JP6056558B2 - Wireless communication device, wireless communication terminal, reconnection program, wireless communication method, and wireless communication system - Google Patents

Description

  The present invention relates to a wireless communication device, a wireless communication terminal, a reconnection program, a wireless communication method, and a wireless communication system.

  Wi-Fi Direct is known as a standard that can wirelessly connect wireless devices without relaying an access point. In Wi-Fi Direct, a wireless device that provides an access point function becomes a group owner and manages wireless connection. As a wireless device that provides an access point function, a printer, a scanner, a smartphone, and the like are assumed in addition to a PC (Personal Computer). To connect the slave unit to other wireless devices via Wi-Fi Direct, specify the SSID (Service Set Identifier) of the group owner, send a connection request to the group owner, and enter the passphrase set for the group owner. Send to group owner. When the connection is established, the group owner's SSID and passphrase are stored in the slave unit as profile information. If the connection between the group owner and the slave unit is unexpectedly disconnected due to deterioration of the radio wave environment, the slave unit automatically tries to reconnect to the master unit using the profile information stored in the slave unit. It is done.

JP 2011-193225 A

However, since the slave unit automatically searches for the group owner connected in the past using the stored profile information and automatically reconnects to the group owner, the following problem may occur. First, let's say that the user who wants to use the printer “P” through the smartphone “S” activates the access point function of the printer “P” as the group owner and connects the smartphone “S” to the printer “P” for the first time. Suppose. In this situation, it is assumed that the wireless device “X _n ” that has been connected to the printer “P” in the past exists in the wireless communication area with “P” as many as the maximum number of connectable devices for the printer “P”. In this case, before the user of the smartphone “S” searches for the SSID of the printer “P” and enters the passphrase, the reconnection between the wireless device “X _n ” and the printer “P” is automatically established. As a result, the upper limit number that can be connected is reached, and there is a problem that the smartphone “S” cannot be connected to the printer “P”.

This problem is solved by changing the SSID of the printer “P” every time the access point function is activated. However, if the SSID of the printer “P” is changed, the user of the wireless device “X _n ” that has been connected to the printer “P” in the past re-searches the printer “P” and re-enters the passphrase. Another problem arises.

  An object of the present invention is to provide a wireless communication system capable of more reliably wirelessly connecting a wireless communication terminal desired by a user to a wireless communication apparatus.

  (1) A wireless communication device for achieving the above object is a wireless communication device for controlling wireless communication with a wireless communication terminal, wherein wireless communication means for performing wireless communication with the wireless communication terminal, and a first character Storage means for storing an identifier including a string and a second character string and a passphrase in association with each other, and when the wireless communication means receives the passphrase corresponding to the identifier, via the wireless communication means, Connection control means for establishing a wireless connection with the wireless communication terminal that has transmitted the passphrase, and the connection control means changes the first character string of the identifier and stores it in the storage means Having the function of updating the updated identifier to the updated identifier including the changed first character string and the second character string, and when the identifier is updated, the pass phrase corresponding to the identifier is Associated with the update identifier instead of Besshi.

  According to the present invention, since the first character string that is a part of the identifier is updated when the identifier is updated in advance, the wireless communication apparatus passes the identifier in response to receiving the updated identifier. A wireless connection is established with a wireless communication device that transmits a phrase and requests connection. Therefore, even if the slave unit has been wirelessly connected to the wireless communication device in the past, the wireless communication terminal that does not attempt to reconnect to the wireless communication device with the updated identifier as the identifier of the same wireless communication device is reconnected. Not. That is, according to the present invention, the wireless communication terminal that is automatically reconnected to the base unit that has been connected in the past is limited to the one that transmits a passphrase and requests connection in response to receiving the updated identifier. A wireless communication system can be realized. As a result, the user can more reliably wirelessly connect the desired wireless communication terminal to the wireless communication device.

  (2) A wireless communication apparatus for achieving the above object provides a reconnection program for causing a computer to function as search means for searching for a wireless device corresponding to an identifier including the second character string as a parent device to be connected. You may further provide the program data transmission means which transmits the data for installation to the said subunit | mobile_unit connected by radio | wireless connection.

  When this configuration is adopted, an arbitrary wireless device functions as a wireless communication terminal that attempts to reconnect to the wireless communication device by assuming that the identifier in which the second character string is updated in the wireless communication device is the identifier of the same wireless communication device Can be made.

  (3) A wireless communication terminal for achieving the above object is a wireless communication terminal that wirelessly communicates with a wireless communication device that controls wireless communication, wherein wireless communication means that performs wireless communication with the wireless communication device; Storage means for storing an identifier including a first character string and a second character string and a pass phrase in association with each other; search means for searching for a wireless communication device corresponding to the identifier via the wireless communication means; and the search Communication control means for wirelessly connecting to the wireless communication device by transmitting the passphrase to the wireless communication device discovered in step, the communication control means is different from the identifier and the first character string, When a wireless communication device having an update identifier that shares the second character string is found in the search, a passphrase corresponding to the identifier is transmitted to the wireless communication device having the update identifier. To connect.

  According to the present invention, the identifier matching the predetermined second character string is assumed to be the identifier of the same wireless communication device, and re-connection with the wireless communication device is attempted, so that the identifier is a part of the identifier of the wireless communication device. Even when the variable character string is updated, it is possible to automatically reconnect to the wireless communication device.

  (4) A reconnection program for achieving the above object is a reconnection program for wirelessly communicating with a wireless communication device that controls wireless communication, wherein a wireless communication terminal computer having wireless communication means is connected to the wireless communication device. Means for storing an identifier including a first character string and a second character string in association with a passphrase used in wireless connection with a communication terminal, and a wireless corresponding to the identifier via the wireless communication means; Means for searching for a communication device; and by transmitting the passphrase to the wireless communication device found in the search, thereby causing the wireless communication device to function wirelessly, and the communication control means When a wireless communication device with an update identifier that is different from an identifier and the first character string and shares the second character string is found by the search, the identifier corresponds to the identifier. Send a pass phrase, to the wireless communication device and the wireless connection of the update identifier.

  The wireless device in which the reconnection program according to the present invention is installed in the computer tries to reconnect to the wireless communication device by assuming that the identifier matching the predetermined second character string is the identifier of the same wireless communication device. Therefore, even when the variable character string that is a part of the identifier of the wireless communication device is updated, it is possible to reconnect to the wireless communication device.

  Note that the function of each means described in the claims is realized by hardware resources whose function is specified by the configuration itself, hardware resources whose function is specified by a program, or a combination thereof. The functions of these means are not limited to those realized by hardware resources that are physically independent of each other. Furthermore, the present invention can be realized as a wireless communication system combining a wireless communication terminal and a wireless communication device, a wireless communication method, a wireless communication program, or a recording medium thereof. Of course, the recording medium for the computer program may be a magnetic recording medium, a magneto-optical recording medium, or any recording medium developed in the future.

The schematic diagram concerning embodiment of this invention. The block diagram concerning embodiment of this invention. The block diagram concerning embodiment of this invention. The sequence diagram concerning embodiment of this invention. The screen transition diagram concerning embodiment of this invention. The sequence diagram concerning embodiment of this invention. The screen transition diagram concerning embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected to the corresponding component in each figure, and the overlapping description is abbreviate | omitted.
1. Configuration of Radio Communication System FIG. 1 is a schematic diagram showing an outline of a radio communication system according to an embodiment of the present invention. The wireless communication system according to this embodiment includes a printer 1 as a wireless communication device and a smartphone 3 as a wireless communication terminal in which a reconnection program is installed. The printer 1 has a communication function compliant with Wi-Fi Direct, and operates as an access point to thereby operate a plurality of smartphones 2a, 2b, 2c, 2d, 3 having a communication function compliant with Wi-Fi. You can connect wirelessly. However, there is an upper limit to the number of wireless devices to which the printer 1 can be connected simultaneously by Wi-Fi Direct. In the present embodiment, there are four wireless devices.

  FIG. 2 is a block diagram illustrating the configuration of the printer 1. As shown in the figure, the printer 1 of this embodiment includes a controller 11 that functions as a connection control unit, a wireless communication unit 12 that functions as a wireless communication unit, a printing unit 13, and a GUI (Graphical User Interface) unit 14. ing. The controller 11 includes a CPU, RAM, I / O, ASIC, etc. (not shown) in addition to the non-volatile memory 111 as a storage means, and stores various programs such as a wireless communication program and a printing program recorded in the non-volatile memory 111. A computer that realizes various functions by being executed by a CPU. The wireless communication program of the printer 1 includes a program for performing wireless communication compliant with Wi-Fi Direct. When the print program acquires data to be printed, the print program includes a program for controlling the print unit 13 and executing printing based on the acquired data. The printing unit 13 includes an actuator, a sensor, a drive circuit, and mechanical parts for executing printing on a printing medium such as photographic paper, plain paper, and an OHP sheet by a known printing method such as an inkjet method or an electrophotographic method. The wireless communication unit 12 of the printer 1 includes a wireless LAN interface for communicating with other wireless communication devices in accordance with Wi-Fi Direct. The wireless communication unit 12 converts the received wireless signal according to the protocol and sends it to the internal bus. The signal received from the internal bus is converted in accordance with the protocol and transmitted as a radio signal. In addition to the touch panel display 141, the GUI unit 14 includes an LED (not shown), a print button, and the like. The touch panel display 141 guides various information to the user and inputs various instructions of the user.

FIG. 3 is a block diagram showing the configuration of the smartphone 3. The smartphone 3 includes a controller 31 that functions as a passphrase acquisition unit, a search unit, and a communication control unit, a wireless communication unit 32 that functions as a wireless communication unit, and a GUI unit 33. The controller 31 is a computer provided with a RAM, a CPU, and an I / O in addition to a nonvolatile memory 311 as a storage unit. The nonvolatile memory 311 stores a wireless communication program for realizing communication in accordance with various wireless communication protocols and a program for realizing various other functions. The wireless communication unit 32 includes a wireless LAN interface for realizing wireless LAN communication such as Wi-Fi, converts a received wireless signal according to a protocol, sends the signal to an internal bus, and receives a signal taken from the internal bus. It is converted according to the protocol and transmitted as a radio signal. The GUI unit 33 includes a touch panel display 331. The GUI unit 33 can display and guide various information and can input various instructions from the user.
2. Wireless communication method

  In the wireless communication method according to the present embodiment, a reconnection program for recognizing the SSID (identifier) of the printer 1 that is updated at a predetermined time as the SSID of the same printer 1 is installed in the wireless communication terminal. Wireless communication devices that are automatically reconnected to the connected printer 1 are limited to devices that have the reconnection program installed.

  Hereinafter, it will be described that the wireless communication system according to the present embodiment is configured by installing the reconnection program in the smartphone 3 as a part of the printer control program. First, a process in which the smartphone 3 in which the printer control program is not installed is wirelessly connected to the printer 1 for the first time will be described with reference to FIG.

  When the user instructs activation of the Wi-Fi Direct access point function, the printer 1 activates the access point function (S101). At this time, the printer 1 accepts an activation instruction as follows, for example. When “wireless LAN setting” is selected on the home screen shown in FIG. 5A displayed on the touch panel display 141, the wireless LAN setting screen shown in FIG. 5B is displayed on the touch panel display 141. Subsequently, when “access point function setting” is selected on the wireless LAN setting screen, the access point function setting screen shown in FIG. 5C is displayed on the touch panel display 141. When “setting start” is selected on the access point function setting screen, the controller 11 activates the access point function.

When the access point function is activated in the printer 1, the controller 11 updates the SSID stored in the nonvolatile memory 111, and displays the updated SSID and passphrase on the touch panel display 141 as shown in FIG. 5D, for example (S102). ).
Here, the SSID of the printer 1 is managed by the controller 11. The SSID of the printer 1 is composed of a fixed character string (second character string) determined in advance and a variable character string (first character string) changed to another character string at a predetermined timing. Stored in the memory 111. The combination of the fixed character string and the variable character string may be determined in any way. In this embodiment, the fixed character string “DIRECT-” and “EPSON” are combined with the variable character string “**”. Let “DIRECT-** EPSON” be the SSID of printer 1. Here, “*” in the variable character string means a wild card, and in the example shown in FIG. 5D, the variable character string is set to “yj”. The controller 11 updates the SSID by randomly generating a new variable character string at a predetermined timing. However, the SSID generation method is not limited to this, and a variable character string may be generated according to a predetermined rule, or may be appropriately selected from a plurality of predetermined variable character strings. SSID may be generated. In addition, although the timing which updates a variable character string can be defined arbitrarily, in this embodiment, a variable character string shall be updated at the timing when an access point function is started or restarted.

  When the access point function is activated or restarted, the variable character string is changed and the SSID is updated, so that the wireless connection between the smartphone 2a, 2b, 2c, 2d and the printer 1 established so far is disconnected, The updated SSID is broadcast as a beacon from the printer 1. When the wireless connection with the printer 1 is disconnected, the smartphones 2a, 2b, 2c, and 2d acquire the SSID broadcast from the access point, and the smartphones 2a, 2b, 2c, and 2d store the access point that stores the SSID. Performs automatic search and attempts to automatically reconnect with the searched access point. Here, it is assumed that the variable character string before update is “uq” and the variable character string after update is “yj”, and the printer control program is installed in the smartphones 2a, 2b, 2c, and 2d shown in FIG. Assume that it is not. At this time, the smartphones 2 a, 2 b, 2 c, and 2 d acquire “DIRECT-yjEPSON” that is the SSID after the update of the printer 1, but the smartphones 2 a, 2 b, 2 c, and 2 d are updated after the printer 1 is updated. Since SSID “DIRECT-yjEPSON” is not stored as an access point connected in the past, reconnection with the printer 1 is not attempted. Therefore, the printer 1 with the updated SSID and the smartphones 2a, 2b, 2c, and 2d are not automatically reconnected.

  On the other hand, also in the smart phone 3, the search of the access point by the controller 31 is performed by a user's instruction | indication or the smart phone 3 intruding into the area | region which can be wirelessly connected with the printer 1 (S104). When the smartphone 3 is in an area where wireless connection with the printer 1 is possible, the smartphone 3 also receives the updated SSID broadcast as a beacon from the printer 1.

  When the controller 31 of the smartphone 3 obtains the updated “DIRECT-yjEPSON” that is an SSID that is not stored in the nonvolatile memory 311, it selects “DIRECT-yjEPSON” as the SSID of the connectable access point on the touch panel display 331. Display is possible (S105).

  When the user selects “DIRECT-yjEPSON” displayed on the touch panel display 331, the controller 31 receives an input of a pass phrase for receiving connection authentication of the printer 1 (S106).

  The controller 31 that has acquired the passphrase requests the printer 1 for wireless connection using the selected SSID and the input passphrase, and establishes the wireless connection with the printer 1 (S107). When the wireless connection is established, when the SSID of the wirelessly connected printer 1 is not stored in the nonvolatile memory 311, the controller 31 of the smartphone 3 stores the SSID and the passphrase in association with each other in the nonvolatile memory 311. Note that the processes from S104 to S107 described so far are well-known processes generally performed in a wireless communication device compliant with Wi-Fi.

  When the wireless communication unit 12 of the printer 1 receives the connection request from the smartphone 3, the controller 11 of the printer 1 wirelessly connects the printer 1 to the smartphone 3 using the passphrase acquired from the smartphone 3 (S108). Specifically, the controller 11 collates the passphrase acquired from the smartphone 3 with the passphrase of the printer 1 stored in the nonvolatile memory 111, and if these match, the controller 1 is connected to the smartphone 3. Connect wirelessly. If these do not match, the printer 1 is not wirelessly connected to the smartphone 3.

  Subsequently, the controller 11 of the printer 1 determines whether or not the SSID of the wireless communication terminal wirelessly connected this time is stored in the nonvolatile memory 111 as the SSID of the wireless communication terminal connected in the past. If not stored, the controller 11 transmits the printer control program stored in the nonvolatile memory 111 to the wireless communication terminal as follows (S109). The controller 11 transmits a program request inquiry for inquiring whether or not to install the printer control program to the wireless communication terminal to the wireless communication terminal. As a result, when a program request is received from the wireless communication terminal, the controller 11 transmits program data for installing the printer control program in the wireless communication terminal to the wireless communication terminal.

  In the wireless communication terminal, the printer control program is installed manually or automatically using the received program data (S110). The printer control program for using the printer 1 via wireless communication includes a reconnection program.

  Next, an example of a process in which the smartphone 3 automatically reconnects to the printer 1 after the wireless connection between the smartphone 3 in which the printer control program is installed and the printer 1 is disconnected will be described with reference to FIG. It is assumed that the SSID of the printer 1 is updated from SSID “DIRECT-yjEPSON” to “DIRECT-tkEPSON” by restarting the access point function. Hereinafter, a description will be given assuming a situation in which the user of the smartphone 3 starts the printer control program and causes the printer 1 to execute printing to reconnect the smartphone 3 and the printer 1.

  When the user of the smartphone 3 starts the printer control program (S201), an operation menu screen shown in FIG. 7A is displayed. When “Photo” is selected on the operation menu screen, an image selection screen shown in FIG. 7B is displayed. When an image is selected on the image selection screen, the selected image is enlarged and displayed as shown in FIG. 7C.

  When “print” is selected here, the controller 31 of the smartphone 3 searches for an access point corresponding to the SSID including the fixed character string of the SSID stored in the nonvolatile memory 311 (S202). Specifically, the controller 31 searches for an access point corresponding to the SSID “DIRECT-** EPSON” using “**” as a wild card. As a result, the controller 31 acquires “DIRECT-tkEPSON” wirelessly transmitted as a beacon by the wireless communication unit 12 of the printer 1 via the wireless communication unit 32. As a search method at this time, the smartphone 3 may transmit a probe request and receive a probe response in response to the probe request from the access point.

  When acquiring the SSID including the SSID fixed character string stored in the nonvolatile memory 311, the controller 31 acquires the passphrase stored in the nonvolatile memory 311 in association with the fixed character string (S203). . That is, the controller 31 that acquired “DIRECT-tkEPSON” as the search result acquires the passphrase “12345678” of the printer 1 stored in the nonvolatile memory 311 in association with the SSID “DIRECT-yjEPSON”.

  Subsequently, the controller 31 requests the printer 1 for wireless connection using the acquired SSID “DIRECT-tkEPSON” and the passphrase “12345678”, and establishes wireless connection with the printer 1 (S107). The controller 31 stores the SSID “DIRECT-tkEPSON” in association with the passphrase “12345678” in the nonvolatile memory 311 instead of the SSID “DIRECT-yjEPSON”.

  When the wireless communication unit 12 of the printer 1 receives a connection request from the smartphone 3, the controller 11 of the printer 1 wirelessly connects to the smartphone 3 using the updated SSID “DIRECT-tkEPSON” and the passphrase “12345678” ( S208). Specifically, the controller 11 collates the passphrase acquired from the smartphone 3 with the passphrase stored in the nonvolatile memory 111 as the passphrase of the printer 1. 1 is connected wirelessly. If these do not match, the printer 1 is not wirelessly connected to the smartphone 3.

  Thereafter, image data is transmitted from the smartphone 3 to the printer 1, and the printer 1 executes printing based on the acquired image data.

  As described above, in the wireless communication system according to the present embodiment, the SSID of the printer 1 is composed of a variable character string and a fixed character string, and is updated when the variable character string is determined in advance. For this reason, the wireless communication terminal automatically reconnected to the printer 1 automatically searches for the SSID of the printer 1 after the variable character string is updated as the SSID of the access point connected in the past and tries to reconnect. Limited to wireless communication terminals.

  In addition, data for installing a printer control program including a reconnection program for automatically reconnecting to the printer 1 is transmitted to a wireless communication terminal that is wirelessly connected to the printer 1 for the first time. Assuming that the identifier updated in the device is the identifier of the same wireless communication device, an arbitrary wireless device can function as a slave unit attempting to reconnect to the wireless communication device.

  Then, the wireless communication terminal in which the printer control program is installed tries to reconnect with the printer 1 assuming that the identifier matching the predetermined fixed character string is the identifier of the access point that has been connected in the past. Even when the variable character string that is a part of the identifier is updated, the printer 1 can be automatically reconnected. Thereby, for example, when the printer 1 enables the access point function, the wireless communication terminal connected in the past tries to automatically connect to the printer 1 according to the past profile information (SSID and passphrase). Before the terminal to be used is wirelessly connected to the printer 1, the upper limit number of connections is reached by a wireless communication terminal connected in the past, and the terminal to be used cannot be wirelessly connected. Therefore, the user can reliably wirelessly connect a desired smartphone to the printer 1 by using the smartphone in which the printer control program is installed.

3. Other Embodiments The technical scope of the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the scope of the present invention.
For example, the wireless communication protocol does not have to be Wi-Fi Direct, one device operates like an access point, and the wireless communication terminal uses the wireless communication device identifier and passphrase to establish a connection with the wireless communication device. Any protocol can be used.
Further, the reconnection program may be installed in the wireless communication terminal at any stage. Specifically, the reconnection target may be limited to the wireless communication terminals installed at the time of shipment from the factory, or the reconnection program may be downloadable from the Internet. Of course, the reconnection program does not need to be integrated with the printer control program, and provides a function of searching for a wireless device corresponding to an identifier including a variable character string and a predetermined fixed character string as a parent device to be connected. It can also be provided in the form of a patch.

  The variable character string may be updated at regular time intervals, may be updated when the number of wireless communication terminals communicating with the wireless communication device is changed, or when a request is received from the user. It may be updated. The wireless communication apparatus may periodically broadcast its own identifier as a beacon, or may transmit it to a specific wireless communication device in response to a request.

  The wireless communication terminal may store the entire identifier of the wireless communication device or may store only a fixed character string of the identifier of the wireless communication device. Further, the means for storing the identifier of the wireless communication device is not limited to the nonvolatile memory, and the identifier of the wireless communication device may be stored in the volatile memory. However, when the identifier of the wireless communication device is stored in the volatile memory and not stored in the nonvolatile memory, the period during which the wireless communication device can be automatically reconnected is limited to the period in which the identifier can be stored in the volatile memory. Is done. Of course, any medium such as a flash memory or a hard disk may be used as the volatile memory.

  Needless to say, the present invention can be applied to various wireless communication apparatuses having a wireless communication function in addition to the printer. For example, the present invention can be applied to a PC (Personal Computer) and a wireless router.

DESCRIPTION OF SYMBOLS 1 ... Printer, 2a * 2b * 2c * 2d ... Smartphone, 3 ... Smartphone, 11 ... Controller, 12 ... Wireless communication unit, 13 ... Printing unit, 14 ... GUI unit, 31 ... Controller, 32 ... Wireless communication unit, 33 ... GUI unit, 111: nonvolatile memory, 141: touch panel display, 311: nonvolatile memory, 331: touch panel display

Claims (7)

A wireless communication device that controls wireless communication with a wireless communication terminal,
Wireless communication means for performing wireless communication with the wireless communication terminal;
Storage means for storing an identifier including a first character string and a second character string in association with a pass phrase;
Connection control means for establishing a wireless connection with the wireless communication terminal that has transmitted the passphrase via the wireless communication means when the wireless communication means receives the passphrase corresponding to the identifier; Prepared,
The connection control means changes the first character string of the identifiers, and updates the identifier stored in the storage means to an update identifier including the changed first character string and the second character string. A wireless communication device having a function and associating a passphrase corresponding to the identifier with the update identifier instead of the identifier when the identifier is updated. Data for installing a reconnection program for causing a computer to function as search means for searching for a wireless device corresponding to an identifier including the second character string as a parent device to be connected to the wireless communication terminal connected wirelessly Further comprising program data transmitting means for transmitting,
The wireless communication apparatus according to claim 1. A wireless communication terminal that wirelessly communicates with a wireless communication device that controls wireless communication,
Wireless communication means for performing wireless communication with the wireless communication device;
Storage means for storing an identifier including a first character string and a second character string in association with a pass phrase;
Search means for searching for a wireless communication device corresponding to the identifier via the wireless communication means;
Communication control means for wirelessly connecting to the wireless communication device by transmitting the passphrase to the wireless communication device discovered by the search,
The communication control means, when the identifier and the first character string are different, and a wireless communication device having an update identifier that shares the second character string is found in the search, a passphrase corresponding to the identifier A wireless communication terminal that transmits and wirelessly connects to the wireless communication device having the update identifier. A reconnection program for wireless communication with a wireless communication device that controls wireless communication,
A wireless communication terminal computer having wireless communication means,
Means for associating and storing an identifier including a first character string and a second character string and a passphrase used in wireless connection with the wireless communication terminal;
Means for searching for a wireless communication device corresponding to the identifier via the wireless communication means;
By transmitting the passphrase to the wireless communication device discovered in the search, to function as a communication control means for wireless connection with the wireless communication device,
The communication control means, when the identifier and the first character string are different, and a wireless communication device having an update identifier that shares the second character string is found in the search, a passphrase corresponding to the identifier A reconnection program that transmits and wirelessly connects to the wireless communication device having the update identifier. Storing an identifier including a first character string and a second character string in association with a passphrase;
The passphrase corresponding to the identifier when the radio reception, establishes a wireless connection with the radio communications terminal transmitting the passphrase,
Changing the first character string of the identifiers and updating the stored identifier to an updated identifier including the changed first character string and the second character string;
When the identifier is updated, a passphrase corresponding to the identifier is associated with the update identifier instead of the identifier.
A wireless communication method for a wireless communication apparatus. Storing an identifier including a first character string and a second character string in association with a passphrase;
Search for the wireless communication device corresponding to the identifier,
By wirelessly connecting to the wireless communication device by transmitting the passphrase to the wireless communication device discovered by the search,
When a wireless communication device having an update identifier that is different from the identifier and the first character string and has the second character string in common is found in the search, a passphrase corresponding to the identifier is transmitted, and the update is performed. Wireless connection with the identifier wireless communication device,
A wireless communication method for a wireless communication terminal. A wireless communication system in which the wireless communication device and a wireless communication terminal are wirelessly connected using a wireless communication device identifier and a passphrase,
The wireless communication device
Wireless communication means for performing wireless communication with the wireless communication terminal;
First storage means for storing an identifier including a first character string and a second character string and a passphrase in association with each other;
Connection control means for establishing a wireless connection with the wireless communication terminal that has transmitted the passphrase via the wireless communication means when the wireless communication means receives the passphrase corresponding to the identifier; Prepared,
The connection control means changes the first character string among the identifiers, and changes the identifier stored in the first storage means to an update identifier including the changed first character string and the second character string. Having a function of updating, when the identifier is updated, a passphrase corresponding to the identifier is associated with the update identifier instead of the identifier,
The wireless communication terminal is
Wireless communication means for performing wireless communication with the wireless communication device;
Second storage means for storing the identifier including the first character string and the second character string in association with the pass phrase;
Search means for searching for a wireless communication device corresponding to the identifier via the wireless communication means;
Communication control means for wirelessly connecting to the wireless communication device by transmitting the passphrase to the wireless communication device discovered by the search,
The communication control means, when the identifier and the first character string are different, and a wireless communication device having an update identifier that shares the second character string is found in the search, a passphrase corresponding to the identifier Transmitting and wirelessly connecting to the wireless communication device of the update identifier,
Wireless communication system.

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