JP2008099342A - Device, system and method for communication control, communication terminal, method for communication, and program making computer function as communication control device and as communication terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To connect an unspecified communication terminal to a network. <P>SOLUTION: If terminal information is not registered (NO in S104) when a connection request is received from a communication terminal, a communication method, on receipt of a request to send a communication program (YES in step 108), sends the communication program to the communication terminal (S110). When the terminal information meets connection conditions (YES in S114) by authenticating the terminal information received from the communication terminal where the communication program is executed, the communication method registers the terminal information and an expiration date (S116) and connects the communication terminal to the Internet (S118). When a connection termination condition is met (YES in S122), the communication method ends the connection between the communication terminal and the Internet (S124). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a technique for connecting communication terminals to a network, and more particularly to a technique for connecting an unspecified number of communication terminals to a network.

  As portable communication terminals become widespread, opportunities for using wireless lines to connect communication terminals and networks are increasing. One of such opportunities is a wireless network connection service at a specific location (for example, a store or a station) called a hot spot service. In this hot spot service, a user can obtain information (for example, sale information, train operation status, etc.) in real time using a mobile terminal.

  In general, when a terminal connects to a network, authentication is performed as to whether or not the terminal is a valid terminal. Authentication of a communication terminal is also required for network connection via a wireless line. In this case, problems such as eavesdropping of authentication information or unauthorized access due to so-called “spoofing” using the information occur due to the use of a wireless line.

  Japanese Patent Laid-Open No. 2001-111544 (Patent Document 1) discloses an authentication method for solving such a problem in a wireless LAN (Local Area Network) system. The authentication method includes a step in which a communication terminal requests authentication for permitting connection to an access point, a step in which the access point requested to authenticate requests the authentication server to perform authentication, A step of authenticating based on a MAC (Media Access Control) address, and a step of performing encryption authentication based on a predetermined encryption algorithm with an access point.

According to this authentication method, when a communication terminal transmits an authentication request to an access point, the access point requests the authentication server to authenticate the communication terminal. The authentication server determines whether or not the MAC address of the communication terminal requesting connection is included in the MAC address of the communication terminal registered in advance. If the MAC address is included in the registered MAC address, the authentication server transmits the challenge text to the access point. The access point transmits the challenge text to the communication terminal. The communication terminal transmits a response text to the access point based on the challenge text. After the response text is transmitted to the authentication server, when the response text is authenticated by the authentication server, the authentication server transmits a success code to the communication terminal via the access point. When the above authentication process is completed, the communication terminal can connect to the access point. In this way, authentication that can prevent unauthorized access due to stolen authentication information becomes possible.
JP 2001-111544 A

  However, in the authentication method disclosed in the above publication, the communication terminal needs to be registered in advance in the access point. That is, there is a problem that only a user of a communication terminal registered in advance as a user at the access point can connect to the access point.

  In addition, if terminal information for authentication is stored in a storage device, there is a problem that the load on the storage device increases as the number of users increases.

  The present invention has been made to solve such problems, and an object of the present invention is to provide a communication control apparatus and communication control capable of providing a network connection service to users of unspecified communication terminals. It is to provide a method, a communication terminal and a communication method that can use such a connection service, a program for realizing the method, and a recording medium on which the program is recorded.

  A communication control device according to a first invention is connected to a communication line, receiving means for receiving information from a communication terminal, and storage means connected to the receiving means for storing terminal information included in the information. Connected to the storage means, for confirming whether the terminal information is legitimate information, and connected to the storage means for extracting identification information unique to the communication terminal based on the terminal information The extraction means, information unique to the processing by the communication control device, the acquisition means for acquiring the unique information uniquely determined when the terminal information is received, the extraction means and the acquisition means, and the identification information and A generating unit for generating determination information based on the unique information; a determination unit connected to the generating unit; for determining whether the terminal information and the determination information satisfy a predetermined condition; Judge It is connected to, including if the determination information and the terminal information are judged to satisfy the predetermined condition, a predetermined time, and a permission means for permitting connection between the communication terminal and the network.

  According to the first invention, the communication control device communicates information with the communication terminal via the communication line, and controls the connection of the communication terminal to the network. The information includes terminal information of the communication terminal. The receiving means of this communication control apparatus receives information from the communication terminal. The storage means stores terminal information included in the received information. The confirmation means confirms whether the terminal information is valid information. Based on the fact that the terminal information is valid information, the extracting means extracts identification information (for example, a MAC address) unique to the communication terminal from the terminal information. The obtaining means obtains unique information (for example, reception time of terminal information, information processing time, etc.) that is unique to the processing of the communication control apparatus and is uniquely determined when the terminal information is received. The generation means generates determination information based on such identification information and unique information. The determination means satisfies the predetermined condition between the determination information and the terminal information (for example, the determination information and the terminal information include a common encryption key, or the determination information and the terminal information are generated at substantially the same time. Or the like). When it is determined that the determination information and the terminal information satisfy a predetermined condition, the permission unit permits the connection between the communication terminal and the network (for example, the Internet, an intranet, etc.) for a predetermined time. When the connection is permitted, the connection between the communication terminal and the network is established. Thereby, the communication control apparatus can connect an unspecified communication terminal to a network. As a result, it is possible to provide a communication control apparatus that can connect an unspecified communication terminal to the network.

  The communication control apparatus according to the second invention further includes a time measuring means for measuring time in addition to the configuration of the first invention. The acquisition means includes means for acquiring the reception time at which the terminal information is received as specific information. The determining means includes means for determining whether or not the difference between the transmission time and the reception time is within a predetermined range. The permitting means includes means for permitting the connection for a predetermined time when it is determined that the difference between the transmission time and the reception time is within a predetermined range.

  According to the second invention, the terminal information includes a transmission time indicating the time when the information is transmitted. The time measuring means measures time in the communication control device. The acquisition means acquires the reception time when the terminal information is received as the specific information. That is, the transmission time and reception time of the terminal information are used as information for determining whether or not the information processing apparatus permits connection to the network. The determining means determines whether or not the difference between the transmission time and the reception time is within a predetermined range (for example, within one minute). When the difference is determined to be within a predetermined range (that is, within one minute after the communication terminal transmits the terminal information), the permission means connects to the communication terminal for a predetermined time. to approve. On the other hand, if it is determined that the difference is not within a predetermined range, connection of the communication terminal to the network is not permitted. That is, for example, when terminal information that has been illegally obtained by a third party is transmitted, the transmission time included in the terminal information is a time deviating from the reception time. Therefore, the terminal information is regarded as illegal information. In this case, the communication terminal that transmits the terminal information (that is, the communication terminal used by a third party) is not permitted to connect to the network. Thus, when a communication terminal generates terminal information and immediately transmits it to the communication control device, the communication terminal can connect to the network via the communication control device. Thereby, an unspecified communication terminal can be connected to a network.

  In addition to the configuration of the second invention, the communication control device according to the third invention corresponds to the calculation means for calculating the expiration date of the terminal information, and the terminal information and the expiration date when the connection is permitted An expiration date storage means for storing the information, an information determination means for determining whether the terminal information is invalid every predetermined time, and the terminal information is determined to be invalid And a release means for releasing the connection between the communication terminal and the network.

  According to the third invention, the calculation means calculates the expiration date of the terminal information when the connection of the communication terminal is permitted. The expiration date storage means stores the terminal information and the expiration date in association with each other. The information determination unit determines whether the terminal information is invalid at predetermined time intervals. When it is determined that the terminal information is invalid, the release unit releases the connection between the communication terminal and the network. Thereby, only the communication terminal whose terminal information is valid can be connected to the network.

  In addition to the configuration of any one of the first to third inventions, the communication control device according to the fourth aspect of the invention includes message transmission means for transmitting a message to the communication terminal based on the result of determination by the determination means, Program transmission means for transmitting the communication program to the communication terminal based on the received information is further included. The message is a message displayed on the communication terminal and requesting an answer as to whether or not to request transmission of the communication program from the user of the communication terminal. When the communication program is executed, identification information is acquired in the communication terminal, terminal information is generated from the identification information, and the terminal information is transmitted to the communication control device.

  According to the fourth invention, the message transmitting means does not satisfy the predetermined condition for the terminal information (for example, the terminal information does not include information necessary for permitting connection to the network, or the terminal information is valid). If it is determined that the information is not information transmitted from the communication terminal, the message is transmitted to the communication terminal. This message is a message for asking the user whether or not to request transmission of a communication program to be described later. This message is displayed on the communication terminal. When receiving from the communication terminal an answer requesting that the program be transmitted, the program transmitting means transmits the communication program to the communication terminal. When this program is executed in the communication terminal, identification information is acquired, terminal information is generated from the identification information, and the terminal information is transmitted to the communication control device. That is, by executing this program, terminal information that is information necessary for the communication terminal to connect to the network is generated and transmitted from the communication terminal to the communication control apparatus. Therefore, the determination means satisfies the predetermined conditions for the terminal information and the determination information (for example, the difference between the transmission time of the terminal information and the reception time of the determination information is within a predetermined range, or The MAC address of the terminal information is the same as the MAC address of the determination information, and this terminal information is determined to be transmitted from a valid communication terminal). Thereby, the communication control apparatus can connect a communication terminal to a network.

  In the communication control apparatus according to the fifth invention, in addition to the configuration of the fourth invention, the message transmitting means is that the terminal information lacks information necessary for permitting connection between the communication terminal and the network. And means for transmitting the message to the communication terminal.

  According to the fifth aspect of the present invention, the message transmission means is configured such that when the terminal information lacks information necessary for connection between the communication terminal and the network (for example, information unique to the communication terminal is not included in the terminal information). In this case, a message requesting an answer as to whether or not to request transmission of the communication program is transmitted to the communication terminal. When receiving a reply requesting transmission of the communication program, the transmission means transmits the program to the communication terminal. When the program is executed in the communication terminal, terminal information necessary for connection to the network is transmitted from the communication terminal. When the determination information is generated based on the terminal information, connection of the communication terminal to the network is permitted. As a result, the communication control apparatus can connect the communication terminal to the network.

  In addition to the configuration of any one of the first to fifth inventions, the communication control device according to the sixth invention provides an erasure for erasing the terminal information stored in the storage means when a predetermined time limit has elapsed. Means are further included.

  According to the sixth invention, the erasing means erases the terminal information stored in the storage means when a predetermined time limit (for example, the expiration date of the terminal information) elapses. Therefore, for example, information on communication terminals that are not connected to the network is deleted. Thereby, the information to be stored by the storage means does not increase, and the storage means can be used effectively. In addition, since the possibility that information is illegally leaked is reduced, it is possible to prevent anxiety about leakage of terminal information among users. As a result, the communication control device can efficiently provide a connection of the communication terminal to the network.

  A communication terminal according to a seventh aspect of the invention is connected to a communication line and is connected to the receiving means for receiving information from the communication control device, to the receiving means and for storing information, and to the storing means. A display unit for displaying information, a first acquisition unit for acquiring identification information unique to the communication terminal, and a process executed by the communication terminal when the identification information is acquired. Second acquisition means for acquiring unique information uniquely determined, and generation means connected to the first acquisition means and the second acquisition means for generating terminal information based on the identification information and the specific information And transmitting means for transmitting information to the communication control device every predetermined time while being connected to the generating means and satisfying a predetermined condition.

  According to the seventh aspect, the communication terminal communicates with the communication control device that controls connection to the network via the communication line. The receiving means of this communication terminal receives information (eg, message, advertisement information, program, etc.) from the communication control device. The received information is stored in the storage means, and the display means displays the information. The first acquisition unit acquires identification information (for example, a serial number, a MAC address, etc.) unique to the communication terminal. The second acquisition means acquires unique information (for example, identification information acquisition time, terminal information transmission time, etc.) that is unique to the processing executed by the communication terminal and is uniquely determined when the identification information is acquired. . The generation means generates terminal information necessary for the communication control device to determine whether to permit connection to the network, using the identification information and the unique information. The transmission means is set at predetermined time intervals while a predetermined condition is satisfied (for example, while specific information is displayed on the display means or a specific program is being executed). Terminal information is transmitted to the communication control device. When the communication control device permits connection between the communication terminal and the network based on the terminal information, the connection between the communication terminal and the network is established. In this way, the communication terminal can be connected to the network by transmitting the terminal information to the communication control device every predetermined time. As a result, it is possible to provide a communication terminal that allows an unspecified communication terminal to connect to a network via a communication control device.

  In addition to the configuration of the seventh aspect, the communication terminal according to the eighth aspect of the invention further includes a time measuring means for detecting time. The second acquisition unit includes a unit for acquiring the time when the identification information is acquired as unique information.

  According to the eighth invention, the communication control apparatus with which the communication terminal communicates controls the connection of the communication terminal to the network based on the time when the terminal information is received. The time measuring means detects the time at the communication terminal. The second acquisition unit acquires the time when the identification information is acquired as the unique information. Therefore, the terminal information includes the time when the identification information is acquired. When this terminal information is transmitted to the communication control device, it is determined whether or not to permit connection between the communication terminal and the network. As a result of the determination, if the connection with the network is permitted, the communication terminal can connect to the network via the communication providing apparatus. Thereby, the communication terminal can use the connection service to the network.

  In addition to the configuration of the eighth invention, the communication terminal according to the ninth invention further includes detection means for detecting a state in which information is displayed on the display means. The transmission means includes terminal information transmission means for transmitting terminal information to the communication control apparatus at predetermined time intervals while the state in which the information is displayed satisfies a predetermined condition.

  According to the ninth invention, the detecting means is in a state in which the information is displayed on the display means (for example, whether or not the information is displayed, how it is displayed, and how much information is displayed. Etc.). The terminal information transmission means is predetermined while the state in which the information is displayed satisfies a predetermined condition (for example, while information is displayed in at least 50% of the area of the display means). The terminal information is transmitted to the communication control device every time. While the terminal information is transmitted to the communication control device, the communication terminal can connect to the network via the communication control device.

  In the communication terminal according to the tenth invention, in addition to the structure of the ninth invention, the display means includes means for displaying two or more display areas. The detection means includes means for detecting whether information is displayed in a display area displayed on the forefront of the display means. The terminal information transmission means includes means for transmitting the terminal information to the communication control device at predetermined time intervals while the information is displayed on the forefront of the display means.

  According to the tenth invention, the display means of the communication terminal displays two or more display areas. The detection means detects whether or not a display area displaying information (for example, an advertisement) is displayed on the forefront of the display means (that is, whether or not the display area is covered with another display area). The terminal information transmission unit transmits the terminal information to the communication control device at predetermined time intervals while the display area is shown on the forefront of the display unit. Thus, the communication terminal can connect to the network while the display area displaying information is displayed on the forefront of the display means.

  A communication control method according to an eleventh aspect includes a reception step of receiving information from a communication terminal, a storage step of storing terminal information included in the information, and a confirmation for confirming whether the terminal information is legitimate information Step, an extraction step for extracting identification information unique to the communication terminal based on the terminal information, and information unique to the processing by the communication control method, which is uniquely determined when the terminal information is received An acquisition step; a generation step for generating determination information based on the identification information and the unique information; a determination step for determining whether the terminal information and the determination information satisfy a predetermined condition; When it is determined that the determination information satisfies a predetermined condition, a permission step for permitting connection between the communication terminal and the network for a predetermined time is included.

  According to the eleventh aspect, the communication control method communicates information with a communication terminal via a communication line, and controls connection of the communication terminal to the network. The information includes terminal information of the communication terminal. The reception step of this communication control method receives information from the communication terminal. The storing step stores terminal information included in the received information. In the confirmation step, it is confirmed whether or not the terminal information is valid information. Based on the fact that the terminal information is legitimate information, the extraction step extracts identification information (for example, a MAC address) unique to the communication terminal from the terminal information. The acquisition step is information specific to the process of the communication control method, and acquires unique information (for example, reception time of the terminal information, information processing time, etc.) that is uniquely determined when the terminal information is received. The generation step generates determination information based on such identification information and unique information. In the determination step, the determination information and the terminal information satisfy a predetermined condition (for example, the determination information and the terminal information include a common encryption key, or the determination information and the terminal information are generated at substantially the same time. Or the like). When it is determined that the determination information and the terminal information satisfy a predetermined condition, the permission step permits the connection between the communication terminal and the network (for example, the Internet, an intranet, etc.) for a predetermined time. When the connection is permitted, the connection between the communication terminal and the network is established. Thereby, the communication control method can connect an unspecified communication terminal to a network. As a result, a communication control method that can connect an unspecified communication terminal to the network can be provided.

  According to a twelfth aspect of the present invention, a communication method according to a twelfth aspect includes a reception step of receiving information from a communication control device, a storage step of storing information, a display step of displaying information, and identification information specific to the communication method. Terminal information based on the identification information and the unique information, the second obtaining step that is unique to the processing performed by the communication method and that is unique when the identification information is obtained; And a transmission step of transmitting information to the communication control device every predetermined time while satisfying a predetermined condition.

  According to the twelfth invention, a communication method communicates with a communication control device that controls connection to a network via a communication line. The receiving step of this communication method receives information (for example, message, advertisement information, program, etc.) from the communication control device. The received information is stored in the storage step, and the display step displays the information. The first acquisition step acquires identification information (for example, a serial number, a MAC address, etc.) that is unique to the communication method. The second acquisition step is specific to the process executed by the communication method, and acquires unique information (for example, identification information acquisition time, terminal information transmission time, etc.) that is uniquely determined when the identification information is acquired. . In the generation step, terminal information necessary for the communication control device to determine whether or not to permit connection to the network is generated using the identification information and the unique information. The transmission step is performed at predetermined time intervals while a predetermined condition is satisfied (for example, while specific information is displayed in the display step or a specific program is executed). Terminal information is transmitted to the communication control device. When the communication control device permits connection between the communication method and the network based on the terminal information, the connection between the communication method and the network is established. Thereby, the communication method can connect to a network by transmitting terminal information to the communication control device at predetermined time intervals. As a result, it is possible to provide a communication method that allows an unspecified user to connect to a network via a communication control device.

  A program according to a thirteenth invention comprises: a reception step for receiving information from a communication terminal; a storage step for storing information; a confirmation step for confirming whether the terminal information is legitimate information; An extraction step of extracting identification information unique to the communication terminal based on the information; an acquisition step of acquiring unique information that is unique to the processing by the communication control method and is uniquely determined when the terminal information is received; Based on the identification information and the unique information, a generation step for generating the determination information, a determination step for determining whether the terminal information and the determination information satisfy a predetermined condition, and the terminal information and the determination information If it is determined that a predetermined condition is satisfied, a permission step for permitting connection between the communication terminal and the network is realized for a predetermined time.

  According to the thirteenth invention, this program causes a computer to realize a communication control method for communicating information with a communication terminal via a communication line and controlling connection of the communication terminal to the network. The information includes terminal information of the communication terminal. The reception step of this communication control method receives information from the communication terminal. The storing step stores the received information. In the confirmation step, it is confirmed whether or not the terminal information is valid information. Based on the fact that the terminal information is legitimate information, the extraction step extracts identification information (for example, a MAC address) unique to the communication terminal from the terminal information. The acquisition step is information specific to the process of the communication control method, and acquires unique information (for example, reception time of the terminal information, information processing time, etc.) that is uniquely determined when the terminal information is received. The generation step generates determination information based on such identification information and unique information. In the determination step, the determination information and the terminal information satisfy a predetermined condition (for example, the determination information and the terminal information include a common encryption key, or the determination information and the terminal information are generated at substantially the same time. Or the like). When it is determined that the determination information and the terminal information satisfy a predetermined condition, the permission step permits the connection between the communication terminal and the network (for example, the Internet, an intranet, etc.) for a predetermined time. When the connection is permitted, the connection between the communication terminal and the network is established. Thereby, the communication control method can connect an unspecified communication terminal to a network. As a result, it is possible to provide a program that realizes a communication control method capable of connecting an unspecified communication terminal to a network.

  A program according to a fourteenth aspect of the present invention obtains identification information unique to a communication method, a reception step of receiving information from a communication control device, a storage step of storing information, a display step of displaying information, and a computer. Based on the first acquisition step, the second acquisition step that is specific to the process executed by the communication method and that is unique when the identification information is acquired, and the identification information and the specific information. A generation step of generating terminal information and a transmission step of transmitting information to the communication control device at predetermined intervals while satisfying predetermined conditions are realized.

  According to the fourteenth aspect, this program causes a computer to implement a communication method for communicating with a communication control device that provides a network connection service via a communication line. The receiving step of this communication method receives information (for example, message, advertisement information, program, etc.) from the communication control device. The received information is stored in the storage step, and the display step displays the stored information. The first acquisition step acquires identification information (for example, a serial number, a MAC address, etc.) unique to the communication terminal using the communication method. The second acquisition step is specific to the processing executed by the communication method, and acquires unique information (for example, identification information acquisition time, terminal information generation time, etc.) that is uniquely determined when the identification information is acquired. . In the generation step, terminal information necessary for the communication control device to determine whether or not to permit connection to the network is generated using the identification information and the unique information. The transmission step is performed at predetermined time intervals while a predetermined condition is satisfied (for example, while specific information is displayed in the display step or a specific program is executed). The generated terminal information is transmitted to the communication control device. Based on this terminal information, connection to the network via the communication control device is permitted. Thereby, the connection service to the network can be used without registering in advance as a user of the connection service. As a result, it is possible to provide a program that realizes a communication method that allows an unspecified user to use a network connection service via a communication control device.

  A recording medium according to a fifteenth aspect of the invention is a recording medium that records a program according to the thirteenth aspect or the fourteenth aspect of the invention.

  According to the fifteenth invention, the recording medium communicates information with a communication terminal connected via a communication line, and provides a service to an unregistered communication terminal as a user of the service connecting the communication terminal to the network. One of the program that realizes the communication control method and the program that realizes the communication method that communicates with the communication control device that provides the connection service to the network via the communication line is recorded. Using these programs, the computer can realize either the communication control method or the communication method.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  FIG. 1 shows a communication network formed by communication server 200 and communication terminal 300 according to the embodiment of the present invention. The communication server 200 is installed in the hot spot service area 100 and is connected to the Internet 102 via a network communication I / F (Interface) 210. The Internet 102 connects a communication server 200, a WWW (World Wide Web) server 104, and an advertisement server 106. Communication server 200 is connected to communication terminal 300 via terminal communication I / F 206.

  FIG. 2 is a control block diagram of a computer system 2000 that is an example of the communication server 200 according to the embodiment of the present invention. Referring to FIG. 2, this computer system 2000 includes a communication server 200 including an FD (Flexible Disk) driving device 218 and a CD-ROM (Compact Disc-Read Only Memory) driving device 220, a monitor 208, and a keyboard 214. And a mouse 212.

  Further, in addition to the above-described FD drive device 218 and CD-ROM drive device 220, the communication server 200 includes a CPU (Central Processing Unit) 202, a memory 216, a fixed disk 204, and a mutually connected bus. A terminal communication I / F 206 and a network communication I / F 210 are included. The FD 222 is attached to the FD driving device 218. A CD-ROM 224 is attached to the CD-ROM drive 220.

  The processing in the communication server 200 is realized by computer hardware and software executed by the CPU 202. Generally, such software is stored and distributed in a recording medium such as the FD 222 and the CD-ROM 224, read from the recording medium by the FD driving device 218 or the CD-ROM driving device 220, and temporarily stored in the fixed disk 204. Is done. The software is read from the fixed disk 204 to the memory 216 and executed by the CPU 202. The computer hardware itself shown in FIG. 2 is general. Therefore, the most essential part of the present invention is software recorded on a recording medium such as the FD 222, the CD-ROM 224, and the fixed disk 204.

  The CPU 202 of the communication server 200 receives information (for example, advertisement, browsing information, etc.) from the advertisement server and WWW server connected to the network via the network communication I / F 210 and stores them in the fixed disk 204.

  The CPU 202 acquires terminal information from the communication terminal information received via the terminal communication I / F 206 and stores it in the fixed disk 204. The CPU 202 transmits data such as a message, a communication program, and advertisement data to the communication terminal 300 via the terminal communication I / F 206.

  CPU 202 controls connection between the communication terminal and the Internet via terminal communication I / F 206 and network communication I / F 210. That is, when the CPU 202 permits the connection, the connection between the communication terminal 300 and the Internet 102 is established.

  FIG. 3 shows a control block diagram of a computer which is an example of communication terminal 300 according to the embodiment of the present invention. As shown in FIG. 3, the communication terminal 300 includes a monitor 308, a keyboard 314, a mouse 312, an FD driving device 318, a CD-ROM driving device 320, a CPU 302 connected to each other via a bus, and a memory 316. And a fixed disk 304 and a communication I / F 306. An FD 322 is attached to the FD driving device 318. A CD-ROM 324 is attached to the CD-ROM driving device 320. The input device in the communication terminal 300 is not limited to the above. For example, if the communication terminal 300 is a small portable terminal, an input pen or the like may be used instead of the keyboard. The drive device for the readable recording medium is not limited to the above, and may be a drive device that can read a memory card, a memory stick, or the like, for example.

  The processing in the communication terminal 300 is realized by computer hardware and software executed by the CPU 302. This software is therefore the most essential part of the present invention.

  CPU 302 acquires the MAC address and information processing time of communication terminal 300. The MAC address is attached to a NIC (Network Interface Card) incorporated in the information device, and the information device can be identified by this address. The information processing time is acquired from an internal clock when the CPU 302 executes processing.

  The CPU 302 encrypts data including the key character string, the MAC address, and the transmission date and time to generate a passphrase. The encryption method includes, for example, the MD5 algorithm, but is not particularly limited to this method.

  The CPU 302 generates terminal information using the MAC address and the generated passphrase. The CPU 302 transmits the generated terminal information to the communication server 200 via the communication I / F 306.

  CPU 302 writes information received from communication server 200 via communication I / F 306 to fixed disk 304. This information includes a message related to the use of the hot spot service, a program necessary for receiving the service, advertiser data, information that the user of the terminal desires to browse, and the like.

  The CPU 302 detects how information is displayed on the monitor 308. This information includes information desired to be browsed and advertisement data. When the monitor 308 can display two or more areas (when it has a so-called multi-window function), the CPU 302 detects what information is displayed in the foreground area.

  FIG. 4 shows the structure of a packet communicated in hot spot service area 100 according to the embodiment of the present invention. This packet includes a first area 402, a second area 404, a third area 406, a fourth area 408, a fifth area 410, and a sixth area 412.

  A preamble is stored in the first area 402. The second area 404 stores the destination MAC address (that is, the MAC address of the communication server 200). The third area 406 stores a transmission source MAC address (that is, the MAC address of the communication terminal 300). The fourth area 408 stores the frame type. Frame data is stored in the fifth area 410. This frame data is terminal information generated in the communication terminal 300. The sixth area 412 stores CRC (Cyclic Redundancy Check) data. The CRC data is used to detect an error that occurs during communication.

  FIG. 5 shows the structure of a passphrase generated by communication terminal 300 and communication server 200. FIG. 5A shows a passphrase generated in communication terminal 300. FIG. 5B shows a pass phrase generated in the communication server 200.

  Referring to FIG. 5A, this data includes a first area 502, a second area 504, and a third area 506. The first area 502 stores a predetermined key character string. In the second area 504, the MAC address of the communication terminal 300 is stored. The third area 506 stores the date and time when this passphrase transmission process is executed.

  Referring to FIG. 5B, this data includes a first region 512, a second region 514, and a third region 516. The first area 512 stores a predetermined key character string. In the second area 514, the MAC address of the communication terminal 300 is stored. This MAC address is acquired from the terminal information received by the communication server 200. The third area 516 stores the date and time when this terminal information is received.

  The data structure in FIG. 5A is the same as the data structure in FIG. Therefore, if the encryption process in the communication terminal 300 and the encryption process in the communication server 200 are the same, the passphrase generated by each encryption process also has the same structure. Thereby, the data generated in the communication terminal 300 and the data generated in the communication server 200 can be compared.

  FIG. 6 shows a data structure of terminal information stored in communication server 200. This data includes a first area 602 and a second area 604. The first area 602 stores the MAC address of the communication terminal. In the second area 604, the date and time of the expiration date of each communication terminal is stored. This expiration date is calculated when the communication server 200 receives terminal information. That is, the expiration date is calculated by adding a preset time for allowing connection (hereinafter referred to as T (3)) to the reception time of the terminal information.

  In this figure, for example, the information of the communication terminal whose MAC address is “A8: 00: 4f: 20: 3f: 0” indicates that it is valid until 15:34:20 on June 28, 2002. That is, this communication terminal can be connected to the network until 15:34:20 on June 28, 2002.

  FIG. 7 shows a message transmitted from the communication server 200 displayed on the monitor 308. In this figure, a message 702 is a message regarding preparations necessary for using the hotspot service. The message 704 indicates that the communication program needs to be executed in order to use the connection service to the network.

  The message 706 is a message for the user of the communication terminal 300 to notify a request for transmission of the communication program. When the user selects this message using, for example, a pointer or an input pen shown on the monitor 308, a communication program is transmitted from the communication server 200 to the communication terminal 300.

  The message 708 is a message for requesting connection to the Internet again. That is, when the communication program is downloaded, the advertisement is displayed on the monitor 308. Then, a predetermined process (terminal information transmission process) is executed. Thereafter, the communication terminal 300 can connect to the Internet via the communication server 200.

  FIG. 8 shows a state where information 802 and advertisement 804 that the user of the communication terminal 300 desires to view are displayed on the monitor 308. As shown in this figure, when the advertisement 804 is displayed on the forefront of the monitor 308, information 802 is displayed. That is, while the advertisement 804 is displayed, the communication terminal 300 can connect to the communication server 200 and use the Internet connection service.

  The advertisement display is not limited to this method. For example, the advertisement screen may be hidden after the user selects the advertisement screen and refers to detailed information. Thereby, the advertiser can confirm that the user browsed the detailed information of the advertisement. On the other hand, the user can concentrate on browsing the information 702 after browsing the detailed information of the advertisement 704.

  FIG. 9 illustrates a processing procedure when the communication server 200 according to the embodiment of the present invention provides a connection service to the Internet 102 to the communication terminal 300 using a flowchart.

  In step (hereinafter, step is abbreviated as S) 102, CPU 202 of communication server 200 receives a connection request from communication terminal 300.

  In S104, CPU 202 determines whether or not the terminal information of communication terminal 300 is registered. If it is determined that the terminal information of communication terminal 300 is registered (YES in S104), the process proceeds to S200. Otherwise (NO in S104), the process proceeds to S106.

  In S <b> 106, CPU 202 transmits a message to communication terminal 300. These messages are message 702, message 704, and message 706.

  In S108, CPU 202 determines whether a communication program transmission request has been received from communication terminal 300 or not. If it is determined that a communication program transmission request has been received from communication terminal 300 (YES in S108), the process proceeds to S110. Otherwise (NO in S108), the process proceeds to S126.

  In S110, CPU 202 transmits the communication program to communication terminal 300. In S200, CPU 202 executes terminal authentication processing to be described later. By executing this terminal authentication process, a flag indicating whether the terminal information received from the communication terminal 300 is valid information is specified. Based on this flag, the connection condition is determined.

  In S114, CPU 202 determines whether or not the terminal information satisfies the connection condition. If it is determined that the terminal information satisfies the connection conditions (YES in S114), the process proceeds to S116. Otherwise (NO in S114), the process proceeds to S126.

  In S116, CPU 202 calculates the expiration date of the received terminal information, and stores the MAC address and expiration date of the terminal in fixed disk 204. This expiration date is the time obtained by adding the time for allowing connection (that is, T (3)) to the reception time of the terminal information. This T (3) is preset in the communication server 200.

  In S118, CPU 202 establishes connection between communication terminal 300 and Internet 102 via terminal communication I / F 206 and network communication I / F 210. As a result, communication between the communication terminal 300 and the Internet 102 becomes possible.

  In S120, CPU 202 determines whether time T (2) has elapsed since the validity of the stored terminal information has been confirmed. This time T (2) is a predetermined time and is an interval at which the CPU 202 confirms the validity of the terminal information of the communication terminal 300. If it is determined that time T (2) has elapsed since the validity of the stored terminal information has been confirmed (YES in S120), the process proceeds to S200. Otherwise (NO in S120), the process proceeds to S122.

  In S122, CPU 202 determines whether or not a condition for terminating the connection between communication terminal 300 and Internet 102 is satisfied. This condition is, for example, whether a connection end signal has been received from the communication terminal 300 or whether transmission of information from the communication terminal 300 has ended. If it is determined that the connection termination condition is satisfied (YES in S122), the process proceeds to S124. Otherwise (NO in S122), the process proceeds to S120.

  In S124, CPU 202 ends the connection between communication terminal 300 and the Internet. That is, communication of information including the MAC address of communication terminal 300 is prohibited in communication terminal I / F 206 and network communication I / F 210. Thereafter, when a predetermined time elapses, the CPU 202 deletes the terminal information of the communication terminal 300 stored in the fixed disk 204.

  In S126, CPU 202 rejects connection between communication terminal 300 and Internet 102. For example, CPU 202 transmits a message notifying that connection is not permitted to communication terminal 300. Thereafter, the CPU 202 ends communication with the communication terminal 300.

  With reference to FIG. 10, the procedure of the terminal authentication process which the communication server 200 performs is demonstrated using a flowchart. This process is executed when the communication server 200 receives information from the communication terminal 300. Therefore, for example, when the communication terminal 300 transmits terminal information to the communication server 200 every time T (1), the terminal authentication process is also executed every time T (1).

  In S202, CPU 202 receives terminal information from communication terminal 300. In S204, CPU 202 acquires the MAC address of communication terminal 300 from the terminal information. This MAC address is stored in the third area 406.

  In S206, CPU 202 generates determination information. This determination information includes a predetermined key character string, the acquired MAC address, and the reception time of the terminal information.

  In S208, CPU 202 encrypts the generated determination information to generate a passphrase (A).

  In S210, CPU 202 obtains a passphrase (B) from the received terminal information. This passphrase (B) is stored as frame data in the fifth area 410. The content of the data included in this passphrase (B) is the same as that of the passphrase (A).

  In S212, CPU 202 determines whether or not passphrase (A) and passphrase (B) are the same. If it is determined that passphrase (A) and passphrase (B) are the same (YES in S212), the process proceeds to S214. Otherwise (NO in S212), the process proceeds to S216.

  In S214, CPU 202 returns a flag (eg, “0”) indicating that passphrase (A) and passphrase (B) match. Thereafter, the process returns to the process that called the terminal authentication process.

  In S216, CPU 202 returns a flag (eg, “1”) indicating that passphrase (A) and passphrase (B) do not match. Thereafter, the process returns to the process that called the terminal authentication process.

  With reference to FIG. 11, a processing procedure when communication terminal 300 according to the embodiment of the present invention connects to Internet 102 via communication server 200 will be described using a flowchart.

  In S <b> 302, CPU 302 of communication terminal 300 transmits a connection request to Internet 102 to communication server 200.

  In S304, CPU 302 determines whether or not the communication program has been registered. If it is determined that the communication program has been registered (YES in S304), the process proceeds to S400. Otherwise (NO in S304), the process proceeds to S306.

  In S306, CPU 302 receives the message from communication server 200 and displays it on monitor 308. These messages are a message 702, a message 702, and a message 706.

  In S308, CPU 302 detects whether a transmission request for the communication program has been transmitted. If it is detected that a communication program transmission request has been transmitted (YES in S308), the process proceeds to S310. Otherwise (NO in S308), the process proceeds to S326.

  In S310, CPU 302 receives a communication program from communication server 200. This program is ready to be executed in the communication terminal 300.

  In S400, CPU 302 executes a terminal information transmission process to be described later. When this process is executed, information unique to the communication terminal 300, predetermined information, and the like are periodically transmitted to the communication server 200 as terminal information.

  In S314, CPU 302 determines whether or not connection permission to Internet 102 has been received from communication server 200. If it is determined that connection permission from communication server 200 to Internet 102 has been received (YES in S314), the process proceeds to S316. Otherwise (NO in S314), the process proceeds to S326.

  In S316, CPU 302 displays advertisement 804 received from communication server 200 on monitor 308. That is, when the terminal information is transmitted by the communication program, a connection with the Internet 102 is established. The advertisement 804 is transmitted from the communication server 200 by starting communication with the Internet 102.

  In S318, CPU 302 receives information 802 that the user requests to browse and displays it on monitor 308. This information is executed by, for example, a display program called a WEB browser.

  In S320, CPU 302 determines whether or not time T (1) has elapsed since the terminal information was transmitted. This time T (1) is an interval at which the terminal information is transmitted to the communication server 200. If it is determined that time T (1) has elapsed since the terminal information was transmitted (YES in S320), the process proceeds to S400. Otherwise (NO in S320), the process proceeds to S322.

  In step S322, the CPU 302 determines whether a connection termination request from the user has been detected. If it is determined that a connection termination request by the user has been detected (YES in S322), the process proceeds to S324. Otherwise (NO in S322), the process proceeds to S320.

  In S324, CPU 302 ends communication with communication server 200. That is, the communication program ends the process. Thereby, transmission of terminal information stops.

  In S326, CPU 302 receives a connection request rejection notification from communication server 200. Thereafter, the process ends.

  With reference to FIG. 12, the procedure of processing when communication terminal 300 transmits terminal information will be described using a flowchart.

  In S <b> 402, CPU 302 acquires the MAC address of communication terminal 300. In S404, CPU 302 acquires time information from the communication terminal. This time information is, for example, the time when this terminal information transmission process is executed.

  In S406, CPU 302 encrypts the MAC address and time information to generate a passphrase. In S408, CPU 302 generates terminal information. As shown in FIG. 4, the generated passphrase is stored in the fifth area 410.

  In S410, CPU 302 transmits the generated terminal information to communication server 200. The terminal information transmission interval is T (1).

  An operation of the information processing apparatus according to the embodiment of the present invention based on the structure and flowchart as described above will be described. An operation in which the user of the communication terminal 300 connects to the communication server 200 and connects to the Internet in the hot spot service area 100 will be described.

  When the user of the communication terminal 300 transmits a connection request (S302), the communication server 200 receives the connection request (S102). When it is determined that the terminal information of communication terminal 300 is not registered in communication server 200 (NO in S104), it is indicated that “Internet connection at a hot spot requires execution of a communication program”. The message indicating “download communication program to terminal” is transmitted from communication server 200 to communication terminal 300 (S306).

  When the user of communication terminal 300 transmits a transmission request for the communication program (YES in S308), communication server 200 receives the request (YES in S108) and transmits the communication program to communication terminal 300 (S110). ). When the communication program is executed in the communication terminal 300 (S310), terminal information is generated and transmitted to the communication server 200 (S400).

  When the terminal information authentication process is executed in communication server 200 (S200) and it is determined that the terminal information satisfies the connection condition (YES in S114), the terminal information of communication terminal 300 and the calculated expiration date are calculated. Are stored (S116).

  After that, a message 708 “Please connect to the Internet again after the advertisement is displayed” is displayed on the monitor 308 (YES in S314). When the user executes the connection process again, the connection to the Internet 102 is established. Establish (S118). Thereafter, the advertisement 804 is displayed on the monitor 308 (S316), and information 802 requested by the user is further displayed on the monitor 308 (S318).

  When predetermined time T (2) has elapsed (YES in S120), the terminal authentication process is executed again (S200). When predetermined time T (1) has elapsed (YES in S320), the terminal information transmission process is executed again (S400).

  If a connection termination request is detected in communication terminal 300 (NO in S322) before time T (1) has elapsed (NO in S320), communication with communication server 200 ends (S324). When the transmission of the terminal information ends, it is determined that the connection end condition is satisfied (YES in S122).

  Thereafter, in the communication server 200, the connection between the communication terminal 300 and the Internet 102 is released (S124). Thereafter, the information of the communication terminal 300 stored in the communication server 200 is deleted.

  As described above, a communication terminal that is not registered in advance as a user can be connected to the network while the information transmitted by the terminal is valid. As a result, it is possible to provide a communication control apparatus that can provide a network connection service to users of unspecified communication terminals and a communication terminal that can use the connection service.

  In the above-described embodiment, when “time T (2) + time T (3)” elapses at the latest after the communication is completed, the information of the terminal that has completed the communication is deleted. That is, the information on the communication terminal is deleted when a predetermined time elapses. Thereby, the increase in the information of the communication terminal which is not using the connection service to a network can be suppressed.

  The description of this embodiment is based on the premise that the time of the communication server and the time of the communication terminal are already synchronized. When the time of the communication server and the time of the communication terminal are not synchronized, they can be synchronized at the start of connection. For example, when the communication terminal is connected to the communication server by NTP (Network Time Protocol), the time of the communication terminal can be matched with the time of the communication server. Thereby, the time in a communication terminal and the time in a communication server correspond. Therefore, if the terminal information is information generated in the communication terminal, the time included in the information matches the time included in the information generated in the communication server.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a figure showing the communication control apparatus and communication terminal in the hot spot service area which concern on embodiment of this invention. It is a control block diagram of the communication server which concerns on embodiment of this invention. It is a control block diagram of the communication terminal which concerns on embodiment of this invention. It is a figure showing the structure of the data which the communication terminal which concerns on embodiment of this invention transmits. It is a figure showing the structure of the data produced | generated in the communication terminal and communication server which concern on embodiment of this invention. It is a figure showing the data structure of the terminal information which the communication server which concerns on embodiment of this invention memorize | stores. It is a figure showing the message displayed on the communication terminal which concerns on embodiment of this invention. It is a figure showing the advertisement and browsing information which are displayed on the communication terminal which concerns on embodiment of this invention. It is a flowchart (the 1) showing the procedure of the process performed with the communication server which concerns on embodiment of this invention. It is a flowchart (the 2) showing the procedure of the process performed with the communication server which concerns on embodiment of this invention. It is a flowchart (the 1) showing the procedure of the process performed with the communication terminal which concerns on embodiment of this invention. It is a flowchart (the 2) showing the procedure of the process performed with the communication terminal which concerns on embodiment of this invention.

Explanation of symbols

  100 hot spot service area, 102 Internet, 104 WWW server, 106 advertising server, 200 communication server, 300 communication terminal, 202, 302 CPU, 204, 304 fixed disk device, 206 terminal communication I / F, 210 network communication I / F 306 Communication I / F, 308 Monitor, 402, 502, 602 First area, 404, 504, 604 Second area, 406, 506, 516 Third area, 408 Fourth area, 410 5th Region 412 The sixth region.

Claims (15)

A communication control device that communicates information with a communication terminal via a communication line and controls connection of the communication terminal to a network, wherein the information includes terminal information of the communication terminal, and the communication control device includes:
A receiving means connected to the communication line for receiving information information from the communication terminal;
Storage means connected to the receiving means for storing terminal information included in the information;
Confirmation means connected to the storage means for confirming whether the terminal information is valid information;
An extraction means connected to the storage means for extracting identification information unique to the communication terminal based on the terminal information;
An acquisition means for acquiring unique information that is unique to processing by the communication control device and is uniquely determined when the terminal information is received;
A generating unit connected to the extracting unit and the acquiring unit, for generating determination information based on the identification information and the unique information;
A determination means connected to the generation means for determining whether the terminal information and the determination information satisfy a predetermined condition;
When it is determined that the terminal information and the determination information satisfy the predetermined condition when connected to the determination means, the connection between the communication terminal and the network is permitted for a predetermined time. A communication control device including a permission unit. The terminal information includes a transmission time when the communication terminal transmits the information to the communication control device,
The communication control device further includes a time measuring means for measuring time,
The acquisition means includes means for acquiring the reception time when the terminal information is received as the specific information,
The determination means includes means for determining whether a difference between the transmission time and the reception time is within a predetermined range,
The permission means includes means for permitting the connection for the predetermined time when it is determined that a difference between the transmission time and the reception time is within the predetermined range. Item 4. The communication control device according to Item 1. The communication control device includes:
When the connection is permitted, a calculation means for calculating an expiration date of the terminal information;
An expiration date storage means for storing the terminal information and the expiration date in association with each other;
Information determining means for determining whether or not the terminal information is invalid based on the expiration date for each predetermined time;
The communication control device according to claim 2, further comprising: a release unit configured to release the connection between the communication terminal and the network when it is determined that the terminal information is invalid. The communication control device includes:
A message transmission means for transmitting a message to the communication terminal based on a result of the determination by the determination means;
Program transmission means for transmitting the communication program to the communication terminal based on the received information;
The message is a message that is displayed on the communication terminal and asks for an answer as to whether or not to request transmission of a communication program from a user of the communication terminal;
When the communication program is executed in the communication terminal, the identification information is acquired, the terminal information is generated from the identification information, and the terminal information is transmitted to the communication control device. The communication control apparatus in any one.   The message transmission means includes means for transmitting the message to the communication terminal based on the fact that the terminal information lacks information necessary for permitting a connection between the communication terminal and the network. The communication control device according to claim 4, further comprising:   The communication control apparatus according to claim 1, further comprising an erasing unit for erasing terminal information stored in the storage unit when a predetermined time limit elapses. . A communication terminal that communicates with a communication control device that controls connection to a network via a communication line,
A receiving means connected to the communication line for receiving information from the communication control device;
Storage means connected to the receiving means for storing the information;
Display means connected to the storage means for displaying the information;
First acquisition means for acquiring identification information unique to the communication terminal;
A second acquisition unit that is connected to the first acquisition unit and is specific to a process executed by the communication terminal, and for acquiring unique information that is uniquely determined when the identification information is acquired;
Generating means connected to the first acquisition means and the second acquisition means for generating terminal information based on the identification information and the unique information;
A communication terminal, comprising: a transmission unit connected to the generation unit and configured to transmit information to the communication control device at predetermined time intervals while satisfying a predetermined condition. The communication control device controls connection of the communication terminal to the network based on a time when the terminal information is received from the communication terminal.
Further comprising a time measuring means for detecting the time,
The communication terminal according to claim 7, wherein the second acquisition unit includes a unit for acquiring a time when the identification information is acquired as the unique information. The communication terminal further includes a detecting unit connected to the display unit and detecting a state in which the information is displayed on the display unit,
Terminal information for transmitting the terminal information to the communication control device at each predetermined time while the state in which the information is displayed satisfies a predetermined condition; The communication terminal according to claim 8, comprising a transmission means. The display means includes means for displaying two or more display areas;
The detection means includes means for detecting whether or not the information is displayed in a display area displayed on the forefront of the display means,
The terminal information transmitting means includes means for transmitting the terminal information to the communication control device at each predetermined time while the information is displayed on the forefront of the display means. Item 10. The communication terminal according to Item 9. A communication control method for communicating information with a communication terminal via a communication line and controlling connection of the communication terminal to a network, wherein the information includes terminal information of the communication terminal, and the communication control method includes:
Receiving the information from the communication terminal; and
A storage step of storing terminal information included in the information;
A confirmation step for confirming whether the terminal information is valid information;
An extraction step of extracting identification information unique to the communication terminal based on the terminal information;
An acquisition step of acquiring unique information that is unique to processing by the communication control method and is uniquely determined when the terminal information is received;
A generation step of generating determination information based on the identification information and the unique information;
A determination step of determining whether or not the terminal information and the determination information satisfy a predetermined condition;
A communication control method including a permission step for permitting connection between the communication terminal and the network for a predetermined time when it is determined that the terminal information and the determination information satisfy the predetermined condition; . A communication method for communicating via a communication line with a communication control device for controlling connection to a network,
A receiving step of receiving information from the communication control device;
A storage step for storing said information;
A display step for displaying the information;
A first acquisition step of acquiring identification information unique to the communication method;
A second acquisition step that acquires unique information that is unique to the process executed by the communication method and that is uniquely determined when the identification information is acquired;
A generating step of generating terminal information based on the identification information and the unique information;
And a transmission step of transmitting information to the communication control device every predetermined time while satisfying a predetermined condition. A program for causing a computer to implement a communication control method for communicating information with a communication terminal via a communication line and controlling connection of the communication terminal to the network, wherein the information includes terminal information of the communication terminal, The program is stored in the computer.
Receiving the information from the communication terminal; and
A storage step for storing said information;
A confirmation step for confirming whether the terminal information is valid information;
An extraction step of extracting identification information unique to the communication terminal based on the terminal information;
An acquisition step of acquiring unique information that is unique to processing by the communication control method and is uniquely determined when the terminal information is received;
A generation step of generating determination information based on the identification information and the unique information;
A determination step of determining whether or not the terminal information and the determination information satisfy a predetermined condition;
A program that, when it is determined that the terminal information and the determination information satisfy the predetermined condition, realizes a permission step for permitting connection between the communication terminal and the network for a predetermined time. A program for causing a computer to implement a communication method for communicating with a communication control device for controlling connection to a network via a communication line, the program being executed by the computer,
A receiving step of receiving information from the communication control device;
A storage step for storing said information;
A display step for displaying the information;
A first acquisition step of acquiring identification information unique to the communication method;
A second acquisition step that acquires unique information that is unique to the process executed by the communication method and that is uniquely determined when the identification information is acquired;
A generating step of generating terminal information based on the identification information and the unique information;
A program for realizing a transmission step of transmitting information to the communication control device at predetermined time intervals while satisfying predetermined conditions.   The computer-readable recording medium which recorded the program of Claim 13 or 14.

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