JP2019030024A - Communication apparatus - Google Patents

Abstract

To disclose a technique to allow wireless connection in accordance with a first communication system to be established in an appropriate situation after wireless communication in accordance with a second communication system is performed.SOLUTION: If a printer PR performs BT communication and receives distance information from a mobile terminal PT1, the printer PR determines that a BT device name "N1" in the distance information is already stored (T116A). In this case, the printer PR performs BT communication, transmits network information to the mobile terminal PT1 (T119), and establishes Wi-Fi connection with the mobile terminal PT1 (T132). Meanwhile, if the printer PR performs BT communication and receives distance information from a mobile terminal PT2, the printer PR determines that a BT device name "N2" in the distance information is not stored yet (T216A). In this case, the printer PR does not transmit the network information to the mobile terminal PT2, and does not establish Wi-Fi connection with the mobile terminal PT2.SELECTED DRAWING: Figure 9

Description

  The present specification discloses a communication device capable of performing wireless communication according to a plurality of communication methods.

  Patent Document 1 discloses a technique for allowing a first terminal and an external device to perform wireless communication according to Wi-Fi. The first terminal obtains information (that is, MAC address, SSID, channel number, security key, etc.) related to the AP (access point) to which the first terminal is connected to BLE (Bluetooth (registered trademark) Low Energy). To the external device. In this case, the external device activates the Wi-Fi module and uses the information to connect to the AP. Accordingly, the first terminal and the external device can execute wireless communication according to Wi-Fi.

JP 2014-53007 A

  In the technology of Patent Document 1, even when the user does not want the external device to be connected to the AP, if information about the AP is transmitted from the first terminal to the external device via the BLE, the external device Will be connected to the AP.

  In the present specification, after wireless communication according to the second communication method is executed between the first communication device and the second communication device, the first communication method is followed in an appropriate situation. A technique by which a wireless connection can be established is disclosed.

  The first communication device disclosed in this specification includes a first interface for performing wireless communication according to the first communication method, and a second communication method different from the first communication method. In a state where the distance between the second interface for executing the wireless communication according to the first communication device and the second communication device is less than a predetermined distance, via the second interface, A first network-related information transmitting unit that transmits first network-related information related to a first wireless network to the second communication device, wherein the first wireless network includes the first interface. From the first network-related information transmitting unit, which is a network for performing wireless communication via the network, and the second communication device that has received the first network-related information A first connection request receiving unit configured to receive a first wireless connection request via the first interface; and receiving the first wireless connection request from the second communication device; Using the first network related information, a first wireless connection via the first interface is established with the second communication device, and the first communication device and the second communication device are A first establishing unit that forms the first wireless network to which both belong, and a device that receives second device identification information for identifying the second communication device from the second communication device An identification information receiving unit; a storage control unit for storing the second device identification information in a memory of the first communication device; and a third communication after the second device identification information is stored in the memory. From the device, the second interface A specific information receiving unit for receiving specific information including third device identification information for identifying the third communication device via the network, and the third device identification information in the specific information is stored in the memory. An identification information determination unit that determines whether or not the second device identification information matches the second device identification information, and when the third device identification information matches the second device identification information, 2nd network-related information related to the second wireless network is transmitted to the second communication device that matches the third communication device via the second interface, and the third device identification information is A second network-related information transmitting unit that does not transmit the second network-related information to the third communication device when it is determined not to match the second device identification information, Network , A network for performing wireless communication via the first interface, wherein the second network relationship information is different from the first network relationship information, and the second network relationship information transmission unit A second connection request receiving unit that receives a second wireless connection request from the second communication device that has received the second network-related information via the first interface; and In response to receiving the second wireless connection request from the communication device, the second communication device uses the second network-related information to establish a second wireless connection via the first interface. And a second establishing unit that forms the second wireless network to which both the first communication device and the second communication device belong.

  According to the above configuration, the first communication device is in a state where the distance between the first communication device and the second communication device is less than a predetermined distance, that is, the user wirelessly follows the first communication method. In a state where it is highly likely that a connection is desired, the first network related information is transmitted to the second communication device via the second interface. As a result, the first communication device can establish a first wireless connection according to the first communication method with the second communication device to form a first wireless network. Then, the first communication device receives the second device identification information from the second communication device and stores it in the memory. After that, when the first communication device receives the specific information from the third communication device via the second interface, the third device identification information in the specific information becomes the second device identification information in the memory. It is determined whether or not it matches. The fact that the third device identification information matches the second device identification information means that the third communication device has received the second communication in which the first wireless connection according to the first communication method has been established in the past. It means to match the device. Therefore, when the third device identification information matches the second device identification information, it is highly likely that the user wants to re-establish a wireless connection according to the first communication method. On the other hand, if the third device identification information does not match the second device identification information, it is unlikely that the user wants to establish a wireless connection according to the first communication method. Therefore, if the first communication device determines that the third device identification information does not match the second device identification information, the first communication device does not transmit the second network related information to the third communication device. As a result, the wireless connection according to the first communication method is not established with the third communication device. When the first communication device determines that the third device identification information matches the second device identification information, the first communication device sends the second network-related information to the third communication device via the second interface. To a second communication device that matches Accordingly, the first communication device can establish the second wireless connection according to the first communication method with the second communication device to form the second wireless network. In this way, the first communication device can establish wireless connection according to the first communication method in an appropriate situation after executing wireless communication according to the second communication method.

  A control method, a computer program, and a computer-readable recording medium storing the computer program for realizing the first communication device are also novel and useful.

  Also disclosed herein is a computer program for a second communication device. The second communication device executes a first interface for performing wireless communication according to the first communication method, and wireless communication according to a second communication method different from the first communication method. A second interface and a processor. The computer program causes the processor to execute the following processes, that is, from the first communication device in a state where the distance between the first communication device and the second communication device is less than a predetermined distance. A first network-related information receiving process for receiving first network-related information related to a first wireless network via the second interface, wherein the first wireless network includes the first network-related information; In response to receiving the first network-related information receiving process from the first communication device and the first network-related information receiving process, which is a network for performing wireless communication via an interface, A first connection request transmission process for transmitting a first wireless connection request to the first communication device via the first interface; and the first wireless connection. In response to transmitting a request to the first communication device, a first wireless connection via the first interface is established with the first communication device using the first network related information. Then, from the first communication device, the first establishment process for forming the first wireless network to which both the first communication device and the second communication device belong, and the first communication device A device identification information receiving process for receiving first device identification information for identifying a communication device, a storage control process for storing the first device identification information in a memory of the second communication device, and the first First information including third device identification information for identifying the third communication device from the third communication device via the second interface after the device identification information is stored in the memory. Receiving a predetermined signal of the first A constant signal reception process; an identification information determination process for determining whether the third device identification information in the first predetermined signal matches the first device identification information in the memory; When it is determined that the device identification information of 3 matches the first device identification information, a first predetermined request for requesting network-related information related to a wireless network is made via the second interface. The first predetermined request is transmitted to the first communication device that matches the third communication device, and when it is determined that the third device identification information does not match the first device identification information. Is transmitted from the first communication device to the first communication device in response to transmitting the first predetermined request to the first communication device. Via 2 interfaces Second network related information reception processing for receiving second network related information related to the second wireless network, wherein the second wireless network performs wireless communication via the first interface. The second network relation information is different from the first network relation information, the second network relation information receiving process, and the second communication information from the first communication device. A second connection request transmission process for transmitting a second wireless connection request to the first communication device via the first interface in response to receiving the network-related information; and the second wireless connection In response to transmitting a connection request to the first communication device, the second network related information is used to transmit the connection request via the first interface. And establishing a second wireless connection with the first communication device to form the second wireless network to which both the first communication device and the second communication device belong. Process.

  The above computer program can realize the following second communication device. That is, the second communication device is in a state where the distance between the first communication device and the second communication device is less than a predetermined distance, that is, the user establishes a wireless connection according to the first communication method. In a state where there is a high possibility that the first network related information is desired, the first network related information is received from the first communication device via the second interface. As a result, the second communication device can establish a first wireless connection with the first communication device in accordance with the first communication method to form a first wireless network. Then, the second communication device receives the first device identification information from the first communication device and stores it in the memory. Thereafter, when the second communication device receives the first predetermined signal from the third communication device via the second interface, the third device identification information in the first predetermined signal is stored in the memory. It is determined whether or not it matches the first device identification information. The fact that the third device identification information matches the first device identification information means that the first communication in which the third communication device has established the first wireless connection according to the first communication method in the past. It means to match the device. Therefore, it is highly likely that the user wants to re-establish a wireless connection according to the first communication method. On the other hand, if the third device identification information does not match the first device identification information, it is unlikely that the user wants to establish a wireless connection according to the first communication method. Therefore, if the second communication device determines that the third device identification information does not match the first device identification information, the second communication device does not transmit the first predetermined request to the third communication device, and as a result, The wireless connection according to the first communication method is not established with the third communication device. When the second communication device determines that the third device identification information matches the first device identification information, the second communication device sends a first predetermined request to the third communication device via the second interface. Transmit to the matching first communication device. Accordingly, the second communication device receives the second network-related information from the first communication device via the second interface, and establishes the second wireless connection according to the first communication method in the first A second wireless network can be formed by establishing with a communication device. As described above, the second communication device can establish a wireless connection according to the first communication method in an appropriate situation after executing the wireless communication according to the second communication method.

  A computer-readable recording medium for storing the above computer program is also new and useful. The second communication device itself is also new and useful. Also, a control method for realizing the second communication device is novel and useful. A communication system including the first communication device and the second communication device is also new and useful.

1 shows a configuration of a communication system. 2 shows a flowchart of processing of the printer of the first embodiment. The flowchart of the process of the portable terminal of 1st Example is shown. The sequence diagram of case A of the 1st example is shown. The sequence diagram of cases B1 and B2 of the first embodiment is shown. 6 shows a flowchart of processing of a printer of a second embodiment. The flowchart of the process of the portable terminal of 2nd Example is shown. The sequence diagram of case C of the second embodiment is shown. The sequence diagram of cases D1 and D2 of the 2nd example is shown. 9 shows a flowchart of processing of a printer of a third embodiment. The flowchart of the process of the portable terminal of 3rd and 4th Example is shown. The sequence diagram of case E of the 3rd and 4th example is shown. The sequence diagram of cases F1 and F2 of the 3rd example is shown. 10 shows a flowchart of processing of a printer of a fourth embodiment. The sequence diagram of cases G1 and G2 of the 4th example is shown.

(First embodiment)
(Configuration of communication system 2)
As shown in FIG. 1, the communication system 2 includes a printer PR and a plurality of portable terminals PT1 and PT2. The printer PR and each of the portable terminals PT1 and PT2 can perform wireless communication with each other.

(Configuration of printer PR)
The printer PR is a peripheral device that can execute a printing function, that is, a peripheral device such as the portable terminal PT1. The printer PR includes an operation unit 12, a display unit 14, a print execution unit 16, a Wi-Fi interface 20, a BT (abbreviation of Bluetooth (registered trademark)) interface 22, and a control unit 30. Each part 12-30 is connected to a bus line (reference number omitted). Hereinafter, the interface is referred to as “I / F”. 1 also discloses an NFC (abbreviation of Near Field Communication) I / F 24. The NFC I / F 24 is an I / F used in third and fourth embodiments described later. The printers PR of the first and second embodiments may or may not be provided.

  The operation unit 12 includes a plurality of keys. The user can input various instructions to the printer PR by operating the operation unit 12. The display unit 14 is a display for displaying various information. The display unit 14 also functions as a so-called touch panel. That is, the display unit 14 also functions as an operation unit operated by the user. The print execution unit 16 is a printing mechanism such as an inkjet method or a laser method.

  The Wi-Fi I / F 20 is an I / F for executing wireless communication (hereinafter referred to as “Wi-Fi communication”) according to the Wi-Fi scheme. The Wi-Fi system conforms to, for example, IEEE (abbreviation of The Institute of Electrical and Electronics Engineers, Inc.) 802.11 standard and standards (for example, 802.11a, 11b, 11g, 11n, etc.). Based wireless communication scheme. More specifically, the Wi-Fi I / F 20 supports a WFD (abbreviation of Wi-Fi Direct (registered trademark)) method formulated by the Wi-Fi Alliance. The WFD method is a wireless communication method described in a standard document “Wi-Fi Peer-to-Peer (P2P) Technical Specification Version 1.1” created by Wi-Fi Alliance.

  The BTI / F 22 is an I / F for executing wireless communication (hereinafter referred to as “BT communication”) according to the Bluetooth method. The Bluetooth system is a wireless communication system based on, for example, the IEEE 802.15.1 standard and a standard conforming thereto. More specifically, the BTI / F 22 supports BLE (abbreviation for Bluetooth Low Energy). BLE is a standard realized by the version 4.0 or later of the Bluetooth system. In the following, Bluetooth version less than 4.0 is referred to as “classic BT”. In order to execute BT communication according to BLE between a pair of BTI / Fs, one BTI / F corresponds to “Bluetooth Smart Ready” defined by the BT method, and the other BTI / F However, it may correspond to “Bluetooth Smart Ready” or “Bluetooth Smart” defined by the BT method. The BTI / F corresponding to “Bluetooth Smart Ready” is an I / F (that is, a so-called dual mode I / F) capable of executing both an operation according to BLE and an operation according to classic BT. A BTI / F corresponding to “Bluetooth Smart” is an I / F that can execute an operation according to BLE but cannot execute an operation according to classic BT. In this embodiment, BT communication according to BLE is executed between the printer PR and the portable terminals PT1 and PT2. Since BTI / F (for example, reference numeral 62) described later of the portable terminals PT1 and PT2 is compatible with “Bluetooth Smart Ready”, the BTI / F 22 of the printer PR is set to “Bluetooth Smart Ready” and “Bluetooth Smart”. Either one may be supported. However, in a modified example, when the BTI / F 22 of the printer PR is compatible with “Bluetooth Smart Ready”, the BTI / F of the portable terminals PT1, PT2 may be compatible with “Bluetooth Smart”.

  Describe the differences between Classic BT and BLE. The number of BLE channels (ie 40) is less than the number of classic BT channels (ie 79). The current consumption (for example, 15 mA) during BLE data communication is smaller than the current consumption (for example, 35 mA) during classic BT data communication. Therefore, the power consumption of BLE is lower than the power consumption of classic BT. In BLE, Advertise signal is used, but in Classic BT, Advertise signal is not used.

  Differences between the Wi-Fi system and the BT system will be described. The communication speed of Wi-Fi communication (for example, the maximum communication speed is 600 Mbps) is faster than the communication speed of BT communication (for example, the maximum communication speed is 24 Mbps). The frequency of the carrier wave in Wi-Fi communication is the 2.4 GHz band or the 5.0 GHz band. The frequency of the carrier wave in BT communication is the 2.4 GHz band. That is, when the 5.0 GHz band is adopted as the carrier frequency in Wi-Fi communication, the carrier frequency in Wi-Fi communication is different from the carrier frequency in BT communication. Further, the maximum distance (for example, about 100 m) at which Wi-Fi communication can be performed is larger than the maximum distance (for example, about several tens of meters) at which BT communication can be performed.

  The control unit 30 includes a CPU 32 and a memory 34. The CPU 32 executes various processes according to the program 36 stored in the memory 34. The memory 34 is configured by a volatile memory, a nonvolatile memory, or the like. The memory 34 stores the BT device name “NP” of the printer PR. The BT device name “NP” is a unique name assigned to the BTI / F 22. In other words, the name is used as information for identifying the printer PR in order for the printer PR to execute BT communication. is there. In FIG. 1, the memory 34 is shown to include an area 40, but the area 40 is used in second and fourth embodiments described later.

(Configuration of portable terminals PT1, PT2)
Each of the mobile terminals PT1 and PT2 is a portable terminal device such as a mobile phone (for example, a smartphone), a PDA, a notebook PC, a tablet PC, a mobile music playback device, a mobile video playback device, and the like. Below, although the structure of portable terminal PT1 is demonstrated, portable terminal PT2 is also equipped with the structure similar to portable terminal PT1.

  The portable terminal PT1 includes an operation unit 52, a display unit 54, a Wi-Fi I / F 60, a BTI / F 62, and a control unit 70. Each unit 52 to 70 is connected to a bus line (reference numeral omitted). The NFC I / F 64 is an I / F used in third and fourth embodiments to be described later, and may or may not be provided in the portable terminal PT1 in the first and second embodiments. Also good.

  The operation unit 52 includes a plurality of keys. The user can input various instructions to the portable terminal PT1 by operating the operation unit 52. The display unit 54 is a display for displaying various information. The display unit 54 also functions as a so-called touch panel (that is, also functions as an operation unit). The Wi-Fi I / F 60 is an I / F for executing Wi-Fi communication. The Wi-Fi I / F 60 may support WFD or may not support WFD. The BTI / F 62 is an I / F for executing BT communication, and supports BLE. The difference between the I / Fs 60 and 62 is the same as the difference between the I / Fs 20 and 22 of the printer PR.

  The control unit 70 includes a CPU 72 and a memory 74. The CPU 72 executes various processes according to the OS program 76 stored in the memory 74. The memory 74 is configured by a volatile memory, a nonvolatile memory, or the like. The memory 74 stores not only the OS program 76 but also the printer application 78. The printer application 78 is an application for causing the printer PR to execute a printing function. When the user desires the printer PR to execute the printing function, the printer application 78 is activated by the user. For example, the printer application 78 may be installed in the portable terminal PT1 from a server on the Internet provided by the vendor of the printer PR, or may be installed in the portable terminal PT1 from a medium shipped with the printer PR.

  The memory 74 further stores the BT device name “N1” of the portable terminal PT1. The BT device name “N1” is a unique name assigned to the BTI / F 62. In other words, the BT device name “N1” is used as information for identifying the portable terminal PT1 so that the portable terminal PT1 performs BT communication. It is a name. The mobile terminal PT2 has a BT device name “N2” different from the BT device name “N1”. The memory 74 includes a BT device name storage area 80. The BT device name storage area 80 is a BT device name of a printer (hereinafter referred to as “established printer”) in which wireless connection via the Wi-Fi I / F 60, that is, wireless connection according to the Wi-Fi method is established. Is an area for storing.

(Processing of printer PR; FIG. 2)
Next, processing executed by the CPU 32 of the printer PR will be described with reference to FIG. The CPU 32 starts the processing of FIG. 2 when the printer PR is powered on.

  In S2, the CPU 32 generates an SSID (abbreviation of Service Set Identifier) by randomly generating a character string. Then, the CPU 32 stores the SSID in the memory 34. The SSID is an identifier for identifying a wireless network for executing Wi-Fi communication.

  In S4, the CPU 32 changes the BTI / F 22 from the OFF state to the ON state. Here, the OFF state of the BTI / F 22 is a state where power is not supplied to the BTI / F 22, that is, a state where BT communication cannot be performed. The ON state of the BTI / F 22 is a state where power is supplied to the BTI / F 22, that is, a state where BT communication can be performed. The power consumption of the BTI / F 22 in the ON state (that is, the power consumption of the BLE) is lower than the power consumption of the Wi-Fi I / F 20 in the ON state.

  In S6, the CPU 32 starts a transmission process for repeatedly broadcasting the Advertise signal via the BTI / F22. The Advertise signal includes the BT device name “NP” of the printer PR in the memory 34. The Advertise signal is a signal for informing the devices around the printer PR of the existence of the printer itself. In particular, the CPU 32 transmits an Advertise signal to the outside without establishing a Bluetooth logical link (that is, a Bluetooth wireless connection). More specifically, in the Bluetooth protocol stack, communication at the L2CAP layer or higher is not executed, communication at a layer lower than the L2CAP layer (that is, the Link Manager layer or Link Layer layer) is executed, and the Advertise signal is communicated. Is done. The L2CAP layer is the highest layer for establishing a Bluetooth logical link. That is, communication at the lower layer than the highest layer is executed without communication of the highest layer for establishing a logical link, and the Advertise signal is communicated.

  In S10, the CPU 32 monitors whether a Scan Request signal (hereinafter referred to as “Scan_Req signal”) is received from the portable terminal via the BTI / F22. The Scan_Req signal is a signal transmitted from the mobile terminal that has received the Advertise signal. The Scan_Req signal is a unicast signal, and includes the BT device name “NP” of the printer PR as information indicating the transmission destination, and the BT device name of the portable terminal (for example, the BT device name of the portable terminal PT1) as information indicating the transmission source. “N1”). The Scan_Req signal is a signal for requesting the printer PR for network information including an SSID and a password. In particular, the CPU 32 can receive the Scan_Req signal without establishing a logical link. That is, the communication of the lower layer than the highest layer is executed without performing the communication of the highest layer for establishing the logical link, and the Scan_Req signal is communicated. When receiving the Scan_Req signal, the CPU 32 determines YES in S10, and proceeds to S12.

  In S <b> 12, the CPU 32 transmits a Scan Response signal (hereinafter referred to as “Scan_Res signal”) to the mobile terminal that is the transmission source of the Scan_Req signal via the BTI / F 22. The Scan_Res signal is a unicast signal that is a response signal to the Scan_Req signal, and includes the BT device name of the mobile terminal (that is, the BT device name of the transmission source in the Scan_Req signal) as information indicating the transmission destination and the transmission source. Information to be included includes the BT device name “NP” of the printer PR. The CPU 32 transmits a Scan_Res signal without establishing a logical link. That is, the communication of the Scan_Res signal is performed by performing communication of a lower layer than the highest layer without performing communication of the highest layer for establishing a logical link.

  The Scan_Res signal includes the SSID in the memory 34 and a predetermined password. As described above, the SSID is stored in the memory 34 in S2. However, when S32 described later is executed after S2 is executed, a new SSID is stored in the memory 34 instead of the old SSID in the memory 34. Therefore, in a situation where S32 has not been executed once after S2 is executed, the SSID in the Scan_Res signal is the SSID generated in S2. In a situation where S32 has been executed after S2 is executed, the SSID in the Scan_Res signal is the SSID generated in the latest S32. Hereinafter, the SSID currently stored in the memory 34 is referred to as “current SSID”. The predetermined password is a fixed character string preset in the printer PR. That is, in this embodiment, when the printer PR is turned on or S32 described later is executed, the SSID is changed, but the password is not changed.

  In S14, the CPU 32 changes the Wi-Fi I / F 20 from the OFF state to the ON state. Here, the OFF state of the Wi-Fi I / F 20 is a state where power is not supplied to the Wi-Fi I / F 20, that is, a state where Wi-Fi communication cannot be performed. The ON state of the Wi-Fi I / F 20 is a state where power is supplied to the Wi-Fi I / F 20, that is, a state where Wi-Fi communication can be performed. Since the Wi-Fi I / F 20 can be set to the OFF state until S14 is executed, the power consumption of the printer PR can be reduced.

  In S14, the CPU 32 voluntarily shifts the operation state of the printer PR from the WFD device state to the G / O state without executing WFD G / O (abbreviation of Group Owner) negotiation. The printer PR in the G / O state transmits a beacon signal for informing the surrounding devices of its presence via the Wi-Fi I / F 20. On the other hand, the printer PR that is in a state other than the G / O state (for example, the above-described device state or client state) does not transmit a beacon signal. For this reason, the power consumption of the printer PR in the G / O state is higher than the power consumption of the printer PR in a state other than the G / O state. Since the operation state of the printer PR can be set to the device state until S14 is executed, the power consumption of the printer PR can be reduced.

  In S16, the CPU 32 receives a Wi-Fi connection request signal including the current SSID from the mobile terminal via the Wi-Fi I / F 20. The Wi-Fi connection request signal is a signal for requesting the printer PR to establish a wireless connection (hereinafter referred to as “Wi-Fi connection”) according to the Wi-Fi method, and specifically, an association request. Signal.

  In S18, the CPU 32 establishes a Wi-Fi connection with the mobile terminal. Specifically, the CPU 32 performs communication of various signals (for example, transmission of Association Response signal, 4-Way Handshake communication, etc.) with the mobile terminal via the Wi-Fi I / F 20. The CPU 32 receives network information including the SSID and password from the portable terminal in the course of communication of the various signals described above, and executes authentication of the network information. When the received SSID matches the current SSID and the received password matches the predetermined password, the CPU 32 determines that the authentication of the network information has succeeded and establishes a Wi-Fi connection with the mobile terminal. Establish. As described above, in S12, since the Scan_Res signal including the current SSID and the predetermined password is transmitted to the mobile terminal, network information including the current SSID and the predetermined password is received from the mobile terminal. Accordingly, in S18, the network information is normally successfully authenticated, and the Wi-Fi connection with the mobile terminal is established.

  As described above, in S18, a Wi-Fi connection is established between the printer PR and the portable terminal. Thus, a Wi-Fi wireless network (hereinafter referred to as “Wi-Fi network”) in which the printer PR operates in the G / O state and the mobile terminal operates as a so-called legacy is formed. Legacy means a device that participates in a Wi-Fi network without executing an operation according to the WFD. Since the printer PR in the G / O state manages the Wi-Fi network, it can be said that the printer PR in the G / O state is a master station (in other words, a master device) of the Wi-Fi network. In addition, since the legacy mobile terminal participates in the Wi-Fi network, it can be said that the legacy mobile terminal is a slave station (in other words, a slave device) of the Wi-Fi network.

  Next, the CPU 32 repeats sequentially executing the monitoring processes of S20 and S30. In S20, the CPU 32 determines whether print data representing an image to be printed has been received from the portable terminal via the Wi-Fi I / F 20 using the Wi-Fi network. When receiving the print data (YES in S20), the CPU 32 supplies the print data to the print execution unit 16 and causes the print execution unit 16 to execute printing according to the print data in S22. When S22 ends, the process returns to S20.

  In S <b> 30, the CPU 32 determines whether a disconnection signal is received from the mobile terminal via the Wi-Fi I / F 20 using the Wi-Fi network. The disconnect signal is a signal for requesting disconnection of the Wi-Fi connection. Therefore, when the disconnection signal is received (YES in S30), the Wi-Fi connection between the printer PR and the portable terminal is disconnected, and the process proceeds to S32.

  In S32, the CPU 32 shifts the operation state of the printer PR from the G / O state to the device state. Thereby, the power consumption of the printer PR can be reduced. In S32, the CPU 32 further changes the Wi-Fi I / F 20 from the ON state to the OFF state. Thereby, the power consumption of the printer PR can be reduced. In the modification, instead of changing to the OFF state in which power is not supplied, the standby state may be changed in which power is supplied. Here, the power consumption in the standby state is lower than the power consumption in the ON state. In S <b> 32, the CPU 32 further generates a new SSID and stores the new SSID in the memory 34 instead of the old SSID in the memory 34. That is, the CPU 32 changes the SSID. Thus, since the SSID is changed every time the printer PR stops the G / O state, the security of the Wi-Fi network can be improved. When S32 ends, the process returns to S10.

(Processing of portable terminal PT1; FIG. 3)
Subsequently, a process executed by the CPU 72 of the portable terminal PT1 will be described with reference to FIG. Note that the portable terminal PT2 can execute the same processing. When the operation for starting up the printer application 78 is executed on the portable terminal PT1, the CPU 72 starts the process of FIG. In addition, operation with respect to portable terminal PT1 may be performed by the operation part 52, and may be performed by the display part 54 (namely, touch panel). This also applies to the following.

  In S50, the CPU 72 monitors reception of the Advertise signal via the BTI / F62. As described above, the printer PR broadcasts the Advertise signal including the BT device name “NP” (see S6 in FIG. 2). Therefore, if the distance between the printer PR and the portable terminal PT1 is shorter than the maximum distance at which BT communication can be performed, the CPU 72 receives the Advertise signal from the printer PR via the BTI / F62. In this case, the CPU 72 determines YES in S50, and proceeds to S52.

  In S <b> 52, the CPU 72 determines whether or not the BT device name (that is, the received BT device name) in the received Advertise signal is stored in the BT device name storage area 80. As described above, the BT device name storage area 80 stores the BT device name of the established printer. Therefore, the determination in S52 means determining whether or not the printer PR that is the source of the Advertise signal is an established printer. If the CPU 72 determines that the received BT device name is stored in the BT device name storage area 80 (YES in S52), the process proceeds to S60. On the other hand, if the CPU 72 determines that the received BT device name is not stored in the BT device name storage area 80 (NO in S52), the process proceeds to S54.

  In S54, the CPU 72 determines whether or not the distance between the printer PR that is the source of the Advertise signal and the portable terminal PT1 is less than a threshold value. Here, the threshold value is a distance (for example, 1 m) smaller than the maximum distance (for example, several tens of meters) at which BT communication can be performed. Specifically, the printer application 78 describes the radio field intensity (hereinafter referred to as “transmission intensity”) of the Advertise signal at the time of transmission from the printer PR. Then, the CPU 72 acquires the radio wave intensity of the Advertise signal at the time of reception by the BTI / F 62 from the BTI / F 62 (hereinafter referred to as “reception intensity”), and sets the attenuation rate of the reception intensity relative to the transmission intensity. calculate. The printer application 78 further describes the relationship between the attenuation rate and the distance. The CPU 72 specifies the distance between the printer PR and the portable terminal PT1 using the calculated attenuation rate and the above relationship, and determines whether or not the specified distance is less than the threshold value. If the CPU 72 determines that the specified distance is less than the threshold (YES in S54), the process proceeds to S60, and if it is determined that the specified distance is equal to or greater than the threshold (NO in S54), S50. Return to.

  In S60, the CPU 72 unicasts a Scan_Req signal to the printer PR via the BTI / F62. Accordingly, the Scan_Req signal can be received by the printer PR (see YES in S10 of FIG. 2). In S62, the CPU 72 receives a Scan_Res signal from the printer PR via the BTI / F 62 (see S12 in FIG. 2).

  In S64, the CPU 72 transmits a Wi-Fi connection request signal including the SSID (that is, the current SSID of the printer PR) in the Scan_Res signal received in S62 to the printer PR via the Wi-Fi I / F 60. Thus, the Wi-Fi connection request signal can be received by the printer PR (see S16 in FIG. 2).

  In S66, the CPU 72 establishes a wireless connection (ie, Wi-Fi connection) via the Wi-Fi I / F 60 with the printer PR. Specifically, the CPU 72 performs communication of various signals (for example, reception of an association response signal, 4-way handshake communication, etc.) with the printer PR via the Wi-Fi I / F 60. The CPU 72 transmits network information including the SSID and password in the Scan_Res signal received in S62 to the printer PR in the course of communication of the various signals described above. If the network information is successfully authenticated by the printer PR, a Wi-Fi connection with the printer PR is established. Thus, a Wi-Fi network is formed in which the printer PR operates in the G / O state and the portable terminal PT1 operates as a legacy (see S18 in FIG. 2).

  In S70, the CPU 72 determines whether or not a print instruction operation has been performed on the portable terminal PT1 by the user. The print instruction operation includes an operation of selecting one image file from one or more image files stored in the memory 74 and an operation of selecting a button indicating execution of printing. The image file selected here is print data representing an image to be printed by the printer PR. When the print instruction operation is executed, the CPU 72 determines YES in S70 and proceeds to S72. On the other hand, when the print instruction operation is not executed until a predetermined time has elapsed after the completion of S66, or when the operation for selecting a button indicating cancellation is executed on the portable terminal PT1 by the user, It is determined NO in S70, S72 and S74 are skipped, and the process proceeds to S80.

  In S72, the CPU 72 transmits print data to the printer PR via the Wi-Fi I / F 60 using the Wi-Fi network. This allows the printer PR to print the image represented by the print data (see S22 in FIG. 2).

  In S 74, the CPU 72 stores the BT device name “NP” of the printer PR in the Scan_Res signal received in S 62 in the BT device name storage area 80. As a result, the BT device name “NP” of the established printer is stored in the BT device name storage area 80. If S74 is executed after YES is determined in S52, the BT device name “NP” is already stored in the BT device name storage area 80. In this case, the CPU 72 skips S74 and proceeds to S80.

  In S80, when the transmission of the print data to the printer PR is completed, the CPU 72 transmits a disconnection signal to the printer PR through the Wi-Fi I / F 60 using the Wi-Fi network. As a result, the Wi-Fi connection between the printer PR and the portable terminal PT1 is disconnected (see YES in S30 of FIG. 2). When S80 ends, the process returns to S50.

(Specific case)
Next, with reference to FIGS. 4 and 5, specific cases realized by the processes in FIGS. 2 and 3 will be described. 4 and 5, thick line arrows and thin line arrows between the printer PR and the portable terminals PT1 and PT2 indicate Wi-Fi communication and BT communication, respectively. This also applies to the second embodiment and later described later.

(Case A; Fig. 4)
In the initial state of case A, the printer PR is powered off. Further, the portable terminal PT1 has not established a Wi-Fi connection with the printer PR in the past. That is, the BT device name “NP” of the printer PR is not stored in the BT device name storage area 80 of the portable terminal PT1.

  In A0, the power source of the printer PR is turned on by the user. In this case, the printer PR generates the SSID “X1” at T2 (S2 in FIG. 2), and changes the BTI / F 22 to the ON state at T4 (S4). At T6, the printer PR repeats sending the Advertise signal (S6).

  In A1, an operation for activating the printer application 78 is performed on the portable terminal PT1 by the user. At this time, the distance between the printer PR and the portable terminal PT1 is equal to or greater than a threshold value (that is, 1 m). In this case, when the portable terminal PT1 receives the Advertise signal from the printer PR (YES in S50 of FIG. 3), it determines in T10 that the BT device name “NP” in the Advertise signal has not been stored (NO in S52). Further, it is determined that the distance between the printer PR and the portable terminal PT1 is equal to or greater than the threshold (NO in S54). In this case, the portable terminal PT1 does not transmit the Scan_Req signal to the printer PR (if NO in S54, the process does not proceed to S60). As a result, a Wi-Fi connection is not established between the printer PR and the portable terminal PT1.

  When the user desires the printer PR to perform printing, in A2, the user brings the portable terminal PT1 closer to the printer PR. As a result, the distance between the printer PR and the portable terminal PT1 becomes less than the threshold value. In this case, when the mobile terminal PT1 receives the Advertise signal from the printer PR (YES in S50 of FIG. 3), it determines in T12 that the BT device name “NP” in the Advertise signal has not been stored (NO in S52). Further, it is determined that the distance between the printer PR and the portable terminal PT1 is less than the threshold (YES in S54). In this case, at T20, the portable terminal PT1 transmits a Scan_Req signal to the printer PR (S60). The Scan_Req signal includes the BT device name “NP” as information indicating the transmission destination, and includes the BT device name “N1” as information indicating the transmission source.

  When receiving the Scan_Req signal from the portable terminal PT1, the printer PR transmits the Scan_Res signal to the portable terminal PT1 at T22 (YES in S10 of FIG. 2, S12). The Scan_Res signal includes the BT device name “N1” as information indicating the transmission destination and the BT device name “NP” as information indicating the transmission source. Further, the Scan_Res signal includes the SSID “X1” and the password “PS”. In T24, the printer PR changes the Wi-Fi I / F 20 to the ON state and shifts to the G / O state (S14).

  When receiving the Scan_Res signal from the printer PR (S62 in FIG. 3), the portable terminal PT1 transmits a Wi-Fi connection request signal including the SSID “X1” in the Scan_Res signal to the printer PR at T30 (S64). . When a Wi-Fi connection request signal is transmitted from the portable terminal PT1 to the printer PR, a Wi-Fi connection is established between the printer PR and the portable terminal PT1 at T32 (S18 in FIG. 2, S66 in FIG. 3). ). The printer PR receives the network information including the SSID “X1” and the password “PS” from the portable terminal PT1 in the process of T32 and executes authentication of the network information. In this case, the authentication is successful. A Wi-Fi connection is established with the portable terminal PT1. Thus, a Wi-Fi network is formed in which the printer PR operates as a master station and the mobile terminal PT1 operates as a slave station.

  In A3, a print instruction operation is executed on the portable terminal PT1 (YES in S70 of FIG. 3). In this case, the portable terminal PT1 transmits the print data to the printer PR using the Wi-Fi connection at T40 (S72), and stores the BT device name “NP” in the Scan_Res signal of T22 at T42. (S74).

  When receiving the print data from the portable terminal PT1, the printer PR executes a print process according to the print data at T44 (S22 in FIG. 2). A configuration in which the printer PR receives print data from the portable terminal PT1 using BT communication is conceivable. However, the data size of the print data may be large, and the communication speed of BT communication is slower than the communication speed of Wi-Fi communication. Therefore, if a configuration is employed in which print data is communicated using BT communication, it may take a long time to communicate print data. In contrast, in this embodiment, print data is communicated using Wi-Fi communication, so that print data can be communicated quickly.

  After transmitting the print data to the printer PR, the portable terminal PT1 transmits a disconnection signal for disconnecting the Wi-Fi connection to the printer PR at T50 (S80 in FIG. 3). Thereby, the Wi-Fi connection between the printer PR and the portable terminal PT1 is disconnected.

  After receiving the disconnect signal from the portable terminal PT1 (YES in S30 of FIG. 2), the printer PR shifts from the G / O state to the device state at T52, changes the Wi-Fi I / F 20 to the OFF state, An SSID “X2” different from the SSID “X1” is generated (S32). Since T52 is executed, the power consumption of the printer PR can be reduced.

(Case B1; FIG. 5)
Case B1 in FIG. 5 is a continuation of case A in FIG. 4, Wi-Fi I / F 20 is in the OFF state (see T52 in FIG. 4), and BTI / F 22 is in the ON state (see T4). Further, the BT device name “NP” of the printer PR that is an established printer is stored in the BT device name storage area 80 of the portable terminal PT1 (see T42).

  In A11, an operation for starting the printer application 78 is performed on the portable terminal PT1 by the user. At this time, the distance between the printer PR and the portable terminal PT1 is equal to or greater than the threshold value. When the mobile terminal PT1 receives the Advertise signal of T106 from the printer PR (YES in S50 of FIG. 3), it determines in T110 that the BT device name “NP” in the Advertise signal has been stored (YES in S52). . At T120, the portable terminal PT1 transmits a Scan_Req signal to the printer PR even though the distance between the printer PR and the portable terminal PT1 is equal to or greater than the threshold (S60).

  A13 and T122 to T152 are the same as A3 and T22 to T52 in FIG. However, it differs from Case A in that SSID “X2” is used. Further, since the portable terminal PT1 has already stored the BT device name “NP”, the process corresponding to T42 in FIG. 4 is not executed. Further, at T152, an SSID “X3” different from the SSIDs “X1” and “X2” is generated.

(Case B2)
Case B2 is a continuation of case A. The BT device name “NP” is not stored in the BT device name storage area (not shown) of the portable terminal PT2.

  In A15, an operation for starting a printer application (not shown) is executed on the portable terminal PT2 by the user. At this time, the distance between the printer PR and the portable terminal PT2 is equal to or greater than the threshold value. When receiving the T206 Advertise signal from the printer PR (YES in S50 of FIG. 3), the portable terminal PT2 determines in T210 that the BT device name “NP” in the Advertise signal has not been stored (NO in S52). Further, it is determined that the distance between the printer PR and the portable terminal PT2 is equal to or greater than the threshold (NO in S54). In this case, the portable terminal PT2 does not transmit the Scan_Req signal to the printer PR (if NO in S54, the process does not proceed to S60). As a result, a Wi-Fi connection is not established between the printer PR and the portable terminal PT2.

(Effect of this embodiment)
The portable terminal PT1 is in a state where the distance between the printer PR and the portable terminal PT1 is less than the threshold value, that is, the user wants to establish a Wi-Fi connection between the printer PR and the portable terminal PT1. When the Advertise signal is received from the printer PR in a highly likely state (T6 in FIG. 4), the Scan_Req signal is transmitted to the printer PR (T20), and the Scan_Res signal is received (T22). Accordingly, the portable terminal PT1 can establish a Wi-Fi connection with the printer PR using the network information in the Scan_Res signal, and can transmit print data to the printer PR (T30, T32, T40). Then, the portable terminal PT1 stores the BT device name “NP” of the printer PR that is an established printer (T42).

  After storing the BT device name “NP” of the printer PR, the portable terminal PT1 can receive an Advertise signal from an unconnected printer (not shown) in which a Wi-Fi connection with the portable terminal PT1 is not established. In the portable terminal PT1, the distance between the unconnected printer and the portable terminal PT1 is greater than or equal to the threshold, that is, the user desires that a Wi-Fi connection be established between the unconnected printer and the portable terminal PT1. Even if an Advertise signal is received from an unconnected printer in a state where there is a low possibility of being untouched, the Scan_Req signal is not transmitted to the unconnected printer (NO in S52 of FIG. 4, NO in S54). As a result, the portable terminal PT1 does not establish a Wi-Fi connection with the unconnected printer.

  On the other hand, when receiving the Advertise signal from the printer PR, which is an established printer (T106 in FIG. 5), the portable terminal PT1 determines that the BT device name “NP” in the Advertise signal has been stored (T110). . In this case, since the printer PR is an established printer, there is a high possibility that the user desires to re-establish a Wi-Fi connection between the printer PR and the portable terminal PT1. Accordingly, the portable terminal PT1 transmits the Scan_Req signal to the printer PR (T120) and receives the Scan_Res signal (T122) even though the distance between the printer PR and the portable terminal PT1 is equal to or greater than the threshold value. Thereby, the portable terminal PT1 can re-establish a Wi-Fi connection with the printer PR by using the network information in the Scan_Res signal, and can transmit print data to the printer PR (T130, T132, T140). . As described above, the portable terminal PT1 can establish a Wi-Fi connection with the printer PR, which is an established printer, in an appropriate situation after executing the BT communication.

  In this embodiment, the mobile terminal PT1 receives the Advertise signal (for example, T106 in FIG. 5), transmits the Scan_Req signal (T120), and the Scan_Res signal (T122) without establishing a BT logical link. Receive. Since it is not necessary to establish a BT logical link, the processing load on the portable terminal PT1 can be reduced.

(Correspondence)
The portable terminal PT1 is an example of a “second communication device”. The printer PR is an example of “first communication device” and “third communication device”. The BT device name “NP” of the printer PR is an example of “first device identification information” and “third device identification information”. The Wi-Fi method and the BT method are examples of the “first communication method” and the “second communication method”, respectively. The Wi-Fi I / F 60 and the BTI / F 62 of the portable terminal PT1 are examples of “first interface” and “second interface”, respectively. The threshold value of S54 in FIG. 3 is an example of “predetermined distance”. The Advertise signal at T106 in FIG. 5 and the Advertise signal at T6 in FIG. 4 are examples of “first predetermined signal” and “second predetermined signal”, respectively. The Scan_Req signal at T20 in FIG. 4 and the Scan_Req signal at T120 in FIG. 5 are examples of “first predetermined request” and “second predetermined request”, respectively. The SSID “X1” and the password “PS” in the Scan_Res signal of T22 in FIG. 4 are an example of “first network related information”. The Wi-Fi connection request signal of T30 and the Wi-Fi connection of T32 are examples of “first wireless connection request” and “first wireless connection”, respectively. The SSID “X2” and the password “PS” in the Scan_Res signal of T122 in FIG. 5 are an example of “second network related information”. The Wi-Fi connection request signal of T130 and the Wi-Fi connection of T132 are examples of “second wireless connection request” and “second wireless connection”, respectively.

(Second embodiment)
A description will be given centering on differences from the first embodiment. In the present embodiment, the portable terminal PT1 does not include the BT device name storage area 80. The printer PR includes a BT device name storage area 40 and can store a BT device name of a portable terminal (hereinafter referred to as “established terminal”) that has established a Wi-Fi connection with the printer PR.

(Processing of printer PR; FIG. 6)
The CPU 32 of the printer PR executes the process of FIG. 6 instead of the process of FIG. S2 to S6 are the same as in FIG. In S100, the CPU 32 monitors whether a BT connection request is received from the portable terminal via the BTI / F22. The BT connection request is a signal transmitted from the mobile terminal that has received the Advertise signal, and is a signal for requesting establishment of a BT logical link (ie, BT connection). The BT connection request is a unicast signal, and includes the BT device name “NP” of the printer PR as information indicating the transmission destination, and includes the BT device name of the portable terminal as information indicating the transmission source. When receiving the BT connection request, the CPU 32 determines YES in S100 and proceeds to S102.

  In S102, the CPU 32 transmits BT setting information to the mobile terminal via the BTI / F 22, executes pairing using the BT setting information with the mobile terminal, and establishes a BT connection with the mobile terminal. The BT setting information is information stored in advance in the memory 34 and includes various information (such as an authentication method, an encryption method, and a pass key) for establishing a BT connection.

  S104 is the same as S14 of FIG. In S110, the CPU 32 monitors whether distance information is received via the BTI / F 22 using the BT connection. The distance information is a signal repeatedly transmitted from the mobile terminal that has established the BT connection, and indicates the distance between the printer PR and the mobile terminal. The distance information indicates either “Far”, which means that the distance between the printer PR and the portable terminal is equal to or greater than the threshold value, or “Near”, which means that the distance is less than the threshold value. Here, the threshold value is a distance (for example, 3 m) smaller than the maximum distance (for example, several tens of meters) at which BT communication can be performed. The distance information is communicated using a BT connection. Accordingly, distance information is communicated by executing communication of the highest layer (that is, L2CAP) for forming a logical link and communication of higher layers (for example, Attribute Protocol, Generic Attribute Profile, etc.). The distance information is a unicast signal, and includes the BT device name “NP” of the printer PR as information indicating the transmission destination, and includes the BT device name of the portable terminal as information indicating the transmission source. If the CPU 32 receives the distance information, the CPU 32 determines YES in S110 and proceeds to S112.

  In S <b> 112, the CPU 32 determines whether or not the transmission source BT device name (that is, the BT device name of the portable terminal) in the received distance information is stored in the BT device name storage area 40. As described above, the BT device name storage area 40 stores the BT device name of the established terminal. Therefore, the determination in S112 means determining whether or not the portable terminal that is the transmission source of the distance information is an established terminal. If the CPU 32 determines that the BT device name of the transmission source is stored in the BT device name storage area 40 (YES in S112), the process proceeds to S116. On the other hand, if the CPU 32 determines that the source BT device name is not stored in the BT device name storage area 40 (NO in S112), the process proceeds to S114.

  In S114, the CPU 32 determines whether or not the distance information indicates “Near”. When determining that the distance information indicates “Near” (YES in S114), the CPU 32 proceeds to S116, and when determining that the distance information indicates “Far” (NO in S114), the CPU 32 returns to S110. .

  In S116, the CPU 32 transmits network information including the current SSID and a predetermined password to the portable terminal via the BTI / F 22 using the BT connection. The network information is transmitted by unicast communication, and includes the BT device name of the portable terminal as information indicating the transmission destination, and includes the BT device name “NP” of the printer PR as information indicating the transmission source. Subsequent S16 to S32 are the same as in FIG. In S120 after S22, the CPU 32 stores the BT device name of the mobile terminal in the distance information received in S110 in the BT device name storage area 40. As a result, the BT device name of the established terminal is stored in the BT device name storage area 40. If the BT device name in the distance information is already stored in the BT device name storage area 40, S120 is skipped.

(Processing of portable terminal PT1; FIG. 7)
CPU72 of portable terminal PT1 replaces the process of FIG. 3, and performs the process of FIG. S50 is the same as FIG. In S150, the CPU 72 transmits a BT connection request to the printer PR via the BTI / F 62 (see YES in S100 of FIG. 6). In S152, the CPU 72 receives BT setting information from the printer PR via the BTI / F 62, executes pairing using the BT setting information with the printer PR, and establishes a BT connection with the printer PR ( (See S102 in FIG. 6).

  In S154, the CPU 72 starts transmission processing for transmitting distance information to the printer PR via the BTI / F 62 using the BT connection (see YES in S110 of FIG. 6). The method for specifying the distance between the printer PR and the portable terminal PT1 is the same as in the first embodiment.

  In S160, the CPU 72 monitors reception of network information including the current SSID and a predetermined password from the printer PR via the BTI / F 62 using the BT connection. When the network information is received, the CPU 72 determines YES in S160, and proceeds to S64. S64 to S80 are the same as those in FIG. However, in this embodiment, S74 in FIG. 3 is not executed.

(Case C: Fig. 8)
Next, specific cases realized by the processes in FIGS. 6 and 7 will be described with reference to FIGS. The initial state of case C in FIG. 8 is the same as the initial state of case A in FIG. The contents of case C will be described focusing on the differences from case A in FIG. A0, A1, T2 to T6 are the same as those in FIG.

  When receiving the Advertise signal from the printer PR, the portable terminal PT1 transmits a BT connection request to the printer PR at T13 regardless of the distance between the printer PR and the portable terminal PT1 (S150 in FIG. 7).

  When receiving a BT connection request from the portable terminal PT1, the printer PR establishes a BT connection with the portable terminal PT1 at T14 (YES in S100 of FIG. 6, S102). T15 is the same as T24 in FIG.

  At T16, the portable terminal PT1 transmits distance information to the printer PR using BT connection (S154 in FIG. 7). At this time, the distance between the printer PR and the portable terminal PT1 is equal to or greater than the threshold value. Therefore, the distance information indicates “Far”.

  When receiving the distance information of T16 from the portable terminal PT1, the printer PR determines that the BT device name “N1” in the distance information has not been stored in T16A (NO in S112 of FIG. 6), and further the distance It is determined that the information indicates “Far” (NO in S114). In this case, the printer PR does not transmit the network information to the portable terminal PT1 (if NO in S114, the printer PR does not proceed to S116). As a result, a Wi-Fi connection is not established between the printer PR and the portable terminal PT1.

  When the user desires the printer PR to perform printing, in A2, the user brings the portable terminal PT1 closer to the printer PR. As a result, the distance between the printer PR and the portable terminal PT1 becomes less than the threshold value. In this case, at T18, the portable terminal PT1 transmits distance information indicating “Near” to the printer PR using the BT connection (S154 in FIG. 7).

  When the printer PR receives the distance information of T18 from the portable terminal PT1, it determines that the BT device name “N1” of the portable terminal PT1 in the distance information has not been stored in T18A (NO in S112 of FIG. 6). Further, it is determined that the distance information indicates “Near” (YES in S114). In this case, in T19, the printer PR transmits network information including the SSID “X1” and the password “PS” to the portable terminal PT1 (S116). T30 to T52 except T45 are the same as those in FIG. However, T42 in FIG. 4 is not executed. In T45, the printer PR stores the BT device name “N1” in the distance information of T18 (S120).

(Case D1; FIG. 9)
Case D1 in FIG. 9 is a continuation of case C in FIG. 8, Wi-Fi I / F 20 is in an OFF state (see T52 in FIG. 8), and BTI / F 22 is in an ON state (see T4). The BT device name storage area 40 of the printer PR stores the BT device name “N1” of the portable terminal PT1 that is an established terminal (see T45).

  A11 and T106 to T116 are the same as A1 and T6 to T16 in FIG. When the printer PR receives the distance information of T116 from the portable terminal PT1 (that is, distance information indicating “Far”), the printer PR determines that the BT device name “N1” in the distance information has been stored in T116A ( YES in S112 of FIG. In this case, in T119, the printer PR transmits network information including the SSID “X2” and the password “PS” to the portable terminal PT1 even though the distance between the printer PR and the portable terminal PT1 is equal to or greater than the threshold. (S116). A13 and T130 to T152 are the same as those in FIG.

(Case D2)
Case D2 is a continuation of case C. The BT device name “N2” of the portable terminal PT2 is not stored in the BT device name storage area 40 of the printer PR. T106 to T115 are the same as Case D1 except that the portable terminal PT2 is used instead of the portable terminal PT1.

  When receiving the distance information of T216 from the portable terminal PT2, the printer PR determines that the BT device name “N2” in the distance information is not stored in the BT device name storage area 40 in T216A (NO in S112). Further, it is determined that the distance information indicates “Far” (NO in S114). In this case, the printer PR does not transmit the network information to the portable terminal PT2 (in the case of NO in S114, the printer PR does not proceed to S116). As a result, a Wi-Fi connection is not established between the printer PR and the portable terminal PT2.

(Effect of this embodiment)
The printer PR may be in a state where the distance between the printer PR and the portable terminal PT1 is less than the threshold value, that is, the user wants to establish a Wi-Fi connection between the printer PR and the portable terminal PT1. Network information is transmitted to the portable terminal PT1 in a state with high performance (T19 in FIG. 8). Accordingly, the printer PR can establish a Wi-Fi connection with the portable terminal PT1 and can receive print data from the portable terminal PT1 (T30, T32, T40). Then, the printer PR stores the BT device name “N1” of the portable terminal PT1, which is an established terminal (T45).

  After storing the BT device name “N1”, the printer PR receives distance information from the portable terminal PT2 which is an unconnected terminal with which the Wi-Fi connection with the printer PR is not established (T216 in case D2 in FIG. 9). ). The printer PR wants a state where the distance between the printer PR and the unconnected terminal (that is, the portable terminal PT2) is equal to or greater than the threshold value, that is, the user establishes a Wi-Fi connection with the unconnected terminal. Even if the distance information is received from the unconnected terminal in a state where the possibility is low, the network information is not transmitted to the unconnected terminal (NO in S112 of FIG. 6, NO in S114). As a result, the printer PR does not establish a Wi-Fi connection with the portable terminal PT2 that is an unconnected terminal.

  On the other hand, when receiving the distance information from the portable terminal PT1 (T116 in case D1 in FIG. 9), the printer PR determines that the BT device name “N1” in the distance information has already been stored (T116A). In this case, since the portable terminal PT1 is an established terminal, there is a high possibility that the user desires to re-establish a Wi-Fi connection between the printer PR and the portable terminal PT1. Accordingly, the printer PR transmits network information to the printer PR even though the distance between the printer PR and the portable terminal PT1 is equal to or greater than the threshold (T119). Accordingly, the printer PR can establish a Wi-Fi connection with the portable terminal PT1, and can receive print data from the portable terminal PT1 (T130, T132, T140). In this way, after executing the BT communication, the printer PR can establish a Wi-Fi connection with the portable terminal PT1 that is an established terminal in an appropriate situation.

(Correspondence)
The printer PR is an example of a “first communication device”. The portable terminal PT1 is an example of a “second communication device” and a “third communication device”. The BT device name “N1” of the portable terminal PT1 is an example of “second device identification information” and “third device identification information”. The Wi-Fi I / F 20 and BTI / F 22 of the printer PR are examples of “first interface” and “second interface”, respectively. The threshold value (for example, 3 m) between “Near” and “Far” included in the distance information in S154 of FIG. 7 is an example of “predetermined distance”. The Advertise signal is an example of a “predetermined signal”. The distance information of T16 (or T18) in FIG. 8 is an example of “first distance information”, and the distance information of T116 in FIG. 9 is an example of “specific information” and “second distance information”. . The network information of T19 in FIG. 8 and the network information of T119 in FIG. 9 are examples of “first network relation information” and “second network relation information”, respectively.

(Third embodiment)
The description will focus on the differences from the first and second embodiments. As shown in FIG. 1, the printer PR includes an NFC I / F 24 for executing wireless communication (hereinafter referred to as “NFC communication”) according to the NFC method. The NFC I / F 24 includes a memory 26. In addition, the portable terminals PT1 and PT2 each include an NFC I / F 64. In the present embodiment, the portable terminal PT1 includes the BT device name storage area 80, and the printer PR does not include the BT device name storage area 40.

  The NFC method is a wireless communication method for so-called short-range wireless communication, for example, a wireless communication method based on the international standard of ISO / IEC21481 or 18092. The communication speed of NFC communication (for example, the maximum communication speed is 424 Kbps) is slower than the communication speed of BT communication (for example, the maximum communication speed is 24 Mbps). The frequency of the carrier wave (for example, 13.56 MHz band) in NFC communication is the frequency of the carrier wave (for example, 2.4 GHz band or 5.0 GHz band) in Wi-Fi communication and the frequency of the carrier wave in BT communication (for example, 2.4 GHz band). Is different. Moreover, the maximum distance (for example, about 10 cm) at which NFC communication can be performed is smaller than the maximum distance (for example, about several tens of meters) at which BT communication can be performed.

(Processing of printer PR; FIG. 10)
The CPU 32 of the printer PR executes the process of FIG. 10 instead of the process of FIG. S2 is the same as FIG. In S200, the CPU 32 changes the BTI / F 22 from the OFF state to the ON state, and further changes the NFC I / F 24 from the OFF state to the ON state (that is, power is supplied to the NFC I / F 24). In S202, the CPU 32 supplies the SSID generated in S2 and a predetermined password to the NFC I / F 24. As a result, the current SSID and the predetermined password are stored in the memory 26 of the NFC I / F 24. S6 is the same as FIG. The CPU 32 repeats sequentially executing the monitoring processes of S210 and S212.

  In S210, the CPU 32 monitors whether a communication link (hereinafter referred to as “NFC link”) via the NFC I / F 24 is established. When acquiring information indicating that the NFC link has been established from the NFC I / F 24, the CPU 32 determines YES in S210 and proceeds to S14. S14 to S18 are the same as in FIG. In S <b> 220, the CPU 32 transmits the BT device name “NP” of the printer PR to the portable terminal via the Wi-Fi I / F 20 using the Wi-Fi connection.

  In S212, the CPU 32 monitors whether a Scan_Req signal is received from the portable terminal via the BTI / F22. When receiving the Scan_Req signal, the CPU 32 determines YES in S212 and proceeds to S12. S12 to S18 are the same as in FIG.

  S20 to S32 are the same as in FIG. In S240, the CPU 32 supplies the SSID generated in S32 and a predetermined password to the NFC I / F 24. As a result, the predetermined password in the memory 26 of the NFC I / F 24 is not changed, but the current SSID in the memory 26 is changed.

(Processing of portable terminal PT1; FIG. 11)
The CPU 72 of the portable terminal PT1 executes the process of FIG. 11 instead of the process of FIG. CPU72 repeats performing each monitoring process of S50 and S250 sequentially. S52 to S80 after YES in S50 and S50 are the same as in FIG. However, in the present embodiment, the process of S54 of FIG. 3 is not executed, and the process of S74 of FIG. 3 is not executed when S50 is YES.

  In S250, the CPU 72 monitors that a communication link (that is, an NFC link) via the NFC I / F 64 is established. When acquiring information indicating that the NFC link has been established from the NFC I / F 64, the CPU 72 determines YES in S250 and proceeds to S64. S64 and S66 are the same as in FIG. In S260, the CPU 72 receives the BT device name “NP” from the printer PR via the Wi-Fi I / F 60 using the Wi-Fi connection (see S220 in FIG. 10). S70 to S80 after S260 are the same as those in FIG. However, in S 74, the CPU 72 stores the BT device name “NP” received in S 260 by Wi-Fi communication in the BT device name storage area 80.

(Case E: Fig. 12)
Next, specific cases realized by the processes in FIGS. 10 and 11 will be described with reference to FIGS. 12 and 13. In FIGS. 12 and 13, thick line arrows, thin line arrows, and broken line arrows between the printer PR and the portable terminals PT1 and PT2 indicate Wi-Fi communication, BT communication, and NFC communication, respectively. This is the same in the fourth embodiment described later. The initial state of case E in FIG. 12 is the same as the initial state of case A in FIG. The contents of case E will be described focusing on the differences from case A in FIG.

  When the power is turned on by the user (A0), the printer PR generates SSID “X1” at T302 (S2 in FIG. 10), and at T304, each of the BTI / F22 and NFCI / F24 is turned on. In step S305, the SSID “X1” and the password “PS” are supplied to the NFC I / F 24. A1 and T306 are the same as A1 and T6 in FIG.

  When receiving the Advertise signal from the printer PR, the portable terminal PT1 determines that the BT device name “NP” in the Advertise signal has not been stored in T310 (NO in S52 of FIG. 11). In this case, the portable terminal PT1 does not transmit the Scan_Req signal to the printer PR (if NO in S54, the process does not proceed to S60). As a result, a Wi-Fi connection is not established between the printer PR and the portable terminal PT1.

  When the user desires the printer PR to perform printing, in A2, the user brings the portable terminal PT1 closer to the printer PR. As a result, the distance between the printer PR and the portable terminal PT1 becomes less than the maximum distance (for example, 10 cm) at which NFC communication can be performed. In this case, an NFC link is established between the printer PR and the portable terminal PT1.

  The SSID “X1” and the password “PS” are stored in the memory 26 of the NFC I / F 24 of the printer PR (T305). Then, when the NFC I / F 24 is established, the NFC I / F 24 transmits the SSID “X1” and the password “PS” in the memory 26 to the portable terminal PT1 at T320 without receiving an instruction from the CPU 32 of the control unit 30. To do. T324, T330, and T332 are the same as T24, T30, and T32 in FIG. 4 (YES in S210 in FIG. 10, S14 to S18, YES in S250 in FIG. 11, S64, and S66). In T334, the printer PR transmits the BT device name “NP” to the portable terminal PT1 using the Wi-Fi connection (S220 in FIG. 10).

  A3, T340 to T352 are the same as A3, T40 to T52 in FIG. However, at T342, the portable terminal PT1 stores the BT device name “NP” received from the printer PR by the Wi-Fi communication at T334 (S74 in FIG. 11). In T354, the printer PR supplies the SSID “X2” and the password “PS” to the NFC I / F 24 (S240 in FIG. 10).

(Case F1; FIG. 13)
Case F1 in FIG. 13 is a continuation of case E in FIG. 12, Wi-Fi I / F 20 is in an OFF state (see T352 in FIG. 12), and BTI / F 22 and NFC I / F 24 are in an ON state (see T304). ). Further, the BT device name “NP” of the printer PR which is an established printer is stored in the BT device name storage area 80 of the portable terminal PT1 (see T342).

  A11 and A13 are the same as in FIG. 5, and T406 to T452 are the same as T106 to T152 in FIG. 5 (YES in S212 in FIG. 10, S12 to S18, S30 to S32, YES in S50 in FIG. YES in S52, S60 to S80). In T454, the printer PR supplies the SSID “X3” and the password “PS” to the NFC I / F 24 (S240 in FIG. 10).

(Case F2)
Case F2 is a continuation of case E. The BT device name “NP” of the printer PR is not stored in the BT device name storage area (not shown) of the portable terminal PT2.

  A15 is the same as FIG. When receiving the Advertise signal of T506 from the printer PR (YES in S50 of FIG. 11), the portable terminal PT2 determines in T510 that the BT device name “NP” in the Advertise signal has not been stored (NO in S52). ). In this case, the portable terminal PT2 does not transmit the Scan_Req signal to the printer PR (if NO in S52, the process does not proceed to S60). As a result, a Wi-Fi connection is not established between the printer PR and the portable terminal PT2.

(Effect of this embodiment)
Also in the present embodiment, like the first embodiment, the portable terminal PT1 can establish a Wi-Fi connection with the printer PR, which is an established printer, in an appropriate situation after executing the BT communication. Also, since the portable terminal PT1 does not need to establish a BT logical link, the processing load on the portable terminal PT1 can be reduced.

(Correspondence)
The BT method and the NFC method are examples of the “first type communication method” and the “second type communication method”, respectively. The BTI / F 62 and the NFC I / F 64 of the portable terminal PT1 are examples of “first type interface” and “second type interface”, respectively. The maximum distance (for example, 10 cm) at which NFC communication can be performed is an example of the “predetermined distance”. The SSID “X1” and the password “PS” of T320 in FIG. 12 are an example of “first network related information”. The SSID “X2” and the password “PS” in the Scan_Res signal of T422 in FIG. It is an example of “second network related information”.

(Fourth embodiment)
The description will focus on the differences from the third embodiment. In the present embodiment, the printer PR includes the BT device name storage area 40, and the portable terminal PT1 does not include the BT device name storage area 80.

(Processing of printer PR; FIG. 14)
The CPU 32 of the printer PR executes the process of FIG. 14 instead of the process of FIG. S2, S200, S202, S6, S210, and S212 are the same as those in FIG. S14 to S18 after YES in S210 are the same as those in FIG. In S221 after S18, the CPU 32 receives the BT device name of the mobile terminal from the mobile terminal via the Wi-Fi I / F 20 using the Wi-Fi connection.

  In S213 after YES in S212, the CPU 32 determines whether or not the BT device name of the transmission source in the Scan_Req signal is stored in the BT device name storage area 40. S12 to S18 after YES in S213 are the same as in FIG. S20 to S32 and S240 are the same as those in FIG. In S230, the CPU 32 stores the BT device name received in S221 in the BT device name storage area 40.

(Processing of portable terminal PT1; FIG. 11)
The CPU 72 of the portable terminal PT1 executes the process of FIG. 11, but S260 is different from the third embodiment. In S260, the CPU 72 of the portable terminal PT1 transmits the BT device name “N1” of the portable terminal PT1 to the printer PR via the Wi-Fi I / F 60 using the Wi-Fi connection (see S221 in FIG. 14). ). In this embodiment, S52 and S74 are not executed.

(Case E: Fig. 12)
Next, specific cases realized by the processes in FIGS. 11 and 14 will be described with reference to FIGS. 12 and 15. In case E of FIG. 12, T334 is not executed, and T336 is executed instead. At T336, the mobile terminal PT1 transmits the BT device name “N1” of the mobile terminal PT1 to the printer PR using Wi-Fi connection (S260 in FIG. 11). Further, T342 is not executed, and T345 is executed instead. In T345, the printer PR stores the BT device name “N1” received from the portable terminal PT1 by Wi-Fi communication in T336 (S230 in FIG. 14).

(Case G1; FIG. 15)
A case G1 in FIG. 15 is a continuation of case E in FIG. The BT device name storage area 40 of the printer PR stores the BT device name “N1” of the portable terminal PT1, which is an established terminal (see T345 in FIG. 12). The case G1 will be described focusing on differences from the case F1 in FIG.

  A11 and T406 to T420 are the same as those in FIG. In T421, the printer PR determines that the BT device name “N1” in the Scan_Req signal has been stored (YES in S213 in FIG. 14). In this case, at T422, the printer PR transmits a Scan_Res signal including the SSID “X2” and the password “PS” to the portable terminal PT1 even though the distance between the printer PR and the portable terminal PT1 is equal to or greater than the threshold value. (S12). A13 and T424 to T454 are the same as those in FIG.

(Case G2)
Case G2 is a continuation of case E. The BT device name “N2” of the portable terminal PT2 is not stored in the BT device name storage area 40 of the printer PR.

  When the mobile terminal PT2 receives the Advertise signal of T506 from the printer PR after the operation of A15 is executed (YES in S50 of FIG. 11), the distance between the printer PR and the mobile terminal PT2 is determined at T520. The Scan_Req signal is transmitted to the printer PR even though it is equal to or greater than the threshold value.

  When receiving the Scan_Req signal from the portable terminal PT2, the printer PR determines that the BT device name “N2” in the Scan_Req signal has not been stored in T521 (NO in S213 of FIG. 14). In this case, the printer PR does not transmit the SSID “X2” or the like to the portable terminal PT2 (in the case of NO in S213, the printer PR does not proceed to S12). As a result, a Wi-Fi connection is not established between the printer PR and the portable terminal PT2.

(Effect of this embodiment)
Also in this embodiment, as in the second embodiment, the printer PR can establish a Wi-Fi connection with the printer PR, which is an established printer, in an appropriate situation after executing the BT communication. Further, since the printer PR does not need to establish a BT logical link, the processing load on the printer PR can be reduced.

(Correspondence)
The BTI / F 22 and NFC I / F 24 of the printer PR are examples of “first type interface” and “second type interface”, respectively. The maximum distance (for example, 10 cm) at which NFC communication can be performed is an example of the “predetermined distance”. The Scan_Req signal at T420 in FIG. 15 is an example of “predetermined request” and “specific information”. Further, the Scan_Res signal of T422 is an example of “response”. The SSID “X1” and the password “PS” of T320 in FIG. 12 are an example of “first network related information”, and the SSID “X2” and the password “PS” in the Scan_Res signal of T422 in FIG. It is an example of “second network related information”.

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

(Modification 1) Instead of executing S60 and S62 of FIG. 3 or FIG. 11, the portable terminal PT1 transmits a BT connection request to the printer PR, establishes the BT connection with the printer PR, and then establishes the BT connection. The SSID and password may be received from the printer PR. In this modification, the BT connection request is an example of a “first predetermined request” and a “second predetermined request”. Generally speaking, the “first (or second) predetermined request” and “first (or second) network-related information” are the same as those in the first and third embodiments described above. Communication may be performed without executing communication of the highest layer for establishing a logical link of a communication method, or communication may be performed using a logical link as in this modification.

(Modification 2) When the portable terminal PT1 repeatedly transmits the Advertise signal, the printer PR does not have to execute S6 of FIG. In this case, when receiving the Advertise signal from the portable terminal PT1, the printer PR may determine whether or not the BT device name “N1” of the portable terminal PT1 in the Advertise signal has already been stored. When the printer PR determines that the BT device name “N1” has already been stored, the printer PR may execute the processing from S116 onward. When the printer PR determines that the BT device name “N1” has not been stored, the printer PR identifies the distance between the printer PR and the portable terminal PT1 based on the radio field intensity of the received Advertise signal, It may be determined whether the distance is less than a threshold value. If the printer PR determines that the specified distance is less than the threshold value, the printer PR executes the process from S116 onward. If the printer PR determines that the specified distance is greater than or equal to the threshold value, the printer PR executes the process on and after S116. You don't have to. In S116, the network information may be transmitted without establishing the BT connection, or the network information may be transmitted after the BT connection is established. In this modification, the Advertise signal is an example of “specific information”, and the “predetermined signal transmission unit” and the “distance information reception unit” can be omitted.

(Modification 3) When the portable terminal PT1 repeatedly transmits the Advertise signal, the printer PR does not have to execute S6 of FIG. In this case, when receiving the Advertise signal from the portable terminal PT1, the printer PR may determine whether or not the BT device name “N1” of the portable terminal PT1 in the Advertise signal has already been stored. When the printer PR determines that the BT device name “N1” has already been stored, the printer PR executes the processes after S12. When the printer PR determines that the BT device name “N1” has not been stored, the printer PR performs the processes after S12. It is not necessary to execute. In S12, the network information may be transmitted without establishing the BT connection, or the network information may be transmitted after the BT connection is established. In this modification, the Advertise signal is an example of “specific information” and “predetermined request”.

(Modification 4) The mobile terminal PT1 may receive the BT device name “NP” from the printer PR by NFC communication without executing S260 of the third embodiment of FIG. That is, in the “device identification information receiving process”, the first device identification information may be received via the first interface as in the third embodiment, or the first device identification information may be received as in the present modification. You may receive 1st apparatus identification information via 2 interfaces (especially 2nd type interface).

(Modification 5) The printer PR may receive the BT device name “N1” from the portable terminal PT1 by NFC communication without executing S221 of FIG. That is, the “device identification information receiving unit” may receive the second device identification information via the first interface as in the fourth embodiment, or the second device identification information as in the present modification. You may receive 2nd apparatus identification information via 2 interfaces (especially 2nd type interface).

(Modification 6) In each of the above embodiments, the SSID and the password are transmitted from the printer PR to the portable terminal PT1 (for example, S12 in FIG. 2). Instead, the printer PR transmits the SSID to the portable terminal PT1, but does not have to transmit the password to the portable terminal PT1. In this case, a password input screen is displayed on the mobile terminal PT1, and the password is input to the mobile terminal PT1 by the user. In the present modification, only the SSID is an example of “first (or second) network-related information”.

(Modification 7) The BTI / F 22 of the printer PR may include a CPU and a memory. The memory of the BTI / F 22 may store a program. The CPU of the BTI / F 22 may be able to execute the operations of the above embodiments according to the program in the memory of the BTI / F 22 without receiving an instruction from the CPU 32 in the control unit 30. Generally speaking, the “first communication device” includes two or more processors (for example, the CPU 32 in the control unit 30 of the printer PR and the CPU in the BTI / F 22) and two or more memories (for example, the control unit). 30, and a memory in the BTI / F 22), and each processor may execute processing according to each program stored in each memory.

(Modification 8) In the third and fourth embodiments, in S202 and S240 of FIGS. 10 and 14, the CPU 32 of the printer PR supplies the current SSID and password to the NFC I / F 24 and the memory 26 of the NFC I / F 24. To store these information. As a result, the NFC I / F 24 can transmit the current SSID and password to the portable terminal without receiving an instruction from the control unit 30 (that is, the CPU 32) when the NFC link with the portable terminal is established. Instead, the NFC I / F 24 notifies the control unit 30 (that is, the CPU 32) that the NFC link has been established when the NFC link with the mobile terminal is established, and the current SSID and password are transmitted from the control unit 30. The information may be acquired and transmitted to the mobile terminal. Generally speaking, the “first network-related information transmission unit” may transmit the first network-related information to the second communication device via the second type interface.

(Modification 9) In each embodiment, the printer PR changes the Wi-Fi I / F 20 to the OFF state, for example, in S32 of FIG. Alternatively, the Wi-Fi I / F 20 may always be kept on while the printer PR is powered on.

(Modification 10) The printer PR may not support WFD, but may support so-called SoftAP instead. In this case, for example, the printer PR activates SoftAP in S14 of FIG. 2, and stops SoftAP in S32.

(Modification 11) The “device identification information” may not be a BT device name such as the printer PR or the portable terminal PT1, but may be other identification information (for example, a MAC address, an IP address, etc.).

(Modification 12) The “first interface” does not have to be an I / F for executing Wi-Fi communication, but for executing wireless communication according to another communication method capable of constructing a wireless LAN. It may be I / F. In addition, the “second interface” may not be an I / F for executing BT communication. For example, another communication method (for example, TransferJet (registered trademark)) that can execute short-range wireless communication is used. It may be an I / F for executing the following wireless communication.

(Modification 13) The “first communication device” may not be the printer PR, and may be a scanner, for example. In this case, for example, instead of receiving print data from the portable terminal PT1 in S20 of FIG. 2, the scanner may transmit scan data generated by scanning a document to the portable terminal PT1. Further, the “first communication device” may be a device (for example, a copier, a facsimile, a telephone, a PC, a server, a portable terminal, etc.) different from the printer and the scanner. Further, the “second communication device” may not be a portable terminal, but may be other devices (for example, a printer, a scanner, a copier, a facsimile, a telephone, a desktop PC, a server, etc.).

(Modification 14) In each embodiment, the CPU 32 of the printer PR and the CPU 72 of the portable terminal PT1 execute programs (that is, software), thereby realizing the processes shown in FIGS. Instead, at least one of the processes in FIGS. 2 to 15 may be realized by hardware such as a logic circuit.

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

  2: communication system, PR: printer, 12: operation unit, 14: display unit, 16: print execution unit, 20: Wi-Fi I / F (interface), 22: BTI / F, 24: NFC I / F, 26: Memory, 30: Control unit, 32: CPU, 34: Memory, 36: Program, 40: BT device name storage area, PT1, PT2: Portable terminal, 52: Operation unit, 54: Display unit, 60: Wi-FiI / F, 62: BTI / F, 64: NFC I / F, 70: Control unit, 72: CPU, 74: Memory, 76: OS program, 78: Printer application, 80: BT device name storage area

The first communication device disclosed in this specification includes a first interface for performing wireless communication according to the first communication method, and a second communication method different from the first communication method. A second interface for executing the wireless communication according to the first communication device and the second communication device when the second identification information is not stored in the memory of the first communication device; A first network that transmits first network-related information related to the first wireless network to the second communication device via the second interface in a state where the distance between the two is less than a predetermined distance It is a relationship information transmitting unit, wherein the first wireless network is a network for executing wireless communication via the first interface. A first connection request receiving unit that receives a first wireless connection request from the second communication device that has received the first network-related information via the first interface; and In response to receiving the first wireless connection request from the communication device, the first wireless connection via the first interface is used for the second communication using the first network related information. A first establishing unit that forms the first wireless network to which both the first communication device and the second communication device belong, and the second communication device; An identification information receiving unit that receives second identification information; and the second identification information is received from the second communication device and the second wireless network is formed. Store identification information in the memory And a storage control unit configured to receive the specific information including the third identification information from the third communication device via the second interface after the second identification information is stored in the memory. An information receiving unit; an identification information judging unit for judging whether or not the third identification information in the specific information matches the second identification information in the memory; and When it is determined that it matches the second identification information, the second network-related information related to the second wireless network matches the third communication device via the second interface. The second network related information is not transmitted to the third communication device when it is determined that the third identification information does not match the second identification information. Network An information transmission unit, wherein the second wireless network is a network for performing wireless communication via the first interface, and the second network related information is the first network related information. And receiving a second wireless connection request via the first interface from the second network relation information transmitting unit and the second communication device that has received the second network relation information. A second connection request receiving unit that receives the second wireless connection request from the second communication device, and uses the second network relation information to change the first interface. A second wireless connection via the second communication device and the second wireless network to which both the first communication device and the second communication device belong. A second establishing unit for forming a may be provided.
The present specification also discloses a computer program for the second communication device. The second communication device executes a first interface for performing wireless communication according to the first communication method, and wireless communication according to a second communication method different from the first communication method. The computer program is not stored in the memory of the second communication device in the following processes, that is, the first identification information is stored in the memory of the second communication device. In this case, the first wireless communication device is connected to the first wireless device from the first communication device via the second interface in a state where the distance between the first communication device and the second communication device is less than a predetermined distance. A first network-related information reception process for receiving first network-related information related to a network, wherein the first wireless network is wireless via the first interface. Via the first interface in response to receiving the first network-related information receiving process, which is a network for executing communication, and the first network-related information from the first communication device. A first connection request transmission process for transmitting a first wireless connection request to the first communication device, and transmitting the first wireless connection request to the first communication device, Establishing a first wireless connection via the first interface with the first communication device using the first network related information, and the first communication device and the second communication device A first establishment process for forming the first wireless network to which both belong to, an identification information reception process for receiving the first identification information from the first communication apparatus, and the first communication apparatus To the above When the first identification information is received and the first wireless network is formed, a storage control process for storing the first identification information in the memory and the first identification information stored in the memory And a first predetermined signal receiving process for receiving a first predetermined signal including third identification information from the third communication device via the second interface, and the first predetermined signal. An identification information determination process for determining whether or not the third identification information in the memory matches the first identification information in the memory; and the third identification information matches the first identification information If determined, a first predetermined request for requesting network-related information related to a wireless network is sent to the first communication device that matches the third communication device via the second interface. Send A first predetermined request transmission process that does not transmit the first predetermined request to the third communication device when it is determined that the third identification information does not match the first identification information; Second network related information related to the second wireless network from the first communication device via the second interface in response to transmitting one predetermined request to the first communication device. In which the second wireless network is a network for performing wireless communication via the first interface, and the second network related information is: The second network relation information receiving process, which is different from the first network relation information, and the second network relation information is received from the first communication device. In response, a second connection request transmission process for transmitting a second wireless connection request to the first communication device via the first interface, and the second wireless connection request for the first wireless connection request. A second wireless connection via the first interface is established with the first communication device using the second network related information in response to transmitting to the first communication device, and A second establishment process for forming the second wireless network to which both the first communication device and the second communication device belong may be executed.
Further, another first communication device disclosed in the present specification includes a first interface for executing wireless communication according to the first communication method, and a second interface different from the first communication method. In a state where the distance between the second interface for executing wireless communication in accordance with the communication method and the distance between the first communication device and the second communication device is less than a predetermined distance, A first network-related information transmitting unit that transmits first network-related information related to the first wireless network to the second communication device via the first wireless network, wherein the first wireless network A first network-related information transmitting unit that is a network for performing wireless communication via one interface; and the second communication that has received the first network-related information. A first connection request receiving unit that receives a first wireless connection request from a device via the first interface, and a response to receiving the first wireless connection request from the second communication device. Then, using the first network-related information, a first wireless connection via the first interface is established with the second communication device, and the first communication device and the second communication device are established. The first establishment unit forming the first wireless network to which both communication devices belong and second device identification information for identifying the second communication device from the second communication device. A device identification information receiving unit for receiving, a storage control unit for storing the second device identification information in a memory of the first communication device, and after the second device identification information is stored in the memory, 3 communication devices, the second device A specific information receiving unit that receives specific information including third device identification information for identifying the third communication device via the interface, and the third device identification information in the specific information is An identification information determination unit that determines whether or not the second device identification information in the memory matches, and when it is determined that the third device identification information matches the second device identification information, Via the second interface, the second network related information related to the second wireless network is transmitted to the second communication device matching the third communication device, and the third device identification information is A second network-related information transmitting unit that does not transmit the second network-related information to the third communication device when it is determined not to match the second device-identifying information; Wireless network The network is a network for executing wireless communication via the first interface, and the second network relation information is different from the first network relation information, and the second network relation information is transmitted. A second connection request receiving unit that receives a second wireless connection request from the second communication device that has received the second network-related information via the first interface; In response to receiving the second wireless connection request from the second communication device, the second wireless connection via the first interface is performed using the second network related information. A second establishing unit that establishes with the communication device and forms the second wireless network to which both the first communication device and the second communication device belong.

The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.
(Item 1)
A first communication device,
A first interface for executing wireless communication according to the first communication method;
A second interface for executing wireless communication according to a second communication method different from the first communication method;
In a state where the distance between the first communication device and the second communication device is less than a predetermined distance, the first network related information related to the first wireless network is obtained via the second interface. A first network-related information transmitting unit configured to transmit to the second communication device, wherein the first wireless network is a network for executing wireless communication via the first interface; 1 network-related information transmitter,
A first connection request receiving unit that receives a first wireless connection request from the second communication device that has received the first network-related information via the first interface;
In response to receiving the first wireless connection request from the second communication device, the first wireless connection via the first interface is made using the first network related information. A first establishing unit that establishes the first wireless network to which both the first communication device and the second communication device belong;
A device identification information receiving unit for receiving second device identification information for identifying the second communication device from the second communication device;
A storage control unit for storing the second device identification information in a memory of the first communication device;
After the second device identification information is stored in the memory, third device identification information for identifying the third communication device is transmitted from the third communication device via the second interface. A specific information receiving unit for receiving specific information including;
An identification information determination unit that determines whether the third device identification information in the specific information matches the second device identification information in the memory;
When it is determined that the third device identification information matches the second device identification information, the second network related information related to the second wireless network is obtained via the second interface. If the third device identification information is determined not to match the second device identification information, the second network related information is transmitted to the second communication device matching the third communication device. A second network-related information transmitting unit that does not transmit to the third communication device, wherein the second wireless network is a network for performing wireless communication via the first interface; The network relation information of 2 is different from the first network relation information, the second network relation information transmission unit,
A second connection request receiving unit that receives a second wireless connection request from the second communication device that has received the second network-related information via the first interface;
In response to receiving the second wireless connection request from the second communication device, the second wireless connection via the first interface is established using the second network related information. A second establishing unit that establishes the second wireless network to which both the first communication device and the second communication device belong,
A first communication device comprising:
(Item 2)
The first communication device further includes:
Without executing communication of the highest layer for establishing a logical link of the second communication method, communication of a lower layer that is lower than the highest layer is executed, and via the second interface A predetermined signal transmission unit that repeats transmitting the predetermined signal,
The first communication device according to item 1, wherein the specific information receiving unit receives the specific information from the third communication device that has received the predetermined signal via the second interface.
(Item 3)
The first communication device further includes:
A distance information receiving unit that receives first distance information related to the distance between the first communication device and the second communication device from the second communication device via the second interface. With
The first network-related information transmitting unit is
When the first distance information indicates that the distance between the first communication device and the second communication device is less than the predetermined distance, the first distance information is sent via the second interface. 1 network-related information to the second communication device,
When the first distance information indicates that the distance between the first communication device and the second communication device is greater than the predetermined distance, the first network related information is set to the second network information. Do not send to communication equipment,
The specific information receiving unit receives second distance information related to a distance between the first communication device and the third communication device from the third communication device via the second interface. The first communication device according to Item 1 or 2, wherein the specific information is received.
(Item 4)
The distance information receiving unit uses the logical link of the second communication method established between the first communication device and the second communication device, from the second communication device, Receiving the first distance information via a second interface;
The specific information receiving unit uses the logical link of the second communication method established between the first communication device and the third communication device, from the third communication device, Item 4. The first communication device according to Item 3, wherein the specific information that is the second distance information is received via a second interface.
(Item 5)
The device identification information receiving unit according to any one of Items 1 to 4, wherein the device identification information receiving unit receives the second device identification information from the second communication device via the second interface. 1 communication equipment.
(Item 6)
The second interface is
A first type interface for performing wireless communication according to a first type of communication method of the second communication methods;
A second type of communication method of the second communication methods, a second type for executing wireless communication according to the second type of communication method different from the first type of communication method. A distance at which wireless communication through the second type interface can be performed is smaller than a distance at which wireless communication through the first type interface can be performed; and With
The first network-related information transmitting unit is configured so that the distance between the first communication device and the second communication device is less than the predetermined distance via the second type interface. Transmitting first network related information to the second communication device;
The specific information receiving unit is configured so that the distance between the first communication device and the third communication device is larger than the predetermined distance from the third communication device via the first type interface. And receiving the specific information,
When it is determined that the third device identification information matches the second device identification information, the second network-related information transmission unit transmits the second network via the first type interface. The first communication device according to item 1 or item 2, wherein the relationship information is transmitted to the second communication device that matches the third communication device.
(Item 7)
Item 6 is that the device identification information receiving unit receives the second device identification information from the second communication device via the first interface using the first wireless network. 1st communication apparatus of description.
(Item 8)
The specific information receiving unit receives the specific information which is a predetermined request for requesting network-related information from the third communication device via the first type interface,
The second network related information transmission unit responds to the predetermined request via the first type interface when it is determined that the third device identification information matches the second device identification information. The first communication device according to Item 6 or Item 7, wherein the response including the second network-related information is transmitted to the second communication device that matches the third communication device.
(Item 9)
The specific information receiving unit executes communication of a lower layer that is lower than the highest layer without executing communication of the highest layer for establishing a logical link of the first type communication method. , Receiving the specific information as the predetermined request from the third communication device via the first type interface;
The second network-related information transmitting unit does not execute the communication of the highest layer when the third device identification information is determined to match the second device identification information. The first communication device according to item 8, wherein the response is transmitted to the second communication device that matches the third communication device via the first type interface.
(Item 10)
A computer program for a second communication device,
The second communication device is:
A first interface for executing wireless communication according to the first communication method;
A second interface for executing wireless communication according to a second communication method different from the first communication method;
And a processor,
The computer program causes the processor to execute the following processes:
In relation to the first wireless network from the first communication device via the second interface in a state where the distance between the first communication device and the second communication device is less than a predetermined distance. In the first network related information receiving process for receiving the first network related information, the first wireless network is a network for executing wireless communication via the first interface. A first network-related information reception process;
A first wireless connection request is transmitted to the first communication device via the first interface in response to receiving the first network-related information from the first communication device. Connection request transmission processing;
In response to transmitting the first wireless connection request to the first communication device, the first wireless connection via the first interface is established using the first network related information. A first establishment process that establishes with the first communication device and forms the first wireless network to which both the first communication device and the second communication device belong;
A device identification information receiving process for receiving first device identification information for identifying the first communication device from the first communication device;
A storage control process for storing the first device identification information in a memory of the second communication device;
After the first device identification information is stored in the memory, third device identification information for identifying the third communication device is transmitted from the third communication device via the second interface. First predetermined signal reception processing for receiving a first predetermined signal including:
Identification information determination processing for determining whether or not the third device identification information in the first predetermined signal matches the first device identification information in the memory;
When it is determined that the third device identification information matches the first device identification information, a first predetermined for requesting network related information related to a wireless network via the second interface When the request is transmitted to the first communication device that matches the third communication device, and it is determined that the third device identification information does not match the first device identification information, the first communication device A first predetermined request transmission process that does not transmit a predetermined request to the third communication device;
A second network related to a second wireless network from the first communication device via the second interface in response to transmitting the first predetermined request to the first communication device; A second network relationship information reception process for receiving relationship information, wherein the second wireless network is a network for executing wireless communication via the first interface; and the second network relationship The information is different from the first network related information, the second network related information receiving process,
A second wireless connection request is transmitted to the first communication device via the first interface in response to receiving the second network related information from the first communication device; Connection request transmission processing;
In response to transmitting the second wireless connection request to the first communication device, the second wireless connection via the first interface is established using the second network related information. A second establishment process that establishes with the first communication device and forms the second wireless network to which both the first communication device and the second communication device belong;
A computer program that executes
(Item 11)
In the first predetermined signal reception process, communication in a lower layer that is lower than the highest layer is performed without performing communication in the highest layer for establishing a logical link of the second communication method. The computer program according to item 10, wherein the computer program receives the first predetermined signal from the third communication device via the second interface.
(Item 12)
In the first predetermined request transmission process, when it is determined that the third device identification information matches the first device identification information, the highest level for establishing the logical link of the second communication method Without performing layer communication, perform lower layer communication lower than the uppermost layer, and pass the first predetermined request to the third communication device via the second interface. Send to the matching first communication device;
In the second network-related information reception process, the lower layer communication is executed without executing the uppermost layer communication, and the first communication device via the second interface, Item 12. The computer program according to item 10 or 11, which receives the second network related information.
(Item 13)
The computer program further performs the following processes on the processor:
A second predetermined signal receiving process for receiving a second predetermined signal including the first device identification information from the first communication device via the second interface;
A distance determination process for determining whether a distance between the first communication device and the second communication device is less than the predetermined distance using a radio wave intensity of the second predetermined signal;
When it is determined that the distance between the first communication device and the second communication device is less than the predetermined distance, network-related information related to a wireless network is obtained via the second interface. When a second predetermined request for requesting is transmitted to the first communication device, and it is determined that the distance between the first communication device and the second communication device is not less than the predetermined distance A second predetermined request transmission process that does not transmit the second predetermined request to the first communication device,
In the first network-related information reception process, in response to transmitting the second predetermined request to the first communication device, from the first communication device via the second interface, The computer program according to any one of items 10 to 12, which receives the first network-related information.
(Item 14)
The computer according to any one of Items 10 to 13, wherein, in the device identification information receiving process, the first device identification information is received from the first communication device via the second interface. program.
(Item 15)
The second interface is
A first type interface for performing wireless communication according to a first type of communication method of the second communication methods;
A second type of communication method of the second communication methods, a second type for executing wireless communication according to the second type of communication method different from the first type of communication method. A distance at which wireless communication through the second type interface can be performed is smaller than a distance at which wireless communication through the first type interface can be performed; and With
In the first network-related information reception process, the second communication device receives the second communication device from the first communication device in a state where the distance between the first communication device and the second communication device is less than the predetermined distance. Receiving the first network-related information via a seed interface;
In the first predetermined signal reception process, the first communication device receives the first type of signal from the third communication device in a state where the distance between the first communication device and the third communication device is larger than the predetermined distance. Receiving the predetermined signal including the third device identification information via an interface;
In the first predetermined request transmission process, when it is determined that the third device identification information matches the first device identification information, the predetermined request is transmitted through the first type interface. To the first communication device that matches the three communication devices,
In the second network-related information reception process, any one of items 10 to 12, wherein the second network-related information is received from the first communication device via the first type interface. A computer program described in 1.
(Item 16)
Item 15 includes receiving the first device identification information from the first communication device via the first interface using the first wireless network in the device identification information receiving process. The computer program described.
(Item 17)
A second communication device,
A first interface for executing wireless communication according to the first communication method;
A second interface for executing wireless communication according to a second communication method different from the first communication method;
In relation to the first wireless network from the first communication device via the second interface in a state where the distance between the first communication device and the second communication device is less than a predetermined distance. A first network-related information receiving unit that receives the first network-related information, wherein the first wireless network is a network for performing wireless communication via the first interface, A first network-related information receiving unit;
A first wireless connection request is transmitted to the first communication device via the first interface in response to receiving the first network-related information from the first communication device. A connection request transmission unit;
In response to transmitting the first wireless connection request to the first communication device, the first wireless connection via the first interface is established using the first network related information. A first establishment unit that establishes with the first communication device and forms the first wireless network to which both the first communication device and the second communication device belong;
A device identification information receiving unit for receiving first device identification information for identifying the first communication device from the first communication device;
A storage control unit for storing the first device identification information in a memory of the second communication device;
After the first device identification information is stored in the memory, third device identification information for identifying the third communication device is transmitted from the third communication device via the second interface. A first predetermined signal receiving unit for receiving a first predetermined signal including:
An identification information determination unit that determines whether or not the third device identification information in the first predetermined signal matches the first device identification information in the memory;
When it is determined that the third device identification information matches the first device identification information, a first predetermined for requesting network related information related to a wireless network via the second interface When the request is transmitted to the first communication device that matches the third communication device, and it is determined that the third device identification information does not match the first device identification information, the first communication device A first predetermined request transmitter that does not transmit a predetermined request to the third communication device;
A second network related to a second wireless network from the first communication device via the second interface in response to transmitting the first predetermined request to the first communication device; A second network relation information receiving unit for receiving relation information, wherein the second wireless network is a network for performing wireless communication via the first interface, and the second network relation The information is different from the first network related information, the second network related information receiving unit,
A second wireless connection request is transmitted to the first communication device via the first interface in response to receiving the second network related information from the first communication device; A connection request transmission unit;
In response to transmitting the second wireless connection request to the first communication device, the second wireless connection via the first interface is established using the second network related information. A second establishing unit that establishes with the first communication device and forms the second wireless network to which both the first communication device and the second communication device belong;
A second communication device comprising:

Claims (17)

A first communication device,
A first interface for executing wireless communication according to the first communication method;
A second interface for executing wireless communication according to a second communication method different from the first communication method;
In a state where the distance between the first communication device and the second communication device is less than a predetermined distance, the first network related information related to the first wireless network is obtained via the second interface. A first network-related information transmitting unit configured to transmit to the second communication device, wherein the first wireless network is a network for executing wireless communication via the first interface; 1 network-related information transmitter,
A first connection request receiving unit that receives a first wireless connection request from the second communication device that has received the first network-related information via the first interface;
In response to receiving the first wireless connection request from the second communication device, the first wireless connection via the first interface is made using the first network related information. A first establishing unit that establishes the first wireless network to which both the first communication device and the second communication device belong;
A device identification information receiving unit for receiving second device identification information for identifying the second communication device from the second communication device;
A storage control unit for storing the second device identification information in a memory of the first communication device;
After the second device identification information is stored in the memory, third device identification information for identifying the third communication device is transmitted from the third communication device via the second interface. A specific information receiving unit for receiving specific information including;
An identification information determination unit that determines whether the third device identification information in the specific information matches the second device identification information in the memory;
When it is determined that the third device identification information matches the second device identification information, the second network related information related to the second wireless network is obtained via the second interface. If the third device identification information is determined not to match the second device identification information, the second network related information is transmitted to the second communication device matching the third communication device. A second network-related information transmitting unit that does not transmit to the third communication device, wherein the second wireless network is a network for performing wireless communication via the first interface; The network relation information of 2 is different from the first network relation information, the second network relation information transmission unit,
A second connection request receiving unit that receives a second wireless connection request from the second communication device that has received the second network-related information via the first interface;
In response to receiving the second wireless connection request from the second communication device, the second wireless connection via the first interface is established using the second network related information. A second establishing unit that establishes the second wireless network to which both the first communication device and the second communication device belong,
A first communication device comprising: The first communication device further includes:
Without executing communication of the highest layer for establishing a logical link of the second communication method, communication of a lower layer that is lower than the highest layer is executed, and via the second interface A predetermined signal transmission unit that repeats transmitting the predetermined signal,
2. The first communication device according to claim 1, wherein the specific information receiving unit receives the specific information from the third communication device that has received the predetermined signal via the second interface. The first communication device further includes:
A distance information receiving unit that receives first distance information related to the distance between the first communication device and the second communication device from the second communication device via the second interface. With
The first network-related information transmitting unit is
When the first distance information indicates that the distance between the first communication device and the second communication device is less than the predetermined distance, the first distance information is sent via the second interface. 1 network-related information to the second communication device,
When the first distance information indicates that the distance between the first communication device and the second communication device is greater than the predetermined distance, the first network related information is set to the second network information. Do not send to communication equipment,
The specific information receiving unit receives second distance information related to a distance between the first communication device and the third communication device from the third communication device via the second interface. The first communication device according to claim 1, wherein the specific information is received. The distance information receiving unit uses the logical link of the second communication method established between the first communication device and the second communication device, from the second communication device, Receiving the first distance information via a second interface;
The specific information receiving unit uses the logical link of the second communication method established between the first communication device and the third communication device, from the third communication device, 4. The first communication device according to claim 3, wherein the specific information that is the second distance information is received via a second interface. 5.   5. The device identification information receiving unit according to claim 1, wherein the device identification information receiving unit receives the second device identification information from the second communication device via the second interface. 6. The first communication device. The second interface is
A first type interface for performing wireless communication according to a first type of communication method of the second communication methods;
A second type of communication method of the second communication methods, a second type for executing wireless communication according to the second type of communication method different from the first type of communication method. A distance at which wireless communication through the second type interface can be performed is smaller than a distance at which wireless communication through the first type interface can be performed; and With
The first network-related information transmitting unit is configured so that the distance between the first communication device and the second communication device is less than the predetermined distance via the second type interface. Transmitting first network related information to the second communication device;
The specific information receiving unit is configured so that the distance between the first communication device and the third communication device is larger than the predetermined distance from the third communication device via the first type interface. And receiving the specific information,
When it is determined that the third device identification information matches the second device identification information, the second network-related information transmission unit transmits the second network via the first type interface. The first communication device according to claim 1, wherein the relationship information is transmitted to the second communication device that matches the third communication device.   The device identification information receiving unit receives the second device identification information from the second communication device via the first interface using the first wireless network. 1st communication apparatus. The specific information receiving unit receives the specific information which is a predetermined request for requesting network-related information from the third communication device via the first type interface,
The second network related information transmission unit responds to the predetermined request via the first type interface when it is determined that the third device identification information matches the second device identification information. The first communication according to claim 6 or 7, wherein the response including the second network-related information is transmitted to the second communication device that matches the third communication device. machine. The specific information receiving unit executes communication of a lower layer that is lower than the highest layer without executing communication of the highest layer for establishing a logical link of the first type communication method. , Receiving the specific information as the predetermined request from the third communication device via the first type interface;
The second network-related information transmitting unit does not execute the communication of the highest layer when the third device identification information is determined to match the second device identification information. 9. The first communication device according to claim 8, wherein the response is transmitted to the second communication device that matches the third communication device via the first type interface. . A computer program for a second communication device,
The second communication device is:
A first interface for executing wireless communication according to the first communication method;
A second interface for executing wireless communication according to a second communication method different from the first communication method;
And a processor,
The computer program causes the processor to execute the following processes:
In relation to the first wireless network from the first communication device via the second interface in a state where the distance between the first communication device and the second communication device is less than a predetermined distance. In the first network related information receiving process for receiving the first network related information, the first wireless network is a network for executing wireless communication via the first interface. A first network-related information reception process;
A first wireless connection request is transmitted to the first communication device via the first interface in response to receiving the first network-related information from the first communication device. Connection request transmission processing;
In response to transmitting the first wireless connection request to the first communication device, the first wireless connection via the first interface is established using the first network related information. A first establishment process that establishes with the first communication device and forms the first wireless network to which both the first communication device and the second communication device belong;
A device identification information receiving process for receiving first device identification information for identifying the first communication device from the first communication device;
A storage control process for storing the first device identification information in a memory of the second communication device;
After the first device identification information is stored in the memory, third device identification information for identifying the third communication device is transmitted from the third communication device via the second interface. First predetermined signal reception processing for receiving a first predetermined signal including:
Identification information determination processing for determining whether or not the third device identification information in the first predetermined signal matches the first device identification information in the memory;
When it is determined that the third device identification information matches the first device identification information, a first predetermined for requesting network related information related to a wireless network via the second interface When the request is transmitted to the first communication device that matches the third communication device, and it is determined that the third device identification information does not match the first device identification information, the first communication device A first predetermined request transmission process that does not transmit a predetermined request to the third communication device;
A second network related to a second wireless network from the first communication device via the second interface in response to transmitting the first predetermined request to the first communication device; A second network relationship information reception process for receiving relationship information, wherein the second wireless network is a network for executing wireless communication via the first interface; and the second network relationship The information is different from the first network related information, the second network related information receiving process,
A second wireless connection request is transmitted to the first communication device via the first interface in response to receiving the second network related information from the first communication device; Connection request transmission processing;
In response to transmitting the second wireless connection request to the first communication device, the second wireless connection via the first interface is established using the second network related information. A second establishment process that establishes with the first communication device and forms the second wireless network to which both the first communication device and the second communication device belong;
A computer program that executes   In the first predetermined signal reception process, communication in a lower layer that is lower than the highest layer is performed without performing communication in the highest layer for establishing a logical link of the second communication method. The computer program according to claim 10, wherein the first predetermined signal is received from the third communication device via the second interface. In the first predetermined request transmission process, when it is determined that the third device identification information matches the first device identification information, the highest level for establishing the logical link of the second communication method Without performing layer communication, perform lower layer communication lower than the uppermost layer, and pass the first predetermined request to the third communication device via the second interface. Send to the matching first communication device;
In the second network-related information reception process, the lower layer communication is executed without executing the uppermost layer communication, and the first communication device via the second interface, The computer program according to claim 10, wherein the computer program receives the second network-related information. The computer program further performs the following processes on the processor:
A second predetermined signal receiving process for receiving a second predetermined signal including the first device identification information from the first communication device via the second interface;
A distance determination process for determining whether a distance between the first communication device and the second communication device is less than the predetermined distance using a radio wave intensity of the second predetermined signal;
When it is determined that the distance between the first communication device and the second communication device is less than the predetermined distance, network-related information related to a wireless network is obtained via the second interface. When a second predetermined request for requesting is transmitted to the first communication device, and it is determined that the distance between the first communication device and the second communication device is not less than the predetermined distance A second predetermined request transmission process that does not transmit the second predetermined request to the first communication device,
In the first network-related information reception process, in response to transmitting the second predetermined request to the first communication device, from the first communication device via the second interface, The computer program according to any one of claims 10 to 12, which receives first network-related information.   14. The device identification information receiving process according to claim 10, wherein the first device identification information is received from the first communication device via the second interface. 15. Computer program. The second interface is
A first type interface for performing wireless communication according to a first type of communication method of the second communication methods;
A second type of communication method of the second communication methods, a second type for executing wireless communication according to the second type of communication method different from the first type of communication method. A distance at which wireless communication through the second type interface can be performed is smaller than a distance at which wireless communication through the first type interface can be performed; and With
In the first network-related information reception process, the second communication device receives the second communication device from the first communication device in a state where the distance between the first communication device and the second communication device is less than the predetermined distance. Receiving the first network-related information via a seed interface;
In the first predetermined signal reception process, the first communication device receives the first type of signal from the third communication device in a state where the distance between the first communication device and the third communication device is larger than the predetermined distance. Receiving the predetermined signal including the third device identification information via an interface;
In the first predetermined request transmission process, when it is determined that the third device identification information matches the first device identification information, the predetermined request is transmitted through the first type interface. To the first communication device that matches the three communication devices,
The said 2nd network related information receiving process WHEREIN: The said 2nd network related information is received from the said 1st communication apparatus via the said 1st type interface. The computer program according to one item.   16. The device identification information receiving process receives the first device identification information from the first communication device via the first interface using the first wireless network. A computer program described in 1. A second communication device,
A first interface for executing wireless communication according to the first communication method;
A second interface for executing wireless communication according to a second communication method different from the first communication method;
In relation to the first wireless network from the first communication device via the second interface in a state where the distance between the first communication device and the second communication device is less than a predetermined distance. A first network-related information receiving unit that receives the first network-related information, wherein the first wireless network is a network for performing wireless communication via the first interface, A first network-related information receiving unit;
A first wireless connection request is transmitted to the first communication device via the first interface in response to receiving the first network-related information from the first communication device. A connection request transmission unit;
In response to transmitting the first wireless connection request to the first communication device, the first wireless connection via the first interface is established using the first network related information. A first establishment unit that establishes with the first communication device and forms the first wireless network to which both the first communication device and the second communication device belong;
A device identification information receiving unit for receiving first device identification information for identifying the first communication device from the first communication device;
A storage control unit for storing the first device identification information in a memory of the second communication device;
After the first device identification information is stored in the memory, third device identification information for identifying the third communication device is transmitted from the third communication device via the second interface. A first predetermined signal receiving unit for receiving a first predetermined signal including:
An identification information determination unit that determines whether or not the third device identification information in the first predetermined signal matches the first device identification information in the memory;
When it is determined that the third device identification information matches the first device identification information, a first predetermined for requesting network related information related to a wireless network via the second interface When the request is transmitted to the first communication device that matches the third communication device, and it is determined that the third device identification information does not match the first device identification information, the first communication device A first predetermined request transmitter that does not transmit a predetermined request to the third communication device;
A second network related to a second wireless network from the first communication device via the second interface in response to transmitting the first predetermined request to the first communication device; A second network relation information receiving unit for receiving relation information, wherein the second wireless network is a network for performing wireless communication via the first interface, and the second network relation The information is different from the first network related information, the second network related information receiving unit,
A second wireless connection request is transmitted to the first communication device via the first interface in response to receiving the second network related information from the first communication device; A connection request transmission unit;
In response to transmitting the second wireless connection request to the first communication device, the second wireless connection via the first interface is established using the second network related information. A second establishing unit that establishes with the first communication device and forms the second wireless network to which both the first communication device and the second communication device belong;
A second communication device comprising:

Images