JP2019024238A - Communication device - Google Patents

Abstract

To provide a technique for a communication device to appropriately communicate with a mobile terminal.SOLUTION: When an MFP is participating in a radio network (YES in S4), the MFP transmits radio setting for a mobile terminal to belong to the radio network to the mobile terminal using an NFCI/F (S16). On the other hand, when the MFP is not participating in the radio network (NO in S4), it newly constructs a radio network for both MFP and mobile terminal to belong to (S18).SELECTED DRAWING: Figure 2

Description

  The technology disclosed in the present specification relates to a communication device for executing communication of target data with a portable terminal.

  Patent Documents 1 and 2 disclose a technique for two wireless communication apparatuses to perform wireless communication. In Patent Documents 1 and 2, the two communication devices execute wireless setting communication according to short-range wireless communication (that is, wireless communication according to NFC (Near Field Communication)). The above wireless setting is a setting for executing wireless communication according to a communication method (for example, IEEE 802.11a, 802.11b) different from the NFC method. Thus, the two communication devices can execute wireless communication according to the wireless setting.

JP 2007-166538 A JP 2011-146991 A

"Wi-Fi Peer-to-Peer (P2P) Technical Specification Version 1.1", Wi-Fi Alliance, 2010

  In the present specification, a technology for a communication device to appropriately execute communication with a mobile terminal is provided.

  The technology disclosed by this specification is a communication device. The communication apparatus includes a first type interface, a second type interface, and a control unit. The first type interface is an interface for performing wireless communication with the mobile terminal. The second type interface is an interface for performing wireless communication with the mobile terminal. The communication speed of wireless communication using the second type interface is faster than the communication speed of communication using the first type interface. The control unit includes a determination unit and a communication execution unit. The determination unit determines whether or not the communication device currently belongs to a target network for executing wireless communication using the second type interface. In the first case where the communication device is determined to currently belong to the first target network, the communication execution unit sets the wireless setting for causing the portable terminal to belong to the first target network. After executing the transmission process to transmit to the portable terminal using the second, the second type interface is used to perform wireless communication of the target data via the portable terminal and the first target network. The communication execution unit identifies the communication device and the mobile terminal so that both the communication device and the mobile terminal belong to the second target network when the communication device is determined not to currently belong to the target network. After executing the process, wireless communication of the target data via the portable terminal and the second target network is executed using the second type interface.

  In the above configuration, when it is determined that the communication device currently belongs to the first target network, the mobile terminal can belong to the first target network using the wireless setting received from the communication device. . Thereby, the communication apparatus can perform wireless communication of the target data with the mobile terminal at a relatively high communication speed via the second type interface. On the other hand, when it is determined that the communication device does not currently belong to the target network, a state in which both the communication device and the mobile terminal belong to the second target network can be realized by the specifying process. Thereby, the communication apparatus can perform communication of target data with a portable terminal at a relatively high communication speed via the second type interface. According to this configuration, the communication device can appropriately perform wireless communication with the mobile terminal by executing processing according to whether or not the communication device currently belongs to the network.

  The second type interface may be an interface for the communication device to perform specific wireless communication. The specific wireless communication may be wireless communication performed by the communication device and the mobile terminal without using an access point different from that of the communication device and the mobile terminal. The specific process may be a process for the communication device and the mobile terminal to execute specific wireless communication using the second type interface. According to this configuration, the communication device can perform wireless communication of target data with the mobile terminal without using an access point.

  The communication apparatus includes a plurality of states including a parent station state that functions as a parent station of the target wireless network, a child station state that functions as a child station of the wireless network, and a device state different from the parent station state and the child station state May be selectively operable in any of the states. The communication device may be capable of executing specific wireless communication via the target wireless network by operating in either the parent station state or the slave station state in the target wireless network. In the second case, the communication execution unit is a second target network for executing specific wireless communication, and newly constructs a second target network to which the communication device and the mobile terminal should belong The specific process may be executed. According to this configuration, when the communication device does not currently belong to the target network, the communication device can perform wireless communication of the target data with the mobile terminal via the newly constructed second wireless network. Can be performed appropriately.

  In the second case, the communication execution unit performs the selective determination process for selectively determining whether the communication apparatus should operate in the master station state or the slave station state in the second target network. The communication device may execute a specific process including a process of determining that the communication apparatus should operate as the master station state in the second target network. According to this configuration, the second wireless network in which the communication device inevitably operates in the master station state can be newly constructed. Accordingly, the communication device can appropriately perform wireless communication of the target data with the portable terminal by operating as the master station state in the newly constructed second wireless network.

  The control unit may further include a receiving unit that receives specific information from the mobile terminal using the first type interface. In the second case, the communication execution unit is a specific wireless setting for the communication device to belong to the second target network in a specific case where the mobile terminal currently belongs to the second target network. The specific process for causing the communication device to belong to the second target network may be executed using the specific wireless setting included in the information. According to this configuration, the communication device can belong to the second target network to which the mobile terminal currently belongs. As a result, the communication device can appropriately execute wireless communication of the target data with the portable terminal via the second target network.

  The communication device may be capable of executing specific wireless communication performed by the communication device and the mobile terminal without using an access point different from the communication device and the mobile terminal, using the second type interface. . In a specific case, the communication execution unit uses a specific wireless setting to specify that the communication device belongs to the second target network when the specific wireless setting is included in the specific information. Processing may be executed. The communication execution unit is a second target network for the communication device to execute the specific wireless communication when the specific wireless setting is not included in the specific information in the specific case, and the communication device And a specific process for newly constructing a second target network to which the mobile terminal should belong. According to this configuration, when a specific wireless setting for acquiring the mobile terminal belonging to the second target network to which the mobile terminal currently belongs is acquired, the communication apparatus is connected to the second target network to which the mobile terminal currently belongs. Can belong. As a result, the communication device can appropriately execute wireless communication of the target data with the portable terminal via the second target network. On the other hand, the communication device can newly construct a second target network for executing specific wireless communication when specific wireless settings are not acquired. As a result, the communication device can appropriately execute wireless communication of the target data with the portable terminal via the second target network.

  The communication apparatus includes a master station state that functions as a master station of the target wireless network, a slave station state that functions as a slave station of the target wireless network, and a plurality of device states that are different from the master station state and the slave station state. It may be selectively operable in any of the states. The communication device operates in one of the parent station state and the child station state in the target wireless network, thereby performing specific wireless communication via the wireless network using the second type interface. It may be executable. The communication device may further be capable of performing other wireless communication via the access point between the communication device and the mobile terminal using the second type interface. The communication execution unit is for the mobile device to belong to the first target network in the first case that the communication device currently belongs to the first target network for executing another wireless communication. You may perform the transmission process which transmits radio | wireless setting to a portable terminal via a 1st type interface. The communication execution unit is configured such that the communication device currently belongs to a first target network for the communication device to execute specific communication, and the communication device operates as a master station state in the first target network. In the first case, a transmission process for transmitting the wireless setting for the mobile terminal to belong to the first target network to the mobile terminal via the first type interface may be executed. The communication execution unit is configured such that the communication device currently belongs to the first target network by the communication device executing a specific communication, and the communication device operates as a slave station state in the first target network. In the first case, the transmission process need not be executed. According to this configuration, when the communication device currently belongs to the first target network for performing another wireless communication, the communication device is relatively connected via the second type interface. The target data can be communicated with the portable terminal at a high communication speed. In addition, when the communication device is operating as a master station state in the first target network, the communication device is connected to the portable terminal and the target data via the first target network to which the communication device currently belongs. The communication can be appropriately executed. On the other hand, the communication device can suppress the mobile terminal from participating in the first wireless network when the communication device is operating in the slave station state in the first wireless network.

  In the first case, the communication execution unit may execute the transmission process when the mobile terminal does not currently belong to the first target network. In the first case, the communication execution unit may not execute the transmission process when the mobile terminal currently belongs to the first target network. According to this configuration, the communication device does not need to execute the transmission process when both the communication device and the mobile terminal currently belong to the first target network. Accordingly, the communication device can execute communication of the target data with the portable terminal via the first target network without executing the transmission process.

  The control unit may further include a receiving unit that receives specific information from the portable terminal using the first type interface. The determination unit may further determine whether the mobile terminal currently belongs to the first target network using specific information. In the first case, the communication execution unit may execute the transmission process when it is determined that the mobile terminal does not currently belong to the first target network. In the first case, the communication execution unit may not perform the transmission process when it is determined that the mobile terminal currently belongs to the first target network. According to this configuration, the communication device can appropriately determine whether or not the mobile terminal currently belongs to the first target network.

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

1 shows a configuration of a communication system. 2 shows a flowchart of communication processing executed by the multi-function device of the first embodiment. The sequence diagram for demonstrating the process which each apparatus in a 1st condition performs is shown. The sequence diagram for demonstrating the process which each apparatus performs in a 2nd condition is shown. The sequence diagram for demonstrating the process which each apparatus in a 3rd condition performs is shown. The sequence diagram for demonstrating the process which each apparatus in a 4th condition performs is shown. The sequence diagram for demonstrating the process which each apparatus in a 5th condition performs is shown. 7 shows a flowchart of communication processing executed by the multi-function device of the second embodiment. The sequence diagram for demonstrating the process which each apparatus in a 6th condition performs is shown. 7 shows a flowchart of communication processing executed by a multi-function device of a third embodiment. The sequence diagram for demonstrating the process which each apparatus in a 7th condition performs is shown.

(First embodiment)
(Configuration of communication system)
As shown in FIG. 1, the communication system 2 includes a multi-function device (hereinafter referred to as “MFP” (abbreviation of Multi-Function Peripheral)) 10, a portable terminal 50, and an access point (hereinafter referred to as “AP”). ) 6 and PC8. The MFP 10 and the portable terminal 50 can execute short-range wireless communication. Near field communication is wireless communication according to the NFC system. In this embodiment, wireless communication according to the NFC scheme is executed based on the international standard of ISO / IEC21481 or 18092.

  Further, the MFP 10 can execute wireless communication in accordance with a WiFi Direct method described later. Hereinafter, WiFi Direct is referred to as “WFD”. In WFD, wireless communication is performed based on the IEEE standard of IEEE (abbreviation of The Institute of Electrical and Electronics Engineers, Inc.) and the standard conforming thereto (for example, 802.11a, 11b, 11g, 11n, etc.). Executed. The NFC method and the WFD method (hereinafter referred to as “WFD method”) are different in wireless communication method (ie, wireless communication standard). Further, the communication speed of the wireless communication according to the WFD method is faster than the communication speed of the wireless communication according to the NFC method.

  For example, the MFP 10 can establish a WFD network by establishing a connection (hereinafter referred to as “WFD connection”) with the mobile terminal 50 in accordance with the WFD method. Similarly, the MFP 10 can establish a WFD network by establishing a WFD connection with the PC 8.

  Further, the PC 8, the MFP 10, and the portable terminal 50 can execute wireless communication in accordance with a normal Wi-Fi (for example, IEEE 802.11) method different from the WFD method. Generally speaking, the normal wireless communication in accordance with Wi-Fi is a wireless communication in which AP6 is used, and the wireless communication in accordance with the WFD method is a wireless communication in which AP6 is not used. For example, the MFP 10 can belong to the normal Wi-Fi network by establishing a connection with the AP 6 (hereinafter referred to as “normal Wi-Fi connection”) according to the normal Wi-Fi. The MFP 10 can execute wireless communication with another device (for example, the PC 8 or the portable terminal 50) belonging to the normal Wi-Fi network via the AP 6. Note that the NFC method and the normal Wi-Fi method (hereinafter referred to as “normal Wi-Fi method”) differ in the wireless communication method (that is, wireless communication standard). Further, the normal Wi-Fi communication speed is faster than the NFC communication speed.

(WFD)
WFD is a standard established by the Wi-Fi Alliance. WFD is described in “Wi-Fi Peer-to-Peer (P2P) Technical Specification Version 1.1” created by Wi-Fi Alliance.

  As described above, the PC 8, the MFP 10, and the portable terminal 50 can each perform wireless communication in accordance with the WFD method. Hereinafter, a device capable of performing wireless communication in accordance with the WFD method is referred to as “WFD-compatible device”. In the WFD standard, three states of a Group Owner state (hereinafter referred to as “G / O state”), a client state, and a device state are defined as states of a WFD-compatible device. The WFD compatible device can selectively operate in one of the above three states.

  A WFD network is configured by the devices in the G / O state and the devices in the client state. In the WFD network, there can be only one device in the G / O state, but there can be one or more devices in the client state. A device in the G / O state manages one or more devices in the client state. More specifically, the G / O state device generates a management list in which identification information (that is, MAC address) of each of one or more client state devices is described. When the device in the G / O state newly belongs to the WFD network, the device in the G / O state adds the identification information of the device to the management list, and when the device in the client state leaves the WFD network, the identification information of the device is added. Clear from management list.

  A device in the G / O state is registered with a device registered in the management list, that is, a device in a client state (that is, a device belonging to the WFD network) with target data (for example, in the network layer of the OSI reference model). Wireless communication of data including information (print data, scan data, etc.) can be performed. However, a device in the G / O state is not connected to an unregistered device that is not registered in the management list. Data for the unregistered device belonging to the WFD network (for example, data that does not include network layer information (Probe) Wireless communication of the physical data (request signal, probe response signal, etc.) can be performed, but wireless communication of the above target data cannot be performed, for example, the MFP 10 in the G / O state is in the management list. The print data can be received wirelessly from the registered mobile terminal 50 (that is, the mobile terminal 50 in the client state), but the print data cannot be received wirelessly from a device that is not registered in the management list.

  In addition, a G / O state device can relay wireless communication of target data (print data, scan data, etc.) between a plurality of client state devices. For example, when the portable terminal 50 in the client state should wirelessly transmit print data to another printer in the client state, the portable terminal 50 first wirelessly transmits the print data to the MFP 10 in the G / O state. In this case, the MFP 10 wirelessly receives print data from the portable terminal 50 and transmits the print data wirelessly to the other printer. That is, a device in the G / O state can execute the AP function of the wireless network.

  Note that a WFD compatible device that does not belong to the WFD network (that is, a device that is not registered in the management list) is a device in a device state. The device in the device state can execute wireless communication of data (physical layer data such as a probe request signal and a probe response signal) for belonging to the WFD network, but the target data (print data, Wireless communication of scan data or the like is impossible.

  In the following, a device that is not capable of performing wireless communication in accordance with the WFD scheme but is capable of performing wireless communication in accordance with normal Wi-Fi is referred to as “a WFD non-compliant device”. A “non-WFD compatible device” can also be referred to as a “legacy device”. A device that does not support WFD cannot operate in the G / O state. A device in the G / O state can describe identification information of a device that does not support WFD in the management list.

(Configuration of MFP 10)
The MFP 10 includes an operation unit 12, a display unit 14, a print execution unit 16, a scan execution unit 18, a wireless LAN interface (hereinafter referred to as “I / F”) 20, an NFC I / F 22, And a control unit 30. The operation unit 12 includes a plurality of keys. The user can input various instructions to the MFP 10 by operating the operation unit 12. The display unit 14 is a display for displaying various information. The print execution unit 16 is a printing mechanism such as an inkjet method or a laser method. The scan execution unit 18 is a scan mechanism such as a CCD or CIS.

  The wireless LAN I / F 20 is an interface for the control unit 30 to execute wireless communication according to the WFD method and wireless communication according to normal Wi-Fi. The wireless LAN I / F 20 is physically one interface. However, the wireless LAN I / F 20 includes a MAC address used in wireless communication in accordance with the WFD method (hereinafter referred to as “MAC address for WFD”) and a MAC address used in wireless communication in accordance with normal Wi-Fi. Both addresses (hereinafter referred to as “normal Wi-Fi MAC addresses”) are assigned. More specifically, a normal Wi-Fi MAC address is pre-assigned to the wireless LAN I / F 20. The control unit 30 generates a WFD MAC address using the normal Wi-Fi MAC address, and assigns the WFD MAC address to the wireless LAN I / F 20. The WFD MAC address is different from the normal Wi-Fi MAC address. Therefore, the control unit 30 can simultaneously execute both wireless communication in accordance with the WFD method and wireless communication in accordance with normal Wi-Fi via the wireless LAN I / F 20. As a result, a situation can be established in which the MFP 10 belongs to the WFD network and also belongs to the normal Wi-Fi network.

  The G / O state device can describe not only the identification information of the WFD-compatible device in the client state but also the identification information of the WFD-incompatible device in the management list. That is, a device in the G / O state can establish a WFD connection with a device that does not support WFD. Generally speaking, the WFD connection is a wireless connection in which the WFD MAC address of the MFP 10 is used. The WFD network is a wireless network in which the WFD MAC address of the MFP 10 is used. Similarly, the normal Wi-Fi connection is a wireless connection in which the normal Wi-Fi MAC address of the MFP 10 is used. The normal Wi-Fi network is a wireless network in which the normal Wi-Fi MAC address of the MFP 10 is used.

  The user operates the operation unit 12 to change the setting of the wireless LAN I / F 20, thereby enabling wireless communication in accordance with the WFD scheme using the wireless LAN I / F 20 (hereinafter referred to as “WFD = ON”). Mode) and a mode in which wireless communication according to the WFD method using the wireless LAN I / F 20 cannot be executed (hereinafter referred to as “WFD = OFF mode”). Can do. The mode setting unit 46 sets either the WFD = ON mode or the WFD = OFF mode according to the user's operation. Specifically, the mode setting unit 46 stores a mode value representing a mode set by the user in the memory 34.

  In the state where the WFDI / F = OFF mode, the control unit 30 executes each process according to the WFD method (for example, a process for setting the MFP 10 to a spontaneous G / O mode described later, G / O negotiation, etc.). Can not do it. In the state where WFDI / F = ON, the memory 34 stores a value indicating the current state of the MFP 10 relating to WFD (any one of the G / O state, the client state, and the device state).

  The NFC I / F 22 is an interface for the control unit 30 to perform wireless communication according to the NFC scheme. The NFC I / F 22 is configured by a chip physically different from the W-Fi I / F 20.

  Note that the communication speed of wireless communication via the wireless LAN I / F 20 (for example, the maximum communication speed is 11 to 454 Mbps) is the communication speed of wireless communication via the NFC I / F 22 (for example, the maximum communication speed is 100 to 424 Kbps). Faster than). Furthermore, the frequency of the carrier wave (for example, 2.4 GHz band and 5.0 GHz band) in the wireless communication via the wireless LAN I / F 20 is the frequency of the carrier wave (for example, 13.56 MHz band) in the wireless communication via the NFC I / F 22. Is different. In addition, when the distance between the MFP 10 and the portable terminal 50 is approximately 10 cm or less, the control unit 30 can execute wireless communication with the portable terminal 50 according to the NFC scheme via the NFC I / F 22. On the other hand, regardless of whether the distance between the MFP 10 and the portable terminal 50 is 10 cm or less or 10 cm or more (for example, about 100 m at the maximum), the control unit 30 uses the WFD method via the wireless LAN I / F 20. Wireless communication in accordance with the mobile terminal 50 and wireless communication in accordance with normal Wi-Fi. That is, the maximum distance that the MFP 10 can execute wireless communication with a communication destination device (for example, the portable terminal 50) via the wireless LAN I / F 20 is the maximum distance that the MFP 10 can communicate with the communication destination device via the NFC I / F 22. It is larger than the maximum distance at which wireless communication can be performed.

  The control unit 30 includes a CPU 32 and a memory 34. The CPU 32 executes various processes according to the program stored in the memory 34. The functions of the units 40 to 46 are realized by the CPU 32 executing the process according to the program.

  The memory 34 includes a ROM, a RAM, a hard disk, and the like. The memory 34 stores the above program executed by the CPU 32. The memory 34 includes a work area 38. When the MFP 10 currently belongs to the WFD network, the work area 38 communicates information indicating that the MFP 10 currently belongs to the WFD network and target data (for example, print data) via the WFD network. Wireless settings (including authentication method, encryption method, password, wireless network SSID (Service Set Identifier), BSSID (Basic Service Set Identifier)). The work area 38 includes information indicating that the MFP 10 currently belongs to the normal Wi-Fi network when the MFP 10 currently belongs to the normal Wi-Fi network, and target data via the normal Wi-Fi network. The wireless setting for executing the communication is stored. The SFD of the WFD network is a network identifier for identifying the WFD network, and the SSID of the normal Wi-Fi network is a network identifier for identifying the normal Wi-Fi network. A BSSID of a WFD network is an identifier unique to a device in a G / O state (for example, a MAC address of a device in a G / O state), and a BSSID of a normal Wi-Fi network is an identifier unique to an AP (for example, an AP Identifier).

  The work area 38 further stores a value indicating the current state of the WFD (G / O state, client state, or device state) when the MFP 10 is operating in accordance with the WFD method. The work area 38 further stores a mode value representing the WFD = ON mode or a mode value representing the WFD = OFF mode.

  Note that the user can set the MFP 10 to the spontaneous G / O mode by operating the operation unit 12. The spontaneous G / O mode is a mode in which the MFP 10 maintains operation in the G / O state. The work area 38 in the memory 34 further stores a value indicating whether or not the MFP 10 is set to the spontaneous G / O mode. As will be described in detail later, the WFD compatible device in the device state normally operates in either the G / O state or the client state when establishing a WFD connection with another WFD compatible device in the device state. Perform a G / O negotiation to selectively determine what to do. When the MFP 10 is set to the spontaneous G / O mode, the MFP 10 maintains the operation in the G / O state without executing the G / O negotiation.

(Configuration of mobile terminal 50)
The mobile terminal 50 is, for example, a mobile phone (for example, a smartphone), a PDA, a notebook PC, a tablet PC, a portable music player, a portable video player, or the like. The portable terminal 50 includes two wireless interfaces, a wireless LAN I / F (that is, an interface for WFD and normal Wi-Fi) and an NFC I / F. Accordingly, the portable terminal 50 can execute wireless communication with the MFP 10 using the wireless LAN I / F, and can execute wireless communication with the MFP 10 using the NFC I / F. The portable terminal 50 includes an application program for causing the MFP 10 to execute a function (for example, a print function, a scan function, etc.). The application program may be installed on the portable terminal 50 from a server provided by the vendor of the MFP 10 or may be installed on the portable terminal 50 from a medium shipped with the MFP 10.

  Similar to the MFP 10, the portable terminal 50 includes a work area 58 in the memory 54. The work area 58 is a wireless setting (authentication method, encryption method, password, wireless) for performing communication through the network when the mobile terminal 50 currently belongs to the WFD network or the normal Wi-Fi network. Network SSID and BSSID). Further, when the mobile terminal 50 is operating in accordance with the WFD method, the work area 58 displays a state value indicating the state of the mobile terminal 50 (that is, any one of the G / O state, the client state, and the device state). Store.

(Configuration of PC8)
The PC 8 includes a wireless LAN I / F (that is, an interface for WFD and normal Wi-Fi), but does not include an NFC I / F. Accordingly, the PC 8 can execute communication with the MFP 10 using the wireless LAN I / F, but cannot execute wireless communication according to the NFC method. The PC 8 includes a driver program for causing the MFP 10 to execute processing (for example, printing processing, scanning processing, etc.). Note that the driver program is normally installed in the PC 8 from a medium shipped with the MFP 10. However, in a modification, the driver program may be installed on the PC 8 from a server provided by the vendor of the MFP 10.

(Configuration of AP6)
The AP 6 is not a device in the WFD G / O state, but is a normal access point called a wireless access point or a wireless LAN router. The AP 6 can establish normal Wi-Fi connection with a plurality of devices. Thereby, a normal Wi-Fi network including the AP 6 and a plurality of devices is constructed. The AP 6 receives data from one of a plurality of devices belonging to the normal Wi-Fi network, and transmits the data to another one of the plurality of devices. That is, the AP 6 relays communication between a pair of devices belonging to the normal Wi-Fi network.

  The difference between the WFD G / O state device and a normal AP is as follows. That is, when a device in the WFD G / O state leaves the WFD network to which the device currently belongs and newly belongs to another WFD network, the device is in a state other than the G / O state (that is, the client state). Can work. In contrast, a normal AP (that is, AP6) executes a function of relaying communication between a pair of devices regardless of which normal Wi-Fi network the AP belongs to, and cannot operate in a client state. .

(Communication process executed by MFP 10)
With reference to FIG. 2, a communication process executed by the MFP 10 will be described. The control unit 30 executes a communication process when the MFP 10 is turned on. In S2, the receiving unit 40 monitors reception of NFC information by executing wireless communication according to the NFC scheme. The receiving unit 40 receives NFC information via the NFC I / F 22. Specifically, the receiving unit 40 monitors whether an NFC communication session is established between the MFP 10 and the portable terminal 50. While the MFP 10 is turned on, the receiving unit 40 causes the NFC I / F 22 to transmit a radio wave for detecting a device that can perform wireless communication in accordance with the NFC scheme.

  The user of the portable terminal 50 starts an application program. The user operates the portable terminal 50 to cause the portable terminal 50 to generate NFC information including a process execution instruction (for example, a print instruction and a scan instruction) indicating a process to be executed by the MFP 10. The NFC information further includes the SSID and BSSID of the wireless network to which the mobile terminal 50 currently belongs when the mobile terminal 50 currently belongs to the wireless network. Note that the case where the mobile terminal 50 currently belongs to the wireless network means that at least one of the WFD connection and the normal Wi-Fi connection is connected between the mobile terminal 50 and another device (for example, AP6, MFP10). Is established.

  When the user brings the mobile terminal 50 closer to the MFP 10 and the distance between the mobile terminal 50 and the MFP 10 becomes smaller than the distance (for example, 10 cm) that radio waves reach each other, the mobile terminal 50 receives the radio waves from the MFP 10. Then, a response radio wave is transmitted to the MFP 10. As a result, the control unit 30 receives the response radio wave from the portable terminal 50 and establishes an NFC communication session. When the NFC communication session is established, the portable terminal 50 transmits the generated NFC information to the MFP 10.

  When the NFC information is received (YES in S2), in S4, the determination unit 42 determines whether the MFP 10 currently belongs to the network. Specifically, the determination unit 42 stores in the work area 38 at least one of information indicating that it currently belongs to the WFD network and information indicating that it currently belongs to the normal Wi-Fi network. If it is determined that the MFP 10 currently belongs to the wireless network (YES in S4), the process proceeds to S6. On the other hand, the determination unit 42 determines whether the information indicating that it currently belongs to the WFD network and the information indicating that it currently belongs to the normal Wi-Fi network are not stored in the work area 38. Is not currently belonging to the wireless network (NO in S4), the process proceeds to S8.

  In S <b> 6, the determination unit 42 confirms whether the portable terminal 50 currently belongs to the network to which the MFP 10 currently belongs. Specifically, the determination unit 42 first determines whether the NSID information includes the SSID and BSSID of the network to which the mobile terminal 50 currently belongs. If the SSID and BSSID are not included in the NFC information, the determination unit 42 determines that the portable terminal 50 does not currently belong to the network to which the MFP 10 currently belongs (NO in S6). According to this configuration, the MFP 10 can appropriately determine that the portable terminal 50 does not currently belong to the network to which the MFP 10 currently belongs. When the NSID information includes the SSID and BSSID of the network to which the portable terminal 50 currently belongs, the determination unit 42 determines whether the SSID and BSSID included in the wireless settings stored in the work area 38 Determines whether the SSID and BSSID included in the NFC information match.

  If both the SSID and BSSID match, it is determined that the portable terminal 50 currently belongs to the network to which the MFP 10 currently belongs (YES in S6), and the process proceeds to S7. On the other hand, if at least one of the SSID and BSSID does not match, it is determined that the portable terminal 50 does not currently belong to the network to which the MFP 10 currently belongs (NO in S6), and the process proceeds to S8. According to this configuration, the MFP 10 can appropriately determine whether or not the mobile terminal 50 currently belongs to the network to which the MFP 10 currently belongs. In S6, the determination unit 42 determines whether or not the SSIDs match and determines whether or not the BSSIDs match. Accordingly, the determination unit 42 can determine whether the MFP 10 and the portable terminal 50 belong to the same wireless network constructed by the same AP. More specifically, one AP may construct a plurality of wireless networks by using a plurality of SSIDs. Therefore, if the BSSIDs match and the SSIDs do not match, the MFP 10 and the portable terminal 50 may belong to different wireless networks constructed by the same AP. In the present embodiment, it is possible to determine whether the MFP 10 and the portable terminal 50 belong to the same wireless network more reliably by determining whether both the SSID and the BSSID match. In the modified example, it is not necessary to determine whether the SSIDs match in S6 and whether the BSSIDs match. As a result, even when the MFP 10 and the portable terminal 50 belong to wireless networks constructed by different access points, if the SSID matches, it is determined that the MFP 10 and the portable terminal 50 belong to the same wireless network. obtain.

  When the mobile terminal 50 currently belongs to the network to which the MFP 10 currently belongs, the MFP 10 and the mobile terminal 50 can execute communication via the network to which the MFP 10 currently belongs. That is, the portable terminal 50 can perform wireless communication with the MFP 10 using the wireless settings currently stored in the work area 58. In S7, the control unit 30 transmits setting change unnecessary information indicating that data communication can be performed without changing the wireless setting of the mobile terminal 50 via the NFC I / F 22, and the process proceeds to S20. Note that the setting change unnecessary information includes the IP address of the MFP 10.

  In S8, the determination unit 42 determines whether or not the WFD = ON mode is set. If the mode value stored in the memory 34 is a value representing the WFD = ON mode, the determination unit 42 determines YES in S8 and proceeds to S10. On the other hand, when the mode value stored in the memory 34 is a value representing the WFD = OFF mode, the determination unit 42 determines NO in S8 and proceeds to S9.

  In S9, the communication execution unit 44 changes the mode value stored in the memory 34 to change the WFD = OFF mode to the WFD = ON mode, and proceeds to S15. The communication execution unit 44 further stores setting change information indicating that the mode value has been changed in the memory 34.

  In S10, the determination unit 42 determines whether the MFP 10 is operating as a client state in the wireless network to which the MFP 10 currently belongs. Specifically, the determination unit 42 determines that it is operating as a client state when the state value stored in the work area 38 is a value representing the client state (YES in S10). On the other hand, when the state value stored in the work area 38 is not a value representing the client state, the determining unit 42 determines that the client state is not operating (NO in S10). If YES in S10, the process proceeds to S14.

  On the other hand, in the case of NO in S10, in S12, the determination unit 42 determines whether the MFP 10 is operating in the G / O state in the wireless network to which it currently belongs. Specifically, the determination unit 42 determines that the G / O state is operating when the state value stored in the work area 38 is a value representing the G / O state (YES in S12). ). On the other hand, when the state value stored in the work area 38 is not a value representing the G / O state, the determination unit 42 does not operate as the G / O state (that is, the MFP 10 is in the device state). Judgment is made (NO in S12). If YES in S12, the process proceeds to S13. If NO in S12, the process proceeds to S15.

  In S13, the determination unit 42 determines in advance the number of devices other than the MFP 10 included in the WFD network in which the MFP 10 is operating in the G / O state (that is, a device that has established a connection with the MFP 10). Determine whether the number is less than the maximum number of clients. The determination unit 42 determines YES in S13 when the number of pieces of device identification information stored in the management list is smaller than the maximum number of clients, and determines NO in S13 when equal. If YES in S13, the process proceeds to S16, and if NO in S13, the process proceeds to S14.

  In S14, the communication execution unit 44 transmits communication NG information indicating that the MFP 10 and the portable terminal 50 cannot currently perform communication to the portable terminal 50 using the NFC I / F 22, and performs communication processing. Exit.

  In S15, the communication execution unit 44 sets the MFP 10 to the spontaneous G / O mode. The spontaneous G / O mode is a mode in which the MFP 10 maintains operation in the G / O state. Accordingly, the WFD network is not constructed in the step S15, but the MFP 10 is set to the G / O state. When the MFP 10 is set to the G / O state, the communication execution unit 44 allows the WFD compatible device and / or the non-WFD compatible device to perform wireless communication with the MFP 10 operating in the G / O state via the WFD network. Prepare wireless settings (SSID, BSSID, authentication method, encryption method, password, etc.) for execution. According to this configuration, regardless of whether the device that receives the wireless setting from the MFP 10 (the portable terminal 50 in this embodiment) is a WFD-compatible device or a WFD-incompatible device, the MFP 10 receives the wireless setting. Wireless communication can be executed. Generally, the communication execution unit 44 is used for belonging to a network when the MFP 10 currently belongs to the network according to the first wireless communication method (or wireless communication standard or wireless communication protocol). A second wireless communication method (or wireless communication standard or wireless communication) that is wireless setting and is different from the first wireless communication method (or wireless communication standard or wireless communication protocol). The wireless setting for operating according to the protocol is transmitted to the communication execution unit 44.

  Note that the authentication method and the encryption method are determined in advance. Moreover, the communication execution part 44 produces | generates a password. The SSID may be generated by the communication execution unit 44 when generating the password, or may be determined in advance. BSSID is the MAC address of the MFP 10. At this stage, the management list managed by the MFP 10 does not describe the identification information of the device connected to the device in the G / O state.

  In S <b> 16, the communication execution unit 44 transmits the prepared wireless setting to the portable terminal 50 using the NFC I / F 22. When the process of S16 is executed after the process of S15, the communication execution unit 44 transmits the wireless setting prepared in the stage (S15) set to the spontaneous G / O mode to the portable terminal 50. When the process of S16 is executed after the process of S13, the communication execution unit 44 sets the NFC I / F 22 for the wireless setting prepared when the WFD network in which the MFP 10 is operating in the G / O state is constructed. It is used and transmitted to the portable terminal 50.

  Next, in S <b> 18, the communication execution unit 44 establishes a WFD connection between the MFP 10 and the mobile terminal 50 using the wireless LAN I / F 20. When receiving the wireless setting of the MFP 10 operating in the G / O state from the MFP 10, the portable terminal 50 stores the received wireless setting in the work area 58. For this reason, the portable terminal 50 performs wireless communication according to normal Wi-Fi. Next, the communication execution unit 44 performs authentication communication, authentication response, association request, association response, and 4-way handshake wireless communication with the mobile terminal 50. Various authentication processes such as SSID authentication, authentication method and encryption method authentication, password authentication, and the like are executed in the process of the wireless communication. When all the authentications are successful, a wireless connection is established between the MFP 10 and the portable terminal 50.

  If both the MFP 10 and the portable terminal 50 are in the device state, when the WFD connection is established between the MFP 10 and the portable terminal 50, one of the MFP 10 and the portable terminal 50 is set to G / In addition to determining as O, G / O negotiation for determining the other of the MFP 10 and the portable terminal 50 as a client is executed. However, since it is determined that the MFP 10 is in the G / O state at the stage where S16 is executed, the communication execution unit 44 does not execute the G / O negotiation, and does the WFD connection with the portable terminal 50. Establish.

  In the process of S18, the communication execution unit 44 acquires the MAC address of the portable terminal 50 using the wireless LAN I / F 20. When the wireless connection is established, the control unit 30 further adds the MAC address of the portable terminal 50 to the management list. Note that the MAC address of the portable terminal 50 is included in the NFC information. As a result, the MFP 10 in the G / O state can perform communication of target data (print data, scan data, etc.) with the portable terminal 50 in accordance with normal Wi-Fi. The target data includes data in the network layer, which is a higher layer than the physical layer of the OSI reference model. Accordingly, the MFP 10 in the G / O state can execute wireless communication in the network layer with the portable terminal 50 in the client state.

  Next, in S <b> 20, the communication execution unit 44 executes data communication processing with the portable terminal 50 via the wireless LAN I / F 20. The content of the data communication process varies depending on the content of the process execution instruction included in the NFC information. When the process execution instruction is a print instruction, the communication execution unit 44 receives print data from the portable terminal 50 in the data communication process. In this case, the control unit 30 causes the print execution unit 16 to execute print processing using the received print data.

  On the other hand, when the process execution instruction is a scan instruction, the control unit 30 causes the scan execution unit 18 to scan the document set in the scan execution unit 18 and generate scan data. Next, the communication execution unit 44 transmits the generated scan data to the mobile terminal 50.

  Next, in S <b> 21, the communication execution unit 44 monitors reception of a disconnection request for disconnecting the connection with the portable terminal 50 from the portable terminal 50 using the wireless LAN I / F 20. If the disconnection request is not received even after the predetermined period has elapsed (NO in S21), the process returns to S2. On the other hand, when the disconnection request is received from the portable terminal 50 within a predetermined period after the data communication process of S20 is completed (YES in S21), the communication execution unit 44 disconnects the wireless connection with the portable terminal 50. . Specifically, the communication execution unit 44 deletes the MAC address of the portable terminal 50 in the management list. Next, in S22, the communication execution unit 44 determines whether the setting of the wireless LAN I / F 20 has been changed by the process of S9. Specifically, when the setting change information is stored in the memory 34, the communication execution unit 44 determines in S9 that the mode value indicating the WFD = OFF mode has been changed to the mode value indicating the WFD = ON mode. (YES in S22), the process proceeds to S23. On the other hand, when the setting change information is not stored in the memory 34, the communication execution unit 44 is not changed from the mode value indicating the WFD = OFF mode to the mode value indicating the WFD = ON mode in S9 (in S22). NO) and return to S2.

  In S23, the communication execution unit 44 determines whether an external device (for example, PC8) other than the portable terminal 50 currently belongs to the WFD network newly constructed in S18. Specifically, when the management list includes identification information other than the identification information of the portable terminal 50, the communication execution unit 44 currently belongs to the WFD network (YES in S23). Judge. In this case, the mode value is not changed, and the process returns to S2. According to this configuration, it is possible to prevent the MFP 10 from being detached from the WFD network when an external device currently belongs to the WFD network.

  On the other hand, the communication execution unit 44 determines that the external device does not currently belong to the WFD network when the identification information other than the portable terminal 50 is not included in the management list (NO in S23). Proceed to S24. In S24, the communication execution unit 44 changes the mode value indicating the WFD = ON mode from the mode value indicating the WFD = OFF mode, and returns to S2. That is, in the communication process, when it is determined in S8 that the WFD = OFF mode, wireless communication using the wireless LAN I / F 20 is temporarily performed with the portable terminal 50 via the WFD network. , WFD = OFF mode is changed to WFD = ON mode. When the WFD = ON mode is changed to the WFD = OFF mode in S25, the WFD network constructed in S18 disappears. According to this configuration, when the mode value is changed from the mode value indicating the WFD = OFF mode to the mode value indicating the WFD = ON mode during communication processing, the mode value can be returned to the setting before the change. it can.

(Effect of this embodiment)
With reference to FIGS. 3-7, the effect of a present Example in the 1st-5th situation is demonstrated. Each of FIGS. 3 to 7 shows a process corresponding to the communication process of FIG.

(First situation)
In the first situation shown in FIG. 3, the MFP 10 and the portable terminal 50 currently belong to the same WFD network or the same normal Wi-Fi network. In this situation, when NFC information is received from the portable terminal 50 using the NFC I / F 22, in S4, the MFP 10 determines that the MFP 10 currently belongs to the network (YES in S4). Next, in S6, the MFP 10 determines that the portable terminal 50 currently belongs to the network to which the MFP 10 currently belongs (YES in S6). In S <b> 7, the MFP 10 transmits setting change unnecessary information to the portable terminal 50 using the NFC I / F 22. Upon receiving the setting change unnecessary information, the portable terminal 50 transmits print data to the MFP 10 using the IP address included in the setting change unnecessary information and the wireless setting stored in the work area 58. The MFP 10 receives the print data using the wireless LAN I / F 20 (S20). Upon receiving the print data, the MFP 10 causes the print execution unit 16 to execute print processing.

  In the sequence diagram of the present specification, the MFP 10 uses wireless communication using the NFC I / F 22 (that is, wireless communication according to the NFC method) and the MFP 10 uses wireless LAN I / F 20 (that is, the WFD method or normal Wi-Fi). -Wireless communication according to Fi) is represented by arrows. The arrow indicating the wireless communication using the wireless LAN I / F 20 is shown thicker than the arrow indicating the wireless communication using the NFC I / F 22.

  According to this configuration, when it is determined that the portable terminal 50 currently belongs to the network to which the MFP 10 currently belongs, the MFP 10 can change the wireless settings currently set for the MFP 10 and the portable terminal 50. In addition, the MFP 10 and the portable terminal 50 can appropriately execute print data communication via the network to which the MFP 10 currently belongs.

(Second situation)
In the second situation shown in FIG. 4, the MFP 10 currently belongs to the WFD network. The MFP 10 operates in the G / O state in the WFD network. The PC 8 in the client state currently belongs to the WFD network. The portable terminal 50 does not currently belong to the wireless network to which the MFP 10 currently belongs. The portable terminal 50 may or may not belong to a wireless network other than the wireless network to which the MFP 10 currently belongs.

  In this situation, when NFC information is received from the portable terminal 50 using the NFC I / F 22, in S4, the MFP 10 determines that the MFP 10 currently belongs to the network (YES in S4). The NFC information includes the SSID and BSSID of the wireless network when the mobile terminal 50 currently belongs to the wireless network. However, if the mobile terminal 50 does not currently belong to the wireless network, the NFC information Does not include SSID and BSSID. Next, in S6, the MFP 10 determines that the portable terminal 50 does not currently belong to the WFD network to which the MFP 10 currently belongs (YES in S6). In S12, the MFP 10 determines that the MFP 10 is in the G / O state (YES in S12). In this case, in S <b> 16, the MFP 10 transmits the wireless setting of the MFP 10 stored in the work area 38 and the IP address of the MFP 10 to the portable terminal 50 using the NFC I / F 22. When the portable terminal 50 receives the wireless setting, the portable terminal 50 stores the received wireless setting in the work area 58. Next, the MFP 10 and the portable terminal 50 establish a WFD connection (S18). Thereby, the portable terminal 50 can belong to the WFD network to which the MFP 10 currently belongs. Note that the MFP 10 transmits wireless settings including the authentication method and the encryption method of the MFP 10 to the portable terminal 50 using the NFC I / F 22. According to this configuration, the portable terminal 50 can execute an authentication process according to the authentication method and the encryption method received from the MFP 10 and execute a process for confirming which authentication method and encryption method should be used. You don't have to. For this reason, the MFP 10 and the portable terminal 50 can establish a connection relatively early.

  Next, the portable terminal 50 transmits print data to the MFP 10 using the wireless setting stored in the work area 58 and the IP address received in S16. The MFP 10 receives the print data using the wireless LAN I / F 20 (S20). Upon receiving the print data, the MFP 10 causes the print execution unit 16 to execute print processing. According to this configuration, when the MFP 10 is operating in the G / O state in the WFD network, the MFP 10 communicates print data with the portable terminal 50 via the WFD network to which the MFP 10 currently belongs. Can be implemented properly.

(Third situation)
In the third situation shown in FIG. 5, the MFP 10 currently belongs to the WFD network. The MFP 10 operates as a client state in the WFD network. In the WFD network, the PC 8 in the G / O state currently belongs, but the portable terminal 50 does not currently belong. The portable terminal 50 is the same as in the second situation.

  In this situation, when NFC information is received from the portable terminal 50 using the NFC I / F 22, in S4, the MFP 10 determines that the MFP 10 currently belongs to the network (YES in S4). Next, in S6, the MFP 10 determines that the portable terminal 50 does not currently belong to the WFD network to which the MFP 10 currently belongs (NO in S6). In S10, the MFP 10 determines that the MFP 10 is in the client state (YES in S10). In this case, in S <b> 14, the MFP 10 transmits communication NG information to the portable terminal 50 using the NFC I / F 22.

  In this case, the MFP 10 does not transmit the wireless setting stored in the work area 38 to the portable terminal 50. According to this configuration, it is not necessary to provide the mobile terminal 50 with the wireless settings of the PC 8 operating in the G / O state in the WFD network. Thereby, it can suppress that the portable terminal 50 enters a WFD network. In addition, the mobile terminal 50 can notify the user of the mobile terminal 50 that the MFP 10 does not perform communication of target data with the mobile terminal 50 by receiving the communication NG information from the MFP 10.

(Fourth situation)
In the fourth situation shown in FIG. 6, the MFP 10 has the wireless LAN I / F 20 set to WFD = ON mode, but does not currently belong to the WFD network. That is, the MFP 10 operates as a device state. Note that the MFP 10 does not currently belong to the normal Wi-Fi network. The portable terminal 50 is the same as in the second situation.

  In this situation, when NFC information is received from the portable terminal 50 using the NFC I / F 22, in S4, the MFP 10 determines that the MFP 10 does not currently belong to the network (NO in S4). In S10 and S12, the MFP 10 determines that the MFP 10 is neither in the G / O state nor in the client state (both NO in S10 and S12). In this case, in S15, the MFP 10 sets the MFP 10 to the spontaneous G / O mode without executing the G / O negotiation.

  Next, in S <b> 16, the MFP 10 stores the wireless setting of the MFP 10 stored in the work area 38 (that is, the wireless setting generated when the spontaneous G / O mode is set in S <b> 15), and the IP address of the MFP 10. Are transmitted to the portable terminal 50 using the NFC I / F 22. When the portable terminal 50 receives the wireless setting, the portable terminal 50 stores the received wireless setting in the work area 58. Next, the MFP 10 and the portable terminal 50 establish a WFD connection (S18). Thereby, the portable terminal 50 can belong to the WFD network in which the MFP 10 is operating in the G / O state.

  Next, the portable terminal 50 transmits print data to the MFP 10 using the wireless setting stored in the work area 58 and the IP address received in S16. The MFP 10 receives the print data using the wireless LAN I / F 20 (S20). Upon receiving the print data, the MFP 10 causes the print execution unit 16 to execute print processing. According to this configuration, the MFP 10 can newly construct a WFD network in which the MFP 10 operates in the G / O state in the WFD network. Thereby, the MFP 10 can appropriately execute the communication of the print data with the portable terminal 50 via the newly constructed WFD network. Further, since the MFP 10 inevitably operates in the G / O state in the newly constructed WFD network, it is possible to determine an authentication method or the like used in the WFD network.

(5th situation)
In the fifth situation shown in FIG. 7, in the MFP 10, the setting of the wireless LAN I / F 20 is set to WFD = OFF mode. The MFP 10 does not currently belong to the network. The portable terminal 50 is the same as in the second situation.

  In this situation, when NFC information is received from the portable terminal 50 using the NFC I / F 22, it is determined as NO in S4 as in the fourth situation. In S8, the MFP 10 determines that the WFD = OFF mode is set. In this case, in S9, the MFP 10 changes from the WFD = OFF mode to the WFD = ON mode. Next, in S15, the MFP 10 sets the MFP 10 to the spontaneous G / O mode.

  Hereinafter, the printing process is the same as in the fourth situation. In this configuration, the same effect as in the fourth situation can be achieved. When the printing process ends, the MFP 10 determines that the external device does not currently belong to the newly constructed WFD network (NO in S23), and changes the WFD = ON mode to the WFD = OFF mode. According to this configuration, after the print data is communicated, the WFD = ON mode can be appropriately changed to the WFD = OFF mode when no external device belongs to the WFD network.

  In the present embodiment, the MFP 10 executes processing according to whether or not the MFP 10 currently belongs to the same network as the portable terminal 50, that is, whether or not the MFP 10 can communicate with the portable terminal 50. Thus, wireless communication between the portable terminal 50 and the target data can be appropriately executed at a relatively high communication speed using the wireless LAN I / F 20. Further, the MFP 10 can execute communication of target data via the WFD network without using the mobile terminal 50 and an access point different from the MFP 10 and the mobile terminal 50.

  Further, when the MFP 10 is not communicable with the portable terminal 50 and the MFP 10 currently belongs to the WFD network, the MFP 10 and the portable terminal 50 can communicate with the portable terminal 50 via the WFD network to which the MFP 10 currently belongs. Communication can be performed appropriately. Further, when the MFP 10 does not currently belong to the WFD network, the MFP 10 can appropriately execute communication of target data with the portable terminal 50 via the newly constructed WFD network.

(Correspondence)
The MFP 10 is an example of a “communication device”, the NFC I / F 22 is an example of a “first type interface”, and the wireless LAN I / F 20 is an example of a “second type interface”. Note that, from the above description, the NFC I / F 22 (that is, the “first type interface”) performs the communication using the wireless LAN I / F 20 (that is, the “second type interface”). It can be said that the interface is used for communication performed between the communication device “) and the portable terminal 50.

  AP6 is an example of an “access point”. That is, the “access point” is a device that relays communication between a pair of devices belonging to the normal Wi-Fi network in the network to which the access point belongs, that is, the normal Wi-Fi network.

  NFC information is an example of “specific information”. The G / O state is an example of a “master station state”, and the client state is an example of a “slave station state”. When YES is determined in S4 of FIG. 2, the WFD network to which the MFP 10 belongs is an example of “first target network”, and the WFD network constructed by the processing of S15 to S18 of FIG. It is an example of a “second target network”.

  The case of YES in S4 of FIG. 2 is an example of “first case”, and the case of NO in S4 of FIG. 2 is an example of “second case”.

(Second embodiment)
Differences from the first embodiment will be described. In the present embodiment, the mobile terminal 50 includes NFC information further including a password, an authentication method, and an encryption method as wireless settings stored in the work area 58 when the mobile terminal 50 currently belongs to the network. Is transmitted to the MFP 10.

  In this embodiment, the communication process of FIG. 8 is executed instead of the communication process of FIG. S2 to S24 in FIG. 8 are the same as the processes in S2 to S24 in FIG. If NO in S4 (that is, if the MFP 10 does not currently belong to the network), in S82, the determination unit 42 includes the wireless setting in the NFC information received from the portable terminal 52 via the NFC interface 22. Judge whether or not. If it is determined that the wireless setting is included (YES in S82), the setting change unnecessary information is transmitted to the portable terminal 50 using the NFC I / F 22 in S83. If NO in S4 (that is, if MFP 10 does not currently belong to the network), setting change unnecessary information including the MAC address of MFP 10 is transmitted to portable terminal 50 in S83. On the other hand, if YES in S4 and NO in S6 (that is, MFP 10 currently belongs to the network, but MFP 10 and portable terminal 50 do not currently belong to the same network), in S83, MFP 10 The setting change unnecessary information including the IP address is transmitted to the portable terminal 50. Next, in S84, the communication execution unit 44 belongs to the network to which the portable terminal 50 belongs using the wireless setting included in the NFC information, and proceeds to S20.

  On the other hand, when it is determined that the wireless setting is not included in the NFC information (NO in S82), the process proceeds to S8.

(Effect of this embodiment)
The MFP 10 of the second embodiment can achieve the same effects as the MFP 10 of the first embodiment in the first to fifth situations. With reference to FIG. 9, the effect of the present embodiment in the sixth situation will be described. FIG. 9 shows a process corresponding to the communication process of FIG.

(Sixth situation)
In the sixth situation illustrated in FIG. 9, the MFP 10 is not currently in the network. On the other hand, the portable terminal 50 currently belongs to the normal Wi-Fi network to which the AP 6 belongs.

  In this situation, when NFC information is received from the portable terminal 50 via the NFC I / F 22, the MFP 10 determines that the MFP 10 currently belongs to the network (YES in S4). Next, in S82 of FIG. 8, the MFP 10 determines that the wireless setting for belonging to the network to which the portable terminal 50 currently belongs is included in the NFC information (YES in S82).

  Next, in S <b> 83, the MFP 10 transmits setting change unnecessary information to the portable terminal 50 using the NFC I / F 22. If NO in S4 (that is, if the MFP 10 does not currently belong to the network), the MFP 10 transmits setting change unnecessary information including the MAC address of the MFP 10 to the portable terminal 50. Also, if the MFP 10 is NO in S6 (that is, the MFP 10 currently belongs to the network, but the MFP 10 and the portable terminal 50 do not belong to the same network), the setting change unnecessary information including the IP address of the MFP 10 is displayed. It transmits to the portable terminal 50.

  The MFP 10 establishes a normal Wi-Fi connection with the AP 6 using the wireless settings included in the NFC information (S84). If the setting change unnecessary information includes the IP address of the MFP 10, the portable terminal 50 designates the IP address as a transmission destination and transmits the print data to the MFP 10 via the AP 6 (S 20). In addition, when the MAC address of the MFP 10 is included in the setting change unnecessary information, the portable terminal 50 specifies the IP address of the MFP 10 according to RARP (abbreviation of Reverse Address Resolution Protocol), and specifies the specified IP address as the transmission destination. Then, the print data is transmitted to the MFP 10 via the AP 6 (S20).

  According to this configuration, when the MFP 10 and the portable terminal 50 do not belong to the same network, the MFP 10 appropriately communicates print data with the portable terminal 50 via the network to which the portable terminal 50 currently belongs. Can run into.

(Correspondence)
The network to which the portable terminal 50 belongs is an example of a “second target network”. The case of YES in S4 of FIG. 8 is an example of “first case”, the case of NO in S4 of FIG. 8 is an example of “second case”, and NO in S4 of FIG. And the case where S82 is YES is an example of a “specific case”.

(Third embodiment)
Differences from the first embodiment will be described. In the present embodiment, the communication process of FIG. 10 is executed instead of the communication process of FIG. S2 to S12 and S15 to S24 in FIG. 10 are the same as the processes of S2 to S12 and S15 to S24 in FIG. If NO in S8, that is, if the MFP 10 is not set to the WFD = ON mode, in S76, the determination unit 42 determines whether or not the MFP 10 currently belongs to the normal Wi-Fi network. When the information indicating that it currently belongs to the normal Wi-Fi network is stored in the work area 38, the determination unit 42 determines that the MFP 10 currently belongs to the normal Wi-Fi network (YES in S76). The process proceeds to S80. On the other hand, when the information indicating that it belongs to the normal Wi-Fi network is not stored in the work area 38, the determination unit 42 determines that the MFP 10 does not currently belong to the normal Wi-Fi network (NO in S76). Determination is made and the process proceeds to S9.

  If YES in S12, that is, if the MFP 10 currently belongs to the WFD network and is operating in the G / O state in the WFD network, the process proceeds to S13. In S16, the communication execution unit 44 transmits the wireless setting of the MFP 10 stored in the work area 38 to the portable terminal 50 via the NFC I / F 22, and proceeds to S18. The wireless setting of the MFP 10 transmitted in S16 includes a password.

  If NO is determined in S12, that is, if the MFP 10 is operating in the device state, the determining unit 42 executes the process of S78. The process of S78 is the same as the process of S76. If NO in S78, the process proceeds to S15, and if YES in S78, the process proceeds to S80.

  In S80, the communication execution unit 44 performs wireless settings other than the password among the wireless settings for belonging to the normal Wi-Fi network stored in the work area 38, that is, the wireless settings of the AP (for example, AP6), as NFC. The data is transmitted to the portable terminal 50 via the interface 22, and the process proceeds to S20. When the wireless setting of the AP is received, the portable terminal 50 causes the user to specify a password. When the password is designated by the user, the portable terminal 50 establishes a connection with the AP using the wireless setting received from the MFP 10 and the password designated by the user. Thereby, the portable terminal 50 can wirelessly communicate with the MFP 10 via the AP. Note that when the connection between the portable terminal 50 and the AP is not established, the MFP 10 cannot execute wireless communication with the portable terminal 50. In this case, the control unit 30 returns to S2 without executing the processes of S20 to S24.

(Effect of this embodiment)
The MFP 10 of the third embodiment can achieve the same effects as the MFP 10 of the first embodiment in the first to fifth situations. With reference to FIG. 11, the effect of the present embodiment in the seventh situation will be described. FIG. 11 shows a process corresponding to the communication process of FIG.

(Seventh situation)
In the seventh situation shown in FIG. 11, the MFP 10 currently belongs to the normal Wi-Fi network. The MFP 10 is connected to the AP 6 in a normal Wi-Fi network. The portable terminal 50 is the same as in the second situation.

  In this situation, when NFC information is received from the portable terminal 50 using the NFC I / F 22, in S4, the MFP 10 determines that the MFP 10 currently belongs to the network (that is, a normal Wi-Fi network). (YES in S4). Next, in S6, the MFP 10 determines that the portable terminal 50 does not currently belong to the normal Wi-Fi network to which the MFP 10 currently belongs (NO in S6). In S76, the MFP 10 determines that it currently belongs to the normal Wi-Fi network (YES in S76). In this case, in S <b> 80, the MFP 10 transmits to the portable terminal 50 the wireless setting that does not include the password among the wireless settings of the AP 6 stored in the work area 38 and the IP address of the MFP 10. According to this configuration, it is not necessary to provide a password to the portable terminal 50 and the user. As a result, when the mobile terminal 50 and the user do not know the password for belonging to the normal Wi-Fi network where the AP 6 is used, the mobile terminal 50 can be prevented from belonging to the normal Wi-Fi network. it can.

  When receiving the wireless setting, the portable terminal 50 receives the wireless setting and causes the user to specify a password, as in the tenth situation. Next, when a password is designated by the user, the portable terminal 50 establishes a normal Wi-Fi connection with the AP 6. Thereby, the portable terminal 50 can belong to the normal Wi-Fi network to which the MFP 10 currently belongs. The portable terminal 50 can transmit print data with the MFP 10 via the AP 6. When the portable terminal 50 belongs to the normal Wi-Fi network, the portable terminal 50 performs wireless communication via the AP 6 by using the wireless setting stored in the work area 58 and the IP address of the MFP 10 received in S80. The print data is transmitted to the MFP 10.

  Although not shown, even when the MFP 10 is currently operating as a device state (Yes in S8, NO in S10 and S12) and the MFP 10 belongs to the normal Wi-Fi network (YES in S78), The MFP 10 transmits to the portable terminal 50 wireless settings that do not include a password among the wireless settings of the AP stored in the work area 38.

  According to this configuration, when the MFP 10 does not belong to the same network as the portable terminal 50, the MFP 10 appropriately communicates print data with the portable terminal 50 via the normal Wi-Fi network to which the MFP 10 currently belongs. Can be executed.

(Correspondence)
When it is determined YES in S4 of FIG. 10, the non-WFD network to which the MFP 10 belongs is an example of the “first target network”. The case of YES in S4 of FIG. 10 is an example of “first case”, and the case of NO in S4 of FIG. 10 is an example of “second case”.

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

(Modification)
(1) In the first to third embodiments, when the MFP 10 receives the NFC information (YES in S2), it determines whether it currently belongs to the network (S4) and determines that it belongs to the network. In this case (YES in S4), it is determined whether the MFP 10 and the portable terminal 50 currently belong to the same network (S6). However, the process of S6 may be omitted. That is, in the first and third embodiments, upon receiving NFC information (YES in S2), the MFP 10 determines whether it currently belongs to the network (S4), and if it is determined that it currently belongs to the network. (YES in S4), the process may proceed to S8 and subsequent steps. In the second embodiment, when it is determined that the MFP 10 currently belongs to the network (YES in S4), the process may proceed to S82 and subsequent steps.

(2) The “communication device” is not limited to a multi-function device, and is another device (for example, a printer, a FAX device, a copier, a scanner, etc.) having a first type interface and a second type interface. Also good.

(3) The MFP 10 may store an AP program for functioning as an access point. When starting the AP program, the control unit 30 may store a predetermined wireless setting in the work area 38. 2, the determination unit 42 may determine that the MFP 10 is currently participating in a network (non-WFD network) when the AP program is activated. In this modification, the normal Wi-Fi network that is constructed in a state where the MFP 10 functions as an access point is an example of a “first target network”.

(4) Also, for example, in S15 of FIG. 2, the communication execution unit 44 may activate the AP program instead of setting the MFP 10 to the spontaneous G / O mode. Next, the communication execution unit 44 may transmit the wireless setting stored in the work area 38 to the portable terminal 50. Then, the communication execution unit 44 and the portable terminal 50 may establish a connection using wireless settings stored in advance in the work area 38. In this case, the MFP 10 may establish a normal Wi-Fi connection with the portable terminal 50, and the MFP 10 may construct a normal Wi-Fi network. In the present modification, a normal Wi-Fi network that is constructed in a state where the MFP 10 functions as an access point is an example of a “second target network”.

(5) The combination of the “first type interface” and the “second type interface” is not limited to the combination of the NFC I / F and the wireless LAN I / F. For example, when the wireless LAN I / F is adopted as the “second type interface”, the “first type interface” may be an interface for executing infrared communication, or Bluetooth (registered trademark). It may be an interface for executing “Transfer Jet” or an interface for executing “Transfer Jet”. In addition, when NFC I / F is adopted as the “first type interface”, the “second type interface” may be an interface for executing wired communication, or Bluetooth (registered trademark) may be used. It may be an interface for execution. Generally speaking, it is only necessary that the communication speed of communication through the second type interface is higher than the communication speed of communication through the first type interface.

(6) “First type interface” and “second type interface” may be physically two interfaces (that is, two separate chips) as in the above embodiment. Alternatively, it may be physically one interface (that is, two types of communication are realized by one chip).

(7) In each of the above embodiments, there is physically one interface for executing wireless communication in accordance with the WFD scheme and an interface for executing wireless communication in accordance with normal Wi-Fi. The interface (wireless LAN I / F 20) may be physically a plurality of interfaces (that is, two separate IC chips). In the present modification, the plurality of interfaces are an example of “second type interface”.

(8) In each of the embodiments described above, in S15, the communication execution unit 44 sets the MFP 10 to the spontaneous G / O mode. However, when the portable terminal 50 can execute wireless communication according to the WFD, the communication execution unit 44 transmits WFD connection start information indicating that the WFD connection is started via the NFC interface 22 to the portable terminal 50. 50 may be transmitted. As a method for executing WFD wireless connection, a WPS (Wi-Fi Protected Setup) wireless connection method may be used. The WPS wireless connection method includes a PBC (abbreviation of push button configuration) method and a PIN (abbreviation of personal identification number) code method. In the present modification, the PBC code method will be described, but the technique of the present modification can also be applied to the PIN code method. The WFD connection start information may include information indicating that the PBC code method is used as a method for executing the WFD wireless connection. The WFD connection start information may further include a device ID (for example, a MAC address, a serial number, etc.) of the MFP 10.

  When the mobile terminal 50 receives the WFD connection start information, the mobile terminal 50 may determine whether or not the wireless LAN I / F setting of the mobile terminal 50 is a setting capable of performing wireless communication according to the WFD scheme. . When the wireless LAN I / F setting is a setting capable of performing wireless communication according to the WFD method, the portable terminal 50 maintains the wireless LAN I / F setting, and the wireless LAN I / F setting is changed to the WFD method. If it is not a setting capable of performing wireless communication according to the above, the setting of the wireless LAN I / F may be changed to a setting capable of performing wireless communication according to the WFD method.

  Next, the communication execution unit 44 may search for the mobile terminal 50. Specifically, the communication execution unit 44 may sequentially execute a scan process, a listen process, and a search process. The scan process is a process for searching for devices in the G / O state existing around the MFP 10. Specifically, the communication execution unit 44 may sequentially transmit the probe request signal wirelessly using the 13 channels 1ch to 13ch sequentially in the scan process. Note that the Probe Request signal may include P2P (Peer 2 Peer) information indicating that the MFP 10 can execute the WFD function.

  For example, when there is a WFD compatible device in the G / O state around the MFP 10 (hereinafter referred to as “specific G / O device”), the specific G / O device is one of 1ch to 13ch. The use of the number of channels may be determined in advance. Therefore, the specific G / O device may wirelessly receive the Probe Request signal from the MFP 10. In this case, the specific G / O device may wirelessly transmit a Probe Response signal to the MFP 10. This Probe Response signal includes P2P information indicating that a specific G / O device can execute the WFD function, and information indicating that the specific G / O device is in a G / O state. Also good. As a result, the communication execution unit 44 can find a specific G / O device. The Probe Response signal further includes a device name of a specific G / O device, information indicating the model of the specific G / O device (for example, a mobile terminal, a PC, etc.), and a specific G / O device. May be included. As a result, the communication execution unit 44 can acquire information regarding a specific G / O device.

  When the device ID (for example, MAC address, serial number, etc.) of a specific G / O device included in the Probe Response signal matches the device ID of the mobile terminal 50 included in the NFC information, the communication execution unit 44 It can be specified that the specific G / O device is the portable terminal 50. That is, when the mobile terminal 50 currently belongs to the WFD network and is operating in the G / O state in the WFD network, the communication execution unit 44 may discover the mobile terminal 50 through the Scan process. it can.

  For example, when there is a WFD compatible device in a device state (hereinafter referred to as “specific device device”) around the MFP 10, the specific device device is one of 1ch, 6ch, and 11ch. The use of the channel may be determined in advance. Accordingly, the specific device device may also receive the Probe Request signal from the MFP 10 wirelessly. In this case, the specific device device may wirelessly transmit a Probe Response signal to the MFP 10. However, the Probe Response signal includes information indicating that the device is in the device state, and may not include information indicating the G / O state. In addition, the device in the client state may receive the Probe Request signal from the MFP 10 wirelessly, or may not transmit the Probe Response signal to the MFP 10 wirelessly. The communication execution unit 44 can find the mobile terminal 50 in the scan process regardless of whether the mobile terminal 50 is in the G / O state or the device state.

  The Listen process is a process for responding to the Probe Request signal. The specific device device can wirelessly transmit a Probe Request signal in Search processing described later. That is, when the current state of the mobile terminal 50 is the device state, the mobile terminal 50 may periodically transmit a Probe Request signal wirelessly. This Probe Request signal may include a device ID (for example, a MAC address, a serial number, etc.) of the mobile terminal 50.

  When the device ID of the specific device device included in the Probe Request signal matches the device ID of the mobile terminal 50 included in the NFC information, the communication execution unit 44 is the mobile terminal 50. Can be specified. That is, when the mobile terminal 50 is operating in the device state, the communication execution unit 44 can find the mobile terminal 50 through the Listen process. When the communication execution unit 44 receives the Probe Request signal from the portable terminal 50, the communication execution unit 44 may wirelessly transmit the Probe Response signal.

  In the Search process, the communication execution unit 44 may sequentially transmit the Probe Request signal wirelessly by sequentially using the three channels of 1ch, 6ch, and 11ch. As a result, the communication execution unit 44 may wirelessly receive a Probe Response signal from a specific device device. The Probe Response signal includes P2P information indicating that a specific device device can execute the WFD function, information indicating that the specific device device is in a device state, and a device ID (for example, MAC) of the specific device device. Address, serial number, etc.). When the current state of the portable terminal 50 is the device state, the portable terminal 50 may wirelessly transmit a Probe Response signal as a response to the Probe Request signal transmitted from the MFP 10.

  When the device ID of the specific device included in the Probe Response signal matches the device ID of the mobile terminal 50 included in the NFC information, the communication execution unit 44 is the mobile terminal 50. Can be specified. That is, when the mobile terminal 50 currently belongs to the WFD network and operates as a device state in the WFD network, the communication execution unit 44 can find the mobile terminal 50 by the Search process.

  When the mobile terminal 50 is found, the MFP 10 uses the wireless LAN I / F 20 to execute G / O negotiation with the mobile terminal 50 to set one of the devices of the MFP 10 and the mobile terminal 50 to G. It may be determined to operate as the / O state and the other device may be determined to operate as the client state.

  Next, the communication execution unit 44 may establish a connection between the MFP 10 and the portable terminal 50 according to WPS. Specifically, the communication execution unit 44 performs communication when the current state of the MFP 10 is the G / O state and the current state of the portable terminal 50 is the client state (YES in S22). The execution unit 44 may generate wireless settings (SSID, authentication method, encryption method, password, etc.) necessary for establishing a wireless connection and wirelessly transmit them to the portable terminal 50. Note that the authentication method and the encryption method may be determined in advance. The communication execution unit 44 may generate a password when generating the wireless setting. The SSID may be generated by the communication execution unit 44 or may be determined in advance. By transmitting the wireless setting to the portable terminal 50, the MFP 10 and the portable terminal 50 can use the same wireless setting. In other words, the MFP 10 and the mobile terminal 50 may perform wireless communication of Authentication Request, Authentication Response, Association Request, Association Response, and 4-way handshake using wireless settings. In this process, the MFP 10 and the portable terminal 50 may execute various authentication processes such as SSID authentication, authentication method and encryption method authentication, password authentication, and the like. When all the authentications are successful, a wireless connection may be established between the MFP 10 and the portable terminal 50. Thereby, the MFP 10 and the portable terminal 50 may belong to the same WFD network.

  On the other hand, when the current state of the MFP 10 is the client state and the current state of the target device is the G / O state, the communication execution unit 44 may execute the WPS negotiation for the client state. Good. More specifically, the portable terminal 50 may generate wireless settings (SSID, authentication method, encryption method, password, etc.) necessary for establishing a wireless connection and wirelessly transmit them to the MFP 10. As a result, the communication execution unit 44 may receive wireless settings from the portable terminal 50 wirelessly. Subsequent processing (communication processing such as Authentication Request) is the same as the WPS negotiation for the G / O state. Thereby, the MFP 10 and the portable terminal 50 may belong to the same WFD network. As a result, the MFP 10 in the client state can execute wireless communication of target data (print data and the like) with the portable terminal 50 in the G / O state. In this modification, G / O negotiation and WPS negotiation are examples of “specific processing”.

(9) In each of the embodiments described above, the units 40 to 46 are realized by software, but at least one of the units 40 to 46 may be realized by hardware such as a logic circuit.

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

2: communication system, 6: AP, 8: PC, 10: MFP, 20: wireless LAN interface, 22: NFC interface, 30: control unit, 50: portable terminal

The technology disclosed in this specification includes a first type interface for performing communication with a first device, and a second type interface for performing communication with the first device, A computer program for a second apparatus, comprising: the second type interface, wherein a communication speed of communication using the second type interface is higher than a communication speed of communication using the first type interface It is. The computer program performs the following processing on a computer mounted on the second device, that is, a target network to which the second device currently belongs, and performs wireless communication using the second type interface. Determination processing for determining whether or not the first device currently belongs to the target network to be executed, and wireless communication using the first type interface are executed with the first device; And when it is determined that the first device currently belongs to the target network, a first communication execution process for performing wireless communication of target data via the target network with the first device; , Wireless communication using the first type interface is executed with the first device, and the first device currently belongs to the target network. The wireless setting received from the first device in the wireless communication using the first type interface, the specific setting using the wireless setting for belonging to a specific network A second communication execution process that belongs to a network and executes wireless communication of the target data via the specific network with the first device, wherein the specific network includes the second type interface; The second communication execution process, which is a network for executing the used wireless communication, may be executed.
Another technique disclosed by this specification is the first device. The first device is a first type interface for performing wireless communication with the second device, and a second type interface for performing wireless communication with the second device, wherein the second device The communication speed of the wireless communication using the kind of interface is faster than the communication speed of the communication using the kind of interface of the first type. The target when executed with the second device and the first device is determined by the second device to currently belong to a target network to which the second device currently belongs A first communication execution unit that executes wireless communication of target data via the network with the second device, and wireless communication using the first type of interface performs the second device. And when the second device determines that the first device does not currently belong to the target network, the second device uses the first type of interface for wireless communication. In the wireless setting transmitted from the first device to the second device, the wireless network is used for belonging to a specific network, and after belonging to the specific network, A second communication execution unit for performing wireless communication of the target data via the second device, wherein the specific network is a network for performing wireless communication using the second type interface And the second communication execution unit.
Another technique disclosed in the present specification is a communication device. The communication apparatus includes a first type interface, a second type interface, and a control unit. The first type interface is an interface for performing wireless communication with the mobile terminal. The second type interface is an interface for performing wireless communication with the mobile terminal. The communication speed of wireless communication using the second type interface is faster than the communication speed of communication using the first type interface. The control unit includes a determination unit and a communication execution unit. The determination unit determines whether or not the communication device currently belongs to a target network for executing wireless communication using the second type interface. In the first case where the communication device is determined to currently belong to the first target network, the communication execution unit sets the wireless setting for causing the portable terminal to belong to the first target network. After executing the transmission process to transmit to the portable terminal using the second, the second type interface is used to perform wireless communication of the target data via the portable terminal and the first target network. The communication execution unit identifies the communication device and the mobile terminal so that both the communication device and the mobile terminal belong to the second target network when the communication device is determined not to currently belong to the target network. After executing the process, wireless communication of the target data via the portable terminal and the second target network is executed using the second type interface.

Claims (10)

A communication device,
A first type interface for performing wireless communication with the mobile terminal;
A second type interface for executing wireless communication with the portable terminal, wherein a communication speed of wireless communication using the second type interface is higher than a communication speed of communication using the first type interface. The second type interface,
A control unit,
The controller is
A determination unit for determining whether the communication device currently belongs to a target network for performing wireless communication using the second type interface;
In the first case where it is determined that the communication device currently belongs to the first target network, the wireless setting for causing the portable terminal to belong to the first target network is set to the first type interface. After performing transmission processing to be transmitted to the portable terminal using the second type interface, wireless communication of the target data via the portable terminal and the first target network is performed,
In a second case where it is determined that the communication device does not currently belong to the target network, a specific process is performed so that both the communication device and the mobile terminal belong to the second target network. A communication apparatus comprising: a communication execution unit that executes wireless communication of the target data via the second target network using the second type interface after execution. The second type interface is an interface for the communication device to execute specific wireless communication,
The specific wireless communication is wireless communication performed by the communication device and the mobile terminal without using an access point different from the communication device and the mobile terminal,
The communication apparatus according to claim 1, wherein the specifying process is a process for the communication apparatus and the mobile terminal to execute the specific wireless communication using the second type interface. The communication device includes a master station state that functions as a master station of a target wireless network, a slave station state that functions as a slave station of the wireless network, and a device state that is different from the master station state and the slave station state. Can selectively operate in any of a plurality of states including,
The communication device is capable of executing the specific wireless communication via the target wireless network by operating in one of the master station state and the slave station state in the target wireless network. Yes,
In the second case, the communication execution unit is the second target network for executing the specific wireless communication, and the second target to which the communication device and the portable terminal should belong The communication apparatus according to claim 2, wherein the specifying process for newly constructing a network is executed.   In the second case, the communication execution unit selectively determines whether the communication apparatus should operate in the master station state or the slave station state in the second target network. The communication apparatus according to claim 3, wherein the communication apparatus executes the specific process including a process of determining that the communication apparatus should operate as the master station state in the second target network without executing the process. . The controller is
A receiver that receives specific information from the mobile terminal using the first type interface;
In the second case, the communication execution unit is configured to specify that the communication device belongs to the second target network when the mobile terminal currently belongs to the second target network. The specific processing for causing the communication device to belong to the second target network is executed using the specific wireless setting included in the specific information. The communication device described. The communication device uses the second type interface to perform specific wireless communication that is performed by the communication device and the mobile terminal without using an access point different from the communication device and the mobile terminal. Is possible,
The communication execution unit
In the specific case, when the specific wireless setting is included in the specific information, the specific wireless setting is used to cause the communication device to belong to the second target network. Execute the specific process;
In the specific case, when the specific wireless setting is not included in the specific information, the communication device is the second target network for executing the specific wireless communication, and The communication apparatus according to claim 5, wherein the specifying process for newly constructing the second target network to which the communication apparatus and the portable terminal belong is executed. The communication apparatus includes a master station state that functions as a master station of a target wireless network, a slave station state that functions as a slave station of the target wireless network, a device state that is different from the master station state and the slave station state, Can selectively operate in any of a plurality of states including
The communication device operates in either the master station state or the slave station state in the target wireless network, and uses the second type interface to transmit the communication device via the wireless network. Specific wireless communication is possible,
The communication device can further perform other wireless communication via the access point between the communication device and the mobile terminal using the second type interface,
The communication execution unit
In the first case where the communication device currently belongs to the first target network for executing the other wireless communication (in addition, the wireless for the portable terminal to belong to the first target network) Executing the transmission process for transmitting the setting to the portable terminal via the first type interface;
The communication device currently belongs to the first target network for executing the specific communication, and the communication device is operating as the master station state in the first target network. In the first case, the transmission processing for transmitting the wireless setting for the portable terminal to belong to the first target network to the portable terminal via the first type interface is executed.
The communication device currently belongs to the first target network by executing the specific communication, and the communication device is operating as the slave station state in the first target network. The communication device according to claim 1, wherein the transmission process is not executed in the first case. The communication execution unit
In the first case, when the mobile terminal does not currently belong to the first target network, the transmission process is executed,
8. The communication device according to claim 1, wherein, in the first case, the transmission processing is not executed when the mobile terminal currently belongs to the first target network. 9. The control unit further includes:
A receiving unit for receiving specific information from the portable terminal using the first type interface;
The determination unit further determines whether the mobile terminal currently belongs to the first target network using the specific information,
The communication execution unit
In the first case, when it is determined that the mobile terminal does not currently belong to the first target network, the transmission process is executed,
The communication device according to claim 8, wherein in the first case, when it is determined that the mobile terminal currently belongs to the first target network, the transmission processing is not executed. The first type interface for executing communication with the portable terminal and the second type interface for executing communication with the portable terminal, wherein the communication speed of communication using the second type interface is: A computer program for a communication device comprising the second type interface, which is faster than the communication speed of communication using the first type interface,
In the computer mounted on the communication device, the following processing, that is,
A determination process for determining whether or not the communication device currently belongs to a target network for performing wireless communication using the second type interface;
In the first case where it is determined that the communication device currently belongs to the first target network, the wireless setting for causing the portable terminal to belong to the first target network is set to the first type interface. After performing transmission processing to be transmitted to the portable terminal using the second type interface, wireless communication of the target data via the portable terminal and the first target network is performed,
In a second case where it is determined that the communication device does not currently belong to the target network, the specific process is performed so that both the communication device and the mobile terminal belong to the second target network. A computer program that executes communication execution processing for performing wireless communication of the target data via the portable terminal and the second target network using the second type interface.

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