JP2007093552A - Navigation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation apparatus that can decide timing for each user acquiring current map data. <P>SOLUTION: The navigation apparatus 100 implements a predetermined navigation operation, based on the map data, and the navigation apparatus 100 includes a road information obtaining section 40 for obtaining road profile data regarding the road along with advertisement information on the road, when a new road is constructed, a section 46 for determining timing, when advertisement information is displayed which displays the advertisement information corresponding to the road profile data with a predetermined displaying timing, an advertisement information rendering section 48, and a display processing section 70. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a navigation device that displays a map around a vehicle position based on stored map information.

  In general, an in-vehicle navigation device has a map display function for displaying a map of the vicinity of a vehicle position on a screen, a route search function for searching a route to a destination or waypoint specified by a user, a route search A route guidance function that guides driving of the vehicle along the route determined by, or a facility guidance function that displays a mark indicating the location of various facilities on a map or displays information related to those facilities, etc. It has various functions. Usually, each of these functions is realized by performing predetermined processing using map data provided by a disk-type recording medium such as a DVD or a CD.

The map data described above is updated to the latest contents as appropriate by a specific manufacturer or the like who creates or maintains the map data, and reflects the latest road conditions. The updated map data can be acquired by purchasing the latest DVD or the like, but recently, a navigation device that can acquire update information of map data and other advertisement information by communication has also been proposed. (For example, refer to Patent Document 1).
JP 2002-48566 A (page 4-9, FIG. 1-16)

  By the way, in the navigation device of Patent Document 1, it is possible to acquire the latest map data by communication, but if all the updated information is to be acquired, the amount of information increases. For example, when communication is performed using a mobile phone that is charged according to the communication time, if the amount of information to be acquired increases, the communication time becomes longer and the telephone fee is also increased. Moreover, it is considered that there is not much utility value even if information on roads where the user does not travel at all is acquired. Therefore, it is convenient if each user can determine whether or not the information is useful for himself and determine the acquisition timing.

  Further, since the navigation device of Patent Document 1 can also receive advertisement information, it may be possible to receive the latest DVD sales status as advertisement information and replace the DVD itself with the latest version. If the advertisement information includes the date of sale of the latest version of DVD, version information, update contents for the previous version, etc., the user confirms these contents to determine whether or not the latest version of the DVD has been purchased. Can be helpful to determine. However, in reality, each user does not know what kind of merit he can see even if he sees such advertisement information, so there are few users who decide to purchase the latest board DVD by looking at the advertisement information. Usually, the old version DVD is usually used continuously with some inconvenience. Therefore, even when a recording medium such as a DVD is purchased and the map data is updated, each user determines whether it is the latest version of the DVD or the like containing useful information and determines the acquisition timing. It is convenient if you can.

  The present invention was created in view of the above points, and an object of the present invention is to provide a navigation device that can determine the timing for acquiring the latest map data for each user. is there.

  In order to solve the above-described problem, the navigation device of the present invention performs a predetermined navigation operation based on map data, and when a new road is established, the road shape data related to the road is advertised. Road information acquisition means for acquiring information together with information, and advertisement information display means for displaying advertisement information corresponding to road shape data at a predetermined display timing. When using the navigation device, the most inconvenient thing when the map data becomes old is that the road shape is not suitable for the current situation. In the present invention, when a road is newly established, road shape data and advertisement information relating to this road can be acquired, so that at least the latest road shape can be confirmed. It is easy to determine whether or not it is necessary to acquire the latest map data including the road that has been used.

  The road shape data described above is preferably map data used for map image drawing processing. Alternatively, the road shape data described above is preferably map data used for map image drawing processing and map matching processing for correcting the vehicle position. The vehicle further includes a vehicle position detecting means for detecting the traveling position of the vehicle, and the display timing is when the vehicle position detected by the vehicle position detecting means matches the position on the road specified by the road shape data. Is desirable. Alternatively, it is desirable that the display timing described above is when the road specified by the road shape data is included in the map image to be displayed. Thereby, the user can determine whether or not it is necessary to acquire the latest map data only by looking at the road shape included in the map image displayed during actual vehicle travel.

  The display timing described above is preferably when a predetermined operation for instructing display of the advertisement information is performed by the user. Accordingly, the user can determine whether or not the latest map data needs to be obtained by looking at the advertisement information about the newly established road at an arbitrary timing.

  Moreover, it is preferable that the advertisement information display unit described above does not display the advertisement information before the predetermined time elapses from the previous display for the same road shape data. Thereby, the troublesomeness in the case where advertisement information is frequently displayed can be avoided.

  In addition, a communication means using a wireless line is further provided, and the road information acquisition means acquires the advertisement information by receiving the road shape data and advertisement information distributed at a predetermined distribution timing using the communication means. It is desirable to do. By obtaining road shape data and advertisement information via a wireless line using a mobile phone, a wireless LAN, or the like, it is possible to always obtain the latest information.

  Further, it is desirable that the distribution timing described above is immediately after the key switch of the vehicle is turned on and communication by the communication means becomes possible. This makes it possible to reliably acquire the latest information every time the navigation device is used.

  The distribution timing described above is preferably when the user gives an instruction to acquire road shape data and advertisement information. Thereby, the frequency | count of acquiring the newest information can be reduced, and the expense concerning information acquisition can be reduced.

  Further, the map data described above is provided in a state of being stored in a removable recording medium, and the advertisement information includes information necessary for acquiring a recording medium including the corresponding road shape data. It is desirable that Thus, the user can accurately determine the purchase timing of a recording medium such as a DVD in accordance with his / her convenience.

  Further, the road corresponding to the road shape data described above further includes detailed information acquisition means for acquiring detailed information other than the road shape data, and the detailed information acquisition means displays the advertisement information by the advertisement information display means. It is desirable to acquire the detailed information later when a predetermined operation instructing acquisition of the detailed information is performed by the user. Accordingly, the user can accurately determine the acquisition timing of detailed information other than the road shape data according to his / her convenience as necessary.

  Hereinafter, a navigation device according to an embodiment to which the present invention is applied will be described with reference to the drawings. FIG. 1 is a diagram illustrating a configuration of a map update information distribution system including a navigation device according to an embodiment. The map update information distribution system shown in FIG. 1 includes a navigation device 100 mounted on each vehicle, and a map update information distribution server 200 that provides update information about map data held by the navigation device 100. Yes. The navigation device 100 and the map update information distribution server 200 are connected via a predetermined network 300. Note that the network 300 in this embodiment includes various communication networks such as a mobile telephone network and the Internet. In addition, it is assumed that the navigation apparatus 100 and the network 300 are connected using, for example, a mobile phone as a mobile phone provided in the vehicle.

  Next, a detailed configuration of the navigation device 100 will be described. FIG. 2 is a diagram showing a detailed configuration of the navigation device 100. A navigation device 100 shown in FIG. 2 includes a navigation controller 1, a DVD 2, a disk reading device 3, a remote control (remote control) unit 4, a vehicle position detection unit 5, a display device 6, and an audio unit 7.

  The navigation controller 1 controls the entire navigation device 100. The navigation controller 1 realizes its function by executing a predetermined operation program using a CPU, ROM, RAM, or the like.

  The DVD 2 is an information recording medium that stores map data necessary for performing various navigation operations such as map display, facility search, and route search. FIG. 3 is a diagram showing a basic configuration of map data. As shown in FIG. 3, the map data recorded on the DVD 2 includes management section data, map drawing data, road shape data, road network data, guidance data, POI (Point of Interest) data, and search data. ing. “Management section data” includes management information such as the version of the DVD 2. “Map drawing data” includes data necessary for map drawing. The “road shape data” includes data used for road matching and map matching processing for correcting the vehicle position. The “road network data” includes data necessary for route search processing. The “guidance data” includes data necessary for the guidance operation at the time of route guidance. “POI data” includes data necessary for searching for nearby facilities. “Search data” includes data necessary for various information searches. This DVD 2 stores map data in units of rectangular figure leaves divided into appropriate sizes by longitude and latitude. The map data of each leaf can be specified and read by designating the leaf number.

  The disc reader 3 can be loaded with one or more DVDs 2 and reads map data from any of the DVDs 2 under the control of the navigation controller 1. The loaded disc is not necessarily a DVD but may be a CD. Further, both DVD and CD may be selectively loaded.

  The remote control unit 4 includes a joystick for designating directions such as up, down, left, and right, and various operation keys such as a numeric keypad for inputting numbers and a “decision key” for confirming various settings. A signal is output to the navigation controller 1.

  The vehicle position detection unit 5 includes, for example, a GPS receiver, an orientation sensor, a distance sensor, and the like, detects the vehicle position (longitude, latitude) at a predetermined timing, and outputs detection data.

  The display device 6 displays various images such as a map image around the vehicle position and a search result of surrounding facilities based on the drawing data output from the navigation controller 1. The audio unit 7 outputs a guidance voice or the like generated based on the voice signal input from the navigation controller 1 into the vehicle interior.

  As shown in FIG. 2, the navigation controller 1 described above includes a map buffer 10, a map readout control unit 12, a map drawing unit 14, a vehicle position calculation unit 20, a route search processing unit 30, a guidance route drawing unit 32, a voice, and the like. Includes a guide unit 34, a search unit 36, a road information acquisition unit 40, a communication processing unit 42, a road information storage unit 44, an advertisement information display timing determination unit 46, an advertisement information drawing unit 48, an input processing unit 60, and a display processing unit 70. It consists of

  The map buffer 10 temporarily stores map data read from the DVD 2 by the disk reader 3. The map reading control unit 12 outputs a request for reading a predetermined range of map data to the disk reading device 3 in accordance with the vehicle position calculated by the vehicle position calculating unit 20 and an instruction from the input processing unit 60. The map drawing unit 14 uses map drawing data and road shape data included in the map data stored in the map buffer 10 (if road shape data is stored in the road information storage unit 44, this road shape data is also used. ) Is used to perform drawing processing necessary to display the map image to create map image drawing data.

  The vehicle position calculation unit 20 calculates the vehicle position based on the detection data output from the vehicle position detection unit 5, and if the calculated vehicle position is not on the road of the map, the road included in the map data Map matching processing is performed to correct the vehicle position so that the road shape specified by the shape data matches the travel locus. In this map matching process, when road shape data is stored in the road information storage unit 44, this road shape data is also used.

  The route search processing unit 30 uses the road network data included in the map data to search for a travel route connecting the departure point and the destination according to a predetermined search condition as a guide route. The guide route drawing unit 32 generates guide route drawing data for displaying the guide route obtained by the search processing by the route search processing unit 30 so as to be superimposed on the map, and guide intersection drawing data in which the right / left turn intersection is enlarged. The voice guidance unit 34 generates voice signals such as intersection guidance necessary for guiding the vehicle along the guidance route obtained by the search processing by the route search processing unit 30 using the guidance data included in the map data. To do. The search unit 36 uses the POI data and search data included in the map data to search for various facilities and information that satisfy the search conditions specified by the user.

  The road information acquisition unit 40 performs processing for acquiring map update information from the map update information distribution server 200. For example, a map update information acquisition request is sent to the map update information distribution server at a predetermined distribution timing (acquisition timing), and map update information sent from the map update information distribution server 200 is acquired in response to this request. As specific examples of distribution timing, immediately after the key switch of the vehicle is turned on and the navigation apparatus 100 becomes communicable via the mobile phone 90, or the user gives an instruction to acquire map update information The time when it was done is considered. The map update information sent from the map update information distribution server 200 includes the latest data of the road shape data included in the map data, and the advertisement information regarding the content and acquisition method of the road shape data. The road information acquisition unit 40 sends a map update information transmission request to the map update information distribution server 200 via the communication processing unit 42 and receives map update information sent in response to the transmission request.

  The communication processing unit 42 performs processes necessary for various data communications for the navigation device 100 to acquire map update information from the map update information distribution server 200 via the network 300. A mobile phone 90 is externally attached to the communication processing unit 42. Instead of the mobile phone 90, wireless communication may be performed with the map update information distribution server 200 via an access point using a wireless LAN transceiver.

  The road information storage unit 44 stores the road update information acquired by the road information acquisition unit 40. The advertisement information display timing determination unit 46 determines the display timing of advertisement information acquired together with road shape data as road update information. For example, the vehicle position calculated by the vehicle position calculation unit 20 (the vehicle position after being corrected by the map matching process) matches the position on the road specified by the road shape data stored in the road information storage unit 44. When the road specified by the road shape data stored in the road information storage unit 44 is included in the map image to be displayed, or when a predetermined operation for instructing the user to display advertisement information is performed. The time when it was made is considered. Whether the road identified by the road shape data stored in the road information storage unit 44 is included in the map image to be displayed is determined by displaying the current vehicle position (or a map image at an arbitrary position). If it is, the center position etc.) and the current display scale can be easily determined by calculating the display range at that time. Moreover, even if the same advertisement information is repeatedly displayed, it is only annoying for the user. Therefore, for the same road shape data, the next advertisement information display is not performed before a predetermined time has elapsed since the previous advertisement information display. I have to. The advertisement information drawing unit 48 creates advertisement information drawing data for displaying the contents of the advertisement information determined to be the display timing by the advertisement information display timing determination unit 46.

  The input processing unit 60 outputs commands for performing operations corresponding to various operation instructions input from the remote control unit 4 to each unit in the navigation controller 1. For example, a map update information acquisition instruction or advertisement information display instruction by a user is performed using the remote control unit 4, and instructions corresponding to these instructions are input from the input processing unit 60 to the road information acquisition unit 40 or advertisement information display timing. It is sent to the determination unit 46.

  The display processing unit 70 receives the map image drawing data generated by the map drawing unit 14 and displays a predetermined range of map images on the screen of the display device 6 based on the drawing data. When the guidance route drawing data generated by the guidance route drawing unit 32, the guidance intersection drawing data, the advertisement information drawing data generated by the advertisement information drawing unit 48, or the like is input, the display processing unit 70 displays these drawing data. The data is superimposed on the map image and displayed on the screen of the display device 6.

  Next, the detailed configuration of the map distribution server 200 will be described. As shown in FIG. 1, the map distribution server 200 includes a server control unit 210, a map data DB (database) 220, and a communication processing unit 230.

  The server control unit 210 is for controlling the entire map update information distribution server 200 in order to distribute map update information to the navigation device 100, and includes an acquisition request reception unit 212, a map update information creation unit 214, A map update information transmission unit 216 is provided. The server control unit 210 has a configuration as a computer including a CPU, a ROM, a RAM, and the like, and performs a predetermined control operation by executing a predetermined program stored in the ROM or RAM.

  The acquisition request reception unit 212 receives an acquisition request for map update information sent from the navigation device 100 and performs processing for analyzing the acquisition request. For example, this acquisition request includes the version information of DVD 2 and the date and time when the previous map update information was acquired. Based on the analysis result of the acquisition request, the map update information creation unit 214 creates map update information including road shape data and advertisement information newly added after the previous map update information transmission. The map update information transmission unit 216 performs processing for transmitting map update information corresponding to the acquisition request sent from the navigation device 100 to the navigation device 100.

  Map data DB220 stores the map data corresponding to each version of DVD2, and stores the map update information added between each version with the addition date. The communication processing unit 230 performs processing necessary for the map update information distribution server 200 to perform data communication with the navigation device 100 via the network 300.

  The road information acquisition unit 40 described above is the road information acquisition unit, the advertisement information display timing determination unit 46, the advertisement information drawing unit 48, and the display processing unit 70 are the advertisement information display unit, the vehicle position detection unit 5, and the vehicle position calculation unit 20. Corresponds to the vehicle position detection means, and the communication processing unit 42 and the mobile phone 90 correspond to the communication means.

  The map update information distribution system including the navigation device 100 of the present embodiment has such a configuration, and the operation thereof will be described next.

  FIG. 4 is a flowchart showing an operation procedure for acquiring map update information in the navigation device 100. When the navigation device 100 starts operating, first, the road information acquisition unit 40 determines whether it is the acquisition timing of the map update information (step 100). If it is not the acquisition timing, a negative determination is made, and then the advertisement information display timing determination unit 46 determines whether it is the display timing of the advertisement information (step 101). If it is not the display timing of the advertisement information, a negative determination is made, and the process returns to step 100 to repeat the acquisition timing determination operation.

  Further, when the vehicle key switch is turned on and communication is possible via the mobile phone 90, or when acquisition of map update information is instructed by the user, the determination in step 100 is affirmative. Judgment is made. In this case, next, the road information acquisition unit 40 transmits an update map information acquisition request from the communication processing unit 42 to the map update information distribution server 200 via the mobile phone 90 (step 102). It is determined whether or not map update information has been received (step 103). A negative determination is made until reception is made, and a standby state for repeating this determination operation is entered. When the map update information sent from the map update information distribution server 200 is received, an affirmative determination is made in the determination of step 103, and the road information acquisition unit 40 stores the received map update information in the road information storage unit 44. (Step 104). Thereafter, the process returns to step 100 and the acquisition timing determination operation is repeated.

  FIG. 5 is a diagram showing a specific example of road shape data included in the map update information sent from the map update information distribution server 200. The road shape data includes a plurality of roads newly added since the last update of the map update information (if the update interval is short, there may be one or no target road). Contains road shape records. Each road shape record includes a coordinate point sequence, a road type, a link length, and a new open passage line number. The coordinate point sequence is array data of coordinates necessary for specifying the target road, and the coordinates of each node included in the road are used. The road type is data indicating the type of road. The link length is the sum of the lengths of a plurality of links constituting this road. The new open passage line number is a serial number corresponding to each newly added road. The data other than the new open passage line number is also included in the road shape data in the map data stored on the DVD 2. The new open passage line number is newly added this time in order to specify the corresponding advertisement information.

  FIG. 6 is a diagram illustrating a specific example of advertisement information included in map update information sent from the map update information distribution server 200. The advertisement information includes a header and a plurality of updated advertisement records (if there is only one newly added road, there is one updated advertisement record). The header includes version information, a store, and a contact address. The version information corresponds to the version of the DVD 2 when purchasing the DVD 2 corresponding to the latest map data. The dealer is information such as the shop name of a dealer that can purchase the latest version of the DVD 2, and the contact address indicates the contact telephone number and the like. The map update information is generated in the map update information distribution server 200 by including the position information of the vehicle on which the navigation device 100 is mounted in the acquisition request sent from the navigation apparatus 100 to the map update information distribution server 200. In this case, it is desirable to extract the nearest sales store and include it in the header of the advertisement information.

  In addition, the updated advertisement record includes a newly opened passage line number, a route name, a date of opening, and an updated version. The new open passage line number is the same as that included in each road shape record in the road shape data shown in FIG. 3, and is used for associating road shape data and advertisement information for the same road. When the road that is the display timing of the advertisement information is specified, an updated advertisement record in the advertisement information is extracted using the new open passage line number corresponding to the road as a search key.

  7 to 9 are diagrams illustrating an example of display timing. FIG. 7 shows a display example of the map image before the map update information is acquired. Moreover, the example of a display of the map image after acquiring map update information is shown by FIG. FIG. 9 shows a display example when a vehicle enters a newly opened road. Assume that road A shown in FIG. 8 is newly opened. When the road shape data corresponding to the road A is acquired and stored in the road information storage unit 44, the map drawing unit 14 is stored in the road information storage unit 44 when the road A is included in the drawing range. The image of the road A is drawn using the coordinate point sequence in the road shape record corresponding to the road A. As a result, a map image including the newly opened road A as shown in FIG. 8 is displayed. The newly opened road A is desirably displayed in a state where it can be distinguished from other roads, for example, by changing the color or display mode (highlight display, blinking, etc.). Thereafter, when the host vehicle travels and enters the road A, the vehicle position calculation unit 20 performs a map matching process based on the shape (coordinate point sequence) of the newly opened road A to obtain a position on the road A. Correct the vehicle position. In this way, when the vehicle position matches the position on the road specified by the road shape data stored in the road information storage unit 44, an affirmative determination is made in the display timing determination of step 101. Note that, as described above, even in other cases, when the road specified by the road shape data stored in the road information storage unit 44 is included in the map image to be displayed or the user When a predetermined operation for instructing the display of advertisement information is performed, an affirmative determination is made in the display timing determination of step 101.

  Next, the advertisement information drawing unit 48 draws the advertisement information (step 105), and the display information is displayed on the display device 6 by the display processing unit 70 (step 106). FIG. 10 is a diagram illustrating a display example of advertisement information. Based on the header in the advertisement information and various information included in the updated advertisement record, the advertisement information as shown in FIG. 10 is displayed. After the advertisement information is displayed, the process returns to step 100 and the acquisition timing determination operation is repeated.

  As described above, in the navigation device 100 of the present embodiment, when a road is newly established, road shape data and advertisement information relating to this road can be acquired, so at least the latest road shape can be confirmed. Thus, it becomes easy for the user himself / herself to determine whether or not it is necessary to acquire the latest map data including the newly established road. In particular, the user can determine whether or not it is necessary to obtain the latest map data simply by looking at the road shape included in the map image displayed during actual vehicle travel. Alternatively, the user can determine whether or not the latest map data needs to be obtained by looking at the advertisement information regarding the newly established road at an arbitrary timing. In addition, the display of advertisement information is not performed for the same road shape data before a predetermined time has elapsed since the previous display, thereby avoiding inconvenience when advertisement information is frequently displayed. Can do.

  In addition, by obtaining road shape data and advertisement information via a wireless line using a mobile phone 90 or a wireless LAN, it is possible to always obtain the latest information.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation implementation is possible within the range of the summary of this invention. For example, in the above-described embodiment, road shape data corresponding to a new road and advertisement information are distributed from the map update information distribution server 200 to prompt the user to purchase the latest version of the DVD 2. Updated map information including detailed data (including map drawing data, road network data, guidance data, POI data, and search data shown in FIG. 3) including road shape data. You may make it acquire from the map update information delivery server 200. FIG.

  FIG. 11 is a diagram illustrating an operation procedure of the navigation device 100 when acquiring detailed information including road shape data. The operation procedure shown in FIG. 11 is obtained by adding steps 107 to 110 to the operation procedure shown in FIG. After the advertisement information is displayed (step 1076, road information acquisition unit 40 (corresponding to the detailed information acquisition means), it is determined whether there is an instruction to acquire detailed information (step 107). "Update" button and "Details" button are displayed in the screen. By selecting these buttons (for example, after pressing the "OK" key after moving the cursor to these buttons using the remote control unit 4) If the acquisition instruction is not issued, a negative determination is made in the determination of step 107, and the process returns to step 100 to determine the acquisition timing. When the detailed information acquisition instruction is issued, an affirmative determination is made in the determination of step 107, and then the road information acquisition unit 40 After the detailed information acquisition request is transmitted to the map update information distribution server 200 (step 108), it enters a reception waiting state for determining whether or not the detailed information has been received (step 109). In 200, when this acquisition request for detailed information is received by the acquisition request receiving unit 212, the map update information generating unit 214 generates detailed information to be transmitted, and the map update information transmitting unit 216 stores the generated detailed information. The information is transmitted to the navigation device 100. When the road information acquisition unit 40 receives the detailed information sent from the map update information distribution server 200 in this way, the road information acquisition unit 40 makes an affirmative determination in Step 109 and receives the detailed information. Is stored in the road information storage unit 44. Thus, by displaying the advertisement information corresponding to the new road, the user needs Correspondingly, it is possible to determine accurately the combined detailed information other than road shape data acquisition timing to their convenience.

It is a figure which shows the structure of the map update information delivery system in which the navigation apparatus of one Embodiment is contained. It is a figure which shows the detailed structure of a navigation apparatus. It is a figure which shows the basic composition of map data. It is a flowchart which shows the operation | movement procedure which acquires map update information in a navigation apparatus. It is a figure which shows the specific example of the road shape data contained in the map update information sent from a map update information delivery server. It is a figure which shows the specific example of the advertisement information contained in the map update information sent from a map update information delivery server. It is a figure which shows an example of a display timing. It is a figure which shows an example of a display timing. It is a figure which shows an example of a display timing. It is a figure which shows the example of a display of advertisement information. It is a figure which shows the operation | movement procedure of the navigation apparatus in the case of acquiring the detailed information containing road shape data.

Explanation of symbols

1 Navigation controller 2 DVD
DESCRIPTION OF SYMBOLS 3 Disc reader 4 Remote control unit 5 Vehicle position detection part 6 Display apparatus 7 Audio part 10 Map buffer 12 Map reading control part 14 Map drawing part 20 Vehicle position calculation part 30 Route search process part 32 Guidance route drawing part 34 Voice guidance part 40 Road information acquisition unit 42, 230 Communication processing unit 44 Road information storage unit 46 Advertisement information display timing determination unit 48 Advertisement information drawing unit 60 Input processing unit 70 Display processing unit 90 Mobile phone 100 Navigation device 200 Map update information distribution server 210 Server control Unit 212 Acquisition Request Receiving Unit 214 Map Update Information Creating Unit 216 Map Update Information Transmitting Unit 220 Map Data DB
300 network

Claims (12)

A navigation device that performs a predetermined navigation operation based on map data,
Road information acquisition means for acquiring road shape data related to this road together with advertisement information related to this road when there is a new road;
Advertisement information display means for displaying the advertisement information corresponding to the road shape data at a predetermined display timing;
A navigation device comprising: In claim 1,
The navigation apparatus according to claim 1, wherein the road shape data is the map data used for map image drawing processing. In claim 1,
The navigation apparatus according to claim 1, wherein the road shape data is the map data used for a map matching process for drawing a map image and correcting a vehicle position. In any one of Claims 1-3,
Vehicle position detection means for detecting the traveling position of the vehicle,
The navigation apparatus according to claim 1, wherein the display timing is when the vehicle position detected by the vehicle position detection means coincides with a position on the road specified by the road shape data. In any one of Claims 1-3,
The navigation apparatus according to claim 1, wherein the display timing is when a road identified by the road shape data is included in a map image to be displayed. In any one of Claims 1-3,
The navigation apparatus according to claim 1, wherein the display timing is when a predetermined operation for instructing display of the advertisement information is performed by a user. In any one of Claims 1-6,
The navigation apparatus characterized in that the advertisement information display means does not display the advertisement information for the same road shape data before a predetermined time elapses from the previous display. In any one of Claims 1-7,
A communication means using a wireless line;
The navigation apparatus characterized in that the road information acquisition means acquires the advertisement information by receiving the road shape data and the advertisement information distributed at a predetermined distribution timing using the communication means. In claim 8,
2. The navigation apparatus according to claim 1, wherein the delivery timing is immediately after the key switch of the vehicle is turned on and communication by the communication means becomes possible. In claim 8,
2. The navigation apparatus according to claim 1, wherein the distribution timing is when a user gives an instruction to acquire the road shape data and the advertisement information. In any one of Claims 1-10,
The map data is provided in a state stored in a removable recording medium,
The navigation apparatus, wherein the advertisement information includes information necessary for acquiring the recording medium including the corresponding road shape data. In any one of Claims 1-10,
Detailed information acquisition means for acquiring detailed information other than the road shape data for the road corresponding to the road shape data,
The detailed information acquisition means acquires the detailed information when a predetermined operation for instructing acquisition of the detailed information is performed by a user after the advertisement information is displayed by the advertisement information display means. A navigation device characterized by that.

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