JP2007093362A - Navigation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To view necessary guide information including a course of a traveling route easily on a display screen without changing the scale reduction of a map display. <P>SOLUTION: A virtual display screen frame K corresponding to a display screen on a display is set on a map in the periphery of the present position V of a vehicle, and the virtual display screen frame K is rotated around the present position V to include a course curve F1 as guide information having high priority. Distance information F2 to the curve or lane information F3 is arranged in the erected state as other guide information in the virtual display screen frame. The display is rotated to have the same attitude as the virtual display screen frame K, and the same display as that in the virtual display screen frame K is displayed on the display. Since the display is rotated corresponding to generation of guide information following vehicle progression and the guide information and the present position V are displayed on one screen, the relation between both items can be understood easily at a glance, and the present position of one's own vehicle is not missed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a navigation apparatus that displays a current position together with a map and performs route guidance to a destination.

For example, a navigation device mounted on a vehicle is configured to obtain the current position of the vehicle based on GPS or the like and display the current position on a display unit together with a map.
Then, when the user inputs the destination at the departure point, a travel route that reaches the destination under a predetermined condition such as the shortest distance or the shortest time is calculated and set, and the route of the travel route is displayed on the display unit. Further, by inputting an intermediate waypoint, it is also possible to calculate and set a travel route that sequentially connects each intermediate waypoint and destination from the departure point, and display the route on the display unit.
The user can easily arrive at the destination by traveling according to the displayed route.

When using such a navigation device, if the actual current position deviates from the set travel route, in order to return to the travel route, the route of the travel route as well as the current position is also included as necessary guidance information. It is desirable to display necessary information on the display unit.
However, since the screen size of the display unit is limited, depending on the scale of the displayed map, the route may be off the display screen and the relationship with the current position cannot be confirmed. On the other hand, in preparation for the case where the route is deviated from the travel route, if the current position and the route of the travel route are always set to a certain scale so that they are displayed on the screen, a detailed road near the travel route will be displayed. If the user wants to know, detailed map information around the current position cannot be obtained.

Therefore, the user needs to scroll the screen display or switch the scale of the map by an operation of a switch or the like to make an appropriate display. However, this is a complicated operation. For example, Japanese Patent Application Laid-Open No. 8-226825 discloses. When the current position deviates from the set route, it detects how far away from the route, and automatically increases the map scale so that a wider range of the map is displayed on the display screen as the departure distance increases. There has been proposed a navigation device which is changed to the above.
Thereby, the scale of the map on the display screen is automatically changed, and the current position and route of the host vehicle can be viewed in one screen.
JP-A-8-226825

However, in the apparatus proposed in the above Japanese Patent Laid-Open No. 8-226825, the current position and route of the host vehicle can be seen on one screen, but the scale is not changed by the user himself / herself. It is difficult to immediately recognize the correlation between the current position on the map shown on the display screen and the distance between the route route and the actual departure distance, as well as others on the map displayed on the screen There is a problem that it takes time to understand the guide information.
This problem applies not only to navigation in a vehicle traveling on a road but also to navigation in a ship or the like navigating a sea route.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a navigation apparatus that can easily understand guidance information including a route on a display screen in view of the above-described problems.

  The present invention provides a vehicle navigation apparatus for performing route guidance by displaying a map and a current position of the host vehicle on a route guidance display unit set on a display, wherein the route guidance display unit is a predetermined position that accompanies the current position and the progress of the vehicle. Display control means for deforming the route guidance display unit so as to include a point related to the guidance information in the display area.

  By deforming the display area of the route guidance display section, the current position and the point related to the predetermined guidance information are included in the display area of the route guidance display section, so that the current position and guidance can be changed without changing the display scale. You can easily understand the relationship between information points at a glance.

Next, an embodiment in which the present invention is applied to a vehicle will be described with reference to examples.
FIG. 1 is a block diagram showing the configuration of the first embodiment.
The navigation device 1 includes, as a basic configuration, an input operation unit 2, a current position detection unit 3 using GPS, a map information storage unit 4 storing road map information, a guidance information storage unit 15, a speaker 5, a display 6, and a display A display rotation drive unit 7 that changes the posture by rotating 6 and a navigation control unit 10 connected thereto are provided.
The guidance information storage unit 15 stores lane information other than road map information, intersection information, facility information, and the like, and also travel history information.

The display 6 can display a map around the current position of the vehicle and the current position of the vehicle on the map under the control of the navigation control unit 10. An operation menu screen is also displayed on the display 6 so that the operator can perform operations such as route search.
The input operation unit 2 has various button switches (not shown) for destination input, route search, map display scale change, menu screen display, item selection operation on the menu screen, and the like.
In particular, destination input is performed by inputting longitude / latitude, address, telephone number or the like, and the position on the map displayed on the display 6 is indicated by a cursor by an operation from the input operation unit 2. You can also.

Next, the navigation control unit 10 includes a route search unit 11, a route guide unit 12, an audio output control unit 13, and a display adjustment unit 14.
The route search unit 11 stores map information on a recommended travel route on the map from the current position (departure point) of the vehicle detected by the current position detection unit 3 to the destination set by the input operation unit 2. Search on the map read from the unit 4, and output the result to the route guide unit 12.
When the destination is not set and the route search is not performed, the route search unit 11 directly uses the current position from the current position detection unit 3 and the map information around the current position from the map information storage unit 4 as it is. Forward to.

The route guide unit 12 provides guidance information to be sequentially guided along the travel route based on the searched travel route, or guide information to be sequentially guided along the traveling road when a destination is not set. The information is read from the map information storage unit 4 and the guide information storage unit 15. The guidance information includes display target information including a route display to be displayed on the display 6 and audio target information to be output from the speaker 5.
Then, according to the progress of the current position of the vehicle from the current position detection unit 3, the route guide unit 12 follows a guide command according to the searched travel route, or a traveling direction when a destination is not set. As the guide command, the audio target information is output to the audio output control unit 13, and the display target information is output to the display adjustment unit 14.

The audio output control unit 13 causes the speaker 5 to output audio target information such as “Please turn left at the next intersection” based on the guide command.
In this embodiment, the entire area of the display screen G of the display 6 is used as the route guidance display unit, and the display adjustment unit 14 displays the display target information on the map on the map 6 based on the guide command. Is used to set the orientation of the display 6 and the arrangement of the display target information on the display screen.

As shown in FIG. 2A, the map data frame W displays a vehicle display of the current position (hereinafter simply referred to as the current position V) and a map of the current scale with the vehicle traveling direction up. Therefore, what should be displayed information such as facility information read from the guidance information storage unit 15 is located at each point. In FIG. 2, only the route R is shown as a map.
Information to be displayed as guidance information includes route information directly related to the driving operation such as curves, branch points, slopes, intersections, etc. shown in (b) in FIG. 2 (b), and (b) in FIG. ), Auxiliary information related to driving operations such as lane information, distance information, intersection guide map, etc., and input to be displayed by a well-stayed facility or operator as shown by (c) in (d) of FIG. There is surrounding information such as set facilities and landmarks.

On the map of the map data frame W, a virtual display screen frame K corresponding to the route guidance display unit (that is, the display screen G of the display 6) is set. The setting procedure will be described later.
The display adjustment unit 14 displays the map and display target information in the set virtual display screen frame K on the display 6 and outputs a posture command indicating the posture of the virtual display screen frame K to the display rotation drive unit 7 to display the display. 6 is rotated to the same angle as the virtual display screen frame K on the map data frame W.
Here, on the display screen G of the display 6, the current position V of the vehicle is set to be displayed at a fixed point at the bottom in the vertical direction at the center in the horizontal width direction of the screen.
The navigation control unit 10 is constituted by a CPU, and the map information storage unit 4 and the guidance information storage unit 15 are each made of an appropriate medium such as a hard disk drive or a compact flash (registered trademark) memory.

Next, the flow of the route guide process on the display screen G of the display 6 having the above configuration will be described with reference to the flowchart of FIG.
Here, it is assumed that the scale of the map display on the display screen G is set to an arbitrary scale by the operator.
First, in step 100, the route search unit 11 checks whether a destination is set by an input from the input operation unit 2.
If the destination is set, the process proceeds to step 101 to search for a travel route from the departure point to the destination. For example, a route having the shortest distance is selected as the travel route, or a route having the shortest time is selected based on the travel history.

  In this way, the travel route is determined, and in step 102, the route guide unit 12 extracts the guidance information related to the travel route from the guidance information storage unit 15, and on the travel route according to the movement of the current position V as the vehicle travels. Start guidance for intersections to bend.

Display target information to be displayed on the display 6 as a guide is set as follows in step 103.
First, as shown in FIG. 4, on the map data frame W, the length from the vehicle's current position V to the farthest point in the virtual display screen frame K (corresponding to the display screen G of the display 6) is defined as the radius. The range to be displayed (that is, since the current position V is located at the lower part of the virtual display screen frame K, the farthest point is the upper corners of the virtual display screen frame K) as the “displayable range” (M). Define. This reflects that the map scale on the display screen G of the display 6 coincides with the scale on the map data frame W, and those that are beyond the displayable range M cannot be displayed on the display screen G at the current scale. is doing.

First, in step 103, the route guide unit 12 extracts curves, branch points, hills, intersections, and the like from the displayable range M as route information directly related to the driving operation along the route of the travel route.
For the extracted route information, priority points are determined based on the traveling direction, the distance from the current position, the degree of danger, and the like.
That is, first,
m = f1 ((x1, y1), (x2, y2)) <M
Thus, a distance between two points m = f1 ((x1, y1), (x2, y2)) from the current position V (x1, y1) to the target point (x2, y2) of the route information is within the displayable range M. Determine that there is. (X1, y1) and (x2, y2) indicate coordinates on the map data frame W with the horizontal axis as the x-axis and the vertical axis as the y-axis.
And
N1 = f2 (D, m)
Thus, the priority point N1 is calculated. Here, D is a risk set in advance for the target point of the route information. N1 increases as D increases and m decreases (closer to the current position).

Next, in step 104, the route guide unit 12 extracts lane information, distance information, an intersection guide map, and the like as auxiliary information related to the driving operation from the displayable range, and determines the priority point.
That is, as in the case of the route information directly related to the driving operation, first, it is determined that the distance m between the two points to the target point of the auxiliary information is within the displayable range M.
And
N2 = f2 (Q, m)
Thus, the priority point N2 is calculated. Here, Q is the importance set in advance in the auxiliary information. N is higher as Q is larger and m is smaller.
The importance of the auxiliary information is determined based on the order in which the relevance to the route information directly related to the driving operation is high or the amount of information.

Subsequently, at step 105, the route guide unit 12 extracts the facility and other peripheral information from the displayable range M, and determines the priority point based on the distance from the travel route, the stop frequency in the history information, and the like.
That is, it is determined that the distance m between two points to the target point of the peripheral information is within the displayable range M.
And
N3 = f2 (Φ, m)
Thus, the priority point N3 is calculated. Here, Φ is an importance set in advance in the peripheral information, and as Φ increases and m decreases, N3 increases.

In step 106, the route information directly related to the driving operation obtained in the previous three steps, the auxiliary information related to the driving operation, and the priority points N1, N2, and N3 of the peripheral information are assigned weights set in advance according to the category. To calculate the overall priority. As for the weight, a large weight is added to the route information directly related to the driving operation. Hereinafter, the weight is set to be smaller in the order of the auxiliary information related to the driving operation and the peripheral information.
The route guide unit 12 outputs the display target information set with the overall priority to the display adjustment unit 14 as a guide command. However, this guide command is positioned as a display candidate on the display 6.

In step 107, the display adjustment unit 14 calculates the orientation of the display 6 (route guidance display unit).
Here, the virtual display screen frame K as shown in FIG. 5 is centered on the current position V of the vehicle so that the display target information to be shown as the position on the map in the guide command is included in the virtual display screen frame K. Performs calculation to rotate.
At this time, the virtual display screen frame K is rotated so as to be included in order from the highest priority.
For example, the rotation angle α of the virtual display screen frame K is obtained by using the target point (x2, y2) and the current position (x1, y1) of the route information with the highest priority.
α = tan ⁻¹ {| y2-y1 | / | x2-x1 |} -θ
... (when x2-x1 ≧ 0)
α = −tan ⁻¹ {| y2−y1 | / | x2−x1 |} + θ
... (when x2-x1 <0)
Ask for.
Here, θ is an angle formed by a line connecting the current position V and the upper corner on the x-axis positive side of the virtual display screen frame K with respect to a horizontal line passing through the current position V (x1, y1).

As a result, among the display target information related to the position on the map, the information with a low priority is removed from the virtual display screen frame as a result of being rotated so that the high priority is included in the virtual display screen frame K. Sometimes it happens.
In addition, when the same priority is extracted, the smaller amount of information (display size) is given priority based on the displayable amount on the display screen of the display, or the higher priority is displayed. It is possible to give priority to the one closer to the determined one.
In FIG. 5, as the route information directly related to the driving operation, the curve F1 of the branch point with the highest priority is included in the virtual display screen frame K.

In the next step 108, in the rotated virtual display screen frame K, auxiliary information related to other driving operations, text, and the like are displayed in a space where display target information related to the position on the map is avoided. Setting is made so that the peripheral information indicated by the mark is arranged in an upright state.
In FIG. 5, distance information F2 to the curve of the branch point and lane information F3 indicating that the lane connected to the curve of the branch point is the right lane are arranged in the left space of the virtual display screen frame K.

  Although depending on the position of the route information directly related to the driving operation, the display position of the auxiliary information and the peripheral information in the virtual display screen frame K can also be set according to the priority. For example, while avoiding route information directly related to driving operations, place the one with high priority in the height direction as much as possible in the center, the one with low priority at the top or bottom side, and the direction in the horizontal direction. It is preferable to arrange the larger one on the side closer to the driver's seat so that the driver can easily see, and the lower one on the side closer to the passenger seat.

In step 109, the display adjustment unit 14 outputs an attitude command indicating the attitude of the virtual display screen frame K on the map data frame W to the display rotation driving unit 7. Thereby, the display 6 is rotated at the same angle as the virtual display screen frame K.
In step 110, the display adjustment unit 14 causes the display 6 to display the display target information set in the virtual display screen frame K as guide information as it is arranged.
Thereafter, in step 111, it is checked whether or not the route guidance has been completed by arriving at the destination. While the guidance is not finished, step 103 and subsequent steps are repeated.

FIG. 6 shows the transition of the posture of the virtual display screen frame K controlled as described above in accordance with the progress of the vehicle from the default state at the start.
In any of the virtual display screen frames K, the current position V of the vehicle is fixed and is rotated around the current position V as a rotation center. Further, the map on the map data frame W is updated so that the traveling direction of the host vehicle at the current position V is always kept upward.
FIG. 7 shows the change in the posture of the display 6 and the display in the display screen G controlled based on this. Even when the display 6 is tilted, the traveling direction of the display screen G is always upward when viewed from the observer.
When the route guidance is completed in step 111, the process returns to step 100. If a new destination has been set, step 101 and the subsequent steps are repeated, and if a new destination has not been set, the routine proceeds to step 112.

On the other hand, if the destination is not set in the check in step 100, the process proceeds to step 112, and the route guide unit 12 detects the traveling road and the traveling direction of the vehicle. The detection of the traveling road and the traveling direction is calculated from, for example, the current position of the vehicle and the change in the current position by the current position detection unit 3.
Thereafter, in step 113, the route guide unit 12 extracts curves, slopes, intersections, and the like from the displayable range M as route information directly related to the driving operation along the traveling road on which the vehicle is traveling.
For the extracted route information, priority points are determined based on the traveling direction, the distance from the current position, the degree of danger, and the like.

Next, in step 114, the route guide unit 12 extracts lane information, distance information, an intersection guide map, and the like as auxiliary information related to the driving operation from the displayable range M, and determines the priority point.
The priority points are determined based on the order in which the relevance to the route information directly related to the driving operation is high, the amount of information, and the like.
Subsequently, in step 115, the route guide unit 12 extracts the facility and other peripheral information from the displayable range M, and determines the priority point based on the distance from the traveling road and the stop frequency in the history information.

In step 116, the route information directly related to the driving operation obtained in the previous three steps, the auxiliary information related to the driving operation, and the priority points of the peripheral information are attached with weights set in advance in accordance with the classification, and comprehensively added. Calculate the priority. As for the weight, a large weight is added to the route information directly related to the driving operation. Hereinafter, the weight is set to be smaller in the order of the auxiliary information related to the driving operation and the peripheral information.
The route guide unit 12 outputs the display target information set with the overall priority to the display adjustment unit 14 as a guide command.
Steps 113 to 116 are the same processing as steps 103 to 106 except that the searched route to the destination is not the route so that the route is the route of the road currently being driven. .

After step 116, in step 117, the display adjustment unit 14 rotates the virtual display screen frame K so that the display target information to be shown as the position on the map in the guide command is included in the virtual display screen frame K. Perform the operation.
In the next step 118, on the rotated virtual display screen frame K, auxiliary information related to other driving operations is erected in a space that avoids display of display target information related to the position on the map. Set to place in the state.
In step 119, the display adjustment unit 14 outputs a posture command indicating the posture of the virtual display screen frame K on the map data frame W to the display rotation driving unit 7, and is set in the virtual display screen frame K in step 120. The displayed display target information is displayed on the display 6 as it is arranged.
Steps 117 to 120 are the same as steps 107 to 110.

After step 120, the process returns to step 100. If the destination has not been set, step 112 and the subsequent steps are repeated, and if a new destination has been set, the processing proceeds to step 101 and thereafter.
In this embodiment, steps 103 to 110 and steps 113 to 120 in the above flow constitute the display control means in the invention.

  The present embodiment is configured as described above, and in the vehicle navigation device that performs route guidance by displaying the map and the current position of the host vehicle on the display screen G of the display 6, the entire area of the display screen G is used as a route guidance display unit. Since the display 6 is rotated so that the route guidance display unit includes the current position and a point related to predetermined display target information as the vehicle travels, the current position and the current position can be changed without changing the display scale. It is possible to easily understand at a glance the relationship between points related to display target information.

Predetermined display target information is selected in descending order of priority from route information directly related to the weighted driving operation, auxiliary information related to the driving operation, and surrounding information. Never miss.
Further, since the display 6 is rotated around the current position V displayed at a predetermined position on the display screen G, the current position of the host vehicle is not lost, and the surrounding situation can be easily grasped.
Furthermore, since the map is displayed on the display screen G so that the traveling direction of the host vehicle at the current position V viewed from the observer is maintained in a certain direction, particularly upward, it is easier to grasp the surrounding situation.

Next, a second embodiment will be described. This is because the first embodiment rotates the display 6 whereas the display 6A having a display screen GA with a relatively large area displays route guidance on a part of the display screen. The display area of the route guidance display unit is deformed (rotated) in accordance with display target information.
FIG. 8 is a block diagram showing the configuration of the second embodiment. The display rotation drive unit 7 in the first embodiment of FIG. 1 is eliminated, and the display area of the route guidance display unit H (see FIG. 9) is rotated by the output from the display adjustment unit 14A of the navigation control unit 10A to the display 6A. Display target information is displayed. Other configurations are the same as those of the first embodiment of FIG.

  The control process in the navigation control unit 10A corresponds to the virtual display screen frame K rotated on the map data frame W, instead of outputting a posture command indicating the posture due to the rotation of the virtual display screen frame K to the display rotation driving unit. Since the route guidance display portion H having the same posture is set on the display screen GA of the display 6A only in the point different from the first embodiment, the description is omitted.

Thereby, as shown in FIG. 9, the route guidance display portion H changes in the wide display screen GA of the display 6A as the vehicle advances. Here, the route guidance display portion H rotates in response to the change in the attitude of the virtual display screen frame K shown in FIG.
In any of the screens, the current position V of the vehicle in the display screen GA is fixed, and the route guidance display portion H rotates around the current position V as a rotation center.
The display target information set in the virtual display screen frame K is displayed on the route guidance display portion H in the display screen of the display as it is arranged.
In FIG. 9, S indicates an operation button or message displayed in a space that avoids the route guidance display portion H displayed on the display screen GA.

  The present embodiment is configured as described above, and in the vehicle navigation apparatus for performing route guidance by displaying a map and the current position of the host vehicle on the display, the route guidance display unit H is provided on a part of the display screen GA of the display 6A. Since the route guidance display unit H is rotated and displayed so as to include the current position and the point related to the predetermined display target information as the vehicle travels in the route guidance display unit H, the display Even without changing the scale, the relationship between the current position and the point related to the display target information can be easily understood at a glance.

In addition, since the predetermined display target information included in the route guidance display portion H is selected in the order of priority, the important information necessary for traveling is not lost as in the first embodiment. Since the route guidance display part H rotates around the current position V, the current position of the host vehicle is not lost, and the surrounding situation can be easily grasped.
Since the map is displayed on the route guidance display portion H so that the traveling direction of the host vehicle at the current position V viewed from the observer is maintained in a certain direction, particularly upward, it is easier to grasp the surrounding situation.

  In particular, since the route guidance display portion H is rotated and displayed in the display screen GA of the display as described above, a display rotation driving portion for rotating the display itself is not required as compared with the first embodiment. It has the advantage that it can be implemented simply and at low cost.

In the second embodiment, the route guidance display unit H having a fixed shape displayed in the wide display screen GA of the display 6A is rotated. However, the deformation of the route guidance display unit is not limited to the rotation. For example, the shape of the route guidance display unit can be changed.
FIG. 10 shows an example of a change in the screen display of the route guidance display unit displayed along with the accompanying information during route guidance.
In this modification, (a) is the default screen, and the entire upper half of the display screen GB is the route guidance display portion J. In the lower half of the display screen GB (below the route guidance display portion J), additional information Z1 to Z4 relating to the map displayed on the route guidance display portion J is displayed. In this case, a leader line from the point related to the supplementary information on the map of the route guidance display unit H to the supplementary information may be displayed in an overlapping manner.
The incidental information includes auxiliary information related to the driving operation and surrounding information.

(B) shows that when the display target information on the front point of the route R that is straight in the traveling direction of the vehicle has the highest priority, the route guidance display unit H is displayed in the horizontal direction of the display screen GB in order to display the maximum priority. A state in which the display screen is moved to one end side and is changed to be vertically long over the entire upper and lower sides of the display screen GB is shown. The supplementary information Z1 to Z4 are arranged vertically in a space avoiding the route guidance display portion H.
Although the current position V of the vehicle changes in the display screen GB with the deformation of the route guidance display section H, the current position V is displayed as a route guidance display in order to display as much information as possible to be displayed in front of the current position. It is set near the lower side of the part H.

  (C) is a case where there is a lot of peripheral information along the travel route to be displayed together with the route shape having high priority. By expanding the route guidance display section H over the entire area of the display screen GB and displaying the supplementary information Z1 to Z4 on the map, it is possible to display the travel route in which the route is bent forward in the traveling direction together with the peripheral information. It is what I did. The supplementary information Z1 to Z4 are arranged so as not to overlap as much as possible with the route of the travel route and the points of the peripheral information.

(D) indicates that the route R is curved when the route curve has a high priority, and the route guidance display portion H has a triangular shape that occupies the upper half of the display screen GB. The shape of the route guidance display section H makes the image of the direction of the route R bend.
The supplementary information Z1 to Z4 are arranged in the space of the lower diagonal half avoiding the route guidance display portion H.

FIG. 10 shows an example in which the route guidance display unit H and the accompanying information Z1 to Z4 are displayed on the display screen GB during the route guidance. For example, when the menu is being operated, the accompanying information Z1 to Z4 is displayed. Instead, the operation buttons may be displayed together with the route guidance display unit H.
In this case, the leader line connecting the point on the map and the accompanying information is not displayed.
Each operation button displays the function set for the operation button in a frame representing the button shape. When the operation buttons are arranged in a space avoiding the route guidance display portion H, if the remaining space becomes narrow as a result of enlarging the area of the route guidance display portion H, the frame representing the button shape is shortened or reduced. Thus, a predetermined number of operation buttons can be displayed in a space.

  According to this modification, the layout of the supplementary information and operation buttons is changed corresponding to the modification of the route guidance display section H, so that the display screen GB of the display 6A is effectively used and a large amount of information is displayed. There is a merit that can be.

  In addition, although embodiment demonstrated the example applied to the navigation apparatus for vehicles, application object is not limited to this, This invention is applicable also to navigation apparatuses, such as a ship.

It is a block diagram which shows the structure of the 1st Example of this invention. It is explanatory drawing which shows a virtual map data frame. It is a flowchart which shows the flow of a process of a route guide. It is explanatory drawing which shows the displayable range on a map data frame. It is explanatory drawing which shows the rotation point of a virtual display screen frame. It is a figure which shows the example of a transition of the attitude | position of the virtual display screen frame accompanying advancing of a vehicle. It is a figure which shows the attitude | position and display change of a display. It is a block diagram which shows the structure of a 2nd Example. It is a figure which shows the change of the route guidance display part in the display screen of a display. It is a figure which shows the modification of a change of a route guidance display part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 2 Input operation part 3 Current position detection part 4 Map information storage part 5 Speaker 6, 6A Display 7 Display rotation drive part 10, 10A Navigation control part 11 Route search part 12 Route guide part 13 Voice output control part 14 Display adjustment Part 15 Guide information storage part G, GA, GB Display screen H, J Route guidance display part K Virtual display screen frame M Displayable range V Current position W Map data frame Z Additional information

Claims (10)

In a navigation device that provides route guidance by displaying the current position of a map and a moving body on a route guidance display unit set on a display,
The route guidance display unit includes display control means for deforming the route guidance display unit so that the current position and a point related to predetermined guidance information accompanying the progress of the moving body are included in the display area. Navigation device. The predetermined guide information is information selected in descending order of priority from route information directly related to weighted driving operations, auxiliary information related to driving operations, and surrounding information. Item 4. The navigation device according to Item 1. 3. The navigation apparatus according to claim 1, wherein the display control unit rotates the route guidance display unit as the modification. 4. The navigation apparatus according to claim 3, wherein the display control means rotates the route guidance display unit around a current position displayed at a predetermined position of the route guidance display unit. The entire display screen of the display is set as the route guidance display unit,
The navigation device according to claim 3 or 4, wherein the display control means rotates the display. The route guidance display unit is set to be displayed on a part of the display screen of the display,
5. The navigation apparatus according to claim 3, wherein the display control unit rotates the route guidance display unit displayed on the display screen of the display. The route guidance display unit is set to be displayed on a part of the display screen of the display,
The navigation device according to claim 1 or 2, wherein the display control means changes the shape of the route guidance display unit displayed on the display screen of the display as the modification. The display control means displays the map on the route guidance display unit so as to maintain the traveling direction of the host vehicle at the current position viewed from the observer in a constant direction regardless of the deformation of the route guidance display unit. The navigation device according to any one of claims 1 to 7, wherein: The navigation device according to claim 8, wherein the certain direction is an upward direction. In a navigation device that provides route guidance by displaying the current position of a map and a moving body on a route guidance display unit set on a display,
A display control method in a vehicular navigation device, wherein the route guidance display unit is deformed so as to include the current position and predetermined guidance information accompanying the progress of a moving body in a display area thereof.

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