JPH10105049A - Navigator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need to make all of map information original by setting a 1st recording area for storing existent base maps and a 2nd recording area for storing original maps on a storage medium. SOLUTION: In the storage area of a digital versatile disk(DVD) 10, base map data of an area 0 are stored in an area 80, base maps are stored in an area 82 as a 1st storage area, and original maps are stored in an area 84 as a 2nd storage area. The area 82 is divided by areas and for example, "base map data of an area 1 and base service data', 'base map data of an area 2 and base service data', etc., are stored, area by area. The area 84 is also divided by the areas and, for example, 'original map data of the area 1 and original service data', etc., are stored, area by area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a navigation device and a storage medium related to the navigation device.

[0002]

2. Description of the Related Art At present, a navigation device mounted on a vehicle mainly shows a vehicle position on a map and sets an optimum route to a destination. It has become. Recently, VI
Optical beacon, radio beacon and MF from CS Center
Those that receive traffic information via multiplex broadcasting and can travel around congested roads have also become widespread. Also,
A system in which various types of traffic information can be obtained in real time from an ATIS center or the like using an in-vehicle telephone is also used. Further, Japanese Patent Application Laid-Open No. 8-87234 discloses that even if an in-vehicle navigation device does not have a map database, detailed map information can be obtained from an information center via a road infrastructure. Even if you have a map database,
There is disclosed an apparatus which can display accurate composite map information by obtaining the latest information from an information center.

[0003]

However, among the conventional navigation devices, an external information center, etc.
All the types that obtain specific information (traffic information, parking lot information, map information, etc.) were all obtained uniformly, so users should select and obtain only necessary information. Was difficult. The map information is image information, and a large amount of map information is uniformly recorded on a CD.
-Storing in a storage medium such as a ROM is not practical because of its limited storage capacity. For this reason, if the user can select only necessary information and create an original map, the convenience when using the navigation device is improved. However, originalizing all the map information requires a great deal of effort and is not practical. Further, there is a limitation on the storage capacity of the storage medium. Thus, there is a need for a navigation device that can create an original map by selecting only the necessary information without the need to make all the map information original.

Accordingly, the present invention has been made to satisfy the above-mentioned conventional needs, and allows a user to select and obtain only necessary information from an external information center to create an original map, It is an object of the present invention to provide a navigation device and a storage medium with improved convenience so that map information does not need to be converted into an original.

[0005]

According to one aspect of the present invention, there is provided a navigation system capable of storing an original map created by a user as needed in a writable storage medium. A device,
A first recording area for storing an existing base map and a second recording area for storing the original map are set in the storage medium. The present invention according to claim 2 is the navigation device according to claim 1,
The first storage area cannot be erased. The present invention according to claim 3 is the navigation device according to claim 1, wherein the original map is set in the same area unit as the base map.

According to a fourth aspect of the present invention, in the navigation device according to the third aspect, when both the original map and the base map are set in the same area, the original map is preferentially displayed. . According to a fifth aspect of the present invention, in the navigation device according to the third aspect, when both the original map and the base map are set in the same area, one of them is displayed according to the selection of the user. According to a sixth aspect of the present invention, there is provided the navigation device according to the first aspect, wherein the original map includes original map data, and the original map data is set at a low scale to be a detailed map. Claim 7
According to the present invention, the original map is set by overlapping the original map data and the original service data.

The present invention according to claim 8 is the navigation device according to claim 1, wherein the base map includes base map data, and the original map is obtained by superimposing the base map data and original service data. Is set. According to a ninth aspect of the present invention, there is provided a writable storage medium on which a user can store a program for creating an original map as needed by a navigation device, wherein the storage medium has an existing base map. Is set, and a second recording area for storing the original map is set. The invention according to claim 10 is the invention according to claim 9
2. The storage medium according to claim 1, wherein the first storage area is not erasable.

According to an eleventh aspect of the present invention, in the storage medium according to the ninth aspect, the original map is set in the same area unit as the base map. According to a twelfth aspect of the present invention, in the storage medium according to the ninth aspect, the program preferentially displays the original map when both the original map and the base map are set in the same area. It is characterized by having According to a thirteenth aspect of the present invention, in the storage medium according to the ninth aspect, when both the original map and the base map are set in the same area, one of the programs is selected by a user. Is displayed. According to a fourteenth aspect of the present invention, in the storage medium according to the ninth aspect, the original map includes original map data, and the original map data is set at a low scale to be a detailed map.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, the present invention relates to a vehicle-mounted navigation device or a personal computer at home.
The user selects only necessary map information (image information for display, service information, map part image information, etc.) and obtains it from an external information center or the like via communication means. A portable and writable large-capacity storage medium called a disk (IC card, CD-ROM, MO, PD, DV
D) etc., and this storage medium is used in an in-vehicle navigation device to realize a comfortable car life. Such an embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an overall configuration diagram showing an overall system related to creating an original map according to the present invention. As shown in FIG. 1, the entire system includes a personal computer 1 placed in a home (home) or office, an information center 2 for providing various map information necessary for driving a vehicle, and a VICS FM multiplex broadcasting equipment 4 (which may be an optical beacon, a radio beacon, or an in-vehicle mobile phone), a vehicle 6 equipped with a navigation device, a GPS satellite 8 for providing position information for detecting the current position of the vehicle, various maps. It is composed of a portable writable mass storage medium 10 for storing.

Here, the writable mass storage medium 10 is
It is a removable disk such as an IC card, a CD-ROM, an MO, a PD, and a DVD.
A D (Digital Versatile Disc) 10 will be described as a typical example of a large-capacity writable storage medium. The basic concept underlying the present invention will be described with reference to FIG. As shown in FIG. 1, first, by using a personal computer 1 at home or the like, only map information considered necessary is selected and obtained from outside, and this map information is edited and processed to obtain original map information. Is created. At this time, commercially available map information is used as the base map information, and other necessary information is obtained from the above-mentioned information center 2 via the communication means. The base map information may be obtained from the information center 2. Furthermore, this DVD10
May include personal information of the user in addition to the map information. Thereafter, when actually required, the user inserts the DVD 10 into a navigation device mounted on the vehicle 6 and uses the stored information as necessary.

Also, a DV storing original map information
In addition to using the personal computer 1 at home or the like, D10 can also be created by a navigation device mounted on the vehicle 6 via a mobile phone or the like. Traffic information (traffic jam information and parking lot information) and various service information (restaurant information, etc.) include real-time information, so if you need to obtain such information, ,
It will be obtained by an in-vehicle navigation device.
FIG. 2 is a block diagram showing the entire system of the on-vehicle navigation device. In FIG. 2, a navigation device 12 mounted on a vehicle 6 includes a navigation device body 14, an optical beacon communicator 15 capable of bidirectional communication with an optical beacon, and a centralized control unit (TDM) 1.
6, multi-display 18, head-up display 20, voice interaction switch 22 (speaker 22a, microphone 22b) for voice input and output of driver,
It comprises an operation switch 24, a mobile phone 26 for requesting necessary map information from the external information center 2 and receiving the requested map information from the information center 2, a DVD 10 for storing map information and the like.

The multi-display 18 displays a meter, an external monitor, a warning, an audio, etc., in addition to the navigation display. In addition to the navigation display, the head-up display 20 displays a vehicle speed, a warning display, an inter-vehicle distance, and the like. The operation switch 24 is used by the driver to change such various kinds of display contents. Further, by the voice interaction switch 22,
Such an operation is also possible. Further, the mobile phone 26 for obtaining information from outside is not limited to this, and may be a vehicle-mounted car phone or other wireless communication means. In such a navigation device 12, the navigation device body 1
4 requests the map information required for the information center 2 by the mobile phone 26, receives the necessary map information transferred from the information center 2 by the mobile phone 26 in response to the request, and
Store in VD10. In addition to this, the FM multiplex broadcasting equipment 4 (or an optical beacon or a radio beacon) transmits
Traffic information (traffic jam, construction, accident, parking lot information, etc.) as S information is obtained and stored, or necessary information is obtained from information stored in the DVD 10 in advance. The obtained information is output to the central control unit 16 and displayed on the multi-display 18 and the head-up display 20. At this time, a voice explanation may be given by the voice interaction switch 22.

Here, the head-up display 20
Is an image on a windshield, which is very effective for safety because a driver can see necessary information without distracting his / her eyes. FIG. 3 is a plan view of the vehicle, specifically showing a navigation device mounted on the vehicle. FIG. 3 shows the navigation device body 14 and the centralized control unit (TD
M) 16, a multi-display device 18, a head-up display 20, a voice guide speaker 22a and a microphone 22b, and an operation switch 2 constituting a voice dialogue switch 22 for voice input and output of a driver.
4, a mobile phone 26 and a DVD 10 are shown. In addition to the above, the vehicle 6 has, on the dash panel side in front of the cabin, a data drive device 28 for inserting the DVD 10 and a RAM storing personal information such as a seat position.
A RAM card device 30 for inserting a card is provided.

On the other hand, on the rear side of the vehicle 6, a mobile phone antenna 32 and a VICS compatible FM multiplex broadcast tuner 3 are provided.
4, an FM antenna 36, a GPS antenna 38 for obtaining position information from a GPS satellite 8, and a DVD changer 40 are mounted. Next, a method of creating an original DVD storing information required by the user will be described with reference to FIGS.
This will be described with reference to FIG. First, FIG. 4 is a diagram for explaining a method of selecting necessary information using a vehicle-mounted navigation device. First, the information center 2 manages various map information including base map information and service information. As the base map information, there are "Chugoku-Shikoku version", "Hiroshima city house map", "Kyushu version", "National main highways (national version)" as shown in Fig. 4, etc. There is information (sightseeing information / restaurants, etc.).
Of these map information, the user requests only the map information necessary for the user from the information center 2 using the on-board mobile phone 26 as described above. , The requested map information is transferred, and the navigation device 24
The request map information is received and loaded on the DVD 10.

In addition, the original personal computer 1
The same applies to the case where D is created. However, when transferring a large amount of information via the communication means, the use of the personal computer 1 at home may cause interruption during data transfer as compared with the case of using the on-board navigation device. Furthermore, since a high-speed communication line such as an optical cable or a high-speed modem is used, high-speed communication is possible. For this reason, when acquiring a large amount of map information including image information such as base map information, it is necessary to use a personal computer 1 at home to prevent interruption during data transfer and to reduce communication costs. Is desirable. On the other hand, when it is desired to store real-time information such as traffic information (traffic congestion, road regulation, parking lot fullness information), it is general to use the on-vehicle navigation device 12 on the go.

More specifically, as shown in FIG. 5, in step S1, a base map is first selected. Specifically, for example, if the user lives in Hiroshima City, only the map data that the user deems necessary is included in the base map information of the "Chugoku-Shikoku version" and the base map information of the "Hiroshima City Housing Map". Is selected as the base map (see FIG. 4). Next, in step S2, the user selects an additional map determined to be necessary. In this case, for example, "Kyushu version"
Only the map data that the driver deems necessary among "national highways nationwide (national version)" is selected as an additional map. Next, in step S3, a database that the driver considers necessary, for example, a part of "tourist information / restaurant" is selected from various service information including traffic information.
At this time, if the personal computer 1 is at home, the remaining capacity of the DVD 10 is displayed on the display screen as shown in FIG. For this reason, the personal computer operator can determine whether more data can be stored. Therefore, when another data is to be further stored, the process returns to step S1 and the same operation is performed. On the other hand, if additional storage is not possible due to the remaining capacity or if it is determined that storage of necessary information has been completed, the process proceeds to the next step S5, where the “base” selected in these steps S1, S2, and S3 is selected. map",
The data of the “additional map” and the “service information” are stored, and the creation of the original DVD 10 is completed.

Next, the contents of the base map information, traffic information, and various kinds of service information stored as the map information in this manner will be specifically described with reference to FIG. These pieces of map information are input in a predetermined format and stored in a database so that they can be used in a navigation device. These pieces of information always include an "area" indicating the location, and for information requiring an accurate location such as service information, include "coordinates" indicating the location. Here, this “coordinate” is defined as longitude (East
Minute ○ second) and latitude (north latitude ○ degree ○ minute ○ second). As described above, since the “area” and the “coordinates” are included in the database, the service information and the like are superimposed and displayed on the base map, so that the position can be accurately displayed. ing.

As described above, these databases can be obtained from the information center 2 via communication means. The information center 2 functions as an information provider and merely manages these databases, and each data provider updates the data of the data as necessary. With reference to FIG. 7, only representative ones of these databases will be described. A is "base map information", which includes "scale" and "area", "scale" represents a plurality of base map information having different scales, and "area" is the base map information. Area. B is “traffic information” and includes “area”, “traffic regulation”, and “congestion information”. Further, except for the “base map information” and the “traffic information”, all are service information, “accommodation facilities” represented by C, “shopping” represented by D, and “restaurants represented by E”. And the like.

A specific description will be given. “Accommodation facilities” represented by C include “Area”, “Category”, “Name”, “Location”, “Contact information”, “Accommodation fee”, “Capacity”, “Facility”, “Parking lot” (Presence / capacity), "Introduction article",
“Image image” and “coordinates” are included. “Shopping” represented by D includes “area”, “classification”, “store name”, “products”, “location”, “contact information”, “business hours / regular holidays”, “parking lot”. (Presence / accommodation number) "," Introduction article "," Image image "and" Coordinate "
Is included. In addition, the "restaurant" represented by E
“Area”, “Category”, “Store name”, “Location”, “Contact information”, “Business hours / regular holidays”, “Price range”, “Capacity”, “Parking lot (presence / capacity)”, "menu",
“Introduction article”, “image image”, and “coordinates” are included.

The service information further includes “financial institution”, “GS (gas station)”, “parking lot”,
"Medical institutions", "convenience stores (convenience stores)", "public institutions" (including "city halls", "police stations" and "fire stations"), "sports facilities"("skiing","skating") , “Gymnasium / pool”, “Golf”, “Bowling”, “Tennis court”, etc.), “Amusement” (“Amusement park”, “Movie theater”, “Park” and “Zoo / botanical garden / aquarium” Etc.), "transportation" (including "JR / private railways", "route buses", "airplanes", "highways" and "ships"), "houses", "cultural facilities"(" Museums, museums, and libraries), and tourist information
(Including "hot spring", "kua house", and "sightseeing spots"). Here, the “house” information is information for indicating the position of an individual house, a company office, or the like.

FIG. 8 shows the “restaurant” represented by E in FIG.
FIG. 3 is a diagram showing specific contents of various types of information included in the database of FIG. As shown in FIG. 8, "area",
The specific contents of "classification", "shop name", "location" ... and "coordinates" are entered in a predetermined format and stored in a database, and "coordinates" are represented by longitude and latitude. Have been. FIG. 9 is a diagram showing display contents on a display and an operation method when the various kinds of information are selected as necessary to create the original DVD 10. This work can be performed by both the personal computer 1 at home and the navigation device 12 mounted on the vehicle. When using the personal computer 1 at home, "O"
The instruction such as "K" is performed by using a mouse, and when the in-vehicle navigation device 12 is used, the instruction is performed by pressing a touch panel on a display.

Hereinafter, a specific description will be given with reference to FIG. T
Reference numeral 1 denotes a “main menu” initially displayed on the display, which is used for information selection. The creator first specifies necessary items from “map”, “service information” and “traffic information” with a mouse,
Specify "OK". In the T1 “main menu”, usually, the creator first specifies “map”. Here, the “map” corresponds to the “base map information” in FIG. When "CANCEL" is specified, the screen returns to the previous screen. When "map" is designated in "main menu" of T1 and then "OK" is designated, the screen shifts to the next screen, T2. Next, the creator selects an area on the screen of T2. Reference numeral 50 denotes a page break display, in which a page in the front-back direction can be selected. Here, for example, if "Kyushu" is designated and then "OK" is designated, the screen moves to T3 which is the "next screen". The worker can use this T
In the screen of No. 3, a selection is made as to whether or not to store.
When "store" and "OK" are designated, loading of the map information relating to "Kyushu" is started and stored in the DVD 10, and this storage is maintained thereafter. On the other hand, when "do not store" and "OK" are designated, loading of the map information relating to "Kyushu" is started and temporarily stored, but is automatically deleted after a predetermined time has elapsed. The creator can return to the “main menu” of T1 by designating “CANCEL” as necessary. T
When “Details” is designated on the screen 2, the screen shifts to a screen of T4 which is “Detailed menu of Kyushu”. When “Fukuoka Prefecture” and “Details” are specified on this T4 screen,
Move to the screen of T5 which is "Detailed menu of Fukuoka Prefecture". T
When “Hakata-ku, Fukuoka-shi” and “OK” are designated on the screen 5, the screen moves to T3 which is the “next screen”, and the map information on “Hakata-ku, Fukuoka-shi” is stored as described above. . Thus, first, the base map information is stored.

Next, when the creator specifies "traffic information" and "OK" in the "main menu" of T1, the screen normally moves to T5 via the screens of T2 and T4. Operated. On this T5 screen,
The creator selects the area for which he wants to know "traffic information" and selects "O
K ”. After this, the screen is the “next screen” T
Then, if necessary, a selection is made as to whether or not to store the information on the screen of T3. Since the "traffic information" is real-time information, the "traffic information" is usually specified by the navigation device 12 mounted on the vehicle. Next, returning to the "main menu" of T1, specifying "service information" and "OK", the screen shifts to the "service information setting detailed menu" of T6.
Here, if the creator wants to obtain some pieces of service information, he designates “macro setting” in order to simplify the operation. In this case, the screen moves to the next “macro setting menu” of T7. In this “macro setting menu” of T7, the creator can select “travel”, “business”
And "AUDODO" (other information is also displayed on the subsequent pages) and the like, and "OK" is specified. Here, “travel” includes “accommodation facilities” and “tourist information” shown in FIG. 7, and “business” includes “house information” shown in FIG. Is set in advance so as to include the "sports facility" shown in FIG. Next, the screen moves to, for example, T5 via T2 and T4, and a necessary area is selected. After this,
The screen moves to T3, and the selected area is stored in the navigation device body 14. In this manner, in the “macro setting menu”, the area of the service information of the specified specific group is selected in advance.

Next, the screen returns to the "service information setting detailed menu" of T6. Here, the creator designates “individual setting”, and the screen shifts to “service information selection menu” of T8. Here, if “macro setting” has already been selected in T6 and an area of service information of a specific group has been stored, the creator selects “restaurant” in the “service information selection menu” in T8. And "details" can be specified, but if no such service information area is stored,
Before designating "restaurants" and "details", it is necessary to store the area. For this reason, the creator must move the screen to T5 via T2 and T4 by specifying a specific service, for example, “restaurant” and “OK”, and store the necessary area. In this way,
First, an area of service information of a specific group or an area of specific service information is selected and stored in the navigation device body 14 in advance.

Thereafter, the operator designates, for example, "restaurant" and "details" in the "service information selection menu" of T8. In this case, the screen moves to “Detailed menu of restaurant” in T9. If, for example, “Japanese food” and “details” are designated in the “restaurant details menu” of T9, the screen shifts to the “Japanese details menu” of T10.
In this T10 "Detailed menu of Japanese food", "Udon ・
When "soba", "memory", and "OK" are designated, it is determined that the service information of the restaurant related to "udon / soba" in the selected area is the load target information. Thereafter, the screen returns to the previous screen, “Detailed Restaurant Menu” of T9. In the “Detailed Restaurant Menu” of T9, for example, “Western food”, “memory”, and “OK”
Is specified, it is determined that the service information of the restaurant related to “Western food” in the selected area is the load target information. When “all”, “memory”, and “OK” are designated at T9, it is determined that the information of all the genres of the restaurant is the load target information.

Thereafter, the process proceeds to T11 on the next screen. This T1
1 is for further selecting the load target information in association with service information related to “parking lot”. At T11, the creator selects “only a certain place”,
When "memory" and "OK" are designated, information that has already been determined to be the information to be loaded (here, service information of a restaurant related to "udon / soba" in T10 and "Western food" in T9) Out of service information), only a certain restaurant on parking is selected as load target information. Thereafter, the screen moves to the next screen T12. This T
The case of the screen 12 is the same as the case of the screen of T11,
For example, if the business hours “17:00 to 23:00”, “memory”, and “OK” are specified, “17:00 to 23: 00
Only the restaurants operating in "" are further selected as the information to be loaded.

Thereafter, the screen returns to the "service information selection menu" of T8. The creator repeats the same operation as in the case of the above-mentioned "restaurant" in other services "financial institution", "convenience store", "GS (gas station)" and the like as necessary, Load target information can be selected. After selecting the load target information in this way, the creator designates “start loading” on the “service information selection menu” of T8. By specifying this “load start”, the loading of the load target information selected before this is started. That is, the load target information (requested map information) transferred from the information center 2 is received by the mobile phone 26 or the like, and the information is stored in the DVD 10. Also, T9, T
“Load start” is also provided on the screens of 10, T11 and T12. When “load start” is designated on these screens, loading of the load start information selected before this is started.

Further, T8, T9, T10, T11, T
In each of the screens 12, when “store” and “OK” are designated, the information selected on this screen is stored, and the storage is maintained thereafter. on the other hand,
If "OK" is selected without specifying "Remember",
The information selected on the screen is temporarily stored, but is automatically deleted after a predetermined time has elapsed. In this way, the user can appropriately select the necessary information,
Then, the production of the original DVD 10 is completed. Next, an embodiment of the present invention will be described more specifically with reference to FIGS. As shown in FIG. 10, the DVD 10 has 1 / 50,000 base map data 60, 1/30
2,000 base map data 62,64, 1/15000
, Base service data 68 of 1/15000, original map data 70 of 1/15000, original service data 72 of 1/15000, etc. are stored.

Here, 1/15000 base map data 66 and 1/15000 base service data 68
Are superimposed and displayed, and data including both of them is the base map. Similarly, 1
/ 15000 original map data 70 and 1/150
The original service data 72 of 00 is also displayed in a superimposed manner, and data including both of them is the original map. Thus, the scale is 1/150
If it is larger than 00 (ie, smaller than 1/5000), only the base map data is stored. On the other hand, when the scale is 1/15000 or less (that is, 1/15000 or more), two types of map information of the base map and the original map are stored in the same area.

Here, these two types of base maps and original maps are set for each area. Therefore, both in the same area can be replaced, and only one of the maps can be displayed with priority on the original map or by the user's selection. FIG.
FIG. 1 shows a storage area of the DVD 10. As shown in FIG. 11, area 80 stores base map data of area 0 (for example, base map data 60, 62, 64 of 1/30000), and area 82, which is a first storage area, stores A base map is stored, and an original map is stored in an area 84 that is a second storage area. Here, the area 82 is divided into areas by area. For example, “base map data and base service data of area 1”, “base map data and base service data of area 2” and the like are set in area units. Is remembered. Similarly, the area 84 is also divided into areas in units of areas, such as “original map data and original service data of area 1”, “original map data and original service data of area 2”, and the like. It is stored for each area.

Here, the area 80 for storing the base map data of the area 0 and the area 82 for storing the base map are
It is rewritable when data is updated, but cannot be erased otherwise. This is to prevent erasure due to erroneous operation. This data update is performed by obtaining the latest data from the DVD storing the existing base map data or the database of the information center 2 (see FIG. 8). On the other hand, the area 84 where the original map is stored
Is an area that can be freely created and rewritten by the user. More specifically, 1/1500 shown in FIG.
The original map data 70 of 0 is used by the user to add a new road based on the base map data or to create a road in a specific area more accurately, thereby increasing the resolution of the map data according to the user's purpose. It is dense. Also, 1/15000 original service data 72 includes various service information described above (FIG. 8).
(See Reference), the user selects and creates service information that he deems necessary.

FIG. 12 is a flowchart showing a routine for preferentially displaying the original map when both the base map and the original map are set in the same area. In FIG. 12, first, in step S31, in the area designated by the user,
It is determined whether or not the scale of the map is a predetermined scale, for example, 1/15000 or less (magnification is 1/15000 or more).
In the case of s, the process proceeds to step S32. The original map is created and stored arbitrarily by the user as needed, and there are areas where the original map is stored and areas where the original map is not stored. Therefore, in step S32, it is determined whether or not there is an original drawing in this area.

If it is determined in step S32 that there is an original map, the process proceeds to step S33,
The original map of the area, that is, the original map data and the service data for the original, are read from the area 84 which is the second storage area of the DVD 10. On the other hand, if it is determined in step S32 that there is no original map, the process proceeds to step S34, where the base map of the corresponding area, that is, the base map data and the service data for base are read from the area 82 which is the first storage area of the DVD 10. . Further, in the case of No in step S31, the process proceeds to step S35, where the base map of the corresponding area, that is, the base map data and the base service data are stored in the DV.
The data is read from the area 80 of D10.

In the embodiment of the present invention, as described above, the original map has, for example, a scale of 1/1500.
In the case of 0, the original map data 70 and the original service data 72 are superimposed and displayed. However, the original map is not limited to this, and the base map data 66 and the original service data 72 may be superimposed. Thus, according to the embodiment of the present invention shown in FIGS.
Since the area for storing the base map and the area for storing the original map are separately set, and the area for storing the base map cannot be erased, the erasure of the storage of the base map due to an erroneous operation can be prevented. Further, since the base map and the original map are stored in the same area unit, in the area where both the base map and the original map are stored, the original map can be preferentially displayed. It is also possible to display only one of them according to the selection of the user.

As described above, in the embodiment of the present invention,
Since the original map data and the original service data that the user deems necessary are created for each area, an original map can be set each time according to the purpose. This original map can be used thereafter by storing it, and can be deleted when it is no longer needed. Therefore, the limitation on the storage capacity does not matter. Furthermore, according to the embodiment of the present invention, the original map created in this way and the existing base map can be used together, so that an original map of all areas is not created. . Therefore, the convenience of the navigation device is improved.

[0036]

As described above, according to the present invention,
The user can select and obtain only necessary information from an external information center to create an original map, and it is not necessary to convert all map information into an original, thereby improving convenience.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing an overall system related to creating an original map according to the present invention.

FIG. 2 is a block diagram showing the entire system of a navigation device mounted on a vehicle.

FIG. 3 is a plan view of the vehicle, specifically showing a navigation device mounted on the vehicle.

FIG. 4 is a diagram for explaining a method of selecting necessary information using a vehicle-mounted navigation device.

FIG. 5 is a flowchart showing a method for creating an original DVD.

FIG. 6 is a diagram showing a display screen displaying the remaining capacity of the DVD.

FIG. 7 is a diagram showing a database managed by an information center.

FIG. 8 is a diagram showing specific contents of various types of information included in the “restaurant” database in FIG. 7;

FIG. 9 is a view showing display contents and an operation method on a display when an original DVD is created by selecting various information as needed.

FIG. 10 is a diagram showing base map data, a base map, and an original map stored in a DVD.

FIG. 11 shows a storage area of a DVD.

FIG. 12 is a flowchart showing a routine for displaying an original map with priority when both a base map and an original map are set in the same area;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Personal computer 2 Information center 6 Vehicle 10 Storage medium (DVD) 12 Navigation device 14 Navigation device main body 15 Communication device for optical beacon 16 Central control unit 18 Multi-display 20 Head-up display 22 Voice interaction switch 24 Operation switch 26 Mobile phone 82 Area ( (First storage area) 84 areas (second storage area)

Claims (14)

[Claims] 1. A navigation device capable of storing an original map created by a user as needed in a writable storage medium, comprising: a first recording area for storing an existing base map in the storage medium; And a second recording area for storing the original map. 2. The navigation device according to claim 1, wherein the first storage area is not erasable. 3. The navigation device according to claim 1, wherein the original map is set in the same area unit as the base map. 4. The navigation device according to claim 3, wherein when both the original map and the base map are set in the same area, the original map is displayed preferentially. 5. The navigation device according to claim 3, wherein when both the original map and the base map are set in the same area, one of them is displayed according to a user's selection. 6. The navigation device according to claim 1, wherein the original map includes original map data, and the original map data is set at a low scale to be a detailed map. 7. The navigation device according to claim 1, wherein the original map is set by superimposing original map data and original service data. 8. The navigation device according to claim 1, wherein the base map includes base map data, and the original map is set by superimposing the base map data and original service data. 9. A writable storage medium on which a user can store a program for creating an original map as needed by a navigation device, wherein the storage medium stores an existing base map. A storage medium wherein one recording area and a second recording area for storing the original map are set. 10. The storage medium according to claim 9, wherein said first storage area is not erasable. 11. The storage medium according to claim 9, wherein the original map is set in the same area unit as the base map. 12. The storage medium according to claim 9, wherein the program preferentially displays the original map when both the original map and the base map are set in the same area. 13. The storage medium according to claim 9, wherein, when both the original map and the base map are set in the same area, one of the programs is displayed by a user's selection. 14. The storage medium according to claim 9, wherein the original map includes original map data, and the original map data is set at a low scale to be a detailed map.