JP2004177317A - Navigation system, demonstration method, and program for demonstration - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system capable of performing route calculation in which a road that a user frequently travels is reflected on a learned result. <P>SOLUTION: The navigation system 100 for performing simulation of a vehicle to travel along a searched route has a controlling part 20 for controlling to change scale of a map displayed on a display 3 according to a distance in a route from a first crossing where the vehicle turns next time to a second crossing where the vehicle turns next to the first crossing. In addition, the controlling part 20 fixes the map displayed on the display 3 and makes the vehicle run on the fixed map in the case that the distance in the above zone exceeds a predetermined distance. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a navigation device, a demonstration method, and a demonstration program, and more particularly, to a technique for simulating a vehicle traveling along a searched route.
[0002]
[Prior art]
2. Description of the Related Art In a navigation device that guides a vehicle and enables a driver to easily reach a desired destination, a vehicle position is detected, map data around the vehicle position is read from a CD-ROM, and a map image is read. The vehicle position mark (own vehicle position mark) is drawn on a predetermined location on the map image while being drawn on the display screen. Then, as the current position changes due to the movement of the vehicle, the own vehicle position mark on the screen is moved so that the map information around the vehicle position can always be understood at a glance.
[0003]
In such a navigation device, a navigation device having a demonstration function has been proposed. This demonstration function reads the map of the area where the demonstration is performed from a disk (CD-ROM, etc.) and displays it on the display screen. An image such as a law is superimposed on a map and displayed.
[0004]
As such a technique, a technique described in Patent Document 1 has been proposed. According to Patent Document 1, when map data for a demonstration is read from a disk medium, the map data is stored in a memory and a demonstration is performed. Is read out. Thus, a demonstration can be performed while drawing a map of an arbitrary area.
[0005]
[Patent Document 1]
JP 07-69676 A
[Problems to be solved by the invention]
However, when performing a demonstration using the conventional demonstration function, since the map is displayed on the display in the same manner as the normal navigation function, the user can be sure of what the route is. There is a problem that you cannot know.
[0006]
In addition, when performing a demonstration run using the conventional demonstration function disclosed in Patent Document 1, it is necessary to make it appear that the vehicle is actually running. There is a problem that it will take.
[0007]
Accordingly, it is an object of the present invention to solve the above-mentioned problems of the prior art, and to provide a navigation device, a demonstration method, and a demonstration program that can grasp a route in advance.
[0008]
It is another object of the present invention to provide a navigation device, a demonstration method, and a demonstration program that can grasp a route in advance and perform a demonstration run in a short time.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a navigation device according to claim 1 is a navigation device having a function of causing a vehicle to run in a pseudo manner along a searched route, wherein the vehicle turns next on the route. A control for calculating a distance in a section from the first intersection to a second intersection turning next to the first intersection, and controlling to change a scale of a map displayed on a display screen according to the calculated distance. It has a part.
[0010]
According to the navigation device of the first aspect, the distance from the first intersection where the vehicle turns next on the route to the second intersection next to the first intersection is calculated, and according to the calculated distance, Since the scale of the map displayed on the display screen is changed, the way the map is displayed can be changed according to the distance to the intersection where the vehicle turns next. Thus, the user can surely know in advance what the route is like.
[0011]
In the navigation device according to the second aspect, in the navigation device according to the first aspect, the control unit changes the scale of the map to a scale at which the first intersection and the second intersection fit on the display screen. It is characterized by doing. According to the navigation device of the second aspect, since the scale of the map is changed so that the first intersection and the second intersection fit on the display screen, the user is notified of the reaching degree to the next intersection. be able to. Thus, the user can surely know in advance what the route is like.
[0012]
In the navigation device according to a third aspect, in the navigation device according to the first or second aspect, the control unit fixes a map displayed on the display screen when a distance in the section exceeds a predetermined distance. Then, the vehicle is driven on a fixed map. According to the third aspect of the present invention, when the calculated distance in the section exceeds a predetermined distance, the vehicle is caused to travel on the fixed map, so that the vehicle travels to the next intersection (guide point). Can be notified to the user. Thus, the user can surely know in advance what the route is like. In addition, it is possible not to give unnecessary information to the user.
[0013]
According to a fourth aspect of the present invention, in the navigation device according to the third aspect, when the distance in the section exceeds a predetermined distance, the control unit displays a two-dimensionally displayed map on the display screen. Is displayed. According to the navigation device of the fourth aspect, the control unit displays the two-dimensional map on the display screen. Therefore, even if the speed at which the vehicle travels in this section is increased, the user can display the display screen without discomfort. Can be referenced. In addition, the user can be notified of the degree of reaching the next intersection. Thus, the user can surely know in advance what the route is like.
[0014]
The navigation device according to a fifth aspect is the navigation device according to any one of the first to fourth aspects, wherein the control unit is configured to control the vehicle traveling along the route according to a distance in the section. It is characterized by changing the speed. According to the navigation device of the fifth aspect, if the calculated distance is a predetermined distance, for example, a long distance, the control unit increases the speed of the vehicle that travels along the route, thereby increasing the speed of the next intersection. Can be shortened. Thereby, the simulation time to the destination can be reduced.
[0015]
According to a sixth aspect of the present invention, in the navigation apparatus according to any one of the first to fifth aspects, the control unit determines the vehicle based on the vehicle before the vehicle passes the second intersection. The three-dimensionally displayed map is displayed on the display screen. According to the navigation device of the sixth aspect, before the vehicle passes through the second intersection, a three-dimensional map based on the vehicle is displayed on the display screen. Guidance can be accurately provided to the user in the vicinity.
[0016]
Also, in the demonstration method according to the present invention, in the demonstration method in which a vehicle travels in a simulated manner along a searched route, the vehicle may be turned next from the first intersection on the route to the first intersection. A first step of calculating a distance in a section to a second turning intersection, and a second step of changing a scale of a map displayed on a display screen according to the calculated distance in the first step. And having the following.
[0017]
According to the navigation device of the seventh aspect, the distance from the first intersection where the vehicle turns next on the route to the second intersection where the vehicle turns next to the first intersection is calculated, and according to the calculated distance, Since the scale of the map displayed on the display screen is changed, the way the map is displayed can be changed according to the distance to the intersection where the vehicle turns next. Thus, the user can surely know in advance what the route is like.
[0018]
The demonstration method according to claim 8 is the demonstration method according to claim 7, wherein the second step includes reducing a scale of the map to a scale in which the first intersection and the second intersection fit on the display screen. Is changed. According to the demonstration method of the eighth aspect, since the scale of the map is changed so that the first intersection and the second intersection fit on the display screen, the user is notified of the degree of arrival to the next intersection. be able to. Thus, the user can surely know in advance what the route is like.
[0019]
According to a ninth aspect of the present invention, in the demonstration method of the seventh or eighth aspect, when the distance exceeds a predetermined distance, a two-dimensional map based on a map displayed on the display screen is further provided. A third step is to display the displayed drawing on the display screen and make the vehicle run on the two-dimensional drawing. According to the demonstration method of the ninth aspect, when the calculated distance in the section exceeds a predetermined distance, the vehicle is caused to run on the fixed map, so that the vehicle travels to the next intersection (guide point). Can be notified to the user. Thus, the user can surely know in advance what the route is like. In addition, it is possible not to give unnecessary information to the user.
[0020]
In the demonstration method according to a tenth aspect, in the demonstration method according to the ninth aspect, the third step changes a speed of the vehicle traveling along the route according to a distance in the predetermined section. It is characterized by the following. According to the demonstration method of the tenth aspect, when the calculated distance is a predetermined distance, for example, when the distance is long, the speed of the vehicle traveling along the route is increased to reach the next intersection. Time can be shortened. Thereby, the simulation time to the destination can be reduced.
[0021]
A demonstration method according to an eleventh aspect is the demonstration method according to any one of the seventh to ninth aspects, further comprising a map displayed on the display screen before the vehicle passes through the second intersection. To a three-dimensionally displayed map based on the vehicle. According to the demonstration method of the eleventh aspect, the three-dimensional map based on the vehicle is displayed on the display screen before the vehicle passes through the second intersection, so that the user can be provided near the second intersection. Guidance can be provided accurately.
[0022]
In addition, the demonstration program according to the twelfth aspect causes the computer to cause the vehicle to simulately travel along the searched route from the first intersection where the vehicle turns next on the route. A first means for calculating a distance in a section to a second intersection turning next to the intersection; and a second means for changing a scale of a map displayed on a display screen by the first means in accordance with the calculated distance. Function.
[0023]
According to the demonstration program of the twelfth aspect, the distance from the first intersection where the vehicle turns next on the route to the second intersection next to the first intersection is calculated, and according to the calculated distance. Since the scale of the map displayed on the display screen is changed, the way the map is displayed can be changed according to the distance to the intersection where the vehicle turns next. Thus, the user can surely know in advance what the route is like.
[0024]
According to a thirteenth aspect of the present invention, in the demonstration program according to the twelfth aspect, the second means is arranged so that the first intersection and the second intersection are reduced to a scale that fits on the display screen. It is characterized in that the scale of is changed. According to the demonstration program of the thirteenth aspect, by changing the scale of the map so that the first intersection and the second intersection fit on the display screen, the user can reach the next intersection. Can be notified.
[0025]
A fourteenth demonstration program according to the thirteenth or fourteenth demonstration program according to the thirteenth or fourteenth invention, further comprising a two-dimensional drawing based on a map displayed on the display screen when the distance exceeds a predetermined distance. Is displayed on the display screen and the vehicle travels on the two-dimensional drawing. According to the demonstration program of the present invention, when the calculated distance in the section exceeds a predetermined distance, the vehicle is caused to travel on the fixed map, so that the next intersection (guide point) To the user. Thus, the user can surely know in advance what the route is like. In addition, it is possible not to give unnecessary information to the user.
[0026]
According to a fifteenth aspect of the present invention, in the demonstration program according to the fourteenth aspect, the third means determines a speed of the vehicle traveling along the route according to a distance in the predetermined section. It is characterized by changing. According to the demonstration program of the present invention, when the calculated distance is a predetermined distance, for example, a long distance, the speed of the vehicle traveling along the route is increased to reach the next intersection. The time until can be shortened. Thereby, the simulation time to the destination can be reduced.
[0027]
The demonstration program according to a sixteenth aspect is the demonstration program according to any one of the twelfth to fifteenth aspects, further comprising a step of displaying on the display screen before the vehicle passes through the second intersection. A fourth means for changing a map to be converted into a three-dimensional map based on the vehicle. According to the demonstration program of the present invention, a three-dimensional map based on the vehicle is displayed on the display screen before the vehicle passes through the second intersection. Guidance can be provided accurately.
[0028]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a navigation device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a navigation device 100 according to the present embodiment. The navigation device 100 displays a navigation controller 1, a remote controller 2 for inputting various commands to the navigation controller 1, setting a guidance route, setting various data, and the like, and displaying a map, a guidance route, various menus, a demonstration image, and the like. Display device 3, a CD-ROM 4 for storing map information, a CD-ROM drive 5, a GPS receiver 6 for receiving radio waves from satellites to measure the current position and direction of the vehicle, It has a multi-beam antenna 7 for receiving radio waves and a sensor 8 for self-contained navigation.
[0029]
The GPS receiver 7 performs three-dimensional positioning or two-dimensional positioning processing to calculate the vehicle position and azimuth, and outputs these to the control unit 20 described later together with the positioning time. The self-contained navigation sensor 8 includes a relative azimuth sensor (angle sensor) for detecting a vehicle rotation angle such as a vibrating gyroscope (not shown) and a distance sensor for generating one pulse for each predetermined traveling distance. Is output to the control unit 20 described later.
[0030]
The navigation controller 1 includes a map reading control unit 11, a switch 12, a map buffer 13, a demonstration map storage unit 14, a map drawing unit 15, a VRAM 16, a reading control unit 17, an intersection enlarged drawing. It has a unit 18, a remote control unit 19, a control unit 20, a demonstration route drawing unit 21, an operation screen generating unit 22, a mark generating unit 23, and an image synthesizing unit 24.
[0031]
The map readout control unit 11 calculates a focus position (screen center position) when a map movement operation or a map selection operation is performed using a joystick key, a map reduction / enlargement key, or the like, and sets the vehicle position or the focus position, etc. Predetermined map information is read from the CD-ROM 4 based on the information, and the read predetermined map information is output to the controller 20. The switch 12 switches the output destination of the map data from the CD-ROM drive 5 under the control of the control unit 20.
[0032]
The map buffer 13 stores the map information read from the CD-ROM 4 via the switch 12 and outputs the stored map information to the map drawing unit 15. The demonstration map storage unit 14 simultaneously stores the map data read from the CD-ROM 4 to the map buffer 13 via the switch 12 at the time of the demonstration, and outputs the stored map data to the intersection enlarged drawing unit 18.
[0033]
The map drawing unit 15 generates a map image using the map information stored in the map buffer 13 under the control of the control unit 20, and outputs the generated map image to the generated map image VRAM 16. The VRAM 16 stores the map image, and outputs the stored map image to the reading control unit 17. The reading control unit 17 changes the position of one screen cut out from the VRAM 16 based on the screen center position (own vehicle position, focus position), and scrolls the map according to the movement of the vehicle position or the focus movement.
[0034]
The intersection enlargement drawing unit 18 determines whether or not the own vehicle has reached the intersection at the time of demonstration of the intersection guidance, at the time of setting a detailed route (detailed guidance route) by simulation, or at the time of actual route guidance. This is for displaying an enlarged view of an intersection when approaching within a distance. The remote control unit 19 receives a signal corresponding to an operation of the remote control 2 and instructs each unit.
[0035]
Next, the control unit 20 will be described. The control unit 20 controls the entire navigation controller 1. Further, the control unit 20 performs control for generating a demonstration route, traveling control of the own vehicle position mark along the demonstration route, and drawing control for the demonstration route. Further, the control unit 20 stores the generated demonstration route, and also stores a node position of the generated demonstration route and an intersection flag indicating whether or not the node is an intersection.
[0036]
Further, the control unit 20 refers to the map buffer 13 and calculates and calculates the distance in the section from the first intersection where the vehicle turns next on the route to the second intersection where the vehicle turns next after the first intersection. Each unit is controlled to change the scale of the map displayed on the display screen according to the distance. The control unit 20 refers to the map buffer 13 and changes the scale of the map to a scale at which the first intersection and the second intersection fit on the display 3. Further, the control unit 20 refers to the map buffer 13 and fixes the map displayed on the display 3 when the distance between the first intersection and the second intersection exceeds a predetermined distance. The various parts are controlled so that the vehicle runs by using.
[0037]
Further, the control unit 20 refers to the map buffer 13 and displays a two-dimensional map on the display 3 when the distance between the first intersection and the second intersection exceeds a predetermined distance. . Further, the control unit 20 refers to the map buffer 13 and changes the speed of the vehicle traveling along the route according to the distance in the section from the first intersection to the second intersection. Further, the control unit 20 refers to the map buffer 13 and displays a three-dimensional map based on the vehicle on the display 3 before the vehicle passes through the second intersection. The control unit 20 reads a demonstration program from a storage unit (not shown) and executes a predetermined process.
[0038]
The demonstration path drawing unit 21 generates a demonstration path image and outputs the generated demonstration path image to the image composition unit. The operation screen generating unit 22 displays a demonstration operation screen (menu screen) in response to an instruction from the control unit 20 during a demonstration, or a predetermined operation screen (menu screen) by operating a menu key, a joystick key, or the like in cases other than the demonstration. To draw. The mark generator 23 generates various marks such as a vehicle mark and a focus.
[0039]
Next, a display image on the display according to the present embodiment will be described. FIG. 2 is a view for explaining a part of a display example of a demonstration in which a vehicle is simulated traveling along a searched route. As shown in FIG. 2, 3 is a display, C is a vehicle, CR1 is a first intersection, CR2 is a second intersection, and CR3 is a third intersection. FIG. 2 shows one scene when the vehicle is simulated traveling along the searched route.
[0040]
2, a two-dimensional map or a three-dimensional map is displayed on the display 3 in the order of FIGS. 2 (a) to 2 (e), a two-dimensional map is displayed on the display 3, and in FIGS. 2 (f) to 2 (h), a three-dimensional map is displayed on the display 3, and FIG. In j), a two-dimensional map is displayed on the display 3. As described above, the control unit 20 continuously switches the map displayed on the display 3 from two-dimensional to three-dimensional and from three-dimensional to two-dimensional. FIGS. 2A to 2C show examples in which the scale of the map to be displayed is changed according to the calculated distance, and the two-dimensional map is displayed on the display 3. In addition, as shown in FIGS. 2A to 2C, the control unit 20 displays the map at a reduced scale so that the first intersection CR1 and the second intersection CR2 fit on the display 3. That is, a fixed two-dimensional map (2D) is displayed on the display 3 between the guide points.
[0041]
FIGS. 2A, 2B, and 2C show examples in which a two-dimensional map based on a map displayed on the display screen is displayed on the display 3. FIG. When the distance from the first intersection CR1 to the second intersection CR2 exceeds a predetermined distance, the control unit 20 displays on the screen of the display 3 in the order of FIGS. 2A, 2B, and 2C. Is controlled so that the vehicle C travels (scrolls) on the two-dimensional drawing fixed at.
[0042]
FIGS. 2D to 2H show display examples near the second intersection. As shown in FIGS. 2D to 2H, when the vehicle C approaches the second intersection CR2, which is a guidance point, that is, when the vehicle C comes before the second intersection, the display 3 until now shows on the display 3. What displayed a two-dimensional map as shown in FIGS. 2A to 2E is now displayed as a three-dimensional map as shown in FIGS. 2F to 2H. In addition, as shown in FIGS. 2D to 2H, the map is enlarged and displayed. Thus, the details of the second intersection CR2 near the guide point can be displayed on the display 3. In other words, when the guide point approaches, switching to the enlarged display and switching to the three-dimensional map (3D) can provide the user with detailed information near the intersection.
[0043]
Further, as shown in FIGS. 2 (i) and 2 (j), the control unit 20 displays the fixed two-dimensional map on the display 3 again after passing the second intersection CR2. In addition, the control unit 20 performs control such that the scale of the map displayed on the display 3 is changed according to the distance from the second intersection CR2 to the third intersection CR3 where the vehicle turns next to the second intersection CR2. . Thereby, the way of showing the map can be changed according to the distance to the intersection where the vehicle turns next. As shown in FIG. 2J, the control unit 20 displays the map on a reduced scale so that the second intersection CR2 and the third intersection CR3 fit on the display 3.
[0044]
Next, the operation of the navigation device according to the present embodiment will be described. FIG. 3 is a diagram for describing an operation according to the present embodiment. As shown in FIG. 3, in step S101, the control unit 20 calculates whether the distance to the next intersection is equal to or more than αkm. That is, the control unit 20 calculates the distance in the section from the first intersection CR1 where the vehicle C turns next on the route to the second intersection CR2 where the vehicle C turns next to the first intersection CR1.
[0045]
In step S101, when the distance to the next second intersection CR2 is equal to or longer than αkm, the control unit 20 proceeds to step S102. On the other hand, in S101, when the distance to the next second intersection CR2 is equal to or less than αkm, the control unit 20 proceeds to Step S106. In step S102, the control unit 20 changes the map scale so that the next intersection and the current position are accommodated. That is, the control unit 20 displays the two-dimensional map on the display 3 in a predetermined section from the first intersection CR1 to the second intersection CR2.
[0046]
Further, the control unit 20 controls to change the scale of the map displayed on the display 3. The way of showing the map can be changed according to the distance to the second intersection CR2 where the vehicle C turns next. Thus, the user can surely know in advance what the route is like. Further, the control unit 20 changes the scale of the map to a scale at which the first intersection CR1 and the second intersection CR2 fit on the display 3. Thereby, the user can be notified of the degree of reaching the next second intersection.
[0047]
In step S103, the control unit 20 sets the speed so that arrival at the next second intersection ends with βs. That is, the control unit 20 can change the speed of the vehicle C traveling along the route according to the distance between the first intersection CR1 and the second intersection CR2.
[0048]
In step S104, the vehicle runs on the map (the map does not scroll). That is, when the distance between the first intersection CR1 and the second intersection CR2 exceeds a predetermined distance, the control unit 20 fixes the map displayed on the display 3 and sets the vehicle C on the fixed map. To run. In step S105, the control unit 20 determines whether the vehicle has approached the next intersection. In step S105, when the control unit 20 determines that the vehicle is approaching the next intersection, the process proceeds to step S106.
[0049]
On the other hand, when the control unit 20 determines in step S106 that the vehicle is not approaching the next intersection, the process returns to step S104. In step S106, when the distance to the next intersection approaches, the control unit 20 causes the vehicle to run by scrolling based on the normal own vehicle. That is, the control unit 20 displays the three-dimensional map based on the vehicle C on the display 3 before the vehicle passes through the second intersection CR2. In step S107, the control unit 20 determines whether the vehicle has passed the intersection. If the control unit 20 determines in step S107 that the vehicle has passed the intersection, the control unit 20 returns to step S106. On the other hand, if the control unit 20 determines in step S107 that the vehicle does not pass through the intersection, the process returns to step 101, and the control unit 20 executes the above-described processing.
[0050]
According to this embodiment, the distance from the first intersection where the vehicle turns next on the route to the second intersection where the vehicle turns next after the first intersection is calculated, and the display screen is displayed according to the calculated distance. Since the scale of the map to be displayed is changed, the way the map is displayed can be changed according to the distance to the intersection where the vehicle turns next. Thus, the user can surely know in advance what the route is like. Further, if the calculated distance is a predetermined distance, for example, a long distance, the control unit shortens the time until the vehicle reaches the next intersection by increasing the speed of the vehicle traveling along the route. be able to. Thereby, the simulation time to the destination can be reduced.
[0051]
Each process performed by the control unit 20 is executed by a demonstration program. The demonstration program cooperates with the hardware and performs a process of updating the demonstration data integrally with the hardware. The demonstration method is stored as a demonstration program in a storage medium such as an FD, an HD, or a CD-ROM. Each of the demonstration programs is mounted on a corresponding external storage device, read at the time of execution, and loaded into the RAM. . The storage medium in which the demonstration program is stored may be a semiconductor memory such as a ROM.
[0052]
The embodiment of the present invention has been described above. The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention.
[0053]
【The invention's effect】
According to the present invention described above, the distance from the first intersection where the vehicle turns next on the route to the second intersection where the vehicle turns next after the first intersection is calculated, and the display screen is displayed according to the calculated distance. Since the scale of the map to be displayed is changed, the user can surely know the route in advance.
[0054]
Further, according to the present invention, the speed of the vehicle traveling along the route is increased, so that the simulation time to the destination can be reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram of a navigation device according to the present embodiment.
FIG. 2 is a diagram illustrating a part of a display example of a demonstration in which a vehicle is simulated traveling along a searched route.
FIG. 3 is a diagram for describing an operation according to the present embodiment.
[Explanation of symbols]
1 Navigation controller
3 Display
20 control unit
100 Navigation device

Claims (16)

In a navigation device having a function of simulating a vehicle traveling along a searched route,
A distance is calculated in a section from the first intersection where the vehicle turns next on the route to the second intersection where the vehicle turns next after the first intersection, and the distance is displayed on the display screen according to the calculated distance. A navigation device having a control unit for controlling a scale of a map to be changed. The navigation device according to claim 1, wherein the control unit changes the scale of the map to a scale at which the first intersection and the second intersection fit on the display screen. The control unit, when the distance in the section exceeds a predetermined distance, fixes a map displayed on the display screen, and causes the vehicle to travel on the fixed map. A navigation device as described. 4. The navigation device according to claim 3, wherein when the distance in the section exceeds a predetermined distance, the control unit displays a two-dimensionally displayed map on the display screen. 5. The navigation device according to claim 1, wherein the control unit changes a speed of the vehicle traveling along the route according to a distance in the section. The control unit according to claim 1, wherein, before the vehicle passes through the second intersection, a map displayed three-dimensionally based on the vehicle is displayed on the display screen. A navigation device according to any one of the preceding claims. In a demonstration method of simulating a vehicle traveling along a searched route,
A first step of calculating a distance in a section from a first intersection where the vehicle turns next on the route to a second intersection next to the first intersection;
A second step of changing the scale of the map displayed on the display screen according to the calculated distance in the first step. 8. The demonstration method according to claim 7, wherein in the second step, the scale of the map is changed to a scale at which the first intersection and the second intersection fit on the display screen. The demonstration method further includes, when the distance exceeds a predetermined distance, displaying a two-dimensionally displayed drawing based on a map displayed on the display screen on the display screen, and displaying the drawing on the two-dimensional drawing. 9. The demonstration method according to claim 7, further comprising a third step of driving the vehicle. The demonstration method according to claim 9, wherein the third step changes a speed of the vehicle traveling along the route according to a distance in the predetermined section. The demonstration method further includes a fourth step of changing a map displayed on the display screen to a three-dimensionally displayed map based on the vehicle before the vehicle passes through the second intersection. The demonstration method according to any one of claims 7 to 9, further comprising: A computer for simulating the vehicle along the searched route;
First means for calculating a distance in a section from a first intersection where the vehicle turns next on the route to a second intersection next to the first intersection;
A demonstration program for functioning as a second means for changing a scale of a map displayed on a display screen according to the distance calculated by the first means. 13. The demonstration program according to claim 12, wherein the second unit changes the scale of the map to a scale at which the first intersection and the second intersection fit on the display screen. The demonstration program further displays a two-dimensional drawing based on a map displayed on the display screen on the display screen when the distance exceeds a predetermined distance, and displays the vehicle on the two-dimensional drawing. 15. The demonstration program according to claim 13, further comprising a third means for running. 15. The non-transitory computer-readable storage medium according to claim 14, wherein the third unit changes a speed of the vehicle traveling along the route according to a distance in the predetermined section. The demonstration program may further include fourth means for changing a map displayed on the display screen to a three-dimensional map based on the vehicle before the vehicle passes through the second intersection. The demonstration program according to any one of claims 12 to 15, wherein:

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