JP3119799B2 - Map drawing method and in-vehicle navigation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a map drawing method for displaying electronic map information and an in-vehicle navigation device for displaying a map near a current position, a destination, and a travel route of a vehicle.

[0002]

2. Description of the Related Art Conventionally, there is an in-vehicle navigation device as a device for guiding a passenger to a predetermined destination. this is,
Using the current position information of the vehicle obtained by the current position detection means such as a GPS receiver, map information stored in a storage medium such as a CD-ROM is read, and a map near the current position is displayed by a display means such as a liquid crystal monitor. Display,
A device that calculates a travel route from a predetermined departure point to a predetermined destination by route search means, and provides voice or screen display guidance when a driver is approaching an intersection based on vehicle position information and the travel route. It is.

[0003] In addition to displaying map information two-dimensionally on a screen as a map display near the current position, a three-dimensional display of the road ahead seen from the driver allows the displayed map to be displayed. There have been proposed devices that can easily cope with actual roads during travel.

[0004] Such an in-vehicle navigation device is described, for example, in Japanese Patent Application Laid-Open No. 3-26917. FIG. 16 shows a configuration of a conventional on-vehicle navigation device that three-dimensionally displays a road ahead viewed from a driver. In FIG. 16, reference numeral 1601 denotes a distance sensor;
602 is an azimuth sensor, 1603 is a signal processing device, 160
4 is a traveling locus storage device, 1605 is a storage medium, 1606
Denotes a storage medium reproducing device, 1607 denotes a display device, and 1608 denotes an operation device.

Next, the operation of the above conventional example will be described.
In FIG. 16, a signal processing device 1603 is configured by a microcomputer, and calculates the current position of the vehicle from the vehicle speed pulse signal and the angular speed signal sent from the distance sensor 1601 and the direction sensor 1602. In the signal processing device 1603, based on the calculated current position information,
A request is made to the storage medium reproducing means 1606 for map information near the current position. The storage medium reproducing unit 1606 is a storage medium
The necessary map information is read from the data processing unit 05 and sent to the signal processing device. The signal processing device 1603 displays the sent map information on the display device 1607 together with the current position information.

The signal processing device 1603 calculates a travel route from a predetermined departure point to a predetermined destination in response to a user request input from the operation device 1608.
Further, the current position information calculated by the signal processing device 1603 is sequentially stored in the traveling locus storage device 1604 as a traveling locus.

In this conventional example, a map near the current position displayed on the display device 1607 is displayed two-dimensionally as shown in FIG. 17 and three-dimensionally displayed as shown in FIG. There is. In particular, in the display as shown in FIG. 18, depending on whether the display state of the screen is similar to the actual road traveling state of the moving body, the user on the moving body displays the current position on the road map displayed on the screen. There is an advantage that it is easy to correspond to the current position on the road.

[0008]

However, in the on-vehicle navigation device shown in the above-mentioned conventional example, since the scale of the display screen changes continuously by performing three-dimensional display, the distance near the current position is changed. It may be difficult for the driver to feel the feeling, and the driver may lose track of the target intersection or facility.

Further, in the on-vehicle navigation device shown in the above-mentioned conventional example, it is possible to display farther in the traveling direction by three-dimensional display than in two-dimensional display, but on the other hand, on the road near the current position. There may be a problem that it is difficult to recognize the shape intuitively.

The present invention solves such a conventional problem, and makes it easy to grasp the sense of distance near the current position and to recognize the road shape near the current position, and at the same time, to display a far distance in the traveling direction. It is an object of the present invention to provide an excellent map drawing method and an in-vehicle navigation device capable of performing such operations.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention divides a display screen into a plurality of regions and performs coordinate conversion using a different conversion method and conversion coefficient for each region.
In a specific area of the display screen, the change in scale within the display screen is reduced, and another area of the display screen can be used to display a wide-area map. , And the map can be continuously connected and displayed.

Further, in order to achieve the above object, the present invention divides a display screen into an area for displaying the vicinity of the current position and an area for displaying a distant direction in the traveling direction, and a different conversion method for each area. Coordinate conversion is performed using a conversion coefficient, so that a change in scale in the display screen near the current position is reduced, and the display can be displayed far away in the traveling direction.

Further, in order to achieve the above object, the present invention divides a display screen into an area for displaying the vicinity of the current position and an area for displaying the vicinity of the destination, and uses a different conversion method for each area. Coordinate conversion is performed using a conversion coefficient, so that a change in scale in the display screen near the current position is reduced, and it is possible to display up to the vicinity of the destination.

According to the present invention, in order to achieve the above object, the display screen is divided into an area for displaying the vicinity of the current position, an area for displaying the vicinity of the destination, and an area for displaying a route to the destination. Then, perform coordinate conversion using different conversion methods and conversion coefficients for each area, reduce changes in scale in the display screen near the current position, and display the route to the destination and the vicinity of the destination. Is made possible.

According to the present invention, with the above-described configuration, in a specific display area, a map display with a small change in scale can provide a sense of distance,
The road shape can be easily grasped, and a wide-range map display can be realized at the same time.

Further, according to the present invention, with the above configuration, a map display with a small change in scale near the current position facilitates grasping of a sense of distance and a road shape, and simultaneously displays a map far away in the traveling direction. Can be realized.

Further, according to the present invention, with the above-described configuration, a map display with a small change in scale near the current position facilitates grasping of a sense of distance and a road shape, and simultaneously realizes a map display to the vicinity of a destination. can do.

Further, according to the present invention, with the above-described configuration, a map display with a small scale change near the current position makes it easy to grasp the sense of distance and the shape of the road, as well as the route to the destination and the vicinity of the destination. Can be displayed simultaneously.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention , two or more map drawing areas are vertically arranged on a display screen.
Area, and placed on one divided screen on the display screen
In the drawing area, the coordinates of the map information stored in the storage medium are changed.
Draws a two-dimensional map by switching, and other screens on the display screen
In the drawing area arranged in the storage medium.
Draw a three-dimensional map by coordinate conversion of figure information
In the two-dimensional map displayed on the display screen,
This is a map drawing method that displays the position.
In a specific display area on the surface, two-dimensional with little change in scale
Map display makes it easy to grasp the sense of distance and road shape.
In addition, in other display areas, a three-dimensional map display
Can grasp a wide area while recognizing terrain changes
Display method such as realizing map display at the same time
You can draw a map by changing it .

[0020] The invention as defined in claim 2 of the present invention is characterized in that
The map is controlled and displayed so that it touches continuously between the specified areas
This is a map drawing method designed to
In the world, the transformation process is performed so that the coordinate transformation result is the same.
Setting, the two areas on the display screen are continuously
Connected and displayed, spoiling map connection
Without this, it is possible to draw maps of different scales .

According to a third aspect of the present invention, a display image is provided.
In the drawing area located on the lower side of the screen,
Draws the first map by coordinate transformation of the map information
In the drawing area arranged on the upper side of the display screen, the storage medium
Draws a second map by coordinate transformation of map information stored in
Drawing the second map with respect to the first map,
Make a three-dimensional wide-area map display obtained by conversion
This is a map drawing method that changes the scale around the current position.
A map display with less complexity helps to grasp the sense of distance and road shape
It is easy to use and the map display to the far side of the traveling direction is the same.
Can sometimes be realized .

According to a fourth aspect of the present invention, a map medium is provided.
Coordinate transformation of map data of the same scale inside the body
This is a map drawing method in which different maps are drawn in the upper and lower drawing areas, and the map information stored in the storage medium can be easily managed.

According to a fifth aspect of the present invention, there is provided an information storage medium for storing map information, a current position detecting means for calculating current position information of a vehicle, and a current position information from the current position detecting means. A storage medium reproducing means for reading map information from the information storage medium, a display means for displaying the map information together with the current position information, and a display means for performing a drawing process by the map drawing method according to any one of claims 1 to 4. It is an in-vehicle navigation device having a navigation control unit for displaying, and on the boundary of the adjacent area, the conversion process is set so that the coordinate conversion result is the same,
Since the two areas are connected and displayed on the display screen continuously, it is possible to draw maps of different scales without impairing the connection relation of the maps.

According to a sixth aspect of the present invention, there is provided an operation means for inputting a user's request, wherein the navigation control means sets destination information based on the user's request from the operation means, An in-vehicle navigation device configured to read map information from an information storage medium by a storage medium reproducing unit based on current position information and destination information. A map display with a small scale change near the current position provides a sense of distance and road. The shape can be easily grasped, and the map display up to the vicinity of the destination can be simultaneously realized.

[0025]

According to a seventh aspect of the present invention, the navigation control means draws map information in the vicinity indicated by the current position information in a drawing area arranged on the lower side of the display screen.
An in-vehicle navigation device that draws map information near the destination information in a drawing area arranged on the upper side of the display screen. A map display with a small scale change near the current position provides a sense of distance and road. The shape can be easily grasped, and the display of a map far away in the traveling direction can be realized at the same time.

According to an eighth aspect of the present invention, the navigation control means draws map information near the current position information in a drawing area arranged on the upper side of the display screen.
An in-vehicle navigation device that draws map information near the destination information in a drawing area located on the lower side of the display screen, and also supports devices that view the screen as a reflection image, such as a head-up display can do.

Embodiment 1 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIGS. 1, 2 and 3 are flowcharts showing a first embodiment of the map drawing method according to the present invention. In order to explain the first embodiment, a case where two areas of the map shown in FIG. 4 are coordinate-transformed to two display areas shown in FIG. 5 and displayed will be described as an example.

As shown in FIG. 1, in the first embodiment, first, a coordinate conversion formula for the area 1 is calculated from the coordinates of the area 1 shown in FIG. 4 and the coordinates of the area 1 shown in FIG. Step 11). Since the coordinate transformation for the area 1 can be calculated as a parallel translation of the coordinates, the coordinates in FIG. 4 before the coordinate transformation are represented by (x, y), and the coordinates in FIG. 5 after the coordinate transformation are represented by (u, v). When expressed, the coordinate conversion equation can be expressed as in equation (1) and equation (2). u = x-50 (1) v = y (2)

Next, the coordinate conversion formula for the area 2 is shown in FIG.
Is calculated from the coordinates of the area 2 shown in FIG. 5 and the coordinates of the area 2 shown in FIG. 5 (step 12). The coordinate transformation for the area 2 can be performed by continuously executing the three-dimensional affine transformation and the perspective transformation of the coordinates, and can be calculated by the transformation.
And (Equation 2).

[0031]

(Equation 1)

[0032]

(Equation 2)

After the coordinate conversion formula is calculated, map data to be drawn is obtained (step 13). The map data here includes the types of straight lines indicating roads, the coordinates of the start point, the end point, and the interpolation points, and the character strings and coordinates of character data such as place names.

Next, it is determined which area of FIG. 4 the acquired map data belongs to (steps 14A, 14A).
B). In the first embodiment, by two condition judgments,
It is classified into three types of data. The first is data included in area 1, the second is data included in area 2, and the third is data included in both area 1 and area 2. Note that data that is not included in either the region 1 or the region 2 is not a drawing target.

Here, the data included in the area 1 is drawn for the area 1 (step 20). This process
As shown in FIG. 2, a conversion formula for area 1 is set (step 21), coordinate conversion is performed according to this conversion formula (step 22), and roads and characters are drawn based on the converted coordinates (step 21). Step 23). The data included in the area 2 is drawn for the area 2 (step 30). In this process, as shown in FIG. 3, a conversion formula for area 2 is set (step 31), coordinate conversion is performed according to the conversion formula (step 32), and roads and characters are converted based on the converted coordinates. Is drawn (step 33).

For data included in both the area 1 and the area 2, first, data on the boundary between the area 1 and the area 2 is calculated (step 15). That is, for example, the starting point is the area 1
, And the intersection of the straight line with the boundary between the area 1 and the area 2 is calculated for a straight road having an end point in the area 2. Then, one data is separated into data included in the area 1 and data included in the area 2 (Step 16).
The data included in the area 1 performs the above-described drawing processing of the area 1 (step 17), and the data included in the area 2 performs the above-described drawing processing of the area 2 (step 18).

Such a drawing process is performed for all the map data to be drawn (step 19), and the process ends.

As described above, in the first embodiment,
The drawing area of the map is divided into two areas, and different coordinate conversion processing is performed on each area to draw the map. On the boundary between adjacent areas, the conversion processing is set so that the coordinate conversion result is the same. Therefore, the two areas are continuously connected and displayed on the display screen, so that maps having different scales can be drawn without impairing the connection relation of the maps.

In the first embodiment, the region 1
In, map data is not scaled or deformed, and only translation is performed, so users can grasp the sense of distance,
It does not impair the grasp of the road shape. Further, in the area 2, since a wide-area map is drawn on the display screen with a scale smaller than the scale of the area 1, the user can know the road information to a distant place.

In the first embodiment, the map drawing area is divided into at least two areas vertically on the display screen, and the map drawing area is drawn in the drawing area arranged on the upper side of the display screen. The coordinate transformation is controlled so that the scale of the map is smaller than the scale of the map drawn in the drawing area located on the lower side of the display screen.
The map is divided into at least two areas vertically on the display screen, and the scale of the map drawn in the lower drawing area on the display screen is drawn in the upper drawing area on the display screen. If the coordinate conversion is controlled so as to be smaller than the scale of the map to be displayed, the present invention can be applied to an in-vehicle navigation device such as a head-up display that reflects a display screen on a windshield or reflects a mirror. be able to.

Further, by drawing map components of the same scale in the divided areas as map components in the map information stored in the storage medium, management of the map information in the storage medium becomes easy. . That is, in the ordinary map information, map data of a plurality of scales from a wide area map to a detailed map are stored in the CD-ROM, and it is possible to select a map to be drawn on the screen according to the scale. This complicates the management of the map data, so that the use of the same scale map data in the storage medium for drawing facilitates the data management. Of course, at the time of drawing, the scale is converted by the above-described method and drawn.

(Embodiment 2) Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 6 is a block diagram showing the configuration of the vehicle-mounted navigation device according to the present invention. In FIG. 6, 1 is a current position detecting means,
2 is a navigation control means, 3 is an information storage medium, 4 is a storage medium reproducing means, and 5 is a display means.

Next, the operation of the in-vehicle navigation constructed as described above will be described. In FIG. 6, a current position detecting means 1 is composed of a GPS antenna and a GPS reception processing device, and calculates current position information such as a current position, a moving azimuth, and a moving speed of a vehicle from a GPS signal. To the navigation control means 2.
In the navigation control means 2, based on the current position information sent from the current position detection means 1, the storage medium reproducing means 4
Requests map information around the current location. The storage medium reproducing means 4 reads necessary map information from the information storage medium 3 and sends it to the navigation control means 2. The navigation control means 2 displays the sent map information on the display means 5 together with the current position information.

In FIG. 6, the navigation control means 2
Any of the map drawing methods described in the first embodiment is used for the map information drawing processing in. As an example, FIG.
As shown in (1), the area of the map to be drawn is set such that the current position of the vehicle indicated by the current position information calculated by the current position detecting means 1 is inside the area 1. In addition, the map area to be drawn is set such that the moving azimuth (traveling direction) indicated by the current position information calculated by the current position detecting means 1 is located above the map. After the map area is set as described above, the same coordinate conversion processing as in the first embodiment is performed and the drawing processing is performed, so that the map information as shown in FIG. 8 before the coordinate conversion is shown in FIG. Thus, the road near the current position can be displayed without any change in the shape, and a map up to a distant location in the traveling direction can be displayed continuously.

As described above, in the second embodiment,
The map display with little change in scale near the current position,
In addition to making it easy to grasp the sense of distance and the shape of the road, it is possible to simultaneously display a map far away in the traveling direction.

(Embodiment 3) Next, a third embodiment of the present invention will be described with reference to FIG. FIG.
0 is a block diagram showing the configuration of the in-vehicle navigation device according to the present invention. In FIG. 10, 1 is a current position detecting means, 2 is a navigation control means, 3 is an information storage medium, 4 is a storage medium reproducing means, 5 is a display means, and 6 is an operation means.

Next, the operation of the on-vehicle navigation device configured as described above will be described. In FIG. 10, the current position detecting means 1, the navigation control means 2,
The operations of the information storage medium 3, the storage medium reproducing means 4, and the display means 5 are the same as those of the second embodiment, and thus the description is omitted. In the third embodiment, the user can input a destination to be traveled by using the operation means 6. Then, the input destination information is sent to the navigation control means 2.

In the third embodiment, any one of the map drawing methods described in the first embodiment is used for the map information drawing process in the navigation control means 2. As an example, as shown in FIG. 11, the area of the map to be drawn is set such that the current position of the vehicle indicated by the current position information calculated by the current position detecting means 1 is inside the area 1. Also,
The map area to be drawn is set so that the vicinity of the destination input by the operation means 6 is inside the area 2. After the map area is set as described above, the same coordinate conversion processing as in the first embodiment is performed, and the drawing processing is performed.
As shown in (1), a road near the current position can be displayed without any change in shape, and a map to a destination can be continuously displayed.

As described above, in the third embodiment,
The map display with little change in scale near the current position,
This makes it easy to grasp the sense of distance and the shape of the road, and simultaneously displays a map to the destination.

(Embodiment 4) Next, a fourth embodiment of the present invention will be described with reference to FIG. FIG.
FIG. 3 is a block diagram showing the configuration of the vehicle-mounted navigation device according to the present invention. In FIG. 13, 1 is a current position detection means, 2 is a navigation control means, 3 is an information storage medium, 4 is a storage medium reproduction means, 5 is a display means, 6 is an operation means, and 7 is a route search means.

Next, the operation of the on-vehicle navigation device configured as described above will be described. In FIG. 13, the current position detecting means 1, the navigation control means 2,
The operations of the information storage medium 3, the storage medium reproducing means 4, the display means 5, and the operation means 6 are the same as those in the third embodiment, and thus the description is omitted. In the fourth embodiment, 6
Thus, the route search means 7 calculates a traveling route from the current position to the destination based on the input destination information.

In the fourth embodiment, any one of the map drawing methods described in the first embodiment is used for the map information drawing processing by the navigation control means 2. As an example, as shown in FIG. 14, the map area to be drawn is set such that the current position of the vehicle indicated by the current position information calculated by the current position detection means 1 is inside the area 1. Also,
The map area to be drawn is set so that the part of the travel route calculated by the route search means 7 that is not included in the area 1 and the map near the destination are inside the area 2. After the map area is set as described above, the same coordinate conversion processing as that of the first embodiment is performed, and the drawing processing is performed. As a result, as shown in FIG. And a map near the travel route to the destination can be displayed continuously.

As described above, in the fourth embodiment,
The map display with little change in scale near the current position,
The feeling of distance and the shape of the road can be easily grasped, and the map display of the traveling route to the destination can be simultaneously realized.

In the first, second, third, and fourth embodiments, the display area is divided into two areas. Accordingly, the area may be divided into three or more areas.

In the second, third, and fourth embodiments, the work conversion near the current position is performed in parallel, but the change in road shape is suppressed. , An affine transformation, a perspective transformation, or the like may be used.

In the first, second, third, and fourth embodiments, all the map information in each area is drawn. Map information may be thinned out and displayed according to the area reduction ratio.

Further, in the fourth embodiment, the map near the current position is drawn in the area 1, but the map near the current position and the map near the intersection to be turned next are combined in the area 1. You may draw.

[0058]

As is clear from the above embodiment, the present invention makes it easy to grasp the sense of distance and the shape of a road in a specific display area with a small change in scale, and to provide a wide range of maps. Display can be realized simultaneously.

Further, as apparent from the above embodiment, the present invention makes it easy to grasp the sense of distance and the shape of the road near the current position, and simultaneously realizes the map display to a distant place in the traveling direction. Can be.

Further, as apparent from the above embodiment, the present invention makes it easy to grasp the sense of distance and the shape of the road near the current position, and simultaneously realizes the map display to the vicinity of the destination. it can.

As is clear from the above embodiment, the present invention makes it easy to grasp the sense of distance and the shape of the road near the current position, and displays a route to the destination and a map display near the destination. Can be realized simultaneously.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a processing flow of a map drawing method according to a first embodiment of the present invention;

FIG. 2 is a flowchart showing a flow of a drawing process in a region 1 of the map drawing method according to the first embodiment of the present invention;

FIG. 3 is a flowchart showing a flow of a drawing process in an area 2 of the map drawing method according to the first embodiment of the present invention;

FIG. 4 is a conceptual diagram for explaining map area division in a map drawing method according to the first embodiment of the present invention;

FIG. 5 is a conceptual diagram illustrating area division of a display screen in a map drawing method according to the first embodiment of the present invention.

FIG. 6 is a schematic block diagram showing a configuration of an on-vehicle navigation device according to a second embodiment of the present invention.

FIG. 7 is a conceptual diagram illustrating a region division of a map in a vehicle-mounted navigation device according to a second embodiment of the present invention.

FIG. 8 is a conceptual diagram illustrating an example of a map screen in an in-vehicle navigation device according to a second embodiment of the present invention.

FIG. 9 is a conceptual diagram illustrating an example of a display screen in an in-vehicle navigation device according to a second embodiment of the present invention.

FIG. 10 is a schematic block diagram showing a configuration of an in-vehicle navigation device according to a third embodiment of the present invention.

FIG. 11 is a conceptual diagram illustrating a map area division in a vehicle-mounted navigation device according to a third embodiment of the present invention.

FIG. 12 is a conceptual diagram illustrating an example of a display screen in a vehicle-mounted navigation device according to a third embodiment of the present invention.

FIG. 13 is a schematic block diagram showing a configuration of an in-vehicle navigation device according to a fourth embodiment of the present invention.

FIG. 14 is a conceptual diagram illustrating area division of a map in a vehicle-mounted navigation device according to a fourth embodiment of the present invention.

FIG. 15 is a conceptual diagram illustrating an example of a display screen in an in-vehicle navigation device according to a fourth embodiment of the present invention.

FIG. 16 is a schematic block diagram showing a configuration of a conventional on-vehicle navigation device.

FIG. 17 is a conceptual diagram illustrating an example of a display screen in a conventional in-vehicle navigation device.

FIG. 18 is a conceptual diagram illustrating an example of a display screen in a conventional in-vehicle navigation device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 current position detecting means 2 navigation control means 3 information recording medium 4 recording medium reproducing means 5 display means 6 operating means 7 route searching means 1601 distance sensor 1602 azimuth sensor 1603 signal processing device 1604 travel locus storage device 1605 information storage medium 1606 storage medium Playback device 1607 Display device 1608 Operation device

Claims (8)

(57) [Claims] 1. A map drawing area is vertically arranged on a display screen by two.
One screen divided on the display screen divided into two or more areas
Map information stored in the storage medium in the drawing area
Draws a two-dimensional map by coordinate transformation of information and displays it on the display screen
In the drawing area arranged on another screen of the storage medium.
Draws a three-dimensional map by coordinate transformation of memorized map information
Along with the two-dimensional map displayed on the display screen
A map drawing method characterized by displaying a current position of a vehicle . 2. The map is in continuous contact between the divided areas.
2. The map drawing method according to claim 1, wherein the map is displayed in such a manner as to be controlled . 3. A drawing area arranged on a lower side of a display screen.
The map information stored in the storage medium by the coordinate transformation.
Draw the map of No. 1 and draw it at the top of the display screen
Coordinate transformation of map information stored in the storage medium into an area
Draws a second map according to
The second map is a three-dimensional wide area obtained by coordinate transformation.
2. The map drawing method according to claim 1 , wherein the map is displayed . 4. Map data of the same scale in a map medium is stored.
After converting the markers, different grounds are drawn in the upper and lower drawing areas of the display screen.
4. The map drawing method according to claim 3, wherein the map is drawn and displayed . 5. An information storage medium for storing map information, current position detection means for calculating current position information of a vehicle, and reading map information from said information storage medium based on current position information from said current position detection means. Storage medium reproducing means;
An in-vehicle navigation device comprising: display means for displaying map information together with current position information; and navigation control means for performing a drawing process by the map drawing method according to any one of claims 1 to 4 and displaying the result on the display means. 6. An operation means for inputting a request from a user, wherein the navigation control means sets destination information based on the user's request from the operation means, and based on the current position information and the destination information. 6. The in-vehicle navigation device according to claim 5, wherein the map information is read from the information storage medium by the storage medium reproducing means. 7. The navigation control means draws map information near the current position information in a drawing area arranged on the lower side of the display screen, and draws map information near the destination information on the display screen. vehicle navigation system according to claim 5 or 6, wherein by drawing the drawing region located on the upper side of the. 8. The navigation control means draws map information near the current position information in a drawing area arranged on the upper side of the display screen, and draws map information near the destination information on the lower display screen. vehicle navigation system according to claim 5 or 6, wherein by drawing the drawing region located on the side.