JP2019075833A - Communication device and mobile terminal - Google Patents

Abstract

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

Description

  The technology disclosed by the present specification relates to a communication device and a mobile terminal for performing communication of target data.

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

JP, 2010-245748, A

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

  One technique disclosed by the present specification is a communication device for performing communication of target data with a mobile terminal. The communication device is a first type interface for performing wireless communication with the portable terminal, and a second type interface for performing wireless communication with the portable terminal, and the wireless communication via the second type interface The second communication speed is higher than the communication speed of the wireless communication through the first type interface, and the second control unit is provided. The device-side control unit includes a specific data reception unit, a first information transmission unit, a formation unit, a second information transmission unit, and an apparatus-side communication execution unit. The specific data receiving unit receives specific data from the portable terminal via the first type of interface. The first information transmission unit performs wireless communication using the first wireless network when the specific information is received, and the first communication network belongs to the first wireless network. The first information to be executed is transmitted to the portable terminal via the first type of interface. The first wireless network is a wireless network for performing wireless communication via a second type of interface. The forming unit newly adds the third wireless network in the second case in which the communication apparatus does not belong to the first wireless network but belongs to the second wireless network when the specific data is received. To form. Each of the second wireless network and the third wireless network is a wireless network for performing wireless communication via the second type of interface. In the second case, the second information transmitting unit uses second information for the mobile terminal to execute wireless communication using the second wireless network, and the mobile terminal uses the third wireless network. And third information for performing wireless communication is transmitted to the portable terminal via the first type of interface. In the first case, the device-side communication execution unit executes communication of target data with the portable terminal using the first wireless network, and in the second case, the second wireless network or the third wireless Communication between the portable terminal and the target data is performed using the network.

  According to the above configuration, the communication device transmits the first information to the portable terminal in the first case belonging to the first wireless network. To this end, the communication device and the mobile terminal can appropriately execute communication of target data using the first wireless network. Further, in the second case where the communication apparatus does not belong to the first wireless network but belongs to the second wireless network, the communication apparatus newly forms a third wireless network, and the second information and the second information network And 3 information is sent to the portable terminal. To this end, the communication device and the mobile terminal can appropriately execute communication of target data using the second wireless network or the third wireless network. Even if the communication device and the portable terminal can not execute the communication of the target data using the second wireless network, the communication device and the portable terminal may be a third wireless network formed by the communication device. Communication of target data can be properly performed.

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

  According to the above configuration, in the third case where it is determined that the portable terminal belongs to the fifth wireless network in which the communication device operates as a slave station, the communication device transmits the fifth information and the sixth information. To the mobile terminal. To this end, the communication device and the mobile terminal can appropriately execute communication of target data using the fifth wireless network or the sixth wireless network. Even if the communication device and the portable terminal can not execute the communication of the target data by using the fifth wireless network, the communication device and the portable terminal operate the communication device as a master station. Communication of target data may be appropriately performed using a wireless network. Also, in the fourth case where it is determined that the portable terminal does not belong to the fifth wireless network in which the communication device operates as a slave station, the communication device transmits sixth information without transmitting the fifth information. To the mobile terminal. To this end, the communication device and the mobile terminal can appropriately execute communication of target data using the sixth wireless network. In addition, the security of the fifth wireless network can be suppressed from being reduced.

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

  According to the above configuration, when the specific information includes one piece of information, the portable terminal performs communication of the target data with the communication apparatus using one piece of wireless network. For this purpose, the portable terminal and the communication device can appropriately execute the communication of the target data using the above-described one wireless network. In addition, when the specific information includes a plurality of pieces of information, the portable terminal executes communication of the target data with the communication device by sequentially using each of the plurality of wireless networks. Even if the portable terminal and the communication device can not execute the communication of the target data using any one of the plurality of wireless networks, the plurality of portable terminals and the communication device may be Communication of the subject data may be suitably performed utilizing another of the wireless networks.

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

1 shows the configuration of a communication system. 5 shows a flowchart of communication processing of the MFP. 6 shows a flowchart of response transmission processing of the MFP. 3 shows a flowchart of application processing of a mobile terminal. A sequence diagram of case A is shown. FIG. 16 shows a sequence diagram of case B. FIG. 16 shows a sequence diagram of case C. FIG. 18 shows a sequence diagram of case D. The flowchart of the response transmission process of 2nd Example is shown.

(First embodiment)
(Configuration of communication system 2)
As shown in FIG. 1, the communication system 2 includes a plurality of access points (hereinafter referred to as "AP (abbreviated to AP)") 4a and 4b, and a personal computer (hereinafter referred to as "PC (Personal Computer) And 6), a multi-function device (hereinafter referred to as “MFP (abbreviated as“ Multi-Function Peripheral ”)”) 10, and a portable terminal 50.

(Type of wireless communication that can be executed by MFP 10)
The MFP 10 executes wireless communication according to NFC (abbreviation of Near Field Communication) method, wireless communication according to WFD (abbreviation of Wi-Fi Direct) method, and wireless communication according to a normal Wi-Fi method. It is possible. Hereinafter, wireless communication in accordance with each of the above methods will be referred to as “NFC communication”, “WFD communication”, and “normal Wi-Fi communication”, respectively.

(NFC communication)
The NFC method is a wireless communication method for so-called short distance wireless communication, and is, for example, a wireless communication method based on the international standard of ISO / IEC 21481 or 18092. The MFP 10 can execute NFC communication with the portable terminal 50.

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

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

  Hereinafter, devices that can execute WFD communication, such as the MFP 10 and the portable terminal 50, will be referred to as “WFD-compatible devices”. In the above WFD specifications, three states of Group Owner state (hereinafter referred to as "G / O state"), client state, and device state are defined as the states of a WFD compatible device. The WFD-enabled device is selectively operable in one of the three states described above.

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

  The G / O device can directly execute wireless communication of target data without passing through the relay device and the CL device registered in the management list. However, the G / O device can execute wireless communication of participation data for the unregistered device to participate in the WFD network with the unregistered device not registered in the management list. It is impossible to perform wireless communication. The participation data is data not including information of the network layer of the OSI reference model, and, for example, a probe request signal (hereinafter referred to as “PReq signal”), a probe response signal (hereinafter referred to as “PRes signal”), etc. Contains physical layer data. The G / O device can relay wireless communication of target data between a plurality of CL devices.

  WFD compatible devices that do not belong to the WFD network (that is, unregistered devices not registered in the management list of G / O devices) are devices in the device state. A device in the device state can execute wireless communication of the above participation data to belong to the WFD network with the G / O device, but execute wireless communication of the above target data with the G / O device or CL device It is impossible.

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

  In the following, although it is not selectively operable in one of the three states (ie, the G / O state, the client state, and the device state) defined in the above WFD standard, An apparatus capable of executing wireless communication (that is, normal Wi-Fi communication described later) via an AP is referred to as a "WFD non-compliant apparatus". The “non-WFD compatible device” is also referred to as a “legacy device”. The device in the G / O state can describe the identification information of the WFD non-compliant device in the management list. In this case, the WFD non-compliant device can participate in the WFD network as a CL device.

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

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

  A normal Wi-Fi network is a wireless network established in an environment where APs can be installed, such as an in-house LAN, a home LAN, etc. Generally speaking, it is a wireless network that should be formed regularly. . On the other hand, the WFD network is a wireless network established to execute temporary wireless communication between, for example, a pair of WFD compatible devices in order to not require an AP, generally speaking, It is a wireless network to be formed temporarily. Thus, in the present embodiment, it is assumed that the normal Wi-Fi network is a wireless network to be formed regularly and the WFD network is a wireless network to be formed temporarily. Hereinafter, the WFD network and the normal Wi-Fi network will be referred to as "WFD NW" and "normal Wi-Fi NW".

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

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

  The wireless LAN I / F 20 is an interface for executing WFD communication and normal Wi-Fi communication. The wireless LAN I / F 20 is physically one interface (ie, one IC chip). However, in the wireless LAN I / F 20, a MAC address used in WFD communication (hereinafter referred to as "MAC address for WFD") and a MAC address used in normal Wi-Fi communication (hereinafter referred to as "normal Wi-Fi MAC address “for MAC address” is assigned. Specifically, a Wi-Fi MAC address is usually assigned to the wireless LAN I / F 20 in advance. The control unit 30 generates a WFD MAC address different from the normal Wi-Fi MAC address using the normal Wi-Fi MAC address, and assigns the WFD MAC address to the wireless LAN I / F 20. Accordingly, the control unit 30 can simultaneously execute both the normal Wi-Fi communication using the normal Wi-Fi MAC address and the WFD communication using the WFD MAC address. That is, the MFP 10 can simultaneously belong to both the WFD NW and the normal Wi-Fi NW.

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

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

  The communication speed of wireless communication via the wireless LAN I / F 20 (for example, the maximum communication speed is 11 to 600 Mbps) is higher than the communication speed for wireless communication via the NFC I / F 22 (for example, the maximum communication speed is 100 to 424 Kbps) Too fast. Also, the frequency of the carrier wave in wireless communication via the wireless LAN I / F 20 (for example, 2.4 GHz band, 5.0 GHz band) is the frequency of the carrier wave in wireless communication via the NFC I / F 22 (for example, 13.56 MHz band) It is different from Also, for example, when the distance between the MFP 10 and the portable terminal 50 is approximately 10 cm or less, the control unit 30 can execute NFC communication with the portable terminal 50 via the NFC I / F 22. On the other hand, even when 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 maximum), the control unit 30 transmits the portable terminal via the wireless LAN I / F 20. The terminal 50 can execute WFD communication and normal Wi-Fi communication. That is, for the maximum distance at which the MFP 10 can execute wireless communication with the communication destination device (for example, the portable terminal 50) via the wireless LAN I / F 20, the MFP 10 performs wireless communication with the communication destination device via the NFC I / F 22 Greater than the maximum distance possible.

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

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

  The MFP 10 can form a state in which it belongs to the first WFDNW as a G / O device and belongs to the second WFDNW as a CL device. That is, the MFP 10 can simultaneously belong to two WFD NWs as devices in different states (ie, G / O state, client state). However, the MFP 10 can not simultaneously belong to two WFD NWs as devices in the same state. That is, the MFP 10 can not belong to another WFD NW as a G / O device in a state where the MFP 10 belongs to one WFD NW as a G / O device. Further, in a state where the MFP 10 belongs to one WFDNW as a CL device, the MFP 10 can not belong to another WFDNW as a CL device. When the MFP 10 simultaneously belongs to the first and second WFD NWs, the memory 34 stores the first WFD belonging information corresponding to the first WFD NW and the second WFD corresponding to the second WFD NW. Store both belonging information.

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

  When forming the WFD NW, the G / O device usually prepares the WFD wireless setting and supplies the WFD wireless setting to the CL device. For example, when forming a WFD NW in which the MFP 10 operates as a G / O device, the control unit 30 of the MFP 10 prepares a WFD wireless setting. Specifically, the control unit 30 prepares predetermined authentication method information and encryption method information. The control unit 30 prepares a password by preparing a predetermined password or by newly generating a password. The control unit 30 prepares the SSID by preparing a predetermined SSID or newly generating an SSID. The control unit 30 also prepares a WFD MAC address determined in advance as a BSSID.

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

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

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

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

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

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

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

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

  Unlike the MFP 10, the portable terminal 50 can not simultaneously belong to the WFD NW and the normal Wi-Fi NW. In addition, the portable terminal 50 can not simultaneously belong to two WFD NWs. When the portable terminal 50 belongs to the WFD NW or the normal Wi-Fi NW, the memory 34 stores the WFD affiliation information or the normal Wi-Fi affiliation information similarly to the MFP 10.

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

  The differences between WFD's G / O devices and regular APs (ie each AP 4a, 4b) are as follows. The WFD G / O device may operate in a state different from the G / O state (i.e., the client state) when it leaves the WFD NW to which the device belongs and newly belongs to another WFD NW. On the other hand, the normal AP executes the relay function regardless of which normal Wi-Fi NW the AP concerned forms. That is, a normal AP can execute only the same operation as the WFD G / O device, and can not execute the same operation as the WFD CL device.

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

(Communication process executed by MFP 10)
Next, with reference to FIG. 2, the contents of communication processing executed by the MFP 10 will be described. While the MFP 10 is powered on, the NFC I / F 22 of the MFP 10 transmits a detection radio wave for detecting a device capable of executing NFC communication (that is, the portable terminal 50). The user of the portable terminal 50 brings the portable terminal 50 close to the MFP 10 after performing the operation of selecting the print function or the scan function. As a result, the distance between the portable terminal 50 and the MFP 10 becomes smaller than the distance (for example, 10 cm) at which radio waves reach each other. In this case, the NFC I / F 62 of the portable terminal 50 receives the detected radio wave from the MFP 10 and transmits a response radio wave to the MFP 10. As a result, an NFC communication session is established between the MFP 10 and the portable terminal 50. The portable terminal 50 transmits request data to the MFP 10 using an NFC communication session.

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

(Response transmission process; Fig. 3)
At S12, the control unit 30 executes a response transmission process. Hereinafter, the WFD NW in which the MFP 10 operates as a G / O device will be referred to as “WFD NW (MFP = G / O)”. Further, the WFD NW in which the MFP 10 operates as a CL device is described as “WFD NW (MFP = CL)”.

  As shown in FIG. 3, in S <b> 30, the control unit 30 determines whether the MFP 10 belongs to the WFD NW (MFP = G / O). Specifically, when WFD belonging information is not stored in memory 34, control unit 30 determines NO in S30 (that is, MFP 10 does not belong to WFD NW (MFP = G / O)). Then, proceed to S40. Further, when two pieces of WFD belonging information are stored in the memory 34, the control unit 30 indicates that the MFP 10 belongs to the first WFD NW (MFP = G / O) and the MFP 10 is the second. If it belongs to WFDNW (MFP = CL), YES is determined in S30 (that is, the MFP 10 belongs to WFDNW (MFP = G / O)), and the process proceeds to S32. Further, when one piece of WFD belonging information is stored in the memory 34, the control unit 30 determines whether the state value included in the WFD belonging information is a value indicating a G / O state or not. Check. If the state value is a value indicating a G / O state, the control unit 30 determines YES in S30 and proceeds to S32, and if the state value is a value indicating a client state, NO in S30. Then, the process proceeds to S40.

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

  In S34, the second determination unit 46 determines whether the MFP 10 belongs to the normal Wi-Fi NW. Specifically, when the normal Wi-Fi affiliation information is stored in the memory 34, the second determination unit 46 determines YES in S34 (that is, the MFP 10 belongs to the normal Wi-Fi NW). Then, the process proceeds to S36. When the normal Wi-Fi affiliation information is not stored in the memory 34, the second determination unit 46 determines NO in S34 (that is, the MFP 10 does not belong to the normal Wi-Fi NW), and the second determination unit 46 determines S60. Go to

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

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

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

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

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

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

  In S44, when the normal Wi-Fi affiliation information is stored in the memory 34, the first determination unit 45 determines whether the MFP 10 and the portable terminal 50 belong to the same normal Wi-Fi NW. Execute a first determination process to The first determination process is the same as S36. If the first determination unit 45 determines that the MFP 10 and the portable terminal 50 belong to the same normal Wi-Fi NW in the first determination process, the first determination unit 45 determines YES in S44, and proceeds to S46.

  In S44, when the WFD for CL information is stored in the memory 34, the first determination unit 45 further determines whether the MFP 10 and the portable terminal 50 belong to the same WFD NW (MFP = CL). Execute a second determination process to determine whether the Specifically, the first determination unit 45 determines whether the SSID included in the CL WFD affiliation information in the memory 34 matches the SSID included in the request data. When the two SSIDs coincide with each other, the first determination unit 45 determines that the MFP 10 and the portable terminal 50 belong to the same WFDNW (MFP = CL). If the first determination unit 45 determines that the MFP 10 and the portable terminal 50 belong to the same WFDNW (MFP = CL) in the second determination process, the process proceeds to S46 after determining YES in S44. .

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

  In S46, the forming unit 44 shifts the MFP 10 to the autonomous G / O mode. As described above, when a WFD network is to be newly formed, G / O negotiation is usually performed to determine G / O devices and CL devices. On the other hand, in the autonomous G / O mode, it is determined that the MFP 10 is a G / O device without performing G / O negotiation. At the stage of S46, the MFP 10 is a G / O device, but there is no CL device. That is, by executing S46, the forming unit 44 forms a WFD NW (MFP = G / O) to which only the G / O device (ie, the MFP 10) belongs.

  The autonomous G / O mode is a mode that allows the MFP 10 to operate in the G / O state. For example, when the MFP 10 enters the G / O state by G / O negotiation to form a WFD network, the MFP 10 transitions from the G / O state to the device state when CL devices are not present from the WFD network (ie, , WFD network disappears). On the other hand, for example, when the MFP 10 is in the G / O state in the autonomous G / O mode to form a WFD network, the MFP 10 maintains the G / O state even if there is no CL device (ie, Maintain the WFD network).

  When S46 is started, the MFP 10 may belong to the WFD NW (MFP = CL). In this case, in S46, the forming unit 44 newly forms a WFDNW (MFP = G / O) without leaving the MFP 10 from the WFDNW (MFP = CL). That is, a state in which the MFP 10 simultaneously belongs to two WFD NWs is formed. This point is the same as in S48 described later.

  In S46, the forming unit 44 further prepares WFD wireless settings (that is, authentication method information, encryption method information, SSID, BSSID, and password) to be used in the WFD NW (MFP = G / O). The methodology for preparing the WFD radio configuration is as described above. In S46, the forming unit 44 further causes the memory 34 to store WFD belonging information for G / O including the state value indicating the G / O state and the prepared WFD wireless setting. When S46 ends, the process proceeds to S70.

  In S70, the second information transmission unit 42 first generates response data. Specifically, the second information transmission unit 42 is configured to use both of the MFP 10 and the portable terminal 50 from among one or more belonging information (that is, normal Wi-Fi belonging information, WFD belonging information) in the memory 34. Affiliation information (hereinafter, referred to as “specific affiliation information”) corresponding to the wireless network to which C. belongs (that is, the wireless network determined as YES in S44) is specified. The specific affiliation information is usually Wi-Fi affiliation information or WFD affiliation information for CL. Then, the second information transmitting unit 42 sets the wireless setting (that is, the normal Wi-Fi wireless setting or the WFD wireless setting of WFDNW (MFP = CL)) included in the specific affiliation information and the first priority. The first correspondence information is generated in which priority information indicating. Next, the second information transmitting unit 42 sets the WFD wireless setting included in the WFD belonging information for G / O in the memory 34 (that is, the WFD wireless setting prepared in S46) and a priority indicating the second priority. The second correspondence information in which the information is associated is generated. The second information transmission unit 42 generates response data including the first correspondence information and the second correspondence information. In S70, the second information transmission unit 42 further transmits the generated response data to the portable terminal 50 via the NFC I / F 22.

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

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

  Note that, as described above, even if the MFP 10 belongs to the normal Wi-Fi NW, if the portable terminal 50 does not belong to the normal Wi-Fi NW (NO in S36 or NO in S44), the MFP 10 normally The normal Wi-Fi wireless setting corresponding to the Wi-Fi NW is not transmitted to the portable terminal 50 (S60). For this reason, it is possible to suppress the decrease in security of the normal Wi-Fi NW to which the MFP 10 belongs. Similarly, even if MFP 10 belongs to WFDNW (MFP = CL), if portable terminal 50 does not belong to WFDNW (MFP = CL) (NO in S44), MFP 10 selects WFDNW (MFP = CL). Is not transmitted to the portable terminal 50 (S60). Therefore, the security of the WFD NW (MFP = CL) to which the MFP 10 belongs can be suppressed from being degraded.

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

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

  In S16, the control unit 30 transmits a connection response signal (for example, an Authentication Response signal, an Association Response signal), which is a response signal to the connection signal, to the portable terminal 50 via the wireless LAN I / F 20. As a result, the portable terminal 50 can participate in the WFD NW (MFP = G / O). That is, the MFP 10 and the portable terminal 50 belong to the same WFDNW (MFP = G / O). When S16 ends, the process proceeds to S18.

  Further, although the details will be described later, the portable terminal 50 transmits a confirmation signal (for example, a PING signal) to the MFP 10 using the wireless network to which both the MFP 10 and the portable terminal 50 belong (see S212 in FIG. 4). . In S18, the communication execution unit 47 monitors the reception of the confirmation signal from the portable terminal 50 via the wireless LAN I / F 20. When the communication execution unit 47 receives a confirmation signal from the portable terminal 50, the communication execution unit 47 determines YES in S18, and proceeds to S20. In the case of NO at S18, the process returns to S14.

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

  Even if a confirmation signal is transmitted from the portable terminal 50 to the MFP 10 using the wireless network to which both the MFP 10 and the portable terminal 50 belong (hereinafter referred to as “both affiliation NW”), the MFP 10 transmits the confirmation signal May not be able to receive. For example, in a situation in which both belonging NWs are normal Wi-Fi NW, when the PS setting of the AP forming the normal Wi-Fi NW is ON, the AP receives a confirmation signal from the portable terminal 50. Even in this case, the confirmation signal is not transmitted to the MFP 10. Also, for example, in a situation where both belonging NWs are WFD NWs (ie, WFD NW (MFP = CL, portable terminal = CL)) in which both the MFP 10 and the portable terminal 50 operate as CL devices, the WFD NW (MFP = CL, When the PS setting of the G / O device forming the portable terminal = CL) is ON, the G / O device transmits a confirmation signal to the MFP 10 even if the confirmation signal is received from the portable terminal 50 do not do. Thus, even if both affiliated NWs are used, it may not be possible to execute the communication of the confirmation signal and the confirmation response signal. Communication of target data (i.e., print data or scan data) is also infeasible when such a dual affiliation NW is used.

  On the other hand, when both belonging NWs are WFDNW (MFP = G / O), the MFP 10 and the portable terminal 50 do not execute communication via the relay device (that is, AP or G / O device). Perform communication directly. Therefore, the event that the data communication is not successful does not occur because the PS setting of the relay apparatus is ON. In addition, even in the situation where both affiliated NWs are normal Wi-Fi NW or WFD NW (MFP = CL, portable terminal = CL), when the PS setting of the relay device is OFF, communication of confirmation signal and confirmation response signal is executed. It is possible. Communication of target data (i.e., print data or scan data) can be performed when both such affiliation NWs are used.

  In view of such circumstances, in S22, the communication execution unit 47 uses the wireless network in which the communication of the confirmation signal and the confirmation response signal is successful (hereinafter referred to as "specific wireless network") to perform the wireless LAN I / I. Communication of target data is executed via F20. Thereby, the MFP 10 and the portable terminal 50 can appropriately execute the communication of the target data. For example, in S22 executed through S50 of FIG. 3, the normal Wi-Fi NW or WFD NW (MFP = G / O) is the above-mentioned specific wireless network. Further, for example, in S22 executed through S60 of FIG. 3, the WFD NW (MFP = G / O) is the above-mentioned specific wireless network. Also, for example, in S22 executed through S70 of FIG. 3, the normal Wi-Fi NW, WFD NW (MFP = CL), or WFD NW (MFP = G / O) is the above-mentioned specific wireless network.

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

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

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

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

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

  As described above, the MFP 10 transmits response data to the portable terminal 50 in S50, S60, or S70 of FIG. 3. As a result, in S204, the information receiving unit 81 receives response data from the MFP 10 via the NFC I / F 62.

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

  Next, in S208, the communication execution unit 82 determines whether the portable terminal 50 belongs to a wireless network corresponding to the wireless setting identified in S206 (hereinafter referred to as "target wireless network"). . Specifically, when the wireless setting specified in S206 matches the wireless setting included in the affiliation information in the memory 74, the communication execution unit 82 determines YES in S208, and performs S210. Skip to step S212. On the other hand, when the wireless setting specified in S206 and the wireless setting included in the affiliation information in the memory 74 do not match, the communication execution unit 82 determines NO in S208, and proceeds to S210.

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

In the communication process of the connection signal and the connection response signal, the communication execution unit 82 transmits the authentication method information, the encryption method information, the password, the SSID, and the BSSID included in the wireless setting specified in S206. Thereby, the target relay device performs authentication of the portable terminal 50. If the authentication is successful, the connection between the portable terminal 50 and the target relay device is successful, and as a result, the portable terminal 50 newly participates in the target wireless network. Note that, at the stage where S210 is performed, the portable terminal 50 may belong to the existing wireless network.
In this case, the portable terminal 50 leaves the existing wireless network and newly participates in the target wireless network.

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

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

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

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

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

  In S220, control unit 70 causes display unit 54 to display information indicating that communication of target data with MFP 10 can not be performed. When S220 ends, the application processing of FIG. 4 ends. When the portable terminal 50 leaves the existing wireless network and joins a new wireless network in S210, the control unit 70 further performs the following processing when the application processing in FIG. 4 is completed. Run. That is, the control unit 70 causes the portable terminal 50 to leave the wireless network that has joined in S210, and causes the portable terminal 50 to participate again in the existing wireless network.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

(Effect of the first embodiment)
As shown in cases A and B of FIGS. 5 and 6, when the MFP 10 belongs to the WFD NW (MFP = G / O), the WFD wireless setting WS1 corresponding to the WFD NW (MFP = G / O) Are transmitted to the portable terminal 50. Therefore, the MFP 10 and the portable terminal 50 can appropriately execute communication of target data using the WFD NW (MFP = G / O).

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

  Further, in the case B of FIG. 6, since the MFP 10 and the portable terminal 50 do not belong to the same normal Wi-Fi NW, the MFP 10 transmits the normal Wi-Fi wireless setting WS4 corresponding to the normal Wi-Fi NW to the portable terminal 50. Without transmitting, WFD wireless setting WS1 corresponding to WFDNW (MFP = G / O) is transmitted to the portable terminal 50. As a result, it is possible to prevent the security of the normal Wi-Fi NW to which the MFP 10 belongs from being degraded. Moreover, the MFP 10 and the portable terminal 50 can appropriately execute the communication of the target data by using the WFD NW (MFP = G / O).

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

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

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

  In case A of FIG. 5, WFDNW (MFP = G / O), WFD wireless setting WS1, normal Wi-Fi NW, and normal Wi-Fi wireless setting WS4 are respectively “first wireless network” and “first information”. These are examples of “4th wireless network” and “4th information”. In cases C and D in FIGS. 7 and 8, the normal Wi-Fi NW, the normal Wi-Fi wireless setting WS2, the WFD NW (MFP = G / O) formed by the MFP 10, and the WFD wireless setting WS3 respectively The “wireless network”, “second information”, “third wireless network”, and “third information” are examples. The wireless network utilized in S22 of FIG. 2 and S218 of FIG. 4 is an example of the “specific wireless network”. The case of YES in S30 of FIG. 3 and the case of YES in S42 are examples of the “first case” and the “second case”, respectively. In addition, S60 executed after S50 or S36 in FIG. 3 is an example of processing executed by the “first information transmission unit”. S70 is an example of a process performed by the “second information transmission unit”. S60 executed after S48 is an example of processing executed by the “third information transmission unit”.

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

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

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

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

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

  At the stage of S170, the portable terminal 50 can not belong to the WFD NW (MFP = G / O). This is because WFDNW (MFP = G / O) is a new WEDNW formed by the MFP 10 in S138. However, there is a possibility that the portable terminal 50 belongs to the normal Wi-Fi NW or WFD NW (MFP = CL) at the stage of S170. Therefore, in the present embodiment, in S170, response data is generated such that the priority of the normal Wi-Fi NW and WFDNW (MFP = CL) is higher than the priority of WFDNW (MFP = G / O). . Thereby, the possibility that the portable terminal 50 does not need to execute the connection process of S210 of FIG. 4 can be increased, and as a result, the processing load of the portable terminal 50 can be reduced. In the modification, in S170, the second information transmitting unit 42 sets the priority of the WFD NW (MFP = CL) to the first priority, and sets the priority of the normal Wi-Fi NW to the second priority. The response data may be generated as follows.

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

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

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

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

(Effect of the second embodiment)
In the present embodiment, when the MFP 10 belongs to the WFD NW (MFP = G / O) (YES in S130), the MFP 10 transmits the WFD wireless setting corresponding to the WFD NW (MFP = G / O) to the portable terminal 50 ( S150, S160). Therefore, the MFP 10 and the portable terminal 50 can appropriately execute communication of target data using the WFD NW (MFP = G / O). Further, when the MFP 10 does not belong to WFDNW (MFP = G / O) but belongs to another wireless network (normally Wi-Fi NW or WFDNW (MFP = CL)) (YES in S134, or WFDNW (MFP = G / O) is newly formed in S142 (YES), and wireless setting corresponding to the above-mentioned other wireless networks (normal Wi-Fi wireless setting or WFDNW (MFP = CL) is supported) WFD wireless setting) and WFD wireless setting corresponding to WFD NW (MFP = G / O) are transmitted to the portable terminal 50 (S170, S180, S190). Therefore, the MFP 10 and the portable terminal 50 can appropriately execute the communication of the target data using the other wireless network or the WFD NW (MFP = G / O) described above. Even if the MFP 10 and the portable terminal 50 can not execute the communication of the target data using the other wireless network described above, the MFP 10 and the portable terminal 50 are formed by the MFP 10 as a WFD NW (MFP = G Communication of target data can be appropriately performed using / O).

(Correspondence relationship)
The case of YES in S130 is an example of the “first case”. That is, WFDNW (MFP = G / O) is an example of the “first wireless network”. The case of YES in S134 or the case of YES in S142 is an example of the “second case”. That is, the normal Wi-Fi NW or WFD NW (MFP = CL) is an example of the “second wireless network”. Further, the WFD NW (MFP = G / O) formed in S138, S140, or S146 is an example of the “third wireless network”. Moreover, S150 or S160 is an example of the process which a "1st information transmission part" performs. S170, S180, or S190 is an example of processing executed by the “second information transmission unit”.

  As mentioned above, although the specific example of this invention was described in detail, these are only an illustration and do not limit a claim. The art set forth in the claims includes various variations and modifications of the specific examples described above. Modifications of the above embodiment are listed below.

(Modification 1) In case A of FIG. 5, the first information transmission unit 41 of the MFP 10 performs all the information in the WFD wireless setting WS1 (ie, authentication method information, encryption method information, SSID, BSSID, and , And the password) is transmitted to the portable terminal 50 (S50 in FIG. 3). Instead of this, the first information transmission unit 41 may transmit, to the portable terminal 50, response data including a part of information (for example, the SSID and the password) in the WFD wireless setting WS1. In this case, when causing the portable terminal 50 to newly participate in the WFD NW (MFP = G / O), the communication execution unit 82 of the portable terminal 50 executes the SSID search (that is, transmits the PReq signal), The PRes signal may be received from the MFP 10 operating as a G / O device. The said PRes signal contains each information (namely, authentication system information, encryption system information, SSID, and BSSID) utilized by WFDNW (MFP = G / O). Thereby, the communication execution unit 82 can acquire each information (i.e., the authentication method information, the encryption method information, and the BSSID) other than the partial information included in the response data, and newly participates in the WFD NW. can do. That is, the "first information" may be all the information in the WFD wireless setting WS1 as in the above-described embodiment, or one of the WFD wireless settings WS1 as in this modification. It may be part information. Similarly, the "sixth information" may be all the information in the WFD wireless setting WS1, or may be a part of the information in the WFD wireless setting WS1.

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

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

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

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

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

(Modification 7) If YES in S30 of FIG. 3, the MFP 10 may execute S60 without executing S32 to S36 and S50. That is, the first information transmission unit 41 may transmit the first information in the first case. Further, the MFP 10 may skip S40 and execute S42 if NO in S30 of FIG. 3, and may skip S44 and execute S46 and S70 if YES in S42. That is, the second information transmission unit 42 may transmit the second information and the third information in the second case. Generally speaking, in one technology disclosed by the present specification, the device-side control unit includes a specific data reception unit, a first information transmission unit, a formation unit, a second information transmission unit, and an apparatus side. It is sufficient if at least a communication execution unit is provided.

(Modification 8) The MFP 10 executes S32 to S36, S50, and S60 when YES in S30 of FIG. 3, but does not execute communication of target data with the portable terminal 50 when NO in S30. It is also good. Further, the MFP 10 may execute S40 to S48, S60, and S70 without executing S30 to S36 and S50 of FIG. 3. That is, generally speaking, in one technology disclosed by the present specification, the device-side control unit includes at least a specific data reception unit, a determination unit, an information transmission unit, and an apparatus-side communication execution unit. Just do it.

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

(Modification 10) The “master station” is not limited to the GFD units in the WFD NW, but is in a state of managing each device belonging to the wireless network (for example, a state capable of relaying wireless communication between each device belonging to the wireless network) As long as it is), it may be in any state. Also, the “child station” is not limited to the client state of the WFD NW or the state belonging to the normal Wi-Fi NW, but it may be in any state as long as it is managed from the parent station of the wireless network. Good.

(Modification 11) The “first type of interface” is not limited to the interface for executing NFC communication, and may be an interface for executing infrared communication, or to execute Bluetooth (registered trademark) Or an interface for executing Transfer Jet. Generally speaking, the communication speed of wireless communication via the second type of interface may be faster than the communication speed of wireless communication via the first type of interface.

(Modification 12) The “first type of interface” and the “second type of interface” are two separately configured interfaces (for example, two IC chips) as in the above embodiment. It may be one, or may be one interface (for example, one IC chip) configured integrally.

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

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

  The technical elements described in the present specification or the drawings exhibit technical usefulness singly or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the techniques illustrated in the present specification or the drawings simultaneously achieve a plurality of purposes, and achieving one of the purposes itself has technical utility.

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

Claims (15)

A communication apparatus for executing communication of target data with a portable terminal, the communication apparatus comprising:
A first type of interface for performing wireless communication with the mobile terminal;
A second type interface for performing wireless communication with the portable terminal, wherein a communication speed of wireless communication via the second type interface is a communication speed of wireless communication via the first type interface Said second type of interface, which is faster than
An apparatus-side control unit,
The device side control unit
A specific data receiving unit for receiving specific data from the portable terminal via the first type interface;
When the specific data is received, the portable terminal performs wireless communication using the first wireless network, in the first case where the communication device belongs to the first wireless network. A first information transmitter configured to transmit first information to the portable terminal via the first type interface, wherein the first wireless network is a wireless type via the second type interface The first information transmission unit, which is a wireless network for performing communication;
When the specific data is received, a third wireless network is newly added in the second case where the communication device does not belong to the first wireless network but belongs to the second wireless network. The forming unit, wherein each of the second wireless network and the third wireless network is a wireless network for performing wireless communication via the second type interface;
In the second case, second information for the mobile terminal to execute wireless communication using the second wireless network, and the mobile terminal wireless communication using the third wireless network A second information transmission unit that transmits, to the portable terminal via the first type of interface, third information for executing the control;
In the first case, communication of the target data with the portable terminal is performed using the first wireless network, and in the second case, the second wireless network or the third wireless An apparatus-side communication execution unit that executes communication between the mobile terminal and the target data using a network;
A communication device comprising Each of the first wireless network and the third wireless network is a wireless network in which the communication device operates as a master station,
The communication device according to claim 1, wherein the second wireless network is a wireless network in which the communication device operates as a slave station. The specific data includes identification information for identifying a wireless network to which the mobile terminal belongs,
The device control unit further includes
In the second case, a first determination unit is used to determine whether the mobile terminal belongs to the second wireless network using the identification information;
The forming unit newly forms the third wireless network regardless of whether or not the mobile terminal is determined to belong to the second wireless network in the second case. The second information transmission unit, in the second case, when it is determined that the portable terminal belongs to the second wireless network, the second information and the third information, Send to the mobile terminal via the first type of interface,
The device control unit further includes
In the second case, when it is determined that the portable terminal does not belong to the second wireless network, the third information may be transmitted as the first type without transmitting the second information. A third information transmission unit for transmitting to the portable terminal via the interface of
The device side communication execution unit
In the second case, when it is determined that the mobile terminal belongs to the second wireless network, the second mobile network or the third wireless network is used to Execute communication of the target data,
In the second case, when it is determined that the portable terminal does not belong to the second wireless network, communication of the target data with the portable terminal is performed using the third wireless network The communication apparatus according to claim 1, wherein   The second information transmission unit further preferentially uses the second wireless network compared to the third wireless network when the second information and the third information are to be transmitted. The communication device according to claim 3, wherein instruction information for instructing the portable terminal to do is transmitted to the portable terminal via the first type interface. The specific data includes identification information for identifying a wireless network to which the mobile terminal belongs,
The device control unit further includes
In the first case, when the communication device belongs not only to the first wireless network but also to a fourth wireless network, the portable terminal can use the fourth identification information by using the identification information. A second determination unit that determines whether or not the mobile station belongs to a wireless network, wherein the fourth wireless network is a wireless network for performing wireless communication via the second type interface. The second determination unit;
The first information transmission unit
In the first case, when it is determined that the portable terminal belongs to the fourth wireless network, the first information and the portable terminal wirelessly using the fourth wireless network Transmitting fourth information for executing communication to the portable terminal via the first type interface;
In the first case, when it is determined that the portable terminal does not belong to the fourth wireless network, the first information may be transmitted without transmitting the fourth information. Send to the mobile terminal via the interface of
The device side communication execution unit
In the first case, when it is determined that the portable terminal belongs to the fourth wireless network, the first wireless network or the fourth wireless network is used to Execute communication of the target data,
In the first case, when it is determined that the portable terminal does not belong to the fourth wireless network, communication of the target data with the portable terminal is performed using the first wireless network The communication apparatus according to any one of claims 1 to 4, wherein   The communication device according to claim 5, wherein the fourth wireless network is a wireless network in which the communication device operates as a slave station.   The first information transmission unit further preferentially uses the fourth wireless network as compared to the first wireless network when the first information and the fourth information are to be transmitted. The communication device according to claim 5 or 6, wherein instruction information for instructing the portable terminal to do is transmitted to the portable terminal via the first type interface. The device-side communication execution unit is a specific wireless network among a plurality of wireless networks including the first, second, and third wireless networks, further comprising: the communication device and the portable terminal When the confirmation signal is received from the portable terminal using the specific wireless network to which both belong, an acknowledgment response signal to the confirmation signal is transmitted using the specific wireless network;
The device side communication execution unit executes communication of the target data with the portable terminal using the specific wireless network used for communication of the confirmation signal and the confirmation response signal. The communication device according to any one of the above. The first information includes wireless setting information for performing wireless communication using the first wireless network,
The second information includes wireless setting information for performing wireless communication using the second wireless network,
The communication apparatus according to any one of claims 1 to 8, wherein the third information includes wireless setting information for performing wireless communication using the third wireless network. A communication apparatus for executing communication of target data with a portable terminal, the communication apparatus comprising:
A first type of interface for performing wireless communication with the mobile terminal;
A second type interface for performing wireless communication with the portable terminal, wherein a communication speed of wireless communication via the second type interface is a communication speed of wireless communication via the first type interface Said second type of interface, which is faster than
An apparatus-side control unit,
The device side control unit
A specific data receiving unit for receiving specific data from the portable terminal via the first type interface, wherein the specific data is identification information for identifying a wireless network to which the portable terminal belongs. The specific data receiving unit including
When the communication device belongs to a fifth wireless network when the specific data is received, whether the portable terminal belongs to the fifth wireless network using the identification information The fifth wireless network is a wireless network for the communication device to operate as a slave station to execute wireless communication via the second type interface. The determination unit;
In the third case where it is determined that the portable terminal belongs to the fifth wireless network, fifth information for the wireless terminal to execute wireless communication using the fifth wireless network Transmitting the sixth information for the mobile terminal to execute wireless communication using a sixth wireless network to the mobile terminal via the first type interface;
In a fourth case where it is determined that the portable terminal does not belong to the fifth wireless network, the sixth information is transmitted via the first type interface without transmitting the fifth information. Information transmission unit for transmitting information to the mobile terminal;
The sixth wireless network, the information transmitting unit being a wireless network for the communication device to operate as a master station to execute wireless communication via the second type interface;
In the third case, communication of the target data with the portable terminal is executed using the fifth wireless network or the sixth wireless network, and in the fourth case, the sixth wireless An apparatus-side communication execution unit that executes communication between the mobile terminal and the target data using a network;
A communication device comprising A portable terminal for executing communication between a communication device and target data,
A first type of interface for performing wireless communication with the communication device;
A second type interface for performing wireless communication with the communication device, wherein a communication speed of wireless communication via the second type interface is a communication speed of wireless communication via the first type interface Said second type of interface, which is faster than
A terminal-side control unit,
The terminal side control unit
A specific data transmission unit that transmits specific data to the communication device via the first type of interface;
An information receiving unit for receiving, from the communication device via the first type interface, specific information for the portable terminal to execute wireless communication using a wireless network after the specific data is transmitted; ,
The specific information includes one piece of information for the mobile terminal to perform wireless communication using one wireless network, and wireless using another wireless network different from the one wireless network In the case where no other information for performing communication is included, communication of the target data with the communication device is performed using the one wireless network.
When the specific information includes a plurality of information including the one information and the other information, each of the plurality of wireless networks including the one wireless network and the other wireless network is selected. A terminal side communication execution unit that executes communication between the communication device and the target data sequentially using
Each of the plurality of wireless networks is a wireless network for performing wireless communication via the second type interface, and the terminal side communication execution unit;
Mobile terminal equipped with When the specific information includes the plurality of pieces of information, the terminal-side communication execution unit sequentially transmits a confirmation signal to the communication device using each of the plurality of wireless networks.
When the terminal-side communication execution unit receives a confirmation response signal to the confirmation signal from the communication device using a specific wireless network among the plurality of wireless networks, the terminal-side communication execution unit performs The mobile terminal according to claim 11, wherein communication is performed between the mobile terminal and the target data using the mobile terminal. A computer program for a communication device for performing communication of a portable terminal and target data, comprising:
The communication device is
A first type of interface for performing wireless communication with the mobile terminal;
A second type interface for performing wireless communication with the portable terminal, wherein a communication speed of wireless communication via the second type interface is a communication speed of wireless communication via the first type interface An interface of the second type, which is faster than
The computer program causes the computer installed in the communication device to perform the following processing:
Specific data reception processing for receiving specific data from the portable terminal via the first type interface;
When the specific data is received, the portable terminal performs wireless communication using the first wireless network, in the first case where the communication device belongs to the first wireless network. A first information transmission process for transmitting first information to the portable terminal via the first type interface, wherein the first wireless network is a wireless type via the second type interface The first information transmission process, which is a wireless network for performing communication;
When the specific data is received, a third wireless network is newly added in the second case where the communication device does not belong to the first wireless network but belongs to the second wireless network. The forming process, wherein each of the second wireless network and the third wireless network is a wireless network for executing wireless communication via the second type interface;
In the second case, second information for the mobile terminal to execute wireless communication using the second wireless network, and the mobile terminal wireless communication using the third wireless network A second information transmission process of transmitting to the portable terminal via the first type of interface, and third information for executing the step of
In the first case, communication of the target data with the portable terminal is performed using the first wireless network, and in the second case, the second wireless network or the third wireless Device-side communication execution processing for executing communication between the mobile terminal and the target data using a network;
A computer program that runs A computer program for a communication device for performing communication of a portable terminal and target data, comprising:
The communication device is
A first type of interface for performing wireless communication with the mobile terminal;
A second type interface for performing wireless communication with the portable terminal, wherein a communication speed of wireless communication via the second type interface is a communication speed of wireless communication via the first type interface An interface of the second type, which is faster than
The computer program causes the computer installed in the communication device to perform the following processing:
Specific data reception processing for receiving specific data from the portable terminal via the first type interface, wherein the specific data is identification information for identifying a wireless network to which the portable terminal belongs. The specific data reception process including
When the communication device belongs to a fifth wireless network when the specific data is received, whether the portable terminal belongs to the fifth wireless network using the identification information The fifth wireless network is a wireless network for the communication device to operate as a slave station to execute wireless communication via the second type interface. The determination process;
In the third case where it is determined that the portable terminal belongs to the fifth wireless network, fifth information for the wireless terminal to execute wireless communication using the fifth wireless network Transmitting the sixth information for the mobile terminal to execute wireless communication using a sixth wireless network to the mobile terminal via the first type interface;
In a fourth case where it is determined that the portable terminal does not belong to the fifth wireless network, the sixth information is transmitted via the first type interface without transmitting the fifth information. Information transmission processing to be transmitted to the mobile terminal;
The information transmission process, wherein the sixth wireless network is a wireless network for the communication device to operate as a master station to execute wireless communication via the second type interface;
In the third case, communication of the target data with the portable terminal is executed using the fifth wireless network or the sixth wireless network, and in the fourth case, the sixth wireless Device-side communication execution processing for executing communication between the mobile terminal and the target data using a network;
A computer program that runs A computer program for a portable terminal for performing communication of target data with a communication device, comprising:
The portable terminal is
A first type of interface for performing wireless communication with the communication device;
A second type interface for performing wireless communication with the communication device, wherein a communication speed of wireless communication via the second type interface is a communication speed of wireless communication via the first type interface An interface of the second type, which is faster than
The computer program causes the computer mounted on the mobile terminal to perform the following processing:
A specific data transmission process of transmitting specific data to the communication device via the first type interface;
An information receiving process for receiving, from the communication device via the first type of interface, specific information for the portable terminal to execute wireless communication using a wireless network after the specific data is transmitted; ,
The specific information includes one piece of information for the mobile terminal to perform wireless communication using one wireless network, and wireless using another wireless network different from the one wireless network In the case where no other information for performing communication is included, communication of the target data with the communication device is performed using the one wireless network.
When the specific information includes a plurality of information including the one information and the other information, each of the plurality of wireless networks including the one wireless network and the other wireless network is selected. A terminal-side communication execution process that executes communication between the communication device and the target data sequentially using
Each of the plurality of wireless networks is a wireless network for executing wireless communication via the second type interface, the terminal side communication execution processing;
A computer program that runs

Images