JP2004221890A - On-vehicle information terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a user to select a processing content without selecting a communication terminal to be used when the communication terminal to be used is previously set and the communication terminal that is set exists in an area of short range radio communication in an on-vehicle information terminal connected to the communication terminal by using short distance radio communication. <P>SOLUTION: When a registered ID number is stored in a non-volatile memory 107 and the ID number same as the registered ID number exists in an ID number of the communication terminal in the communication area of Bluetooth (R) communication equipment 108, a control circuit 102 controls the communication terminal 200 of the ID number. A menu picture is displayed on a display monitor 106, and the user is caused to select the processing content to be performed. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an in-vehicle information terminal such as a navigation device to which map data is distributed by communication.
[0002]
[Prior art]
2. Description of the Related Art In-vehicle information terminals that connect a mobile phone, receive various information from an information center via the mobile phone, and provide the information to a user are known. In this in-vehicle information terminal, a mobile phone connected to a dedicated harness is controlled and used (Non-Patent Document 1).
There is also known a vehicle-mounted electronic device that connects to a mobile phone using short-range wireless communication represented by Bluetooth, receives various information via the mobile phone, and provides the information to a user (Patent Document 1). .
[0003]
[Non-patent document 1]
Nissan Motor Co., Ltd., "MARCH K12 Series New Model Vehicle Description", February 2002 Edition, p. F-90-F-123
[Patent Document 1]
JP 2002-176486 A
In the in-vehicle information terminal described in Non-Patent Document 1, since only one mobile phone is connected to the harness, the mobile phone to be used is determined by connecting to this harness. However, when connecting to a mobile phone using short-range wireless communication such as Bluetooth, a plurality of mobile phones may be present in the area of short-range wireless communication. At this time, one of the mobile phones is selected and used, but in the vehicle-mounted electronic device described in Patent Document 1, the mobile phone to be used must be selected each time. Therefore, after selecting the mobile phone, the user must select the processing content to be executed.
[0005]
The present invention provides an in-vehicle information terminal connected to a communication terminal such as a mobile phone using short-range wireless communication, in which a communication terminal to be used is set in advance, and the set communication terminal is located within an area of short-range wireless communication. If it exists, the user can select the processing content to be executed without selecting the communication terminal to be used.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided an in-vehicle information terminal, a wireless communication unit for performing wireless communication with an external communication terminal to which different ID numbers are assigned, a storage unit for storing a registered specific ID number, and a wireless communication unit. Determining means for determining the ID number of the communication terminal within the communication area of the communication terminal; and controlling the communication terminal having the ID number stored in the storage means among the communication terminals whose ID numbers have been determined by the determination means. A control unit that executes various processes based on information received by the terminal from the outside; and a control unit that performs control when the ID number determined by the determination unit is the same as the ID number stored in the storage unit. Display means for displaying a menu screen for allowing an operator to select a process to be executed by the means.
The invention according to claim 2 is applied to the in-vehicle information terminal according to claim 1, and when there is not one of the ID numbers determined by the determination unit that is the same as the ID number stored in the storage unit, the determination is performed. Displaying information on the communication terminal having the given ID number on the display means, and storing the ID number in the storage means of the communication terminals on which the information has been displayed and for which the ID number has been registered by the operator. It is.
The invention according to claim 3 is applied to the in-vehicle information terminal according to claim 1 or 2, wherein when there is no ID number stored in the storage means, information on the communication terminal of the ID number determined by the determination means is displayed. , And among the communication terminals on which the information is displayed, the ID numbers of the communication terminals selected by the operator and registered with the ID numbers are stored in the storage means.
The invention according to claim 4 is applied to the in-vehicle information terminal according to any one of claims 1 to 3, and when there is no communication terminal in the communication area of the wireless communication, a message indicating that the communication terminal could not be searched is displayed on the display means. Is what you do.
The invention according to claim 5 is applied to the in-vehicle information terminal according to any one of claims 1 to 4, wherein a priority is set for each ID number stored in the storage means, and a plurality of ID numbers determined by the determination means are provided. When at least two ID numbers are stored in the storage means, one of the at least two communication terminals to which those ID numbers are assigned is selected based on the priority, and the selected communication terminal is selected. Is controlled by the control means.
The invention of claim 6 is applied to the in-vehicle information terminal according to any one of claims 1 to 5, and the wireless communication means is based on Bluetooth wireless communication.
The invention according to claim 7 is applied to the in-vehicle information terminal according to any one of claims 1 to 6, wherein a current position detection means for detecting a current position of the vehicle, a destination of the vehicle are set, and the current position and the destination are set. Route request means for requesting the map of the route to the outside via the communication terminal, and route storage means for storing the map distributed from outside based on the request by the route request means and received via the communication terminal. When the current position is included in the range of the map stored in the route storage means, the map is displayed on the display means.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
--First Embodiment--
A first embodiment of a map information distribution system using a car navigation device according to the present invention will be described. A car navigation device (hereinafter, referred to as an in-vehicle device) 100 mounted on the vehicle 1 and a communication terminal 200 are connected to each other by wireless communication of a Bluetooth (Bluetooth) system. The communication terminal 200 is connected to the information distribution center 400 via the mobile communication network 300 under the control of the vehicle-mounted device 100. At this time, a radio wave for mobile communication, which is different from wireless communication based on the Bluetooth method, is used. The information distribution center 400 receives various requests from the in-vehicle device 100 transmitted from the communication terminal 200, transmits various information such as map data to the communication terminal 200 according to the content of the request, and supplies the information to the in-vehicle device 100. . The communication terminal 200 can also transmit and receive voice, various information, and the like by connecting to another communication terminal (not shown) or a fixed telephone via the mobile communication network 300. As the communication terminal 200, a mobile phone or a PDA (Personal Digital Assistance) having a Bluetooth communication function is used.
[0008]
FIG. 2 is a system block diagram showing the configuration of the vehicle-mounted device 100. The current position detection device 101 that detects the current position of the vehicle 1 includes, for example, a direction sensor 101a that detects the traveling direction of the vehicle 1, a vehicle speed sensor 101b that detects the vehicle speed, a GPS sensor 101c that detects a GPS signal from a GPS satellite, and the like. The control circuit 102 includes a microprocessor and its peripheral circuits, and performs various controls by executing a control program stored in the ROM 103 using the RAM 104 as a work area. The image memory 105 stores image data to be displayed on the display monitor 106. The image data includes road map drawing data, various graphic data, and the like, and displays the map information on the display monitor 106 based on the map data transmitted from the information distribution center 400 shown in FIG. The display monitor 106 also displays a screen for various settings of the vehicle-mounted device 100, for example, a screen for setting a communication terminal to be used. Note that a touch panel is used as the display monitor 106, and when a user presses and selects an arbitrary position on the screen with a finger or the like, input of a destination of the vehicle, selection of various processes, and the like are performed.
[0009]
The non-volatile memory 107 is a memory that stores various information such as map data received from the information distribution center 400, an ID number of the communication terminal 200, and the like. The non-volatile memory 107 can hold the stored data even when the power of the vehicle-mounted device 100 is turned off. For this, for example, a flash memory or the like is used. The Bluetooth communication device 108 is a device that performs Bluetooth communication with the communication terminal 200. The communication terminal 200 is controlled by the vehicle-mounted device 100 via the Bluetooth communication device 108, and various data are transmitted and received between the control circuit 102 and the communication terminal 200.
[0010]
As described above, the nonvolatile memory 107 stores the registered ID number of the communication terminal 200. This ID number is assigned a different number for each communication terminal. By registering the ID number of the communication terminal 200 to be used in advance on the on-vehicle device 100, the on-vehicle device 100 identifies the communication terminal 200 even when a plurality of communication terminals are present in the Bluetooth communication area. Can be controlled and used. At this time, the in-vehicle device 100 determines the ID number included in the data transmitted from each communication terminal by Bluetooth communication, and specifies the communication terminal 200 to be used.
[0011]
The specification of the communication terminal to be used is performed in the control circuit 102 of the vehicle-mounted device 100. FIG. 3 shows a flowchart of the communication terminal specifying process. This flowchart is a processing flow based on a program executed by the control circuit 102, and is executed when the vehicle-mounted device 100 is powered on and started up. In step S1, it is determined whether or not there is an ID number stored in the nonvolatile memory 107, that is, whether or not any ID number has been registered as the ID number of the communication terminal to be used.
If there is a registered ID number, the process proceeds to step S2; otherwise, the process proceeds to step S10.
[0012]
In step S2, a search is made for a communication terminal existing in the Bluetooth communication area. The search for the communication terminal is performed by transmitting a wireless signal from the Bluetooth communication device 108 and receiving a wireless signal transmitted from the communication terminal in response thereto. When a wireless signal is received from a communication terminal, the ID number of the communication terminal included in the wireless signal is stored in RAM 104 as a search result.
[0013]
In step S3, based on the search result in step S2, it is determined whether or not there is a communication terminal whose ID number has been registered in the Bluetooth communication area. This is performed based on whether or not the ID number stored in the RAM 104 in Step S2 includes the same ID number as the ID number stored in the nonvolatile memory 107. If there is the same ID number, the process proceeds to step S4; otherwise, the process proceeds to step S20.
[0014]
In step S4, the communication terminal having received the response in step S2, that is, the communication terminal having the registered ID number among the communication terminals within the Bluetooth communication area is specified as the communication terminal to be used. If there are a plurality of communication terminals having registered ID numbers among the communication terminals that have received the response in step S2, one of them is selected and specified as the communication terminal to be used. At this time, priorities are set for each ID number when registering the ID number, for example, and a communication terminal to be specified is selected based on the priority. Alternatively, among the communication terminals that have received the response in step S2, a list of communication terminals having registered ID numbers may be displayed on the display monitor 106, and the user may select one of them.
[0015]
In step S5, it is determined based on the map data previously distributed from the information distribution center 400 whether or not to display the current route in the route guide. At this time, if the recommended route and the map data around the recommended route are stored in the nonvolatile memory 107 and the current location of the vehicle detected by the current location detection device 101 is included in the map range, it is determined that the current route is displayed. . Otherwise, it is determined not to display. When it is determined that the current route is to be displayed, the process proceeds to step S6, and when it is determined that the current route is not to be displayed, the process proceeds to step S7.
[0016]
In step S6, the route screen shown in FIG. 4 is displayed on the display monitor 106 as the current route in the route guide based on the recommended route and the map data stored in the nonvolatile memory 107. In the route screen of FIG. 4, the current location of the vehicle 1 is represented by the graphic represented by reference numeral 40, and the route represented by reference numeral 41 is represented by changing the display color of the recommended route to another road. When the route screen as shown in FIG. 4 is displayed in step S6, the processing flow shown in FIG. 3 is ended, and the process proceeds to various other processes performed for navigation of the vehicle 1. In the present embodiment, the details of these processes are omitted. The route screen illustrated in FIG. 4 is an example, and the display screen is different depending on the position of the vehicle 1, the recommended route, and the like.
[0017]
In step S7, the menu screen shown in FIG.
When various icons indicated by reference numerals 50 to 59 are selected by the user on the menu screen in FIG. 5, the processing flow illustrated in FIG. 3 is terminated, and processing corresponding to the selected icon is executed. For example, when the icon 52 is selected, processing for setting a destination, requesting a map, and the like is executed. However, in the present embodiment, the details of these processing are omitted. By displaying the menu screen in this way, in step S7, the navigation function of the vehicle-mounted device 100 is enabled, and various processes can be executed.
[0018]
In step S10, an initial registration screen shown in FIG. This screen notifies the user that no ID number has been registered and there is no usable communication terminal, and prompts registration of the ID number of the communication terminal to be used.
[0019]
In step S11, it is determined whether there is a request for searching for a communication terminal. At this time, when the search start button 60 on the initial registration screen in FIG. 6 is selected by the user, it is determined that there is a communication terminal search request, and the process proceeds to step S12. While the search start button 60 is not selected, it is determined that there is no communication terminal search request, the display of the initial registration screen in FIG. 6 is continued, and step S11 is repeated.
[0020]
In step S12, a communication terminal within the Bluetooth communication area is searched for in the same manner as in step S2. If the wireless signal is received from the communication terminal and the search is successful, the ID number of the communication terminal is stored in the RAM 104.
[0021]
In step S13, it is determined whether there is a communication terminal in the Bluetooth communication area based on the search result in step S12. If the search is successful in step S12 and some ID number is stored in the RAM 104, it is determined that the communication terminal is within the Bluetooth communication area, and the process proceeds to step S21. If not, the process returns to step S12.
[0022]
In step S20, it is determined whether a communication terminal having an ID number other than the registered ID number has been successfully searched in step S2. If any ID number is stored in the RAM 104 in step S2 and the ID number is not the same as the ID number stored in the nonvolatile memory 107, a communication terminal having an ID number other than the registered ID number can be searched. Is determined, and the process proceeds to step S21. Otherwise, it is determined that the search has not been performed, and the process returns to step S2. At this time, the display monitor 106 displays that the communication terminal could not be searched.
[0023]
In step S21, the information on the communication terminal whose ID number is found in step S2 or S12 and stored in the RAM 104 is displayed on the display monitor 106 on the terminal information screen shown in FIG. If a plurality of communication terminals can be searched in step S2 or S12, the searched devices are displayed on the display monitor 106 in a list on the terminal list screen shown in FIG. In the lists 80 to 82 of FIG. 8, the names of the communication terminals that have been searched are displayed. When any of these lists is selected by a user operation, information on the selected communication terminal is displayed on the terminal information screen of FIG. Note that the list 83 in FIG. 8 is blank, and even if this is selected, the terminal information screen in FIG. 7 is not displayed. The number of blanks in FIG. 8 changes depending on the number of communication terminals searched in step S2 or S12.
[0024]
The buttons indicated by reference numerals 84 and 85 in FIG. 8 are scroll buttons on the screen. When the button 84 is selected, scrolling is performed upward, and when the button 85 is selected, scrolling is performed downward. If the communication terminal searched in step S2 or S12 cannot be displayed on the terminal list screen of FIG. 8, the user selects these scroll buttons to scroll the screen upward or downward, and selects the communication terminal to be selected. Display.
[0025]
In step S22, it is determined whether there is a communication terminal registration request. At this time, if the user selects the registration button 80 on the terminal information screen of FIG. 7, it is determined that there is a communication terminal registration request, and the process proceeds to step S23. While the registration button 80 is not selected, it is determined that there is no communication terminal registration request, the display of the terminal information screen of FIG. 7 is continued, and step S21 is repeated.
[0026]
In step S23, the registration screen shown in FIG. 9 is displayed on the display monitor 106 for the communication terminal determined to have a registration request in step S22. In this registration screen, when each of the numeric buttons indicated by reference numeral 90 is selected by the user, the numbers corresponding to the selected buttons are sequentially displayed on the ID number display unit indicated by reference numeral 91.
The user inputs the ID number to be registered to the ID number display section 91 by sequentially selecting each of the numeric buttons 90. In this way, when the user inputs the correct ID number of the communication terminal determined to have a registration request in step S22 and selects the input completion button 93, the ID number is registered. After storing the registered ID number in the nonvolatile memory 107, step S23 ends, and the process proceeds to step S4.
[0027]
When an ID number different from the ID number of the communication terminal selected by the user in step S22 is input, the input ID number is not registered even if the input completion button 93 is selected by the user. In such a case, when the user selects the delete button indicated by reference numeral 92, the last digit of the ID number input to the ID number display section 91 is deleted. When the user inputs an incorrect ID number, the user can correct the ID number by selecting the delete button 92.
[0028]
By registering the ID number as described above, the communication terminal used in the vehicle-mounted device 100 is specified. The in-vehicle device 100 makes a route search request to the information distribution center 400 or receives map data from the information distribution center 400 using the specified communication terminal.
[0029]
FIG. 10 is a system block diagram showing the configuration of the information distribution center 400. The information distribution center 400 is connected to the mobile communication network 300 via the external interface 401. The request receiving server 402 receives a request such as a route search transmitted through the external interface 401, and requests each server described later to execute a respective process such as a route search request and a map request. Further, the processing result output from each server is output to the external interface 401.
[0030]
The map distribution server 403 stores the map data in a storage medium such as a hard disk, searches for the corresponding map data from the stored map data according to the map request from the request reception server 402, and outputs the map data to the request reception server 402. I do.
The route search server 404 searches a corresponding route according to a route search request from the request reception server 402 based on the vehicle position information from the position information search server 405, the traffic information database from the traffic information server 406, and the like. Is output.
The position information search server 405 also has a function of searching for facility information near a predetermined point. The traffic information server 406 holds a current traffic information database. The customer DB server 407 holds the personal data of the customer who owns the vehicle-mounted device 100 and updates the personal data according to the use status of the information distribution center 400. The personal data includes, for example, billing information.
[0031]
FIG. 11 shows a data flow at the time of a route search request. When the destination is set by the user operating the display monitor 106, the on-vehicle device 100 issues a route search request.
The route search request issued from the on-vehicle device 100 is transmitted to the information distribution center 400 via the communication terminal 200 and the mobile communication network 300. The route search request received by the information distribution center 400 is input to the request receiving server 402 after passing through the external interface 401, and the content is recognized here. The request receiving server 402 first makes a route search request to the route search server 404. The route search server 404 performs a route search based on the vehicle position information from the position information search server 405 and the traffic information from the traffic information server 406, and returns a route search result to the request reception server 402. The request receiving server 402 that has received the route search result from the route search server 404 then outputs a map request for the route to the map distribution server 403. The map distribution server 403 extracts map information obtained by cutting out a predetermined range along the route by a method described later from the stored map data, and returns the map information to the request reception server 402.
[0032]
In this way, the request receiving server 402 having obtained the map information outputs the route guidance data and the map information data of the route search result to the external interface 401. The output data is transmitted to in-vehicle device 100 via mobile communication network 300 and communication terminal 200. The in-vehicle device 100 displays the transmitted information as an image and provides it to the user. Thus, a series of processes of the route search is completed.
[0033]
FIG. 12 shows a method for cutting out a map within a fixed range along the set route, that is, a cutout area within a predetermined distance from the recommended route. When the destination is set in the on-vehicle device 100, the route search server 404 sets the current location 122 and the destination 123, and the recommended route 124 connecting them is set by a well-known route search calculation process. The cut-out range 125 on this route is set as a portion within a certain range from the route 124, for example, as shown by a shaded region in the figure. In addition, a wider range is set around the current location 122 and the destination 123 than on other routes. The map data in the area of the cut-out range 125 is extracted for each of the meshes 121 obtained by dividing the map into a predetermined range, and is distributed from the information distribution center 400 to the vehicle-mounted device 100 as map information data.
[0034]
In this way, based on the distributed map information data, the vehicle-mounted device 100 displays a map within a predetermined distance from the recommended route on the display monitor 106. The user is guided to the destination based on the displayed map.
[0035]
In the above description, a touch panel is used as the display monitor 106, but the present invention is not limited to this. For example, the display monitor 106 may be a liquid crystal panel, and a specific portion on the screen may be selected by an input device provided in the vehicle-mounted device 100. The display monitor 106 can display a map and various setting screens, and the in-vehicle device 100 can use any configuration as long as it has a means for selecting a specific part on the screen.
[0036]
According to the in-vehicle information terminal according to the first embodiment, the following operation and effect can be obtained.
(1) The registered ID number is stored in the non-volatile memory 107, the ID number of the communication terminal within the communication area of the Bluetooth communication device 108 is determined, and the same ID number as the ID number registered therein is determined. If there is, the control circuit 102 controls the communication terminal 200 of the ID number, and displays a menu screen on the display monitor 106 to allow the user to select the processing content to be executed. As a result, once the ID number of the communication terminal to be used is registered once, there is no need to select a communication terminal each time the communication terminal is used, and the processing content can be quickly selected.
(2) If the ID number of the communication terminal in the communication area of the Bluetooth communication device 108 is not the same as the ID number stored in the nonvolatile memory 107, the communication in the communication area is not performed. Display information about the terminal. When the user selects one of the communication terminals and registers the ID number, the ID number of the communication terminal whose ID number has been registered by the user is stored in the nonvolatile memory 107. As a result, when using a communication terminal for which an ID number has not been registered, the ID number can be quickly registered and used.
(3) If there is no ID number stored in the non-volatile memory 107, information about the ID number of the communication terminal in the communication area of the Bluetooth communication device 108 is displayed. When the user selects one of the communication terminals and registers the ID number, the ID number of the communication terminal whose ID number has been registered by the user is stored in the nonvolatile memory 107. As a result, when registering a new communication terminal ID number, the registration can be performed quickly.
(4) When there is no communication terminal in the communication area of the Bluetooth communication device 108, the fact that the communication terminal could not be searched is displayed on the display monitor 106. As a result, it can be recognized that there is no communication terminal in the communication area and no communication terminal to be used is set.
(5) A priority is set for each ID number registered by the user and stored in the nonvolatile memory 107, and the registered ID is included in the ID numbers of the communication terminals within the communication area of the Bluetooth communication device 108. If there are a plurality of ID numbers identical to the numbers, one of the plurality of communication terminals to which the ID numbers are assigned is selected based on the priority, and the selected communication terminal is controlled by the control circuit 102. I decided. As a result, when there are a plurality of communication terminals whose ID numbers are registered in the communication area, any one of them can be used preferentially.
(6) The wireless communication with the communication terminal 200 is based on the Bluetooth wireless communication. As a result, the cost of a device used for wireless communication with the communication terminal 200 can be reduced.
(7) The current location of the vehicle is detected by the current location detection device 101, a map of the route between the current location and the set destination is requested to the information distribution center 400, and the map distributed based on this request is stored in a nonvolatile manner. When the current location is stored in the memory 107 and included in the range of the map, the map is displayed on the display monitor 106. As a result, the route guide screen can be quickly displayed when the power is turned off and restarted during the route guide using the distribution map.
[0037]
In the above embodiments, the navigation device that receives and displays the delivered map by the communication terminal wirelessly connected has been described. However, the present invention provides various types of in-vehicle information terminals that transmit and receive data to and from the communication terminal by wireless communication. Applicable to In the above embodiment, the wireless communication unit is realized by the Bluetooth communication device 108, the storage unit is realized by the nonvolatile memory 107, the determination unit and the control unit are realized by the control circuit 102, and the display unit is realized by the display monitor 106. Further, the current position detection means is realized by the current position detection device 101, the route request means is realized by the control circuit 102, and the route storage means is realized by the nonvolatile memory 107. However, these are merely examples, and each component is not limited to the above-described embodiment as long as the features of the present invention are not impaired.
[0038]
【The invention's effect】
According to the present invention, when the communication terminal having the registered ID number is within the communication area of the short-range wireless communication, the communication terminal is controlled and used, and a menu screen is displayed and executed for the user. It was decided to select the processing content. As a result, once the ID number of the communication terminal to be used is registered once, there is no need to select a communication terminal each time the communication terminal is used, and the processing content can be quickly selected.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a map information distribution system. FIG. 2 is a block diagram showing a configuration of an in-vehicle device. FIG. 3 is a flowchart showing a process of setting a communication terminal in the in-vehicle device. Display example [Fig. 5] Display example of menu screen [Fig. 6] Display example of initial registration screen [Fig. 7] Display example of terminal information screen [Fig. 8] Terminal list screen [Fig. 9] Registration screen [Fig. FIG. 11 is a block diagram showing a configuration of an information distribution center in the system. FIG. 11 is a diagram showing a data flow at the time of a route search request. FIG. 12 is a diagram showing a method for cutting out a map within a certain range along a route.
1 Vehicle 100 In-vehicle device 200 Communication terminal 300 Mobile communication network 400 Information distribution center

Claims (7)

Wireless communication means for performing wireless communication with external communication terminals each assigned a different ID number,
Storage means for storing the registered specific ID number;
Determining means for determining an ID number of the communication terminal within a communication area of the wireless communication;
Controlling the communication terminal having the ID number stored in the storage means among the communication terminals whose ID numbers are determined by the determination means, and performing various processes based on information received from the outside by the communication terminal; Means,
If the ID number determined by the determination unit is the same as the ID number stored in the storage unit, a menu screen is displayed to allow the operator to select a process to be executed by the control unit. An in-vehicle information terminal, comprising: display means. The in-vehicle information terminal according to claim 1,
If there is no ID number identical to the ID number stored in the storage means among the ID numbers determined by the determination means, information on the communication terminal having the determined ID number is displayed on the display means,
An in-vehicle information terminal, wherein, among the communication terminals on which the information is displayed, the communication terminal in which the ID number is selected by the operator and the ID number is registered is stored in the storage means. The in-vehicle information terminal according to claim 1 or 2,
If there is no ID number stored in the storage means, information on the communication terminal of the ID number determined by the determination means is displayed on the display means,
An in-vehicle information terminal, wherein, among the communication terminals on which the information is displayed, the communication terminal in which the ID number is selected by the operator and the ID number is registered is stored in the storage means. The in-vehicle information terminal according to any one of claims 1 to 3,
An in-vehicle information terminal, wherein when the communication terminal is not in a communication area of the wireless communication, the display means displays that the communication terminal could not be searched. The vehicle-mounted information terminal according to any one of claims 1 to 4,
Setting a priority for each ID number stored in the storage means,
When at least two ID numbers of the plurality of ID numbers determined by the determination unit are stored in the storage unit, one of the at least two communication terminals to which the ID numbers are assigned is used. Select based on priority,
An in-vehicle information terminal, wherein the selected communication terminal is controlled by the control means. The information terminal for a vehicle according to any one of claims 1 to 5,
The in-vehicle information terminal according to claim 1, wherein the wireless communication means is based on Bluetooth wireless communication. The information terminal for a vehicle according to any one of claims 1 to 6,
Current position detecting means for detecting the current position of the vehicle;
Route request means for setting a destination of the vehicle, requesting a map of a route between the current location and the destination to the outside via the communication terminal;
Route storage means for storing the map, which is distributed from the outside based on a request by the route request means and received via the communication terminal,
When the current position is included in the range of the map stored in the route storage means, the map is displayed on the display means, wherein the information terminal is mounted on a vehicle.

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