JP2010045543A - Data communication system, and data communication method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To detect a plurality of cellular phones locating within a desired geographical range at a time and to enable a data communication without a distance limitation among cellular phones designated in the plurality of cellular phones. <P>SOLUTION: Present locations of cellular phones are in advance registered in a server device 4 on a broad area network 3, and the server device 4 detects each second cellular phone 2 located within a geographical range designated by a user of a first cellular phone 1. The first cellular phone 1 displays present locations of the detected second cellular phones 2 in a list. Thus, the cellular phones locating in a desired geographical range can be detected at a time. Also, if a desired second cellular phone 2 is designated in the list, the first and the second cellular phones 1 and 2 automatically establish a communication connection through the server device 4 to perform data communications. Since the data communications are performed through the broad area network 3, the data communications can be performed without a distance limitation. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention provides data communication between terminal devices such as a mobile phone, a PHS phone (PHS: Personal Handyphone System), a PDA device (PDA: Personal Digital Assistant), a notebook personal computer device, a desktop personal computer device, etc. The present invention relates to a data communication system.
In particular, out of each terminal device located in each geographical range, a terminal device located in the desired geographical range is specified, and data communication is performed with the terminal device located in the desired geographical range. The present invention relates to a data communication system and a data communication method.

  2. Description of the Related Art Conventionally, as a technique related to position detection of a portable terminal device, a position information notification device that provides a searcher with relative position information between a search target person and a searcher is disclosed in Japanese Patent Laid-Open No. 2002-027527 Is disclosed.

  In the case of this location information notification device, the searcher A calls the location information notification device administrator and requests the location information notification of the search target person. The position information notification device administrator specifies the position of the searcher A by the position search method using the mobile phone base station, calculates the direction of the search target viewed from the searcher A, and notifies the searcher A of the calculated direction. The direction transmitted to the searcher A is displayed on the searcher A's mobile device. Searcher B also conducts a search activity at a location different from that of searcher A, calls the location information notification device manager, and obtains the direction of the search target person. Then, the searcher A and the searcher B obtain the intersection of the extension lines of the respective directions. Thereby, the coordinates of the search target person are obtained.

  Japanese Patent Laid-Open No. 2007-087136 (Patent Document 2) discloses a position detection system that can detect the position of a terminal even in a place where GPS radio waves are difficult to reach. This position detection system has a plurality of position posts that transmit post data indicating its own information. The guardian's terminal obtains its own position data by the GPS function, and post data from nearby position posts. And terminal data based on the position data and post data is notified to the server. Thereby, even when position data cannot be obtained, the server can detect the position of the terminal based on the post data. For this reason, it is possible to detect the position of the terminal even in places where GPS radio waves are difficult to reach by arranging the position posts in places where GPS radio waves are difficult to reach.

JP 2002-027527 A JP 2007-087136 A

  However, in the case of the conventional technology related to position detection disclosed in Patent Document 1, Patent Document 2, and the like, the current position of a desired counterpart mobile terminal device can be detected, but a plurality of mobile phones located at a desired location can be detected. There is a problem that it is difficult to perform data communication by detecting a terminal device and further designating a desired mobile terminal device from the plurality of mobile terminal devices.

  In other words, in the case of the conventional technology relating to position detection, the current positions of one person can be detected individually for each user, but it is difficult to detect the current positions of a plurality of users at once. For this reason, there is a problem that it is difficult to perform data communication by designating a desired user from the plurality of users.

  In addition, when data communication is performed by designating the desired user, considering the use of a short-range wireless communication function such as Bluetooth (registered trademark), for example, the communicable distance of this short-range wireless communication function is Since the distance is limited to about 10 meters, a user who can inevitably perform data communication inevitably has a problem that is limited to a user who is located 10 square meters.

  The present invention has been made in view of the above problems, and can detect a plurality of terminal devices located in a desired geographical range at a time, and a plurality of terminal devices located in the desired geographical range. An object of the present invention is to provide a data communication system and a data communication method capable of specifying a desired terminal device from among the above and performing data communication without limitation on distance.

In order to solve the above problems, a data communication system according to the present invention provides:
A terminal device having a communication function as a searcher;
A plurality of portable terminal devices which are terminal devices to be searched, having portability, a current position detection function, a predetermined usable function usable in the terminal device, and a wireless communication function;
A predetermined identifier for identifying each mobile terminal device provided on a wide area network, current position information indicating a current position detected by a current position detection function of each mobile terminal device, and each of the mobile terminal devices A server device comprising a database in which terminal information including communication setting information of each portable terminal device for establishing a communication connection with the terminal device is registered. Have.

Then, the server device designates from the terminal device by referring to the current location information of each mobile terminal device registered in the database when a predetermined geographical range is designated from the terminal device. The mobile terminal devices located in the specified geographical range are detected, and the current location information of the mobile terminal devices, the terminal information of the mobile terminal devices, and the geographical range designated by the terminal device Send map information to the terminal device,
The terminal device displays the map information corresponding to the designated geographical range received from the server device on the display unit, and displays the current position information of each portable terminal device as a list on the map information. To do. Thereby, a plurality of portable terminal devices located in a desired geographical range can be detected at a time.

In addition, when the server device designates a desired mobile terminal device and the available function of the desired mobile terminal device from the terminal device that displays the current position information of each mobile terminal device in a list. Based on the communication setting information included in the terminal information of the designated mobile terminal device registered in the database, the server device is located between the designated mobile terminal device and the terminal device. And establishing a communication connection for the available function via the wide area network,
The terminal device and the designated mobile terminal device perform data communication corresponding to the available functions of the designated mobile terminal device via the communication connection established by the server device. By establishing a communication connection via a wide area network, data communication without a distance limitation is enabled between the terminal device and the designated mobile terminal device.

  The present invention can detect a plurality of mobile terminal devices located in a desired geographical range at a time, and designate a desired mobile terminal device from among the plurality of mobile terminal devices located in the desired geographical range. Thus, data communication can be performed without a distance limitation.

  The present invention can be applied to a data communication system as shown in FIG.

[System configuration]
In this data communication system, a mobile phone serving as a search side detects a plurality of mobile phones located within a desired geographical range or a plurality of mobile phones that meet a desired search condition at a time. Data communication can be performed by designating (selecting) a desired mobile phone from the telephone.

  A first mobile phone 1 shown in FIG. 1 is a mobile phone on the side that detects a plurality of corresponding mobile phones at a time by specifying a desired geographical range and a desired search condition. The second mobile phone 2 is designated as a mobile phone subject to data communication by the first mobile phone 1 from among a plurality of mobile phones existing within the geographical range designated by the first mobile phone 1. Or a mobile phone designated as a mobile phone subject to data communication by the first mobile phone 1 from among a plurality of mobile phones corresponding to the search conditions designated by the first mobile phone 1 ing.

  The data communication system includes a first mobile phone 1 that is a mobile phone on the side that designates a desired geographical range and a desired search condition, and a mobile phone that is searched by the first mobile phone 1. A plurality of second mobile phones 2 are connected to each other via a server device 4 provided on a wide area network 3 such as the Internet and each wireless communication base station 5.

  In this example, the description is made on the assumption that data communication is performed between the mobile phones 1 and 2 described above. However, the terminal device that designates a desired geographical range and a desired search condition needs to have portability. Instead of the first mobile phone 1, a terminal device such as a desktop personal computer device may be used. Instead of the first mobile phone 1, a mobile terminal device such as a PHS phone (PHS: Personal Handyphone System), a PDA device (PDA: Personal Digital Assistant), or a notebook personal computer device may be used.

On the other hand, it is preferable that the terminal device specified as the data communication target has portability. For this reason, as the terminal device specified as the data communication target, in addition to the second mobile phone 2, the PHS phone (PHS: Personal Handyphone System), the PDA device (PDA: Personal Digital Assistant), the notebook type A portable terminal device such as a personal computer device is preferred.

[Configuration of mobile phone]
As shown in FIG. 2, the first and second mobile phones 1 and 2 are connected to the radio base station 5 by voice calls, videophone calls, e-mails, Web data (Web: World Wide Web), image data ( An antenna 11 and a communication circuit 12 for performing wireless communication such as moving images and still images), audio data, a speaker unit 13 for outputting received voices, and a microphone unit 14 for collecting transmitted voices. A display unit 15 for displaying a standby screen, an operation menu, e-mail, images (still images and moving images), and the like.

  Each of the mobile phones 1 and 2 includes an operation unit 16 having a plurality of operation keys such as a cross key, a determination key, and a numeric key, and a light emitting unit 17 (LED for notifying a user of incoming / outgoing calls or the like by light. : A light emitting diode), a camera unit 18 for imaging a desired subject, a vibration unit 19 for notifying a user of incoming / outgoing calls by vibrating the casing of the mobile phone, and a time And a timer 20 for counting.

  In addition, the mobile phone includes a GPS antenna 21 (GPS: Global Positioning System) and a GPS unit 22 that detect the current position of the mobile phone, and a communication program and various applications for performing wireless communication processing via the base station. In addition to the program, it has a memory 23 in which various data handled by these application programs are stored, and a control unit 24 that controls the operation of the entire mobile phone.

  In the following description, the detection of the current position in each mobile phone 1 and 2 will be described as being performed by the GPS unit. In addition, each mobile phone 1 and 2 receives location information from the radio base station, and Based on the information, the current position of each of the mobile phones 1 and 2 may be detected.

  In addition to the communication program, the memory 23 has a data communication program for enabling data communication with other mobile phones via the wide area network 3, and a viewer function for captured still images and moving images. A camera control program for controlling imaging of the camera unit 18 and an e-mail management program for controlling creation and transmission / reception of e-mails are stored.

  Further, the memory 23 is disclosed on a schedule book management program for managing a schedule book in which a user's schedule is registered, and on a server device provided on a predetermined network such as a communication network or the Internet. A web browsing program for browsing web pages, a phone book management program for managing phone books, and a music player program for playing music content are stored.

In addition, the memory 23 stores a schedule book in which a user's desired schedule is registered, a user name such as a user's acquaintance or friend, a still image (face photo, etc.), an address, a telephone number, an e-mail address, a date of birth And the like, music data reproduced based on the music player program, still image data and moving image data reproduced based on the viewer function of the camera control program, and transmitted / received e-mail data In addition, the outgoing and incoming call histories of telephones and e-mails are stored.

[Configuration of server device]
On the other hand, the server device 4 stores a data communication program for mediating data communication between the first and second mobile phones 1 and 2, map information, terminal information transmitted from each mobile phone 1 and 2, and the like. And a control unit that controls data communication between the mobile phones 1 and 2 based on a data communication program stored in the database.

As will be described later, in the case of the data communication system of the present embodiment, the users of the mobile phones 1 and 2 perform group registration in advance on the database of the server device 4, and the control unit of the server device 4 When searching for the second mobile phone 2 located within the specified geographical range or the second mobile phone 2 that meets the desired search condition, the mobile phone registered in this group is Search is to be performed.

[System operation of data communication system]
[Group registration operation]
First, each user who uses this data communication system registers the terminal information of the mobile phone he owns in the storage area of the group to which he belongs on the database of the server device 4. The flowchart of FIG. 3 shows a flow of operations in which the control unit of the server device 4 registers the terminal information of the mobile phone in the storage area of the corresponding group on the database. When a group registration request is made from the first mobile phone 1 or the second mobile phone 2, the control unit of the server device 4 starts the processing shown in this flowchart.

  In step S1, the control unit of the server apparatus 4 performs predetermined security authentication with the mobile phone that has requested group registration. In step S2, it is determined whether or not this security authentication has been successful. If the control unit of the server device 4 determines that the security authentication has been successful, the process proceeds to step S3. If the control unit determines that the security authentication has failed, the control unit proceeds to step S9.

  The fact that the security authentication has failed means that the user is not a regular user of the group or the system, so the control unit of the server device 4 does not respond to the user's mobile phone in step S9. A notification that the security authentication has failed is made, and the processing shown in the flowchart of FIG. 3 ends.

  On the other hand, when the process proceeds to step S3 by determining that the security authentication is successful, the control unit of the server device 4 makes a terminal information registration request to the user's mobile phone, and performs the process. Proceed to step S4. When this terminal information registration request is made, the control unit 24 of the mobile phone shown in FIG. 2 controls the activation of the GPS unit 22 based on the data communication program stored in the memory 23 and the current state of the mobile phone. The position information indicating the position is acquired.

And the control part 24 of a mobile telephone is 1. "Identifier that identifies the device" such as mobile phone number and device identifier,
2. "Device identification information" such as device name, device user name, device user company name,
3. "Communication type list information" that shows a list of communication types that can be used in data communication,
4). “Location information” indicating the current location of the mobile phone,
5). "Expiration date information" indicating the expiration date of location information
Etc. are transmitted to the server apparatus 4 as said terminal information.

  Next, when such terminal information is received from the mobile phone, the control unit of the server device 4 determines the content and format of the terminal information received from the mobile phone in step S4 of the flowchart of FIG. Incomplete terminal information is detected. Then, if the control unit of the server device 4 does not detect the deficiency of the terminal information, it determines that the received terminal information can be registered in the storage area of the group to which the user belongs on the database, The process proceeds to step S5. On the other hand, when the control unit of the server device 4 detects the lack of terminal information, the control unit cannot register the received terminal information in the storage area of the group to which the user belongs on the database. And the process proceeds to step S6.

  If the process proceeds to step S6 by detecting the lack of terminal information, the control unit of the server device 4 cannot register this terminal information in the database. Therefore, in step S6 and step S7, the terminal information for the database In step S10, the mobile phone of the user is notified that registration of the terminal information has failed, and the processing shown in the flowchart of FIG.

On the other hand, when the process proceeds to step S5 without detecting any deficiencies in terminal information, the control unit of the server device 4 registers the received terminal information in the storage area of the group to which the user belongs on the database. To do. In step S6 and step S7, it is determined that the terminal information has been successfully registered in the database. In step S8, the mobile phone of the user is notified that the terminal information has been successfully registered. The process shown in the flowchart of FIG. Thereby, terminal information such as an identifier for identifying a terminal of each mobile phone and position information indicating the current position is registered in the database of the server device 4 for each group.

[Search operation of desired mobile phone]
Next, when the terminal information of each mobile phone belonging to each group is registered in this way, among the users belonging to the group, the user who is located within a desired geographical range or matches the desired search condition. It is possible to search for a user to perform. The flowchart of FIG. 4 shows the flow of each operation of the control unit 24 of the first mobile phone 1 and the control unit of the server device 4 when searching for the desired mobile phone. In the flowchart of FIG. 4, the control unit 24 of the first mobile phone 1 which is a mobile phone on the side of searching for a desired mobile phone detects a search start operation performed by the user via the operation unit 16. Start processing.

  When the control unit 24 of the first mobile phone 1 detects a search start operation performed by the user via the operation unit 16, the control unit 24 inputs a desired geographical range and a desired search condition as shown in FIG. A search start designation button for designating the start of the search is displayed on the display unit 15 together with an input field for performing the search.

  Specifically, when searching for a user's mobile phone (= second mobile phone 2) belonging to the above-mentioned group within a desired geographical range, the user can, for example, address, place name via the operation unit 16. “Information for specifying the position” such as a landmark name is input. The control unit 24 displays the “information for specifying the position” input by the user in the input field. In this case, as will be described later, all mobile phones existing within a certain distance such as 2 km square or 10 km square from the position input by the user (= second mobile phone 2 of the user belonging to the above group) are detected. The Rukoto.

  Further, when searching for the second mobile phone 2 of a user belonging to the above group that meets the desired search condition, the user can, for example, enter a terminal name, a terminal user name, and a terminal user via the operation unit 16. Enter the “terminal identification information” such as the company name. The control unit 24 displays “information for identifying a terminal” input by the user in the input field. In this case, as will be described later, all mobile phones that meet the conditions input by the user (= the second mobile phone 2 of the user belonging to the group) are detected.

  In step S11, the control unit 24 of the first mobile phone 1 obtains the “information for specifying the position” and the “information for specifying the terminal” input by the user via the operation unit 16, and the process is performed. Proceed to S12. Then, in step S12, the control unit 24 of the first mobile phone 1 acquires the “position” acquired at the timing when the user performs an operation corresponding to the pressing operation of the search start designation button via the operation unit 16. "Information for identifying" and "information for identifying the terminal" are transmitted to the server device 4.

  Next, in step S <b> 13, the control unit of the server device 4 is registered in the database based on the “information for specifying the position” and “information for specifying the terminal” received from the first mobile phone 1. Then, the process proceeds to step S14 with reference to the terminal information of each user in the group to which the user of the first mobile phone 1 belongs. In step S <b> 14, the control unit of the server device 4 receives the “position” received from the first mobile phone 1 from among the users in the group to which the user of the first mobile phone 1 belongs. All mobile phones having terminal information corresponding to “information to be specified” and “information to specify terminal” are detected, list information indicating the list is formed, and the process proceeds to step S15. In step S <b> 15, the control unit of the server device 4 transmits the list information formed in step S <b> 14 to the first mobile phone 1.

  Specifically, when the control unit of the server apparatus 4 receives “information for specifying a position” from the first mobile phone 1, a certain geographical range from the position indicated by the “information for specifying the position” is used. Each mobile phone located within is detected based on terminal information of each user of the corresponding group registered in the database. Then, the control unit of the server device 4 has a predetermined geographic area from the position specified from the first mobile phone 1 together with the map information in a predetermined geographical range centered on the position specified from the first mobile phone 1. The terminal information (including position information and the user name of the terminal) of each mobile phone located within the target range is transmitted to the first mobile phone 1 as the list information.

  Similarly, when the control unit of the server device 4 receives “information for identifying a terminal” such as a company name from the first mobile phone 1, for example, each user who has registered the company name as the terminal information described above. The mobile phone is detected based on the terminal information of each user in the corresponding group registered in the database. And the control part of the server apparatus 4 is the map of the geographical range containing all the present positions of each said user with the terminal information (including location information, the user name of a terminal, etc.) of each detected mobile phone of each user. Information is transmitted to the first mobile phone 1 as the list information.

  Next, in step S <b> 16, the control unit 24 of the first mobile phone 1 determines the map information and the current position of each mobile phone indicated by the map information based on the list information transmitted from the server device 4. Information to be displayed is displayed on the display unit 15. Thereby, the search operation for a desired mobile phone in the data communication system shown in the flowchart of FIG. 4 is completed.

FIG. 5B shows a display example of the search results displayed on the display unit 15 of the first mobile phone 1 based on the list information. As shown in FIG. 5B, the control unit 24 of the first mobile phone 1 displays the current position of each mobile phone that meets the search condition on the map of the corresponding geographical range. In the example shown in FIG. 5B, the black circle on the map indicates the current position of each mobile phone corresponding to the search condition. The user of the first mobile phone 1 can recognize the current position of the user corresponding to his / her search condition by viewing the map and the position of the black circle.

[Data communication automatic setting operation]
Next, in the data communication system, the user of the first mobile phone 1 designates (selects) a desired user from among the users displayed in a list on the map in this way, and performs data communication. Can be done. The flowchart of FIG. 6 shows the flow of each operation of the first mobile phone 1 and the server device 4 when performing such data communication. In the flowchart of FIG. 6, the current position of each searched user is displayed on the display unit 15 of the first mobile phone 1 as shown in FIG. Become.

  First, in step S20, the control unit 24 of the first mobile phone 1 selects the user's mobile phone with which the data communication is performed, selected by the first mobile phone 1, and the data communication used in this data communication. Recognize the type.

  That is, when the current location of each user is displayed on the map as shown in FIG. 5B, the control unit 24 of the first mobile phone 1 displays the cursor CR on the current location of any user. It comes to control. The cursor CR can be moved and operated by the user operating the cross key or the like of the operation unit 16, and the control unit 24 performs this cursor operation each time the user operates the cross key or the like of the operation unit 16. The CR is sequentially displayed on the current position of each user.

  Further, when the control unit 24 detects that a predetermined time such as 1 second has elapsed after the cursor CR has moved to the current position of any user, the cursor CR received from the server device 4 is positioned. Based on the user terminal information, the display unit 15 displays the user name of the user where the cursor CR is located, icons indicating a list of communication types available for data communication, and the like.

  For example, when the mobile phone of the user where the cursor CR is located is capable of data communication of the camera image captured by the camera function provided in the mobile phone of the user where the cursor CR is located At the time of the above-described group registration, “camera video” is registered in the database of the server device 4 as a communication type that can be used for data communication, which is one of the terminal information, and when the above search is performed, this terminal Information is transmitted to the first mobile phone 1. Based on the terminal information received from the server device 4 when the cursor CR stops at the current position of the user on the map, the control unit 24 of the first mobile phone 1 performs the processing shown in FIG. As shown in FIG. 6, for example, an icon in the shape of a video camera indicating that data communication of “camera video” is possible is displayed on the display unit 15.

  Similarly, the user's mobile phone in which the cursor CR is located can perform data communication of the television video received by the television broadcast receiving function provided in the user's mobile phone in which the cursor CR is located. In the case of the above-described group registration, “television broadcasting” is registered in the database of the server device 4 as a communication type that can be used for data communication, which is one of the terminal information, and the above search is performed. When this occurs, this terminal information is transmitted to the first mobile phone 1. Based on the terminal information received from the server device 4 when the cursor CR stops at the current position of the user on the map, the control unit 24 of the first mobile phone 1 performs “TV broadcasting”. For example, an icon in the shape of a television receiver indicating that data communication is possible is displayed on the display unit 15.

  Similarly, data communication of music data reproduced by the music player function provided in the user's mobile phone in which the cursor CR is positioned is performed by the user's mobile phone in which the cursor CR is positioned, and the cursor CR. When the data communication of the image data (still image, moving image) stored in the mobile phone of the user where is located is possible, it is one of the terminal information at the time of the above group registration “Music data” and “image data” are registered in the database of the server device 4 as communication types that can be used in data communication, and when the above search is performed, this terminal information is transmitted to the first mobile phone 1. The Based on the terminal information received from the server device 4 when the cursor CR stops at the current position of the user on the map, the control unit 24 of the first mobile phone 1 stores “music data”. For example, an icon in the shape of a headphone device indicating that data communication is possible and an icon in the shape of a photo frame indicating that data communication of “image data” is possible are displayed on the display unit 15 in a list.

  The user operates the cursor CR to select a user's mobile phone that is a partner for data communication, and sets the data communication type of data communication performed with the selected user's mobile phone to the above list. Select based on each icon displayed in. In step S20, the control unit 24 of the first mobile phone 1 recognizes the user's mobile phone that is the data communication partner selected in this way and the data communication type used in the data communication, and performs processing. Proceed to step S21.

  In step S21, the control unit 24 of the first mobile phone 1 stores information indicating the mobile phone of the user who performs the data communication recognized in step S20, information indicating the data communication type of the data communication, and the like. The data is transmitted to the device 4 and a data communication start request is made with the mobile phone of the user who is the counterpart of the data communication.

  When receiving the data communication start request, the control unit of the server device 4 detects the user name of the user of the first mobile phone 1 that has made the data communication start request based on the terminal information registered in the database. Then, together with the information indicating the user name, information indicating the data communication type of the data communication received together with the data communication start request is transmitted to the mobile phone of the user who is to perform the data communication.

  When the control unit (= the control unit of the second mobile phone 2) of the user's mobile phone that is the partner of data communication receives the above information from the server device 4, the first mobile phone that has made a data communication start request Create a message asking whether or not data communication is possible by inserting the user name of the user of the telephone 1 and the requested data communication type, and operating this message with a “Yes” button to allow data communication; And it displays on a display part with the button of "No" operated when data communication is refused.

  Specifically, the user name of the user of the first mobile phone 1 who made the data communication start request is “user A”, and the data communication type requested by the user A is “camera video”. In this case, the control unit of the second mobile phone 2 creates a message asking whether data communication is permitted, such as “Do you want to allow camera video transmission to user A?” As shown in FIG. This message is displayed on the display unit together with the “Yes” button and the “No” button.

  In response to this message, when the user of the second mobile phone 2 permits data communication with the user A, the user performs an operation corresponding to the “Yes” button via the operation unit, and the user A When the data communication with is rejected, an operation corresponding to the “No” button is performed via the operation unit. The control unit of the second mobile phone 2 sends information corresponding to any of these operations to the server device 4 that allows data communication with the user A or rejects data communication with the user A. Send.

  When the control unit of the server device 4 receives the information from the second mobile phone 2, the user of the second mobile phone 2 is based on the received information in step S22 and step S23 in the flowchart of FIG. To determine whether the data communication is permitted or not, and if it is determined that the data communication is permitted, information indicating that the data communication is permitted is transmitted to the first mobile phone 1. To do.

  On the other hand, when the control unit of the server device 4 determines that the data communication is rejected, the control unit notifies the first mobile phone 1 of the failure of the data communication start request in step S31. In this case, the process shown in the flowchart of FIG.

  Next, when information indicating that data communication is permitted is received from the server device 4, the control unit 24 of the first mobile phone 1 performs data communication with the second mobile phone 2 in step S24. The data communication setting information on the first mobile phone 1 side when forming is formed, and the process proceeds to step S25.

  Specifically, when performing camera video data communication with the second mobile phone 2, the control unit 24 of the first mobile phone 1 performs camera video data transmission such as image size, bit rate, communication protocol, and the like. Data communication setting information on the first mobile phone 1 side for data communication is formed. Similarly, when performing television video data communication with the second mobile phone 2, the control unit 24 of the first mobile phone 1 is configured to transmit television video such as an image size, a bit rate, and a communication protocol. Data communication setting information on the first mobile phone 1 side for data communication is formed. When performing music data communication with the second mobile phone 2, the control unit 24 of the first mobile phone 1 can store music data such as a compression encoding method, a bit rate, and a communication protocol of the music data. Data communication setting information on the first mobile phone 1 side for data communication is formed.

  In step S25, the control unit 24 of the first mobile phone 1 receives the data communication setting information created in step S24 and information indicating the communication type used for data communication such as camera video and television video, for example. 4 and a request for setting this data communication.

  The server device 4 transmits data communication setting information on the first mobile phone 1 received from the first mobile phone 1 and information indicating a communication type used for data communication to the second mobile phone 2. The data communication setting request is made. Based on the data communication setting information on the first mobile phone 1 side received from the server device 4 and the information indicating the communication type used for data communication, the control unit of the second mobile phone 2 The communication circuit and the like are set and controlled so that the data communication with 1 can be executed. Then, when the communication setting of the communication circuit or the like is successful, the control unit of the second mobile phone 2 transmits the data communication setting information on the second mobile phone 2 side to the server device 4. On the other hand, if the control unit of the second mobile phone 2 fails in the communication setting of the communication circuit or the like, a message indicating that the communication setting has failed is displayed on the display unit of the second mobile phone 2. Information is displayed and information indicating that the communication setting has failed is transmitted to the server device 4.

  Next, when the data communication setting information on the second mobile phone 2 side is received from the second mobile phone 2, the control unit of the server device 4 receives the second mobile phone 2 side in step S 26 and step S 27. The data communication setting information on the second mobile phone 2 side is transmitted to the first mobile phone 1.

  On the other hand, when the control unit of the server device 4 receives information indicating that the communication setting has failed from the second mobile phone 2, the control unit proceeds to step S32 through step S26 and step S27. Information indicating that the data communication setting on the second mobile phone 2 side has failed is transmitted to the first mobile phone 1. When the control unit 24 of the first mobile phone 1 receives information indicating that the data communication setting on the second mobile phone 2 side has failed, for example, “the data communication setting on the second mobile phone 2 side has failed. A message indicating that the data communication setting on the second mobile phone 2 side has failed is displayed on the display unit 15. As a result, the user of the first mobile phone 1 recognizes that data communication with the second mobile phone 2 cannot be performed, and the process shown in the flowchart of FIG. 6 ends.

  On the other hand, when the data communication setting information on the second mobile phone 2 side is received from the server device 4, the control unit 24 of the first mobile phone 1 in step S28, the second mobile phone 2 in step S25. Based on the data communication setting information transmitted to the side, the communication circuit 12 on the first mobile phone 1 side is set and controlled. For example, when the camera video data communication is performed with the second mobile phone 2, the control unit 24 of the first mobile phone 1 is based on the data communication setting information transmitted to the second mobile phone 2 side. Thus, setting control of the image size, bit rate, communication protocol, and the like is performed on the communication circuit 12 and the like.

  Next, in step S29, the control unit 24 of the first mobile phone 1 determines whether or not the data communication setting for enabling data communication with the second mobile phone 2 is successful, If it is determined that the data communication setting has failed, the process proceeds to step S33, and a message indicating that the data communication setting has failed, such as “data communication setting failed”, is displayed on the display unit 15. At the same time, information indicating that the communication setting has failed is transmitted to the server device 4.

  As a result, the user of the first mobile phone 1 recognizes that data communication with the second mobile phone 2 cannot be performed, and the process shown in the flowchart of FIG. 6 ends. When the control unit of the server device 4 receives information indicating that the communication setting has failed from the first mobile phone 1, the control unit 4 transmits this information to the second mobile phone 2. When the control unit of the second mobile phone 2 receives this information, the data communication setting on the first mobile phone 1 side such as “data communication setting failed on the first mobile phone 1 side” is set. A message indicating the failure is displayed on the display unit. As a result, the user of the second mobile phone 2 recognizes that data communication with the first mobile phone 1 cannot be performed, and the process shown in the flowchart of FIG. 6 ends.

  On the other hand, when the control unit 24 of the first mobile phone 1 determines in step S29 that the data communication setting for enabling data communication with the second mobile phone 2 is successful, Then, the process proceeds to step S30, data communication with the second mobile phone 2 is started, and all the processes shown in the flowchart of FIG. 6 are completed.

  In FIG. 5 (d), when the camera video data communication is performed between the first mobile phone 1 and the second mobile phone 2, it is displayed on the display unit 15 of the first mobile phone 1. The example of a display of the camera image imaged with the camera function of the 2nd mobile telephone 2 is shown.

  When the camera video data communication is started between the first mobile phone 1 and the second mobile phone 2, the camera video captured on the second mobile phone 2 side is sent via the server device 4 to the second mobile phone 2. 1 to the mobile phone 1. As shown in FIG. 5D, the control unit 24 of the first mobile phone 1 displays the current position of the second mobile phone 2 on the map received from the server device 4 before this data communication, and the display unit 15. The display unit 15 displays an icon in the shape of a video camera device indicating the type of data communication of the camera video performed between the first mobile phone 1 and the second mobile phone 2. Display in the display area on the left side of the lower half. Then, the control unit 24 of the first mobile phone 1 displays the camera image captured by the second mobile phone 2 in the display area on the right side of the lower half of the display unit 15.

  As a result, the user of the first mobile phone 1 can now obtain the current position of the second mobile phone 2 that is currently performing data communication, the communication type (camera video in the example shown in FIG. 5D), and A camera image captured by the camera function of the second mobile phone 2 can be viewed.

  In the example shown in FIG. 5D, the control unit 24 of the first mobile phone 1 displays the current position, communication type, and camera image of the second mobile phone 2 on the display unit 15. However, only the camera image may be displayed on the display unit 15. In this case, since the entire display area of the display unit 15 can be used for displaying the camera video, the camera video can be displayed in a large size, and the second mobile phone 2 can be displayed to the user of the first mobile phone 1. It is possible to make it easier to visually recognize the camera image captured by the camera.

  In this example, on the first mobile phone 1 side, data communication of the camera image captured by the camera function of the second mobile phone 2 is performed. A sensor output detected by a predetermined sensor provided may be data-communicated. For example, the user of the first mobile phone 1 can communicate the data indicating the outside air temperature detected by the temperature sensor provided in the second mobile phone 2, so that the user of the first mobile phone 1 can Can recognize the outside temperature.

Further, terminal information of a mobile phone that is frequently searched may be registered in the database of the server device 4 with a mark such as a flag added thereto. As a result, the amount of data communication can be minimized, and the communication cost and power consumption of the first mobile phone 1 and the second mobile phone 2 can be reduced.

[Current location update operation mainly for the first mobile phone]
Next, as shown in FIG. 5D, the user of each second mobile phone 2 displayed on the map may move. Therefore, in the data communication system, the user of the first mobile phone 1 can confirm the current position by designating the desired second mobile phone 2 at a desired timing. The flowchart of FIG. 7 shows the flow of the current position confirmation operation of the desired second mobile phone 2 in the first mobile phone 1. In this flowchart, as shown in FIG. 5B or FIG. 5D, the map and the current position of each second mobile phone 2 are displayed on the display unit 15 of the first mobile phone 1, The process starts when the user of one mobile phone 1 moves the cursor CR and designates the second mobile phone 2 for confirming the current position.

  First, in step S <b> 41, the control unit 24 of the first mobile phone 1 confirms the current position designated by the user of the first mobile phone 1 via the operation unit 16. An identifier for identifying the second mobile phone 2 (= “identifier for identifying a terminal” such as a mobile phone number or a device identifier) is acquired from the terminal information and transmitted to the server device 4 to obtain a position acquisition request I do.

  In step S42, the control unit of the server device 4 stores the second mobile phone 2 registered in the database based on the identifier that identifies the second mobile phone 2 received from the first mobile phone 1. Refer to the terminal information. As described above, “expiration date information” indicating the expiration date of the location information of each mobile phone is stored in the database of the server device 4 as one of the terminal information.

  Therefore, whether or not the control unit of the server device 4 can acquire the current position of the second mobile phone 2 by communicating with the designated second mobile phone 2 in step S43. And the position information of the designated second mobile phone 2 stored in the database is determined whether the information is within the expiration date. And the control part of the server apparatus 4 performs the following process procedures based on the determination result in this step S43.

  First, for example, when it is determined that communication with the second mobile phone 2 cannot be performed in a state where the power of the second mobile phone 2 is turned off, the second mobile phone 2 Since the current position cannot be acquired from step S45, the process proceeds to step S45. Then, the process proceeds to step S48 through steps S45 and S46, and a notification of current position acquisition failure such as “current position could not be detected” is sent to the first mobile phone 1. Then, the process shown in the flowchart of FIG.

  Further, although communication with the second mobile phone 2 is possible, it is determined that the location information of the designated second mobile phone 2 stored in the database is information within the expiration date. In this case, since it is not necessary to acquire the current position of the second mobile phone 2, the control unit of the server device 4 proceeds to step S 48 via step S 45 and step S 46, so that the first mobile phone 1 For example, a notification that the acquisition of the current position is unnecessary, such as “no position movement”, is made, and the process shown in the flowchart of FIG. 7 ends.

  When communication with the second mobile phone 2 is possible, but it is determined that the location information of the designated second mobile phone 2 stored in the database is expired information The control unit of the server device 4 advances the process to step S44. In step S <b> 44, the control unit of the server device 4 issues an acquisition request for the current position to the second mobile phone 2 designated by the user of the first mobile phone 1. Upon receiving this current position acquisition request, the control unit of the second mobile phone 2 detects, for example, the current position of the second mobile phone 2 by controlling the activation of a GPS unit or the like, for example. The current position information is transmitted to the server device 4. When detecting the current position with the second mobile phone 2, the current position detection function such as a GPS unit is always performed by performing only at the timing when the acquisition of the current position is made from the server device 4. There is no need to drive, and power consumption can be reduced.

  When the control unit of the server device 4 acquires the current position information from the second mobile phone 2 in this manner, the position information of the second mobile phone 2 stored in the database in step S45 and step S46. And the current location information and the update time information of the current location are transmitted to the first mobile phone 1.

  When the control unit 24 of the first mobile phone 1 receives the current location information and the update time information of the current location, among the current locations of the second mobile phones 2 displayed on the display unit 15, The current location information of the second mobile phone 2 (= second mobile phone 2 corresponding to the current location information received from the server device 4) designated by the user of the first mobile phone 1 is used as the current location information. Based on the update display control. Thereby, all the processes shown in the flowchart of FIG. 7 are completed.

FIG. 5D shows an example of this update display control. In the case of the example shown in FIG. 5D, the control unit 24 of the first mobile phone 1 displays the arrow extending from the original position of the specified second mobile phone 2 to thereby display the specified first 2 shows the original position, moving direction, and moving position of the mobile phone 2 (the tip portion of the arrow indicates the current position). Thereby, the user of the first mobile phone 1 can designate the desired second mobile phone 2 and recognize the current position.

[Current position update operation mainly for the second mobile phone]
Next, the above-described example is the update operation of the current position of the second mobile phone 2 mainly composed of the first mobile phone 1, but the user of the second mobile phone 2 changes his / her movement position. You may want to update actively. For this reason, in the data communication system, the user of the second mobile phone 2 can update his current position at a desired timing. The flowchart of FIG. 8 shows the flow of the update operation of the current position in the second mobile phone 2. In this flowchart, the process is started when the user of the second mobile phone 2 performs an update operation of the current position of the second mobile phone 2 via the operation unit.

  First, in step S51, the control unit of the second mobile phone 2 activates and controls the current position detection function such as a GPS unit provided in the second mobile phone 2, and the second mobile phone 2 Detect current position. Then, the control unit of the second mobile phone 2 uses the detected current position information indicating the current position of the second mobile phone 2 as an identifier (= mobile phone number or This is transmitted to the server apparatus 4 together with “an identifier for identifying a terminal” such as a device identifier, and a location update request is made.

  In step S52, the control unit of the server device 4 refers to the database based on the identifier for identifying the second mobile phone 2 received from the second mobile phone 2, and in step S53, the control unit 4 stores the data in the database. It is determined whether or not the position information of the second mobile phone 2 that is present can be updated.

  If it is determined in step S52 that the position information of the second mobile phone 2 cannot be updated, the control unit of the server device 4 proceeds to step S55 and step S56, and the second mobile phone 2 For example, an error message such as “Failed to update current position” is transmitted. The control unit of the second mobile phone 2 displays this error message on the display unit. As a result, the user of the second mobile phone 2 recognizes that the update of the current position has failed. When the current position is updated again, the position update request in step S51 described above is performed again.

  On the other hand, if it is determined in step S52 that the position information of the second mobile phone 2 can be updated, the control unit of the server device 4 in step S54 stores the second mobile phone on the database. The position information corresponding to the identifier specifying 2 is updated to the latest received current position information. Then, in step S55 and step S56, the control unit of the server device 4 transmits a message indicating that the position information has been successfully updated, such as “position information has been updated”, to the second mobile phone 2. Thereby, the update process of the current position in the second mobile phone 2 shown in the flowchart of FIG. 7 ends.

Since the user of the second mobile phone 2 may move at a high speed by taking a train or the like, for example, the user of the second mobile phone 2 can voluntarily update the current position in this way. Thus, it is possible to always register the latest current position information in the database.

[Effect of the embodiment]
As is clear from the above description, in the data communication system of this embodiment, the current positions of the mobile phones 1 and 2 are registered in advance in the database of the server device 4 on the wide area network 3. When a search condition such as a desired geographical range or a desired company name is specified by the user of the first mobile phone 1 that is the mobile phone on the search side, the control unit of the server device 4 registers in the database. The second mobile phone 2 located within a desired geographical area or the second mobile phone 2 corresponding to the designated search condition is detected from the second mobile phones 2 of each user. . And the control part of the server apparatus 4 is located in the said geographical range with the map information corresponding to the said designated geographical range with respect to the 1st mobile phone 1 which is a mobile telephone of the side which searches. The position information of each second mobile phone 2 is transmitted. Alternatively, the map information of the range including the current position of each second mobile phone 2 is transmitted to the first mobile phone 1 together with the position information of each second mobile phone 2 corresponding to the search condition.

  Thereby, the current position of each second mobile phone 2 can be displayed in a list on the display unit 15 of the first mobile phone 1 which is the mobile phone on the search side. For this reason, the user of the first mobile phone 1 can grasp at a glance the user (= each second mobile phone 2) corresponding to the geographical range and search condition designated by the user. It is possible to easily recognize the current position of the user.

  Further, a desired second mobile phone 2 is selected from each second mobile phone 2 displayed in a list on the display unit of the first mobile phone 1, and a communication type such as camera video or music data is selected. Just by selecting, a communication connection corresponding to the selected communication type is automatically established between the first mobile phone 1 and the second mobile phone 2 via the server device 4 on the wide area network 3. Thus, data communication is performed between the first mobile phone 1 and the second mobile phone 2. For this reason, the function of the second mobile phone 2 can be easily used on the first mobile phone 1 side.

  Further, since the server device 4 on the wide area network 3 establishes a communication connection between the first mobile phone 1 and the second mobile phone 2, for example, Bluetooth (Bluetooth: registration) Data communication between the first mobile phone 1 and the second mobile phone 2 can be performed without restriction of the communication distance as in the case of using short-range wireless communication such as a trademark.

  Further, when the current position of any second mobile phone 2 displayed on the display unit 15 of the first mobile phone 1 moves, the moving position and the moving direction are displayed with arrows together with the original position. (See FIG. 5D). For this reason, the user of the first mobile phone 1 can recognize at a glance the moving direction and moving position of the second mobile phone 2 that has moved.

  Further, in the data communication system, the first mobile phone 1 displays the data such as the camera video received from the second mobile phone 2 together with the current position (and map) of the second mobile phone 2 on the display unit 15. To be displayed. For this reason, it is possible to operate the functions provided in the second mobile phone 2 while confirming the current position of the second mobile phone 2 on the map.

  In addition, since the current position information can be acquired from the second mobile phone 2 that is moving, it is possible to eliminate the trouble of specifying the position. For example, even when the user of the second mobile phone 2 that is the user to be searched is located in a remote place such as overseas, and it is difficult to specify the current location of the user of the second mobile phone 2, It is possible to easily detect the desired current position of the user of the second mobile phone 2. Further, even when the current positions of the users of a large number of second mobile phones 2 are specified, it is possible to detect them at once without any trouble. Such a position search function can also contribute to searching for a meeting partner or a lost child.

  Finally, the above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and various modifications can be made according to the design and the like as long as they do not depart from the technical idea of the present invention. I add that there is something.

It is a figure for demonstrating the system configuration | structure of the data communication system used as embodiment which applied this invention. It is a block diagram of a mobile phone used in the data communication system of the embodiment. It is a flowchart which shows the flow of the group registration operation | movement in the data communication system of embodiment. It is a flowchart for demonstrating the search operation of the desired mobile telephone in the data communication system of embodiment. It is a figure which shows the example of a display of the present position etc. of each searched mobile telephone in the data communication system of embodiment. 6 is a flowchart showing a flow until a communication connection is automatically established with a designated mobile phone and data communication is started in the data communication system of the embodiment. 5 is a flowchart for explaining an operation of detecting a current position by designating a desired mobile phone in the data communication system of the embodiment. 5 is a flowchart for explaining a current position update operation that each mobile phone voluntarily performs in the data communication system of the embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Mobile phone (first mobile phone) on search side, 2 Mobile phone on search side (second mobile phone), 3 Wide area network such as the Internet, 4 Server device provided on wide area network, 5 mobile phone radio base station, 11 mobile phone antenna, 12 communication circuit, 13 speaker unit, 14 microphone unit, 15 display unit, 16 operation unit, 17 light emitting unit (LED), 18 camera unit, 19 vibration unit, 20 Timer, 21 GPS antenna, 22 GPS unit, 23 memory, 24 control unit, CR cursor

Claims (5)

A terminal device having a communication function as a searcher;
A plurality of portable terminal devices which are terminal devices to be searched, having portability, a current position detection function, a predetermined usable function usable in the terminal device, and a wireless communication function;
A predetermined identifier for identifying each mobile terminal device provided on a wide area network, current position information indicating a current position detected by a current position detection function of each mobile terminal device, and each of the mobile terminal devices A server device comprising a database in which terminal information including communication setting information of each portable terminal device for establishing a communication connection with the terminal device is registered. Have
The server device is designated by the terminal device by referring to the current position information of each mobile terminal device registered in the database when a predetermined geographical range is designated by the terminal device. Detecting each of the mobile terminal devices located in the geographical range, the current position information of each mobile terminal device, the terminal information of each mobile terminal device, and the map information corresponding to the geographical range specified from the terminal device To the terminal device,
The terminal device displays map information corresponding to the designated geographical range received from the server device on the display unit, and displays a list of current position information of each portable terminal device on the map information. And
When the desired mobile terminal device and the available function of the desired mobile terminal device are designated from the terminal device that displays a list of current position information of each mobile terminal device, the server device Based on the communication setting information included in the terminal information of the designated mobile terminal device registered in the database, the server device and the terminal device are connected between the designated mobile terminal device and the terminal device. Establish a communication connection for the above available functions over a wide area network,
The data communication system in which the terminal device and the designated mobile terminal device perform data communication corresponding to the usable function of the designated mobile terminal device via the communication connection established by the server device. When the predetermined search condition is specified from the terminal device, the server device corresponds to the specified predetermined search condition based on the terminal information of each portable terminal device registered in the database. The mobile terminal device is detected, and the current location information of each mobile terminal device, the terminal information of each mobile terminal device, and the map information corresponding to the geographical range including each current location of each mobile terminal device To
The data according to claim 1, wherein the terminal device displays the map information received from the server device on a display unit, and displays a list of current position information of the mobile terminal devices on the map information. Communications system. The server device acquires the current position of each mobile terminal device at a predetermined timing, transmits current position information indicating the acquired current position of each mobile terminal device to the terminal device,
The terminal device updates the current position information of the mobile terminal devices displayed on the display unit based on the current position information of the mobile terminal devices received from the server device. Item 3. The data communication system according to Item 2. The data according to claim 3, wherein when updating the current position information of each of the mobile terminal devices, the terminal device performs an update process for displaying an arrow connecting the position before the update and the current position after the update. Communications system. A terminal device having a communication function as a searcher;
A plurality of portable terminal devices which are terminal devices to be searched, having portability, a current position detection function, a predetermined usable function usable in the terminal device, and a wireless communication function;
A predetermined identifier for identifying each mobile terminal device provided on a wide area network, current position information indicating a current position detected by a current position detection function of each mobile terminal device, and each of the mobile terminal devices A server device having a database in which terminal information including communication setting information of each mobile terminal device is registered for establishing a communication connection with the terminal device; A data communication method in a data communication system comprising:
The server device is designated by the terminal device by referring to the current position information of each mobile terminal device registered in the database when a predetermined geographical range is designated from the terminal device. Detecting each of the mobile terminal devices located in the geographical range, the current position information of each mobile terminal device, the terminal information of each mobile terminal device, and the map information corresponding to the geographical range specified from the terminal device To the above terminal device,
The terminal device displays the map information corresponding to the designated geographical range received from the server device on the display unit, and displays the current position information of each portable terminal device as a list on the map information. And
When the server device designates a desired mobile terminal device from the terminal device that displays a list of current position information of each mobile terminal device and the usable function of the desired mobile terminal device, Based on the communication setting information included in the terminal information of the designated mobile terminal device registered in the database, the server device and the terminal device are connected between the designated mobile terminal device and the terminal device. Establish a communication connection for the above available functions over a wide area network,
A data communication method in which the terminal device and the designated mobile terminal device perform data communication corresponding to the usable function of the designated mobile terminal device via the communication connection established by the server device.

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