JP2014078914A - Communication device, control method thereof, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display network information which is easy for a user to understand.SOLUTION: The communication device has: search means for searching a network which exists around the device itself; and display control means for list-displaying network information searched by the search means on a display section so that the network information can be identified for any one of a first network where a network ID is not hidden and a second network where a network ID is hidden. When the search means searches the plurality of second networks, the display control means displays one piece of network information indicating the plurality of searched second networks.

Description

  The present invention relates to a communication apparatus capable of displaying information on peripheral devices.

  In recent years, with the integration of wireless communication devices, not only portable personal computers (so-called notebook PCs) but also mobile phones such as printers, personal digital assistants, digital cameras, and so-called smartphones have been equipped with wireless LANs. It was.

  As an example of a method for performing wireless communication between devices, there is an infrastructure mode in which wireless LAN communication is performed via a wireless access point (AP). When using the infrastructure mode, first, when a user searches for a wireless AP, the found wireless AP is displayed on the device. Then, the user selects a wireless AP having a desired ESSID (Extended Service Set Identifier) from the displayed wireless APs, and connects to the wireless AP by inputting parameters such as an encryption key. In general, the connection is performed in such a flow.

  On the other hand, some wireless APs have a mode called a stealth mode in which ESSID information is not included in a beacon signal (Patent Document 1). When the wireless AP is in the stealth mode, when the wireless AP is searched by the device and the found wireless AP is displayed, since there is no ESSID information, the column for displaying the ESSID is displayed as blank. When connecting to a wireless AP in stealth mode, the connection can be established by selecting a wireless AP whose ESSID is blank and inputting parameters such as an ESSID and an encryption key.

JP-A-2005-176100

  However, when a plurality of stealth mode wireless APs are found by executing a search for wireless APs, there is a problem that if a plurality of blanks of ESSID are displayed, it is not known which one is the desired wireless AP.

  The communication apparatus according to the present invention includes a search unit that searches for a network that exists in the vicinity of its own device, and the network information searched by the search unit, the first network and the network ID are not concealed. Display control means for displaying a list on the display unit so that it can be identified which of the second networks is, and when the search means finds a plurality of the first networks, the display control means When network information is displayed for each searched first network and a plurality of the second networks are searched by the search means, the display control means displays one network information indicating the plurality of searched second networks. Is displayed.

  According to the present invention, even when there are a plurality of stealth mode wireless APs, a user can easily connect to a desired AP.

It is the figure which showed the structure of the radio | wireless communication apparatus which concerns on embodiment of this invention. It is an example of the screen displayed in a radio | wireless communication apparatus. It is the flowchart figure which showed the flow of the process of a radio | wireless communication apparatus. It is the flowchart figure which showed the flow of the process of a radio | wireless communication apparatus. It is the flowchart figure which showed the flow of the process of a radio | wireless communication apparatus. It is an example of the screen displayed in a radio | wireless communication apparatus. It is the flowchart figure which showed the flow of the process of a radio | wireless communication apparatus. It is an example of the screen displayed in a radio | wireless communication apparatus. It is the flowchart figure which showed the flow of the process of a radio | wireless communication apparatus. It is an example of the wireless AP information managed in the wireless communication apparatus. . It is an example of the screen displayed in a radio | wireless communication apparatus.

[First Embodiment]
FIG. 1 is a diagram illustrating a configuration of a wireless communication device 100 according to an embodiment of the present invention. As the wireless communication device 100, a digital camera, a mobile phone such as a so-called smartphone, a so-called tablet terminal, a PC, or the like can be used.

  The nonvolatile memory 101, the memory 102, the display processing unit 103, the system control circuit 105, and the wireless LAN communication unit 107 are connected to the internal bus 109. Means connected to the internal bus 109 can exchange data with each other via the internal bus 109.

  The nonvolatile memory 101 stores image data, other data, various programs for operating the system control circuit 105, and the like. The memory 102 is composed of a RAM, for example. The system control circuit 105 serving as a display control unit, a change unit, and a calculation unit controls each unit of the wireless communication apparatus 100 using the memory 102 as a work memory, for example, according to a control program stored in the nonvolatile memory 101.

  The operation unit 106 receives a user operation, generates a control signal corresponding to the operation, and supplies the control signal to the system control circuit 105. For example, the operation unit 106 includes a character information input device such as a keyboard, a pointing device such as a mouse or a touch panel, and the like as an input device that receives a user operation. In addition, a touch panel is an input device which outputs the coordinate information according to the position contacted, for example with respect to the input part comprised planarly. The system control circuit 105 controls each unit of the wireless communication apparatus 100 based on a control signal generated by the operation unit 106 in response to a user operation performed on the input device. Thereby, it is possible to cause the wireless communication apparatus 100 to perform an operation according to the user operation.

  The display control unit 103 outputs a display signal for causing the display unit 104 to display an image. The system control circuit 105 supplies a display control signal to the display control unit 103. The display control unit 103 generates a display signal based on the display control signal and outputs the display signal to the display unit 104. For example, the display control unit 103 can display a GUI screen constituting a GUI (Graphical User Interface) on the display unit 104 based on a display control signal generated by the system control circuit 105.

  In the case where a touch panel is used as the operation unit 106, the operation unit 106 and the display unit 104 can be integrally configured. For example, the touch panel is configured such that the light transmittance does not hinder the display of the display unit 104 and is attached to the display surface of the display unit 104. Then, the input coordinates on the touch panel are associated with the display coordinates on the display unit 104. Thereby, it is possible to configure a GUI as if the user can directly operate the screen displayed on the display unit 104.

  A wireless LAN communication unit 107 controls a communication function with an external device and is connected to the antenna 108.

  The configuration of the wireless communication device 100 has been described above. Hereinafter, the operation of the wireless communication apparatus 100 in the present embodiment will be described. In the present embodiment, processing when the wireless communication apparatus 100 connects to a wireless access point (AP) found by searching a network will be described.

  Note that the wireless AP in this embodiment is an example of a network management device, and has a normal mode and a stealth mode. In the normal mode, the wireless AP transmits a beacon signal including an ESSID that is an example of a network ID. In the stealth mode, the wireless AP transmits a beacon signal that does not include an ESSID. Therefore, the wireless communication apparatus 100 that has received the beacon signal from the wireless AP in the stealth mode can recognize that there is a wireless AP around itself, but cannot recognize information that identifies the network. Hereinafter, the wireless AP in the normal mode is also referred to as “normal AP”, and the wireless AP in the stealth mode is also referred to as “stealth AP”. Of course, both a wireless AP having a stealth mode and a wireless AP having only a normal mode may exist.

  Hereinafter, the outline of the operation of the wireless communication apparatus 100 will be described separately for a case where only a normal AP is found, a case where one stealth AP is found, and a case where a plurality of stealth APs are found. In the following description, the expression that an AP is found is the same as the meaning that a network formed by the AP is found. The network formed by the normal AP is an example of the first network, and the network formed by the stealth AP is an example of the second network.

<When only normal AP is found>
First, a case where only a normal AP is found will be described with reference to FIG. First, a search for a wireless network by the wireless communication device 100 is instructed by a user operation or the like. Then, the wireless communication device 100 searches for a beacon signal periodically transmitted from surrounding wireless APs. From this beacon signal, the wireless communication device 100 can recognize that a wireless AP exists around the device. The wireless AP ESSID and security information are extracted from the beacon signal found by the search, and a list of wireless APs such as the screen 201 in FIG. The screen 201 displays a list of wireless AP information including a set of the wireless AP ESSID and a key mark indicating that the security setting has been made (encryption processing is valid). This wireless AP information is an example of network information. Note that the wireless AP information list display order is the order found in the wireless network search process. In this case, since it is assumed that no stealth AP is found, the ESSIDs of all the found wireless APs are displayed.

  Here, on the screen 201, for example, if a wireless AP with an ESSID of AccessPoint — 8 is selected by a user operation, the screen transitions to an encryption key input screen shown on the screen 202.

  The screen 202 displays the authentication / encryption type that is the security type of the wireless AP selected by the user. The user inputs the encryption key of the selected wireless AP in the blank area and presses the “Next” button. The wireless communication device 100 requests connection and authentication to the selected wireless AP and establishes a connection with the wireless AP. The above is the outline of the operation when only the normal AP is found.

<When one stealth AP is found>
Next, a case where one stealth AP is found will be described. In this case, a list of wireless AP information is displayed as shown in a screen 601 in FIG. As shown in the screen 601, when the ESSID is not included in the beacon signal, the wireless AP information with the blank ESSID is added to the list display as shown in the screen 601. In the example of the screen 601, the second wireless AP found is a stealth AP. Note that even a beacon signal from a stealth AP includes information on security settings such as authentication / encryption type. Therefore, in the case of wireless AP information indicating a stealth AP whose security setting is valid, a key mark is displayed beside the blank ESSID field.

  If, for example, a stealth AP (wireless AP information with an ESSID blank) is selected by a user operation on the screen 601, a transition is made to the ESSID input screen shown on the screen 602. On the screen 602, when the user inputs the ESSID of the desired stealth AP in the blank area and presses the “Next” button, the screen transitions to the encryption key input screen shown on the screen 603.

  On the screen 603, the authentication / encryption type of the stealth AP selected by the user is displayed. This is because the authentication / encryption type can be acquired even by the stealth AP in the wireless network search process. The user inputs the encryption key of the desired wireless AP and presses the “Next” button. Then, the wireless communication device 100 requests connection and authentication to the selected wireless AP, and establishes a connection with the wireless AP. When a normal AP is selected from the list display, the operation is the same as that in FIG. The above is the outline of the operation when one stealth AP is found. In this way, the user can recognize the presence of the stealth AP in the normal wireless AP information list screen. In addition, wireless AP information with an empty ESSID can be selected, and the connection process can be performed, so that connection to a stealth AP can be performed by a procedure similar to that of a normal AP.

<When multiple stealth APs are found>
Next, a case where a plurality of stealth APs are found will be described with reference to FIG. In this case, the list of wireless APs is displayed as shown in a screen 801 in FIG. As shown in the screen 801, in this embodiment, even if a plurality of wireless APs whose ESSID is not included in the beacon signal are searched, a plurality of wireless APs whose ESSID is blank are not displayed and integrated into one column. indicate. In the present embodiment, when a plurality of stealth APs are displayed together in one column, whether or not to display a key mark is determined based on the security setting of the stealth AP found first. That is, the key mark is displayed if the security setting is set for the first stealth AP, and the key mark is not displayed if the security setting is not set for the first stealth AP.

  On the screen 801, for example, when a stealth AP is selected by a user operation, the screen transitions to an ESSID input screen shown in a screen 802. The screen 802 is the same screen as the screen 602 in FIG. 6, but the screen transition after the “Next” button is pressed is different.

  On the screen 802, when the user inputs the ESSID of the desired stealth AP in the blank area and presses the “Next” button, the screen transitions to an input screen shown on the screen 803.

  A screen 803 is a screen for allowing the user to select a desired stealth AP authentication / encryption type. This is because there are a plurality of stealth APs, and different encryption types may be set for each. When a desired stealth AP authentication / encryption type is selected by a user operation, the screen transits to an encryption key input screen shown in a screen 804.

  A screen 804 is an encryption key input screen. On the screen 804, the authentication / encryption type selected by the user on the screen 803 is displayed. The user enters the encryption key of the selected wireless AP in the blank area and presses the “Next” button. The wireless communication apparatus 100 specifies the input ESSID, requests connection and authentication to a desired wireless AP, and establishes a connection with the wireless AP. When the normal AP is selected, the operation is the same as that in FIG. The above is the outline of the operation when a plurality of stealth APs are found. In this way, it is possible to provide a screen that is visually recognizable for the user, rather than adding an item whose ESSID is blank each time a stealth AP is found. In addition, when a plurality of stealth APs are individually displayed in a list, for example, the user may select a stealth AP having a different authentication / encryption type from a desired stealth AP. In this case, even if the user inputs the ESSID or encryption key of the desired stealth AP, the user cannot connect to the desired stealth AP. On the other hand, in the present embodiment, when wireless AP information indicating stealth AP is selected, a process for inputting the encryption type is provided, so that the user can easily connect to the stealth AP desired by the user.

  Note that, as shown in FIG. 8B, an item for manual setting by the user may be included in the list display of wireless APs on the screen 201, the screen 601, and the screen 801. It is conceivable that the item to be manually set is always displayed at the bottom or top of the list display regardless of the presence or absence of the stealth AP. When “manual setting” is selected by a user operation, an SSID input screen 802, a security setting input screen 803, and an encryption key input screen 804 as shown in FIG. 8A are displayed, and the user connects to an arbitrary wireless AP. can do. It should be noted that both the manual setting column and the wireless AP information in which the ESSID is blank are preferably included in the list display. This is because even when manual settings are prepared, the user can recognize that the stealth AP exists around by displaying the wireless AP information in which the ESSID is blank.

<Processing flowchart>
Processing for realizing the above-described screen transition will be described with reference to the flowcharts of FIGS. FIG. 3 is a flowchart showing a process flow in which the wireless communication apparatus 100 according to this embodiment connects to a wireless AP. Each process in this flowchart is realized by the system control circuit 105 developing and executing a program stored in the nonvolatile memory 101 in the memory 102.

  First, in step S <b> 301, the system control circuit 105 performs a wireless network search process using the wireless LAN communication unit 107. Specifically, the wireless AP information is received by receiving a beacon signal issued by a wireless AP existing around the own device. The system control circuit 105 stores information on each wireless AP acquired by the wireless network search process in a wireless AP information area provided in the memory 102.

  In step S302, the system control circuit 105 performs a wireless AP information list display process for displaying a list of wireless AP information found in step S301 on the display unit 104. Hereinafter, this process will be described in detail.

  FIG. 4 is a flowchart showing a flow of wireless AP list display processing in the present embodiment. Each process in this flowchart is realized by the system control circuit 105 developing and executing a program stored in the nonvolatile memory 101 in the memory 102.

  In step S401, the system control circuit stores the number of wireless APs found in the wireless network search process in step S301 in the memory 102 as the value of the variable N, and proceeds to step S402.

  In S402, the system control circuit 105 sets 1 to the variable n prepared in the memory 102, and the process proceeds to S403.

  In S403, the system control circuit 105 reads the ESSID information of the nth wireless AP found from the wireless AP information stored in the wireless AP information storage area in S301, and proceeds to S404.

  In step S404, the system control circuit 105 determines whether the ESSID acquired in step S403 is concealed (ESSID information is null). With this process, the system control circuit 105 determines whether or not the wireless AP is in the stealth mode. If it is determined in S404 that the ESSID is concealed, the process proceeds to S405. If it is determined in S404 that the ESSID is not concealed, the process proceeds to S407.

  In step S405, the system control circuit 105 determines whether or not a setting for displaying wireless AP information whose ESSID column is blank (hereinafter referred to as stealth AP display setting) has already been made. If it is determined in S405 that the stealth AP display setting has already been made, the process proceeds to S413. If it is determined that the stealth AP display setting has not yet been made, the process proceeds to S406.

  In S406, the system control circuit 105 performs the stealth AP display setting, and proceeds to S408.

  On the other hand, in S407, the system control circuit 105 performs setting to display the ESSID acquired in S403, and the process proceeds to S408.

  In S408, the system control circuit 105 acquires the authentication / encryption type information of the nth wireless AP from the wireless AP information in the wireless AP information storage area, and proceeds to S409.

  In step S409, the system control circuit 105 refers to the authentication / encryption type information acquired in step S408, and determines whether security settings have been made. If it is determined in S409 that the security setting has been made, the process proceeds to S410. If it is determined in S409 that the security setting has not been made, the process proceeds to S411.

  In step S410, the system control circuit 105 performs setting for displaying a key mark (hereinafter referred to as key mark display setting) indicating that the security setting is valid, and the process proceeds to step S412.

  In step S411, the system control circuit 105 performs setting for not displaying the key mark (hereinafter referred to as key mark non-display setting) indicating that the security setting is not valid, and proceeds to step S412.

  In step S412, the system control circuit 105 determines whether the variable n is the number of wireless APs: N. If it is determined in S412 that n = N, that is, the processing is completed for all wireless AP information, the process proceeds to S413. If it is determined in S412 that n = N is not satisfied, that is, the processing has not been completed for all wireless AP information, the process proceeds to S414.

  In S414, the system control circuit 105 increments n, returns to S403, and repeats the processing of S404 to S412 until n = N.

  When the processing is completed for all wireless AP information, the system control circuit 105 displays a list of wireless APs on the display unit 104 using the display control unit 103 in S413, and ends the wireless AP list display processing. . A list of wireless APs as shown in a screen 201 in FIG. 2, a screen 601 in FIG. 6, and a screen 801 in FIG. 8A is displayed according to the number of wireless APs found. The processing up to this point is the wireless AP information list display process of S302 of FIG.

  Hereinafter, description will be made with reference to FIG. 3 again. In step S <b> 303, the user selects a desired wireless AP from the wireless AP information list displayed on the display unit 104 using the operation unit 106. As described above, the user can also select a wireless AP whose ESSID is blank. The system control circuit 105 stores in the memory 102 which wireless AP has been selected by a user operation, and proceeds to S304.

  In S304, the system control circuit 105 determines whether or not wireless AP information with an ESSID blank, that is, wireless AP information indicating a stealth AP is selected by a user operation. If it is determined that the wireless AP indicating the stealth AP has been selected, the process proceeds to S305. If it is determined that the wireless AP information indicating the stealth AP is not selected, that is, the wireless AP information indicating the normal AP is selected, the process proceeds to S306.

  In S306, the system control circuit 105 performs connection processing with the normal AP. Hereinafter, the process of S306 will be described in detail.

  FIG. 5 is a flowchart showing the flow of processing when connecting to a normal AP in this embodiment. Each process in this flowchart is realized by the system control circuit 105 developing and executing a program stored in the nonvolatile memory 101 in the memory 102.

  In step S <b> 501, the system control circuit 105 determines whether security settings have been set for the selected normal AP. If it is determined that security settings have been made, the process proceeds to S502. If it is determined that no security setting has been made, the process advances to step S503.

  In S502, the system control circuit 105 displays the screen 202 of FIG. 2 on the display unit 104, and accepts an input of an encryption key by a user operation. The user inputs the encryption key of the wireless AP selected in S303 using the operation unit 106. The system control circuit 105 stores the encryption key input by the user in the network connection processing area provided in the memory 102, and proceeds to S503.

  In step S503, the system control circuit 105 reads out information related to the wireless AP selected by the user in step S303 from the information on each wireless AP stored in the wireless AP information area of the memory 102 during the wireless network search process in step S301. Information necessary for connecting to the wireless AP from the information related to the wireless AP is stored in the network connection processing area of the memory 102, and the process proceeds to S504. Information necessary when connecting to the wireless AP includes ESSID, authentication / encryption type, channel, BSSID, and the like. However, connection is possible even if there is no channel or BSSID.

  In step S504, the system control circuit 105 performs connection processing to the wireless AP using the wireless LAN communication unit 107 based on the information stored in the network connection processing area of the memory 102 in steps S502 and S503. The above is the description of the processing when connecting to the normal AP in S306 of FIG.

  Next, a case where the process proceeds from S304 to S305 in FIG. 3 will be described. In this case, the system control circuit 105 performs connection processing with the stealth AP. FIG. 7 is a flowchart showing the flow of processing when connecting to the stealth AP in the present embodiment. Each process in this flowchart is realized by the system control circuit 105 developing and executing a program stored in the nonvolatile memory 101 in the memory 102.

  When the wireless AP information indicating the stealth AP is selected, first, in step S701, the system control circuit 105 displays the screen 602 in FIG. 6 on the display unit 104, and accepts an ESSID input by a user operation. The user inputs an ESSID of a desired stealth AP using the operation unit 106. The system control circuit 105 stores the ESSID input by the user in the network connection processing area of the memory 102, and proceeds to S702.

  In step S702, the system control circuit 105 determines whether a plurality of stealth APs are found in the wireless network search process in step S301. If it is determined that a plurality of stealth APs have been found, the process proceeds to S703. When a plurality of stealth APs are not found, that is, when it is determined that there is only one stealth AP, the process proceeds to S706.

  First, the case where it progresses to S706 is demonstrated. In step S <b> 706, the system control unit 105 displays the screen 603 in FIG. 6 on the display unit 104. As described above, the screen 603 displays a display indicating the stealth AP authentication / encryption type and an area for inputting an encryption key. The user inputs a desired stealth AP encryption key using the operation unit 106. The system control circuit 105 stores the encryption key input by the user operation in the network connection processing area of the memory 102, and proceeds to S707.

  In S707, the system control circuit 105 reads out information on the stealth AP selected by the user in S303 from the information on each wireless AP stored in the wireless AP information area of the memory 102 during the wireless network search process in S301. Then, information necessary for connecting to the wireless AP from the information regarding the stealth AP is stored in the network connection processing area of the memory 102, and the process proceeds to S708.

  In step S708, the system control circuit 105 performs connection processing to the wireless AP using the wireless LAN communication unit 107 based on the information stored in the network connection processing area of the memory 102 in steps S701, S706, and S707. The above is the description of the processing when only one stealth AP is found.

  Next, the case where it progresses to S703 from S702 is demonstrated. In step S703, the system control circuit 105 determines whether the authentication / encryption types of the plurality of stealth APs found in the wireless network search process in step S301 are all the same. If it is determined that the authentication / encryption types are all the same, the process proceeds to S705. On the other hand, if it is determined that the authentication / encryption types are not all the same, the process proceeds to S705 via S704.

  In step S704, the system control circuit 105 displays the screen 803 in FIG. 8A on the display unit 104, and accepts a user operation for selecting an authentication / encryption type. The user uses the operation unit 106 to select a desired stealth AP authentication / encryption type. The system control circuit 105 stores the authentication / encryption type selected by the user in the network connection processing area of the memory 102, and proceeds to S705. If it is determined in S703 that the authentication / encryption types are all the same, the authentication / encryption type can be specified as one, and therefore the selection process in this step is not necessary.

  In step S <b> 705, the system control circuit 105 displays the screen 804 shown in FIG. The user inputs a desired stealth AP encryption key using the operation unit 106. The system control circuit 105 stores the encryption key input by the user operation in the network connection processing area of the memory 102 and proceeds to S708.

  In step S708, the system control circuit 105 performs connection processing to the wireless AP using the wireless LAN communication unit 107 based on the information stored in the network connection processing area of the memory 102 in steps S701, S704, and S705. The above is the processing when a plurality of stealth APs are found.

  The above is the connection processing with the stealth AP in S305 of FIG. After the connection process with the wireless AP is completed, the system control circuit 105 ends the process shown in FIG.

  As described above, according to the present embodiment, when the stealth AP is found by the network search process, the wireless AP information with the ESSID blank is displayed together with the information of the normal AP, so that the presence of the stealth AP is visually recognized by the user. Can be recognized.

  In addition, by making it possible to select wireless AP information with an ESSID blank and starting processing for connecting to a stealth AP, the user can connect to a stealth AP with the same operational feeling as other normal APs. It becomes possible.

  In addition, when a plurality of stealth APs are found, only one wireless AP information whose ESSID is blank is displayed, and if selected, it is possible to connect to a desired stealth AP among the plurality of stealth APs. As a result, as compared with the case where the wireless AP information whose ESSID is blank is displayed as many as the number of stealth APs, the user does not get confused as to which information is desired stealth APs.

  Further, when the authentication / encryption types of the plurality of stealth APs are all the same, the user operation for setting the authentication / encryption type is omitted. Thereby, a user's effort can be reduced more.

  In the present embodiment, in the wireless AP information list display process of FIG. 4, when there are a plurality of stealth APs, the stealth APs are displayed in accordance with the authentication / encryption type of the stealth APs that are found first. However, such a display form is not necessarily adopted. For example, when a plurality of stealth APs are found, a key mark may be displayed only when all the plurality of stealth APs are secured. Alternatively, if only one stealth AP is found, the presence or absence of a key mark is determined according to the encryption settings of the found stealth AP. If multiple stealth APs are found, the key mark is not displayed uniformly. It may be configured as follows. By doing so, it is possible to at least prevent the situation in which the key mark is displayed even though the stealth AP is not secured and the user excludes the stealth AP from the selection target.

[Second Embodiment]
In the first embodiment, the example in which the wireless AP information is displayed in a list in the order in which it is found has been described. On the other hand, in the present embodiment, an example will be described in which a list is displayed in descending order of radio field intensity among the found wireless APs. In addition, since this embodiment has many parts in common with the first embodiment, the description of the common parts will be omitted, and description will be made focusing on the parts specific to the present embodiment.

  This embodiment is significantly different from the first embodiment in that the wireless AP information list display processing shown in FIG. 4 is performed in the first embodiment, whereas the wireless AP list display processing shown in FIG. 9 is performed. It is. Each process in this flowchart is realized by the system control circuit 105 developing and executing a program stored in the nonvolatile memory 101 in the memory 102. The process shown in this flowchart corresponds to the process performed in step S302 in FIG.

  In step S901, the system control circuit 105 reads the wireless AP information stored in the wireless AP information area of the memory 102 in the wireless network search process in step S301 of FIG. 3, and proceeds to step S902.

  FIG. 10 shows an example of wireless AP information stored in the wireless AP information area of the memory 102. In this embodiment, as shown in FIG. 10, the wireless AP ESSID, BSSID, authentication type, encryption type, channel, and radio wave intensity are managed in a table based on the wireless AP information received by the wireless network search process. The radio wave intensity is indicated by 10-level numbers, and the larger the number, the stronger the radio wave intensity.

  In step S902, the system control circuit 105 sorts the wireless AP information read in step S901 in order of radio wave intensity, and the process proceeds to step S903. When the wireless AP information of FIG. The order is 1, 5, 6, 2, 4, 3, and 7.

  Since the processing of S903 to S906 is the same as the processing of S401 to S404 described with reference to FIG. 4 of the first embodiment, the description thereof is omitted.

  In step S907, the system control circuit 105 determines whether the stealth AP display setting has already been performed. If it is determined that the stealth AP display setting has already been made, the process proceeds to S915. If it is determined that the stealth AP display setting is not set, the process proceeds to S908.

  First, the case where it progresses to S908 is demonstrated. The processing in S908 to S913 is the same as the processing in S406 to S411 in FIG.

  In S914, the system control circuit 105 writes the setting for displaying the radio wave intensity mark in the memory 102 based on the radio wave intensity of the nth stealth AP, and proceeds to S919.

  Next, a case where the process proceeds from S907 to S915 will be described. In S915, the system control circuit 105 reads the key mark display setting of the stealth AP information that has already been set, and proceeds to S916.

  In step S916, the system control circuit 105 reads the authentication / encryption type of the nth wireless AP, and proceeds to step S917.

  In step S917, the system control circuit 105 refers to the result read in step S915 and determines whether the key mark display setting of the stealth AP information has already been performed. Further, in this step, the result read in S916 is referred to, and it is determined whether or not the nth wireless AP has a security setting. If it is determined that the key mark display setting has already been made and the security is not set for the nth wireless AP, the process proceeds to S918. Otherwise, the process proceeds to S919. The first case of proceeding to S919 is a case where it is determined that the key mark display setting has already been made and the security setting has been made for the nth wireless AP. The second case is a case where the key mark display setting has not yet been made.

  In step S918, the system control circuit 105 sets the display setting of the key mark for the ESSID blank setting to non-display setting, and proceeds to step S919.

  In step S919, the system control circuit 105 determines whether the variable n is the number of wireless APs: N. If it is determined in S919 that n = N, that is, the processing is completed for all wireless AP information, the process proceeds to S921. If it is determined in S919 that n = N is not satisfied, that is, the processing has not been completed for all wireless AP information, the process proceeds to S920.

  In S920, the system control circuit 105 increments n, returns to S905, and repeats the processing of S905 to S918 until n = N.

  When the processing is completed for all wireless AP information, in S921, the system control circuit 105 displays a list of wireless APs on the display unit 104 using the display control unit 103, and performs wireless AP information list display processing. finish.

  The above is the process for displaying a list of wireless APs in the order based on the radio field intensity. FIG. 11 shows the result when the process of FIG. 9 is performed when a wireless AP as shown in FIG. 10 is found. The process for displaying the screen of FIG. 11 will be described below.

  First, the radio wave intensity is the strongest (intensity 10), and the first wireless AP is displayed at the top. Since the first wireless AP does not conceal the ESSID and has security settings, the ESSID and the key mark are displayed. Next, the radio wave intensity is the second highest (intensity 8), and the fifth wireless AP is displayed in the second row. Since the fifth wireless AP has the ESSID hidden and security settings are made, the ESSID is blank and the key mark is displayed. In the third row, the sixth wireless AP having the third highest radio wave intensity (intensity 6) is displayed. In the sixth wireless AP, the ESSID is not concealed but the security setting is not made, so the ESSID is displayed but the key mark is not displayed.

  The second radio AP (intensity 4) has the second highest radio wave intensity next to the sixth radio AP. However, the second wireless AP is a stealth AP whose ESSID is concealed. Therefore, the wireless AP information is not newly added as a list display, and is integrated with the second-stage wireless AP information that is to be displayed based on the fifth wireless AP information. In the present embodiment, even after integration, the radio wave intensity is displayed based on the radio wave intensity (stronger radio wave intensity) of No. 5 wireless AP that has already been displayed. The display / non-display of the key mark after integration depends on the determination result of S917 in FIG. In this case, the key mark display setting has already been made and the security setting has been made for the second wireless AP. Therefore, the key mark display setting is maintained. If the security setting is not set for the second wireless AP, the key mark non-display setting is set (S918 in FIG. 9).

  When the process for the second wireless AP is completed, the processes for the fourth wireless AP, the third wireless AP, and the seventh wireless AP are performed in descending order of the radio field intensity. As a result of the above processing, the screen of FIG. 11 is displayed.

  As described above, in the present embodiment, the form in which the ESSID, the radio wave intensity mark, and the key mark are displayed in the wireless AP list display and the radio wave intensity is displayed in the descending order is described. In the present embodiment, when a plurality of stealth APs are found, one stealth AP information is displayed at the position of the stealth AP having the strongest radio field intensity.

  A value obtained by averaging the radio wave intensities of a plurality of stealth APs may be used as a reference for displaying the stealth AP information. Or, when only one stealth AP is found, it is displayed at the position sorted by the radio wave intensity. When a plurality of stealth APs are found, the top or bottom is predetermined. It may be configured to display at a different position. When a plurality of stealth APs are found, it may be displayed in the ESSID column or the like that there are a plurality of stealth APs.

  Further, in the present embodiment, when a plurality of stealth APs are found, the radio wave intensity mark is displayed based on the radio wave intensity of the stealth AP having the strongest radio wave intensity. However, the radio wave intensity mark to be displayed may be determined based on a value obtained by averaging the radio wave intensity of a plurality of stealth APs. Alternatively, the radio wave intensity mark based on the radio wave intensity is displayed only when only one stealth AP is found, and the radio wave intensity mark is not displayed when a plurality of stealth APs are found. Also good.

  In this embodiment, when a plurality of stealth APs are found, a key mark is displayed only when security is set in all the stealth APs, and when there is one stealth AP with no security setting, the key mark is displayed. Is not displayed. However, the display of the key mark may be configured such that the key mark is displayed based on the authentication / encryption type of the stealth AP whose sort order is the first, as in the first embodiment. Alternatively, the key mark is displayed based on the authentication / encryption type only when only one stealth AP is found. When a plurality of stealth APs are found, the key mark is displayed regardless of the authentication / encryption type. May be configured not to be displayed.

<Other embodiments>
Although the present invention has been described in detail based on preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also included in the present invention. included. A part of the above-described embodiments may be appropriately combined. For example, wireless APs may be listed in alphabetical order of ESSID. In this case, the stealth AP item can be displayed at a predetermined position such as the top or bottom of the list display.

  Also, when a software program that realizes the functions of the above-described embodiments is supplied from a recording medium directly to a system or apparatus having a computer that can execute the program using wired / wireless communication, and the program is executed Are also included in the present invention. Accordingly, the program code itself supplied and installed in the computer in order to implement the functional processing of the present invention by the computer also realizes the present invention. That is, the computer program itself for realizing the functional processing of the present invention is also included in the present invention. In this case, the program may be in any form as long as it has a program function, such as an object code, a program executed by an interpreter, or script data supplied to the OS. As a recording medium for supplying the program, for example, a magnetic recording medium such as a hard disk or a magnetic tape, an optical / magneto-optical storage medium, or a nonvolatile semiconductor memory may be used. As a program supply method, a computer program that forms the present invention is stored in a server on a computer network, and a connected client computer downloads and programs the computer program.

Claims (15)

A search means for searching for networks existing around the aircraft;
Display control for displaying a list of network information searched by the search means on the display unit so as to identify whether the network ID is a first network whose network ID is not concealed or a second network whose network ID is concealed Means,
When a plurality of the first networks are searched by the search means, the display control means displays network information for each searched first network,
When a plurality of the second networks are searched by the search means, the display control means displays one network information indicating the searched second networks. When the first network is searched by the search means, the display control means displays a corresponding network ID as network information of the first network,
2. The communication apparatus according to claim 1, wherein when the second network is searched by the search unit, a network ID is not displayed as network information of the second network. Based on a user operation, further comprising a selection means for selecting any of the network information listed on the display unit,
3. The communication apparatus according to claim 1, wherein when the network information corresponding to the second network is selected by the selection unit, the display control unit displays a screen for accepting an input of a network ID. . A determination unit for determining whether the network searched by the search unit has security settings;
4. The display control unit according to claim 1, wherein when the determination unit determines that the security setting is performed, the display control unit displays information indicating that the security setting is performed in the network information. The communication apparatus of any one of Claims.   5. The communication apparatus according to claim 4, wherein the determination unit further determines a security type set in the network searched by the search unit.   6. The communication apparatus according to claim 5, wherein, when network information indicating a plurality of second networks is selected by the selection unit, the display control unit displays a screen for accepting an input of the security type. . A plurality of second networks are searched by the search means;
When the same type of security is set for all of the plurality of second networks and the network information indicating the plurality of second networks is selected by the selection unit, the display control unit displays the security type. Without displaying a screen that accepts input,
When different types of security are set for the plurality of second networks, and the network information indicating the plurality of second networks is selected by the selection unit, the display control unit inputs the security type. The communication apparatus according to claim 5, wherein a screen for accepting is displayed.   When one second network is searched by the search means and network information indicating the second network is selected by the selection means, the display control means displays a screen for accepting the input of the security setting type. The communication device according to any one of claims 5 to 7, wherein the communication device is not displayed.   When displaying the network information indicating the plurality of second networks, the display control unit can identify that the security setting is performed regardless of the security setting set for each of the plurality of second networks. The communication apparatus according to claim 4, wherein no display is performed.   The communication apparatus according to claim 1, wherein the display control unit displays the network radio wave intensity searched by the search unit as the network information.   11. The display control means, when displaying network information indicating the plurality of second networks, does not display the field intensity regardless of the field intensity of each of the plurality of second networks. The communication apparatus as described in.   The communication apparatus according to claim 1, wherein the first network and the second network are formed by wireless LAN access points.   The communication device according to claim 12, wherein the search means searches for the network by receiving a beacon signal transmitted from the access point. A communication device control method comprising:
A search process for searching for networks in the vicinity of the aircraft,
A display step of displaying a list of the network information searched in the search step on the display unit so that the network information can be identified as the first network whose network ID is not concealed or the second network whose network ID is concealed. And
When a plurality of the first networks are searched in the search step, the display step displays network information for each searched first network,
When a plurality of the second networks are searched in the search step, the display step displays one network information indicating the searched plurality of second networks.   A computer-executable program that causes a computer to function as each unit of the communication device according to any one of claims 1 to 13.

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