JP2010062904A - Wireless communication terminal, wireless communication connection method, and wireless communication connection program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wireless communication terminal, a wireless communication connection method and a wireless communication connection program, which can easily set up wireless connection so that a user is not conscious particularly of a communication method to which the wireless communication terminal corresponds. <P>SOLUTION: A digital camera 20 for establishing connection by wireless communications between itself and a personal computer 40 which is an external communication terminal acquires information on the connection including at least the wireless connection situation of the personal computer 40 and its available wireless communication method by a wireless communication section 36. Further, based on the information on the connection acquired by the wireless communication section 36, the wireless communication connection with the personal computer 40 is established by a CPU29. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a wireless communication terminal, a wireless communication connection method, and a wireless communication connection program in a wireless communication device, and in particular, wireless connection in an environment including wireless communication devices capable of communication by a plurality of communication methods. It is related with the method of setting.

  Today, devices capable of wireless communication are used. However, in order to perform wireless communication with security, it is necessary to set parameters such as network identifiers and encryption keys, which is not easy for users to set. It was a thing. Therefore, as a method for easily setting a wireless connection, a method for performing connection setting in consideration of security by providing buttons on wireless communication devices and pressing buttons between devices performing wireless communication is disclosed, for example, in Patent Document 1 below. Has been proposed.

In the infrastructure mode, WiFi Protected Setup is released as a standard for easily setting up a connection for wireless communication.
JP 2007-013348 A

  However, there are devices that can use direct communication (ad hoc mode) between wireless communication devices not via an access point, as well as devices that communicate using a communication method (infrastructure mode) via an access point. . Here, in a mixed environment of wireless communication devices that support only the infrastructure mode and wireless communication devices that support both the infrastructure mode and the ad hoc mode, the user can use the communication that can be used by each wireless communication device. It is necessary to grasp the method and set the wireless connection according to each communication method. This has a problem that it may be unusable for the user.

  Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wireless communication terminal that allows a user to easily set a wireless connection without specially being aware of a communication method corresponding to a wireless communication device. And a wireless communication connection method and a wireless communication connection program.

  That is, according to the first aspect of the present invention, in a wireless communication terminal that establishes a wireless communication connection with an external communication terminal, at least the wireless connection status of the external communication terminal and the availability of the external communication terminal A connection information acquisition unit that acquires connection information including a wireless communication method, and a connection establishment that establishes a wireless communication connection with the external communication terminal based on the connection information acquired by the connection information acquisition unit And means.

  According to a second aspect of the present invention, in the first aspect of the present invention, the connection information includes a first wireless communication system in which the external communication terminal performs direct wireless communication connection with another communication terminal. Use of the second wireless communication method for establishing wireless communication connection with another communication terminal via an access point, and wireless communication between the external communication terminal and the other communication terminal. Including presence / absence of establishment of communication connection, and use method information for specifying a wireless communication method in use when a wireless communication connection is established between the external communication terminal and another communication terminal. And

  The invention according to claim 3 is the invention according to claim 2, wherein the first wireless communication system is an ad hoc mode, and the second wireless communication system is an infrastructure mode. To do.

  The invention according to claim 4 is the invention according to claim 2, wherein the connection establishment means uses the first wireless communication system when establishing a wireless communication connection with the external communication terminal. Whether to use the second wireless communication system or not is determined based on the connection information acquired by the connection information acquisition means.

  The invention described in claim 5 further comprises notification means for notifying a user of a wireless communication system to be used when establishing a wireless communication connection by the connection establishing means in the invention described in claim 4. It is characterized by.

  The invention described in claim 6 is the invention described in claim 5, wherein the notification means is a display means for displaying a wireless communication system to be used and notifying the user.

  According to a seventh aspect of the present invention, in the invention according to the fourth aspect, the connection establishing means is provided when both the external communication terminal and the wireless communication terminal can use the first communication method. Establishes a wireless communication connection with the external terminal using the first communication method.

  The invention according to claim 8 is the invention according to claim 4, wherein the connection establishing means uses at least one of the external communication terminal and the wireless communication terminal using the first wireless communication system. If not possible, a wireless communication connection with the external terminal is established using the second wireless communication method.

  According to a ninth aspect of the present invention, there is provided a wireless communication connection method for establishing a connection by wireless communication between a wireless communication terminal and an external communication terminal, at least a wireless connection status of the external communication terminal, and the external communication Transmitting connection information including a wireless communication method available to the terminal to the wireless communication terminal, and establishing a wireless communication connection between the communication terminal and the external communication terminal based on the connection information. Features.

  According to a tenth aspect of the present invention, at least a wireless connection status of the external communication terminal and a wireless communication method that can be used by the external communication terminal are connected to a computer having connection means for wireless communication connection with the external communication terminal. And a function for acquiring connection information including the function and a function for establishing a wireless communication connection between the external communication terminal and the computer based on the acquired connection information.

  According to the present invention, it is possible to provide a wireless communication terminal, a wireless communication connection method, and a wireless communication connection program that allow a user to easily set a wireless connection without specially being aware of a communication method supported by the wireless communication device. be able to.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating a wireless communication system to which a wireless connection setting method is applied according to an embodiment of the present invention.

  The wireless communication system 10 that performs the setting of the wireless connection includes a digital camera 20 that is a wireless communication device, a personal computer (PC) 40, and an access point 60 that is necessary for communication in the infrastructure mode. Configured.

  In FIG. 1, the digital camera 20 and the personal computer 40 are connected in the infrastructure mode via the access point 60 or are connected to the digital camera 20 in accordance with the connection status and communication method capable of communication. Whether or not to perform connection setting in the ad hoc mode by direct communication with the personal computer 40 is determined and executed.

  FIG. 2 is a block diagram showing the configuration of the digital camera 20 of FIG.

  The digital camera 20 includes a lens 21, an imaging unit 22, an imaging processing unit 23, a RAM 24, a memory interface (I / F) 25, a memory card 26, a central processing unit (CPU) 29, and a ROM 30. , An operation input unit 31, a display processing unit 32, a display unit 33, an image processing unit 35, and a wireless communication unit 36, which are connected via a bus 38.

  The lens 21 is for entering a photographic light beam from a subject (not shown). In the imaging unit 22, the subject image formed by the lens 21 is converted into an electrical signal. The imaging processing unit 23 performs analog-digital conversion (A / D conversion) of the electrical signal and outputs image data.

  The RAM 24 is a random access memory that is used for work as necessary when the image processing unit 35 and the CPU 29 perform various processes. The memory I / F 25 is an interface that connects the memory card 26 to the bus 38, and enables various data to be read from and written to the memory card 26 under the control of the CPU 29. The memory card 26 is an external recording medium that can be attached to and detached from the digital camera 20.

  The CPU 29 is connected to each circuit and the like of the digital camera 20 via the bus 38 and controls the entire digital camera 20 by a control program stored in the ROM 30. Further, a processing program corresponding to the input from the operation input unit 31 is taken out from the ROM 30 and execution control of each function of the digital camera 20 is performed. The input from the operation input unit 31 includes an input of a button (not shown) operation for instructing start of wireless connection setting together with image shooting, reproduction operation and function selection setting.

  The ROM 30 is a read-only memory that stores a control program executed by the CPU 29 and various data used as necessary during the execution.

  The display processing unit 32 is for performing digital-analog conversion (D / A conversion) on the image data sent via the bus 38 and supplying it to the display unit 33. The display unit 33 displays the image data input to the display processing unit 32.

  The image processing unit 35 performs image processing on the image data output from the imaging processing unit 23. When image data is recorded on the memory card 26, data compression processing is performed on the image data as necessary. Furthermore, when reproducing and displaying an image data file recorded on the memory card 26, data expansion processing is performed on the image data file read from the memory card 26 as necessary.

  The wireless communication unit 36 is for performing data communication processing with the personal computer 40 and the access point 60. Further, the image data temporarily recorded in the RAM 24 or the image data file recorded in the memory card 26 is transmitted to the personal computer 40.

  FIG. 3 is a block diagram showing the configuration of the personal computer 40 of FIG.

  In FIG. 3, the personal computer 40 includes a hard disk 41, a display unit 42, a wireless communication unit 43, a CPU 44, a ROM 46, a RAM 47, and an input unit 48, each of which is connected via a bus 50. Connected.

  The hard disk 41 stores various control programs executed by the CPU 44 and various data used as necessary during the execution. In addition, image data transferred from the digital camera is stored. In response to an instruction from the CPU 44, the display unit 42 displays a button for instructing start of wireless connection setting, or displays a state at the time of wireless connection setting. The display unit 42 displays an image transmitted from the digital camera 20.

  The wireless communication unit 43 performs data communication processing with the digital camera 20 and the access point 60 under the control of the CPU 44. The CPU 44 is connected to each circuit in the personal computer 40 via the bus 50 and controls the personal computer 40 as a whole by the program stored in the program area of the hard disk 41.

  The ROM 46 is a read-only memory in which control programs executed by the CPU 44 and various data necessary for the execution are stored. The RAM 47 is a random access memory that is used for work as necessary when the CPU 44 performs various processes. Furthermore, the input unit 48 acquires an instruction from the user via a mouse or a keyboard. This includes an operation input for instructing start of wireless connection setting as an instruction from the user.

  FIG. 4 is a block diagram showing the configuration of the access point 60 of FIG.

  In FIG. 4, the access point 60 includes a CPU 61, a display unit 62, a wireless communication unit 63, a ROM 64, and a RAM 65, which are connected via a bus 66.

  The CPU 61 is connected to each circuit of the access point 60 via the bus 66 and performs control according to a program stored in the ROM 64. The display unit 62 displays the wireless LAN connection status and communication status by lighting or blinking the lamp. The wireless communication unit 63 performs data communication processing with the digital camera 20 and the personal computer 40 under the control of the CPU 61.

  The ROM 64 is a read-only memory in which control programs executed by the CPU 61 and various data necessary for the execution are stored. The RAM 65 is a random access memory used for work as necessary when the CPU 61 performs various processes.

  Next, processing operations for setting a wireless connection between the digital camera 20 and the personal computer 40 will be described with reference to the flowcharts of FIGS. In this case, the operation on the personal computer 40 side will be mainly described. For example, among the digital camera 20 and the personal computer 40, the start button is operated more quickly, or the higher one is between the devices. The main operation may be performed.

  5, (a) is a flowchart for explaining the operation of the digital camera 20, (b) is a flowchart for explaining the operation of the personal computer 40, and (c) is an operation of the access point 60. It is a flowchart for demonstrating.

  First, in steps S1a and S1b, in the digital camera 20 and the personal computer 40, connection setting is started by the user pressing a button (not shown) or selecting a button displayed on the display units 33 and 42. Instructions are accepted.

  When the personal computer 40 receives this connection setting start instruction, in the subsequent step S2b, the current wireless connection status (connected in infrastructure mode, connected in ad hoc mode, or connected to surrounding wireless communication devices, or Non-connection) and transmission of information related to communication methods (infrastructure mode, ad hoc mode) that can be communicated are required. On the other hand, in the digital camera 20, after receiving the connection setting start instruction in step S1a, in step S2a, a request for information regarding a communication method capable of communicating with the current wireless connection status is received from the personal computer 40.

  Then, in the subsequent step S3a, information regarding the current wireless connection status and a communication method capable of communication is transmitted to the personal computer 40. FIG. 6 is a diagram showing an example of transmission data when the digital camera 20 is currently in a disconnected state and can communicate in the infrastructure mode and the ad hoc mode.

  In step S3b, the personal computer 40 receives a response from the digital camera 20. Then, in the subsequent step S4b, based on the received information and the communication method capable of communicating with the current wireless connection status of the personal computer 40 itself, a communication method determination process for performing connection setting is executed. . The detailed processing operation of this subroutine “communication method determination” will be described later.

  In subsequent step S5b, in the personal computer 40, the communication method for performing the connection setting selected in the determination process in step S4b is transmitted to the digital camera 20. Thereby, in step S4a, the digital camera 20 receives information about the communication method for performing connection setting from the personal computer 40. Then, in steps S5a and S6b, according to the communication method selected by the personal computer 40, the subroutine “setting of wireless connection” is executed. At this time, also in the access point 60, the subroutine “setting of wireless connection” is executed in step S1c.

  Next, the detailed operation of the subroutine “communication method determination” in step S4b of the flowchart of FIG. 5 will be described with reference to the flowchart of FIG.

  First, when this subroutine is entered, first, in steps S11 and S12, it is determined whether the personal computer 40 is connected, that is, whether the personal computer 40 is connected in the infrastructure mode, connected in the ad hoc mode, or not connected. Is done.

  If the personal computer 40 is connected to the access point 60 in the infrastructure mode, the process proceeds from step S11 to step S13 to determine whether the personal computer 40 supports communication in the ad hoc mode. Is done. As a result, if the communication in the ad hoc mode is supported, the process proceeds to step S14, and if not, the process proceeds to step S15. In step S15, the connection setting in the infrastructure mode is selected.

  In step S14, it is determined whether or not the digital camera 20, which is a connection destination device, supports communication in the ad hoc mode. As a result, if the digital camera 20 supports communication in the ad hoc mode, the process proceeds to step S16, and the connection setting in the ad hoc mode is selected. On the other hand, if the communication in the ad hoc mode is not supported in step S14, the process proceeds to step S17, and the connection setting in the infrastructure mode is selected.

  Then, after the processing operations of steps S15, S16, and S17, the process exits from this subroutine and proceeds to step S5b in the flowchart of FIG.

  Next, when the personal computer 40 is connected in the ad hoc mode in steps S11 and S12, the process proceeds to step S18. In step S18, it is determined whether or not the digital camera 20 that is the connection destination device supports communication in the ad hoc mode. Here, when the digital camera 20 supports communication in the ad hoc mode, the process proceeds to step S20, and the connection setting in the ad hoc mode is selected.

  On the other hand, if the communication in the ad hoc mode is not supported in step S18, the process proceeds to step S19 to determine whether or not the digital camera 20 is currently connected to the access point 60 in the infrastructure mode. The As a result, when the digital camera 20 is currently connected to the access point 60 in the infrastructure mode, the process proceeds to step S21, and the connection setting in the infrastructure mode is selected. If the connection is not established in the infrastructure mode in step S19, the process proceeds to step S22, where it is determined that connection setting is not possible, and processing to that effect is performed.

  Then, after the processing operations of steps S20, S21, and S22, the process exits this subroutine and proceeds to step S5b in the flowchart of FIG.

  Next, if the personal computer 40 is not connected in steps S11 and S12, the process proceeds to step S23. In step S23, it is determined whether or not the personal computer 40 supports communication in the ad hoc mode. Here, if the personal computer 40 supports communication in the ad hoc mode, the process proceeds to step S <b> 24 to determine whether or not the digital camera 20 supports communication in the ad hoc mode.

  If the digital camera 20 supports communication in the ad hoc mode in step S24, the process proceeds to step S26, and the connection setting in the ad hoc mode is selected. On the other hand, if the personal computer 40 does not support communication in the ad hoc mode in step S23 and if the digital camera 20 does not support communication in the ad hoc mode in step S24, the process proceeds to step S25.

  In step S25, it is determined whether or not the digital camera 20 that is the connection destination device is currently connected to the access point 60 in the infrastructure mode. As a result, if the digital camera 20 is currently connected to the access point 60 in the infrastructure mode, the process proceeds to step S27, and the connection setting in the infrastructure mode is selected. If the connection is not established in the infrastructure mode in step S25, the process proceeds to step S28, where it is determined that connection setting is not possible, and processing to that effect is performed.

  In the process of determining that connection setting is not possible in steps S22 and S28, for example, a message indicating that connection setting cannot be performed is displayed on the display unit 33 of the digital camera 20 or the display unit 42 of the personal computer 40. The user is notified.

  Next, the processing operation of the subroutine “setting of wireless connection” in step S5a of the flowchart of FIG. 5A, step S6b of the flowchart of FIG. 5B and step S1c of the flowchart of FIG. This will be described with reference to the flowchart of FIG.

  Here, the case of the infrastructure mode with reference to FIG. 8 and the case of the ad hoc mode with reference to FIG. 9 will be described separately according to the communication method selected in steps S5a, S6b and S1c.

  First, referring to the flowcharts of FIGS. 8A, 8B, and 8C, subroutines in the digital camera 20, the personal computer 40, and the access point 60 when the infrastructure mode is selected as the communication method. The processing operation of “wireless connection setting” will be described.

  In the determination of the communication method in step S4b of the flowchart of FIG. 5, when the connection setting in the infrastructure mode is selected (in the case of steps S15, S17, S21, and S27 in the flowchart of FIG. 7), FIG. The subroutines “wireless connection setting a”, “wireless connection setting b”, and “wireless connection setting c” in steps S5a, S6b, and S1c of the flowcharts a), (b), and (c) are respectively executed. Is done.

  When entering the subroutines of FIGS. 8A, 8B, and 8C, first, in step S31b, it is determined whether or not the current mode of the personal computer 40 is the infrastructure mode. If the current mode is not the infrastructure mode, the process proceeds to step S32b, and the personal computer 40 and the access point 60 are connected in the infrastructure mode. If the current mode is the infrastructure mode, step S32b is skipped.

  Next, in step S33b, the personal computer 40 requests the access point 60 to set connection with the digital camera 20 in the infrastructure mode. Then, in step S31c, the access point 60 receives a connection setting request from the personal computer 40. Thereby, the start of connection setting is notified to the digital camera 20 in step S32c.

  In step S <b> 31 a, the digital camera 20 receives a connection setting start notification from the access point 60. Then, in the subsequent step S32a, the current connection in the digital camera 20 is disconnected.

  Next, in steps S33a and S33c, the digital camera 20 and the access point 60 perform connection setting in the infrastructure mode according to the connection setting protocol. Thereafter, these subroutines are exited.

  In the case of steps S21 and S27 in the flowchart of FIG. 7, since the digital camera 20 is connected in the infrastructure mode, the digital camera 20 and the personal computer 40 in FIGS. 8A and 8B are replaced. The infrastructure mode connection setting by the personal computer 40 and the access point 60 is performed in the same flowchart as the flowchart described above. Then, this subroutine is exited.

  Next, referring to the flowcharts of FIGS. 9A and 9B, the subroutine “setting of wireless connection” in the digital camera 20 and the personal computer 40 when the ad hoc mode is selected as the communication method. The operation will be described.

  When the connection setting in the ad hoc mode is selected in the determination of the communication method in step S4b in the flowchart of FIG. 5 (in the case of steps S16, S20, and S26 in the flowchart of FIG. 7), FIG. The subroutines “wireless connection setting a”, “wireless connection setting b”, and “wireless connection setting c” in steps S5a, S6b, and S1c of the flowcharts (b) and (c) are respectively executed.

  When entering the subroutines of FIGS. 9A and 9B, first, in step S41b, it is determined whether or not the personal computer 40 is currently connected to another access point in the infrastructure mode. .

  Here, when currently connected to another access point in the infrastructure mode, the process proceeds to step S42b, and the connection in the infrastructure mode is disconnected. Subsequently, in step S43b, the communication shifts to ad hoc mode communication. On the other hand, if it is not connected to another access point in step S41b, the process proceeds to step S44b, and if there is a current ad hoc mode connection, the connection is disconnected.

  Next, in step S45b, the personal computer 40 notifies the digital camera 20 of the start of connection setting in the ad hoc mode.

  In the digital camera 20, the notification of the connection setting start from the personal computer 40 is received in step S41a. Then, in the subsequent step S42a, it is determined whether or not it is connected to another access point in the infrastructure mode. Here, when connected in the infrastructure mode, the process proceeds to step S43a, and the infrastructure mode is disconnected. Next, in step S44a, the communication shifts to ad hoc mode communication. On the other hand, if it is not connected to another access point in step S42a, the process proceeds to step S45a, and if there is a current ad hoc mode connection, the connection is disconnected.

  Next, in steps S46a and S46b, the digital camera 20 and the personal computer 40 perform connection setting in the ad hoc mode according to the connection setting protocol. Then, this subroutine is exited.

  As described above, according to the present embodiment, it is possible to set the wireless connection without the user being aware of the communication method corresponding to the wireless communication device.

  Next, a modification of this embodiment will be described.

  In the flowcharts of FIGS. 5A, 5B, and 5C in the above-described embodiment, wireless information is requested from the personal computer 40 to the digital camera 20 in step S2b. The wireless information may be requested from the personal computer 40 to the personal computer 40.

  When both the digital camera 20 and the personal computer 40 can request wireless information from the communication partner, the digital camera 20 and the personal computer 40 receive a setting start instruction from the user. The device that waits only for the first time so as to make a request for wireless information.

  Hereinafter, with reference to the flowcharts of FIGS. 10A to 10C, the processing operation for setting the wireless connection between the digital camera 20 and the personal computer 40 in the modification of the embodiment of the present invention. Will be described.

  Note that steps S51a to S54a and steps S51b to S55b in the flowcharts of FIGS. 10A to 10C are the same as steps S1a to S4a and steps S1b to S1b of the flowcharts of FIGS. Since the same processing as S5b is performed, the corresponding step number is referred to and the description is omitted here.

  In the digital camera 20, when the communication method information is received from the personal computer 40 in step S54a, the user is notified of information indicating the communication method in the subsequent step S55a. Then, in step S56a, the user instructs to start connection setting by the notified communication method.

  Next, when the connection setting in steps S57a, S56b, and S51c is completed, information indicating the completion is notified to the user in step S58a. As a method for notifying information to the user, a message may be displayed on the display unit 33 of the digital camera 20, or the communication method is notified by the color of a light emitting diode (LED) that emits light (for example, infrastructure). (Red in the mode, green in the ad hoc mode, etc.), the display method may be changed to indicate that the connection setting is started by blinking the light emitting diode and the connection setting is completed by turning on the light emitting diode.

  As mentioned above, although embodiment of this invention was described, in the range which does not deviate from the summary of this invention other than embodiment mentioned above, this invention can be variously modified.

  Further, the above-described embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, the problem described in the column of the problem to be solved by the invention can be solved, and the effect described in the column of the effect of the invention Can be obtained as an invention.

1 is a diagram illustrating a wireless communication system to which a wireless connection setting method is applied according to an embodiment of the present invention. It is the block diagram which showed the structure of the digital camera 20 of FIG. FIG. 2 is a block diagram showing a configuration of a personal computer 40 in FIG. 1. It is the block diagram which showed the structure of the access point 60 of FIG. FIG. 2 is a diagram for explaining a processing operation for setting a wireless connection between the digital camera 20 and the personal computer 40 in one embodiment of the present invention. FIG. (B) is a flowchart for explaining the operation of the personal computer 40, and (c) is a flowchart for explaining the operation of the access point 60. It is the figure which showed the example of the transmission data in case the digital camera 20 can communicate in an infrastructure mode and an ad hoc mode now in a non-connection state. 6 is a flowchart for explaining detailed operations of a subroutine “communication method determination” in step S4b of the flowchart of FIG. 5; 10 is a flowchart for explaining a processing operation of a subroutine “setting of wireless connection” in the digital camera 20, the personal computer 40, and the access point 60 when connection setting is performed in the infrastructure mode. 6 is a flowchart for explaining a processing operation of a subroutine “setting of wireless connection” in the digital camera 20 and the personal computer 40 when connection setting in the ad hoc mode is performed. FIG. 7 is a diagram for explaining processing operation for setting a wireless connection between the digital camera 20 and the personal computer 40 in a modification of the embodiment of the present invention. FIG. A flowchart for explaining, (b) a flowchart for explaining the operation of the personal computer 40, and (c) a flowchart for explaining the operation of the access point 60.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Wireless communication system, 20 ... Digital camera, 21 ... Lens, 22 ... Imaging part, 23 ... Imaging process part, 24, 47, 65 ... RAM, 25 ... Memory interface (I / F), 26 ... Memory card, 29 44, 61 ... Central processing unit (CPU), 30, 46, 64 ... ROM, 31 ... Operation input unit, 32 ... Display processing unit, 33, 42, 62 ... Display unit, 35 ... Image processing unit, 36, 63 ... wireless communication unit, 38, 50, 66 ... bus, 40 ... personal computer, 41 ... hard disk, 43 ... wireless communication unit, 48 ... input unit, 60 ... access point.

Claims (10)

In a wireless communication terminal that establishes a wireless communication connection with an external communication terminal,
Connection information acquisition means for acquiring connection information including at least a wireless connection status of the external communication terminal and a wireless communication method available for the external communication terminal;
Connection establishment means for establishing a wireless communication connection with the external communication terminal based on the connection information acquired by the connection information acquisition means;
A wireless communication terminal comprising:   The connection information includes the availability of the first wireless communication method in which the external communication terminal performs direct wireless communication connection with another communication terminal, and wireless communication via an access point with the other communication terminal. Whether or not the second wireless communication method for performing communication connection can be used, whether or not a wireless communication connection is established between the external communication terminal and another communication terminal, and between the external communication terminal and another communication terminal The wireless communication terminal according to claim 1, further comprising: usage method information that identifies a wireless communication method that is being used when a wireless communication connection is established.   The wireless communication terminal according to claim 2, wherein the first wireless communication system is an ad hoc mode, and the second wireless communication system is an infrastructure mode.   The connection establishment means determines whether to use the first wireless communication method or the second wireless communication method when establishing a wireless communication connection with the external communication terminal. The wireless communication terminal according to claim 2, wherein the wireless communication terminal is determined based on the connection information acquired by the acquisition means.   5. The wireless communication terminal according to claim 4, further comprising notification means for notifying a user of a wireless communication method to be used when the wireless communication connection is established by the connection establishment means.   6. The wireless communication terminal according to claim 5, wherein the notification means is display means for displaying a wireless communication system to be used and notifying a user.   The connection establishment means is configured to establish a wireless communication connection with the external terminal using the first communication method when both the external communication terminal and the wireless communication terminal can use the first communication method. The wireless communication terminal according to claim 4, wherein the wireless communication terminal is established.   When at least one of the external communication terminal and the wireless communication terminal cannot use the first wireless communication method, the connection establishing means uses the second wireless communication method to connect the external terminal and the external terminal. The wireless communication terminal according to claim 4, wherein the wireless communication connection is established. In a wireless communication connection method for establishing a connection by wireless communication between a wireless communication terminal and an external communication terminal,
Transmitting connection information including at least a wireless connection status of the external communication terminal and a wireless communication method available for the external communication terminal to the wireless communication terminal;
A wireless communication connection method comprising establishing a wireless communication connection between the communication terminal and the external communication terminal based on the connection information. In a computer having a connection means for wireless communication connection with an external communication terminal,
A function for acquiring connection information including at least a wireless connection status of the external communication terminal and a wireless communication method available for the external communication terminal;
A function of establishing a wireless communication connection between the external communication terminal and the computer based on the acquired connection information;
A wireless communication connection program characterized by realizing the above.

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