and configure the wireless settings corresponding to the other wireless networks mentioned above (normal Wi-Fi wireless settings or WFDNW (MFP=CL)) WFD wireless settings) and WFD wireless settings corresponding to WFDNW (MFP=G/O) are transmitted to the mobile terminal 50 (S170,
S180, S190). For this purpose, the MFP 10 and the mobile terminal 50 can appropriately communicate target data using the other wireless networks described above or WFDNW (MFP=G/O). Even if the MFP 10 and the mobile terminal 50 are unable to communicate the target data using the other wireless networks mentioned above, the MFP 10 and the mobile terminal 50 will still be able to use the WFDNW (MFP=G /O), it is possible to appropriately communicate target data.

(correspondence)
The case of YES in S130 is an example of the "first case". That is, WFDNW (MFP=G/O) is an example of a "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, the normal Wi-FiNW or WFDNW (MFP=CL) is an example of the "second wireless network." Furthermore, the WFDNW (MFP=G/O) formed in S138, S140, or S146 is an example of a "third wireless network." Further, S150 or S160 is an example of a process executed by the "first information transmitting unit". S170, S180, or S190 is an example of the process executed by the "second information transmitting unit".

Although specific examples of the present invention have been described in detail above, these are merely illustrative and do not limit the scope of the claims. The techniques described in the claims include various modifications and changes to the specific examples illustrated above. Modifications of the above embodiment are listed below.

(Modification 1) In case A of FIG. , password) is transmitted to the mobile terminal 50 (S50 in FIG. 3). Alternatively, the first information transmitting unit 41 may transmit response data including some information (for example, SSID and password) of the WFD wireless settings WS1 to the mobile terminal 50. In this case, when the mobile terminal 50 is to newly participate in the WFDNW (MFP=G/O), the communication execution unit 82 of the mobile terminal 50 performs an SSID search (that is, sends a PReq signal), The PRes signal may be received from the MFP 10 that operates as a G/O device. The PRes signal includes information used by the WFDNW (MFP=G/O) (ie, authentication method information, encryption method information, SSID, and BSSID). As a result, the communication execution unit 82 can acquire each piece of information (i.e., authentication method information, encryption method information, and BSSID) other than a part of the information included in the response data, and can newly participate in the WFDNW. can do. That is, the "first information" may be all the information in the WFD wireless settings WS1 as in the above embodiment, or it may be one of the WFD wireless settings WS1 as in this modification. It may also be information about the department. Similarly, the "sixth information" may be all of the information in the WFD wireless settings WS1, or may be a part of the information in the WFD wireless settings WS1.

(Modification 2) Similar to 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 the "second information" may be all the information in the normal - It may be part of the information in the Fi wireless setting WS2. Furthermore, 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 settings are already stored in the memory 74 of the mobile terminal 50. Therefore, instead of transmitting the normal Wi-Fi wireless settings WS2, the second information transmitting unit 42 transmits continuous use information to the mobile terminal 50 indicating that the wireless network to which the mobile terminal 50 belongs will be continued. You may also send it to In this modification, the continued use information is an example of "second information". Similarly, the "fifth information" may be all of the information in the normal Wi-Fi wireless settings WS2, or may be a part of the information in the normal Wi-Fi wireless settings WS2. However, it may also be continuous use information.

(Modification 3) Similar to 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), It may be part of the information in the WFD wireless settings WS3. Similarly, the "sixth information" may be all of the information in the WFD wireless settings WS3, or may be a part of the information in the WFD wireless settings WS3.

(Modification 4) Similar to Modification 1, the "fourth information" may be all information in the normal Wi-Fi wireless setting WS4 (see case A in FIG. 5), or the "fourth information" may be all information in the normal Wi-Fi wireless setting WS4 (see case A in FIG. - It may be part of the information in the Fi wireless setting WS4. Further, similarly to the second modification, the first information transmitting unit 41 may transmit continuous use information to the mobile terminal 50 instead of transmitting the normal Wi-Fi wireless settings WS4. In this modification, the continued use information is an example of "fourth information". Similarly, the "fifth information" may be all of the information in the normal Wi-Fi wireless settings WS4, or may be a part of the information in the normal Wi-Fi wireless settings WS4. However, it may also be continuous use information.

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

(Variation 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 mobile terminal 50 may sequentially use each of the plurality of wireless settings included in the response data, for example, randomly. Generally speaking, the second information transmitter 42 only has to transmit the second information and the third information to the mobile terminal, and the first information transmitter 41 transmits the first information and the fourth information. All you have to do is send the information to your mobile device.

(Modification 7) If YES in S30 of FIG. 3, the MFP 10 may execute S60 without executing S32 to S36 and S50. That is, the first information transmitting section 41 only has to transmit the first information in the first case. Further, the MFP 10 may skip S40 and execute S42 when the answer is NO in S30 in FIG. 3, and may skip S44 and execute S46 and S70 when the answer is YES in S42. That is, the second information transmitter 42 may transmit the second information and the third information in the second case. Generally speaking, in one technique disclosed by this specification, a device-side control section includes a specific data receiving section, a first information transmitting section, a forming section, a second information transmitting section, and a device-side control section. It is only necessary to include at least a communication execution unit.

(Modification 8) If YES in S30 in FIG. 3, the MFP 10 executes S32 to S36, S50, and S60, but if NO in S30, the MFP 10 does not communicate the target data with the mobile terminal 50. Good too. Furthermore, the MFP 10 may execute S40 to S48, S60, and S70 without executing S30 to S36 and S50 in FIG. That is, generally speaking, in one technique disclosed in this specification, the device-side control section includes at least a specific data reception section, a determination section, an information transmission section, and a device-side communication execution section. Bye.

(Modification 9) The communication execution unit 82 of the mobile terminal 50 transmits the plurality of messages included in the response data without executing the communication of the confirmation signal and the confirmation response signal (without executing S212 and S214 in FIG. 4). Communication of the target data may be attempted using a wireless network corresponding to any one of the wireless settings. In this case, if communication of the target data fails, the communication execution unit 82 may attempt to communicate the target data using a wireless network corresponding to another wireless setting among the plurality of wireless settings. good. This modification is also an example of "sequentially using each of a plurality of wireless networks."

(Modification 10) The "master station" is not limited to G/O devices of WFDNW, but is in a state where it manages each device belonging to the wireless network (for example, a state where wireless communication between devices belonging to the wireless network can be relayed) ), it may be in any state. Furthermore, a "slave station" is not limited to the client state of a WFDNW or the state of normally belonging to a Wi-FiNW, but can 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 also be an interface for executing infrared communication, or an interface for executing Bluetooth (registered trademark). , or an interface for executing Transfer Jet. Generally speaking, it is sufficient that the communication speed of wireless communication via the second type interface is faster than the communication rate of wireless communication via the first type interface.

(Modification 12) The "first type interface" and the "second type interface" are two interfaces (for example, two IC chips) configured separately, as in the above embodiment. Alternatively, it may be one integrated interface (for example, one IC chip).

(Modification 13) A "communication device" is not limited to the MFP 10, but may include other communication devices (for example, a printer, a scanner, a FAX device, a copy machine, a telephone, a desktop PC, a notebook PC, a tablet PC, a server, a mobile phone, a PDA) terminal, etc.). Further, "target data" is not limited to print data and scan data, but may be other data (for example, audio data, FAX data, etc.).

(Modification 14) In the above embodiment, the CPU 32 of the MFP 10 executes the program (ie, software) in the memory 34, thereby realizing the functions of each of the units 40 to 47. Alternatively, 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.

Further, the technical elements described in this specification or the drawings exhibit technical usefulness singly or in various combinations, and are not limited to the combinations described in the claims as filed. Furthermore, the techniques illustrated in this specification or the drawings simultaneously achieve multiple objectives, and achieving one of the objectives has technical utility in itself.
The following items are elements described in the claims as filed.
(Item 1)
A communication device for communicating between a mobile terminal and target data,
a first type interface for performing wireless communication with the mobile terminal;
A second type of interface for performing wireless communication with the mobile terminal, wherein the communication speed of the wireless communication via the second type interface is the communication speed of the wireless communication via the first type interface. the second type of interface, which is faster than
A device side control unit;
The device-side control unit includes:
a specific data receiving unit that receives specific data from the mobile terminal via the first type interface;
for the mobile terminal to perform wireless communication using the first wireless network in a first case where the communication device belongs to a first wireless network when the specific data is received; a first information transmitting unit that transmits first information to the mobile terminal via the first type of interface, the first wireless network transmitting first information to the mobile terminal via the second type of interface; the first information transmitter, which is a wireless network for performing communication;
When the specific data is received, in a second case where the communication device does not belong to the first wireless network but belongs to a second wireless network, a third wireless network is newly established. a forming unit forming the forming unit, 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, second information for the mobile terminal to perform wireless communication using the second wireless network; and second information for the mobile terminal to perform wireless communication using the third wireless network. a second information transmitting unit that transmits third information for executing the above to the mobile terminal via the first type interface;
In the first case, the mobile terminal and the target data are communicated using the first wireless network, and in the second case, the second wireless network or the third wireless a device-side communication execution unit that executes communication between the mobile terminal and the target data using a network;
A communication device comprising:
(Item 2)
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 item 1, wherein the second wireless network is a wireless network in which the communication device operates as a slave station.
(Item 3)
The specific data includes identification information for identifying a wireless network to which the mobile terminal belongs,
The device-side control unit further includes:
comprising a first determination unit that determines whether or not the mobile terminal belongs to the second wireless network using the identification information in the second case;
In the second case, the forming unit newly forms the third wireless network regardless of whether it is determined that the mobile terminal belongs to the second wireless network,
In the second case, the second information transmitting unit transmits the second information and the third information when it is determined that the mobile 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, if it is determined that the mobile terminal does not belong to the second wireless network, the third information is sent to the first type without transmitting the second information. a third information transmitting unit that transmits to the mobile terminal via the interface,
The device-side communication execution unit includes:
In the second case, when it is determined that the mobile terminal belongs to the second wireless network, the mobile terminal is connected to the mobile terminal using the second wireless network or the third wireless network. Execute communication of the target data,
In the second case, when it is determined that the mobile terminal does not belong to the second wireless network, communication between the mobile terminal and the target data is performed using the third wireless network. The communication device according to item 1 or 2.
(Item 4)
The second information transmitting unit is further configured to preferentially use the second wireless network over the third wireless network when the second information and the third information are to be transmitted. The communication device according to item 3, wherein the communication device transmits instruction information for instructing the mobile terminal to do something to the mobile terminal via the first type interface.
(Item 5)
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, if 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 connect to the fourth wireless network. a second determination unit that determines whether the fourth wireless network belongs to a wireless network, the fourth wireless network being a wireless network for performing wireless communication via the second type of interface; the second determination unit;
The first information transmitter includes:
In the first case, when it is determined that the mobile terminal belongs to the fourth wireless network, the mobile terminal uses the first information and the mobile terminal wirelessly using the fourth wireless network. and fourth information for executing communication to the mobile terminal via the first type interface,
In the first case, if it is determined that the mobile terminal does not belong to the fourth wireless network, the first information is sent to the first type without transmitting the fourth information. to the mobile terminal via the interface of
The device-side communication execution unit includes:
In the first case, if it is determined that the mobile terminal belongs to the fourth wireless network, the first wireless network or the fourth wireless network is used to communicate with the mobile terminal. Execute communication of the target data,
In the first case, when it is determined that the mobile terminal does not belong to the fourth wireless network, communication between the mobile terminal and the target data is performed using the first wireless network. The communication device according to any one of items 1 to 4.
(Item 6)
The communication device according to item 5, wherein the fourth wireless network is a wireless network in which the communication device operates as a slave station.
(Item 7)
The first information transmitting unit is further configured to preferentially use the fourth wireless network over the first wireless network when the first information and the fourth information are to be transmitted. The communication device according to item 5 or 6, wherein the communication device transmits instruction information for instructing the mobile terminal to do something to the mobile terminal via the first type interface.
(Item 8)
The device-side communication execution unit further includes a specific wireless network among a plurality of wireless networks including the first, second, and third wireless networks, and is configured to communicate with 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, transmitting an acknowledgment signal in response to the confirmation signal using the specific wireless network;
Items 1 to 7, wherein the device-side communication execution unit executes communication of the target data with the mobile 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 items.
(Item 9)
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,
9. The communication device according to any one of items 1 to 8, wherein the third information includes wireless setting information for performing wireless communication using the third wireless network.
(Item 10)
A communication device for communicating between a mobile terminal and target data,
a first type interface for performing wireless communication with the mobile terminal;
A second type of interface for performing wireless communication with the mobile terminal, wherein the communication speed of the wireless communication via the second type interface is the communication speed of the wireless communication via the first type interface. the second type of interface, which is faster than
A device side control unit;
The device-side control unit includes:
A specific data receiving unit that receives specific data from the mobile terminal via the first type interface, the specific data including identification information for identifying a wireless network to which the mobile terminal belongs. the specific data receiving section,
If the communication device belongs to a fifth wireless network when the specific data is received, the identification information is used to determine whether the mobile terminal belongs to the fifth wireless network. the fifth wireless network is a wireless network through which the communication device operates as a slave station and executes wireless communication via the second type interface; The judgment 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; , transmitting sixth information for the mobile terminal to perform wireless communication using a sixth wireless network to the mobile terminal via the first type interface,
In a 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 that transmits to the mobile terminal,
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, the information transmitting unit;
In the third case, communication of the mobile terminal and the target data is performed using the fifth wireless network or the sixth wireless network, and in the fourth case, the sixth wireless network a device-side communication execution unit that executes communication between the mobile terminal and the target data using a network;
A communication device comprising:
(Item 11)
A mobile terminal for performing communication between a communication device and target data,
a first type interface for performing wireless communication with the communication device;
A second type of interface for performing wireless communication with the communication device, wherein the communication speed of wireless communication via the second type interface is the communication speed of wireless communication via the first type interface. the second type of interface, which is faster than
A terminal side control unit;
The terminal side control unit includes:
a specific data transmitter that transmits specific data to the communication device via the first type interface;
an information receiving unit that receives 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 mobile terminal to perform wireless communication using one wireless network, and the specific information includes one piece of information for the mobile terminal to perform wireless communication using one wireless network, and the mobile terminal performs wireless communication using another wireless network different from the one wireless network. If other information for executing communication is not included, executing communication between the communication device and the target data using the one wireless network,
When the specific information includes a plurality of pieces of information including the one piece of information and the other information, each of the plurality of wireless networks including the one wireless network and the other wireless network a terminal-side communication execution unit that sequentially uses the communication device to communicate the target data,
each of the plurality of wireless networks is a wireless network for executing wireless communication via the second type interface;
A mobile terminal equipped with
(Item 12)
The terminal-side communication execution unit transmits a confirmation signal to the communication device by sequentially using each of the plurality of wireless networks when the specific information includes the plurality of pieces of information,
The terminal-side communication execution unit is configured to use a specific wireless network among the plurality of wireless networks when receiving an acknowledgment signal for the acknowledgment signal from the communication device. The mobile terminal according to item 11, wherein the mobile terminal uses the mobile terminal to communicate the target data with the mobile terminal.
(Item 13)
A computer program for a communication device for communicating target data with a mobile terminal,
The communication device includes:
a first type interface for performing wireless communication with the mobile terminal;
A second type of interface for performing wireless communication with the mobile terminal, wherein the communication speed of the wireless communication via the second type interface is the communication speed of the wireless communication via the first type interface. the second type of interface, which is faster than
The computer program causes a computer installed in the communication device to perform the following processes, namely:
a specific data reception process of receiving specific data from the mobile terminal via the first type interface;
for the mobile terminal to perform wireless communication using the first wireless network in a first case where the communication device belongs to a first wireless network when the specific data is received; a first information transmission process of transmitting first information to the mobile terminal via the first type of interface, the first information transmission process transmitting first information to the mobile terminal via the second type of interface; the first information transmission process, which is a wireless network for performing communication;
When the specific data is received, in a second case where the communication device does not belong to the first wireless network but belongs to a second wireless network, a third wireless network is newly established. forming a forming process, wherein each of the second wireless network and the third wireless network is a wireless network for performing wireless communication via the second type of interface;
In the second case, second information for the mobile terminal to perform wireless communication using the second wireless network; and second information for the mobile terminal to perform wireless communication using the third wireless network. a second information transmission process of transmitting third information for executing the above to the mobile terminal via the first type of interface;
In the first case, the mobile terminal and the target data are communicated using the first wireless network, and in the second case, the second wireless network or the third wireless a device-side communication execution process that executes communication between the mobile terminal and the target data using a network;
A computer program that runs
(Item 14)
A computer program for a communication device for communicating target data with a mobile terminal,
The communication device includes:
a first type interface for performing wireless communication with the mobile terminal;
A second type of interface for performing wireless communication with the mobile terminal, wherein the communication speed of the wireless communication via the second type interface is the communication speed of the wireless communication via the first type interface. the second type of interface, which is faster than
The computer program causes a computer installed in the communication device to perform the following processes, namely:
A specific data reception process of receiving specific data from the mobile terminal via the first type interface, the specific data including identification information for identifying a wireless network to which the mobile terminal belongs. the specific data reception process, including;
If the communication device belongs to a fifth wireless network when the specific data is received, the identification information is used to determine whether the mobile terminal belongs to the fifth wireless network. The fifth wireless network is a wireless network through which the communication device operates as a slave station and executes wireless communication via the second type of interface. The judgment 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; , transmitting sixth information for the mobile terminal to perform wireless communication using a sixth wireless network to the mobile terminal via the first type interface,
In a 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. and information transmission processing for transmitting to the mobile terminal,
the information transmission process, wherein the sixth wireless network is a wireless network for the communication device to operate as a master station and execute wireless communication via the second type interface;
In the third case, communication of the mobile terminal and the target data is performed using the fifth wireless network or the sixth wireless network, and in the fourth case, the sixth wireless network a device-side communication execution process that executes communication between the mobile terminal and the target data using a network;
A computer program that runs
(Item 15)
A computer program for a mobile terminal for communicating target data with a communication device,
The mobile terminal is
a first type interface for performing wireless communication with the communication device;
A second type of interface for performing wireless communication with the communication device, wherein the communication speed of wireless communication via the second type interface is the communication speed of wireless communication via the first type interface. the second type of interface, which is faster than
The computer program causes the computer installed in the mobile terminal to perform the following processes, namely:
a specific data transmission process of transmitting specific data to the communication device via the first type interface;
an information receiving process of receiving 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 mobile terminal to perform wireless communication using one wireless network, and the specific information includes one piece of information for the mobile terminal to perform wireless communication using one wireless network, and the mobile terminal performs wireless communication using another wireless network different from the one wireless network. If other information for executing communication is not included, executing communication between the communication device and the target data using the one wireless network,
When the specific information includes a plurality of pieces of information including the one piece of information and the other information, each of the plurality of wireless networks including the one wireless network and the other wireless network A terminal-side communication execution process that sequentially uses the communication device to communicate the target data,
each of the plurality of wireless networks is a wireless network for executing wireless communication via the second type interface;
A computer program that runs

2: Communication system, 4a, 4b: AP, 10: MFP, 50: Mobile terminal, WS1 to WS6: Wireless settings

Claims (14)

A mobile terminal for performing communication between a communication device and target data,
a first type interface for performing wireless communication with the communication device;
A second type of interface for performing wireless communication with the communication device, wherein the communication speed of wireless communication via the second type interface is the communication speed of wireless communication via the first type interface. the second type of interface, which is faster than
an information receiving unit that receives specific information from the communication device via the first type interface;
When receiving first specific information that is the specific information from the communication device in a state where the mobile terminal belongs to a first wireless network formed by a relay device different from the communication device, , a first confirmation signal transmitter that transmits a first confirmation signal to the first wireless network via the second type of interface using the first specific information;
a response signal receiving unit that receives a first response signal to the first confirmation signal from the communication device via the relay device and the second type interface;
When the first response signal is received from the communication device, communicating the target data with the communication device using the first wireless network via the second type of interface. a first terminal side communication execution unit;
When receiving second specific information that is the specific information from the communication device, the mobile terminal uses the second specific information to transmit the second specific information via the second type of interface. a terminal-side connection execution unit that executes connection processing for belonging to a wireless network;
a second terminal-side communication execution unit that executes communication of the target data with the communication device using the second wireless network via the second type of interface;
A mobile terminal equipped with. The mobile terminal according to claim 1 , wherein the information receiving unit receives the second specific information from the communication device in a state where the mobile terminal does not belong to the first wireless network. The mobile terminal further includes:
a second confirmation signal transmitter that transmits a second confirmation signal to the second wireless network via the second type of interface after the connection process is executed;
a terminal-side determination unit that determines whether a second response signal to the second confirmation signal has been received from the communication device via the second type interface;
The second terminal-side communication execution unit utilizes the second wireless network via the second type of interface when it is determined that the second response signal has been received from the communication device. The mobile terminal according to claim 1 or 2 , wherein the mobile terminal executes communication of the target data with the communication device. The first terminal-side communication execution unit is configured to perform communication of the target data, which is transmission of print data to the communication device, and communication of the target data, which is reception of scan data from the communication device. The mobile terminal according to any one of claims 1 to 3 , which performs at least one of the following. The second type of interface performs wireless communication in accordance with the 802.11 standard of the Institute of Electrical and Electronics Engineers, Inc. and a standard based on the 802.11 standard of the Institute of Electrical and Electronics Engineers, Inc. The mobile terminal according to any one of claims 1 to 4 , which is an interface for executing the mobile terminal. The mobile terminal according to any one of claims 1 to 5 , wherein the first type of interface is an interface for performing wireless communication in accordance with a Near Field Communication standard. The first confirmation signal is a PING signal,
The mobile terminal according to any one of claims 1 to 6 , wherein the first response signal is a PING Response signal. A communication device for communicating between a mobile terminal and target data,
a first type interface for performing wireless communication with the mobile terminal;
A second type of interface for performing wireless communication with the mobile terminal, wherein the communication speed of the wireless communication via the second type interface is the communication speed of the wireless communication via the first type interface. the second type of interface, which is faster than
an information transmitter that transmits specific information to the mobile terminal via the first type interface;
When first specific information that is the specific information is transmitted to the mobile terminal in a state where the mobile terminal belongs to a first wireless network formed by a relay device different from the communication device; , a first confirmation signal receiving unit that receives a first confirmation signal from the mobile terminal via the relay device and the second type interface using the first wireless network;
When the first confirmation signal is received from the mobile terminal, a first response signal to the first confirmation signal is transmitted to the mobile terminal via the relay device and the second type of interface. a first response signal transmitter;
After the first response signal is transmitted to the mobile terminal, a first step of communicating the target data with the mobile terminal using the first wireless network via the second type of interface. 1 device-side communication execution unit;
When the second specific information that is the specific information is transmitted to the mobile terminal, the mobile terminal uses the second specific information to transmit the second specific information to the mobile terminal via the second type of interface. a device-side connection execution unit that executes connection processing for belonging to a wireless network;
a second device-side communication execution unit that executes communication of the target data with the mobile terminal using the second wireless network via the second type of interface;
A communication device comprising: The communication device according to claim 8 , wherein the information transmitting unit transmits the second specific information to the mobile terminal in a state where the mobile terminal does not belong to the first wireless network. The communication device further includes:
a second device-side determination unit that determines whether a second confirmation signal is received from the mobile terminal via the second type of interface after the connection process is executed;
If it is determined that the second confirmation signal has been received from the mobile terminal, the second confirmation signal in response to the second confirmation signal is sent via the second type of interface using the second wireless network. a second response signal transmitter that transmits a response signal to the mobile terminal,
After the second response signal is transmitted to the mobile terminal, the second device-side communication execution unit is configured to communicate with the mobile terminal using the second wireless network via the second type of interface. The communication device according to claim 8 or 9 , which executes communication of the target data with a terminal. The second type of interface performs wireless communication in accordance with the 802.11 standard of the Institute of Electrical and Electronics Engineers, Inc. and a standard based on the 802.11 standard of the Institute of Electrical and Electronics Engineers, Inc. 11. The communication device according to any one of claims 8 to 10 , being an interface for executing. The communication device according to any one of claims 8 to 11 , wherein the first type of interface is an interface for performing wireless communication in accordance with a Near Field Communication standard. The first confirmation signal is a PING signal,
The communication device according to any one of claims 8 to 12 , wherein the first response signal is a PING Response signal. A computer program for a mobile terminal for communicating target data with a communication device,
The mobile terminal is
a first type interface for performing wireless communication with the communication device;
A second type of interface for performing wireless communication with the communication device, wherein the communication speed of wireless communication via the second type interface is the communication speed of wireless communication via the first type interface. the second type of interface, which is faster than
The computer program causes the computer installed in the mobile terminal to perform the following processes, namely:
an information receiving process of receiving specific information from the communication device via the first type interface;
When receiving first specific information that is the specific information from the communication device in a state where the mobile terminal belongs to a first wireless network formed by a relay device different from the communication device, , a first confirmation signal transmission process of transmitting a first confirmation signal to the first wireless network via the second type of interface using the first specific information;
a response signal reception process of receiving a first response signal to the first confirmation signal from the communication device via the relay device and the second type interface;
When the first response signal is received from the communication device, communicating the target data with the communication device using the first wireless network via the second type of interface. a first terminal side communication execution process;
When receiving second specific information that is the specific information from the communication device, the mobile terminal uses the second specific information to transmit the second specific information via the second type of interface. a terminal-side connection execution process that executes a connection process for belonging to a wireless network;
a second terminal-side communication execution process that executes communication of the target data with the communication device using the second wireless network via the second type of interface;
A computer program that runs