JP5202418B2 - Terminal and terminal control program - Google Patents

Description

  The present invention relates to a terminal used in a wireless communication system and a control program for the terminal.

  A wireless communication system has more communication troubles than a wired communication system due to its characteristics. One of the troubles of such a wireless communication system is that a terminal cannot connect to a wireless network.

  Conventionally, when a terminal fails to connect to the wireless network, the access point configuring the wireless network notifies the terminal that the connection has failed, regardless of the cause of the connection failure. The user recognized that the connection failed as an error.

  As a reason why the terminal cannot connect to the wireless network, there is a case where the terminal cannot receive the radio wave of the access point constituting the wireless network desired to be connected.

  In the conventional technology, whether the terminal can receive the radio waves of the access points constituting the wireless network that is desired to be connected, depending on whether or not the terminal can receive a beacon including the SSID of the wireless network that is desired to be connected from the access point. It was possible to specify whether or not (see, for example, Patent Document 1).

  Therefore, in the conventional technology, the terminal can specify that the connection to the wireless network has failed and that the cause is that the terminal cannot receive the radio waves of the access points that constitute the wireless network. It was. However, in the prior art, it has been impossible to identify the reason why the terminal cannot receive radio waves from the access point.

JP 2006-33251 A

  There is a case where the power of the access point is OFF as a cause of the inability to receive radio waves. In this case, the user can quickly eliminate the failure that prevents connection to the access point simply by turning on the power of the access point.

  The present invention makes it possible to recognize that when a terminal fails to connect to a wireless network, the cause is that the access point constituting the wireless network is turned off. An object of the present invention is to provide a terminal capable of quickly eliminating a failure that prevents connection to a network.

To achieve the above object, a terminal according to an embodiment of the present invention includes an input unit for designating a wireless network to attempt a connection, the connection comprising a first identifier that identifies the wireless network specified by the input unit set the setting information, a communication unit to attempt the connection to the designated wireless network, a first identifier of the wireless network to which the own terminal second identifier and the access point capable of communicating access point to configure an obtaining unit that obtains, when the connection is successful, the first identifier and the second identifier and the own terminal is the second identifier capable of communicating access point of the access points constituting the wireless network of the wireless network to which the connection is successful and memory for storing connection history information including the first identifier of the wireless network to which the access point is configured If, a the connection determining section which causes the connection fails in case of failure, the determination unit includes first identifier of the connection setting information, the acquiring unit acquires when the connection fails not included in the first identifier of a wireless network capable of communicating access point that is configured and second identifiers of the communicable access points acquired by the acquiring unit when the connection has failed, the said connection history information The second identifier of the access point that is not included in the second identifier of the access point that configures the wireless network that has succeeded in connection and is acquired by the acquisition unit when the connection fails is the self- identification of the connection history information. If the terminal is included in the second identifier capable of communicating access point, wireless networks cause the connection fails specified in the input section Determining that the power of the access point constituting the click is turned OFF.

The terminal according to one embodiment of the present invention is to set an input unit for specifying a wireless network to attempt to connect, the connection setting information including a first identifier for identifying the wireless network specified by the input unit a communication unit to attempt the connection to the designated wireless network, an acquisition unit for acquiring first identifier of the wireless network to which the own terminal second identifier and the access point capable of communicating access point configuration, when the connection is successful, the first identifier and the second identifier and the own terminal is the second identifier and the access point capable of communicating access point of the access points constituting the wireless network of the wireless network to which the connection was successful configuration a storage unit for storing connection history information including the first identifier of the wireless network, the connection is unsuccessful And a said connection determining section which causes failed if the determination section, the first identifier is capable of communicating access point acquired by the acquiring unit when the connection fails the connection setting information wireless network but not included in the first identifier of the wireless network configuration, and a second identifier of the communicable access points acquired by the acquiring unit when the connection fails, said connection of said connection history information has succeeded not included in the second identifier of the access point constituting the and first identifier of a wireless network capable of communicating access point acquired by the acquiring unit when the connection fails to configuration, the terminal itself of the connection history information If There included in the first identifier of a wireless network capable of communicating access point configuration, causes the connection fails before Determining that the power of the access point included in the wireless network specified in the input unit is OFF.

The terminal control program according to an embodiment of the present invention includes an input function for specifying a wireless network to attempt to connect, the connection setting information including a first identifier for identifying the wireless network specified by the input function set acquires the communication function to attempt the connection to the designated wireless network, a first identifier of the wireless network to which the own terminal constituting the second identifier and the access point capable of communicating access point acquires function and, when the connection is successful, the second identifier and the access of the second identifier and the own terminal can communicate access point of the access points constituting the first identifier and the wireless network of the wireless network to which the connection is successful storing connection history information including the first identifier of the wireless network point constitutes And憶function, and a said connection determining function cause of failure when the connection fails, the determination function, the first identifier of the connection setting information, the acquisition function when the connection fails There is not included in the first identifier of a wireless network capable of communicating access point acquired constitutes, and the second identifier of the communicable access points acquired function is obtained when the connection fails, the connection history information the connection is not included in the second identifier of the access point constituting the wireless network success, and the second identifier of the communicable access points acquired function is obtained when the connection fails, the connection history information when the own terminal is included in the second identifier capable of communicating access point, cause the connection fails specifies the input function Determining that the power of the access point is OFF included in the wireless networks.

  In the terminal of the present invention, it can be recognized that the cause of the failure of the terminal to connect to the wireless network is that the access point constituting the wireless network is turned off. Even if a failure that cannot be connected to occurs, the user can quickly resolve this failure.

1 is a block diagram of a wireless communication system according to a first embodiment. The figure explaining the cause of the connection failure to the wireless network of the terminal of 1st Embodiment. The block diagram of the terminal which concerns on 1st Embodiment. The flowchart which shows operation | movement of the terminal of 1st Embodiment. The flowchart which identifies the cause of the connection failure to the wireless network of the terminal of 1st Embodiment. The figure which shows the display screen of the connection setting of the terminal of 1st Embodiment. The figure which shows the display screen which produces the connection setting information of the terminal of 1st Embodiment. The figure which shows the connection log information of the terminal of 1st Embodiment. The figure which shows the display screen which displayed the cause of the connection failure of the terminal of 1st Embodiment. The figure which shows the display screen which displayed the cause of the connection failure of the terminal of 1st Embodiment. The figure which shows the display screen which displayed the cause of the connection failure of the terminal of 1st Embodiment. The figure which shows the display screen which displayed the cause of the connection failure of the terminal of 1st Embodiment. The figure which shows the display screen which displayed the cause of the connection failure of the terminal of 1st Embodiment. The figure which shows the display screen which displayed the cause of the connection failure of the terminal of 1st Embodiment. The figure which shows the connection log | history information of the terminal of the modification of 1st Embodiment. The block diagram of the terminal of the modification 5 of 1st Embodiment.

(First embodiment)
FIG. 1 is a block diagram showing a wireless communication system according to the first embodiment.

  The wireless communication system according to the present embodiment is assumed to be a wireless communication system conforming to the IEEE 802.11 standard. For example, IEEE 802.11g.

  As shown in FIG. 1, the wireless communication system according to the present embodiment includes a terminal 1 and wireless networks 3a, 3b, 3c, and 3d, and access that configures the wireless networks 3a, 3b, 3c, and 3d. It has points 2a, 2b, 2c, 2d. In the wireless communication system, there are access points 2a, 2b, 2c where the terminal 1 can communicate, and an access point 2d where the terminal 1 cannot communicate. For example, the access points 2 a, 2 b, and 2 c at the communicable positions are access points in the same room of the same building as the terminal 1 and are access points that are in a positional relationship capable of wireless communication with the terminal 1. The access point 2d in a position where communication is not possible is an access point located in another building with the terminal 1, and is an access point not in a positional relationship capable of wireless communication with the terminal 1.

  The access points 2a, 2b, 2c, 2d can be switched on and off.

  Hereinafter, the access points 2a, 2b, 2c, and 2d will be collectively described as the access point 2. The wireless networks 3a, 3b, 3c, 3d will be collectively described as the wireless network 3.

  For example, when the power cord of the access point 2 is connected to an outlet, the power is turned on, and when the power cord is removed from the outlet, the power is turned off. When the access point 2 is powered on, the terminal 1 in a communicable position and the wireless network 3 constituted by the access point 2 can be connected. On the other hand, when the power of the access point 2 is OFF, the terminal 1 and the access point 2 cannot communicate. Therefore, the terminal 1 cannot be connected to the wireless network 3 formed by the access point 2.

  When the power is turned on, the access point 2 periodically broadcasts data including information called a beacon frame on the wireless communication section. The terminal 1 can identify the access point 2 capable of wireless communication by receiving the beacon frame.

  On the other hand, when the power is OFF, the access point 2 does not broadcast data including information called a beacon frame onto the wireless communicable section. When the access point 2 is powered off, the terminal 1 does not recognize the access point 2 as an access point capable of wireless communication.

  The beacon frame includes a value serving as an identifier of the access point 2 called a BSSID (Basic Service Set Identifier). Usually, the MAC address of the access point is used as the BSSID.

In addition, the beacon frame may include an identifier called SSID (sometimes referred to as ESSID, but here referred to as SSID). On the other hand, the beacon frame may not include the SSID. The SSID is an identifier for identifying the wireless network 3.
Since the BSSID is an identifier for specifying the access point 2, one access point 2a, 2b, 2c, and 2d is assigned.

  On the other hand, the SSID is an identifier that identifies the wireless network 3 formed by the access point 2. The same SSID may be assigned to a plurality of access points 2. This is because a plurality of access points 2 may constitute one wireless network 3. For example, each of the access points 2a and 2b may constitute the wireless network 3a. In that case, the same SSID is assigned to the access points 2a and 2b.

  The SSID is an identifier that can be changed by the user.

  The terminal 1 is connected to the wireless network 3 via the access point 2. For example, when the terminal 1 starts connection to a certain wireless network 3, the terminal 1 transmits a message for connection to the access point 2 configuring the wireless network 3. Thereafter, data is transmitted and received as a procedure for establishing a connection between the terminal 1 and the access point 2. A message and data transmitted from the terminal 1 to the access point 2 in this series of procedures are referred to as “connection setting information”. If the connection setting information transmitted from the terminal 1 is not incomplete, the terminal 1 can connect to the wireless network 3 formed by the access point 2. On the other hand, if the connection setting information transmitted by the terminal 1 is incomplete, the terminal 1 cannot connect to the wireless network 3 formed by the access point 2.

  As described above, the reason why the terminal 1 cannot connect to the network 3 is that the access point 2 is powered off and the connection setting information of the terminal 1 is incomplete.

  Here, “the connection setting information is incomplete” is assumed to be a case where inconsistency occurs between the connection setting information of the terminal 1 and the connection setting information set in the access point.

  When the terminal 1 fails to connect to the wireless network 3 and the cause is that the power of the access point 2 is OFF, “the power of the access point 2 is OFF because the connection failed” Can be specified.

  In the following, a method for specifying “the cause of connection failure that the power of the access point 2 is OFF” will be described with reference to FIG.

  The terminal 1 compares the information of the access point 2 that currently exists around the terminal 1 with the information of the access point 2 that has existed in the vicinity of the terminal 1 in the past. It can be specified that the power supply is OFF. For example, consider a case where the terminal 1 tries to connect to the wireless network 3b formed by the access point 2b and the connection fails. At this time, when the terminal 1 is connected to the past wireless network 3b, the access point 2 that was communicable with the access point 2 that is currently communicable is compared. As a result, it is assumed that the access points 2 that can communicate in the past are the access points 2a, 2b, and 2c, and the access points that can currently communicate are the access points 2a and 2c. From this communicable access point information, the terminal 1 can determine that the cause of the failure to connect to the wireless network 3b formed by the access point 2b is that the access point 2b is powered off.

  FIG. 3 shows a block diagram of the terminal 1 according to the first embodiment.

  The terminal 1 is, for example, a PC, a PDA, or a mobile phone.

  As shown in FIG. 3, the terminal 1 includes a communication unit 101 that communicates with the access point 2, an input unit 102 that a user designates a wireless network 3 that the user desires to connect with the mouse 110, and each wireless network. A first storage unit 103 that stores connection setting information for connecting to the wireless network 3, and a connection to the wireless network 3 specified by the input unit 102 using the connection setting information stored in the first storage unit 103. And a connection unit 104 that instructs the communication unit 101. In response to an instruction from the connection unit 104, the communication unit 101 transmits connection setting information and performs a connection process to the wireless network 3 desired by the user.

  Further, the determination unit 105 determines whether the connection process to the wireless network 3 is successful. Specifically, success or failure of the wireless network 3 is determined based on data from the access point 2 received by the communication unit 101. When the communication unit 101 receives a signal indicating that the connection from the access point 2 to the wireless network 3 has been established, the determination unit 105 determines that the connection to the wireless network 3 has been successful. When the communication unit 101 receives an error signal from the access point 2 or when a predetermined time has passed without receiving any signal, the determination unit 105 determines that the connection to the wireless network 3 has failed.

  Moreover, the determination part 105 determines the cause, when the connection to the wireless network 3 fails.

  The peripheral information acquisition unit 106 instructs the communication unit 101 to collect information on the access points 2 in the vicinity of the terminal 1 and acquires information on the access points 2 in the vicinity. The peripheral information acquisition unit 106 acquires information on the access points 2 in the vicinity, both when the connection to the wireless network 3 fails and when the connection is successful. The communication unit 101 collects information on the access points 2 in the vicinity in accordance with instructions from the peripheral information acquisition unit 106. Here, it is assumed that the access point 2 in the vicinity is the access point 2 in a position where the terminal 1 can communicate.

  Here, the peripheral information acquisition unit 106 collects information on the access points 2 in the vicinity by active scanning or passive scanning. According to the active scanning, the terminal 1 makes a probe request and receives the probe response of the access point 2 to collect information on the access points 2 in the vicinity. On the other hand, according to passive scanning, information on access points 2 in the vicinity can be collected by receiving a control signal including a beacon frame of the access point 2.

  The second storage unit 107 stores connection history information. Here, the connection history information refers to information on the access points 2 constituting the connected wireless network 3 and the access points 2 around the terminal 1 when the terminal 1 has been successfully connected to the wireless network 3 in the past. Information. The second storage unit 107 stores connection history information every time a connection is successful. For example, if the connection to the wireless network 3 whose wireless network names (SSID) are mynetwork and myoffice has been successful in the past, connection history information for each of mynetwork and myoffice is stored. On the other hand, if the wireless network 3 whose wireless network name is mynetwork has been successful twice, the connection history of the two successful times is stored.

  When the terminal 1 fails to connect to the wireless network 3, the determination unit 105 includes information on the access point 2 in the vicinity acquired by the peripheral information acquisition unit 106, connection history information stored in the second storage unit 207, and Determine the cause of the connection failure. In the determination unit 105, the reason for the connection failure is “whether the connection setting information is insufficient”, “whether the access point 2 is turned off”, or “whether the connection point is insufficient or the access point 2 is turned off. Is determined.

  Next, an operation method of the wireless communication system according to the present embodiment will be described.

  FIG. 4 is a flowchart showing an operation method of the terminal 1 according to the present embodiment. FIG. 5 is a flowchart illustrating a method for determining the cause of the connection failure when the terminal 1 fails to connect to the wireless network 3.

  First, the terminal 1 performs a procedure for establishing a connection to the wireless network 3 (S10).

  Specifically, first, the input unit 102 inputs the wireless network 3 that the user of the terminal 1 desires to connect to. FIG. 6 shows the wireless network 3 connection settings and their operation buttons displayed on the display screen 111 of the terminal 1. FIG. 6 shows that the user can connect to three networks, mynetwork, myoffice, and hotspot, change connection settings, and the like. The user inputs the wireless network desired to be connected to the input unit 102 by pressing the connection button of the wireless network 3 desired to be connected on the display screen 111 with the mouse 110. Next, the connection unit 104 that receives the instruction from the input unit 102 acquires connection setting information for the wireless network 3 that is desired to be connected from the first storage unit 103. Next, the communication unit 101 starts connection establishment procedures for the wireless network 3 by transmitting connection setting information to the access point 2 in accordance with an instruction from the connection unit 104. Here, the connection setting information is information including the SSID (Service Set Identifier) of the wireless network 3. The connection setting information further includes the type of security used for connection with the wireless network 3, the data encryption method, and the security key. The communication unit 101 sequentially transmits these connection setting information in accordance with a procedure for establishing a connection to the wireless network 3 and performs a connection establishment procedure. As described above, the connection setting information is stored in the first storage unit 103. When the user creates or changes the connection setting information, the user presses the edit button on the wireless network connection setting display screen of FIG. 6 to display the setting screen of FIG. 7 and fill in the setting screen of FIG. I do.

  Next, the terminal 1 determines the result of establishing a connection to the wireless network (S11).

  Specifically, when the communication unit 101 receives a signal that the connection from the access point 2 to the wireless network 3 has been established, the determination unit 105 determines that the connection to the wireless network 3 has been successful.

  When the communication unit 101 receives an error signal from the access point 2 or when a predetermined time has passed without receiving any signal, the determination unit 105 determines that the connection to the wireless network 3 has failed.

  If the connection is successful, the terminal 1 acquires information on the access points 2 around the terminal 1 (S12). Specifically, the peripheral information acquisition unit 106 transmits the probe request to the wireless communication section via the communication unit 101, thereby obtaining the BSSID and SSID of the peripheral access point 2 as information on the peripheral access point 2. get.

  Hereinafter, “SSID for specifying the wireless network 3 formed by the access point 2” will be referred to as “SSID of the access point 2”.

  Note that the terminal 1 may acquire only BSSID as information on the peripheral access point 2 and may not acquire the SSID. Further, information on the peripheral access point 2 may be acquired by passive scanning.

  If the connection to the wireless network 3 is successful, the terminal 1 stores the connection history information (S13). Specifically, the peripheral information acquisition unit 106 stores in the second storage unit 107 the BSSID and SSID of the peripheral access point 2 and the BSSID and SSID of the access point 2 that has been successfully connected. FIG. 8 shows an example of connection history information. Here, the BSSID corresponding to the SSID of the peripheral access point 2 that matches the SSID of the access point 2 that has been successfully connected is the BSSID of the access point 2 that has been successfully connected. Note that the BSSID may be stored as the connection history information, and the SSID may not be stored.

  On the other hand, when the connection to the wireless network 3 has failed (S11), the terminal 1 determines the cause of the failure.

  First, the terminal 1 checks whether or not the access point 2 corresponding to the wireless network 3 for which connection is attempted exists in the vicinity of the terminal 1. (S14).

  Specifically, first, the peripheral information acquisition unit 106 makes a probe request via the communication unit 101, thereby obtaining information including the BSSID and SSID of the peripheral access point 2 as information of the peripheral access point 2. get. The peripheral information acquisition unit 106 may acquire information on the peripheral access point 2 when the communication unit 101 receives a beacon signal including the SSID and BSSID from the access point 2.

  When the SSID of the wireless network 3 for which connection is attempted is included in the SSID of the wireless network 3 configured by the peripheral access point 2, the determination unit 105 determines that the access point 2 corresponding to the wireless network 3 for which connection is attempted is a terminal It is determined that it exists in the vicinity of 1. On the other hand, when the SSID of the wireless network 3 that has been connected is not included in the SSID of the wireless network 3 that is configured by the peripheral access point 2, the access point 2 that corresponds to the wireless network 3 that has been connected is It is determined that it does not exist.

  When the determination unit 105 determines that the access point 2 corresponding to the wireless network 3 to which connection is attempted is present in the vicinity of the terminal 1, the cause of the connection failure is determined to be “the setting of the connection setting information is incomplete”. (S15). In this case, the notification unit 108 displays on the terminal display screen 111 that the cause of the connection failure is “the setting of the connection setting information is incomplete”, and notifies the user of the cause of the connection failure. An example of the notified display screen 111 is shown in FIG.

When the terminal 1 determines that the access point 2 corresponding to the wireless network 3 to which connection is attempted does not exist in the vicinity of the terminal 1, the terminal 1 performs different processing depending on whether or not the second storage unit 107 stores the connection history information. Do. (S16)
When the connection history information is not in the second storage unit 107, the determination unit 105 determines that the cause of the connection failure is “the connection setting information is incomplete or the access point 2 is powered off”. . Then, the notification unit 108 notifies the user that the cause of the connection failure is “the setting of the connection setting information is incomplete or the power of the access point 2 is OFF” (S17). . An example of the notified display screen 111 is shown in FIG.

  On the other hand, when the second storage unit 107 stores the connection history information, the determination unit 105 acquires the connection history information from the second storage unit 107 (S18).

  Further, the determination unit 105 acquires information on the access points 2 around the terminal 1 (S19). Specifically, the peripheral information acquisition unit 106 acquires information including the BSSID and SSID of the peripheral access point 2 as information of the peripheral access point 2 by making a probe request via the communication unit 101. . The determination unit 105 acquires information including the BSSID and SSID of the peripheral access point 2.

  The determination unit 105 further determines the cause of the connection failure from the acquired connection history information and information on the peripheral access points 2 (S20).

  The determination unit 105 determines whether there is an access point 2 constituting the wireless network 3 to which the terminal 1 has connected in the past among the peripheral access points 2 (S201). Specifically, the determination unit 105 has connected in the past when at least one of the BSSIDs of the neighboring access points 2 is the BSSID of the access point 2 constituting the wireless network 3 that has been successfully connected in the past. It is determined that the access point 2 configuring a certain wireless network 3 is in the access points 2 around the terminal 1. On the other hand, when all of the BSSIDs of the peripheral access points 2 are not BSSIDs of the access points 2 constituting the wireless network 3 that has been successfully connected in the past, the access points 2 constituting the wireless network 3 that has been connected in the past are It is determined that the access point 2 is not in the vicinity of the terminal 1.

  When the determination unit 105 determines that the peripheral access point 2 includes the access point 2 that constitutes a wireless network that the terminal 1 has connected to in the past, the cause of the terminal 1 having failed to connect is as follows. It is determined that “the connection setting information is incompletely set” (S202). In this case, the notification unit 108 notifies the user by displaying on the display screen 111 of the terminal 1 that the cause of the connection failure is “the setting of the connection setting information is incomplete”. An example of the notified display screen 111 is shown in FIGS. As shown in FIG. 11, the setting of the wireless network configured by the access point 2 may be changed because the connection setting information is incompletely set. Specifically, the past SSID is mynetwork and the current SSID is mywlan. In this case, even if the terminal 1 is set to mynetwork in order to connect to the wireless network 3, the terminal 1 cannot be connected due to incomplete settings.

  When the determination unit 105 determines that there is no access point 2 constituting the wireless network 3 to which the terminal 1 has been connected in the past in the peripheral access point 2, the determination unit 105 determines that the peripheral access point 2 In step S203, it is determined whether there is an access point 2 that has existed around the terminal 1 in the past. Specifically, when the BSSID of the peripheral access point 2 is included in the BSSID of the access point 2 that existed around the terminal 1 in the past of the connection history information, the determination unit 105 determines whether the access point existed in the past in the past. 2 is in the access point 2 around the terminal 1. On the other hand, if the BSSID of the peripheral access point 2 does not match the BSSID of the access point 2 existing in the vicinity of the terminal 1 in the connection history information in the past, However, it is determined that there is no access point 2 present around the terminal 1. In addition, although the determination part 105 used BSSID as the information of the surrounding access point 2, you may perform determination using SSID.

  If the determination unit 105 determines that there is an access point 2 that has existed in the past in the vicinity of the terminal 1 among the peripheral access points 2, the cause of the failure of the connection of the terminal 1 is “the power supply of the access point 2 Is determined to be “OFF” (S204). In this case, the notification unit 108 notifies the user that the cause of the connection failure is “the access point 2 is powered off” on the display screen 111 of the terminal 1. An example of the notified display screen 111 is shown in FIG.

  Further, when the determination unit 105 determines that there is no access point 2 that has existed in the vicinity of the terminal 1 in the past in the peripheral access points 2, the cause that the terminal 1 failed to connect is “connection setting” It is determined that there is an incomplete information setting (S205). In this case, the notification unit 108 notifies the user that the cause of the connection failure is “the connection setting information is insufficiently set” on the display screen 111 of the terminal. An example of the notified display screen 111 is shown in FIG. As shown in FIG. 14, there is a case where the wireless network 3 constituted by the access point 2 has not been used at this place as a cause of the incomplete setting of the connection setting information. This is because no access point 2 existed around the terminal 1 in the past among the peripheral access points 2. In this case, as shown on the display screen 111, the notification unit 108 may instruct the user to newly create connection setting information or change the setting.

  As described above, according to the terminal 1 according to the present embodiment, when the terminal 1 cannot connect to the wireless network 3 configured by the access point 2, the reason why the terminal 1 cannot connect to the wireless network 3 configured by the access point 2 is the power source. It can be specified whether or not the connection setting information is incomplete. If the reason why the access point 2 cannot connect to the wireless network 3 is that the power of the access point 2 is OFF, the trouble that cannot be connected to the wireless network 3 can be quickly solved by turning on the power of the access point. . For example, when the power cord of the access point 2 is disconnected, the user can turn on the power by inserting the power cord into the outlet.

  Hereinafter, modified examples of the terminal 1 of the present embodiment will be described.

  For example, as a first modification, when storing the connection history information, the second storage unit 107 may store the time (time stamp) when the connection history information is stored together with the connection history information. In this case, the terminal 1 may delete the connection history information at a time exceeding a certain threshold according to the time stamp. Therefore, the terminal 1 can delete the connection history information stored for a predetermined time.

  As a second modification, when the second storage unit 107 successfully connects to the wireless network 3 specified by a certain SSID and stores the connection history information, the second storage unit 107 previously stores the wireless network 3 specified by the same SSID. When the connection history information corresponding to the access point 2 to be configured is stored, the previously stored connection history information may be deleted.

  Further, as the third modification, when storing the connection history information, the second storage unit 107 previously stores the connection history information corresponding to the access point 2 configuring the wireless network 3 corresponding to the same SSID. In such a case, it is not necessary to delete the previously stored connection history information. In this case, the connection history information is the sum of the previously stored connection history information and the latest stored connection history information for the same SSID.

  Further, as a fourth modification, when storing the connection history information, the second storage unit 107 stores only the information of the access point 2 that is in the power-on state for a specified time or more among the information of the peripheral access points 2. May be. The second storage unit 107 determines whether the access point 2 is in a power-on state for a specific time or not, and the time stamp value in the beacon transmitted by the access point 2 exceeds a preset threshold value. Judgment is made by whether or not it is a thing.

  FIG. 15 shows an example in which the second storage unit 107 stores the time stamp of the time when the connection history information is stored and also stores the time stamp of the beacon.

  According to the first to fourth modifications, the amount of connection history information stored in the second storage unit 107 is reduced, so that memory can be saved.

  Next, the modified example 5 is a case where the second storage unit 107 stores BSSID in the connection history information as a hash value using a hash function.

  In this case, for example, as illustrated in FIG. 16, the terminal 200 further includes a conversion unit 109.

  The conversion unit 109 sends a hash value obtained by converting the BSSID of the peripheral access point 2 received by the communication unit 101 into a hash function to the peripheral information acquisition unit 106.

  The second storage unit 107 stores the BSSID of the peripheral access point 2 as a hash value.

  Further, the determination unit 105 can identify the cause of the connection failure using the BSSID of the peripheral access point 2 converted into the hash value and the connection history information converted into the hash value. Since BSSID can also serve as privacy information, privacy can be protected by converting it into a hash value.

  Note that the terminal according to the present embodiment can also be realized by using a general-purpose computer device as basic hardware. That is, the communication unit 101, the input unit 102, the connection unit 104, the determination unit 105, the peripheral information acquisition unit 106, and the notification unit 108 can be realized by executing a program on the processor mounted on the computer device. . At this time, the terminal can be realized by executing the above program. At this time, the terminal may be realized by installing the above program in a computer device in advance, or may be stored in a storage medium such as a CD-ROM or distributed through the network, You may implement | achieve by installing this program in a computer apparatus suitably. In addition, the first storage unit 103 and the second storage unit 107 include a memory, a hard disk or a storage medium such as a CD-R, a CD-RW, a DVD-RAM, a DVD-R, or the like that is built in or externally attached to the computer device. Can be realized by appropriately using.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from the previous components shown in the embodiment. Furthermore, the constituent elements over different embodiments may be appropriately combined.

  For example, the terminal includes a connection communication unit having the functions of both the connection unit 104 and the communication unit 101, and a peripheral information acquisition communication unit having the functions of both the peripheral information acquisition unit 106 and the communication unit 101. Also good. In this case, the terminal does not include the connection unit 104, the communication unit 101, and the peripheral information acquisition unit 106.

  The terminal may be set by the user directly inputting connection setting information through the input unit 102. In this case, the first storage unit 103 may not be provided.

  DESCRIPTION OF SYMBOLS 1,200 ... Terminal, 2a, 2b, 2c, 2d ... Access point, 3a, 3b, 3c, 3d ... Wireless network, 101 ... Communication unit, 102 ... Input unit, 103 .. First storage unit 104... Connection unit 105. Determination unit 106. Peripheral information acquisition unit 107 107 Second storage unit 108 Notification unit 109. Conversion unit, 110 ... mouse, 111 ... display screen

Claims (9)

An input unit for specifying a wireless network to attempt to connect,
A communication unit configured to set connection setting information including a first identifier for identifying the wireless network specified by the input unit, attempts the connection to the designated wireless network,
An acquisition unit for acquiring a second identifier of an access point with which the terminal can communicate and a first identifier of a wireless network formed by the access point;
When the connection is successful, the first identifier and the second identifier and the own terminal is the second identifier and the access point capable of communicating access point of the access points constituting the wireless network of the wireless network to which the connection was successful configuration A storage unit for storing connection history information including a first identifier of a wireless network to be
A determination unit that determines a cause of the failure of the connection when the connection fails;
The determination unit includes a first identifier of the connection setting information that is not included in a first identifier of a wireless network configured by a communicable access point acquired by the acquisition unit when the connection fails, and the connection is not The second identifier of the communicable access point acquired by the acquisition unit at the time of the failure is not included in the second identifier of the access point constituting the wireless network in which the connection is successful in the connection history information, and the connection is not If the second identifier of the communicable access point acquired by the acquisition unit at the time of the failure is included in the second identifier of the access point communicable with the terminal of the connection history information, the cause of the connection failure Is a terminal that determines that the power of the access point constituting the wireless network specified in the input unit is OFF. The terminal according to claim 1, wherein the first identifier is an SSID. The terminal according to claim 2, wherein the second identifier is a BSSID. An input unit for specifying a wireless network to be connected; and
A communication unit that sets connection setting information including a first identifier that identifies a wireless network designated by the input unit, and tries the connection to the designated wireless network;
An acquisition unit for acquiring a second identifier of an access point with which the terminal can communicate and a first identifier of a wireless network formed by the access point;
When the connection is successful, the first identifier of the wireless network that has succeeded in connection and the second identifier of the access point that constitutes the wireless network and the second identifier of the access point that can be communicated by the terminal itself and the access point are configured A storage unit for storing connection history information including a first identifier of a wireless network to be
A determination unit that determines a cause of the failure of the connection when the connection fails;
  The determination unit includes a first identifier of the connection setting information that is not included in a first identifier of a wireless network configured by a communicable access point acquired by the acquisition unit when the connection fails, and the connection is not The second identifier of the communicable access point acquired by the acquisition unit at the time of the failure is not included in the second identifier of the access point constituting the wireless network in which the connection is successful in the connection history information, and the connection is not The first identifier of the wireless network configured by the communicable access point acquired by the acquiring unit when the acquisition unit fails is included in the first identifier of the wireless network configured by the access point capable of communicating with the terminal of the connection history information The cause of the connection failure is the access point that configures the wireless network specified in the input unit. Determining that power of bets is OFF
Terminal. The terminal according to claim 4, wherein the first identifier is an SSID. The terminal according to claim 5, wherein the second identifier is a BSSID. An input function to specify a wireless network to try to connect;
A communication function for setting connection setting information including a first identifier for identifying a wireless network designated by the input function and attempting the connection to the designated wireless network;
An acquisition function for acquiring a second identifier of an access point with which the terminal can communicate and a first identifier of a wireless network formed by the access point;
When the connection is successful, the first identifier of the wireless network that has succeeded in connection and the second identifier of the access point that constitutes the wireless network and the second identifier of the access point that can be communicated by the terminal itself and the access point are configured A storage function for storing connection history information including a first identifier of a wireless network to be
A determination function for determining a cause of the failure of the connection when the connection fails;
In the determination function, the first identifier of the connection setting information is not included in the first identifier of a wireless network configured by the communicable access point acquired by the acquisition function when the connection fails, and the connection is not The second identifier of the communicable access point acquired by the acquisition function at the time of the failure is not included in the second identifier of the access point constituting the wireless network in which the connection is successful in the connection history information, and the connection is not If the second identifier of the communicable access point acquired by the acquisition function at the time of the failure is included in the second identifier of the access point communicable with the terminal of the connection history information, the cause of the connection failure Determines that the power of the access point that constitutes the wireless network specified by the input function is OFF
Terminal control program. 8. The terminal control program according to claim 7, wherein the first identifier is an SSID. The terminal control program according to claim 8, wherein the second identifier is a BSSID.

Images