JP2009236692A - Navigation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation device for recognizing which mesh region updatable mesh data is. <P>SOLUTION: The navigation device displays a map 30 on a display monitor 16 after searching recommended routes. The map 30 is divided in the form of a lattice, and one divided region corresponds to a mesh region. In addition, the recommended route 31 is displayed on the map 30. The map 30 is displayed so that a background color of the map 30 in the mesh regions 32g-32j in which mesh data is updated in the mesh regions 32a-32o in which the recommended route 31 passes is different from the background color of the other part. When any one of the mesh regions 32g-32j different in the background color is pressed, the mesh data corresponding to the mesh regions 32g-32j are updated to use the map data of updated mesh data so as to search the recommended route again. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a navigation device that acquires map data from the outside and updates the map data stored therein.

Receives map data (hereinafter, map data related to one mesh is referred to as mesh data) created in a unit (hereinafter referred to as mesh) obtained by dividing a predetermined geographical area into a plurality of sections having a predetermined area. A communication type navigation device is known as a prior art (for example, Patent Document 1). In this communication type navigation device, when the map data is updated, the map data stored therein can be updated by receiving the updated mesh data. Thereby, it is not necessary to receive all the map data in order to update the map data stored therein.
JP 2003-75174 A

  In the conventional navigation device as described in Patent Document 1, when map data is updated, there is a problem that the user cannot recognize which mesh data is updated.

(1) The navigation device according to the first aspect of the present invention is a map comprising display control means for displaying a mesh on a display monitor so as to be superimposed on a map, and mesh data partitioned by mesh and created corresponding to each partition. Storage means for storing data, receiving means for receiving updated updated mesh data from the outside, and updating means for updating the map data stored by the storage means using the updated mesh data received by the receiving means The display control means includes a mesh display mode corresponding to mesh data that can be updated using the updated mesh data or a display mode in the mesh before receiving the updated mesh data by the receiving unit. Or it is characterized by displaying a mesh or the inside of a mesh so that it may differ from the display mode in a mesh.
(2) The invention according to claim 2 is the navigation device according to claim 1, wherein the receiving means receives determination information for determining a mesh corresponding to the updatable mesh data before receiving the updated mesh data. Received from outside, the display control means displays the mesh or the inside of the mesh based on the judgment information.
(3) The invention of claim 3 comprises the identification information transmitting means for transmitting the identification information for identifying the mesh data stored in the storage means in the navigation device according to claim 2, wherein the receiving means comprises: The determination information transmitted based on the identification information transmitted by the identification information transmitting means is received.
(4) The invention according to claim 4 is the navigation device according to any one of claims 1 to 3, further comprising search means for searching for a recommended route using map data stored in the storage means, and display control. The means displays the recommended route searched by the search means on the map, and displays the mesh display mode corresponding to the mesh data that can be updated among the mesh data corresponding to the mesh through which the recommended route passes, or in the mesh. The display mode is different from the display mode of other meshes or the display mode in the mesh, and the mesh is displayed.
(5) The invention according to claim 5 is the navigation device according to claim 4, wherein the display control means is a display mode or mesh of another mesh for the mesh that the vehicle has passed among meshes that the recommended route passes. It is characterized by not displaying differently from the display mode.
(6) The invention of claim 6 is the navigation device according to claim 3, further comprising search means for searching for a recommended route using the map data stored in the storage means, wherein the identification information transmitting means is stored in the storage means. Transmits identification information for identifying mesh data corresponding to the mesh through which the recommended route passes from the stored mesh data, and the display control unit displays the recommended route searched by the search unit over the map. In addition, the mesh display mode or the display mode in the mesh corresponding to the mesh data that can be updated in the mesh data corresponding to the mesh through which the recommended route passes is changed from the display mode in the other mesh or the display mode in the mesh. It is characterized by displaying meshes differently.
(7) The invention of claim 7 is the navigation device according to claim 6, wherein the identification information transmitting means identifies mesh data corresponding to a mesh that the vehicle has passed among meshes that the recommended route passes. The identification information is not transmitted.
(8) The invention of claim 8 is the navigation device according to any one of claims 4 to 7, further comprising instruction means for instructing update of the map data stored in the storage means, wherein the reception means is the instruction When the update of the map data is instructed by the means, the update mesh data corresponding to the mesh through which the recommended route passes is received, and the update means is stored by the storage means using the update mesh data received by the reception means. The map data is updated, the search means re-searches the recommended route using the map data updated by the update means, and the display control means displays the recommended route re-searched by the search means on the map. It is characterized by that.
(9) The invention according to claim 9 is the navigation device according to any one of claims 1 to 3, wherein the mesh data corresponding to the mesh pressed in the mesh corresponding to the updated mesh data is updated. And receiving means for receiving only mesh data instructed by the instructing means.
(10) The invention of claim 10 corresponds to the navigation apparatus according to claim 9, wherein the receiving means corresponds to a mesh having a road adjacent to the pressed mesh and connected to a road in the pressed mesh. The update mesh data is further received.
(11) The invention according to claim 11 is the navigation device according to any one of claims 1 to 10, wherein the display control means sets the background color of the map in the mesh corresponding to the updateable mesh data to other values. By displaying differently from the background color of the map in the mesh, the display in the mesh corresponding to the mesh data that can be updated can be displayed in the mesh to be different from the display in the other mesh, or can be updated. By displaying the mesh frame corresponding to the mesh data thicker than the other mesh frames, the mesh display mode corresponding to the updateable mesh data is displayed differently from the other mesh display modes. It is characterized by.

  According to the present invention, the mesh is displayed on the map, and before the stored mesh data is updated, the display mode of the mesh corresponding to the mesh data that can be updated is different from the display mode of the other meshes. . Therefore, the user can recognize which mesh the updatable mesh data belongs to before the mesh data is updated.

  FIG. 1 is a diagram for explaining a map update system according to an embodiment of the present invention. The map update system of FIG. 1 includes a navigation device 1 and an information center 2 provided in a vehicle. The navigation device 1 and the information center 2 are connected via a network 3. In this map update system, the information center 2 transmits updated mesh data to the navigation device 1. The navigation device 1 updates the stored map data using the received mesh data.

  Details of the navigation device 1 will be described later. The information center 2 includes a server 21 and a communication device 22. The server 21 stores map data. The map data is created and stored in units obtained by dividing a predetermined geographical area into a plurality of sections having a predetermined area. Hereinafter, one unit obtained by dividing a predetermined map into a mesh shape is referred to as a mesh region, and the mesh line is referred to as a mesh. In addition, map data corresponding to one mesh area is hereinafter referred to as mesh data. A collection of a plurality of mesh data is called map data. The mesh data includes a mesh ID and version information as attached information. The mesh ID is an identification code for making it possible to recognize which mesh region the mesh data is. The version information is a code for making it possible to recognize when the mesh data stored in the server is updated. The mesh data stored in the server 21 can be transmitted to the navigation device 1 using the communication device 22.

  FIG. 2 is a diagram for explaining the navigation device 1 constituting the route guidance system. The navigation device 1 stores map data, and can update the map data using mesh data transmitted from the information center 2. The navigation device 1 includes a control circuit 11, a ROM 12, a RAM 13, a current location detection device 14, an image memory 15, a display monitor 16, a speaker 17, an input device 18, a touch panel 19, a touch panel control unit 110, a communication device 111, and a data storage device 112. Have. The data storage device 112 stores map data.

  The control circuit 11 includes a microprocessor and its peripheral circuits, and performs various controls by executing a control program stored in the ROM 12 using the RAM 13 as a work area. The control circuit 11 performs a predetermined route search process based on the map data stored in the data storage device 112. Then, the processing result is displayed on the display monitor 16 as a recommended route.

  The current location detection device 14 is a device that detects the current location of the vehicle. The current location detection device 14 includes a vibration gyro 14a, a vehicle speed sensor 14b, a GPS (Global Positioning System) sensor 14c, and the like. The vibration gyro 14a detects the traveling direction of the vehicle, the vehicle speed sensor 14b detects the vehicle speed, and the GPS sensor 14c detects a GPS signal from a GPS satellite. The navigation device 1 determines a map display range, a route search start point, and the like based on the current location of the vehicle detected by the current location detection device 14. Further, the current location of the vehicle detected by the current location detection device 14 is displayed on the map as the vehicle position mark.

  The image memory 15 stores image data to be displayed on the display monitor 16. The image data includes road map drawing data and various graphic data, which are appropriately generated in the control circuit 11 based on the map data stored in the data storage device 112.

  The data storage device 112 is configured by a rewritable nonvolatile recording medium such as a flash memory or a hard disk, and stores map data. The map data includes map display data, route search data, and the like. The map display data and the route search data include road link information and node information stored in the map data. The map display data has map data of a plurality of scales from wide areas to details, and the scale of the display map can be changed according to a user request.

  Similar to the server 21 of the information center 2, the data storage device 112 stores map data in units of mesh areas. That is, map data is stored in the data storage device 112, and the map data is composed of mesh data created separately for each mesh region. The mesh data includes a mesh ID and version information as attached information.

  The navigation device 1 can determine from the version information whether the mesh data stored in the data storage unit 112 is the latest. Specifically, the determination is made by comparing the version information of the mesh data stored in the data storage device 112 and the version information transmitted from the information center 2.

  The mesh area on the map displayed on the display monitor 16 can be associated with the mesh data by the mesh ID. Further, the navigation device 1 can recognize the correspondence between the mesh data received from the information center 2 and the mesh data stored in the data storage device 112 based on the mesh ID. Thereby, map data can be updated by replacing old mesh data with new mesh data. Therefore, when updating the map data, it is not necessary to replace all the map data stored in the data storage device 112 with new map data.

  The display monitor 16 provides the user with various information such as a road map near the vehicle position as a screen display based on various information such as map data. The speaker 17 outputs sound for instructing the user to perform various input operations and for guiding the route. The input device 18 has operation keys that are operated by a user for setting various commands, and is realized by a button switch on the operation panel, a hard switch around the panel, or the like. The user sets the destination by operating the input device 18 in accordance with an instruction on the display screen of the display monitor 16 or a voice instruction from the speaker 17.

  When the destination is set by the user, a route search end point is set at the destination. Then, route calculation from the route search start point to the route search end point is performed based on a predetermined algorithm using the route search data. The route thus obtained (hereinafter referred to as a recommended route) is displayed on the screen in a manner different from other roads by changing the display form, for example, the display color. Thereby, the user can recognize the recommended route on the road map on the screen. Further, the navigation device 1 instructs the user in the direction of travel using a screen or voice so that the vehicle can travel according to the recommended route, thereby guiding the route of the vehicle.

  The touch panel 19 is a transparent touch switch laminated on the surface of the display monitor 16, and an image displayed on the display monitor 16 is displayed through the touch panel 19. Accordingly, when the display screen of the display monitor 16 is pressed, the touch panel 19 is pressed. The touch panel 19 sends a signal corresponding to the operation position on the touch panel 19 to the touch panel control unit 110, and the touch panel control unit 110 calculates the pressed position of the touch panel 19. When an attempt is made to press various buttons and display menus displayed on the display monitor 16 with a finger or the like, the touch panel 19 is pressed, and processing defined in the various buttons and display menus is executed.

  The communication device 111 is a device that performs wireless communication toward the network 3. Thereby, information can be transmitted to and received from the information center 2.

  Next, the map data update operation in the embodiment of the present invention will be described with reference to FIG. FIG. 3A is a diagram for explaining a display screen of the display monitor 16 displayed after searching for a recommended route. A map 30 is displayed on the display screen of the display monitor 16. The map 30 is partitioned by a mesh, and a region in one mesh corresponds to the mesh region. In addition, the searched recommended route 31 is displayed on the map 30. The mesh data of the information center 2 is updated in the mesh areas 32a to 32o through which the recommended path 31 passes, and the background of the mesh areas 32g to 32j corresponding to the mesh data that can be updated by receiving the mesh data. The map 30 is displayed so that the color is different from the background color of other parts.

  As shown in FIG. 3B, when any one of the mesh areas 32g to 32j having different background colors on the map is pressed, the mesh data of the information center 2 is received and corresponds to the mesh areas 32g to 32j. The mesh data in the data storage device 112 is updated. Then, the recommended route is searched again using the map data of the data storage device 112 having the updated mesh data, that is, using the map data of the updated data storage device 112.

  Next, map data update processing and recommended route search processing using the updated map data in the embodiment of the present invention will be described with reference to the flowchart of FIG. The processing of FIG. 4 is executed in the control circuit 11 by a program that starts when the searched recommended route is displayed on the map.

  In step S <b> 401, the mesh ID of the mesh data corresponding to the mesh area through which the recommended route passes is transmitted to the information center 2 using the communication device 111. When the information center 2 receives the mesh ID, the information center 2 transmits mesh data version information corresponding to the mesh ID to the navigation device 1. In step S402, the communication device 111 is used to receive mesh data version information corresponding to the transmitted mesh ID.

  In step S403, it is determined whether the mesh data corresponding to the mesh area through which the recommended route passes has been updated in the information center 2. The determination is made by comparing the version information transmitted from the information center 2 with the version information of the mesh data stored in the data storage device 112. If the mesh data has been updated, an affirmative determination is made in step S403 and the process proceeds to step S404. If the mesh data has not been updated, a negative determination is made in step S403 and the process ends. In step S404, the background color of the map in the mesh area where the mesh data is updated in the information center 2 is changed.

  In step S405, it is determined whether or not the mesh area whose map background color has been changed has been pressed within a predetermined time after the map background color has been changed. If the mesh area whose map background color is changed is pressed within a predetermined time after the map background color is changed, an affirmative determination is made in step S405, and the process proceeds to step S406. If the mesh area whose map background color is changed is not pressed within a predetermined time after the map background color is changed, a negative determination is made in step S405, and the process ends.

  In step S406, the communication device 111 is used to transmit to the information center 2 a signal (mesh data request signal) for requesting mesh data corresponding to the mesh area whose map background color has been changed. The information center 2 that has received the mesh data request signal transmits the requested mesh data to the navigation device 1. In step S407, the mesh data transmitted from the information center 2 using the communication device 111 is received. In step S408, the map data stored in the data storage device 112 is updated using the received mesh data. In step S409, the recommended route is searched using the map data updated in the data storage device 112. The departure point is the current location of the vehicle, and the destination is a preset destination. In step S410, the searched recommended route is displayed so as to overlap the map displayed on the display monitor.

The navigation device 1 in the first embodiment described above has the following operational effects.
(1) Before receiving mesh data updated in the information center 2, mesh data that can be updated by receiving updated mesh data among mesh data corresponding to the mesh region through which the recommended route passes. The display mode of the mesh area corresponding to is different from the display mode of other meshes so that the mesh is displayed. Therefore, the user can recognize which mesh region the mesh data that can be updated in the mesh region through which the recommended route passes. By being able to recognize in this way, it is possible to immediately update the map data stored in the data storage device 112 and determine whether or not to search for a recommended route again. For example, in the mesh through which the recommended route passes, the mesh data is updated in the information center 2, and there is no mesh area (updatable mesh area) corresponding to the mesh data that can be updated by receiving the mesh data. For example, it is not necessary to update the map data stored in the data storage device 112 and search the recommended route again. This is because it takes time to receive updated mesh data and search for a recommended route. Even if there is a mesh whose mesh data has been updated in the information center 2 in the mesh area through which the recommended route passes, road construction or the like is performed when the road that the recommended route has passed previously. If not, even if the map data stored in the data storage device 112 is updated, the possibility that the recommended route is changed is small. In such a case, it is not necessary to immediately update the map data stored in the data storage device 112 and search for a recommended route again.

(2) The navigation device 1 updates the map data stored in the data storage device 112 when the user presses any one of the mesh regions 32g to 32j having different map background colors. Therefore, the user can update the map data based on his / her own judgment based on the updatable mesh area displayed on the display monitor 16.

(3) The map background color in the updatable mesh area is made different from the map background color in the other mesh areas. Therefore, the user can easily recognize which mesh region the updatable mesh data belongs to.

The navigation device 1 of the above embodiment can be modified as follows.
(1) If the display mode of the updatable mesh area (within the mesh) is different from the display mode of other mesh areas (within the mesh), the background color of the map in the updatable mesh area is set to another mesh area. It is not limited to what makes it different from the map background color. For example, as shown in FIG. 5, meshes surrounding the updatable mesh regions 32g to 32j may be displayed thicker than other meshes. Moreover, as shown in FIG. 6, you may make it the part which passes the updateable mesh area | regions 32g-32j of the recommendation path | route 31 blink. That is, the display mode in the mesh area may be different.

(2) The map 30 is displayed so that the background color of the map 30 in the updatable mesh regions 32g to 32j is different from the background color of the map of the other portion in the mesh regions 32a to 32o through which the recommended route 31 passes. I did it. However, as shown in FIG. 7, regardless of the recommended route, the map 30 is displayed so that the background color of the map 30 in the updatable mesh regions 32g to 32j is different from the background color of other portions of the map. Also good. Thereby, the user can easily recognize which mesh region the mesh data that can be updated regardless of the recommended route belongs to. By making it possible to recognize in this way, it is possible to determine whether or not the map data stored in the data storage device 112 should be updated immediately. For example, if the updatable mesh area is in an area that does not affect the progress of the vehicle, it takes time to receive the updated mesh data, so that it is stored in the data storage device 112 when time is available. It can be determined to update the map data. On the other hand, if the updatable mesh area has an influence on the progress of the vehicle, it can be determined that it is necessary to immediately update the map data even if it takes time to receive the updated mesh data. . In this case, the mesh ID of the mesh data in the map data stored in the data storage device 112 is transmitted to the information center 2 using the communication device 111. Thereafter, using the communication device 111, the version information of each mesh ID of the mesh data stored in the data storage device 112 is received. Then, the background color of the map in the mesh area corresponding to the updateable mesh data or the mesh itself is changed.

(3) When any of the updatable mesh regions 32g to 32j is pressed, the mesh data stored in the data storage device 112 corresponding to the mesh regions 32g to 32j is updated. However, when any of the updatable mesh regions 32g to 32j is pressed, only the mesh data stored in the data storage device 112 corresponding to the pressed mesh region 32h may be updated. Thereby, the user can select and update only necessary mesh data among the mesh data stored in the data storage device 112, and the convenience of the navigation device 1 is improved. Further, when any of the updatable mesh regions 32g to 32j is pressed, the updatable mesh among the mesh data corresponding to the pressed mesh region 32h and the mesh region adjacent to the pressed mesh region 32h. The mesh data corresponding to the mesh regions 32g and 32i having the roads connected to the roads in the mesh region 32h, which are the regions 32g and 32i, may be updated. Thereby, it is possible to prevent the road from being interrupted at the boundary between the two mesh regions (the boundary between the mesh region 32h and the mesh region 32g or the boundary between the mesh region 32h and the mesh region 32i).

(4) The navigation apparatus 1 may not request mesh data from the information center 2 for mesh areas where the recommended route has passed and the vehicle has already passed among the updatable mesh areas. This is because the mesh data of the mesh area where the vehicle has already passed is not necessary for the search for the recommended route, and the time for receiving the mesh data can be shortened by not requesting such mesh data. In this case, the navigation apparatus 1 may not transmit the mesh ID of the mesh data corresponding to the mesh area through which the vehicle has already passed to the information center 2, or the mesh data corresponding to the mesh area through which the vehicle has already passed is stored. The background color of the map in the mesh area corresponding to the updatable mesh data or the mesh itself may not be changed.

(5) When the user presses any one of the mesh areas 32g to 32j having different map background colors, the navigation device 1 updates the mesh data corresponding to the mesh areas 32g to 32j. However, as long as the user causes the navigation device 1 to update the map data stored in the data storage device 112 at his / her own judgment, the present invention is not limited to the embodiment. For example, when the user presses a predetermined button displayed on the display monitor 16 or a hard switch provided around the display screen of the display monitor 16, the navigation device 1 receives an instruction to update the map data, and the data storage device 112. You may make it update the map data memorize | stored.

(6) Although the navigation apparatus 1 detects the updatable mesh data stored in the data storage device 112, the information center 2 may detect the updatable mesh data. In this case, the navigation device transmits version information to the information center 2 in addition to the mesh ID. The information center 2 detects updatable mesh data stored in the data storage device 112 based on the mesh ID and the version information transmitted from the navigation device 1.

  The above description is merely an example, and the present invention is not limited to the above embodiment.

The correspondence between the elements of the claims and the embodiments will be described.
The map display control means of the present invention corresponds to the control circuit 11, and the storage means corresponds to the data storage device 112. The receiving means corresponds to the communication device 111, and the updating means corresponds to the control circuit 11 and the data storage device 112. The search means corresponds to the control circuit 11, and the instruction means corresponds to the control circuit 11, the touch panel 19 and the touch panel control unit 110. The above description is merely an example, and the interpretation of the invention is not limited to the correspondence between the constituent elements of the above-described embodiment and the constituent elements of the present invention.

It is a figure for demonstrating the map update system of embodiment of this invention. It is a block diagram which shows the structure of the navigation apparatus of embodiment of this invention. It is a figure for demonstrating the update operation of the map data in embodiment of this invention. It is a flowchart for demonstrating the update process of the map data in the embodiment of this invention, and the search process of the recommended path | route using the updated map data. It is a figure for demonstrating the modification of the method of making the display mode of the mesh area | region corresponding to the mesh data which can be updated different from the display mode of another mesh area | region. It is a figure for demonstrating the modification of the method of making the display mode of the mesh area | region corresponding to the mesh data which can be updated different from the display mode of another mesh area | region. It is a figure for demonstrating the modification of update operation of map data.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 2 Information center 3 Network 16 Display monitor 19 Touch panel 21 Server 22, 111 Communication apparatus 32a-32o Mesh area | region 111 Communication apparatus 112 Data storage apparatus

Claims (11)

Display control means for displaying a mesh on a display monitor overlaid on a map;
Storage means for storing map data composed of mesh data partitioned by mesh and created corresponding to each partition;
A receiving means for receiving updated updated mesh data from the outside;
Updating means for updating the map data stored by the storage means using the updated mesh data received by the receiving means,
Prior to receiving the updated mesh data by the receiving means, the display control means changes the display mode of the mesh corresponding to the mesh data that can be updated using the updated mesh data or the display mode in the mesh of another mesh. A navigation device, wherein the mesh or the inside of the mesh is displayed differently from the display mode or the display mode within the mesh. The navigation device according to claim 1, wherein
Before receiving the updated mesh data, the receiving means receives determination information for determining a mesh corresponding to the updatable mesh data from the outside;
The navigation device according to claim 1, wherein the display control means displays the mesh or the inside of the mesh based on the determination information. The navigation device according to claim 2, wherein
Comprising identification information transmitting means for transmitting identification information for identifying mesh data stored in the storage means,
The navigation apparatus according to claim 1, wherein the receiving means receives determination information transmitted based on the identification information transmitted by the identification information transmitting means. The navigation device according to any one of claims 1 to 3,
Search means for searching for a recommended route using the map data stored by the storage means,
The display control means displays the recommended route searched by the search means so as to overlap the map, and corresponds to the updatable mesh mesh data among mesh data corresponding to the mesh through which the recommended route passes. A navigation apparatus characterized by displaying a mesh so that a display mode of a mesh or a display mode in a mesh is different from a display mode of another mesh or a display mode in a mesh. The navigation device according to claim 4, wherein
The navigation apparatus according to claim 1, wherein the display control means does not display a mesh through which the vehicle has passed among the meshes through which the recommended route passes, different from a display mode of other meshes or a display mode in the mesh. The navigation device according to claim 3,
Search means for searching for a recommended route using the map data stored by the storage means,
The identification information transmitting means transmits identification information for identifying mesh data corresponding to a mesh through which the recommended route passes from among mesh data stored in the storage means,
The display control unit displays the recommended route searched by the search unit over the map, and mesh corresponding to the updatable mesh data among mesh data corresponding to the mesh through which the recommended route passes. A display device for displaying the mesh so that the display mode in the mesh or the display mode in the mesh is different from the display mode in other meshes or the display mode in the mesh. The navigation device according to claim 6, wherein
The navigation apparatus characterized in that the identification information transmitting means does not transmit identification information for identifying mesh data corresponding to a mesh through which a vehicle has passed among meshes through which the recommended route passes. The navigation device according to any one of claims 4 to 7,
Instructing means for instructing update of the map data stored by the storage means,
The receiving means receives update mesh data corresponding to a mesh through which the recommended route passes when an instruction to update map data is given by the instruction means;
The updating means updates the map data stored by the storage means using the updated mesh data received by the receiving means,
The search means re-searches a recommended route using the map data updated by the update means,
The navigation apparatus according to claim 1, wherein the display control means displays the recommended route re-searched by the search means on the map. The navigation device according to any one of claims 1 to 3,
Instructing means for instructing update of mesh data corresponding to the mesh pressed in the mesh corresponding to the mesh data to be updated,
The navigation device according to claim 1, wherein the receiving unit receives only mesh data instructed by the instructing unit. The navigation device according to claim 9, wherein
The navigation device further receives updated mesh data corresponding to a mesh having a road adjacent to the pressed mesh and connected to a road in the pressed mesh. The navigation device according to any one of claims 1 to 10,
The display control means displays a mesh corresponding to the updatable mesh data by displaying the background color of the map in the mesh corresponding to the updatable mesh data different from the background color of the map in the other mesh. By displaying the inside of the mesh so that the display mode in is different from the display mode in the other mesh, or displaying the mesh frame corresponding to the updatable mesh data thicker than the frame of the other mesh, A navigation device that displays a mesh so that a mesh display mode corresponding to the updatable mesh data is different from a display mode of other meshes.

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