JP5862256B2 - Wireless communication device - Google Patents

Description

  The present specification discloses a wireless communication apparatus for executing wireless communication of target data to be communicated with an external device.

  For example, Patent Document 1 discloses a technique for executing wireless data communication between a master station and a slave station. In this technique, the output radio wave intensity of each of the master station and the slave station is set to the minimum level that can be reached between the master station and the slave station. Patent Document 2 discloses a wireless tag communication device that performs wireless communication with a wireless tag. When performing communication with the wireless tag, the wireless tag communication device detects the distance between the wireless tag and the wireless tag communication device, and controls the signal strength of the transmission signal according to the detected distance.

JP-A-10-107800 JP 2006-324821 A

  The present specification provides a technique in which a wireless communication apparatus can perform stable wireless communication with an external device.

  The present specification discloses a wireless communication apparatus for executing wireless communication of target data to be communicated with an external device using a radio wave having a specific radio wave intensity. The wireless communication device includes a determination unit, a first processing unit, and a second processing unit. The determination unit determines whether or not the first setting communication can be executed between the external device and the wireless communication apparatus using a radio wave having a first radio wave intensity lower than a specific radio wave intensity. The first setting communication includes wireless communication of specific wireless setting information for wireless communication of target data. The first processing unit executes the first process when it is determined that the first setting communication cannot be executed. The second processing unit executes a second process different from the first process when it is determined that the first setting communication can be executed.

  The first radio field intensity is lower than a specific radio field intensity. For this reason, in a situation where it is determined that the first setting communication using the first radio wave intensity can be executed, the wireless communication apparatus performs wireless communication of the target data using the specific radio wave intensity with the external device. And can run stably. On the other hand, in a situation where it is determined that the first setting communication cannot be executed, the wireless communication apparatus may not be able to stably execute wireless communication of target data using a specific radio wave intensity with an external device. There is. In order to change the content of the subsequent processing (that is, the first and second processing) in accordance with the determination result of whether or not the first setting communication can be executed, the wireless communication device described above Appropriate processing for stably performing wireless communication of the target data with the wireless communication device can be executed. As a result, the wireless communication apparatus can execute stable wireless communication with the external device.

Note that a control method, a computer program, and a computer-readable storage medium storing the computer program for realizing the wireless communication apparatus are also novel and useful. A wireless communication system including the wireless communication apparatus and the external device is also new and useful.
The features of this embodiment are listed below.
(1) The first processing outputs first information related to the inability to execute wireless communication using the radio wave of the first radio wave intensity between the external device and the radio communication device. Including the first output control process to be output to the second output process, the second process may not include the first output control process.
(2) In the first process, the second setting communication can be executed between the external device and the wireless communication apparatus using a radio wave having a second radio wave intensity higher than the first radio wave intensity. Including a first determination process for determining whether or not there is, the second setting communication includes wireless communication of specific wireless setting information, and the first output control process is capable of executing the second setting communication. A process for causing the output unit to output first information including recommendation information for recommending that the positional relationship between the external device and the wireless communication apparatus be adjusted, and second setting communication A process for causing the output unit to output first information including error information indicating that wireless communication is not executable between the external device and the wireless communication device, May be included.
(3) The first processing further uses a radio wave having a third radio wave intensity that is higher than the first radio wave intensity and lower than the second radio wave intensity between the external device and the wireless communication apparatus. Second determination processing for determining whether or not the third setting communication can be executed, wherein the third setting communication includes wireless communication of specific wireless setting information. And when it is determined that the third setting communication can be executed, the wireless communication using the radio wave of the third radio wave intensity can be executed between the external device and the wireless communication device. Second output control processing for causing the output unit to output the second information to be performed, and the first processing unit performs the first determination when it is determined that the third setting communication cannot be performed. Processing may be executed.
(4) The second radio wave intensity may be equal to the specific radio wave intensity.
(5) The second process may include a process of executing wireless communication of the target data using a specific radio wave intensity.
(6) In the second process, third information related to the fact that wireless communication using the radio wave of the first radio wave intensity can be executed between the external device and the radio communication device is output to the output unit. A third output control process to be output is included, and the first process may not include the third output control process.
(7) The external device includes an interface connected to a general public line, and the target data is FAX data communicated between the external device and a specific device via the general public line, and a wireless communication apparatus May be a device for executing wireless communication of target data that is FAX data with an external device.
(8) The first output control process may include a process of causing the output unit to output the first information by transmitting the first information to an external device including the output unit.

1 shows a configuration of a wireless communication system. The sequence diagram of the process which a multi-function device and a telephone call device perform is shown. 6 is a flowchart of ad hoc wireless setting processing executed by the multi-function device. The sequence diagram of the process which a multi-function device, an access point, and a call device perform is shown. 2 is a flowchart of infrastructure wireless setting processing executed by a multi-function device. The flowchart of the wireless setting process of the infrastructure which a call device performs is shown. The flowchart for demonstrating the radio | wireless setting process of 1st Example is shown. The flowchart for demonstrating the wireless setting process of 2nd Example is shown. 7 is a flowchart for explaining a wireless setting process according to the third embodiment. 7 is a flowchart for explaining a wireless setting process according to a fourth embodiment.

(System configuration)
As shown in FIG. 1, the wireless communication system 2 includes an AP (access point) 6, a multi-function device 10, a call device 70, and a FAX apparatus 4. The multi-function device 10 and the call device 70 can communicate with each other wirelessly via the AP 6 or without the AP 6. That is, the multi-function device 10 and the calling device 70 can execute infrastructure wireless communication via the AP 6 or ad hoc wireless communication not via the AP 6. In the present embodiment, wireless communication is executed based on the IEEE (The Institute of Electrical and Electronics Engineers, Inc.) 802.11 standard and standards (for example, 802.11a, 11b, and the like). The Accordingly, wireless settings WS1, WS2, and WS3 described later are wireless settings that conform to the above-described standards. The telephone device 70 can perform FAX data communication with the FAX apparatus 4 via a PSTN (Public Switched Telephone Network) 8 which is a general public line network.

(Configuration of multi-function device 10)
The multi-function device (which may be referred to as “parent device”) 10 includes an operation unit 12, a display unit 14, a print execution unit 16, a scan execution unit 18, a wireless interface 20, and a control unit 30. . The operation unit 12 includes a plurality of keys. The user can input various instructions to the multi-function device 10 by operating the operation unit 12. The display unit 14 is a display for displaying various information. The print execution unit 16 is a printing mechanism such as an inkjet method or a laser method. The scan execution unit 18 is a scan mechanism such as a CCD or CIS. The wireless interface 20 is an interface for executing wireless communication.

  The control unit 30 includes a CPU 32, an NVRAM (nonvolatile memory) 34, and a VRAM (volatile memory) 40. The CPU 32 executes various processes according to a program stored in a ROM (not shown) of the multi-function device 10. When the CPU 32 executes processing according to the program, the functions of the units 52 to 56 are realized.

  The NVRAM 34 includes a designated setting area 36 and an initial setting area 38. The initial setting area 38 is a storage area for storing wireless setting information (that is, a default authentication method, a default encryption method, a default password, etc.) predetermined by the vendor of the multi-function device 10. Hereinafter, the wireless setting information stored in the initial setting area 38 is referred to as “initial setting WS1”. The initial setting WS1 is stored in advance in the multi-function device 10 when the multi-function device 10 is shipped. The initial setting WS1 is ad hoc wireless setting information for realizing wireless communication not via the access point 6.

  When the multi-function device 10 desires to use wireless setting information different from the initial setting WS1, the user operates the operation unit 12 of the multi-function device 10 to set the wireless setting to be used by the multi-function device 10, for example. Information (ie, authentication scheme, encryption scheme, password, etc.) can be specified. Hereinafter, the wireless setting information of the multi-function device 10 specified by the user is referred to as “specified setting WS2”. The designated setting area 36 is a storage area for storing the designated setting WS2. In the present embodiment, the designated setting WS2 is infrastructure wireless setting information for realizing wireless communication via the access point 6. Therefore, the designated setting WS2 is different from the initial setting WS1 which is the ad hoc wireless setting information.

  The VRAM 40 includes a wireless setting work area 42. The wireless setting work area 42 is a storage area for storing the current wireless setting of the multi-function device 10 (that is, wireless setting information that the multi-function device 10 should currently use). After the multi-function device 10 is shipped and before the designated setting WS2 is designated by the user, when the power of the multi-function device 10 is turned on, the CPU 32 sets the initial setting WS1 in the wireless setting work area 42. Store. Thereby, the multi-function device 10 can execute wireless communication using the ad hoc wireless setting information. After the designated setting WS2 is designated by the user, when the multi-function device 10 is turned on, the CPU 32 normally stores the designated setting WS2 in the wireless setting work area 42. Thereby, the multi-function device 10 can execute wireless communication using the wireless setting information of the infrastructure.

  That is, the multi-function device 10 performs wireless communication in one of two modes, an infrastructure mode and an ad hoc mode. When the initial setting WS1 is stored in the wireless setting work area 42, the multi-function device 10 performs wireless communication in the ad hoc mode, and when the designated setting WS2 is stored in the wireless setting work area 42, the multi-function device 10 Execute wireless communication in the structure mode.

(Configuration of calling device 70)
The call device (which may be referred to as “slave unit”) 70 includes a microphone 72, a speaker 74, a PSTN interface 76, a wireless interface 78, and a control unit 80. Since the calling device 70 includes the microphone 72 and the speaker 74, the user can perform telephone communication via the PSTN 8 using the calling device 70. The PSTN interface 76 is connected to the PSTN 8. Specifically, one end of a PSTN cable is connected to the PSTN interface 76. The other end of the PSTN cable is connected to a PSTN socket in the home, for example. The wireless interface 78 is an interface for executing wireless communication.

  The control unit 80 includes a CPU 82, NVRAM 84, and VRAM 90. The CPU 82 executes various processes according to a program stored in a ROM (not shown) of the call device 70. The functions of the units 102 to 106 are realized by the CPU 82 executing processing according to the program.

  The NVRAM 84 includes a designated setting area 86 and an initial setting area 88. The initial setting area 88 is a storage area for storing the same ad hoc initial setting WS 1 as that of the multi-function device 10. The initial setting WS1 is stored in advance in the call device 70 when the call device 70 is shipped (that is, when the multi-function device 10 is shipped).

  When the user desires to use the wireless setting information different from the initial setting WS1, the user operates the operation unit 12 of the multi-function device 10, for example, to set the wireless setting information ( That is, an authentication method, an encryption method, a password, etc.) can be designated. Hereinafter, the wireless setting information of the calling device 70 specified by the user is referred to as “specified setting WS3”. When the designated setting WS3 for the calling device 70 is designated, the multi-function device 10 wirelessly transmits the designated setting WS3 to the calling device 70 using the current wireless setting information of the multi-function device 10 (for example, the initial setting WS1). Send with. Thereby, the telephone device 70 can acquire the designated setting WS3. When the multi-function device 10 and the calling device 70 perform wireless communication with the same AP 6, the designated setting WS2 and the designated setting WS3 are the same.

  The designated setting area 86 is a storage area for storing the designated setting WS3. In this embodiment, the designated setting WS3 is infrastructure wireless setting information. Accordingly, the designated setting WS3 is different from the ad hoc initial setting WS1.

  The VRAM 90 includes a wireless setting work area 92. The wireless setting work area 92 is a storage area for storing current wireless setting information of the calling device 70 (that is, wireless setting information to be currently used by the calling device 70). Between the time when the calling device 70 is shipped together with the multi-function device 10 and the time when the designated setting WS3 is designated by the user, the CPU 82 wirelessly sets the initial setting WS1 when the power of the calling device 70 is turned on. Store in the work area 92. Thereby, the calling device 70 can execute wireless communication using the ad hoc wireless setting information. After the designated setting WS3 is designated by the user, when the telephone device 70 is powered on, the CPU 82 normally stores the designated setting WS3 in the wireless setting work area 92. Thereby, the telephone device 70 can execute wireless communication using the wireless setting information of the infrastructure. Each of the multi-function device 10 and the calling device 70 is set in the initial setting WS1 as its own wireless setting at the shipping stage, and is in a state where it can communicate with each other.

  That is, as with the multi-function device 10, the calling device 70 performs wireless communication in one of two modes, an infrastructure mode and an ad hoc mode. When the initial setting WS1 is stored in the wireless setting work area 92, the calling device 70 performs wireless communication in the ad hoc mode. When the designated setting WS3 is stored in the wireless setting work area 92, the multi-function device 10 performs wireless communication in the infrastructure mode.

  The multi-function device 10 executes a process in cooperation with the telephone device 70 to thereby execute a specific function (for example, FAX) among a plurality of functions (for example, a FAX function and a print function) that can be realized by the multi-function device 10. Function) is realized. Therefore, the calling device 70 is not usually shipped alone but shipped with the multi-function device 10. That is, the call device 70 is an accessory device of the multi-function device 10.

(FAX function)
For example, when receiving the FAX data via the PSTN interface 76, the telephone device 70 transmits the FAX data to the multi-function device 10 wirelessly. When the FAX data transmitted wirelessly from the call device 70 is received by the wireless interface 20, the multi-function device 10 causes the print execution unit 16 to print an image represented by the FAX data. As a result, a FAX reception operation is executed.

  In addition, the multi-function device 10 wirelessly transmits FAX data generated when the scan execution unit 18 scans a document to the call device 70. When the FAX data transmitted wirelessly from the multi-function device 10 is received by the wireless interface 78, the calling device 70 transmits the FAX data to the destination designated in advance by the user via the PSTN 8. . As a result, a FAX transmission operation is executed.

  The multi-function device 10 includes a print execution unit 16 for printing an image represented by FAX data received via the PSTN 8, but the call device 70 does not include the print execution unit 16. The multi-function device 10 includes a scan execution unit 18 for scanning a document and generating FAX data to be transmitted via the PSTN 8, but the calling device 70 includes the scan execution unit 18. Not. That is, the telephone device 70 can receive FAX data via the PSTN 8 instead of the multi-function device 10 and can transmit FAX data via the PSTN 8 instead of the multi-function device 10.

  As described above, the telephone device 70 does not include the print execution unit 16 and the scan execution unit 18. Therefore, the calling device 70 has a smaller size than the multi-function device 10. In general, the position of the PSTN socket is determined in the home. If a configuration in which a PSTN cable must be connected to the multi-function device 10 is adopted, the multi-function device 10 needs to be disposed in the vicinity of the PSTN socket. Since the multi-function device 10 has a relatively large size, it is difficult to place the multi-function device 10 in the vicinity of the PSTN socket in an environment where there is little space in the vicinity of the PSTN socket. On the other hand, in the present embodiment, the PSTN interface 76 is provided in the call device 70 having a relatively small size. Therefore, even in an environment where there is little space near the PSTN socket, the call device 70 can be easily arranged near the PSTN socket and the call device 70 can be connected to the PSTN 8. Furthermore, the multi-function device 10 can be arranged without being limited to the vicinity of the PSTN socket.

(Processes executed by the multi-function device 10 and the telephone device 70)
Next, a process for the multi-function device 10 and the call device 70 to perform ad hoc wireless communication will be described with reference to FIG. When the user purchases the multi-function device 10 and the call device 70, the multi-function device 10 and the call device 70 are disposed in the home, for example. When the user turns on the power of the multi-function device 10, the multi-function device 10 is set to the ad hoc mode (SM2). More specifically, in SM2, the control unit 30 of the multi-function device 10 stores the initial setting WS1 stored in the NVRAM 34 in the wireless setting work area 42. Similarly, when the user turns on the power of the calling device 70, the calling device 70 is set to the ad hoc mode (ST2). More specifically, in STM2, the control unit 80 of the call device 70 stores the initial setting WS1 stored in the NVRAM 84 in the wireless setting work area 92. Next, the control unit 30 of the multi-function device 10 executes a wireless setting process in order to perform ad hoc wireless communication with the calling device 70 (SM4).

(Multi-function device-Ad hoc wireless setting processing of calling device)
As shown in FIG. 3, in the wireless setting process, the determination unit 52 wirelessly sends a connection request to the call device 70 using a radio wave having a radio wave intensity 60% (eg, 18 mW) of a normal radio wave intensity (eg, 30 mW). Attempt to transmit (S2). The normal radio wave intensity is a radio wave intensity used when wireless communication of FAX data is executed between the multi-function device 10 and the call device 70. The connection request includes the initial setting WS1.

  The control unit 80 of the call device 70 monitors reception of a connection request from the multi-function device 10. For example, when the multi-function device 10 and the call device 70 are arranged relatively close to each other and there is no obstacle such as a wall between the multi-function device 10 and the call device 70, the call device 70 Can receive a connection request from the multi-function device 10. On the other hand, for example, when the multi-function device 10 and the calling device 70 are disposed relatively far away, or when there is an interference between the multi-function device 10 and the calling device 70, The device 70 cannot receive a connection request from the multi-function device 10.

  When the call device 70 receives a connection request from the multi-function device 10, the call device 70 performs authentication based on the connection request. This authentication includes a determination as to whether or not the authentication method and the encryption method included in the connection request match the authentication method and the encryption method included in the initial setting WS1 stored in the wireless setting work area 92. Since the initial setting WS1 is stored in advance in both the multi-function device 10 and the call device 70, the above authentication is normally successful. The calling device 70 transmits an authentication result indicating a successful authentication to the multi-function device 10 using normal radio wave intensity.

  The determination unit 52 monitors whether an authentication result indicating successful authentication is received from the call device 70. When the authentication result is received from the call device 70, the determination unit 52 determines that the multi-function device 10 and the call device 70 can be connected using a radio wave having a radio wave intensity of 60% (YES in S4). ). On the other hand, in S2, if the authentication result is not received even after a predetermined period (for example, 1 minute) has elapsed from the transmission of the connection request, the determination unit 52 determines that the multi-function device 10 and the call device 70 are It is determined that connection is not possible using radio waves having a radio field strength of 60% (NO in S4).

  If YES in S4, the second processing unit 56 displays the predetermined character string CS1 on the display unit 14 (S6), and ends the wireless setting process. On the other hand, in the case of NO in S4, the first processing unit 54 wirelessly transmits a connection request to the call device 70 using a radio wave having a radio wave intensity of 80% (eg, 24 mW) of a normal radio wave intensity (eg, 30 mW). (S8). When an authentication result indicating a successful authentication is received from the calling device 70, the first processing unit 54 can connect the multi-function device 10 and the calling device 70 using a radio wave having a radio field intensity of 80%. (YES in S10). On the other hand, if the authentication result is not received even after a predetermined period (for example, 1 minute) has elapsed since the connection request was transmitted in S8, the first processing unit 54 makes a call with the multi-function device 10. The device 70 determines that connection is not possible using radio waves having a radio field intensity of 80% (NO in S10).

  If YES in S10, the first processing unit 54 displays a predetermined character string CS2 on the display unit 14 (S12), and ends the wireless setting process. On the other hand, in the case of NO in S10, the first processing unit 54 attempts to wirelessly transmit a connection request to the calling device 70 using a radio wave having a normal radio wave intensity (for example, 30 mW) (S14). When an authentication result indicating a successful authentication is received from the call device 70, the first processing unit 54 indicates that the multi-function device 10 and the call device 70 can be connected using a radio wave having a normal radio wave intensity. Judgment is made (YES in S16). On the other hand, if the authentication result is not received even after a predetermined period (for example, 1 minute) has elapsed since the connection request was transmitted in S14, the first processing unit 54 makes a call with the multi-function device 10. The device 70 determines that connection is not possible using normal radio wave intensity (NO in S16).

  In the case of NO in S16, the first processing unit 54 displays a predetermined character string CS3 on the display unit 14 (S18), and ends the process. On the other hand, if YES in S16, the first processing unit 54 causes the display unit 14 to display a predetermined character string CS4 (S20).

  The first processing unit 54 determines whether or not the user selects to continue the connection (S22). Specifically, the first processing unit 54 causes the display unit 14 to display two buttons, “continue connection” and “cancel connection”. The user can select one of the two buttons by operating the operation unit 12. When the “continue connection” button is selected by the user (YES in S22), the wireless setting process ends.

  On the other hand, if the “cancel connection” button is selected by the user (NO in S22), the wireless setting process is terminated. Hereinafter, the case where the multi-function device 10 and the calling device 70 are not connected (that is, when S18 is executed or when the “Cancel connection” button is selected in S20) is referred to as “error end”, and the multi-function The case where the wireless setting process is completed when the device 10 and the telephone device 70 are connected (that is, through YES in S6, S12, and S22) is referred to as “setting completed”.

  In the case of an error end (NO in SM6), in SM8 in FIG. 2, the first processing unit 54 deletes the initial setting WS1 from the wireless setting work area. In this case, even if the calling device 70 receives FAX data via the PSTN, the calling device 70 cannot transmit FAX data to the multi-function device 10. On the other hand, when the setting is completed (YES in SM6), the first processing unit 54 does not delete the initial setting WS1 from the wireless setting work area 42. When the setting is completed (YES in SM6), when the calling device 70 receives FAX data via the PSTN, the second processing unit 56 executes ad hoc wireless communication using normal radio wave intensity. , FAX data is received from the call device 70.

  In the case of an error end, information indicating that the positional relationship between the multi-function device 10 and the calling device 70 should be adjusted is displayed on the display unit 14 (S18 and S20 in FIG. 3). The user can know that the positional relationship between the multi-function device 10 and the call device 70 needs to be adjusted. The user turns off the power of the multi-function device 10 and the call device 70 to adjust the positional relationship between the multi-function device 10 and the call device 70 (for example, bring the multi-function device 10 and the call device 70 closer). Next, after the position adjustment, the user turns on the power of the multi-function device 10 and the call device 70 again. As a result, the process of FIG. 2 is executed again. Thereby, it can be judged YES in S4 of FIG. That is, the multi-function device 10 and the call device 70 can stably perform ad hoc wireless communication.

(Processes executed by the multi-function device 10, the call device 70, and the AP 6)
Next, a process for the multi-function device 10 and the call device 70 to execute infrastructure wireless communication via the AP 6 will be described with reference to FIG. Each process in FIG. 4 is executed in a situation where the process in FIG. 2 is completed, that is, in a situation where the multi-function device 10 and the call device 70 can perform ad hoc wireless communication.

  When the designated setting WS2 is designated by the user, the multi-function device 10 switches from the ad hoc mode to the infrastructure mode (SM10). Specifically, when the designated setting WS2 is stored in the designated setting area 36, the control unit 30 of the multi-function device 10 deletes the initial setting WS1 stored in the wireless work area 42 and sets the designated area WS2 in the designated setting area 36. Store in the wireless work area 42. Next, the control unit 30 executes a wireless setting process in order to perform wireless communication with the AP 6 (SM12).

(Multifunction device 10-AP6 infrastructure wireless setting process)
As shown in FIG. 5, in this wireless setting process, the determination unit 52 attempts to transmit a connection request to the AP 6 using a radio wave having a radio field intensity 60% of the normal radio field intensity (S32). The connection request includes the designated setting WS2.

  The AP 6 monitors reception of a connection request from the multi-function device 10. Similar to the positional relationship between the multi-function device 10 and the calling device 70, the positional relationship between the multi-function device 10 and the AP 6 is divided into a case where the AP 6 receives the connection request and a case where the AP 6 does not receive the connection request.

  When the AP 6 receives the connection request, the AP 6 performs authentication based on the connection request. This authentication includes, for example, authentication relating to whether or not the AP 6 supports the authentication method and encryption method included in the designated setting WS2, and authentication relating to whether or not the password included in the designated setting WS2 is registered in the AP 6. Etc. The AP 6 transmits the authentication result to the multi-function device 10 using the normal radio wave intensity.

  The determination unit 52 monitors that an authentication result indicating successful authentication is received from the AP 6. When the authentication result indicating the authentication success is received from the AP 6, the determination unit 52 determines that the multi-function device 10 and the AP 6 can be connected using a radio wave having a radio field strength of 60% (YES in S 34). ). Although not shown, when the authentication result indicates an authentication failure, the determination unit 52 displays information indicating that the authentication has failed on the display unit 14 and ends the wireless setting process.

  On the other hand, if the authentication result is not received even after a predetermined period (for example, 1 minute) has elapsed since the connection request was transmitted in S32, the determination unit 52 determines that the multi-function device 10 and the AP 6 It is determined that connection is not possible using radio waves having a radio field strength of 60% (NO in S34).

  If YES in S34, the second processing unit 56 causes the display unit 14 to display a predetermined character string CS5 (S36), and ends the wireless setting process. On the other hand, in the case of NO in S34, the first processing unit 54 wirelessly transmits a connection request to the AP 6 using a radio wave having a radio wave intensity of 80% (eg, 24 mW) of a normal radio wave intensity (eg, 30 mW). This is tried (S38). When an authentication result indicating successful authentication is received from the AP 6, the first processing unit 54 determines that the multi-function device 10 and the AP 6 can be connected using a radio wave having a radio field intensity of 80% ( YES in S40). On the other hand, if the authentication result is not received even after a predetermined period (for example, 1 minute) has elapsed since the connection request was transmitted in S38, the first processing unit 54 determines that the multi-function device 10 and the AP 6 However, it is determined that connection is not possible using radio waves having a radio field intensity of 80% (NO in S40).

  If YES in S40, the first processing unit 54 displays a predetermined character string CS6 on the display unit 14 (S42), and ends the wireless setting process. On the other hand, in the case of NO in S40, the first processing unit 54 attempts to wirelessly transmit a connection request to the AP 6 using a radio wave having a normal radio wave intensity (for example, 30 mW) (S44). When an authentication result indicating successful authentication is received from the AP 6, the first processing unit 54 determines that the multi-function device 10 and the AP 6 can execute wireless communication using a radio wave having a normal radio wave intensity. (YES in S46). On the other hand, if the authentication result is not received even after a predetermined period (for example, 1 minute) has elapsed since the connection request was transmitted in S44, the first processing unit 54 determines that the multi-function device 10 and the AP 6 However, it is determined that wireless communication using a radio wave having a normal radio wave intensity cannot be executed (NO in S46).

  In the case of NO in S46, the first processing unit 54 displays the predetermined character string CS7 on the display unit 14 (S48), and ends the wireless setting process. On the other hand, if YES in S46, the first processing unit 54 causes the display unit 14 to display a predetermined character string CS8 (S50).

  The first processing unit 54 determines whether or not the user selects to continue the connection as in S22 of FIG. If the “continue connection” button is selected by the user (YES in S52), the wireless setting process ends. On the other hand, if the “cancel connection” button is selected by the user (NO in S52), the wireless setting process is terminated. Hereinafter, the case where the multi-function device 10 and the AP 6 are not connected (that is, the case where S48 is executed or the “connection stop” button is selected in S50) is referred to as “error end”, and the multi-function device 10 and the AP 6 Is connected (that is, through YES in S36, S42, and S52), the case where the wireless setting process is ended is referred to as “setting end”.

  In the case of an error end (NO in SM14), the multi-function device 10 cannot execute wireless communication with the AP 6 using the designated setting WS2. In this case, in SM16, the first processing unit 54 deletes the designated setting WS2 from the wireless setting work area 42 and stores the initial setting WS1 in the wireless setting work area 42. On the other hand, when the setting is completed (YES in SM14), the second processing unit 56 deletes the designated setting WS2 from the wireless setting work area 42 and changes the initial setting WS1 to the wireless setting in the same manner as the first processing unit 54. It is stored in the setting work area 42 (the multi-function device 10 is switched from the infrastructure mode to the ad hoc mode (SM18)). Next, the second processing unit 56 performs ad hoc wireless communication using a radio wave having a normal radio field intensity, and transmits the designated setting WS <b> 2 stored in the designated setting area 36 to the call device 70.

  In ST10, the control unit 80 of the calling device 70 monitors reception of the designated setting WS2 from the multi-function device 10. When the designated setting WS2 is received, the control unit 80 performs a wireless setting process in order to perform wireless communication with the AP 6 (ST12).

(Wireless setting processing of infrastructure of calling device 70-AP6)
As illustrated in FIG. 6, the control unit 80 stores the received designated setting WS <b> 2 in the designated setting area 86. Next, in S <b> 62, the control unit 80 deletes the initial setting WS <b> 1 from the wireless setting work area 92 and stores the designated setting WS <b> 2 in the wireless setting work area 92. Thereby, the telephone device 70 switches from the ad hoc mode to the infrastructure mode. Next, the determination unit 102 executes the processes of S62 and S64 in the same manner as the processes of S32 and S34 in FIG.

  When the AP 6 receives the connection request from the call device 70, the AP 6 executes the same processing as when receiving the connection request from the multi-function device 10. When determining unit 102 determines that call device 70 and AP 6 can be connected using a radio wave having a radio field intensity of 60% (YES in S66), in S68, second processing unit 106 The designated setting WS2 is deleted from the setting work area 92, the initial setting WS1 is stored in the wireless setting work area 92, and the call device 70 is switched from the infrastructure mode to the ad hoc mode.

  Next, in S <b> 70, the second processing unit 106 transmits information indicating that the wireless connection with the AP 6 can be established with the radio wave intensity of 60% to the multi-function device 10 and ends the process. When the control unit 30 of the multi-function device 10 receives the information transmitted from the calling device in S70, the predetermined character string “The calling device and the access point have sufficient connection radio field strength” ( (Hereinafter referred to as “character string CS9”) is displayed on the display unit 14. According to this configuration, it is possible to cause the display unit 14 of the multi-function device 10 to display information related to wireless communication of the calling device 70 that does not include the display unit. As a result, the user can know information related to wireless communication of the calling device 70 by checking the display unit 14 of the multi-function device 10.

  On the other hand, when the determination unit 102 determines that the multi-function device 10 and the AP 6 are not connectable using the radio wave having 60% radio wave intensity (NO in S66), the first processing unit 104 performs processing shown in FIG. Similar to the processes of S38 and S40, the processes of S72 and S74 are executed. If the first processing unit 104 determines that the call device 70 and the AP 6 can be connected using a radio wave having a radio field intensity of 80% (YES in S74), in S76, the second processing unit 106 The designated setting WS2 is deleted from the wireless setting work area 92, the initial setting WS1 is stored in the wireless setting work area 92, and the call device 70 is switched from the infrastructure mode to the ad hoc mode.

  Next, in S78, the second processing unit 106 transmits information indicating that the wireless connection with the AP 6 can be established with the radio wave intensity of 80% to the multi-function device 10 and ends the process. When the control unit 30 of the multi-function device 10 receives the information transmitted in S78 from the calling device, a predetermined character string “The calling device and the access point have an acceptable level of connection radio wave strength”. (Hereinafter referred to as “character string CS10”) is displayed on the display unit 14.

  On the other hand, when the determination unit 102 determines that the multi-function device 10 and the AP 6 are not connectable using radio waves having a radio field intensity of 80% (NO in S74), the first processing unit 104 performs processing shown in FIG. Similar to the processes of S44 and S46, the processes of S80 and S82 are executed. If the first processing unit 104 determines that the call device 70 and the AP 6 can be connected using a radio wave having a normal radio wave intensity (100%) (YES in S82), the first processing unit 104 determines the call device 70 in S84. Switch from infrastructure mode to ad hoc mode.

  Next, in S <b> 86, the first processing unit 104 transmits information indicating that the wireless connection with the AP 6 with the radio wave intensity of 100% is established to the multi-function device 10. When the control unit 30 of the multi-function device 10 receives the information transmitted from the calling device in S86, the predetermined character string “The calling device and the access point cannot secure sufficient connection radio wave intensity. If possible, adjust the location of the calling device and the access point, and reconfigure the wireless settings. Do you want to continue the connection in this state? ”(Hereinafter referred to as“ character string CS12 ”). To display.

  The control unit 30 determines whether or not the user selects to continue the connection as in S52 of FIG. When the “continue connection” button is selected by the user, the control unit 30 transmits information indicating that the connection has been continued to the call device 70 using ad hoc wireless communication. On the other hand, when the “connection stop” button is selected, the control unit 30 transmits information indicating that the connection stop is selected to the call device 70 using ad hoc wireless communication.

  In S <b> 88, the first processing unit 104 determines whether the user selection result received from the multi-function device 10 is a continuation of connection. If the user selection result is connection continuation (YES in S88), the wireless setting process is terminated. If the user selection result is a connection stop (NO in S88), the wireless setting process is terminated.

  If the first processing unit 104 determines that the call device 70 and the AP 6 cannot execute wireless communication using a radio wave having a normal radio wave intensity (NO in S82), the first processing unit 104 sets the call device 70 to the infrastructure in S90. Switch from mode to ad hoc mode. Next, in S <b> 92, the first processing unit 104 transmits information indicating that the connection could not be established with the radio wave intensity of 100% to the multi-function device 10. When the control unit 30 of the multi-function device 10 receives the information transmitted in S92 from the calling device, the predetermined character string “Could not connect. Please adjust the position of the calling device and the access point.” (Hereinafter referred to as “character string CS11”) is displayed on the display unit 14.

  Hereinafter, the case where the calling device 70 and the AP 6 are not connected (that is, the case where S92 is executed or the case where the connection stop is selected in S88) is referred to as “error end”, and the calling device 70 and the AP 6 are connected. The case where the wireless setting process is completed (that is, through YES in S70, S78, and S88) is referred to as “setting completion”.

  When the wireless setting process (ST12) ends, the control unit 80 determines in ST14 whether the end of the wireless setting process is a setting end. When the end of the wireless setting process is an error end (NO in ST14), in ST16, the first processing unit 104 deletes the designated setting WS2 stored in the designated setting area 86. In this case, the user adjusts the positional relationship between the call device 70 and the AP 6. When the user finishes adjusting the positional relationship between the devices 70 and 6, the user operates the operation unit 12 of the multi-function device 10 to cause the control unit 30 of the multi-function device 10 to transmit the designated setting WS 2 to the call device 70. . Thereby, the telephone device 70 executes the wireless setting process of ST12 again. As a result, the call device 70 and the AP 6 can be arranged at a position where the call device 70 and the AP 6 can stably perform wireless communication.

  On the other hand, if the end of the wireless setting process is the end of setting (YES in ST14), the second processing unit 106 deletes the initial setting WS1 from the wireless setting work area 92 and the designated setting WS2 in the wireless setting work area 92. Store (switch the call device 70 from ad hoc mode to infrastructure mode).

  In SM 20, the control unit 30 of the multi-function device 10 acquires the information of S 70 and S 78 from the call device 70 and transmits the information indicating that the user has selected to continue the connection to the call device 70. Then, the initial setting WS1 is deleted from the wireless setting work area 42, and the designated setting WS2 is stored in the wireless setting work area 42 (the multi-function device 10 is switched from the ad hoc mode to the infrastructure mode).

  As a result, when receiving the FAX data via the PSTN 8, the second processing unit 106 of the call device 70 converts the FAX data to the multi-function device 10 via the AP 6 (that is, using infrastructure wireless communication). Send to. In addition, when a FAX transmission instruction is executed by the operation of the operation unit 12 by the user, the second processing unit 54 of the multi-function device 10 reads the original set on the scan execution unit 18 in the SM 22 and transmits the FAX data. Is generated. Next, the generated FAX data is transmitted to the call device 70 with the normal radio wave intensity via the AP 6 (that is, using infrastructure wireless communication). The control unit 80 of the call device 70 transmits FAX data to a specific device (for example, the FAX apparatus 4) via the PSTN 8.

(Effects of the first embodiment)
Referring to FIG. 7, the case where the wireless setting process (see FIG. 3) for executing the ad hoc wireless communication between the multi-function device 10 and the calling device 70 is executed is taken as an example. The effect of the embodiment will be described.

  In S102, the multi-function device 10 determines whether wireless connection with the calling device 70 is possible using a radio wave having a radio field strength of 60% (S4 in FIG. 3). When it is determined that connection is possible, in S104, the second processing unit 56 displays the character string CS1 on the display unit 14 (S6 in FIG. 3). In this case, in S <b> 106, the second processing unit 56 performs wireless communication of FAX data with the telephone device 70 using a normal radio wave intensity (100%). According to this configuration, the user can know that the multi-function device and the telephone device can stably perform wireless communication by checking the display unit 14.

  When it is determined that the connection is impossible at the radio wave intensity of 60%, the first processing unit 54 determines whether the wireless connection with the calling device 70 is possible using the radio wave of the radio wave intensity of 80% in S108. (S10 in FIG. 3).

  When it is determined that connection is possible, in S110, the first processing unit 54 displays the character string CS2 on the display unit 14 (S12 in FIG. 3). In this case, in S <b> 112, the second processing unit 56 performs wireless communication of FAX data with the telephone device 70 using a radio wave having a normal radio wave intensity (100%). According to this configuration, the user can know that the multi-function device and the call device can perform wireless communication relatively stably by checking the display unit 14.

  When it is determined that the connection is impossible at the radio wave intensity of 80%, the first processing unit 54 determines whether the wireless connection with the call device 70 is possible using the radio wave of the radio wave intensity of 100% in S114. (S10 in FIG. 3). When it is determined that the connection is possible, in S116, the first processing unit 54 displays the character string CS4 on the display unit 14 (S20 in FIG. 3). According to this configuration, the user can know that it is difficult for the multi-function device and the telephone device to perform stable wireless communication by checking the display unit 14. When the user selects to continue the connection (YES in S22 of FIG. 3), in S118, the second processing unit 56 performs radio communication of the fax data with the calling device 70 using the radio wave having the normal radio wave intensity. Run.

  When it is determined that the connection is impossible at the radio wave intensity of 100%, in S120, the first processing unit 54 displays the character string CS3 on the display unit 14 (S18 in FIG. 3). According to this configuration, the user can know that the multi-function device and the telephone device cannot perform wireless communication by checking the display unit 14.

  The wireless setting process (see FIG. 5) between the multi-function device 10 and the AP 6 and the wireless setting process (see FIG. 6) between the calling device 70 and the AP 6 are executed in the same processing procedure as the processing procedure in FIG. Is done. However, the display content of the display unit 14 changes in each wireless setting process. In the wireless setting process between the multi-function device 10 and the AP 6, the second processing unit 56 causes the display unit 14 to display the character string CS5 instead of the character string CS1. The first processing unit 54 displays the character string CS6 instead of the character string CS2, the character string CS7 instead of the character string CS3, and the character string CS8 instead of the character string CS4 on the display unit 14, respectively. The Similarly, in the wireless setting process between the calling device 70 and the AP 6, the second processing unit 56 causes the display unit 14 to display the character string CS9 instead of the character string CS1. The first processing unit 54 displays the character string CS10 in place of the character string CS2, the character string CS11 in place of the character string CS3, and the character string CS12 in place of the character string CS4 on the display unit 14, respectively. The

  In the first embodiment, since two devices (for example, the multi-function device 10 and the AP 6) that should perform wireless communication perform communication of FAX data using radio waves of normal radio field strength, It is determined whether or not the wireless communication of the wireless setting information can be executed using a radio wave having a lower radio field strength of 60%. In a situation where radio communication using a radio wave with 60% radio wave intensity is feasible, radio communication of FAX data using 100% radio wave intensity can be stably executed. On the other hand, in a situation where wireless communication using radio waves with 60% radio wave intensity is not feasible, there is a possibility that radio communication of target data using 100% radio wave intensity cannot be executed stably. According to this configuration, whether or not radio communication at a preparation stage for performing communication of FAX data (that is, wireless communication of wireless setting information) can be performed using a radio wave having a radio field strength of 60%. In order to change the contents of the subsequent processing (ie, the first and second processing) according to the determination result, an appropriate action (for example, two processings) for stably performing wireless communication between the two devices is performed. Adjust device position). Thereby, wireless communication between the two devices can be stably executed.

(Correspondence)
In the wireless setting process shown in FIG. 3, the multi-function device 10 is an example of a “wireless communication apparatus”, the call device 70 is an example of an “external device”, and the process of S2 (the process of S102 of FIG. 7) and S14 7 (the process of S114 in FIG. 7) and the process of S8 (the process of S108 in FIG. 7) are respectively “first setting communication”, “second setting communication”, and “third setting communication”. This is an example, and the initial setting WS1 is an example of “specific wireless setting information”. The process of S16 (the process of S114 of FIG. 7) is an example of the “first determination process”, and the process of S10 (the process of S108 of FIG. 7) is an example of the “second determination process”. The character string CS1 is an example of “third information”, the character string CS2 is an example of “second information”, the character strings CS3 and CS4 are examples of “first information”, and the character string CS4 Is an example of “encouragement information”, and the character string CS3 is an example of “error information”. The process of S18 and the process of S20 (the processes of S116 and 120 in FIG. 7) are examples of the “first output control process”, and the process of S12 (the process of S110 in FIG. 7) is “the second output process”. The “output control process” is an example, and the process of S6 (the process of S104 in FIG. 7) is an example of the “third output control process”. The process of S106 in FIG. 7 is an example of “second process”.

  In the wireless setting process illustrated in FIG. 5, the multi-function device 10 is an example of a “wireless communication apparatus”, the AP 6 is an example of an “external device”, and the processes of S32, S44, and S38 are “first”, respectively. 1 setting communication ”,“ second setting communication ”, and“ third setting communication ”, and the designated setting WS2 is an example of“ specific wireless setting information ”. The process of S46 is an example of a “first determination process”, and the process of S40 is an example of a “second determination process”. The character string CS5 is an example of “third information”, the character string CS6 is an example of “second information”, the character strings CS7 and CS8 are examples of “first information”, and the character string CS8 Is an example of “encouragement information”, and the character string CS7 is an example of “error information”. The process of S48 and the process of S50 are examples of the “first output control process”, the process of S42 is an example of the “second output control process”, and the process of S36 is “third output control process”. It is an example of “control processing”.

  In the wireless setting process illustrated in FIG. 6, the call device 70 is an example of “wireless communication apparatus”, the AP 6 is an example of “external device”, and the processes of S64, S80, and S72 are “ It is an example of “first setting communication”, “second setting communication”, and “third setting communication”, and designated setting WS2 is an example of “specific wireless setting information”. The process of S82 is an example of a “first determination process”, and the process of S74 is an example of a “second determination process”. The character string CS9 is an example of “third information”, the character string CS10 is an example of “second information”, the character strings CS11 and CS12 are examples of “first information”, and the character string CS12 Is an example of “encouragement information”, and the character string CS11 is an example of “error information”. The process of S86 and the process of S92 are examples of “first output control process”, the process of S78 is an example of “second output control process”, and the process of S70 is “third output control process”. It is an example of “control processing”.

  The FAX apparatus 4 is an example of “specific device”, and FAX data is an example of “target data”. Normal radio wave intensity is an example of “specific radio wave intensity”, 60% radio wave intensity is an example of “first radio wave intensity”, and 100% radio wave intensity is an example of “second radio wave intensity”. Yes, 80% radio wave intensity is an example of “third radio wave intensity”.

(Second embodiment)
In the second embodiment, the processing procedure of the wireless setting process is different. In FIG. 8, a wireless setting process (see FIG. 3) for executing ad hoc wireless communication between the multi-function device 10 and the calling device 70 is taken as an example. The first processing unit 54 of the second embodiment does not execute the determination process (S108 to S112 in FIG. 7) as to whether or not the connection is possible with the radio wave intensity of 80%. Others are the same as the first embodiment.

  Note that the wireless setting process between the multi-function device 10 and the AP 6 and the wireless setting process between the calling device 70 and the AP 6 are executed in the same processing procedure as the processing procedure of FIG. However, the display content of the display unit 14 changes in each wireless setting process. In the wireless setting process between the multi-function device 10 and the AP 6, the second processing unit 56 causes the display unit 14 to display the character string CS5 instead of the character string CS1. In addition, the first processing unit 54 displays the character string CS7 instead of the character string CS3 and the character string CS8 instead of the character string CS4 on the display unit 14, respectively. Similarly, in the wireless setting process between the calling device 70 and the AP 6, the second processing unit 56 causes the display unit 14 to display the character string CS9 instead of the character string CS1. In addition, the first processing unit 54 displays the character string CS11 instead of the character string CS3 and the character string CS12 instead of the character string CS4 on the display unit 14, respectively.

(Correspondence)
In the wireless setting process of FIG. 8, the multi-function device 10 is an example of a “wireless communication apparatus”, the call device 70 is an example of an “external device”, and the process of S202 and the process of S214 are respectively “first”. ”Setting communication” and “second setting communication”, and the process of S214 is an example of “first determination process”. The character string CS1 is an example of “third information”, the character strings CS3 and CS4 are examples of “first information”, the character string CS4 is an example of “encouragement information”, and the character string CS3 is “ It is an example of “error information”. The process of S216 and S220 is an example of the “first output control process”, and the process of S204 is an example of the “third output control process”. The process of S206 is an example of a “second process”.

(Third embodiment)
In the third embodiment, the processing procedure of the wireless setting process is different. In FIG. 9, a wireless setting process (see FIG. 3) for executing ad hoc wireless communication between the multi-function device 10 and the calling device 70 is taken as an example. The first processing unit 54 of the third embodiment does not execute the determination process (S114 in FIG. 7) as to whether or not connection is possible with 100% radio wave intensity. In the third embodiment, when the first processing unit 54 determines that the connection is possible with the radio wave intensity of 80% (S308), it displays the character string CS4 similar to S116 in FIG. 7 (S316), and the user Lets you choose whether to continue the connection. On the other hand, if the multi-function device 10 determines that connection is impossible at 80% radio wave intensity, the multi-function device 10 displays a character string CS3 similar to S120 in FIG. 7 (S320) to inform the user that wireless connection is not possible. Others (S302 to S306, S318) are the same as those in FIG. 7 (S102 to S106, S118).

  Note that the wireless setting process of the multi-function device 10 and AP6 and the wireless setting process of the calling device 70-AP6 are executed in the same processing procedure as the processing procedure of FIG. However, the display content of the display unit 14 changes in each wireless setting process. In the wireless setting process between the multi-function device 10 and the AP 6, the second processing unit 56 causes the display unit 14 to display the character string CS5 instead of the character string CS1. In addition, the first processing unit 54 displays the character string CS7 instead of the character string CS3 and the character string CS8 instead of the character string CS4 on the display unit 14, respectively. Similarly, in the wireless setting process between the calling device 70 and the AP 6, the second processing unit 56 causes the display unit 14 to display the character string CS9 instead of the character string CS1. In addition, the first processing unit 54 displays the character string CS11 instead of the character string CS3 and the character string CS12 instead of the character string CS4 on the display unit 14, respectively.

(Correspondence)
In the wireless setting process of FIG. 9, the multi-function device 10 is an example of “wireless communication apparatus”, the call device 70 is an example of “external device”, and the process of S302 and the process of S308 are respectively “first”. ”Setting communication” and “second setting communication”, and the process of S308 is an example of “first determination process”. The character string CS1 is an example of “third information”, the character strings CS3 and CS4 are examples of “first information”, the character string CS4 is an example of “encouragement information”, and the character string CS3 is “ It is an example of “error information”. The processing of S316 and S320 is an example of “first output control processing”, and the processing of S304 is an example of “third output control processing”. The process of S306 is an example of a “second process”.

(Fourth embodiment)
In the fourth embodiment, the processing procedure of the wireless setting process is different. In FIG. 10, a wireless setting process (see FIG. 3) for executing ad hoc wireless communication between the multi-function device 10 and the calling device 70 is taken as an example. That is, the multi-function device 10 of the fourth embodiment does not execute the determination process (S114 in FIG. 7) as to whether or not connection is possible with 100% radio wave intensity. In the fourth embodiment, when the multi-function device 10 determines that connection is impossible at 60% radio wave intensity (S402), the multi-function device 10 displays a character string CS3 similar to S120 in FIG. Inform users that they cannot. Others are the same as the first embodiment.

  Note that the wireless setting process between the multi-function device 10 and the AP 6 and the wireless setting process between the calling device 70 and the AP 6 are executed in the same processing procedure as the processing procedure of FIG. However, the display content of the display unit 14 changes in each wireless setting process. In the wireless setting process between the multi-function device 10 and the AP 6, the second processing unit 56 causes the display unit 14 to display the character string CS5 instead of the character string CS1. The first processing unit 54 displays the character string CS7 on the display unit 14 instead of the character string CS3. Similarly, in the wireless setting process between the calling device 70 and the AP 6, the second processing unit 56 causes the display unit 14 to display the character string CS9 instead of the character string CS1. The first processing unit 54 displays the character string CS11 on the display unit 14 instead of the character string CS3.

(Correspondence)
In the wireless setting process of FIG. 10, the multi-function device 10 is an example of “wireless communication apparatus”, the call device 70 is an example of “external device”, and the process of S402 is an example of “first setting communication”. It is. The character string CS1 is an example of “third information”. The process of S420 is a “first process”, the process of S404 is an example of a “third output control process”, and the process of S406 is an example of a “second process”.

  Also in the second to fourth embodiments, as in the first embodiment, by using the radio wave with 60% radio wave intensity, it is determined whether or not the connection is possible, and according to the determination result. Appropriate treatment (for example, adjusting the positions of the two devices) can be performed so that wireless communication between the two devices can be stably performed. Thereby, wireless communication between the two devices can be stably executed.

  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. For example, the following modifications may be adopted.

(1) In each of the above embodiments, the device on the transmission side of the connection request (that is, the multi-function device 10 in FIGS. 3 and 5 and the call device 70 in FIG. 6) A determination is made as to whether or not the connection is possible by lowering the radio wave intensity (that is, 100% radio wave intensity). However, the device on the transmission side of the connection request may transmit the connection request using a radio wave having a normal radio wave intensity. In this case, when receiving the authentication result as a response to the connection request, the device on the transmission side of the connection request may convert the radio wave intensity of the received radio wave to be low. For example, the radio wave intensity of the received radio wave may be converted to be low so that the radio wave intensity is 60%. Then, the device on the transmission side of the connection request determines that the connection is possible with the radio field strength of 60% when the radio wave converted to a low radio field strength has a radio field strength higher than a predetermined reference strength. May be. The device on the transmission side of the connection request may determine that connection is not possible at 60% radio wave intensity when the radio wave having a low radio wave intensity is converted to a radio wave intensity lower than a predetermined reference intensity. . This configuration is also included in “first setting communication using a radio wave having a first radio wave intensity lower than a specific radio wave intensity”.

(2) In the above embodiment, the data to be communicated communicated between the multi-function device 10 and the call device 70 is FAX data. That is, generally speaking, the “specific data” includes FAX data. However, the “specific data” may include voice data (for example, voice data of an answering machine), image data other than FAX data, other types of data (for example, text data), and the like.

(3) Moreover, in said Example, each part 52-56 and each part 102-106 are implement | achieved when CPU32,82 runs a program. Instead, at least a part of each of the units 52 to 56 and the units 102 to 106 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: wireless communication system, 6: access point, 10: multi-function device, 14: display unit, 52: determination unit, 54: first processing unit, 56: second processing unit, 70: call device, 76: PSTN interface, 102: determination unit, 104: first processing unit, 106: second processing unit

Claims (11)

A wireless communication device for executing wireless communication of target data to be communicated with an external device using a radio wave having a specific radio field intensity,
A determination unit that determines whether or not the first setting communication can be executed between the external device and the wireless communication apparatus using a radio wave having a first radio wave intensity lower than the specific radio wave intensity. The first setting communication includes wireless communication of specific wireless setting information for wireless communication of the target data; and
A first processing unit that executes a first process when it is determined that the first setting communication cannot be executed;
A second processing unit that executes a second process different from the first process when it is determined that the first setting communication can be performed ;
The first processing outputs first information related to inability to execute wireless communication using the radio wave of the first radio wave intensity between the external device and the wireless communication device. Including a first output control process to be output to the unit,
The wireless communication apparatus , wherein the second process does not include the first output control process . The first process further includes:
A first determination is made as to whether or not the second setting communication can be executed between the external device and the wireless communication apparatus using a radio wave having a second radio wave intensity higher than the first radio wave intensity. 1 judgment process,
The second setting communication includes wireless communication of the specific wireless setting information,
The first output control process includes:
When it is determined that the second setting communication can be performed, the first information including recommendation information for recommending that the positional relationship between the external device and the wireless communication apparatus is adjusted. Processing to be output to the output unit;
The first information including error information for indicating that wireless communication cannot be performed between the external device and the wireless communication device when it is determined that the second setting communication cannot be performed. The wireless communication apparatus according to claim 1 , further comprising: a process for causing the output unit to output. The first process further includes:
A third setting communication is performed between the external device and the wireless communication apparatus using a radio wave having a third radio wave intensity that is higher than the first radio wave intensity and lower than the second radio wave intensity. A second determination process for determining whether or not the second setting process can be executed, wherein the third setting communication includes a wireless communication of the specific wireless setting information;
When it is determined that the third setting communication can be executed, wireless communication using the radio wave having the third radio wave intensity can be executed between the external device and the wireless communication device. A second output control process for causing the output unit to output second information related to
The wireless communication apparatus according to claim 2 , wherein the first processing unit executes the first determination process when it is determined that the third setting communication cannot be executed. Said second radio wave intensity, the same with a specific radio wave intensity, radio communication apparatus according to claim 2 or 3. In the second process, the third information related to the fact that wireless communication using the radio wave of the first radio wave intensity can be executed between the external device and the wireless communication device, Including a third output control process to be output to the unit,
The first processing does not include the third output control process, the wireless communication apparatus of any one of claims 1 to 4. A wireless communication device for executing wireless communication of target data to be communicated with an external device using a radio wave having a specific radio field intensity,
A determination unit that determines whether or not the first setting communication can be executed between the external device and the wireless communication apparatus using a radio wave having a first radio wave intensity lower than the specific radio wave intensity. The first setting communication includes wireless communication of specific wireless setting information for wireless communication of the target data; and
A first processing unit that executes a first process when it is determined that the first setting communication cannot be executed;
A second processing unit that executes a second process different from the first process when it is determined that the first setting communication can be performed ;
In the second process, the third information related to the fact that wireless communication using the radio wave of the first radio wave intensity can be executed between the external device and the wireless communication device, Including a third output control process to be output to the unit,
The first process is a wireless communication apparatus that does not include the third output control process . The second process, the using specific radio field intensity, comprising the process for performing wireless communication of the target data, the wireless communication apparatus of any one of claims 1 to 6. The external device includes an interface connected to a general public line,
The target data is FAX data communicated between the external device and a specific device via the general public line,
The wireless communication apparatus according to any one of claims 1 to 7 , wherein the wireless communication apparatus is a device for executing wireless communication of the target data, which is the FAX data, with the external device. The first output control process is capable of communicating with the wireless communication apparatus, and transmits the first information to another external device including the output unit, whereby the first information is transmitted to the output unit. The wireless communication device according to any one of claims 1 to 4 , further comprising a process of outputting to the wireless communication device. A computer program for a wireless communication device for executing wireless communication of target data to be communicated with an external device using a radio wave having a specific radio field intensity,
In the computer mounted on the wireless communication device, the following processes, that is,
A determination process for determining whether or not the first setting communication can be executed between the external device and the wireless communication apparatus using a radio wave having a first radio wave intensity lower than the specific radio wave intensity. The determination processing includes the first setting communication including wireless communication of specific wireless setting information for wireless communication of the target data,
When it is determined that the first setting communication cannot be executed, the first process;
When it is determined that the first setting communication is executable, the second process is a second process different from the first process;
Was executed,
The first processing outputs first information related to inability to execute wireless communication using the radio wave of the first radio wave intensity between the external device and the wireless communication device. Including a first output control process to be output to the unit,
The second process is a computer program that does not include the first output control process . A computer program for a wireless communication device for executing wireless communication of target data to be communicated with an external device using a radio wave having a specific radio field intensity,
In the computer mounted on the wireless communication device, the following processes, that is,
A determination process for determining whether or not the first setting communication can be executed between the external device and the wireless communication apparatus using a radio wave having a first radio wave intensity lower than the specific radio wave intensity. The determination processing includes the first setting communication including wireless communication of specific wireless setting information for wireless communication of the target data,
When it is determined that the first setting communication cannot be executed, the first process;
When it is determined that the first setting communication is executable, the second process is a second process different from the first process;
Was executed,
In the second process, the third information related to the fact that wireless communication using the radio wave of the first radio wave intensity can be executed between the external device and the wireless communication device, Including a third output control process to be output to the unit,
The first process is a computer program that does not include the third output control process .

Images