JP2006310996A - Radio communication system, ad-hoc connection setting information distributing apparatus and ad-hoc connection setting information distributing method used for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio communication system enabling to always acquire ad-hoc connection setting information and to facilitate the formation of ad-hoc connection between terminals having acquired the ad-hoc connection setting information. <P>SOLUTION: Since an ad-hoc connection setting information distributing apparatus 1 always distributes the ad-hoc connection setting information to terminal devices 2-1 and 2-2 via an infrared communication section 18, the terminal devices 2-1 and 2-2 can always acquire the ad-hoc connection setting information from the distribution apparatus 1. The terminal devices 2-1 and 2-2 share the setting of the same ad-hoc network by automatically setting the ad-hoc connection setting information acquired from the distribution apparatus 1. A radio interface 17 of the distribution apparatus 1 and the terminal devices 2-1 and 2-2 form an ad-hoc network of the presently distributed ad-hoc connection setting information. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wireless communication system, an ad hoc connection setting information distribution device, a terminal device, an ad hoc connection setting information distribution method used therefor, and a program thereof, and more particularly, to an ad hoc connection setting information distribution method used for ad hoc (Ad-hoc) connection.

  Conventionally, in order to perform an ad hoc connection, common setting information [authentication method, ESSID (Extended Service Set IDentifier), WEP (Wired Equivalent Privacy) key, etc.] is created by the user himself / herself in advance. Therefore, the burden on the user is great.

  Further, since the ad hoc network is set by itself, there is a risk of hindering AP (application) and other ad hoc communication unless the surrounding situation is grasped.

  Here, the ad hoc connection is a kind of connection by a wireless LAN (Local Area Network) and indicates that it does not go through an access point. In addition, an ad hoc network is a network composed only of terminal devices [personal computer, PDA (Personal Digital Assistant), mobile phone, etc.] that can be connected wirelessly without requiring an access point used in a wireless LAN. Yes, it is also referred to as a self-supporting distributed wireless network (see, for example, Patent Document 1).

JP 2004-228926 A

  In the above-described conventional ad hoc network, when performing ad hoc connection between a plurality of terminal devices, the user himself / herself needs to create ad hoc connection setting information to a partner terminal device that he / she wishes to make an ad hoc connection to notify in advance. There is a problem that the work burden is heavy.

  In addition, in the conventional ad hoc network, since the user creates ad hoc connection setting information by himself / herself, if the surrounding wireless status (ESSID, channel, etc.) is not grasped, a setting that hinders AP and other ad hoc communication is generated. There is a problem that there is a risk that.

  Accordingly, an object of the present invention is to solve the above-described problems, obtain ad hoc connection setting information at any time, and easily establish an ad hoc connection between terminal devices that have obtained the ad hoc connection setting information. To provide a communication system, an ad hoc connection setting information distribution device, a terminal device, an ad hoc connection setting information distribution method used therefor, and a program thereof.

A wireless communication system according to the present invention is a wireless communication system capable of ad hoc connection in which terminal devices are directly connected by wireless,
An ad hoc connection setting information distribution device that constantly distributes ad hoc connection setting information for the ad hoc connection to the terminal device is provided.

  The ad hoc connection setting information distribution device according to the present invention is a means for constantly distributing ad hoc connection setting information for the ad hoc connection to the terminal device in a wireless communication system capable of ad hoc connection where the terminal devices are directly connected to each other by radio. It has.

  The terminal device according to the present invention is a terminal device capable of ad hoc connection directly connected to another device by radio, and always distributes ad hoc connection setting information for the ad hoc connection to the other device. Means.

  The ad hoc connection setting information distribution method according to the present invention is an ad hoc connection setting information distribution method used in a wireless communication system capable of ad hoc connection in which terminal devices are directly connected to each other by radio, wherein the ad hoc connection setting information distribution device A process of constantly distributing ad hoc connection setting information for ad hoc connection to the terminal device is executed.

  An ad hoc connection setting information distribution method program according to the present invention is an ad hoc connection setting information distribution method program used for a wireless communication system capable of ad hoc connection in which terminal devices are directly connected to each other by wireless communication. A process of constantly distributing ad hoc connection setting information for connection to the terminal device is executed.

  That is, the ad hoc connection setting information distribution device of the present invention constantly distributes the ad hoc connection setting information to the terminal device, so that the user can obtain the ad hoc connection setting information at any time, and the ad hoc connection setting information is set in the terminal device. Setting the information makes it possible to share the same ad hoc network settings. Therefore, in the ad hoc connection setting information distribution device of the present invention, it is possible to easily form an ad hoc connection between terminal devices that have acquired the ad hoc connection setting information.

  In the ad hoc connection setting information distribution device of the present invention, the ad hoc connection information to be distributed is changed by acquiring a change request from the terminal device, so that it is possible to form an ad hoc network limited to users.

  Further, the ad hoc connection setting information distribution device of the present invention searches the surrounding wireless usage status [authentication method, ESSID (Extended Service Set IDentifier), channel, etc.], and generates and distributes ad hoc connection setting information different from the search result. By doing so, it is possible to prevent the ad hoc network formed by the ad hoc connection setting information from interfering with surrounding wireless communication.

  Here, the ad hoc connection setting information is network setting information for making an ad hoc connection between terminal devices, and the information content includes an ESSID, an authentication method, a WEP (Wired Equivalent Privacy) key, a certificate, and the like. Further, the ad hoc connection setting information is described in a format [for example, XML (extensible Mark-up Language)] that can be decoded by a function called an ad hoc connection setting information setting unit of the terminal device.

  The ad hoc connection setting information distribution device is a device that distributes the above-mentioned ad hoc connection setting information. An ad hoc connection setting information change request is a request from the terminal device to change the ad hoc connection setting information to be distributed. Signal.

  The present invention is configured and operated as described below, so that ad hoc connection setting information can be acquired at any time, and an ad hoc connection can be easily formed between terminal devices that have acquired the ad hoc connection setting information. The effect that it can be obtained.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a wireless communication system according to an embodiment of the present invention. 1, the wireless communication system according to the embodiment of the present invention includes an ad hoc connection setting information distribution device 1 and terminal devices 2-1 and 2-2 of the wireless communication system.

  The ad hoc connection setting information distribution device 1 includes a control unit 11, a wireless usage status search unit 12, an ad hoc connection setting information generation unit 13, an ad hoc connection setting information distribution unit 14, an ad hoc connection setting information setting unit 15, and a wireless connection. The notification receiving unit 16, the wireless interface unit 17, and the infrared communication unit 18 are configured.

  Since the ad hoc connection setting information distribution device 1 always distributes the ad hoc connection setting information to the terminal devices 2-1 and 2-2 via the infrared communication unit 18, the user can always use the ad hoc connection setting information distribution device 1 from the ad hoc connection setting information distribution device 1. Ad hoc connection setting information can be acquired.

  The terminal devices 2-1 and 2-2 can share the same ad hoc network setting by automatically setting the ad hoc connection setting information acquired from the ad hoc connection setting information distribution device 1. In this case, the radio interface unit 17 of the ad hoc connection setting information distribution device 1 and the terminal devices 2-1 and 2-2 form an ad hoc network of currently distributed ad hoc connection setting information.

  Therefore, the embodiment of the present invention can be implemented, and an ad hoc connection can be easily formed between the terminal devices 2-1 and 2-2 that have acquired the ad hoc connection setting information that is always distributed by the ad hoc connection setting information distribution device 1.

  Here, the ad hoc connection is a kind of connection by a wireless LAN (Local Area Network) and indicates that the terminal devices are directly connected to each other wirelessly without using an access point. In addition, an ad hoc network is a network composed only of terminal devices [personal computer, PDA (Personal Digital Assistant), mobile phone, etc.] that can be connected wirelessly without requiring an access point used in a wireless LAN. Yes, it is also called a self-supporting distributed wireless network.

  FIG. 2 is a block diagram showing a functional configuration of the ad hoc connection setting information distributing apparatus 1 according to the first embodiment of the present invention. In FIG. 2, the ad hoc connection setting information distribution device 1 according to the first embodiment of the present invention has the same system configuration as the wireless communication system according to the embodiment of the present invention shown in FIG. 11, a wireless usage status search unit 12, an ad hoc connection setting information generation unit 13, an ad hoc connection setting information distribution unit 14, an ad hoc connection setting information setting unit 15, a wireless notification notification unit 16, and a wireless interface unit 17. And the infrared communication unit 18.

  The control unit 11 is a function for delivering and controlling data to each function to the ad hoc connection setting information distribution apparatus 1. The wireless usage status search unit 12 has a function of searching for a surrounding wireless usage status [ESSID (Extended Service Set IDentifier), channel, etc.] and transmitting the search result to the ad hoc connection setting information generation unit 13.

  The ad hoc connection setting information generation unit 13 has a function of generating ad hoc connection setting information using an ESSID and channel different from the search result acquired from the wireless usage status search unit 12. The ad hoc connection setting information distributing unit 14 has a function of distributing the ad hoc connection setting information sent from the ad hoc connection setting information generating unit 13 from the infrared communication unit 18 to the terminal devices 2-1 and 2-2.

  The ad hoc connection setting information setting unit 15 is a function that automatically sets new ad hoc connection setting information received from the ad hoc connection setting information generation unit 13 in the wireless interface unit 17.

  The wireless notification receiver 16 has a function of receiving an ad hoc connection setting information change request transmitted from the terminal devices 2-1 and 2-2 from the wireless interface unit 17. The wireless interface unit 17 is a function for performing wireless communication, and the infrared communication unit 18 is a function for performing infrared communication.

  FIG. 3 is a block diagram showing the hardware configuration of the ad hoc connection setting information distributing apparatus according to the first embodiment of the present invention. In FIG. 3, the ad hoc connection setting information distribution device 1 stores a CPU (central processing unit) 101, a main memory 102 that stores a control program 102a executed by the CPU 101, and data used when the CPU 101 executes various processes. The storage device 103, the wireless interface unit 104, and the infrared communication unit 105 are configured. The CPU 101, the main memory 102, the storage device 103, the wireless interface unit 104, and the infrared communication unit 105 are connected to each other via an internal bus 110.

  The storage device 103 holds the wireless usage status search result holding unit 131 that holds the wireless usage status search result by the wireless usage status search unit 12 and the ad hoc connection setting information created by the ad hoc connection setting information generation unit 13. An ad hoc connection setting information holding unit 132 and a wireless notification information holding unit 133 that stores the wireless notification information received by the wireless notification reception unit 16.

  The CPU 101 executes the control program 102a, and the wireless usage status search result holding unit 131, the ad hoc connection setting information holding unit 132, the wireless notification information holding unit 133, the wireless interface unit 104, and the infrared communication unit 105 of the storage device 103. By using the above, each function shown in FIG. 2 is realized.

  FIG. 4 is a block diagram showing a functional configuration of the terminal device according to the first embodiment of the present invention. 4, the terminal device 2 includes a control unit 21, an ad hoc connection setting information acquisition unit 22, an ad hoc connection setting information setting unit 23, an ad hoc connection terminal device search unit 24, a wireless notification transmission unit 25, and an input / output. The unit 26, the wireless interface unit 27, and the infrared communication unit 28 are configured. The terminal devices 2-1 and 2-2 shown in FIG. 1 have the same configuration as the terminal device 2.

  The control unit 21 is a function for delivering and controlling data to each function of the terminal device 2. The ad hoc connection setting information acquisition unit 22 has a function of acquiring ad hoc connection setting information distributed from the ad hoc connection setting information distribution device 1. The ad hoc connection setting information setting unit 23 is a function for setting the ad hoc connection setting information acquired by the ad hoc connection setting information acquiring unit 22 in the wireless interface unit 27.

  The ad hoc connection terminal device search unit 24 has a function of searching for a terminal device in ad hoc connection with the own device through the wireless interface unit 27. The wireless notification transmission unit 25 has a function of transmitting an ad hoc connection setting information change request from the wireless interface unit 27 to the ad hoc connection setting information distribution device 1.

  The input / output unit 26 has a button for operating the terminal device 2, a function for displaying information acquired by the terminal device 2, and a function for notifying the terminal device 2 of various operation events when the user presses the operation button. . The wireless interface unit 27 is a function for performing wireless communication, and the infrared communication unit 28 is a function for performing infrared communication.

  FIG. 5 is a block diagram showing a hardware configuration of the terminal device according to the first embodiment of the present invention. 5, the terminal device 2 includes a CPU (central processing unit) 201, a main memory 202 that stores a control program 202a executed by the CPU 201, and a storage device 203 that stores data used when the CPU 201 executes various processes. The wireless interface unit 204 and the infrared communication unit 205 are configured. The CPU 201, the main memory 202, the storage device 203, the wireless interface unit 204, and the infrared communication unit 205 are connected to each other via an internal bus 210.

  The storage device 203 holds an ad hoc connection setting information holding unit 231 that holds the ad hoc connection setting information acquired by the ad hoc connection setting information acquisition unit 22 and an ad hoc connection terminal device search result by the ad hoc connection terminal device search unit 24. A wireless connection terminal device search result holding unit 232 and a wireless notification information holding unit 233 that stores wireless notification information received by the wireless notification reception unit 205.

  The CPU 201 executes the control program 202 a, the ad hoc connection setting information holding unit 231, the wireless usage status search result holding unit 232, the wireless notification information holding unit 233, the wireless interface unit 204, and the infrared communication unit 205 of the storage device 203. By using the above, each function shown in FIG. 4 is realized.

  6 is a flowchart showing an ad hoc connection setting information distributing operation by the ad hoc connection setting information distributing apparatus 1 shown in FIG. 2, and FIG. 7 is a flowchart showing an ad hoc connection setting information setting operation by the terminal apparatus 2 shown in FIG. is there. FIG. 8 is a flowchart showing the search operation of the terminal device in ad hoc connection by the terminal device 2 shown in FIG. 4, and FIG. 9 is a flowchart showing the change request operation of the ad hoc connection setting information by the terminal device 2 shown in FIG. FIG. 10 is a flowchart showing the ad hoc connection setting information distribution resuming operation by the ad hoc connection setting information distribution apparatus 1 shown in FIG.

  The operation of the wireless communication system according to the first embodiment of the present invention will be described with reference to FIGS. 6 and 10 is realized by the CPU 101 executing the control program 102a in the ad hoc connection setting information distribution device 1, and the operations shown in FIGS. 7 to 9 are performed by the CPU 201 in the terminal device 2 by the control program 202a. It is realized by executing. In the following description, the terminal devices 2-1 and 2-2 are collectively referred to as the terminal device 2.

  When distributing the ad hoc connection setting information, the ad hoc connection setting information distribution device 1 searches for the surrounding wireless usage status by the wireless usage status search unit 12 (step S1 in FIG. 6). Specifically, contents to be searched are ESSID, channel, and the like.

  Subsequently, the ad hoc connection setting information distribution device 1 generates ad hoc connection setting information of an ESSID and a channel different from the content searched by the wireless usage status search unit 12 in the ad hoc connection setting information generation unit 13 (step S2 in FIG. 6). The ad hoc connection setting information setting unit 15 sets the ad hoc connection setting information generated by the ad hoc connection setting information generation unit 13 in the wireless interface unit 17 (step S3 in FIG. 6).

  Finally, the ad hoc connection setting information distribution device 1 distributes the ad hoc connection setting information generated by the ad hoc connection setting information generation unit 13 in the ad hoc connection setting information distribution unit 14 from the infrared communication unit 18 to the terminal device 2 (step in FIG. 6). S4).

  When the terminal device 2 makes an ad hoc connection with another terminal device or a network device, the user holds the infrared communication unit 28 of the terminal device 2 over the infrared communication unit 18 of the ad hoc connection setting information distribution device 1, and the ad hoc connection of the input / output unit 26. When the setting information acquisition button is pressed, an ad hoc connection setting information acquisition event is generated from the input / output unit 26, and the control unit 21 acquires an ad hoc connection setting information acquisition event (step S11 in FIG. 7).

  The terminal device 2 acquires the ad hoc connection setting information from the infrared communication unit 28 in the ad hoc connection setting information acquisition unit 22 (step S12 in FIG. 7), and the ad hoc connection setting information acquisition unit 22 acquires in the ad hoc connection setting information setting unit 23. The set ad hoc connection setting information is set in the wireless interface unit 27 (step S13 in FIG. 7).

  Next, when the terminal device 2 displays an ad hoc-connected terminal device, when the user presses the ad hoc connection terminal device display button of the input / output unit 26, an ad hoc connection terminal device display event is generated from the input / output unit 26. The control unit 21 acquires an ad hoc connection terminal device display event (step S21 in FIG. 8).

  The terminal device 2 searches the ad-hoc connection terminal device search unit 24 for a terminal device ad-hoc connected to itself (step S22 in FIG. 8), and displays the search result in the input / output unit 26 (step S23 in FIG. 8). . In this case, the contents to be searched are the number of terminals that are ad-hoc connected at the time of the search, and the MAC ID (Media Access Control IDentifier) of the terminal apparatus that is ad-hoc connected.

  Further, when the terminal device 2 transmits an ad hoc connection setting information change request, this procedure completes the above setting procedure, and the connected terminal device is confirmed in the search result display procedure of the ad hoc connected terminal device. As a result, the process starts from a state in which all scheduled terminal devices have been connected and it is determined that no further ad hoc connection is permitted.

  When the user presses the ad hoc connection setting information change request button of the input / output unit 26, the terminal device 2 generates an ad hoc connection setting information change request event from the input / output unit 26, and the control unit 21 acquires the ad hoc connection setting information change request. (Step S31 in FIG. 9). The terminal device 2 transmits an ad hoc connection setting information change request from the wireless interface unit 27 to the ad hoc connection setting information distribution device 1 by the wireless notification transmission unit 25 (step S32 in FIG. 9).

  Further, when the ad hoc connection setting information distribution device 1 changes the currently distributed ad hoc connection setting information, the wireless interface unit 17 sends the ad hoc connection setting information change request transmitted from the terminal device 2 by the wireless notification reception unit 16. (Step S41 in FIG. 10), the ad hoc connection setting information distribution unit 14 stops distributing the ad hoc connection setting information (step S42 in FIG. 10).

  Thereafter, the ad hoc connection setting information distribution device 1 searches for the surrounding wireless usage status by the wireless usage status search unit 12 (step S43 in FIG. 10), and the wireless usage status search unit 12 searches by the ad hoc connection setting information generation unit 13. An ad hoc connection setting information of an ESSID and a channel different from the above contents is generated (step S44 in FIG. 10).

  The ad hoc connection setting information distribution device 1 sets the new ad hoc connection setting information generated by the ad hoc connection setting information generation unit 13 in the ad hoc connection setting information setting unit 15 in the wireless interface unit 17 (step S45 in FIG. 10). The ad hoc connection setting information distribution device 1 resumes the distribution of the new ad hoc connection setting information generated by the ad hoc connection setting information generation unit 13 from the infrared communication unit 18 in the ad hoc connection setting information distribution unit 14 (step S46 in FIG. 10).

  Thus, in the first embodiment of the present invention, the ad hoc connection setting information distribution device 1 always distributes the ad hoc connection setting information, so that the user of the terminal device 2 can acquire the ad hoc connection setting information at any time. . In the first embodiment of the present invention, the same ad hoc network setting can be shared by setting the ad hoc connection setting information in the terminal device 2, and the ad hoc between the terminal devices that have acquired the ad hoc connection setting information can be shared. Connections can be easily formed.

  In the first embodiment of the present invention, the ad hoc connection setting information distribution device 1 acquires a change request from the terminal device 2 to change the ad hoc connection information to be distributed, thereby forming an ad hoc network limited to users. be able to.

  In the first embodiment of the present invention, since the ad hoc connection setting information distribution device 1 can change only the terminal device 2 that has acquired and set the ad hoc connection setting information, the ad hoc connection setting information is changed unnecessarily. It will not be done.

  In the first embodiment of the present invention, the ad hoc connection setting information distribution device 1 searches the surrounding wireless usage status (ESSID, channel, etc.), and generates and distributes ad hoc connection setting information different from the search result. It is possible to prevent the wireless communication around the ad hoc network formed by the ad hoc connection setting information distributed by the ad hoc connection setting information distributing apparatus 1 from being hindered.

  FIG. 11 is a block diagram showing a functional configuration of an ad hoc connection setting information distributing apparatus according to the second embodiment of the present invention. 11, the configuration of the ad hoc connection setting information distributing apparatus 3 according to the second embodiment of the present invention is the same as that of the first embodiment of the present invention shown in FIG. 2 except that a wireless ad hoc connection setting information transmitting unit 31 is provided. It is the same as that of the ad hoc connection setting information distribution apparatus 1 by an example, and the same code | symbol is attached | subjected to the same component. However, the hardware configuration of the ad hoc connection setting information distribution device 3 according to the second exemplary embodiment of the present invention is the same as the configuration shown in FIG.

  The wireless ad hoc connection setting information transmitting unit 31 has a function of distributing the ad hoc connection setting information transmitted from the ad hoc connection setting information generating unit 13 from the wireless interface unit 17 to the terminal devices 2-1 and 2-2.

  FIG. 12 is a block diagram showing a functional configuration of a terminal apparatus according to the second embodiment of the present invention. 12, the configuration of the terminal device 4 according to the second embodiment of the present invention is the same as that of the terminal device 4 according to the first embodiment of the present invention shown in FIG. 4 except that a wireless ad hoc connection setting information receiving unit 41 is provided. The same constituent elements are denoted by the same reference numerals. However, the hardware configuration of the terminal device 4 according to the second embodiment of the present invention is the same as the configuration shown in FIG.

  The wireless ad hoc connection setting information receiving unit 41 has a function of acquiring ad hoc connection setting information distributed from the ad hoc connection setting information distributing apparatus 1 via the wireless interface unit 27.

  FIG. 13 is a flowchart showing the distribution request operation for ad hoc connection setting information via wireless by the terminal device 4 shown in FIG. 12, and FIG. 14 shows the distribution operation for ad hoc connection setting information by the ad hoc connection setting information distribution device 3 shown in FIG. FIG. 15 is a flowchart showing the setting operation of the ad hoc connection setting information by the terminal device 4 shown in FIG.

  The operation of the wireless communication system according to the second embodiment of the present invention will be described with reference to FIG. 1 and FIGS. The operation shown in FIG. 14 is realized by the CPU 101 executing the control program 102a in the ad hoc connection setting information distribution device 3, and the operation shown in FIGS. 13 and 15 is executed by the CPU 201 in the terminal device 4. This is realized. In the following description, the terminal devices 2-1 and 2-2 are collectively referred to as the terminal device 2.

  The operation of the wireless communication system according to the second embodiment of the present invention is performed in the following order. That is, the distribution of the ad hoc connection setting information by the ad hoc connection setting information distribution device 3 shown in FIG. 6, the setting of the ad hoc connection setting information by the terminal device 4 shown in FIG. 7, and the terminal that is ad hoc connected by the terminal device 4 shown in FIG. Device search, wireless ad hoc connection setting information distribution request by terminal device 4 shown in FIG. 13, ad hoc connection setting information distribution by ad hoc connection setting information distribution device 3 shown in FIG. 14, ad hoc by terminal device 4 shown in FIG. Connection setting information setting, terminal device 4 shown in FIG. 8 searching for an ad hoc connection terminal device, ad hoc connection setting information change request by terminal device 4 shown in FIG. 9, ad hoc connection setting information distribution device shown in FIG. 3 according to the second embodiment of the present invention in the order of resuming the distribution of ad hoc connection setting information by 3 The operation of the signal system is carried out. In the following description, the operation of the wireless communication system according to the second embodiment of the present invention will be described as different from the operation of the wireless communication system according to the first embodiment of the present invention.

  When the terminal device 4 transmits an ad hoc connection setting information change request, when the user presses the wireless ad hoc connection setting information distribution request event button of the input / output unit 26, the wireless ad hoc connection setting information distribution request event is input from the input / output unit 26. Occurs, and the control unit 21 acquires an ad hoc connection setting information distribution request event via wireless (step S51 in FIG. 13).

  The terminal device 4 transmits a wireless ad hoc connection setting information distribution request from the wireless interface unit 27 to the ad hoc connection setting information distribution device 3 by the wireless ad hoc connection setting information transmission unit 41 (step S52 in FIG. 13).

  When the ad hoc connection setting information distribution device 3 receives the wireless ad hoc connection setting information distribution request, the wireless ad hoc connection setting information distribution request transmitted from the terminal device 2 by the wireless notification reception unit 16 is transmitted from the wireless interface unit 17. When received (step S61 in FIG. 14), the ad hoc connection setting information distribution unit 14 stops distributing the ad hoc connection setting information (step S62 in FIG. 14).

  Thereafter, the ad hoc connection setting information distribution device 3 searches for the surrounding wireless usage status by the wireless usage status search unit 12 (step S63 in FIG. 14), and the wireless usage status search unit 12 searches by the ad hoc connection setting information generation unit 13. ESSID and channel ad hoc connection setting information different from the above-described content is generated (step S64 in FIG. 14).

  In the ad hoc connection setting information distribution device 3, the ad hoc connection setting information setting unit 15 sets the new ad hoc connection setting information generated by the ad hoc connection setting information generation unit 13 in the wireless interface unit 17 (step S65 in FIG. 14). The ad hoc connection setting information distribution device 3 distributes the new ad hoc connection setting information generated by the ad hoc connection setting information generation unit 13 from the wireless interface unit 17 by the wireless ad hoc connection setting information transmission unit 31 (step S66 in FIG. 14).

  When the terminal device 4 makes an ad hoc connection with another terminal device or a network device, the ad hoc connection setting information receiving unit 41 via wireless acquires the ad hoc connection setting information from the wireless interface unit 27 (step S71 in FIG. 15), and the ad hoc connection setting. The information setting unit 23 sets the ad hoc connection setting information acquired by the wireless ad hoc connection setting information receiving unit 41 in the wireless interface unit 27 (step S72 in FIG. 15).

  However, when changing the ad hoc connection setting information or when changing to the distribution of the ad hoc connection setting information from the infrared communication unit 18, the ad hoc connection setting information is distributed from the wireless interface unit 17 by the wireless ad hoc connection setting information transmitting unit 31. Stop.

  As described above, in the second embodiment of the present invention, anyone can acquire ad hoc connection setting information, and then select a member and newly distribute setting information to the member. An ad hoc network with limited members can be formed.

  FIG. 16 is a block diagram showing a functional configuration of an ad hoc connection setting information distributing apparatus according to a third embodiment of the present invention. 16, the configuration of the ad hoc connection setting information distribution device 5 according to the third embodiment of the present invention is the same as that of the second embodiment of the present invention shown in FIG. 11 except that an ad hoc connection terminal device search unit 51 is provided. It is the same as the ad hoc connection setting information distribution apparatus 3, and the same components are denoted by the same reference numerals. However, the hardware configuration of the ad hoc connection setting information distributing apparatus 5 according to the third embodiment of the present invention is the same as the configuration shown in FIG.

  The ad hoc connection terminal device search unit 51 has a function of searching through the wireless interface unit 17 for the terminal devices 2-1 and 2-2 that are in ad hoc connection with the ad hoc connection setting information distribution device 5. The content searched by the ad hoc connection terminal device search unit 51 is the number of terminal devices connected in an ad hoc manner.

  FIG. 17 is a flowchart showing the operation of specifying the number of ad hoc connection terminal devices by the terminal device 4 shown in FIG. 12, and FIG. 18 shows the ad hoc connection setting information distributed by the ad hoc connection setting information distribution device 5 shown in FIG. FIG. 19 is a flowchart showing an ad hoc connection setting information distribution resuming operation by the ad hoc connection setting information distributing apparatus 5 shown in FIG.

  The operation of the wireless communication system according to the third embodiment of the present invention will be described with reference to FIG. 1 and FIGS. 18 and 19 is realized by the CPU 101 executing the control program 102a in the ad hoc connection setting information distribution device 5, and the operation shown in FIG. 17 is executed by the CPU 201 in the terminal device 4. This is realized. In the following description, the terminal devices 2-1 and 2-2 are collectively referred to as the terminal device 2.

  The operation of the wireless communication system according to the third embodiment of the present invention is performed in the following order. That is, the distribution of the ad hoc connection setting information by the ad hoc connection setting information distribution device 5 shown in FIG. 6, the setting of the ad hoc connection setting information by the terminal device 4 shown in FIG. 7, and the number of ad hoc connection terminal devices by the terminal device 4 shown in FIG. Specification request, change of ad hoc connection setting information distributed by the ad hoc connection setting information distribution device 5 shown in FIG. 18, setting of ad hoc connection setting information by the terminal device 4 shown in FIG. 7, distribution of ad hoc connection setting information shown in FIG. The operation of the wireless communication system according to the third embodiment of the present invention is performed in the order of restarting the distribution of the ad hoc connection setting information by the device 5. In the following description, the operation of the wireless communication system according to the third embodiment of the present invention will be described as different from the operation of the wireless communication system according to the second embodiment of the present invention.

  In addition, when the ad hoc connection setting information distributed by the ad hoc connection setting information distribution device 5 shown in FIG. 18 is changed, the changed ad hoc connection is transmitted from the wireless interface unit 27 to the terminal device 4 that has transmitted the ad hoc connection terminal device number designation request. Distribute the setting information.

  When the terminal device 4 transmits an ad hoc connection terminal device number specification request, when the user presses the ad hoc connection terminal device number specification request button of the input / output unit 26 (specifies the number of ad hoc connection devices), the input / output unit 16 performs ad hoc. The designation request event for the number of connected terminal devices occurs, and the control unit 21 acquires the designation request event for the number of ad hoc connected terminal devices (step S81 in FIG. 17).

  In the terminal device 4, the wireless notification transmission unit 25 transmits a request for specifying the number of ad hoc connection terminal devices from the wireless interface unit 27 to the ad hoc connection setting information distribution device 5 (step S82 in FIG. 17).

  When changing the distributed ad hoc connection setting information, the ad hoc connection setting information distribution device 5 receives a request for specifying the number of ad hoc connection terminal devices from the wireless interface unit 17 by the wireless notification receiving unit 16 (step S91 in FIG. 18). ) The ad hoc connection setting information distribution unit 14 stops the distribution of the ad hoc connection setting information (step S92 in FIG. 18).

  Thereafter, the ad hoc connection setting information distribution device 5 searches the surrounding wireless usage status by the wireless usage status search unit 12 (step S93 in FIG. 18), and the wireless usage status search unit 12 searches by the ad hoc connection setting information generation unit 13. ESSID and channel ad hoc connection setting information different from the above-described content is generated (step S94 in FIG. 18).

  The ad hoc connection setting information distribution device 5 sets the new ad hoc connection setting information generated by the ad hoc connection setting information generation unit 13 in the ad hoc connection setting information setting unit 15 in the wireless interface unit 17 (step S95 in FIG. 18). The ad hoc connection setting information distribution device 5 has transmitted a new ad hoc connection setting information generated by the ad hoc connection setting information generation unit 13 in the wireless ad hoc connection setting information transmission unit 31 from the wireless interface unit 17 to the ad hoc connection terminal device number designation request. It is distributed to the terminal device (step S96 in FIG. 18).

  Thereafter, the ad hoc connection setting information distribution device 5 resumes distribution of the new ad hoc connection setting information generated by the ad hoc connection setting information generation unit 13 from the infrared communication unit 18 in the ad hoc connection setting information distribution unit 14 (step in FIG. 18). S97).

  When changing the distributed ad hoc connection setting information, the ad hoc connection setting information distributing device 5 searches the ad hoc connection setting information distributing device 5 for a terminal device ad hoc connected to the ad hoc connection terminal information search unit 51 (FIG. 19 step S101). In this case, the content to be searched is the number of terminal devices that are ad-hoc connected at the time of the search.

  The ad hoc connection setting information distribution device 5 determines whether or not the result of the search by the ad hoc connection terminal device search unit 51 has reached the number specified in the ad hoc connection terminal device number specification request (step S102 in FIG. 19). Has reached the number specified in the ad hoc connection terminal number specification request, the ad hoc connection setting information distribution unit 14 stops distributing the ad hoc connection setting information (step S103 in FIG. 19).

  Thereafter, the ad hoc connection setting information distribution device 5 searches for the surrounding wireless usage status by the wireless usage status search unit 12 (step S104 in FIG. 19), and the wireless usage status search unit 12 searches by the ad hoc connection setting information generation unit 13. An ad hoc connection setting information of an ESSID and a channel different from the above contents is generated (step S105 in FIG. 19).

  The ad hoc connection setting information distribution device 5 sets the new ad hoc connection setting information generated by the ad hoc connection setting information generation unit 13 in the ad hoc connection setting information setting unit 15 in the wireless interface unit 17 (step S106 in FIG. 19). The ad hoc connection setting information distribution device 5 resumes the distribution of the new ad hoc connection setting information generated by the ad hoc connection setting information generation unit 13 from the infrared communication unit 18 in the ad hoc connection setting information distribution unit 14 (step S107 in FIG. 19).

  Thus, in the third embodiment of the present invention, the ad hoc connection setting information distribution device 5 counts the number of terminal devices that are connected by ad hoc, and the number of terminal devices that are connected by ad hoc becomes the limit number specified by the terminal device. When it is confirmed that it has been reached, it is possible to limit the number of terminal devices to be connected by ad hoc by changing the ad hoc connection setting information to be distributed.

  In each of the above-described embodiments, ad hoc connection setting information is distributed using wireless or infrared as an information distribution medium. A circuit) card, a QR (Quick Response) code, an RFID (Radio Frequency IDentification) tag, or the like can also be used.

  In each of the above embodiments, the ad hoc connection setting information distribution devices 1, 3, and 5 are provided. However, the functions installed in the ad hoc connection setting information distribution devices 1, 3, and 5 are the terminal devices 2, 2-1. , 2-2, and 4 can be mounted, and is not limited to the above embodiment. In this case, the user can construct an ad hoc network at any time by the terminal device equipped with the function of the ad hoc connection setting information distribution device.

  The present invention can be applied to a terminal device capable of wireless ad hoc connection such as a PC (Personal Computer), a PDA (Personal Digital Assistant), and a wireless mobile phone.

It is a block diagram which shows the structure of the radio | wireless communications system by embodiment of this invention. It is a block diagram which shows the function structure of the ad hoc connection setting information distribution apparatus by 1st Example of this invention. It is a block diagram which shows the hardware constitutions of the ad hoc connection setting information distribution apparatus by 1st Example of this invention. It is a block diagram which shows the function structure of the terminal device by 1st Example of this invention. It is a block diagram which shows the hardware constitutions of the terminal device by 1st Example of this invention. 3 is a flowchart showing an operation of distributing ad hoc connection setting information by the ad hoc connection setting information distributing apparatus shown in FIG. It is a flowchart which shows the setting operation | movement of the ad hoc connection setting information by the terminal device shown in FIG. 5 is a flowchart showing a search operation of a terminal device that is connected by ad hoc by the terminal device shown in FIG. 5 is a flowchart showing an ad hoc connection setting information change request operation by the terminal device shown in FIG. 4. 3 is a flowchart showing an operation for resuming distribution of ad hoc connection setting information by the ad hoc connection setting information distributing apparatus shown in FIG. 2. It is a block diagram which shows the function structure of the ad hoc connection setting information distribution apparatus by 2nd Example of this invention. It is a block diagram which shows the function structure of the terminal device by the 2nd Example of this invention. 13 is a flowchart showing an operation of requesting distribution of wireless ad hoc connection setting information by the terminal device shown in FIG. It is a flowchart which shows the distribution operation | movement of the ad hoc connection setting information by the ad hoc connection setting information distribution apparatus shown in FIG. It is a flowchart which shows the setting operation | movement of the ad hoc connection setting information by the terminal device shown in FIG. It is a block diagram which shows the function structure of the ad hoc connection setting information distribution apparatus by 3rd Example of this invention. It is a flowchart which shows the designation request | requirement operation | movement of the number of ad hoc connection terminal devices by the terminal device shown in FIG. It is a flowchart which shows the change operation | movement of the ad hoc connection setting information distributed by the ad hoc connection setting information distribution apparatus shown in FIG. It is a flowchart which shows the distribution resumption operation | movement of the ad hoc connection setting information by the ad hoc connection setting information distribution apparatus 5 shown in FIG. FIG. 17 is a flowchart showing an ad hoc connection setting information distribution resuming operation by the ad hoc connection setting information distributing apparatus shown in FIG. 16. FIG.

Explanation of symbols

1, 3, 5 Ad-hoc connection setting information distribution device 2, 2-1, 2-2, 4 Terminal device
11, 21 Control unit
12 Wireless usage status search section
13 Ad hoc connection setting information generator
14 Ad Hoc Connection Setting Information Distribution Department
15, 23 Ad hoc connection setting information setting section
16 Wireless notification receiving unit 17, 27, 104, 204 Wireless interface unit 18, 28, 105, 205 Infrared communication unit
22 Ad hoc connection setting information acquisition unit
24 Ad hoc connection terminal device search section
25 Notification transmission part via radio
26 I / O section
31 Ad-hoc connection setting information transmitter via wireless
41 Wireless ad hoc connection setting information receiver
51 Ad-hoc connection terminal device search section
101, 201 CPU
102,202 main memory
102a, 202a control program
103, 203 storage device
110, 210 Internal bus
131 Wireless Usage Status Search Result Holding Unit
132,231 Ad hoc connection setting information holding unit
133,233 Wireless notification information holding unit
232 Wireless connection terminal device search result holding unit

Claims (31)

A wireless communication system capable of ad hoc connection in which terminal devices are directly connected by wireless,
A wireless communication system, comprising: an ad hoc connection setting information distribution device that constantly distributes ad hoc connection setting information for the ad hoc connection to the terminal device.   The wireless communication system according to claim 1, wherein the ad hoc connection setting information distribution device distributes the ad hoc connection setting information using an information distribution medium.   The information distribution medium is at least one of wireless, infrared, visible light, Bluetooth (registered trademark), non-contact IC card, QR (Quick Response) code, and RFID (Radio Frequency IDentification) tag. Item 3. A wireless communication system according to Item 2.   The wireless communication system according to any one of claims 1 to 3, wherein the ad hoc connection setting information distribution device changes the ad hoc connection setting information distributed in response to a change request from the terminal device. . The ad hoc connection setting information distribution device includes a wireless interface for performing wireless communication with the terminal device, and means for setting the ad hoc connection setting information distributed at that time in the wireless interface,
5. The terminal device that acquires and sets the ad hoc connection setting information is capable of wireless communication with the ad hoc connection setting information distribution device, according to any one of claims 1 to 4. Wireless communication system.   The ad hoc connection setting information distribution device includes means for searching for surrounding wireless usage conditions, and means for generating and distributing unused ad hoc connection setting information based on the search result. The radio | wireless communications system in any one of Claims 1-5.   The ad hoc connection setting information distribution device is a means for searching for the number of terminal devices that are in ad hoc connection with the own device, and the ad hoc connection that is distributed when the search result reaches a limit number specified by the terminal device. 7. The wireless communication system according to claim 1, further comprising means for changing setting information.   8. The wireless communication system according to claim 1, wherein the ad hoc connection setting information distribution device is any one of the terminal devices.   In a wireless communication system capable of ad hoc connection in which terminal devices are directly connected to each other by radio, ad hoc connection setting information characterized by comprising means for constantly distributing ad hoc connection setting information for the ad hoc connection to the terminal devices Distribution device.   10. The ad hoc connection setting information distribution device according to claim 9, wherein the ad hoc connection setting information is distributed using an information distribution medium.   The information distribution medium is at least one of wireless, infrared, visible light, Bluetooth (registered trademark), non-contact IC card, QR (Quick Response) code, and RFID (Radio Frequency IDentification) tag. Item 11. The ad hoc connection setting information distribution device according to Item 10.   12. The ad hoc connection setting information distribution device according to claim 9, wherein the ad hoc connection setting information distributed in response to a change request from the terminal device is changed. A wireless interface for performing wireless communication with the terminal device, and means for setting the ad hoc connection setting information distributed at that time in the wireless interface,
13. The ad hoc connection setting information distribution device according to claim 9, wherein wireless communication is possible between a terminal device that acquires and sets the ad hoc connection setting information and the device itself. .   14. The method according to claim 9, further comprising means for searching for a surrounding wireless usage state, and means for generating and distributing ad hoc connection setting information not used based on the search result. An ad hoc connection setting information distribution device.   Means for searching for the number of terminal devices that are in an ad hoc connection with the own device, and means for changing the ad hoc connection setting information distributed when the search result reaches a limit number specified by the terminal device. The ad hoc connection setting information distribution device according to claim 9, wherein the ad hoc connection setting information distribution device is provided.   A terminal device capable of ad hoc connection for direct wireless connection with another device, comprising: means for constantly distributing ad hoc connection setting information for the ad hoc connection to the other device Terminal device to do.   The terminal device according to claim 16, wherein the ad hoc connection setting information is distributed using an information distribution medium.   The information distribution medium is at least one of wireless, infrared, visible light, Bluetooth (registered trademark), non-contact IC card, QR (Quick Response) code, and RFID (Radio Frequency IDentification) tag. Item 18. The terminal device according to Item 17.   19. The terminal device according to claim 16, wherein the ad hoc connection setting information distributed in response to a change request from the other device is changed. A wireless interface for performing wireless communication with the other device, and means for setting the ad hoc connection setting information distributed at that time in the wireless interface,
The terminal device according to any one of claims 16 to 19, wherein wireless communication is possible between another device that acquires and sets the ad hoc connection setting information and the device itself.   21. The method according to any one of claims 16 to 20, further comprising means for searching for a surrounding wireless usage state, and means for generating and distributing ad hoc connection setting information that is not used based on the search result. A terminal device according to the above.   Means for searching for the number of other devices that are in ad hoc connection with the own device, and means for changing the ad hoc connection setting information distributed when the search result reaches a predetermined limit number. The terminal device according to any one of claims 16 to 21, wherein the terminal device is characterized in that   An ad hoc connection setting information distribution method used in a wireless communication system capable of ad hoc connection in which terminal devices are directly connected to each other by wireless communication, wherein the ad hoc connection setting information distribution device stores the ad hoc connection setting information for the ad hoc connection. A method for distributing ad hoc connection setting information, characterized by executing a process of constantly distributing to a terminal device.   24. The ad hoc connection setting information distribution method according to claim 23, wherein the ad hoc connection setting information distribution device executes a process of distributing the ad hoc connection setting information using an information distribution medium.   The information delivery medium is at least one of wireless, infrared, visible light, Bluetooth (registered trademark), a non-contact IC card, a QR (Quick Response) code, and an RFID (Radio Frequency IDentification) tag. Item 25. An ad hoc connection setting information distribution method according to Item 24.   26. The ad hoc connection setting information distribution device executes a process of changing the ad hoc connection setting information distributed in response to a change request from the terminal device. Ad hoc connection setting information distribution method. The ad hoc connection setting information distribution device executes a process of setting the ad hoc connection setting information distributed at that time to a wireless interface that performs wireless communication with the terminal device;
27. The terminal device that has acquired and set the ad hoc connection setting information is capable of wireless communication with the ad hoc connection setting information distribution device. Ad hoc connection setting information distribution method.   The ad hoc connection setting information distribution device executes a process of searching for a surrounding wireless usage state, and a process of generating and distributing ad hoc connection setting information that is not used based on a search result. The ad hoc connection setting information distribution method according to any one of claims 23 to 27.   The ad hoc connection setting information distribution device searches for the number of terminal devices that are in ad hoc connection with its own device, and the ad hoc connection is distributed when the search result reaches the limit number specified by the terminal device. The ad hoc connection setting information distribution method according to any one of claims 23 to 28, wherein a process for changing the setting information is executed.   30. The ad hoc connection setting information distribution method according to claim 23, wherein the ad hoc connection setting information distribution device is one of the terminal devices.   A program of an ad hoc connection setting information distribution method used in a wireless communication system capable of ad hoc connection in which terminal devices are directly connected to each other by wireless communication, wherein the ad hoc connection setting information for the ad hoc connection is stored in the terminal device. A program for executing a process that is always distributed.

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