JP4507087B2 - Portable communication terminal, navigation information distribution apparatus, and navigation system - Google Patents

Description

  The present invention is, for example, a mobile communication terminal such as a mobile phone terminal or a PDA (Personal Digital Assistant) having a communication function, a car navigation device, a navigation information distribution device that distributes navigation information to these mobile communication terminals, It relates to a navigation system comprising them.

  Conventionally, for example, in a mobile phone terminal having a GPS (Global Positioning System) function, positioning information obtained by the GPS function can be used to enable the user of the mobile phone terminal to navigate to a desired destination. Pedestrian navigation services have been put into practical use.

  In addition, a service in which a plurality of mobile phone terminals having a GPS function is used and the positions of the mobile phone terminals are confirmed with each other is also in practical use (Non-Patent Document 1).

  In the service disclosed in Non-Patent Document 1, when a partner user is selected from a plurality of pre-registered user lists, the location information of the partner user is obtained from the user's mobile phone. Search based on the GPS function of the terminal or the base station area where the user's mobile phone terminal is located, and a search function to notify the terminal of the position information, and the location where the user is present, that is, the position of the terminal Two functions of a location notification function for notifying a destination user (a mobile phone terminal of the destination user) are provided.

  Here, in the service, when checking the position of the counterpart user, a preset character is displayed on the display screen, and after obtaining permission from the counterpart user, the character is sent to the counterpart user. The location information is notified.

  The position of the other user can be confirmed on a map displayed on the display of the terminal. In addition, after being notified of the location information of the other party user, for example, transmission / reception of an e-mail, telephone call, so-called chat or the like can be performed with the other party user.

  Further, for example, in Japanese Unexamined Patent Application Publication No. 2002-333338 (Patent Document 1), the first and second mobile terminals having a communication function, an information center having a communication function, the mobile terminal and the information center are disclosed. And the information center receives the position information of the first mobile terminal and the position information of the second mobile terminal transmitted from the first mobile terminal, and receives them. In accordance with the position information, the optimal meeting place of the first and second mobile terminals is calculated, and the waiting place information obtained by the calculation is transmitted to at least the first mobile terminal. As a result, the first and second mobile terminals can obtain information on the optimal meeting place (meeting point) from the information center, and an information processing apparatus that can improve convenience can be opened. It is.

JP 2002-333338 A (FIG. 1) [Search October 12, 2004], Internet <URL: http://k-tai.impress.co.jp/cda/article/news_toppage/9835.html>

  By the way, in the service described in Non-Patent Document 1 described above, only a pre-registered user can be selected as a destination user who wants to know the position.

  Therefore, it is impossible to notify the location information of an unregistered user, and if the user wants to know the location of the unregistered user, the user must be newly registered, which is very inconvenient. It is.

  On the other hand, in the system for navigating to the optimum meeting place described in Patent Document 1 described above, a special network for connecting each mobile terminal and the information center is required, and a large-scale network system is constructed. As a result, an increase in cost is inevitable.

  Although it is conceivable to use an existing mobile phone network system as the mobile terminal and its network system, even in this case, a new data format or the like must be determined for data transmitted / received on the network. However, this also inevitably increases costs.

  The present invention has been proposed in view of such circumstances, and does not require a complicated procedure such as user registration, and does not require a new network construction or a new data format. It is an object of the present invention to provide a portable communication terminal, a navigation information distribution device, and a navigation system including them, which can navigate a user to an optimal meeting place.

Mobile communication terminal of the present invention includes an input means for acquiring an instruction input from the user, a signal transmitting and receiving means for transmitting and receiving signals, a positioning means for detecting the current position of the terminal, capable of displaying images screen display means having a, and a control unit which controls the operations of the display means signal transmitting and receiving means and the positioning means. Then, in response to a predetermined instruction input from the user, the control means generates trigger information when the navigation information distribution device executes generation and distribution of navigation information for joining with a user-desired partner terminal. Insert the navigation request mail with the terminal into the navigation request mail for requesting the start of navigation to the user of the counterpart terminal, and send the navigation request mail with the trigger information inserted via the navigation information distribution device After sending the navigation request mail to the destination terminal and sending the navigation request mail, sending and receiving the navigation consent mail indicating the consent to the navigation start request sent from the destination terminal to the local terminal via the navigation information distribution device means is received, further navigation When receiving the information of the navigation start guide sent from the information distribution apparatus, together to start the detection operation of the current position by the positioning means to transmit the data of the current position of the own terminal to the navigation information distribution apparatus. Further, the control means, Re data and its current position and the merging position thereof both terminals of the current position and the destination terminal of the own terminal transmitted from the navigation information delivery apparatus as the navigation information for merging with the other party terminal When the map data to which each position is placed is received, an image on the screen showing the current position of the terminal itself, the current position of the partner terminal, and the merged position of both terminals is displayed on the screen. Ru is. Thereby, the portable communication terminal of this invention solves the subject mentioned above.

The mobile communication terminal of the present invention, can display an input means for acquiring an instruction input from the user, a signal transmitting and receiving means for transmitting and receiving signals, a positioning means for detecting the current position of the terminal, the images display means having a screen similar, and a control means for controlling the operation of the display means signal transmitting and receiving means and the positioning means. Then, the control means, the destination terminal has been through the navigation information delivery apparatus transmits addressed to its own terminal, after receiving the navigation request mail indicating the navigation start request, in response to a predetermined instruction input from the user Trigger information when the navigation information distribution device executes generation and distribution of navigation information for merging with the partner terminal, in response to a navigation start request for the user of the partner terminal and the user of the partner terminal Inserted into the navigation approval mail indicating the approval, the navigation approval mail with the trigger information inserted is sent back to the destination terminal via the navigation information distribution device, and after the navigation approval mail is sent, the navigation information is distributed. navigation start proposal sent from the device When receiving the information, along with to start the detection operation of the current position by the positioning means to transmit the data of the current position of the own terminal to the navigation information distribution apparatus. Further, the control means, Re data and its current position and the merging position thereof both terminals of the current position and the destination terminal of the own terminal transmitted from the navigation information delivery apparatus as the navigation information for merging with the other party terminal When the map data to which each position is placed is received, an image on the screen showing the current position of the terminal itself, the current position of the partner terminal, and the merged position of both terminals is displayed on the screen. Ru is. Thereby, the portable communication terminal of this invention solves the subject mentioned above.

In addition, the navigation information distribution apparatus of the present invention manages interface means for connecting to a predetermined communication network, and e-mails transmitted and received via the predetermined communication network, and between two or more portable communication terminals. When a navigation request e-mail requesting the start of navigation when these mobile communication terminals meet and a navigation approval e-mail that accepts the navigation start request are sent and received via the own device A mail management means for detecting whether or not trigger information when the own apparatus executes generation and distribution of navigation information for the mobile communication terminal to join to the navigation request mail and the navigation consent mail ; a data storage means for storing the MAP data, navigation After it is detected that the trigger information is inserted in the request mail and navigation unwanted emails, and based on the data for each sent come current position from the transmission source mobile communication terminal of the navigation request mail and navigation unwanted emails Te, a merging position calculating means for calculating a merging position to merge their mobile communication terminal, merging position and reads out map data for placing the current position of each mobile communication terminal, merging position and each mobile communication terminal By having control means for distributing the current position data and the map data as navigation information to the mobile communication terminals that are the transmission sources of the navigation request mail and the navigation consent mail , the above-described problems are solved.

The navigation system of the present invention, first, the second at least two mobile communication terminals, each equipped with a display function of respective own terminal detectable function of the current position and the e-mail transmission and reception functions and images A navigation system having a function of managing e-mails transmitted and received between the first and second mobile communication terminals and a navigation information distribution device for distributing navigation information to the first and second mobile communication terminals. Then, the first mobile communication terminal triggers when the navigation information distribution device executes generation and distribution of navigation information for joining with the second mobile communication terminal terminal in response to a predetermined instruction input from the user. Information is inserted into a navigation request mail for requesting the start of navigation for the user of the second mobile communication terminal and the user of the second mobile communication terminal, and the navigation request mail in which the trigger information is inserted Is transmitted to the second portable communication terminal via the navigation information distribution apparatus . On the other hand, the second mobile communication terminal, the first mobile communication terminal has reached through the navigation information delivery apparatus transmits addressed to its own terminal, after receiving the navigation request mail indicating the navigation start request from the user Trigger information when the navigation information distribution device executes generation and distribution of navigation information for merging with the first portable communication terminal in response to the predetermined instruction input , with the first portable communication terminal as the destination and The navigation approval mail in which the trigger information is inserted is inserted into the navigation approval mail indicating the approval of the navigation start request for the user of the first mobile communication terminal, and the first mobile phone is passed through the navigation information distribution device. Reply to the communication terminal. In addition, the first mobile communication terminal receives a navigation approval mail representing the approval for the navigation start request transmitted from the second mobile communication terminal to the terminal and passing through the navigation information distribution apparatus. The navigation information distribution device includes a navigation request mail transmitted from the first portable communication terminal to the second portable communication terminal, and a navigation reply sent from the second portable communication terminal to the first portable communication terminal. When it is detected that the trigger information is inserted in the acceptance mail , the navigation start guidance information is transmitted to the first and second portable communication terminals . In addition, when the first mobile communication terminal receives the navigation start guidance information sent from the navigation information distribution device, the first mobile communication terminal starts an operation for detecting the current position of the own terminal and also detects the detected current position of the own terminal. Is transmitted to the navigation information distribution apparatus. When the second portable communication terminal receives the navigation start guidance information sent from the navigation information distribution device, the second portable communication terminal starts the operation of detecting the current position of the own terminal and also detects the detected current position data of the own terminal. Is transmitted to the navigation information distribution apparatus. Then, the navigation information distribution device calculates the merging position of the first and second mobile communication terminals based on the data of the current position respectively sent from the first and second portable communication terminals, and the merging The position, the current position data of each mobile communication terminal, and the map data for arranging each position are distributed as navigation information to the first and second mobile communication terminals. In addition, when the first and second mobile communication terminals receive the navigation information distributed from the navigation information distribution device, each of the images in which the merge position and the current position of each mobile communication terminal are arranged on the map is displayed on the screen. To display. Thereby, the navigation system of this invention solves the subject mentioned above.

The mobile communication terminal of the present invention, can display an input means for acquiring an instruction input from the user, a signal transmitting and receiving means for transmitting and receiving signals, a positioning means for detecting the current position of the terminal, the images display means having a screen similar has a reading means for reading map data, and control means for controlling the operation of the display means and reading means signal transmitting and receiving means and the positioning means from a predetermined storage medium. Then, in response to a predetermined instruction input from the user, the control means displays trigger information when the destination terminal executes display of navigation information for joining with the destination terminal desired by the user. The navigation request mail is inserted into the navigation request mail for requesting the start of navigation to the user of the partner terminal and the navigation request mail with the trigger information inserted is transmitted to the partner terminal. Furthermore, after the navigation request mail is transmitted , the control means receives the navigation consent mail indicating the consent to the navigation start request transmitted from the partner terminal to the own terminal, When it is detected whether or not the trigger information for executing the generation and distribution of the navigation information for joining with the destination terminal is executed in the own terminal, and the trigger information is detected, the navigation starts. Send the guidance information to the destination terminal. In addition, after transmitting the navigation start guidance information , the control means joins the own terminal and the destination terminal based on the current position sent from the destination terminal and the current position data detected by the positioning means. The map data for calculating the position and arranging the merged position and the current position sent from the partner terminal and the current position of the own terminal detected by the positioning means are read from a predetermined storage medium by the reading means. The merged position, the current position of the partner terminal, the current position data of the own terminal, and the map data are distributed as navigation information to the partner terminal. At the same time, the control means, Ru display the current position and current position of the terminal of the resulting merge position and the destination terminal by the operation on the screen of the display means an image placed on the map. Thereby, the portable communication terminal of this invention solves the subject mentioned above.

The mobile communication terminal of the present invention, can display an input means for acquiring an instruction input from the user, a signal transmitting and receiving means for transmitting and receiving signals, a positioning means for detecting the current position of the terminal, the images display means having a screen similar, and a control means for controlling the operation of the display means signal transmitting and receiving means and the positioning means. Then, the control means, the partner terminal has transmitted addressed to the own terminal, after receiving the navigation request mail indicating the start request of the navigation to merge with the destination terminal, consent for the start request for the navigation In response to a predetermined navigation instruction input from the user , the navigation consent mail is used as trigger information when the destination terminal executes generation and distribution of navigation information for joining with the own terminal. When the navigation start guidance information is received from the destination terminal after the navigation acceptance mail is returned , the current position detecting means starts the operation of detecting the current position, and The data of the current position of the terminal detected by the positioning means is transmitted to the partner terminal, and Current position and the current position and the data and its those respective positions of the merging location of the terminal itself and the destination terminal of the own terminal of the partner terminal sent from the previous terminal is received with the map data allocated when, Ru display the current position and the current position and the merging position of the terminal of the partner terminal on the screen of the display means an image placed on the map. Thereby, the portable communication terminal of this invention solves the subject mentioned above.

The navigation system of the present invention includes at least two portable communication terminals each having a function capable of detecting the current position of the terminal, an e-mail transmission / reception function, and an image display function. mobile communication terminal is a navigation system having a function of transmitting the navigation information to the other mobile communication terminal with the ability to store map data. Then, in response to a predetermined instruction input from the user , one mobile communication terminal displays trigger information when the other mobile communication terminal executes display of navigation information for joining with the other mobile communication terminal. The other mobile communication terminal is inserted into the navigation request mail for requesting the start of navigation to the user of the other mobile communication terminal, and the navigation request mail in which the trigger information is inserted is inserted into the other mobile communication Send to the terminal . When the other mobile communication terminal returns the navigation approval mail indicating the approval for the navigation start request after receiving the navigation request mail, the other mobile communication terminal joins with the one mobile communication terminal in response to a predetermined instruction input from the user. Trigger information when one mobile communication terminal executes the generation and distribution of navigation information is inserted into the navigation approval mail and returned. One mobile communication terminal receives the navigation consent mail returned from the other mobile communication terminal, and trigger information when the own terminal executes generation and distribution of navigation information is inserted into the navigation consent mail. When it is detected that, after transmitting the information of the navigation start guidance to the other mobile communication terminal, based on the data of the current position detected by the current position and the own terminal to come are sent the other mobile communication terminal or al calculates the merging position of the own terminal and the other mobile communication terminal, and data of the current position of the current position and the other mobile communication terminal of the merge position and the own terminal, and map data for placing them each position distribution, and transmits the navigation information to the other mobile communication terminal, the current position of the current position and the other of the mobile communication terminal of the merge position and the terminal itself on the map To display the image on the screen. In addition, when the other mobile communication terminal receives the navigation information sent from one mobile communication terminal, an image in which the merge position, the current position of the one mobile communication terminal, and the current position of the own terminal are arranged on a map. the that displays on the screen. Thereby, the navigation system of this invention solves the subject mentioned above.

The mobile communication terminal of the present invention, can display an input means for acquiring an instruction input from the user, a signal transmitting and receiving means for transmitting and receiving signals, a positioning means for detecting the current position of the terminal, the images display means having a screen similar has a reading means for reading map data, and control means for controlling the operation of the display means and reading means signal transmitting and receiving means and the positioning means from a predetermined storage medium. The control means, when the destination terminal receives the navigation request mail indicating the navigation initiation request transmitted addressed to its own terminal, the distribution and generation of the navigation information for merging the own terminal to the navigation request mail It is detected whether or not trigger information for execution on the terminal is inserted, and when the trigger information is detected, a navigation consent mail indicating consent to the navigation start request is received in response to a predetermined instruction input from the user. , Insert the trigger information when the destination terminal executes the display of the navigation information for joining with the own terminal, and after returning the navigation approval mail with the trigger information inserted, the navigation start guidance information The current position sent from the destination terminal after sending to the destination terminal And positioning means based on the data of the current position of the terminal detected, it calculates the merging position of the terminal itself and the destination terminal. Next, the control means causes the map data for arranging the merge position and the current position sent from the partner terminal and the current position of the terminal detected by the positioning means to be read from a predetermined storage medium, The merge position, the current position of the partner terminal, the current position data of the terminal itself, and the map data are distributed as navigation information to the partner terminal. At the same time, the control means, an image arranging the current position on the map of the current position and the own terminal of the merge position and the destination terminal, Ru is displayed on the screen of the display unit. Thereby, the portable communication terminal of this invention solves the subject mentioned above.

The mobile communication terminal of the present invention, can display an input means for acquiring an instruction input from the user, a signal transmitting and receiving means for transmitting and receiving signals, a positioning means for detecting the current position of the terminal, the images display means having a screen similar, and a control means for controlling the operation of the display means signal transmitting and receiving means and the positioning means. Then, when transmitting a navigation request mail indicating a navigation start request addressed to a user-desired partner terminal , the control means sends navigation information for joining with the partner terminal in response to a predetermined instruction input from the user . When the destination terminal executes generation and distribution, trigger information is inserted into the navigation request email and sent, and then when the navigation acceptance email indicating acceptance of the navigation start request is received from the destination terminal , the navigation acceptance email After detecting whether or not trigger information for executing the display of navigation information for merging with the partner terminal is executed at the own terminal, and detecting the trigger information , navigation start guidance from the partner terminal When the information is received, the current position is detected by the positioning means. Together to start to transmit the data of the current position of the terminal to which the positioning means detects the destination terminal. Thereafter, the control means sends the current position of the destination terminal, the current position of the own terminal, the merge position of the own terminal and the destination terminal, and the map in which each position is arranged, sent from the destination terminal. when the data and is received, an image of arranging the current position and the current position and the merging position of the terminal of the other party terminal over the serial map, Ru onto the screen. Thereby, the portable communication terminal of this invention solves the subject mentioned above.

The navigation system of the present invention includes at least two portable communication terminals each having a function capable of detecting the current position of the terminal, an e-mail transmission / reception function, and an image display function. mobile communication terminal is a navigation system having a function of transmitting the navigation information to the other mobile communication terminal with the ability to store map data. When the other mobile communication terminal transmits a navigation request mail indicating a navigation start request addressed to one mobile communication terminal, the other mobile communication terminal joins with the one mobile communication terminal in response to a predetermined instruction input from the user. The trigger information when the one mobile communication terminal executes the generation and distribution of the navigation information is inserted into the navigation request mail and transmitted. One mobile communication terminal receives the navigation request mail, detects whether or not trigger information is inserted in the navigation request mail, and when detecting the trigger information , according to a predetermined instruction input from the user, navigation acceptance mail indicating the acceptance of navigation start request, insert the trigger information when the display of the navigation information for merging the own terminal and the other mobile communication terminal to perform navigation consent the trigger information is inserted After returning the mail to the other mobile communication terminal, the navigation start guidance information is transmitted to the other mobile communication terminal. In addition, after receiving the navigation start guidance from the one mobile communication terminal, the other mobile communication terminal starts the operation of detecting the current position of the own terminal, and the detected data of the current position of the own terminal is Send to mobile communication terminal. Furthermore, one of the mobile communication terminal, the data of the current position detected by the said other of the portable communication terminal or we sent come current position and the own terminal after transmitting the information of the navigation start guidance to the other mobile communication terminal Originally, the merge position of the own terminal and the other mobile communication terminal is calculated, the data of the merge position, the current position of the own terminal and the current position of the other mobile communication terminal, and a map for arranging these positions Data is transmitted as navigation information to the other mobile communication terminal, and an image in which the merge position, the current position of the own terminal, and the current position of the other mobile communication terminal are arranged on a map is displayed on the screen. In addition, when the other mobile communication terminal receives the navigation information sent from one mobile communication terminal, an image in which the merge position, the current position of the one mobile communication terminal, and the current position of the own terminal are arranged on a map. the that displays on the screen. Thereby, the navigation system of this invention solves the subject mentioned above.

That is, according to the present invention, navigation merging position of the two mobile communication terminals, a navigation request mail and navigation accept mail between their portable communication terminal is started as a trigger that is transmitted and received.

In the present invention, navigation merging position of the two mobile communication terminals, since the navigation request mail and navigation accept mail between their portable communication terminal is started as a trigger that is transmitted and received, particularly complicated, such as user registration In addition, since an existing e-mail transmission / reception network can be diverted, a new network construction or a new data format is unnecessary. Thus, according to the present invention, a user of the two mobile communication terminals, it is possible to navigate to the best confluence place.

  Hereinafter, an embodiment of a mobile communication terminal, a navigation information distribution device, and a navigation system including the same will be described with reference to the drawings.

  In the present embodiment, a mobile phone terminal and a system thereof are cited as application examples of the mobile communication terminal, the navigation information distribution device, and the navigation system including them according to the present invention.

  Of course, the content described here is merely an example, and it goes without saying that the present invention is not limited to this example.

  As shown in FIG. 1, the navigation system according to the embodiment of the present invention has a mobile phone terminal user 1 and another mobile phone terminal user 2 that exist in a place with a relatively long distance. For example, a desired navigation request mail from one of the mobile phone terminals to the other mobile phone terminal is desired to join at the intermediate point that is the shortest distance (hereinafter referred to as intermediate point 3 or intermediate point PC as appropriate). When the mobile phone terminal is transmitted, the navigation request mail is used as a trigger for navigation to join the users 1 and 2 of the mobile phone terminals at the intermediate point 3 (PC) (hereinafter referred to as intermediate point navigation). Is started.

  In the navigation system of the present embodiment, when the intermediate point navigation is started, as shown in FIG. 1, the intermediate point 3 (PC), that is, the junction point, and the current positions PA and PB of each mobile phone terminal Is displayed on the screen of the display 4 of the mobile phone terminal while the mobile phone terminal is updated as needed (for example, updated at regular time intervals of several seconds to several tens of seconds). The The example of FIG. 1 shows a state where characters representing the current positions PA and PB of the users 1 and 2 of each mobile phone terminal are displayed on the screen of the display 4.

  Thereby, according to the navigation system of this embodiment, the users 1 and 2 of each mobile phone terminal can reach the intermediate point 3 (PC) easily and surely without being lost or spending extra time, for example. It becomes like this.

  Hereinafter, the navigation system of this embodiment for allowing two users each having a mobile phone terminal to join at the intermediate point between them, and the mobile phone of this embodiment used in the navigation system Specific configurations and processes of the telephone terminal and the navigation information distribution device will be described.

[Schematic Configuration of Navigation System of First Embodiment]
FIG. 2 shows an overall schematic configuration example of the navigation system according to the first embodiment of the present invention.

  The navigation system of the first embodiment is configured to include at least a plurality of mobile phone terminals, a mobile phone network 6 and its base station 7, and a server 5 as an intermediate point navigation information distribution device.

  Although there are actually a plurality of base stations of the mobile phone system, only one base station 7 is shown in the example of FIG. In the example of FIG. 2, only two mobile phone terminals 8 and 9 are given as an example. However, the number of mobile phone terminals on which intermediate point navigation is performed is not limited to two, and three or more mobile phones. Intermediate point navigation for the terminal is also included in the present invention.

  The mobile phone network 6 and the base station 7 are included in a mobile phone system including a so-called radio access network (RAN), a core network (CN), etc., and the phone numbers of the mobile phone terminals 8 and 9 connected via the base station 7 , Device ID, subscriber (user) and the like can be specified.

  The server 5 has a mail management function for managing transmission / reception of electronic mail via a mobile phone terminal system or the Internet (not shown), a function for managing identification information of the mobile telephone terminals 8 and 9 performing transmission / reception of electronic mail, The navigation management function for merging the users of the mobile phone terminals 8 and 9 at those intermediate points, for example, and the map data storage function for storing the map data used for the intermediate point navigation are provided at least.

  In particular, the server 5 in the case of the embodiment of the present invention, when a predetermined navigation request mail is transmitted from one of the mobile phone terminals 8 and 9 to the other and a consent mail for the navigation request mail is returned. Then, using the transmission / reception of the mail as a trigger, the calculation for obtaining the intermediate point of the mobile phone terminals 8 and 9 is performed, and further, the intermediate point (junction point) and the current position of each mobile phone terminal 8 and 9 are indicated. A navigation management function for transmitting each position data and map data for displaying each position to the mobile phone terminals 8 and 9 is provided.

  Here, the predetermined navigation request mail and the navigation consent mail include information serving as a trigger for starting the navigation at the intermediate point, and the server 5 includes the mail transmitted / received between the mobile phone terminals. When it is detected that the trigger information is included, the above-described process for intermediate point navigation is started.

  The trigger information for the server 5 to start the intermediate point navigation is, for example, a predetermined character string arranged in the mail body or subject, predetermined data included in the mail header, or attached to the mail. Examples include predetermined file data. Of course, these are examples of trigger information, and the present invention is not limited to these.

  The mobile phone terminals 8 and 9 are mobile phone terminals of each subscriber of the mobile phone system, and display a call function, an e-mail creation and transmission / reception function, a still image shooting function with a built-in camera, a moving image shooting function, and those images. It has the same functions as a normal mobile phone terminal, such as a viewer function displayed on the screen, a voice recording function, and a music playback function.

  In addition, the mobile phone terminals 8 and 9 of the present embodiment can create and transmit a predetermined navigation request mail and a navigation approval mail that serve as a start trigger for intermediate point navigation by the above-described e-mail creation and transmission / reception function. .

  Note that the predetermined navigation request mail and navigation consent mail may be created by the user of the mobile phone terminal, or may be automatically created inside the mobile phone terminal. In addition, the trigger information arranged in the predetermined navigation request mail and the navigation consent mail may be directly input by the user of the mobile phone terminal or may be automatically created inside the mobile phone terminal.

  As an example, when the navigation request mail and the navigation consent mail are created by the user and the trigger information is automatically generated inside the mobile phone terminal, first, the user of one of the mobile phone terminals is the destination mobile phone terminal For example, after creating a navigation request email consisting of a text indicating that the user wants to join at the intermediate point together with the designation of the email address of the intermediate point, when the start instruction of the intermediate point navigation and the transmission instruction of the email are input, the mobile phone terminal The trigger information is automatically inserted into the navigation request mail and transmitted to the destination mobile phone terminal.

  On the other hand, the user on the mobile phone terminal receiving the navigation request mail creates a navigation consent mail as a reply mail to the navigation request mail, and then inputs an acceptance instruction for intermediate point navigation and an instruction to send the mail Then, the mobile phone terminal automatically inserts the trigger information in the navigation approval mail and returns it to the counterpart mobile phone terminal.

  In addition to the various functions described above, the mobile phone terminals 8 and 9 of the present embodiment have a positioning function for measuring the current position by so-called GPS, and a function for transmitting data on the current position measured by the positioning function. And a function for displaying a map on the display screen and displaying at least the current position of the terminal on the map.

  In particular, the mobile phone terminals 8 and 9 of the present embodiment transmit the current position data (latitude and longitude information) measured by the GPS of the positioning function to the server 5 when the intermediate point navigation is being executed, On the other hand, a map image sent from the server 5 including the current position of the own terminal, the current position of the counterpart terminal, and their intermediate point is displayed on the display screen.

[Schematic internal configuration of server]
Next, FIG. 3 shows a schematic internal configuration example of the server 5 according to the first embodiment of the present invention.

  Note that the configuration of FIG. 3 shows only the components necessary for performing intermediate point navigation, and the other configurations are not shown.

  In the server 5 shown in FIG. 3, the network interface unit 15 is an interface unit for connection to the mobile phone network 6 or the Internet.

  The mail management unit 13 manages transmission / reception of electronic mail via a mobile phone terminal system or the Internet (not shown) under the control of the control unit 10.

  In particular, in the case of the present embodiment, the mail management unit 13 monitors whether or not a predetermined navigation request mail and a navigation approval mail corresponding to the predetermined navigation request mail have been transmitted and received, for example, one of the mobile phone terminals 8 and 9. When it is detected that the predetermined navigation request mail is sent to the other and the navigation consent mail is replied to the other, the navigation request mail and the navigation consent mail are detected, and the navigation request Identification information of the mobile phone terminal that is the sender of the mail (that is, information for identifying the mobile phone terminal such as an e-mail address or device ID, which will be referred to as a terminal ID in this embodiment). The navigation request mail The terminal ID of the sender of the mobile-phone terminal of the recipient a is and navigation accept mail, and notifies the control unit 10.

  The terminal ID management unit 11 holds the terminal IDs of the mobile phone terminals sent from the mail management unit 13 via the control unit 10 in an identifiable state under the control of the control unit 10.

  The map data storage unit 14 stores at least map data on a scale that can realize navigation for pedestrians when the user of the mobile phone terminal walks to a desired destination by walking or the like. Original, the map data is read out.

  When the mail management unit 13 detects the transmission / reception of the navigation request mail and the navigation consent mail, the navigation management unit 12 starts navigation at the intermediate point using the detected data as a trigger, and the mobile phone terminal that is the transmission source of the navigation request mail The current position data and the current position data of the mobile phone terminal to which the navigation request mail is received are used to perform an operation for obtaining an intermediate point between them.

  The control unit 10 controls each unit necessary for transmission / reception of e-mails and intermediate point navigation. In particular, when the intermediate point navigation is performed, the control unit 10 displays the intermediate point (junction point) calculated by the navigation management unit 12 and the map data for displaying the current positions of the mobile phone terminals 8 and 9. The data is read from the map data storage unit 14 and the intermediate point and the current position data of each mobile phone terminal 8 and 9 and the map data are transmitted to the mobile phone terminals 8 and 9 via the network interface unit 15.

[Schematic internal structure of mobile phone terminal]
Next, FIG. 4 shows a schematic internal configuration of the mobile phone terminal according to the first embodiment of the present invention.

  The communication antenna 23 is a built-in antenna, for example, and transmits and receives signal radio waves for telephone calls and packet communications.

  The communication circuit 22 performs frequency conversion, modulation, demodulation, and the like of transmission / reception signals.

  Note that data transmitted and received by packet communication is e-mail, image data, program data, and other various data. In particular, in the present embodiment, when the midpoint navigation of the mobile phone terminals 8 and 9 is being executed, the current location data of the own terminal measured by the GPS function of the mobile phone terminals 8 and 9 is the packet communication. In addition, the map data from the server 5, the current positions of the mobile phone terminals 8 and 9 displayed on the map, the data of their intermediate points, and the like are also transmitted and received by the packet communication. Will be.

  The voice data received via the communication antenna 23 and the communication circuit 22 is sent to the control unit 21 via the data line.

  The control unit 21 includes a CPU (central processing unit), decodes the call voice data, and sends the decoded voice data to the speaker 31 via the data line.

  The speaker 31 includes a digital / analog converter (not shown) and an amplifier. The speaker 31 digitally / analog converts and amplifies the voice data, and outputs it. Thereby, a call voice is obtained.

  The speaker 31 also includes a ringtone speaker that outputs a ringtone and music data after digital / analog conversion and amplification.

  The microphone 32 is a microphone for transmission, and includes an analog / digital converter and an amplifier.

  The call voice signal input through the microphone 32 is amplified to a predetermined level by an amplifier (not shown), and then converted into digital voice data by an analog / digital converter (not shown). After being sent to 21 and encoded, it is sent to the communication circuit 22, where it undergoes various processing such as modulation and frequency conversion, and is transmitted from the communication antenna 23.

  The display unit 24 includes a display device such as a liquid crystal display and a display drive circuit for the display device, and displays an image or the like on the display. In particular, in the mobile phone terminal of the present embodiment, when intermediate point navigation is performed, at least the map, the current position of the mobile phone terminals 8 and 9 and the intermediate points thereof are displayed on the display of the display unit 24. The position and the like are displayed.

  The operation unit 25 includes keys such as a numeric keypad, an utterance key, a clear key, an end / power key, a manner key, and a memo key provided on a casing (not shown) of the mobile phone terminal according to the present embodiment, a jog dial, or a cross. It has a key and an operation signal generator for generating an operation signal according to the operation of each key.

  The clock unit 26 includes, for example, a clock function that generates time information such as year / month / date / time, a timer function that measures time, a calendar function, a function that sets a user's desired date / time, and the like.

  The audio processing unit 33 performs reproduction processing such as decompression decoding of music data that has been compression-encoded, and also performs processing to output audio and music data obtained by the reproduction processing to the speaker 31.

  The image processing unit 34 performs processing such as generation of images and video data displayed on the display screen of the display unit 24.

  The GPS control unit 35 receives a radio wave transmitted from a geodetic satellite in the GPS via the GPS antenna 36, and obtains the latitude and longitude of the current position of the terminal based on the received radio wave.

  GPS is a system that knows the position (longitude / latitude) of the receiving terminal on the earth by receiving radio waves transmitted by 24 geodetic satellites (NAVSTAR) launched by the US Department of Defense. is there.

  A GPS signal (information indicating latitude and longitude) received by the GPS control unit 25 via the GPS antenna 26 is sent to the control unit 11.

  The memory 27 includes a ROM (Read Only Memory) and a RAM (Random Access Memory).

  The ROM is a so-called OS (Operating System), a control program for the control unit 21 to control each unit, various initial setting values, font data, and an application for executing each process related to the intermediate point navigation in this embodiment. Stores program codes, application program codes for performing various processing on images, program codes for various applications installed in mobile phone terminals, identification information (terminal ID) of the mobile phone terminals, etc. is doing. This ROM includes a rewritable ROM such as an EEPROM (Electrically Erasable Programmable Read-Only Memory), e-mail data, a telephone directory or e-mail address set by the user, photo image data, downloaded photo data, It is also possible to store ringtone data, music data, character data, prediction candidate dictionaries used for prediction conversion, and other various user setting values.

  The RAM stores data as needed as a work area when the control unit 21 performs various data processing.

  In addition to the above-described encoding and decoding of the call voice data, the control unit 21 controls the voice processing unit 33 and the image processing unit 34 as well as the control of the voice processing unit 33 and the image processing unit 34 in addition to the control of outgoing / incoming calls and the incoming call Control of each component of the mobile phone terminal and various arithmetic processes are performed.

  In addition, the control unit 21 executes each program in the memory 27. In particular, in the case of the present embodiment, the control unit 21 executes the navigation application program stored in the memory 27 to realize intermediate point navigation.

  In addition, although not shown in FIG. 4, the mobile phone terminal according to the present embodiment includes a browser function for browsing Internet web pages, an external cable connector, an optical lens, an image sensor, and the like. A camera unit that captures a still image or a moving image under the control of the unit 21, such as a vibrator having a weight at a position eccentric with respect to the rotation axis of the motor, an incoming LED, an auxiliary light LED for camera shooting, and a display LED for backlight of unit 24, LED for illumination of each key and drive circuit of each LED, non-contact IC card used as so-called electronic wallet and antenna for proximity communication, for example, a battery which is a detachable secondary battery, A power management IC for supplying power from the battery to each unit is provided.

  Note that other configurations normally provided in the mobile phone terminal are omitted.

[Operation flowchart for navigation at the intermediate point on the mobile phone terminal side on the navigation request mail transmission side]
Next, the flow of processing when the control unit 21 of the mobile phone terminal according to the first embodiment of the present invention is executing an application program for waypoint navigation will be described using the flowchart shown in FIG.

  5 is a mobile phone terminal (hereinafter referred to as a mobile phone terminal A) that transmits a predetermined navigation request mail to a destination mobile phone terminal (hereinafter referred to as a mobile phone terminal B). Shows the flow of processing.

  In FIG. 5, execution of the application program for waypoint navigation is started, and the waypoint navigation is performed between the own terminal (mobile phone terminal A) and the mobile phone terminal (mobile phone terminal B) of the other party. When the user of the mobile phone terminal A gives an input instruction via the operation unit 25, the control unit 21 first sends a predetermined navigation request mail addressed to the mobile phone terminal B to the communication circuit 22 and the communication antenna as processing of step S11. 23 to transmit.

  In this step S11, in the case where the user creates a navigation request mail and trigger information is automatically generated and inserted into the navigation request mail, the user receives the mail of the destination mobile phone terminal B. When an address is specified and an email composed of a text indicating that the user wants to join at the intermediate point is created, and the start instruction of the intermediate point navigation and the transmission instruction of the mail are input, the control unit 21 The trigger information is automatically inserted into the transmission circuit 22 and transmitted from the communication circuit 22 and the communication antenna 23. After the process of step S11, the control unit 21 advances the process to step S12.

  When the processing proceeds to step S12, the control unit 21 receives a navigation notification mail from the destination mobile phone terminal B and then receives a guidance notification from the server 5 to start navigation at the intermediate point. The process proceeds to step S13 when waiting for the vehicle to come and when the start guidance notification for the intermediate point navigation is received.

  On the other hand, if the intermediate point navigation start guidance notification from the server is not sent within a predetermined waiting time by the time count of the clock unit 26 in step S12, or the intermediate point navigation cannot be executed from the server 5. When a notification to that effect is sent, or when an e-mail notifying that the navigation request is not accepted is returned from the mobile phone terminal B, the control unit 21 ends the processing of the flowchart of FIG. To do.

  In step S12, when the intermediate point navigation start guidance notification is received and the process proceeds to step S13, the control unit 21 starts the operation of the GPS control unit 35, and uses the GPS function of the terminal (mobile phone). The latitude / longitude information of the current position of the terminal A) is acquired. After the process of step S13, the control unit 21 advances the process to step S14.

  When the processing proceeds to step S14, the control unit 21 uses the communication circuit 22 and the communication antenna 23 to obtain the latitude and longitude information of the current position of the terminal (mobile phone terminal A) acquired by the GPS function in step S13. It is transmitted to the server 5. After the process of step S14, the control unit 21 advances the process to step S15.

  When the processing proceeds to step S15, the control unit 21 sends the current position PA of the own terminal (mobile phone terminal A) and the current position PB of the counterpart mobile phone terminal B sent from the server 5 and their intermediate points. The image data of the map including the PC is received. After the process of step S15, the control unit 21 advances the process to step S16.

  When the processing proceeds to step S16, the control unit 21 receives the current position PA of the own terminal (mobile phone terminal A) and the current position PB of the partner mobile phone terminal B received in step S15, and their intermediate point PC. As shown in FIG. 1 described above, a map image including is displayed on the display screen. After the process of step S16, the control unit 21 advances the process to step S17.

  When the processing proceeds to step S17, the control unit 21 determines whether or not a notification to end navigation at the intermediate point has been sent from the server 5, and has not received the end notification of the intermediate point navigation. When it is determined, the process returns to step S13, and when it is determined that the intermediate point navigation end notification is received, the process of the flowchart of FIG. 5 is ended.

[Operation flowchart during navigation at the intermediate point on the mobile phone terminal side of the navigation request mail]
Next, the flow of processing at the time of intermediate point navigation on the mobile phone terminal B side that receives the predetermined navigation request mail transmitted from the mobile phone terminal A will be described with reference to the flowchart of FIG.

  In FIG. 6, first, when the control unit 21 receives a predetermined navigation request mail from the mobile phone terminal A, for example, as the process of step S21 in the incoming call waiting state, the process proceeds to step S22.

  When the process proceeds to step S22, the control unit 21 determines whether or not the user has accepted the navigation request mail via the operation unit 25. When it is determined that the user has accepted, the process proceeds to step S23. On the other hand, when it is determined not to accept, the process of the flowchart of FIG. 6 is terminated.

  When the processing proceeds to step S <b> 23, the control unit 21 causes the navigation consent mail input by the user via the operation unit 25 to be returned to the counterpart mobile phone terminal A through the communication circuit 22 and the communication antenna 23.

  In this example, in the case where the user creates a navigation consent mail and trigger information is automatically generated and inserted into the navigation consent mail in step S23, the user can send information to the destination mobile phone terminal A. When a mail including a message indicating that the navigation for joining at the intermediate point is accepted together with the reply instruction is generated, and when the start instruction of the intermediate point navigation and the reply instruction for the mail are input, the control unit 21 The trigger information is automatically inserted into the navigation consent mail and transmitted from the communication circuit 22 and the communication antenna 23. After the process of step S23, the control unit 21 advances the process to step S24.

  When the processing proceeds to step S24, the control unit 21 waits for a guidance notification to start navigation at the intermediate point from the server 5, and when receiving the guidance for starting the intermediate point navigation, step S25. Proceed to the process.

  On the other hand, in this step S24, when the intermediate point navigation start guidance notification is not sent within a predetermined waiting time, or when the notification that the intermediate point navigation cannot be executed is sent from the server 5, the control is performed. The unit 21 ends the process of the flowchart of FIG.

  In step S24, when the intermediate point navigation start guidance notification is received and the process proceeds to step S25, the control unit 21 starts the operation of the GPS control unit 35, and the GPS function enables the terminal (mobile phone). The latitude / longitude information of the current position of the terminal B) is acquired. After the process of step S25, the control unit 21 advances the process to step S26.

  When the processing proceeds to step S26, the control unit 21 uses the communication circuit 22 and the communication antenna 23 to obtain the latitude and longitude information of the current position of the terminal (mobile phone terminal B) acquired by the GPS function in step S25. It is transmitted to the server 5. After the process of step S26, the control unit 21 advances the process to step S27.

  When the processing proceeds to step S27, the control unit 21 sends the current position PB of the own terminal (mobile phone terminal B) and the current position PA of the partner mobile phone terminal A sent from the server 5 and their intermediate points. The image data of the map including the PC is received. After the process of step S27, the control unit 21 advances the process to step S28.

  When the process proceeds to step S28, the control unit 21 receives the current position PB of the own terminal (mobile phone terminal B) and the current position PA of the counterpart mobile phone terminal A received in step S27, and their intermediate point PC. As shown in FIG. 1 described above, a map image including is displayed on the display screen. After the process of step S28, the control unit 21 advances the process to step S29.

  When the processing proceeds to step S29, the control unit 21 determines whether or not a notification to end navigation at the intermediate point has been sent from the server 5, and has not received the end notification of the intermediate point navigation. When it is determined, the process returns to step S25. On the other hand, when it is determined that the intermediate point navigation end notification is received, the process of the flowchart of FIG. 6 is ended.

[Operation flowchart of the server during navigation at intermediate points]
Next, the flow of processing when the server 5 of the first embodiment, which is the navigation information distribution apparatus of the present invention, executes the intermediate point navigation will be described with reference to the flowchart shown in FIG.

  In the flowchart of FIG. 7, the mobile phone terminal A transmits a predetermined navigation request mail to the mobile phone terminal B, and the mobile phone terminal B returns a navigation approval mail to the mobile phone terminal A correspondingly. The case is given as an example.

  In FIG. 7, the mail management unit 13 of the server 5 detects whether or not a navigation request mail has been transmitted from any of the mobile phone terminals as the process of step S <b> 31, and the navigation request mail has been transmitted. Sometimes the process proceeds to step S32.

  When the processing proceeds to step S32, the mail management unit 13 extracts the terminal ID of the mobile phone terminal A that is the transmission source and the terminal ID of the mobile phone terminal B that is the destination (reception destination) from the navigation request mail. The ID is transferred to the control unit 10. Then, the control unit 10 at this time causes the terminal ID management unit 11 to hold these terminal IDs. After the process in step S32, the process proceeds to step S33.

  When the process proceeds to step S33, the mail management unit 13 distributes the navigation request mail sent from the mobile phone terminal A to the mobile phone terminal B that is the destination through the control unit 10 and the network interface unit 15. Let After step S33, the process proceeds to step S34.

  In step S34, the mail management unit 13 determines whether or not a navigation consent mail has been transmitted as a reply to the navigation request mail from the mobile phone terminal B that is the delivery destination of the navigation request mail. If it is determined that the navigation consent mail has been transmitted, the process proceeds to the next step S35.

  On the other hand, in this step S34, for example, when the mail management unit 13 determines that the navigation consent mail has not been transmitted even after a predetermined time has passed, or a mail notifying that the navigation is not accepted is transmitted from the mobile phone terminal B. If the mail management unit 13 determines that the mobile phone terminal B has been used, or if the mobile phone terminal B is not compatible with the intermediate point navigation of the present embodiment or the mobile phone terminal B is out of service area and cannot communicate, If it is determined that navigation cannot be performed, the control unit 10 ends the process of the flowchart of FIG.

  In particular, when the intermediate point navigation cannot be executed, the control unit 10 notifies the mobile phone terminals A and B that the intermediate point navigation cannot be executed, and then ends the processing of the flowchart of FIG. May be.

  In step S34, when the mail management unit 13 detects the navigation acceptance mail from the mobile phone terminal B and proceeds to the process of step S35, the control unit 10 generates a navigation start guidance notification, and the navigation start guidance is generated. The notification is distributed to the mobile phone terminals A and B through the network interface unit 15. After the process of step S35, the process proceeds to step S36.

  When the process proceeds to step S36, the control unit 10 enters a reception waiting state for the latitude / longitude information transmitted from the mobile phone terminals A and B. When the latitude / longitude information is received, the control unit 10 sends the latitude / longitude information to the navigation management unit 12. Forward. After the process of step S36, the process proceeds to step S37.

  In step S37, the navigation management unit 12 uses the latitude and longitude information transmitted from the mobile phone terminals A and B, and the current positions PA and PB of the mobile phone terminals A and B, and the current positions PA. , PB midpoint PC is calculated. After the process of step S37, the process proceeds to step S38.

  When the processing proceeds to step S38, the navigation management unit 12 transfers the data of the current positions PA and PB of the mobile phone terminals A and B and the intermediate position PC obtained in step S37 to the control unit 10.

  The control unit 10 that has received these data reads out map data from the map data storage unit 14 that can display the current positions PA and PB of the mobile phone terminals A and B and their intermediate positions PC within the range. .

  Then, the control unit 10 transmits the map data, the data of the current positions PA and PB of the mobile phone terminals A and B, and the data of the intermediate position PC to the mobile phone terminals A and B through the network interface unit 15. After the process of step S38, the process proceeds to step S39.

  When the processing proceeds to step S39, the control unit 10 determines whether or not the current positions PA and PB of the mobile phone terminals A and B received from the navigation management unit 12 and their intermediate positions PC substantially match.

  That is, the control unit 10 determines whether or not the users of the mobile phone terminals A and B can join at the intermediate point.

  If it is determined in step S39 that the current positions PA and PB of the mobile phone terminals A and B and their intermediate positions PC substantially match, the process proceeds to step S40. The process returns to S36.

  In step S39, when it is determined that the current positions PA and PB of the mobile phone terminals A and B substantially coincide with the intermediate position PC and the process proceeds to step S40, the control unit 10 ends the intermediate point navigation. After the notification to the effect is transmitted to the mobile phone terminals A and B, the process of the flowchart of FIG.

[Communication sequence at the time of intermediate point navigation according to the first embodiment]
Next, in FIG. 8, the navigation request mail is transmitted from the mobile phone terminal A to the mobile phone terminal B, and the navigation consent mail is returned from the mobile phone terminal B, in the navigation system of the first embodiment. The communication sequence between each mobile phone terminal and the server is shown. FIG. 8 mainly shows a communication sequence between the server and the mobile phone terminal.

  In FIG. 8, when a navigation request mail is transmitted (T1) from the mobile phone terminal A to the mobile phone terminal B, the server uses the navigation request mail to send the mobile phone terminal A and the destination mobile phone. The terminal ID of terminal B is extracted, and these terminal IDs are held (T2).

  The server that has received the navigation request mail addressed from the mobile phone terminal A to the mobile phone terminal B delivers the navigation request mail to the mobile phone terminal B (T3).

  Next, when the navigation consent mail is returned from the mobile phone terminal B to the mobile phone terminal A (T4), the server delivers a navigation start guidance notification to the mobile phone terminals A and B (T5, T6).

  Next, when the latitude / longitude information indicating the current position is transmitted from the mobile phone terminals A and B to the server (T7, T8), the server stores the current positions PA, PB of the mobile phone terminals A, B. The intermediate point PC is calculated (T9).

  Then, the server transmits the current positions PA and PB of the mobile phone terminals A and B, the intermediate point PC, and map data including these positions to the mobile phone terminals A and B (T10, T11).

  At this time, the server determines whether or not the current positions PA and PB of the mobile phone terminals A and B and the intermediate point PC match, and if they do not match (T12), from the mobile phone terminals A and B Returning to the reception state of the latitude / longitude information of the mobile phone terminal, on the other hand, when they match (T13), the mobile phone terminals A and B are notified of the end of navigation (T14, T15).

[Summary of First Embodiment]
According to the navigation system of the first embodiment described above, the users of the mobile phone terminals A and B can receive the navigation service to the intermediate point of each other only by transmitting and receiving the navigation request mail and the navigation consent mail.

  In addition, according to the navigation system of the first embodiment, the intermediate point navigation is started by using only the navigation request mail and the navigation approval mail transmitted / received between the mobile phone terminals A and B as triggers. A complicated procedure such as simple user registration is unnecessary, and a new network and a new data format for configuring the system are also unnecessary.

  In the above-described embodiment, an example of navigating an intermediate point between two mobile phone terminals is given. However, the present invention is also applicable to navigating intermediate points between three or more mobile phone terminals. Is possible.

  In the present embodiment, an intermediate point is given as an example of a user meeting place. However, in the present invention, for example, navigation to “a restaurant closest to each user” or “a station closest to each user” is performed. Applicable. That is, in this case, the server may search for “the restaurant closest to each user” and “the station closest to each user” instead of the above-described intermediate point from the current position of each user's mobile phone terminal.

[Schematic Configuration of Navigation System of Second Embodiment]
In the navigation system of the first embodiment described above, the server obtains the intermediate point of the mobile phone terminals A and B, and the server sends the data of the current positions PA and PB and the intermediate point together with the map data to the mobile phone terminals A and B. Although an example of transmitting to B has been given, the present invention may also be used in the case where intermediate point navigation is performed between two mobile phone terminals without using a server, as in the navigation system of the second embodiment described below. included.

  Note that the navigation system in the case of the second embodiment is configured not to include the server 5 of FIG.

  In the case of the navigation system of the second embodiment, at least one mobile phone terminal among the plurality of mobile phone terminals involved in the intermediate point navigation is the same as that performed by the server in the control unit 21. It is possible to calculate points. The mobile phone terminal also includes an interface for exchanging signals with a large-capacity external memory storing map data, for example, and can search the map data stored in the large-capacity external memory. Has been made.

  That is, in the navigation system of the second embodiment, a mobile phone terminal equipped with a large-capacity external memory interface is sent back from a predetermined navigation request mail sent by itself and a counterpart mobile phone terminal corresponding thereto. Triggered by an incoming navigation consent email, or as a trigger by a predetermined navigation request email sent from the destination mobile phone terminal and a corresponding navigation approval email sent back to the destination mobile phone terminal correspondingly, A function for calculating the intermediate point between the own terminal and the mobile phone terminal of the other party, further each position data indicating the current position of the intermediate point and each mobile phone terminal, and for displaying each position A function to send map data to the other mobile phone terminal. It has even without.

[Schematic internal configuration of mobile phone terminal with external memory interface]
FIG. 9 shows a schematic internal configuration of the mobile phone terminal according to the second embodiment of the present invention.

  In the mobile phone terminal of the second embodiment shown in FIG. 9, the same reference numerals are given to the same components as those of the mobile phone terminal of FIG. 4 of the first embodiment described above, and their details The detailed description is omitted.

  The mobile phone terminal of the second embodiment shown in FIG. 9 includes an external memory interface (I / F) unit 37. The external memory interface unit 37 performs writing / reading of data to / from the external memory, for example, when a detachable external memory is loaded in a memory slot (not shown) of the mobile phone terminal of the present embodiment.

  Here, in the present embodiment, in particular, a large-capacity external memory storing map data is detachably attached to the external memory interface unit 37, and the control unit 21 is connected via the external memory interface unit 37. Thus, the map data can be read from the large-capacity external memory.

  In the second embodiment, when the control unit 21 transmits a predetermined navigation request mail from its own terminal, the control unit 21 monitors whether or not a navigation consent mail has been returned from the destination mobile phone terminal. If a navigation consent mail is returned from the other party's mobile phone terminal, it will be used as a trigger to start the intermediate point navigation, and the current location data measured by the terminal and the destination of the navigation request mail (navigation) Using the current position data sent from the mobile phone terminal of the reply mail of the acceptance mail), the calculation for obtaining the intermediate point is performed, and further, the intermediate point (confluence point) and each mobile phone terminal Map data for displaying the current position is sent via the external memory interface unit 37. Read from capacity external memory, those waypoints and the current position and the map data of each cellular phone terminal, via the communication circuit 22 and communication antenna 23 to the recipient's mobile phone terminal.

  At the same time, the control unit 21 displays the intermediate point and the current position of each mobile phone terminal and a map including them on the display screen of the display unit 24 of the terminal itself.

  On the other hand, in the second embodiment, when the control unit 21 receives a predetermined navigation request mail from the counterpart mobile phone terminal and further responds with a navigation consent mail from the own terminal side, Using that as a trigger, start the intermediate point navigation, and the current position data measured by the terminal itself and the current position data sent from the mobile phone terminal of the navigation request mail sender (the reply address of the navigation consent mail) The map data for displaying the intermediate point (confluence point) and the current position of each mobile phone terminal is obtained via the external memory interface unit 37. Read from external memory, current location of each intermediate point and each mobile phone terminal and map data , Via the communication circuit 22 and communication antenna 23 to the recipient's mobile phone terminal.

  At the same time, the control unit 21 displays the intermediate point and the current position of each mobile phone terminal and a map including them on the display screen of the display unit 24 of the terminal itself.

  In the case of the second embodiment, the navigation request mail does not necessarily include special trigger information as in the case of the first embodiment. That is, when the mobile phone terminal according to the second embodiment sends a navigation request mail, the mobile phone terminal starts the intermediate point navigation triggered by the reception of the navigation consent mail as a reply, When a navigation request mail is received from the other party's mobile phone terminal, the intermediate point navigation is started with a reply of a corresponding navigation consent mail as a trigger.

[In the second embodiment, a flow chart of navigation point navigation on the mobile phone terminal side that performs navigation point mail transmission and intermediate point calculation]
Next, in the second embodiment of the present invention, the processing when the control unit 21 of the mobile phone terminal on the side that performs the transmission of the navigation request mail and the intermediate point calculation is executing the application program for intermediate point navigation A flow is demonstrated using the flowchart shown in FIG.

  The flowchart of FIG. 10 shows the flow of processing when a navigation request mail is transmitted from the own terminal (mobile phone terminal A) side and a navigation consent mail is received from the counterpart mobile phone terminal B.

  In FIG. 10, execution of the application program for intermediate point navigation is started, and intermediate point navigation is performed between the own terminal (mobile phone terminal A) and the destination mobile phone terminal (mobile phone terminal B). When the user of the mobile phone terminal A inputs via the operation unit 25, the control unit 21 first sends a predetermined navigation request mail addressed to the counterpart mobile phone terminal B as the process of step S51, and the communication circuit 22 and Transmission is performed from the communication antenna 23. After the process of step S51, the control unit 21 advances the process to step S52.

  When the processing proceeds to step S52, the control unit 21 determines whether or not the navigation consent mail is returned from the destination mobile phone terminal B, and the navigation consent mail is not sent within a predetermined waiting time, for example. In this case, or when an email refusing navigation is transmitted from the partner mobile phone terminal B, the processing of the flowchart of FIG.

  As an example, a mail that rejects navigation can be determined by detecting the presence or absence of the flag on the mobile phone terminal A side, including a flag indicating that the other mobile phone terminal B rejects the mail. it can.

  In step S52, when the reply of the navigation consent mail is detected and the process proceeds to step S53, the control unit 21 generates a navigation start guidance notification, and the navigation start guidance notification is transmitted to the communication circuit 22 and the communication antenna 23. To the mobile phone terminal B. After the process of step S53, the process proceeds to step S54.

  When the processing proceeds to step S53, the control unit 21 starts the operation of the GPS control unit 35, and acquires latitude and longitude information of the current position of the own terminal (mobile phone terminal A) by the GPS function. After the process of step S54, the control unit 21 advances the process to step S55.

  When the process proceeds to step S55, the control unit 21 enters a reception waiting state for the latitude / longitude information transmitted from the mobile phone terminal B. When the latitude / longitude information is received from the mobile phone terminal B, the process proceeds to step S56. .

  When the processing proceeds to step S56, the control unit 21 uses the latitude / longitude information of the own terminal obtained in the previous step S54 and the latitude / longitude information received from the mobile phone terminal B in step S55 to , B, and an intermediate point PC between the current positions PA and PB. After the process of step S56, the control unit 21 advances the process to step S57.

  When the process proceeds to step S57, the control unit 21 can display the current positions PA and PB of the mobile phone terminals A and B and their intermediate positions PC obtained in the previous step S56 within the range. Data is read from the external memory through the external memory interface unit 37.

  Further, the control unit 21 transmits the map data, the data of the current positions PA and PB of the mobile phone terminals A and B, and the data of the intermediate position PC to the mobile phone terminal B through the communication circuit 22 and the communication antenna 23. After the process of step S57, the control unit 21 advances the process to step S58.

  When the processing proceeds to step S58, the control unit 21 calculates the current position PA of the own terminal (mobile phone terminal A) and the current position PB of the destination mobile phone terminal B calculated in step S56 and their intermediate point PC. As shown in FIG. 1 described above, a map image including is displayed on the display screen. After the process of step S58, the control unit 21 advances the process to step S59.

  When the processing proceeds to step S59, the control unit 21 determines whether or not the current positions PA and PB of the mobile phone terminals A and B substantially match their intermediate positions PC. That is, the control unit 21 determines whether or not the users of the mobile phone terminals A and B can join at the intermediate point.

  In step S59, when it is determined that the current positions PA and PB of the mobile phone terminals A and B substantially coincide with the intermediate position PC, the control unit 21 advances the process to step S60, while matching. When it determines with there being no, the control part 21 returns a process to step S54.

  In step S59, when it is determined that the current positions PA and PB of the mobile phone terminals A and B substantially match their intermediate positions PC and the process proceeds to step S60, the control unit 21 ends the intermediate point navigation. After the notification to the effect is transmitted to the mobile phone terminal B, the process of the flowchart of FIG.

[In the second embodiment, the operation flowchart at the time of intermediate point navigation of the mobile phone terminal that receives the navigation request mail from the mobile phone terminal that performs the intermediate point calculation]
Next, in the second embodiment, the flow of processing during navigation at the intermediate point on the mobile phone terminal B side that receives a predetermined navigation request mail transmitted from the mobile phone terminal A on the intermediate point calculation side. This will be described with reference to the flowchart shown in FIG.

  In FIG. 11, first, when the control unit 21 receives a predetermined navigation request mail from the mobile phone terminal A as the process of step S <b> 71 in the incoming call waiting state, for example, the process proceeds to step S <b> 72.

  When the processing proceeds to step S72, the control unit 21 determines whether or not the user has accepted the navigation request mail via the operation unit 25. When it is determined that the user has accepted, the processing proceeds to step S73. On the other hand, when it is determined not to accept, the process of the flowchart of FIG. 11 is terminated.

  In this step S72, when a mail indicating that navigation is rejected is returned, the control unit 21 includes a flag indicating that navigation is rejected and transmits the flag to the mobile phone terminal A.

  When the processing proceeds to step S <b> 73, the control unit 21 causes the navigation consent mail input by the user via the operation unit 25 to be returned to the counterpart mobile phone terminal A through the communication circuit 22 and the communication antenna 23. After the process of step S73, the control unit 21 advances the process to step S74.

  Proceeding to the process of step S74, the control unit 21 waits for a guidance notification to start navigation at the intermediate point from the mobile phone terminal A, and when receiving the guidance for starting the intermediate point navigation. The process proceeds to step S75.

  On the other hand, in this step S74, when the intermediate point navigation start guidance notification is not sent within a predetermined waiting time, for example, the control unit 21 ends the processing of the flowchart of FIG.

  In step S74, when the intermediate point navigation start guidance notification is received and the process proceeds to step S75, the control unit 21 starts the operation of the GPS control unit 35, and uses the GPS function of the terminal (mobile phone). The latitude / longitude information of the current position of the terminal B) is acquired. After the process of step S75, the control unit 21 advances the process to step S76.

  When the processing proceeds to step S76, the control unit 21 obtains the latitude / longitude information of the current position of the terminal (mobile phone terminal B) acquired by the GPS function in step S75 via the communication circuit 22 and the communication antenna 23. Transmit to mobile phone terminal A. After the process of step S76, the control unit 21 advances the process to step S77.

  When the processing proceeds to step S77, the control unit 21 sends the current position PB of the terminal (mobile phone terminal B) and the current position PA of the mobile phone terminal A sent from the mobile phone terminal A, and their intermediate points. The image data of the map including the PC is received. After the process of step S77, the control unit 21 advances the process to step S78.

  When the process proceeds to step S78, the control unit 21 receives the current position PB of the own terminal (mobile phone terminal B) and the current position PA of the partner mobile phone terminal A received in step S77, and their intermediate point PC. As shown in FIG. 1 described above, a map image including is displayed on the display screen. After the process of step S78, the control unit 21 advances the process to step S79.

  When the processing proceeds to step S79, the control unit 21 determines whether or not a notification to end the navigation at the intermediate point has been sent from the mobile phone terminal A, and has received the end notification of the intermediate point navigation. If it is determined that there is not, the process returns to step S75. On the other hand, if the intermediate point navigation end notification is received, the process of the flowchart of FIG. 11 ends.

[Communication sequence at the time of intermediate point navigation in the examples of FIGS. 10 and 11]
Next, FIG. 12 shows a second case where the navigation request mail is transmitted from the mobile phone terminal A that performs the midpoint calculation to the mobile phone terminal B, and the navigation approval mail is returned from the mobile phone terminal B. The communication sequence between each mobile telephone terminal in the navigation system of embodiment is shown.

  In FIG. 12, when a navigation request mail is transmitted from the mobile phone terminal A to the mobile phone terminal B (T21), and a corresponding navigation approval mail is returned from the mobile phone terminal B (T22), the mobile phone Terminal A transmits a navigation start guidance notification to mobile phone terminal B (T23).

  Next, when the mobile phone terminal A receives the latitude / longitude information indicating the current position from the mobile phone terminal B (T24), the current position PA, PB of the own terminal (mobile phone terminal A) and the destination mobile phone terminal B From this, the intermediate point PC is calculated (T25).

  Then, the mobile phone terminal A transmits the current positions PA and PB of the mobile phone terminals A and B, the intermediate point PC, and map data including them to the mobile phone terminal B (T26).

  At this time, the mobile phone terminal A determines whether or not the current positions PA and PB of the mobile phone terminals A and B match the intermediate point PC. If they do not match (T27), the mobile phone terminal B Returning to the reception state of latitude / longitude information from the mobile phone, on the other hand, when they match (T28), the mobile phone terminal B is notified of the end of navigation (T29).

[Operation flowchart at the time of intermediate point navigation on the mobile phone terminal side that receives the navigation request mail and calculates the intermediate point in the second embodiment]
Next, in the second embodiment of the present invention, the processing when the control unit 21 of the mobile phone terminal that receives the navigation request mail and calculates the intermediate point is executing the application program for intermediate point navigation. A flow is demonstrated using the flowchart shown in FIG.

  In the flowchart of FIG. 13, the navigation request mail sent from the partner mobile phone terminal B is received by the own terminal (mobile phone terminal A), and the navigation approval mail is returned to the partner mobile phone terminal B. Then, the flow of processing when the mobile phone terminal A performs the midpoint calculation is shown.

  In FIG. 13, the control unit 21 of the mobile phone terminal A first proceeds to step S82 when a predetermined navigation request mail is received from the mobile phone terminal B as the process of step S81 in the incoming call waiting state.

  When the process proceeds to step S82, the control unit 21 determines whether or not the user has accepted the navigation request mail via the operation unit 25, and when it is determined that the user has accepted, the above-described figure. The process proceeds to the same step S53 as 10 and, on the other hand, when it is determined not to accept, the process of the flowchart of FIG.

  In this step S82, when an e-mail indicating that the navigation is rejected is returned, the control unit 21 includes the flag indicating that the navigation is rejected and transmits the flag to the mobile phone terminal B.

  Since each process after step S53 is the same as each process of FIG. 10 described above, a description thereof will be omitted.

[In the second embodiment, the operation flowchart at the time of intermediate point navigation of the mobile phone terminal on the side that transmits the navigation request mail to the mobile phone terminal that performs the intermediate point calculation]
Next, in the second embodiment, the flowchart of FIG. 14 shows the flow of processing at the time of intermediate point navigation on the mobile phone terminal B side that transmits a navigation request mail to the mobile phone terminal A on the intermediate point calculation side. It explains using.

  In FIG. 14, execution of the application program for waypoint navigation is started, and waypoint navigation is performed between the own terminal (mobile phone terminal B) and the mobile phone terminal of the other party (mobile phone terminal A). When the user of the mobile phone terminal B inputs via the operation unit 25, the control unit 21 first sends a predetermined navigation request mail addressed to the counterpart mobile phone terminal A as the process of step S101, the communication circuit 22 and Transmission is performed from the communication antenna 23. After the process of step S101, the control unit 21 advances the process to step S102.

  When the processing proceeds to step S102, the control unit 21 determines whether or not a navigation consent mail is returned from the destination mobile phone terminal A, and the navigation consent mail is not sent within a predetermined waiting time, for example. In this case, or when an email refusing navigation is transmitted from the destination mobile phone terminal A, the processing of the flowchart of FIG.

  As an example, the mail rejecting the navigation can be determined by detecting the presence or absence of the flag on the mobile phone terminal B side, including a flag indicating that the other mobile phone terminal A rejects the mail. it can.

  In step S102, when the response of the navigation acceptance mail is detected and the process proceeds to step S103, the control unit 21 receives a notification from the mobile phone terminal A that starts navigation at the intermediate point. Waiting, when the start guidance notification of the intermediate point navigation is received, the process proceeds to step S75 similar to FIG.

  On the other hand, in this step S103, if the intermediate point navigation start guidance notification is not sent within a predetermined waiting time, for example, the control unit 21 ends the processing of the flowchart of FIG.

  Since each process after step S75 is the same as each process of FIG. 11 mentioned above, description after this is abbreviate | omitted.

[Communication sequence at the time of intermediate point navigation in the examples of FIGS. 13 and 14]
Next, FIG. 15 shows a second case where the navigation request mail is transmitted from the mobile phone terminal B to the mobile phone terminal A that performs the intermediate point calculation, and the navigation approval mail is returned from the mobile phone terminal A. The communication sequence between each mobile telephone terminal in the navigation system of embodiment is shown.

  In FIG. 15, when a navigation request mail is transmitted from the mobile phone terminal B to the mobile phone terminal A (T31), and a corresponding navigation approval mail is returned from the mobile phone terminal A (T32), the mobile phone Terminal A transmits a navigation start guidance notification to mobile phone terminal B (T33).

  Since each sequence after T33 is the same as each sequence in FIG. 12 described above, the description after this is omitted.

[Summary of Second Embodiment]
According to the navigation system of the second embodiment described above, the users of the mobile phone terminals A and B can receive the navigation service to the intermediate point of each other only by transmitting and receiving the navigation request mail and the navigation consent mail.

  Further, according to the navigation system of the second embodiment, the intermediate point navigation is started by using only the navigation request mail and the navigation consent mail transmitted / received between the mobile phone terminals A and B as triggers. A complicated procedure such as simple user registration is unnecessary, and a new network and a new data format for configuring the system are also unnecessary. In particular, in the case of the second embodiment, since the server as in the first embodiment is not required, it is possible to realize the midpoint navigation without making any changes to the conventional mobile phone network. .

  In the above-described embodiment, an example of navigating an intermediate point between two mobile phone terminals is given, but as in the case of the first embodiment, intermediate points between three or more mobile phone terminals. Of course, this is also applicable when navigating.

  Further, in the second embodiment, as in the case of the first embodiment described above, an intermediate point is given as an example of a meeting place of users. However, in the present invention, for example, “a restaurant closest to each user” It is also applicable to navigating to “the closest station from each user”. That is, in this case, instead of the intermediate point described above from the current position of each user's mobile phone terminal, “the restaurant closest to each user” and “the station closest to each user” may be searched.

  Furthermore, in the above-described second embodiment, an example is given in which map data is stored in a large-capacity external memory, but the map data may of course be stored in a large-capacity built-in memory.

[Overall summary]
As described above, according to the mobile phone terminal and the navigation system of the embodiment of the present invention, complicated procedures such as user registration are not required, and a new network construction or a new data format is required. In addition, it is possible to perform navigation to the optimal meeting place.

  The above description of the embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made according to the design or the like as long as the technical idea according to the present invention is not deviated.

  The present embodiment is not limited to a mobile phone terminal, and can also be applied when performing intermediate point navigation in, for example, a PDA, a wearable computer, a notebook personal computer, a portable audiovisual device, and the like.

It is a figure which shows the example of a display on the display screen of a mobile telephone terminal when the program for navigation of this embodiment is being executed. 1 is a system diagram showing an overall schematic configuration example of a navigation system according to a first embodiment of the present invention. It is a block diagram which shows the schematic internal structural example of the server which is one element which comprises the navigation system of the 1st Embodiment of this invention. It is a block diagram which shows the schematic internal structural example of the mobile telephone terminal which is one element which comprises the navigation system of the 1st Embodiment of this invention. It is a flowchart which shows the flow of a process when the control part of the mobile telephone terminal of the 1st Embodiment of this invention is executing the application program for waypoint navigation. It is a flowchart which shows the flow of the process at the time of the intermediate point navigation in the other mobile telephone terminal side which receives the predetermined navigation request mail transmitted from one mobile telephone terminal concerning the 2nd Embodiment of this invention. It is a flowchart which shows the flow of a process at the time of the server of the 1st Embodiment of this invention performing waypoint navigation. Each mobile phone terminal in the navigation system of the first embodiment when a navigation request mail is transmitted from one mobile phone terminal to the other mobile phone terminal and a navigation acceptance mail is returned from the other mobile phone terminal It is a communication sequence diagram between servers. It is a block diagram which shows the schematic internal structure of the mobile telephone terminal of the 2nd Embodiment of this invention. In the 2nd Embodiment of this invention, it is a flowchart which shows the flow of a process when the control part by the side of the mobile telephone terminal which performs transmission of a navigation request mail and intermediate point calculation is executing the application program for intermediate point navigation. is there. Processing in the second embodiment of the present invention when the control unit of the mobile phone terminal that receives the navigation request mail from the mobile phone terminal that performs the intermediate point calculation is executing the application program for intermediate point navigation It is a flowchart which shows the flow. FIG. 12 is a communication sequence diagram between mobile phone terminals of the navigation system of the second embodiment in the case of FIGS. 10 and 11. In the 2nd Embodiment of this invention, it is a flowchart which shows the flow of a process when the control part by the side of the mobile telephone terminal which performs reception of a navigation request mail, and a waypoint calculation is executing the application program for waypoint navigation. is there. In the second embodiment of the present invention, the processing when the control unit of the mobile phone terminal on the side that transmits the navigation request mail to the mobile phone terminal that performs the intermediate point calculation is executing the application program for intermediate point navigation It is a flowchart which shows a flow. It is a communication sequence diagram between each mobile telephone terminal of the navigation system of 2nd Embodiment in the case of FIG. 13, FIG.

Explanation of symbols

  1, 2 Characters indicating mobile phone terminal users, 3 waypoints, 4 displays, 5 servers, 6 mobile phone networks, 7 base stations, 8, 9 mobile phone terminals, 10 server control units, 11 terminal ID management units, 12 Navigation management unit, 13 Mail management unit, 14 Map data storage unit, 15 Network interface unit, 21 Control unit, 22 Communication circuit, 23 Communication antenna, 24 Display unit, 25 Operation unit, 26 Clock unit, 27 Memory, 31 Speaker, 32 microphones, 33 sound processing units, 34 image processing units, 35 GPS control units, 36 GPS antennas, 37 external memory interface units

Claims (27)

An input means for acquiring an instruction input from a user;
Signal transmitting and receiving means for transmitting and receiving signals;
Positioning means for detecting the current position of the terminal;
Display means having a displayable screen images,
And control means for controlling the operation of the upper SL signal transmitting and receiving means and the positioning means and the display means,
The control means includes
In response to a predetermined instruction input from the user via the input means , trigger information when the navigation information distribution apparatus executes generation and distribution of navigation information for joining with a user-desired partner terminal is set as the partner information. Inserted into the navigation request mail for requesting the start of navigation to the destination terminal user and the user of the destination terminal, the navigation request mail with the trigger information inserted via the navigation information distribution device addressed to the destination terminal is transmitted from the signal transmitting and receiving means,
After the transmission of the navigation request mail, the signal transmission / reception means receives a navigation approval mail that is transmitted from the partner terminal to the terminal and that is transmitted through the navigation information distribution device and indicates the approval of the navigation start request. when the further information of the navigation start guidance sent from the navigation information delivery apparatus receives the above signal transmitting and receiving means, the starts the operation of detecting the current position by the positioning means, the own terminal to which the positioning means detects The current position data is transmitted from the signal transmission / reception means to the navigation information distribution device,
Then, the current position and the data and its those their respective joining position of the two terminals of the current position and the destination terminal of the own terminal transmitted from the navigation information delivery apparatus as the navigation information for merging with the partner terminal and the map data position is arranged, when the signal transmitting and receiving means has received, an image disposed thereon SL on the map the current position and the merging position thereof both terminals of the current position and the destination terminal of the own terminal , mobile communication terminals Ru is displayed on the screen of the display means. The control means, when the information of the navigation end notification from the navigation information delivery apparatus receives the above signal transmitting and receiving means, the mobile communication terminal according to claim 1, wherein stopping the operation of detecting the current position of the above Symbol positioning means. A microphone that converts voice from the user into voice signals;
A speaker for converting a voice signal sent from a call destination terminal into a call voice,
2. The portable communication terminal according to claim 1 , wherein the signal transmitting / receiving means transmits / receives a voice signal radio wave due to a call to / from a base station of a mobile phone network. An input means for acquiring an instruction input from a user;
Signal transmitting and receiving means for transmitting and receiving signals;
Positioning means for detecting the current position of the terminal;
Display means having a displayable screen images,
And control means for controlling the operation of the upper SL signal transmitting and receiving means and the positioning means and the display means,
The control means includes
After the signal transmission / reception means receives the navigation request mail indicating the navigation start request , which is transmitted from the destination terminal to the own terminal and passed through the navigation information distribution apparatus, a predetermined value is received from the user via the input means. Trigger information when the navigation information distribution device executes generation and distribution of navigation information for joining with the other party terminal in response to the instruction input, and the destination terminal user and the destination terminal user Is inserted into a navigation approval mail indicating an approval for a navigation start request, and the navigation transmission mail with the trigger information inserted is sent to the destination terminal via the navigation information distribution device. Let me reply
After the transmission of the navigation unwanted emails, the information of the navigation start guidance sent from the navigation information distribution device upon receiving the above signal transmitting and receiving means, the starts the operation of detecting the current position by the positioning means, said positioning means Is transmitted to the navigation information distribution device from the signal transmitting and receiving means, the data of the current position of the terminal detected by
Then, the current position and the data and its those their respective joining position of the two terminals of the current position and the destination terminal of the own terminal transmitted from the navigation information delivery apparatus as the navigation information for merging with the partner terminal and the map data position is arranged, when the signal transmitting and receiving means has received, an image disposed thereon SL on the map the current position and the merging position thereof both terminals of the current position and the destination terminal of the own terminal , mobile communication terminals Ru is displayed on the screen of the display means. The control means, when the information of the navigation end notification from the navigation information delivery apparatus receives the above signal transmitting and receiving means, the mobile communication terminal according to claim 4, wherein stopping the operation of detecting the current position of the above Symbol positioning means. A microphone that converts voice from the user into voice signals;
A speaker for converting a voice signal sent from a call destination terminal into a call voice,
5. The portable communication terminal according to claim 4 , wherein the signal transmitting / receiving means transmits / receives a voice signal radio wave due to a call to / from a base station of a mobile phone network. Interface means for connecting to a predetermined communication network;
Navigation that manages e-mails sent and received via the predetermined communication network, and requests the start of navigation when two or more portable communication terminals are destined for each other's destination terminal and the portable communication terminals merge. When a request mail and a navigation consent mail that accepts the navigation start request are transmitted / received via the own device, navigation information for the mobile communication terminal to join the navigation request mail and the navigation consent mail. Mail management means for detecting whether or not trigger information when the device executes generation and distribution is inserted ;
A data storage means for storing the MAP data,
After the mail management means detects that the trigger information is inserted in the navigation request mail and the navigation approval mail, it is sent from the respective mobile communication terminals of the navigation request mail and the navigation approval mail. Based on the current position data, a merging position calculation means for calculating a merging position for merging the mobile communication terminals ,
Map data for arranging the merge position obtained by the merge position calculation means and the current position of each mobile communication terminal is read from the data storage means, and the data of the merge position and the current position of each mobile communication terminal is read. And a control means for delivering the map data read from the data storage means as navigation information to the mobile communication terminal that is the transmission source of the navigation request mail and navigation approval mail . The control means, when that the trigger information to the navigation request mail and navigation unwanted emails is inserted detected by the mail managing means, prior to delivery of the navigation information, the information of the navigation start guidance, the navigation 8. The navigation information distribution device according to claim 7, wherein the navigation information distribution device distributes the request mail and the navigation consent mail to the mobile communication terminal of each transmission source . The control means distributes the navigation end notification information to the transmission source mobile communication terminals of the navigation request mail and the navigation approval mail when the merging position and the current position of each mobile communication terminal substantially match. The navigation information distribution apparatus according to claim 7 . First and second at least two mobile communication terminals, each equipped with a respective detectable function and display function of the electronic mail transmission and reception functions and an image of the current location of the terminal itself, they first, second mobile A navigation system having a function of managing e-mails transmitted and received between communication terminals and a navigation information distribution device for distributing navigation information to first and second portable communication terminals,
The first mobile communication terminal triggers when the navigation information distribution device executes generation and distribution of navigation information for joining with the second mobile communication terminal terminal in response to a predetermined instruction input from the user. The navigation request in which the trigger information is inserted by inserting the information into a navigation request mail for requesting the start of navigation to the user of the second portable communication terminal and the user of the second portable communication terminal. Send an email to the second mobile communication terminal via the navigation information distribution device ,
The second mobile communication terminal receives a navigation request mail representing a navigation start request transmitted from the first mobile communication terminal to the terminal and passing through the navigation information distribution device, and then from the user. In response to the predetermined instruction input, the trigger information when the navigation information distribution device executes generation and distribution of navigation information for joining with the first portable communication terminal is sent to the first portable communication terminal. And inserting the navigation approval mail into which the trigger information is inserted via the navigation information distribution device into the navigation approval mail. Reply to 1 mobile communication device,
The first mobile communication terminal receives a navigation approval mail indicating an approval for the navigation start request transmitted from the second mobile communication terminal to the own terminal and passing through the navigation information distribution device;
The navigation information distribution apparatus is configured to transmit the navigation request mail transmitted from the first mobile communication terminal to the second mobile communication terminal, and from the second mobile communication terminal to the first mobile communication terminal. When it is detected that the trigger information is inserted in the returned navigation consent email , the navigation start guidance information is transmitted to the first and second mobile communication terminals ,
When the first portable communication terminal receives the navigation start guidance information sent from the navigation information distribution device, the first portable communication terminal starts the operation of detecting the current position of the own terminal and detects the detected current position of the own terminal. Is sent to the navigation information distribution device,
When the second mobile communication terminal receives the navigation start guidance information sent from the navigation information distribution device, the second mobile communication terminal starts the detection operation of the current position of the own terminal and also detects the detected current position of the own terminal. Is sent to the navigation information distribution device,
The navigation information distribution device calculates a merging position of the first and second mobile communication terminals based on current position data respectively transmitted from the first and second mobile communication terminals, and Distributing the position and the current position data of each mobile communication terminal and the map data for arranging each position to the first and second mobile communication terminals as navigation information,
When the first and second mobile communication terminals receive the navigation information distributed from the navigation information distribution device, each of the images in which the merging position and the current position of each mobile communication terminal are arranged on the map is displayed on the screen. Navigation system to display on. Said navigation information distribution device, when the joining position and the current position of each mobile communication terminal has substantially coincident, the information in the navigation end notification, claim delivery to the first and second mobile communication terminal 10 The described navigation system. An input means for acquiring an instruction input from a user;
Signal transmitting and receiving means for transmitting and receiving signals;
Positioning means for detecting the current position of the terminal;
Display means having a displayable screen images,
Reading means for reading map data from a predetermined storage medium;
And control means for controlling the operation of the upper SL signal transmitting and receiving means and the positioning means and the display means and reading means,
The control means includes
In response to a predetermined instruction input from the user via the input means , trigger information when the destination terminal executes display of navigation information for joining with the destination terminal desired by the user, the destination terminal Is inserted in a navigation request mail for requesting the start of navigation to the user of the destination terminal, and the signal transmission / reception means is sent to the destination terminal of the navigation request mail in which the trigger information is inserted to send from,
After the transmission of the navigation request mail, when the signal transmission / reception means receives a navigation consent mail that is transmitted from the destination terminal to the terminal and indicates the consent to the navigation start request, the navigation permission mail Detecting whether or not trigger information for executing generation and distribution of navigation information for joining with the partner terminal is executed in the own terminal,
When it is detected that the trigger information is inserted in the navigation consent mail, the navigation start guidance information is transmitted from the signal transmitting / receiving means to the counterpart terminal,
After transmitting the navigation start guidance information, based on the current position sent from the partner terminal and the current position data of the terminal detected by the positioning means , the joining position of the terminal and the partner terminal is determined. Operate,
Map data for arranging the merging position obtained by the calculation, the current position sent from the counterpart terminal, and the current position of the terminal detected by the positioning means are read by the reading means by the predetermined unit. Read from the storage medium,
Navigation of the merge position obtained by the calculation, the current position of the partner terminal and the current position of the terminal itself, and the map data read from the predetermined storage medium by the reading unit to the partner terminal As information delivered,
Current position and the current position of the terminal itself, the mobile communication terminal an image disposed on said map Ru is displayed on the screen of the display means of the joining position and the destination terminal obtained by the above calculation. 13. The portable communication terminal according to claim 12 , wherein the control means transmits navigation end notification information to the partner terminal when the joining position obtained by the calculation and the current position of the partner terminal substantially coincide with each other. . A microphone that converts voice from the user into voice signals;
A speaker for converting a voice signal sent from a call destination terminal into a call voice,
13. The mobile communication terminal according to claim 12 , wherein the signal transmitting / receiving means transmits / receives a voice signal radio wave due to a call to / from a base station of a mobile phone network. An input means for acquiring an instruction input from a user;
Signal transmitting and receiving means for transmitting and receiving signals;
Positioning means for detecting the current position of the terminal;
Display means having a displayable screen images,
And control means for controlling the operation of the upper SL signal transmitting and receiving means and the positioning means and the display means,
The control means includes
Consent to the navigation start request after the signal transmission / reception means has received the navigation request mail transmitted to the terminal from the partner terminal and indicating the navigation start mail for joining the partner terminal. When the destination terminal executes the generation and distribution of navigation information for joining with its own terminal in response to a predetermined instruction input from the user via the input means , Trigger information is inserted into the navigation consent email and sent back from the signal transmission / reception means ,
After the reply of the navigation consent mail, when the signal transmission / reception means receives the navigation start guidance information from the counterpart terminal, the positioning means detects the current position and starts detecting the current position. The data of the current location of the terminal is transmitted from the signal transmission / reception means to the partner terminal,
Then, the map data the current position and the current position and the data and its those respective positions of the merging location of the terminal itself and the destination terminal of the own terminal of the partner terminal sent from the partner terminal is arranged and when the signal receiving means receives the current position and the current position and the merging position of the terminal of the partner terminal, the mobile communication terminal an image disposed on said map Ru is displayed on the screen of the display means . The control means, when the information of the navigation end notification from the destination terminal receives the above signal transmitting and receiving means, the mobile communication terminal according to claim 15, wherein stopping the operation of detecting the current position of the above Symbol positioning means. A microphone that converts voice from the user into voice signals;
A speaker for converting a voice signal sent from a call destination terminal into a call voice,
16. The portable communication terminal according to claim 15 , wherein the signal transmission / reception means transmits / receives a voice signal radio wave due to a call to / from a base station of a cellular phone network. Each have at least two mobile communication terminals and a detectable function and display function of the electronic mail transmission and reception functions and images are each current position of the terminal, at least one of the mobile communication terminal, stores map data A navigation system having a function of transmitting navigation information to the other portable communication terminal,
In response to a predetermined instruction input from the user, the one mobile communication terminal is configured to display trigger information when the other mobile communication terminal executes display of navigation information for joining with the other mobile communication terminal. The navigation request mail is inserted into the navigation request mail for requesting the start of navigation to the user of the other mobile communication terminal and the user of the other mobile communication terminal, and the navigation request mail including the trigger information is inserted into the other mobile communication terminal. Send to the communication terminal ,
When the other portable communication terminal returns the navigation consent mail indicating the consent to the navigation start request after receiving the navigation request mail, the one portable communication terminal responds to a predetermined instruction input from the user. Trigger information when the one mobile communication terminal executes generation and distribution of navigation information for joining with the terminal is inserted and returned in the navigation consent mail,
The one mobile communication terminal receives the navigation consent mail returned from the other mobile communication terminal, and trigger information when the own terminal executes generation and distribution of the navigation information in the navigation consent mail. Upon detecting that it is inserted, after the information of the navigation start guide transmitted to said another mobile communication terminal, the current location comes been sent the other mobile communication terminal or al, the current position detected by the own terminal data and based on, calculates the merging position of the own terminal and the other mobile communication terminal, and the data of the current position and the current position of the other mobile communication terminal of the merge position and the terminal itself, their respective positions top and map data for distribution, and transmits the navigation information to said another mobile communication terminal, and the current position of the merge position and the terminal itself The image placed the current position of the other mobile communication terminal on a map displayed on a screen,
When the other portable communication terminal receives the navigation information sent from the one portable communication terminal, the merge position, the current position of the one portable communication terminal, and the current position of the own terminal are arranged on a map. navigation system that displays the image on the screen. 19. The navigation system according to claim 18 , wherein said one mobile communication terminal transmits navigation end notification information to said other mobile communication terminal when said joining position and the current position of each mobile communication terminal substantially coincide. . An input means for acquiring an instruction input from a user;
Signal transmitting and receiving means for transmitting and receiving signals;
Positioning means for detecting the current position of the terminal;
Display means having a displayable screen images,
Reading means for reading map data from a predetermined storage medium;
Control means for controlling the operation of the signal transmission / reception means, positioning means, display means, and reading means;
The control means includes
When the signal transmission / reception means receives the navigation request mail indicating the navigation start request transmitted from the destination terminal to the own terminal, the generation and distribution of the navigation information for joining the own terminal to the navigation request mail Detect whether trigger information for execution on the terminal is inserted,
When the trigger information is detected, in response to a predetermined instruction input from the user via the input means , navigation information for joining with the terminal is displayed in a navigation consent mail indicating consent to the navigation start request. Trigger information for execution by the counterpart terminal is inserted, a navigation consent mail in which the trigger information is inserted is returned from the signal transmission / reception means to the counterpart terminal, and then navigation start guidance information is sent to the signal Send from the sending / receiving means to the destination terminal,
After information transmission of the navigation start guidance, data based on the current location of the terminal that the current position and the positioning unit sent from the partner terminal is detected, calculates the merging position of the own terminal and the partner terminal ,
Map data for arranging the merging position obtained by the calculation, the current position sent from the counterpart terminal, and the current position of the terminal detected by the positioning means are read by the reading means by the predetermined unit. Read from the storage medium,
Navigation of the merge position obtained by the calculation, the current position of the partner terminal and the current position of the terminal itself, and the map data read from the predetermined storage medium by the reading unit to the partner terminal As information delivered,
Current position and the current position of the terminal itself, the mobile communication terminal an image disposed on said map Ru is displayed on the screen of the display means of the joining position and the destination terminal obtained by the above calculation. 21. The mobile communication terminal according to claim 20 , wherein the control means transmits navigation end notification information to the counterpart terminal when the joining position obtained by the calculation substantially matches the current position of the counterpart terminal. . A microphone that converts voice from the user into voice signals;
A speaker for converting a voice signal sent from a call destination terminal into a call voice,
21. The portable communication terminal according to claim 20 , wherein the signal transmitting / receiving means transmits / receives a voice signal radio wave due to a call to / from a base station of a mobile phone network. An input means for acquiring an instruction input from a user;
Signal transmitting and receiving means for transmitting and receiving signals;
Positioning means for detecting the current position of the terminal;
Display means having a displayable screen images,
And control means for controlling the operation of the upper SL signal transmitting and receiving means and the positioning means and the display means,
The control means includes
Navigation information for joining with the destination terminal in response to a predetermined instruction input from the user via the input means when transmitting a navigation request mail indicating a navigation start request to the destination terminal desired by the user Trigger information when the counterpart terminal executes generation and distribution of the message is inserted into the navigation request mail and transmitted from the signal transmitting / receiving means .
After transmission of the navigation request mail, when the navigation acceptance mail indicating the acceptance of the navigation start request from the partner terminal is the signal transmitting and receiving means has received, the navigation information for merging with the partner terminal to the navigation unwanted emails Detect whether or not the trigger information when executing the display on the own terminal is inserted,
After the trigger information is detected, when the signal transmission / reception means receives the navigation start guidance information from the counterpart terminal, the positioning means detects the current position and starts the current position detection operation. The data of the current location of the terminal is transmitted from the signal transmission / reception means to the partner terminal,
Thereafter, the current position of the destination terminal, the current position of the own terminal, the merge position data of the own terminal and the destination terminal, and the map data in which each position is arranged are sent from the destination terminal. , when the signal receiving means receives the current position and the current position and the merging position of the terminal itself, the mobile communication terminal an image disposed on said map Ru is displayed on the screen of the display means of the destination terminal. The control means, when the information of the navigation end notification from the destination terminal receives the above signal transmitting and receiving means, the mobile communication terminal according to claim 23, wherein stopping the operation of detecting the current position of the above Symbol positioning means. A microphone that converts voice from the user into voice signals;
A speaker for converting a voice signal sent from a call destination terminal into a call voice,
24. The portable communication terminal according to claim 23 , wherein the signal transmitting / receiving means transmits / receives a voice signal radio wave due to a call to / from a base station of a mobile phone network. Each have at least two mobile communication terminals and a detectable function and display function of the electronic mail transmission and reception functions and images are each current position of the terminal, at least one of the mobile communication terminal, stores map data A navigation system having a function of transmitting navigation information to the other portable communication terminal,
When the other mobile communication terminal transmits a navigation request mail indicating a navigation start request to the one mobile communication terminal, the other mobile communication terminal joins the one mobile communication terminal in response to a predetermined instruction input from the user. Trigger information when the one mobile communication terminal executes the generation and distribution of navigation information for inserting the navigation information into the navigation request email and sending it,
The one mobile communication terminal receives the navigation request mail, detects whether or not the trigger information is inserted in the navigation request mail, and when the trigger information is detected, receives a predetermined instruction input from the user. in response, the navigation acceptance mail indicating the acceptance of the navigation start request, the display of the navigation information for merging the own terminal inserts the trigger information when the other mobile communication terminal performs, insert the trigger information The navigation approval email sent to the other mobile communication terminal is sent to the other mobile communication terminal, and the navigation start guidance information is sent to the other mobile communication terminal.
The other mobile communication terminal, after receiving the navigation start guidance from the one mobile communication terminal, starts the operation of detecting the current position of the own terminal, and also detects the detected current position data of the own terminal. To your mobile phone ’s
One of the mobile communication terminal described above, the data of the current position detected by the current position and the own terminal to which the other of the mobile communication terminal or we sent come after transmitting the information of the navigation start guidance into the other mobile communication terminal Based on the above, the merging position of the own terminal and the other mobile communication terminal is calculated, the data of the merging position, the current position of the own terminal and the current position of the other mobile communication terminal, and the respective positions are arranged. The map data is transmitted as navigation information to the other mobile communication terminal, and an image in which the merge position, the current position of the own terminal, and the current position of the other mobile communication terminal are arranged on the map is displayed on the screen. Display
When the other portable communication terminal receives the navigation information sent from the one portable communication terminal, the merge position, the current position of the one portable communication terminal, and the current position of the own terminal are arranged on a map. navigation system that displays the image on the screen. 27. The navigation system according to claim 26 , wherein said one mobile communication terminal transmits navigation end notification information to said other mobile communication terminal when said joining position and the current position of each mobile communication terminal substantially coincide. .

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