JP2005098940A - Navigation system and externally acquired program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system and an externally acquired program which reduce communication cost and time and effort on operations by the user, and allowing the user to visually and intuitively grasp the navigation information. <P>SOLUTION: Input setting for a destination is received by a cellular phone 20 and is transmitted to a navigation center device 40 to be stored therein. The present position data are acquired by an auxiliary terminal device 50 and are transmitted to the navigation center device 40 from the cellular phone 20. Route data are then calculated by the navigation center device 40, based on the destination and the present position data, and are transmitted to the cellular phone 20 to be stored in the cellular phone 20. Navigation is thereafter performed by the cellular phone 20, based on the route data and the present position data from the auxiliary terminal device 50. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a navigation system that provides a navigation service for a user who operates a mobile body, and an external acquisition program that is acquired and mounted on a mobile phone that moves with the mobile body to configure the navigation system. For example, the present invention can be used when a mobile phone is mounted on a car and car navigation is performed by GPS positioning.

  Conventionally, car navigation systems using a global positioning system (GPS) have been widely used. In recent years, a car navigation system using a mobile phone has been proposed along with improvement of the function of the mobile phone.

  For example, the mobile phone includes a mobile phone, a mobile phone in-vehicle auxiliary device equipped with GPS, and a navigation center device. GPS positioning data is input from the mobile phone in-vehicle auxiliary device to the mobile phone, and the positioning data and destination information are carried by the mobile phone. There is a navigation system that transmits current position guidance information and route guidance information from a navigation phone to a navigation center device from a telephone, and displays these texts and voices (see Patent Document 1).

  There is also a navigation system that uses a cellular phone with a built-in GPS to guide a moving body from a current position to a destination (see Patent Document 2). In this system, the current position and desired destination information are transmitted from the mobile phone to the base station that manages the map information, and the base station extracts voice information and position information necessary for guidance based on these information, and the extracted information Are collectively downloaded to a nonvolatile memory built in the mobile phone, and after the download is completed, the communication line is disconnected to notify the user of guidance information.

  In addition, a mobile phone position determination system (a system using a known method such as signal triangulation between towers, signal direction detection, etc.) that grasps the current position of the mobile phone placed at a fixed point instead of moving with the mobile phone is used. A system for performing navigation services, a system for performing navigation services using a mobile phone equipped with positioning hardware (GPS system), and a system for performing navigation services by combining these mobile phone position determination systems and GPS systems Yes (see Patent Document 3). In these systems, a current position data obtained by GPS positioning is transmitted to a navigation service server together with a request for a navigation service from a mobile phone equipped with a GPS system, while a current position data is transmitted from a mobile phone not equipped with a GPS system. Is not transmitted, the current position is ascertained by the mobile phone position determination system.

JP 2001-264096 A (paragraphs [0005], [0006], [0019] to [0021], FIG. 1, abstract) JP 2002-168645 A (paragraphs [0007], [0031], FIG. 1, abstract) JP 2001-249026 A (paragraphs [0005] to [0007], [0015], [0027], [0039], [0041] to [0046], FIG. 1, FIG. 5, summary)

  However, in the navigation system described in Patent Document 1 described above, when the route to the destination is complicated and there are a large number of route guides, the route guide is divided into a plurality of times. A registration ID is given to the access of the route guidance from the mobile phone, and when the registration ID is input by the user and transmitted from the mobile phone together with the positioning data at the next access, the route guidance is returned to the mobile phone. (See paragraphs [0019] to [0021] of Patent Document 1). Accordingly, since the GPS positioning data (user's current position data) and registration ID must be transmitted to the navigation center device every time the route guidance is divided into multiple times, the communication volume increases and the communication cost increases. In addition, there is a problem that it takes time and effort for the user's input operation. In addition, since navigation is performed by voice or text, there is a problem in that an intuitive grasp cannot be made visually.

  Further, in the navigation system described in Patent Document 2 described above, information necessary for navigation is downloaded to a non-volatile memory built in the mobile phone, so there is no need to keep connecting the telephone line when receiving navigation, Although there is a merit of being able to receive navigation services at a cheap telephone fee, it is necessary to prepare a mobile phone with built-in GPS, so in order to receive services using a mobile phone already owned by the user, There will be constraints. In addition, since guidance is performed by voice, there is a problem that an intuitive grasp cannot be made visually.

  Furthermore, in the navigation system described in Patent Document 3 described above, when a mobile phone position determination system is used, the current position of the mobile phone is determined unless communication is performed between the mobile phone position determination system and the mobile phone. Since it can be grasped, there is a problem that the communication cost is high, and the existence of a large number of towers or the like placed at a fixed point is premised, so that the equipment cost is high. On the other hand, in the case of using the GPS system, there is a problem in that communication costs are incurred because the process of repeatedly transmitting the current position data by GPS positioning to the navigation service server together with the request for the navigation service is performed. Further, in paragraph [0039] of Patent Document 3, a driving instruction is downloaded to a mobile phone and stored in a storage device of the mobile phone, and this driving instruction is later when the user approaches a position where a driving operation is necessary. However, there is a description that the mobile phone is given a signal from the mobile phone position determination system that indicates when each instruction should be reproduced. Even if the instructions are downloaded and stored in the mobile phone, it is assumed that continuous communication between the mobile phone position determination system and the mobile phone is performed in order to play it back at an appropriate time. Therefore, the amount of communication for that purpose cannot be reduced.

  An object of the present invention is to provide a navigation system and an external acquisition program capable of reducing communication costs and user operations and intuitively grasping navigation information visually.

  The present invention is a navigation system that provides a navigation service for a user who operates a mobile body, the mobile phone moving with the mobile body, a navigation center device connected to the mobile phone via a communication network, An auxiliary terminal device that is installed on the mobile body and assists the function of the mobile phone, and the auxiliary terminal device acquires current position data of the mobile body, and the current position acquired by the current position acquisition unit Current position data supply means for supplying data to the mobile phone, and the mobile phone receives the destination input setting receiving means for receiving the destination input setting by the user and the destination input setting receiving means. Destination data transmission means for transmitting destination data to the navigation center device via the communication network, and auxiliary Current position data transmitting means for receiving current position data supplied from the terminal device and transmitting the current position data to the navigation center device via the communication network, and route data transmitted from the navigation center device via the communication network Route data receiving means for receiving the route data, route data storage means for storing all data from the starting point to the destination for the route data received by the route data receiving means, route data stored in the route data storage means and auxiliary data Navigation relative position calculation means for calculating the relative position of the moving body on the route based on the current position data received from the terminal device, and navigation for displaying the navigation screen based on the calculation result by the relative position calculation means on the route Including a screen display processing means, and a navigation center. Set the route data from the starting point to the destination based on the destination data and the current position data as the starting point data respectively transmitted from the mobile phone via the communication network by the destination data transmitting means and the current position data transmitting means. The present invention is characterized by comprising route data calculation means for calculating and route data transmission means for transmitting the route data calculated by the route data calculation means to the mobile phone via the communication network.

  Here, the “moving body” is mainly an automobile, but also includes, for example, a motorcycle, a bicycle, and the like, and includes not only a land moving body but also a ship and an aircraft. Therefore, the “route” is not limited to a road extending on the ground, but includes a navigation route and an air route.

  The “current position acquisition unit” is, for example, a positioning system using GPS or D-GPS (Differential GPS).

  Further, the “relative position of the moving body on the route” is, for example, the distance to each point constituting the route.

  The “mobile phone” includes a personal handyphone system (PHS).

  The “communication network” refers to a mobile phone network (for example, CDMA network, PDC network, PHS network, etc.) or a mobile phone network, for example, the Internet, an intranet, an extranet, a local area network (LAN), A combination of a metropolitan area network (MAN), a wide area network (WAN), a leased line, a fixed telephone line network, and the like.

  Furthermore, “all data from the start point to the destination” does not mean the data of all the routes when there are multiple routes from the start point to the destination. For example, long distances such as from Tokyo to Aomori This means that the data from Tokyo to Aomori is stored in a lump without dividing the route as in Tokyo to Sendai and Sendai to Aomori.

  In such a navigation system of the present invention, the mobile phone receives the destination input setting by the user by the destination input setting receiving means, and the destination data received by the destination input setting receiving means is the destination data. It transmits to a navigation center apparatus via a communication network by a transmission means.

  In the auxiliary terminal device, the current position data of the moving body is acquired by the current position acquisition unit, and the acquired current position data is supplied to the mobile phone by the current position data supply unit. Then, the mobile phone receives the current location data supplied from the auxiliary terminal device by the current location data transmission means and transmits it to the navigation center device via the communication network.

  Subsequently, in the navigation center apparatus, the destination data and the current position data as the start point data respectively transmitted from the mobile phone via the communication network by the destination data transmitting means and the current position data transmitting means by the route data calculating means. Based on the above, route data from the start point to the destination is calculated. Then, the route data transmission unit transmits the route data calculated by the route data calculation unit to the mobile phone via the communication network.

  Thereafter, the route data receiving means receives the route data transmitted from the navigation center device via the communication network, and stores all data from the start point to the destination in the route data storage means for the received route data. Then, the relative position calculation means on the route calculates the relative position of the moving body on the route based on the route data stored in the route data storage means and the current position data received from the auxiliary terminal device, The navigation screen display processing means performs navigation screen display processing.

  Therefore, the route data calculated by the route data calculation means of the navigation center device is stored in the route data storage means of the cellular phone since all data from the start point to the destination is stored. After receiving, the acquisition of route data from the navigation center device is not required except in special cases such as when the route is off, and the current position data of the moving object after starting navigation is not obtained from the navigation center device. Instead, it can be received from the auxiliary terminal device by the current position data supply means. For this reason, after navigation starts, it is possible to provide continuous navigation information without performing data communication between the navigation center device and the mobile phone, except in special cases such as when the route is off. Therefore, the communication cost is reduced, and the user does not need to perform the registration ID input operation as in the above-described Patent Document 1 when receiving continuous navigation information. The effort of is reduced.

  In addition, since the current position data can be received from the auxiliary terminal device, the mobile phone need not have a built-in GPS. Therefore, when receiving a navigation service, the user does not need to newly prepare a mobile phone with a built-in GPS. Even if a user owns a mobile phone without a built-in GPS, the user can leave the mobile phone as it is. It can be used to receive navigation services. Since the current position data is received from the external auxiliary terminal device as described above, any device having a function of acquiring the current position data can be used as the auxiliary terminal device. It is possible to customize the device.

  Furthermore, when providing navigation information, the navigation screen display processing means performs display processing of the navigation screen, so that navigation information can be intuitively grasped visually, and a navigation service is provided only by voice output. Compared to the case, the information transmission effect for the user is enhanced, and the above-described object is achieved.

  In the navigation system described above, the mobile phone includes an external numeric keypad connection port for connecting an external numeric keypad, and the current position data supply means of the auxiliary terminal device uses the current numeric position data acquired by the current position acquisition means as the external numeric keypad. It is desirable to include a converter for converting to an input signal, and to send the current position data converted into an external numeric keypad input signal by this converter to the mobile phone from the external numeric keypad connection port.

  Here, the “external numeric keypad” is not a numeric keypad in a strict sense (a collection of numeric keys and keys related to four arithmetic operations), but a numeric keypad in a common sense. Accordingly, the external numeric keypad here includes not only numeric keys and keys relating to four arithmetic operations, but also keys provided on a normal external keyboard such as characters and other symbols.

  When the current position data is input to the cellular phone as an external numeric keypad input signal from the external numeric keypad connection port as described above, the cellular phone can be connected from the auxiliary terminal device using the existing function (key emulation function) of the cellular phone. Since the current position data can be sent to the user, the user can receive the navigation service using the mobile phone owned by the user as it is, and the financial burden on the user is reduced.

  Furthermore, in the navigation system described above, the mobile phone determines whether or not the mobile object has deviated from the route from the start point to the destination based on the current position data received from the auxiliary terminal device and the route data stored in the route data storage means. And a current position data transmitting means of the mobile phone is configured to determine the current position of the mobile body that has deviated from the route when the mobile object has deviated from the route. The navigation center apparatus is configured to transmit data to the navigation center apparatus, and the navigation center apparatus includes a user information database that stores user information including destination data transmitted from the mobile phone by the destination data transmission unit via the communication network. The route data calculation means of the navigation center device is based on the current position data transmission means. Based on the current position data of the moving object that has been transmitted from the mobile phone via the communication network and the destination data stored in the user information database, the current position of the moving object that has deviated from the path is used as a new starting point. The route data from the starting point to the destination is recalculated, and the route data transmission unit of the navigation center apparatus transmits the route data recalculated by the route data calculation unit to the mobile phone via the communication network. It is desirable that

  When the route deviation determining means is provided in this way, when the moving body is moving along the calculated route according to the navigation, the current position data transmitting means transmits the current position data to the navigation center device. Without navigation, the navigation is continued only by supplying the current position data from the auxiliary terminal device to the mobile phone, and the current position data is transmitted to the navigation center device by the current position data transmitting means only when the moving body is off the route. Processing to perform transmission becomes possible. For this reason, as long as the mobile body does not deviate from the route, navigation can be performed only by exchanging data between the auxiliary terminal device and the mobile phone, and data transmission / reception between the navigation center device and the mobile phone is possible. It is possible to perform processing with minimum required.

  In the navigation system described above, the mobile phone has a built-in WEB browser and an execution environment for an external acquisition program that is acquired and installed from the outside. The data transmission means is realized by a destination input setting WEB screen displayed by the WEB browser, and the current position data transmission means, route data reception means, relative position calculation means on the route, and navigation screen display processing means of the mobile phone are: Alternatively, the configuration may be realized by executing an external acquisition program.

  Here, the “execution environment of an external acquisition program” is not an execution environment of a program built in a mobile phone such as a WEB browser, but an execution environment of a program acquired from outside the mobile phone and mounted on the mobile phone. means. For example, when the external acquisition program is a JAVA program (JAVA is a registered trademark), it is a JAVA execution environment corresponding to a mobile phone, and a JAVA virtual machine dedicated to a mobile phone (for example, KVM) is provided inside the mobile phone. Means that it is equipped. In addition, a wireless terminal application platform BREW (Binary Runtime Environment for Wireless) (trademark) may be employed. In this case, the external acquisition program is, for example, a BREW program written in C language or C ++ language.

  More specifically, for example, a JAVA execution environment or the like conforming to the CLDC (Connected Limited Device Configuration) standard is preferable. The CLDC standard is a small terminal such as a mobile phone or a personal digital assistant (PDA) in the execution environment defined as part of JAVA2ME, and functions such as a central processing unit (CPU) and memory capacity. This configuration is for devices with limited MIDP (Mobile Information Device Profile: one of the API sets defined in JAVA2, the specification of JAVA execution environment assumed to be used on mobile phones) or the specifications of services provided by mobile phone companies Since “i-αppli” (trademark) is also positioned in the CLDC standard, the present invention can be suitably applied to any of these.

  When each process performed on the mobile phone is configured to be realized by a WEB browser and an external acquisition program in this way, the destination input setting mainly performed by the user's operation in a state where the moving body is stopped is described in WEB On the other hand, processing that does not normally require the user's operation after that is performed by the browser and the destination input setting WEB screen displayed thereby can be automatically performed by an external acquisition program. Appropriate function sharing is performed by the browser and the external acquisition program, and efficient processing becomes possible.

  In the navigation system described above, the auxiliary terminal device includes a microphone for inputting a user's voice, and the mobile phone includes an execution environment of an external acquisition program that is acquired and installed from the outside. The ground input setting receiving means is configured to receive the destination input setting by the user's voice transmitted from the auxiliary terminal device through the microphone, and the destination data transmitting means of the mobile phone is configured by a dial call to the navigation center device. The navigation center device is provided with voice recognition processing means for performing processing for recognizing the voice of the user transmitted as destination data from the mobile phone via the communication network, and the current position data transmitting means, route of the mobile phone Data receiving means, route relative position calculating means, and navigation image Display processing means may be configured to be realized by executing the external acquisition program.

  Thus, when the voice recognition processing means is provided and the destination setting is performed by voice input, the user can perform the destination setting by voice input. Destination input setting is possible. On the other hand, processing that does not normally require user operation after the destination input setting can be automatically performed by an external acquisition program. For this reason, appropriate function sharing is performed by the call processing by voice input and the external acquisition program, and efficient processing becomes possible.

  Furthermore, in the navigation system described above, the current position data transmitting means of the mobile phone is not only the current position data used as the starting point data in the route data calculation processing by the route data calculating means of the navigation center device, but also the navigation screen of the mobile phone. The current position data acquired after the start of navigation by the display processing means is also transmitted to the navigation center device, and the navigation center device is connected to each of the destination data transmitting means and the current position data transmitting means from the mobile phone via the communication network. User information database that stores user information including destination data and current position data that have been sent, and destination data or current position data for other users stored in this user information database And tracking user destination setting means for setting destination data for a tracking user who wishes to track other users, and the route data calculation means of the navigation center device uses the tracking user destination setting means for the tracking user. When the destination data is set, the route data for tracking for the tracking user is calculated. The route data transmitting unit of the navigation center apparatus calculates the route data for tracking by the route data calculating unit. In such a case, it is desirable that the route data for tracking is transmitted to the mobile phone of the tracking user.

  Here, “tracking” includes not only chasing another user with the current position of the other user as his / her destination, but also sharing the destination with the other user. Therefore, in the latter case, the result may be a postponement, but in the present invention, this case is also referred to as tracking.

  In this way, if it is configured to be able to track other users by providing a tracking user destination setting means, it is possible to move your mobile body in cooperation with other users, It is possible to realize the same behavior as when a plurality of users communicate with each other and take the same behavior or common behavior. In addition, if the current position of another user is set as his / her destination, even if the position of the other user changes from moment to moment, it is possible to move following the user's current location. If it is shared, it becomes possible to grasp the change of the destination of another user and change his / her destination.

  The present invention also provides an external acquisition program that is acquired and installed on the mobile phone that moves together with the mobile body in order to configure a navigation system that provides a navigation service to a user who operates the mobile body. Current position data transmission for receiving the current position data of the moving body supplied from an auxiliary terminal device installed on the moving body and assisting the function of the mobile phone, and transmitting the current position data to the navigation center apparatus via the communication network Route data transmitted from the navigation center apparatus via the communication network, calculated based on the destination data input by the user and the destination data and the current position data as the starting point data transmitted by the current position data transmitting means. And receive route data from the start point to the destination. The relative position of the moving body on the route is calculated based on the route data receiving means for storing all the data in the route data storage means, the route data stored in the route data storage means and the current position data received from the auxiliary terminal device. And a navigation screen display processing means for performing a navigation screen display process based on a calculation result by the path relative position calculation means.

  Further, in the above external acquisition program, the current position data transmitting means receives the current position data sent from the external numeric keypad connection port to the mobile phone in a state converted into an external numeric keypad input signal by the converter of the auxiliary terminal device. It is desirable that

  The external acquisition program of the present invention described above or a part thereof is, for example, a magneto-optical disk (MO), a read-only memory (CD-ROM) using a compact disk (CD), a CD recordable (CD-). R), CD rewritable (CD-RW), read-only memory (DVD-ROM) using digital versatile disk (DVD), random access memory (DVD-RAM) using DVD, flexible disk (FD) ), Magnetic tape, hard disk, read only memory (ROM), electrically erasable and rewritable read only memory (EEPROM), flash memory, random access memory (RAM), etc. For example, LAN, MAN It can be transmitted using a transmission network such as a wired network such as WAN, Internet, Intranet, Extranet, or a wireless communication network, or a combination thereof, and can also be carried on a carrier wave. is there. Furthermore, the external acquisition program of the present invention described above may be a part of another external acquisition program, or may be recorded on a recording medium together with a separate program (not limited to an external acquisition program installed in a mobile phone). It may be recorded.

  As described above, according to the present invention, all the route data from the start point to the destination is acquired from the navigation center device and stored in the mobile phone, and the current position data of the moving body after the start of navigation is assisted. Since navigation is received from the terminal device, continuous navigation is performed without starting data communication between the navigation center device and the mobile phone, except in special cases such as when the route is off after starting navigation. Information can be provided, communication costs can be reduced, user operations can be reduced, and navigation is performed by screen display, so the user can intuitively grasp navigation information visually. There is an effect that can be done.

  An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show the overall configuration of the navigation system 10 of the present embodiment. FIG. 3 shows a hardware configuration of the mobile phone 20 and the auxiliary terminal device 50 constituting the navigation system 10.

  1 and 2, a navigation system 10 includes a mobile phone 20 that moves with a mobile body (here, an automobile as an example), a navigation center device 40, and functions of the mobile phone 20 installed in the vehicle. And an auxiliary terminal device 50 for assisting.

  In FIG. 1, a mobile phone 20 and a navigation center device 40 are connected via a communication network 5 including a mobile phone network 2, a mobile phone company management center 3, and the Internet 4. Note that the communication network 5 is not limited to such a configuration. For example, the communication network 5 may be configured by combining the Internet 4 with a LAN, MAN, WAN, intranet, extranet, or the like. The center 3 may be connected by a dedicated line instead of the Internet 4.

  In FIG. 1, a mobile phone 20 includes a display unit 21 such as a liquid crystal for displaying information on a screen, an operation unit 22 composed of various keys, an external numeric keypad connection port 23 for connecting an external numeric keypad, and infrared communication. And an IrDA port 24. The mobile phone 20 is installed at a position (for example, in the vicinity of the dashboard, etc.) where the driving user can easily check the display content on the screen.

  The external numeric keypad connection port 23 is a 16-core or 18-core interface having a key emulation function for receiving an external numeric keypad input signal (key input signal input using an external keyboard). The IrDA port 24 is a port that receives a signal in accordance with an infrared communication standard (IrDA: Infrared Data Association), and is not used in the present embodiment, but as an external data transmission unit from the auxiliary terminal device 50 to the mobile phone 20, an external device is used. Since it can be used instead of the numeric keypad connection port 23, it is illustrated. In addition to the IrDA port 24, a USB port or a Bluetooth port can be used instead of the external numeric keypad connection port 23.

  In FIG. 2, the mobile phone 20 includes a WEB mode processing unit 31, a JAVA mode processing unit 32 (JAVA is a registered trademark), a call mode processing unit 33, a route data storage unit 34, and an external acquisition program storage. Means 35.

  The WEB mode processing unit 31 includes a program acquisition unit 31A, a destination input setting reception unit 31B, a destination data transmission unit 31C, and a tracking request reception unit 31D. Each of these units 31A to 31D includes , A central processing unit (CPU) provided in the mobile phone 20, a program that defines the operation procedure of the CPU, that is, a WEB browser built in the mobile phone 20, and a WEB screen displayed by the WEB browser (Including applications attached to the screen).

  The program acquisition means 31A downloads and acquires the program stored in the provided program storage means 41B from the WEB server 41 of the navigation center device 40 (in this embodiment, it is assumed as a JAVA program as an example), and the acquired program Is stored in the external acquisition program storage means 35.

  The destination input setting accepting means 31B performs processing for accepting the destination input setting by the user, which is performed using the destination input setting WEB screens G2, G3, etc. (see FIG. 6).

  The destination data transmitting unit 31C performs processing for transmitting the destination data received by the destination input setting receiving unit 31B to the navigation center device 40 via the communication network 5.

  The tracking request receiving unit 31D performs processing for receiving a request from a tracking user who wishes to track another user. Specifically, for example, an input of an ID or a password for specifying another user to be tracked is accepted (see FIG. 10).

  JAVA mode processing means 32 includes current position data transmitting means 32A, route data receiving means 32B, on-route relative position calculating means 32C, navigation screen display processing means 32D, voice navigation processing means 32E, and route departure determining means. Each of the means 32A to 32F includes a central processing unit (CPU) provided in the mobile phone 20 and a program that defines the operation procedure of the CPU, that is, a program acquisition means 31A. The external acquisition program described in JAVA programming language acquired by the external acquisition program storage means 35 and the JAVA virtual machine (KVM) forming the execution environment of the JAVA program.

  The current position data transmitting means 32A receives the current position data supplied and supplied from the external numeric keypad connection port 23 to the mobile phone 20 in a state converted into an external numeric keypad input signal by the converter 81 of the auxiliary terminal device 50. A process of transmitting the current position data to the navigation center device 40 via the communication network 5 is performed. The current position data transmitted by the current position data transmitting means 32A includes current position data as start point data used for calculating own route data and other users (tracking users) who track themselves. Current position data (current position data that becomes destination data of the tracking user) acquired after the start of navigation by the navigation screen display processing means 32D and the tracking route data for the tracking user are calculated. Current position data as start point data used for the tracking point (to trigger the tracking user destination setting process by the tracking user destination setting unit 42A or the path data calculation process by the path data calculation unit 43A) The current position data of the tracking user to be transmitted) and the route deviation determination means 32F. Includes the current position data of the start point data used to re-calculate a new route for the route deviation vehicle when it is determined that out of the path.

  The route data receiving unit 32B receives the route data transmitted from the navigation center device 40 via the communication network 5 by the route data transmitting unit 43B, and stores the received route data in the route data storage unit 34. Is to do.

  The on-route relative position calculating means 32C is based on the route data stored in the route data storage means 34 and the current position data of the vehicle driven by the user received from the auxiliary terminal device 50, and the relative position of the vehicle on the route ( That is, a process for calculating which position on the route the vehicle is traveling) is performed. Specifically, for example, the distance to each point (for example, an intersection, a turning corner, a branch point, etc.) constituting the route data is calculated.

  The navigation screen display processing unit 32D performs display processing of the navigation screens G6 and G7 (see FIGS. 6 and 8) on the display unit 21 based on the calculation result by the on-route relative position calculation unit 32C. The display by the navigation screen display processing means 32D includes, for example, a text display of a name as it is running, a text display of a name such as a nearby intersection, a text display of a remaining distance to a nearby intersection, etc., straight ahead, right turn, left turn Such as text display and graphic display (also enlarged graphic display) are shown.

  The voice navigation processing unit 32E performs processing for providing navigation information by voice based on the calculation result by the relative position calculation unit 32C on the route. Specifically, for example, at the start of navigation (route guide), a start sound effect such as “Peep” is emitted, and “100m ahead and right turn”, “100m ahead and left turn”, etc., 100m before the right / left turn. A sound is generated, and upon arrival at the destination, processing for generating an arrival sound effect such as “ping-pong” is performed.

  Based on the current position data of the vehicle driven by the user received from the auxiliary terminal device 50 and the route data stored in the route data storage unit 34, the route departure determination unit 32F determines that the vehicle driven by the user is from the start point to the destination. The process of determining whether or not the route is deviated is performed.

  The call mode processing unit 33 is realized by a dial call function of the mobile phone 20, and performs a call process between the mobile phone 20 and the voice server 44 of the navigation center device 40. And destination data transmission means 33B.

  The destination input setting accepting means 33A receives a call request signal (including the navigation center phone number) from the auxiliary terminal device 50 when the “VOICE” switch 74 is pressed and makes a call to the voice server 44. A call signal is sent, and in response to this, a voice (for example, “Navigation Center. Please say your destination.” Etc.) prompting you to enter a destination is received and sent to the auxiliary terminal. Processing for receiving the destination input setting by the user's voice sent to the device 50 and sent from the auxiliary terminal device 50 through the microphone 71 is performed.

  The destination data transmitting unit 33B performs processing for transmitting the voice indicating the destination by the user received by the destination input setting receiving unit 33A to the voice server 44 of the navigation center device 40.

  The route data storage means 34 stores the route data received by the route data receiving means 32B. In this route data storage means 34, all data of the route from the starting point to the destination is stored in a lump. This route data includes, for example, latitude / longitude data of each point (intersection, branch point, etc.), name data of each point (intersection, branch point, etc.), street name data, straight / This includes data indicating whether the turn is right or left.

  The external acquisition program storage unit 35 stores and saves the external acquisition program downloaded and acquired from the navigation center device 40 by the program acquisition unit 31A. In the present embodiment, the external acquisition program is described in the JAVA programming language, and has a capacity that can be accommodated in, for example, 10 kilobytes or less. More specifically, for example, JAVA applications that are targets of “EZ application” (trademark) and “i-appli” (trademark), which are a kind of network connection service provided by a mobile phone company. However, the description language and capacity are not limited to these.

  The path data storage means 34, the external acquisition program storage means 35, and storage means such as a WEB browser and JAVA virtual machine (KVM) (not shown) are composed of various memories such as ROM, RAM, EEPROM, flash memory, and the like. Has been.

  1 and 2, the navigation center device 40 includes a WEB server 41, a user information management server 42, a route server 43, and a voice server 44.

  In FIG. 2, the WEB server 41 is configured by a computer and includes a WEB screen storage unit 41A and a provided program storage unit 41B.

  The WEB screen storage means 41A is used to download the menu screen G1 (see FIG. 6), destination input setting WEB screens G2 and G3 (see FIG. 6) used for the destination input setting by the user, and external acquisition program download by the user. Various WEB screens such as a download WEB screen (not shown), a destination confirmation screen G4 (see FIG. 6), and a JAVA activation WEB screen G5 (see FIG. 6) are stored. The cut-out map portion to be confirmed on the destination confirmation screen G4 is created by the WEB server 41 each time.

  The provided program storage unit 41B stores an external acquisition program downloaded to the mobile phone 20 by the user.

  The user information management server 42 is configured by a computer, and includes a tracking user destination setting unit 42A and a user information database 42B.

  The tracking user destination setting means 42A captures destination data or current position data for other users stored in the user information database 42B, and sets destination data for tracking users who wish to track other users. The processing is performed. In the present embodiment, the case where the current position data of another user is set as the destination of the user (tracking user) will be described. The tracking user destination setting means 42A includes the current position data of the user to be tracked (current position data transmitted from the mobile phone 20 of the user to be tracked and rewritten) at a predetermined time interval, and tracking. If the user's destination data is compared with the destination data (the destination data set at that time and may be initially blank (NULL)), and the user is different, the tracking user As the destination data, the current position data of the user to be tracked may be written and set, or the current position data of the user has been transmitted from the mobile phone 20 of the user to be tracked Sometimes, along with the process of rewriting the current location data of the user to be tracked, as destination data for the tracked user, A process of setting write the current position data of the user as a trace target may be performed.

  Further, the tracking user destination setting means 42A has transmitted the ID and password (see FIG. 10) of the user to be tracked (the user to be tracked) from the mobile phone 20 of the user who wishes to track other users. Sometimes, an authentication process is performed to check whether the ID and password are correct. The password is set in advance in the user information database 42B so that the user to be tracked allows the user who wants to track to allow the tracking. Therefore, the user to be tracked tells the user who wants to track the password in advance together with his / her ID, and the user who is informed of the ID and password inputs the instructed ID and password. You can become a tracking user, authorized to track. Therefore, chaotic tracking can be prevented, and only tracking based on an agreement between the user to be tracked and the user who wants to track can be permitted. When the tracking user destination setting unit 42A determines that the tracking is permitted as a result of the authentication process, the tracking user destination setting unit 42A writes the ID of the user to be tracked in the tracking user record (see FIG. 11).

  The user information database 42B stores information on each user for each user. FIG. 11 shows the structure of the user information database 42B. As shown in FIG. 11, the user information regarding each user is memorize | stored in each record which comprises the user information database 42B. The user information includes a user ID, destination data transmitted by the destination data transmitting means 31C and 33B (in the case of a tracking user, destination data set by the tracking user destination setting means 42A), and Starting point data indicating the current position at the start of navigation (current position data used for calculating route data by the route data calculating unit 43A), route data calculated by the route data calculating unit 43A, and current position data transmitting unit The current position data transmitted by 32A, the ID of the user to be tracked (only the record of the tracked user), and the password for tracking permission (only the record of the user to be tracked) are included. In addition, when it is set as the structure which the user who becomes tracking object designates ID of the user who permits own tracking beforehand, the user (a plurality of users who permit tracking) may be included in the record of the user who becomes tracking object. ) ID may be stored.

  The route server 43 is configured by a computer, and includes route data calculation means 43A, route data transmission means 43B, and a map database 43C.

  The route data calculation means 43A is the destination data transmitted from the cellular phone 20 by the destination data transmission means 31C, 33B via the communication network 5 and stored in the user information database 42B (in this embodiment, once the user Destination data read out from the information database 42B by the mobile phone 20 and transmitted from the mobile phone 20 together with the current position data), and transmitted from the mobile phone 20 via the communication network 5 by the current position data transmitting means 32A. Based on the current position data as the starting point data, a process for calculating (searching) the optimum route data from the starting point to the destination is performed while referring to the map database 43C.

  In the case of a tracking user, the route data calculation unit 43A includes destination data for the tracking user set by the tracking user destination setting unit 42A and stored in the user information database 42B, and current position data transmission unit. Based on the current position data as the starting point data transmitted from the tracking user's mobile phone 20 via the communication network 5 by the tracking user 32A, the optimal tracking route from the starting point to the destination is referred to with reference to the map database 43C. A process of calculating (searching) data is performed.

  Further, the route data calculation unit 43A stores the current location data of the vehicle that has been off the route transmitted from the mobile phone 20 via the communication network 5 by the current location data transmission unit 32A, and the user information database 42B that has already been set. Based on the stored destination data, the current position of the car that has deviated from the route is used as a new start point, and the route data from the new start point to the destination is recalculated.

  The route data transmitting unit 43B performs processing for transmitting the route data calculated by the route data calculating unit 43A to the mobile phone 20 via the communication network 5. Further, the route data transmission unit 43B transmits the route data for tracking to the mobile phone 20 of the tracking user via the communication network 5 when the route data for tracking is calculated by the route data calculation unit 43A. Further, the route data transmission unit 43B transmits the new route data for the route departure vehicle recalculated by the route data calculation unit 43A to the mobile phone 20 of the user who drives the route departure vehicle via the communication network 5. .

  The map database 43C stores information (latitude / longitude data, names, etc.) of points such as intersections and branch points in various places, street names, and the like.

  The voice server 44 is configured by a computer and includes voice recognition processing means 44A and acoustic data storage means 44B.

  The voice recognition processing unit 44A performs processing for recognizing the voice indicating the destination transmitted from the mobile phone 20 using the acoustic data stored in the acoustic data storage unit 44B.

  The acoustic data storage unit 44B stores acoustic data used in the voice recognition process.

  And each server 41-44 which comprises the navigation center apparatus 40 described above may be comprised by a separate computer, and may be comprised by one computer.

  The tracking user destination setting means 42A, the route data calculating means 43A, the route data transmitting means 43B, and the voice recognition processing means 44A are not limited to the computer main body (not only the personal computer but also the host computer) constituting each server 42-44. This is realized by a central processing unit (CPU) provided inside the model and one or a plurality of programs that define the operation procedure of the CPU.

  Further, the WEB screen storage unit 41A, the provided program storage unit 41B, the user information database 42B, the map database 43C, and the acoustic data storage unit 44B are preferably realized by, for example, a hard disk or the like, but there are problems with storage capacity, access speed, etc. ROM, EEPROM, flash memory, RAM, MO, CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, FD, magnetic tape, or combinations thereof May be adopted.

  1 to 3, the auxiliary terminal device 50 includes a GPS unit 60, a microphone and switch box 70, a connector 80, and a cigar plug 90. The GPS unit 60 is mounted on, for example, a dashboard, and the microphone and switch box 70 is installed in the vicinity of, for example, an A-pillar (the left and right frame portions of the windshield) and a map lamp (an indoor light provided near the windshield on the ceiling). Is done.

  The GPS unit 60 includes a GPS antenna 61 that receives signals from GPS satellites, a GPS tuner 62 that grasps latitude / longitude information from the received GPS signals, and sends these information to the connector 80 as current position data, and a voice An output speaker 63 and a hands-free circuit 64 for operating the speaker 63 and the microphone 71 are included.

  The microphone & switch box 70 is connected to the GPS unit 60, has a microphone 71 for voice input, a “MENU” switch 72 for displaying the menu screen G1 (see FIG. 6) on the display unit 21 of the mobile phone 20, A “NAVI” switch 73 for starting navigation when the destination has already been set, and a “VOICE” switch 74 for performing voice destination input setting using the speaker 63 and the microphone 71 It consists of

  The connector 80 is a component that is attached to the external numeric keypad connection port 23 of the mobile phone 20 and connects the GPS unit 60 and the mobile phone 20. As shown in FIG. 3, the connector 80 includes a converter 81 that converts a GPS signal (current position data) sent from the GPS tuner 62 into an external numeric keypad input signal and sends it to the external numeric keypad connection port 23. The converter 81 also converts each signal from the “MENU” switch 72, the “NAVI” switch 73, and the “VOICE” switch 74 into an external numeric keypad input signal and sends it to the external numeric keypad connection port 23. Furthermore, the converter 81 performs a process of sending a hands-free ON signal or an OFF signal output from the external numeric keypad connection port 23 to the hands-free circuit 64 of the GPS unit 60.

  Note that a hand-free ON signal or an OFF signal (downward serial signal) is output from the external numeric keypad connection port 23 in order to automatically turn the hand-free circuit 64 on and off in the following cases. That is, an ON signal is output when a telephone call is made (see step S43 in FIG. 7) at the time of destination input setting by voice, and an OFF signal is output at the end of the telephone call (see step S50 in FIG. 7). Is done. Further, an ON signal is output when a telephone call is made and a telephone call is received during a normal call unrelated to navigation, and an OFF signal is output when the telephone call is ended. Further, an ON signal is output at the start of the voice guidance processing by the voice navigation processing means 32E, and an OFF signal is output at the end.

  In addition, the connector 80 allows the audio signal sent from the audio server 44 and output from the external numeric keypad connection port 23 to be output to the hand-free circuit 64 and output from the speaker 63, and input from the microphone 71 to the hand. The user's voice signal output from the free circuit 64 is processed through the external numeric keypad connection port 23 and sent to the voice server 44.

  As shown in FIG. 2, the GPS antenna 61 and the GPS tuner 62 of the GPS unit 60 constitute a current position acquisition unit 51 that acquires current position data of the automobile. Further, the GPS tuner 62 of the GPS unit 60 and the connector 80 constitute current position data supply means 52 for supplying the current position data acquired by the current position acquisition means 51 to the mobile phone 20.

  The cigar plug 90 is a component for supplying power to the GPS unit 60, the microphone & switch box 70, the connector 80, and the mobile phone 20. When the connector 80 is attached to the cellular phone 20, power is supplied from the car battery via the cigar plug 90, the GPS unit 60, and the connector 80, and the cellular phone 20 is constantly charged.

  In this embodiment, the navigation service is provided to the user who drives the car by the navigation system 10 as follows.

  FIG. 4 is a flowchart showing a flow of processing for performing destination input setting in the WEB mode. FIG. 5 is a flowchart showing the flow of processing for performing navigation in the JAVA mode. FIG. 6 shows an example of screen transition associated with the processing of FIGS. 4 and 5.

  First, the user operates the mobile phone 20 in accordance with an instruction on the WEB screen displayed on the display unit 21 of the mobile phone 20, and the JAVA stored in the provided program storage unit 41B from the navigation center device 40 by the program acquisition unit 31A. The program is downloaded and stored in advance in the external acquisition program storage means 35 of the cellular phone 20 used by the user.

  In FIG. 4, the user depresses the “MENU” switch 72 of the microphone & switch box 70 (step S1). Then, the menu screen URL, the unit ID of the GPS unit 60, and its own station number (the station number of the cellular phone 20 used by itself) are sent from the auxiliary terminal device 50 to the cellular phone 20 (step S2). When receiving the information, the cellular phone 20 transmits the information to the WEB server 41 via the communication network 5 (step S3), and shifts to the WEB mode. The state during execution of the WEB mode is indicated by a black thick line.

  Subsequently, the WEB server 41 sends its own station number received from the mobile phone 20 to the server of the mobile phone company, and after acquiring the subscriber ID from this server (step S4), whether or not the user registration has been completed based on the subscriber ID (Step S5). Here, when it is determined that the user registration has not been completed, a paid registration screen is transmitted to the mobile phone 20 (step S6), and the user performs a predetermined registration procedure (not shown) using the WEB screen. Then, a request signal for the menu screen is transmitted from the mobile phone 20 to the WEB server 41 (step S7).

  If it is determined in step S5 that user registration has been completed, and if the menu screen request signal in step S7 is received, the menu screen is transmitted from the WEB server 41 to the mobile phone 20 (step S8). Then, a menu screen G 1 as shown in FIG. 6 is displayed on the display unit 21 of the mobile phone 20.

  In FIG. 6, the menu screen G1 is provided with “Destination setting”, “Traffic information”, “VOICE”, “Drive information”, “Equipment setting”, and “Tracking” selection units. “Destination setting” is selected when input setting of the destination to which the user is going, “Traffic information” is selected when referring to traffic jam information, etc., “VOICE” is input of destination by voice Select when setting, "Drive information" is selected when referring to information such as tourism and gourmet, "Device setting" is selected when setting the customized part of the auxiliary terminal device 50, “Tracking” is selected when setting when tracking by another user or when tracking other users.

  When “Destination setting” is selected (step S9 in FIG. 4), a request signal for the destination input setting WEB screen is transmitted from the mobile phone 20 to the WEB server 41 (step S10). When this request signal is received, the destination input setting WEB screen is transmitted to the mobile phone 20 (step S11). Then, destination input setting WEB screens G2, G3, etc. as shown in FIG. 6 are displayed on the display unit 21 of the cellular phone 20 by the destination input setting receiving means 31B.

  In FIG. 6, the destination input setting WEB screen G <b> 2 displayed first includes “from the station name”, “from the zip code”, which is selected when setting the destination input from the station name, the zip code, and the address. Each selection section “from address” is provided. Here, when "From station name" is selected, a destination input setting WEB screen G3 having a station name input unit is displayed. If you select “From Postal Code”, the zip code entry screen and the municipality selection screen are displayed in this order. If you select “From Address”, you can select the region (Kanto region, etc.) selection screen, prefecture ( Tokyo, Chiba Prefecture, etc.) selection screen and municipality selection screen are displayed in this order.

  When the user selects and inputs necessary items using these destination input setting WEB screens G2, G3, etc., and sets the destination, this setting input is received by the destination input setting receiving means 31B and received. The destination data thus transmitted is transmitted to the WEB server 41 via the communication network 5 by the destination data transmission means 31C (step S12 in FIG. 4).

  When receiving the destination data, the WEB server 41 transmits a destination confirmation screen to the mobile phone 20 (step S13). Then, a destination confirmation screen G4 as shown in FIG. 6 is displayed on the display unit 21 of the mobile phone 20. When the user selects “Yes” (step S14 in FIG. 4), a request signal for the JAVA activation WEB screen is transmitted to the WEB server 41 (step S15). Upon receiving this request signal, the WEB server 41 transmits destination data to the user information management server 42 (step S16), and transmits a JAVA activation WEB screen to the mobile phone 20 (step S17).

  When receiving the destination data from the WEB server 41, the user information management server 42 performs setting registration of the destination data in the user information database 42B (step S18). Further, a JAVA activation WEB screen G5 as shown in FIG. 6 is displayed on the display unit 21 of the mobile phone 20. The subsequent processing is the same as the processing after step S25 when the “NAVI” switch 73 shown in FIG. The processing by pressing the “NAVI” switch 73 in FIG. 5 is processing when the destination input setting has already been completed, and is executed by an external acquisition program, for example, when a normal call is received. This is used when restarting the navigation process when the navigation process is interrupted.

  In FIG. 5, the user depresses the “NAVI” switch 73 of the microphone & switch box 70 (step S21). Then, the JAVA activation WEB screen URL is sent from the auxiliary terminal device 50 to the mobile phone 20 (step S22). Upon receiving this URL, the cellular phone 20 transmits a request signal for the JAVA activation web screen to the web server 41 via the communication network 5 (step S23), and shifts to the web mode. The state during execution of the WEB mode is indicated by a thick black line as in FIG.

  Upon receiving the request signal, the WEB server 41 transmits a JAVA activation WEB screen to the mobile phone 20 (step S24). Then, the JAVA activation WEB screen G5 as shown in FIG. 6 is displayed on the display unit 21 of the mobile phone 20. Here, when the user selects “OK” (step S25), the external acquisition program described in JAVA starts up and shifts to the JAVA mode. The state in which the JAVA mode is being executed is indicated by a thick white line.

  In the JAVA mode, the current position data is sent from the GPS unit 60 of the auxiliary terminal device 50 at intervals of, for example, every second, and is supplied to the mobile phone 20 via the connector 80 (step S26). The external acquisition program first transmits a destination data request signal to the user information management server 42 (step S27), reads the destination data set and registered in the user information database 42B (step S28), and then the current position. The data transmission means 32A receives the current position data sent from the GPS unit 60 in step S26, and transmits the current position data together with the destination data to the route server 43 via the communication network 5 (step S29).

  In the processing of steps S27 to S29 described above, the destination data is read out to the mobile phone 20, but the current position data is transmitted to the user information management server 42 by the current position data transmitting means 32A, and the user information The destination data and the current position data may be transmitted from the management server 42 to the route server 43.

  The route server 43 uses the route data calculation means 43A to determine the optimum route data from the start point to the destination while referring to the map database 43C based on the destination data received from the mobile phone 20 and the current position data as the start point data. Is calculated (step S30), and the calculated route data is transmitted to the mobile phone 20 by the route data transmission means 43B (step S31).

  In the mobile phone 20, the route data receiving means 32B receives the route data, and the received route data is stored and saved in the route data storage means 34, and then the voice navigation processing means 32E starts the start sound effect such as “pea”. And navigation is started (step S32). After starting the navigation, the cellular phone 20 receives the current position data from the auxiliary terminal device 50 by the on-path relative position calculation means 32C (step S33), and the received current position data and the path stored in the path data storage means 34 Based on the data, the relative position of the car on the route is calculated. Then, the navigation screen display processing means 32D displays navigation screens G6 and G7 as shown in FIG. 6 on the display unit 21 of the mobile phone 20 based on the calculation result by the on-route relative position calculation means 32C.

  In FIG. 6, the navigation screen G6 displays a street name display unit 100 that displays a street name, a neighborhood point name display unit 101 that displays a name such as a nearby intersection, and a name such as the next closest intersection. Next point name display unit 102, neighboring point remaining distance display unit 103 and next point remaining distance display unit 104 for displaying the neighboring point and the remaining distance to the next point, and straight, right turn, left turn at the neighboring point and the next point, respectively A neighboring point direction display unit 105 and a next point direction display unit 106 that display different points such as, respectively, and a traveling position display unit 107 that displays a traveling position in the entire route from the start point (start) to the destination (goal). And the remaining distance to the nearby point and the straight line, right turn, left turn, etc. at the nearby point are displayed in text. It is provided and text display section 108.

  Among the displays on the navigation screen G6, the street name display unit 100, the neighborhood point name display unit 101, the next point name display unit 102, the neighborhood point direction display unit 105, the next point direction display unit 106, and the text display unit 108 are straight-forward / The part displaying right turn, left turn, etc. is obtained by extracting the corresponding data from the route data and displaying it. The neighboring point remaining distance display unit 103, the next point remaining distance display unit 104, the traveling position display unit 107, And the part which displays the remaining distance of the text display part 108 displays the numerical value calculated by the relative position calculation means 32C on a path | route. In addition, other parts of the pattern such as roads and intersection signs are fixed displays and are drawn by an external acquisition program.

  The navigation screen display processing means 32D displays the above navigation screen G6 during normal guidance and reaches the navigation screen 100m before each point such as an intersection (however, a setting other than 100m may be set). Switching to G7, the navigation screen G6 is returned again after passing each point such as an intersection.

  In FIG. 6, on the navigation screen G7, the name of the nearby point approaching within 100 m (not displayed when there is no intersection name, etc.) and the nearby point approach information display section indicating the remaining distance to the nearby point 110 and a neighboring point direction enlarged display unit 111 that magnifies and displays whether the vehicle is traveling straight, right turn, left turn, or the like at the neighboring points.

  In addition, when approaching 100m before each point such as an intersection, the voice navigation processing means 32E also provides voice guidance such as “turn right at 100m” and “turn left at 100m” into the navigation screen display processing means 32D. In conjunction with the screen display by.

  FIG. 7 is a flowchart showing a processing flow when the destination input setting is performed by voice. FIG. 8 shows a voice input / output example and a screen transition example associated with the processing of FIG.

  In FIG. 7, the user depresses the “VOICE” switch 74 of the microphone & switch box 70 (step S41). Then, a call request signal (including the telephone number of the navigation center) is sent from the auxiliary terminal device 50 to the mobile phone 20 (step S42), and in response to this, a hand-free signal is sent from the mobile phone 20. It is output and sent to the hands-free circuit 64 (see FIG. 3), and the hands-free function is activated. Further, the destination input setting receiving means 33A transmits a telephone call signal from the mobile phone 20 to the voice server 44 via the communication network 5 (step S43). At this time, a calling screen G8 is displayed on the display unit 21 of the mobile phone 20 to notify that the navigation center (telephone number 0352097301) as shown in FIG. The same applies when “VOICE” is selected on the menu screen G1 of FIG.

  When the voice server 44 receives the telephone call signal, the voice server 44 sends voice guidance for prompting the destination to the mobile phone 20 via the communication network 5, for example, “It is a navigation center. Please say the destination.” (Step S44 in FIG. 7). The voice guidance is sent from the mobile phone 20 to the auxiliary terminal device 50 by the destination input setting receiving means 33A (step S45), and is output from the speaker 63 to reach the user's ear (see FIG. 8).

  Subsequently, the user who heard the voice guidance utters a destination such as “Tokyo Disneyland” (see FIG. 8), and this voice is picked up by the microphone 71 and sent to the mobile phone 20 (see FIG. 8). 7 step S46). In the cellular phone 20, the voice indicating the destination is received by the destination input setting receiving means 33A, and sent to the voice server 44 via the communication network 5 by the destination data transmitting means 33B (step S47).

  When the voice server 44 receives the voice indicating the destination sent from the mobile phone 20, the voice recognition processing means 44A performs voice recognition processing using the acoustic data stored in the acoustic data storage means 44B. Specifically, a sentence or word is grasped from voice, converted into an address, and further converted into latitude / longitude data to obtain destination data. Thereafter, the obtained destination data is transmitted from the voice server 44 to the user information management server 42 (step S48), and set and registered in the user information database 42B (step S49).

  Further, after transmitting the destination data to the user information management server 42, the voice server 44 sends a telephone end signal to the mobile phone 20 (step S50), and the mobile phone 20 transmits the telephone end signal to the auxiliary terminal device. 50 and a hand-free OFF signal is sent to the hand-free circuit 64 (see FIG. 3) (step S51), and then the WEB mode is entered. The state during execution of the WEB mode is indicated by a thick black line as in the case of FIGS.

  When the auxiliary terminal device 50 receives the telephone end signal, it sends a JAVA activation WEB screen URL to the mobile phone 20 (step S52). Upon receiving this URL, the cellular phone 20 transmits a request signal for the JAVA activation web screen to the web server 41 via the communication network 5 (step S53).

  When receiving the request signal, the WEB server 41 transmits a JAVA activation WEB screen to the mobile phone 20 (step S54). Then, the JAVA activation WEB screen G5 as shown in FIG. 8 (the same screen as the screen G5 shown in FIG. 6) is displayed on the display unit 21 of the mobile phone 20. Here, when the user selects “OK” (step S55 in FIG. 7), the external acquisition program described in JAVA starts up and shifts to the JAVA mode. The state during execution of the JAVA mode is indicated by a bold white line as in the case of FIG. Subsequent steps S56 to S63 are the same as steps S26 to S33 in FIG.

  FIG. 9 is a flowchart showing the processing flow when the vehicle receiving the navigation service goes off the route. The process in FIG. 9 shows the process in steps S26 to S33 in FIG. 5 or the process in steps S56 to S63 in FIG. 7 in more detail.

  In FIG. 9, in the mobile phone 20, after an external acquisition program written in the JAVA programming language is started up and shifts to the JAVA mode (step S71), transmission of a destination data request signal to the user information management server 42 (step S71). S72), reception of destination data from the user information management server 42 (step S73), reception of current position data by GPS positioning supplied from the auxiliary terminal device 50 (step S74), destination data to the route server 43, and After performing each process of transmitting the current position data (step S75) and receiving the route data from the route server 43 (step S76), the voice navigation processing means 32E sounds a start sound effect such as “Pee” and performs navigation. Start (step S77).

  After starting the navigation, the cellular phone 20 receives the current position data by GPS positioning supplied from the auxiliary terminal device 50 by the on-path relative position calculation means 32C (step S78), and receives the received current position data and path data storage means. Based on the route data stored in 34, the relative position of the vehicle on the route is calculated. Then, the navigation screen display processing means 32D displays navigation screens G6 and G7 (see FIGS. 6 and 8) on the display unit 21 of the mobile phone 20 based on the calculation result by the on-route relative position calculation means 32C (see FIGS. 6 and 8). In step S79), voice guidance by voice navigation processing means 32E is also performed.

  After that, the cellular phone 20 determines whether or not the car being navigated has deviated from the route by the route departure determining means 32F (step S80). Returning to the process, the route server 43 is made to calculate a new route, and navigation is performed according to the new route. On the other hand, if it is determined that the route has not been departed, it is determined whether or not the destination has been reached (step S81). An arrival sound effect is sounded and the navigation is terminated (step S82). On the other hand, if it is determined that it has not arrived, the process returns to step S78, and thereafter, the processes of steps S78 to S81 are repeated until the destination is reached.

  FIG. 10 shows a setting procedure when another user is tracked and when another user is tracked. FIG. 11 shows the structure of the user information database 42B.

  In FIG. 10, when “tracking” is selected on the menu screen G 1, the display unit 21 of the mobile phone 20 has a tracking unit having each of “track other users” and “tracked by other users”. The tracked selection screen G9 is displayed. “Track other users” is selected by the user who wants to track other users, and “Tracked by other users” is the user to be tracked by other users (for other users) (Users who allow their own tracking) select.

  When “Track other users” is selected on the tracking / tracking selection screen G9, the display unit 21 of the mobile phone 20 is used for a user who wishes to track to specify other users to be tracked. A tracking target user designation screen G10 is displayed. The tracking target user designation screen G10 is provided with an ID input unit 120 and a password input unit 121 for inputting the ID and password of a user who is to be tracked. The ID and password to be input to each of these input units 120 and 121 are those that the user who wishes to track has previously taught from the user to be tracked. This is because the pursuit is based on mutual agreement.

  On the other hand, when “tracked by other users” is selected on the tracking / tracking selection screen G9, the display unit 21 of the mobile phone 20 displays the current state of the user (the user to be tracked) to the user who desires tracking. A position information provision interval setting screen G11 for setting a time interval for providing position data is displayed. In the position information provision interval setting screen G11, selection units of “1 minute”, “5 minutes”, “10 minutes”, “30 minutes”, and “60 minutes” are provided. Note that the selectable time intervals are not limited to these examples. Further, the current position data may be provided at a time interval determined in advance by the system without setting the time interval by such user selection, or provided at such a predetermined time interval. Instead, as will be described later, the current position data may be provided by a user event generation operation.

  When any time interval is selected on the position information provision interval setting screen G11, the display unit 21 of the mobile phone 20 is provided with a password that the user to be tracked gives to the tracking user who permits tracking. A password setting screen G12 to be set is displayed. This password setting screen G12 is provided with a password input unit 130, and the user to be tracked teaches the password input and set by the password input unit 130 only to the user who permits the tracking.

  Below, the flow of the tracking process will be described using the user information database 42B shown in FIG. In FIG. 11, the first line is a record of a user to be tracked (user ID = U1), the second line and the third line are tracking users who track the user ID = U1 (user ID = U2). , U3).

  First, a user to be tracked (user ID = U1) selects a time interval on the position information provision interval setting screen G11 in FIG. 10, and then sets a password on the password setting screen G12. Here, password = W1 is set. The time interval selected on the screen G11 is stored in the mobile phone 20 of the user to be tracked (user ID = U1), while the password (W1 here) set on the screen G12 is stored from the mobile phone 20. It is transmitted to the user information management server 42 and registered in the user record of the user ID = U1 in the user information database 42B. Then, the user to be tracked (user ID = U1) tells the user (user ID = U2, U3) who wants to track the user's ID and the set password (here, W1).

  After the above setting, the mobile phone 20 of the user to be tracked (user ID = U1) is selected on the position information provision interval setting screen G11 by the current position data transmission unit 32A while performing navigation in the JAVA mode. Current position data is transmitted to the user information management server 42 at time intervals. The user information management server 42 receives the current position data transmitted from the mobile phone 20 one after another, and sequentially overwrites and saves the user record of the user ID = U1 in the user information database 42B. Here, P1 is current position data that is sequentially overwritten and saved.

  In addition, when a user to be tracked (user ID = U1) operates the key of the operation unit 22 of his / her mobile phone 20 to generate an event, the current position data at that time is stored in the user information management server 42. May be stored in the user information database 42B.

  On the other hand, the user (user ID = U2, U3) who wants to track the ID (= U1) and the ID (= U1) taught by the user (user ID = U1) to be tracked on the tracking target user designation screen G10 in FIG. Enter the password (= W1). These input IDs and passwords are transmitted from each mobile phone 20 of the user who wants to track (user ID = U2, U3) to the user information management server 42, and the user information management server 42 stores the user information database 42B. Authentication processing is performed by referring to the record of the user with user ID = U1 and determining whether the correspondence between the ID and the password is correct. When it is determined that the correspondence between the ID and the password is correct, tracking is permitted and the user can be a tracking user. Each record of the tracking user (user ID = U2, U3) includes a user to be tracked ID (= U1) is written.

  After the above setting, each mobile phone 20 of the tracking user (user ID = U2, U3) is performing a predetermined time interval (on the screen G11 in FIG. 10) by the current position data transmitting means 32A during navigation in the JAVA mode. Similarly to the case, the current position data may be transmitted to the user information management server 42 at a time interval set by selection of each tracking user or at a time interval determined in advance by the system. Further, each tracking user (user ID = U2, U3) operates the key of the operation unit 22 of his / her mobile phone 20 to generate an event, whereby the current position data at that time is stored in the user information management server 42. You may make it transmit to.

  When receiving the current position data transmitted from each mobile phone 20 of the tracking user (user ID = U2, U3), the user information management server 42 receives the received current position data (here, P2, P3). Is stored in the records of user ID = U2 and U3 of the user information database 42B, and the current position data (= P1) of the record of the user (user ID = U1) to be tracked is recorded by the tracking user destination setting means 42A. The destination data (= D2, D3) of each record of the tracking user (user ID = U2, U3) is compared, and if these are different, each record of the tracking user (user ID = U2, U3) Is overwritten with the current position data (= P1) of the record of the user (user ID = U1) to be tracked. Thereby, the destination of the tracking user (user ID = U2, U3) is set. The destination data of each record of the tracking user (user ID = U2, U3) is initially blank (NULL).

  The timing of overwriting the destination data of each record of the tracking user (user ID = U2, U3) with the current position data (= P1) of the record of the user (user ID = U1) to be tracked is the tracking target. The current position data (= P1) of the record of the user (user ID = U1) to be updated may be updated, or the tracking user destination setting unit 42A may perform it at predetermined time intervals.

  Subsequently, when the destination of the tracking user (user ID = U2, U3) is set, the destination data (= D2, D3) and current position data of the set tracking user (user ID = U2, U3) (= P2, P3) is transmitted from the user information management server 42 to the route server 43. In the route server 43, for each tracking user (user ID = U2, U3) while referring to the map database 43C based on the destination data (= D2, D3) and the current position data (= P2, P3). Route data for tracking is calculated. The calculated route data for tracking is transmitted to each mobile phone 20 of the tracking user (user ID = U2, U3) by the route data transmitting means 43B, and each tracking user (user ID = U2, U3). Used for navigation for tracking.

  According to this embodiment, there are the following effects. That is, the route data calculated by the route data calculation means 43A of the navigation center device 40 is stored in the route data storage means 34 of the cellular phone 20 because all data from the starting point to the destination is stored. After the route data is received by 32B, the acquisition of route data from the navigation center device 40 can be made unnecessary except when the route is deviated or in the case of tracking processing. Further, the current position data of the mobile object after the start of navigation can be received from the auxiliary terminal device 50 instead of from the navigation center device 40. For this reason, after navigation starts, the navigation information is continuously provided without performing data communication between the navigation center device 40 and the mobile phone 20 except when the route is off or in the case of tracking processing. Therefore, the communication cost can be reduced, and the user does not need to perform the registration ID input operation as in the above-described Patent Document 1 when receiving continuous navigation information. Can save time and effort.

  Further, since the current position data can be received from the auxiliary terminal device 50, it is not necessary for the mobile phone 20 to have a built-in GPS. There is no need to newly purchase and prepare, and even if a mobile phone without a built-in GPS is owned, the mobile phone can be used as it is to receive a navigation service. Since the current position data is supplied from the external GPS in this way, the GPS signal supply component can be customized, for example, the current position data can be supplied using a GPS radar or the like. You can also.

  Furthermore, when providing navigation information, the navigation screen display processing means 32D performs display processing of the navigation screens G6 and G7 (see FIGS. 6 and 8), so that the navigation information can be intuitively grasped visually. Therefore, the information transmission effect for the user can be enhanced as compared with the case where the navigation service is performed only by voice output. In particular, on the screen G7, straight lines, right turns, left turns, etc. at close intersections are displayed with enlarged arrows for easy viewing, so you can instantly grasp the direction and turn at intersections, etc. Can be transmitted as an image, so that it is possible to reduce the left and right misrecognition compared to the case of voice guidance.

  Since the navigation system 10 includes not only the navigation screen display processing means 32D but also the voice navigation processing means 32E, it is possible to provide voice guidance in addition to guidance by screen display. Can be further enhanced.

  Further, since the current position data is input from the external numeric keypad connection port 23 to the cellular phone 20 as an external numeric keypad input signal, the existing function (key emulation function) of the cellular phone 20 is used to transfer the current position data from the auxiliary terminal device 50 to the cellular phone 20. Current position data can be sent. For this reason, the user can receive the navigation service by using the mobile phone 20 owned by the user as it is, and can reduce the financial burden on the user.

  Furthermore, since the navigation system 10 includes the route deviation determination unit 32F, when the vehicle is moving along the calculated route according to the navigation, the current position data to the navigation center device 40 by the current position data transmission unit 32A is displayed. The navigation is continued only by supplying the current position data from the auxiliary terminal device 50 to the mobile phone 20 without transmission, and the current position data transmitting means 32A presents the current position to the navigation center device 40 only when the route is off. A process of transmitting position data can be realized. Therefore, except for the case of tracking processing, as long as the route is not deviated, navigation can be performed only by exchanging data between the auxiliary terminal device 50 and the mobile phone 20, and the navigation center device 40 and the mobile phone. Thus, it is possible to realize processing that minimizes the transmission and reception of data to and from 20.

  The cellular phone 20 performs the destination input setting mainly performed by the user's operation while the automobile is stopped in the WEB mode, while the user's operation normally performed thereafter is not required. Since this is performed in the JAVA mode, appropriate function sharing is performed by the WEB browser and the external acquisition program described in JAVA, and efficient processing can be realized.

  Further, since the navigation system 10 includes the speaker 63, the microphone 71, and the hands-free circuit 64, the navigation system 10 can realize a hands-free function, and the user can receive voice service while driving a car safely. That is, a normal call unrelated to navigation can be realized in a hands-free state, and voice guidance by the voice navigation processing means 32E can be heard in a hands-free state. Further, in addition to this hands-free function, the navigation system 10 includes voice recognition processing means 44A, so that the user can set the destination by voice input and set the destination input even while driving a car. be able to.

  Furthermore, since the navigation system 10 includes the tracking user destination setting unit 42A, other users can be tracked. For this reason, for example, it is possible to realize the same behavior as when a plurality of users contact each other and take the same behavior or common behavior.

  Note that the present invention is not limited to the above-described embodiment, and modifications and the like within a scope where the object of the present invention can be achieved are included in the present invention.

  That is, in the embodiment, the current position data supply means 52 (see FIG. 2) is configured to send the current position data to the mobile phone 20 from the external numeric keypad connection port 23 (see FIGS. 1 and 3) of the mobile phone 20. However, the current position data supply means of the present invention is not limited to this. For example, the current position data is sent to the mobile phone 20 from the IrDA port 24 (see FIG. 1) of the mobile phone 20 by infrared communication. A configuration may be employed, or a configuration may be employed in which the mobile phone 20 is sent from a USB port or a Bluetooth port (not shown).

  Moreover, in the said embodiment, although the auxiliary terminal device 50 was comprised including the GPS unit 60, the microphone & switch box 70, and the connector 80 which were each made into a different body, these may be integrated. Alternatively, the functions of these devices may be arbitrarily combined to form a device group having a combination of different functions.

  Further, in the above embodiment, the speaker 63, the microphone 71, the hands-free circuit 64, and the voice recognition processing unit 44A are provided. However, the installation of these is omitted, and the destination setting by hands-free or voice is not performed. Also good. However, it is preferable to install these from the viewpoint of improving user safety and system function.

  In the embodiment, the auxiliary terminal device 50 is configured to include the GPS unit 60 dedicated to the navigation system 10. However, for example, the auxiliary terminal device 50 is configured using a GPS radar or the like that grasps the installation position of an orbit or the like. In short, any device that can acquire current position data such as a GPS signal may be used. In addition, when customizing the auxiliary terminal device 50 in this way, it is only necessary to select “apparatus setting” on the menu screen G1 (see FIG. 6) and set the customized portion. For example, when the auxiliary terminal device 50 is configured using a GPS radar, a WEB screen for setting and changing the sensitivity of the GPS radar, the version of the installation position data such as orvis, and the ONN / OFF of the alarm sound is displayed. What is necessary is just to prepare for the WEB screen memory | storage means 41A (refer FIG. 2).

  In the embodiment, the current position data (GPS signal) is input from the external numeric keypad connection port 23 by using the key emulation function of the mobile phone 20, but other examples include a vehicle speed sensor and an acceleration sensor. An output signal of an external measuring instrument such as the above may be additionally inputted from the external numeric keypad connection port 23.

  Furthermore, in the tracking process of the embodiment, the process of setting the current position of another user (the user to be tracked) as the destination of the tracking user is performed. Also good.

  In the above embodiment, the destination data to be registered in the user information database 42B is set by using the mobile phone 20, but a computer having an environment connected to the communication network 5 and capable of accessing the WEB server 41 is provided. May be used. In this case, the person who sets the destination using the computer is not limited to the user himself / herself who receives the navigation information, but may be another person such as an acquaintance or friend of the visited place (destination). . However, in the case of another person, it is preferable to input a password for permitting access.

  As described above, the navigation system and the external acquisition program of the present invention are suitable, for example, when a mobile phone is mounted on a car and car navigation is performed by GPS positioning.

1 is an overall configuration diagram of a navigation system according to an embodiment of the present invention. FIG. 2 is an overall configuration diagram mainly including functions of the navigation system of the embodiment. The hardware block diagram of the mobile telephone and auxiliary terminal device which comprise the navigation system of the said embodiment. The figure of the flowchart which shows the flow of the process which performs destination input setting in WEB mode. The figure of the flowchart which shows the flow of the process which performs navigation in JAVA mode. FIG. 6 is an exemplary diagram of screen transitions associated with the processes of FIGS. 4 and 5. The figure of the flowchart which shows the flow of a process in the case of performing destination input setting with an audio | voice. FIG. 8 is an exemplary diagram of voice input / output and screen transition associated with the processing of FIG. 7. The figure of the flowchart which shows the flow of a process when the motor vehicle which is receiving the navigation service leaves the route. The figure which shows the setting procedure in the case of tracking other users and when tracked by other users. The figure which shows the structure of the user information database of the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 5 Communication network 10 Navigation system 20 Mobile phone 23 External numeric keypad connection port 31B, 33A Destination input setting reception means 31C, 33B Destination data transmission means 32A Current position data transmission means 32B Navigation screen display processing means 32F Route departure judgment means 34 Route data storage means 40 Navigation center device 42A Tracking user destination setting means 42B User information database 43A Route data calculation means 43B Route data transmission means 44A Voice recognition processing means 50 Auxiliary terminal device 51 Current position acquisition means 52 Current position data supply means 71 Microphone G2, G3 Destination input setting WEB screen

Claims (8)

A navigation system that provides a navigation service to a user who operates a mobile object,
A mobile phone that moves with the mobile body, a navigation center device that is connected to the mobile phone via a communication network, and an auxiliary terminal device that is installed in the mobile body and assists the function of the mobile phone,
The auxiliary terminal device includes current position acquisition means for acquiring current position data of the mobile body, and current position data supply means for supplying the current position data acquired by the current position acquisition means to the mobile phone. Configured,
The mobile phone transmits destination input setting reception means for receiving a destination input setting by the user and destination data received by the destination input setting reception means to the navigation center device via the communication network. Destination data transmission means; current position data transmission means for receiving the current position data supplied from the auxiliary terminal device and transmitting the current position data to the navigation center device via the communication network; and the navigation center Route data receiving means for receiving route data transmitted from the apparatus via the communication network, and route data storage for storing all data from the start point to the destination for the route data received by the route data receiving means Means, the route data stored in the route data storage means, and Relative position calculation means on the route for calculating the relative position of the moving body on the route based on the current position data received from the auxiliary terminal device, and display of the navigation screen based on the calculation result by the relative position calculation means on the route Navigation screen display processing means for performing processing,
The navigation center device is based on the destination data and the current location data as start point data transmitted from the mobile phone via the communication network by the destination data transmission unit and the current location data transmission unit, respectively. Route data calculating means for calculating the route data from the starting point to the destination, and route data transmitting means for transmitting the route data calculated by the route data calculating means to the mobile phone via the communication network. A navigation system characterized by comprising. The navigation system according to claim 1,
The mobile phone includes an external numeric keypad connection port for connecting an external numeric keypad,
The current position data supply means of the auxiliary terminal device includes a converter that converts the current position data acquired by the current position acquisition means into an external numeric keypad input signal, and the converter converts the current position data into the external numeric keypad input signal. A navigation system, wherein the current position data in a state is sent from the external numeric keypad connection port to the mobile phone. The navigation system according to claim 1 or 2,
Whether the mobile phone is out of the route from the starting point to the destination based on the current position data received from the auxiliary terminal device and the route data stored in the route data storage means. A route deviation judging means for judging
The current position data transmitting means of the mobile phone, when the route deviation determining means determines that the mobile body is off the route, the current position data of the mobile body off the route It is configured to transmit to the navigation center device,
The navigation center device includes a user information database that stores user information including the destination data transmitted from the mobile phone by the destination data transmission unit via the communication network,
The route data calculation means of the navigation center device includes the current position data and the user information database of the mobile body that has been off the route transmitted from the mobile phone via the communication network by the current position data transmission means. Based on the destination data stored in the configuration, the route data from the start point to the destination is recalculated with the current position of the mobile body that has left the route as a new start point.
A navigation system characterized in that the route data transmitting means of the navigation center device is configured to transmit the route data recalculated by the route data calculating means to the mobile phone via the communication network. The navigation system according to any one of claims 1 to 3,
The mobile phone has a built-in WEB browser and an execution environment for an external acquisition program that is acquired and installed from outside,
The destination input setting receiving means and the destination data transmitting means of the mobile phone are realized by a destination input setting WEB screen displayed by the WEB browser,
The current position data transmission unit, the route data reception unit, the on-route relative position calculation unit, and the navigation screen display processing unit of the mobile phone are realized by executing the external acquisition program. Navigation system. The navigation system according to any one of claims 1 to 3,
The auxiliary terminal device includes a microphone for inputting the voice of the user,
The mobile phone comprises an execution environment for an external acquisition program that is acquired and installed from outside,
The destination input setting accepting means of the mobile phone is configured to accept the destination input setting by the user's voice sent from the auxiliary terminal device through the microphone,
The destination data transmission means of the mobile phone is realized by a dial call to the navigation center device,
The navigation center device includes voice recognition processing means for performing processing for recognizing the voice of the user transmitted as the destination data from the mobile phone via the communication network,
The current position data transmission unit, the route data reception unit, the on-route relative position calculation unit, and the navigation screen display processing unit of the mobile phone are realized by executing the external acquisition program. Navigation system. In the navigation system according to any one of claims 1 to 5,
The current position data transmission means of the mobile phone is not only the current position data used as start point data in the route data calculation processing by the route data calculation means of the navigation center device, but also the navigation screen display processing means of the mobile phone. The present position data acquired after the start of navigation is also transmitted to the navigation center device,
The navigation center device stores user information including the destination data and the current position data respectively transmitted from the mobile phone via the communication network by the destination data transmitting means and the current position data transmitting means. And setting the destination data for a tracking user who wants to track the other user by capturing the destination data or the current position data for the other user stored in the user information database. Tracking user destination setting means,
The route data calculating means of the navigation center device is configured to calculate tracking route data for the tracking user when the destination data for the tracking user is set by the tracking user destination setting means. And
The route data transmitting means of the navigation center apparatus is configured to transmit the tracking route data to the tracking user's mobile phone when the route data for tracking is calculated by the route data calculating means. A navigation system characterized by An external acquisition program that is acquired and installed on a mobile phone that moves together with the mobile body in order to configure a navigation system that performs a navigation service for a user who operates the mobile body,
The current position data received from the auxiliary terminal device installed on the mobile body and assisting the function of the mobile phone is received, and the current position data is transmitted to the navigation center device via the communication network. Position data transmission means;
A route calculated from the destination data input and set by the user and the current position data as start point data transmitted by the current position data transmitting means and transmitted from the navigation center device via the communication network Route data receiving means for receiving data and storing all data from the start point to the destination for the received route data in the route data storage means;
On-route relative position calculating means for calculating the relative position of the moving body on the route based on the route data stored in the route data storage means and the current position data received from the auxiliary terminal device;
As navigation screen display processing means for performing navigation screen display processing based on the calculation result by the relative position calculation means on the route,
An external acquisition program for causing the mobile phone to function. In the external acquisition program according to claim 7,
The current position data transmitting means is configured to receive the current position data sent from the external numeric keypad connection port to the mobile phone in a state converted to an external numeric keypad input signal by the converter of the auxiliary terminal device. An external acquisition program characterized by

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