JP2001235339A - Navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device capable of providing, using a plurality of screen displays, the image display that is more effective in driving a vehicle. SOLUTION: The navigation device, which can display at the same time a first screen for displaying a simplified map showing an entire route and a second screen for displaying the current position of the vehicle on the map, is characterized in that it controls to change the display of the screen to the preselected one (either the first or second screen) when the current position of the vehicle reaches within a predetermined area within the first screen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle mounted on a vehicle,
The present invention relates to a navigation device that provides route guidance to a driver of a vehicle while displaying a current position of the vehicle in association with map data.

[0002]

2. Description of the Related Art Conventionally, a navigation apparatus can automatically or manually set a route to a destination in advance, and displays an image for guiding a vehicle along a set route. For example, as shown in FIG.
The current vehicle position 1 is displayed so as to be substantially at the center of the screen displaying the map. The display screen is scrolled as the vehicle travels, and is controlled such that the current position 1 is always located at the center of the screen. Further, as shown in FIG. 13A, when the vehicle approaches an intersection or the like, the current position 1 of the vehicle is displayed on the enlarged screen 2 and the screen is switched to a screen where the driver can easily select a course. When a wider map is required, the display is switched to display the current vehicle position 1 on the reduced screen 3 as shown in FIG.

[0003] The prior art for displaying a plurality of maps on a screen is as follows.
For example, JP-A-4-335390, JP-A-6-3078
79 and JP-A-2-61690. In the prior art of Japanese Patent Application Laid-Open No. 4-335390, the screen of a CRT monitor for displaying an image is divided into two right and left sides, an enlarged screen is displayed on the right side, and a reduced screen is displayed on the left side at the same time. It is possible to obtain information and detailed map information around the current position of the vehicle on the enlarged screen. In the prior art of JP-A-6-307879, a guide route of a vehicle is displayed in a straight line using a part of a map display screen, and a main target existing on the guide route is simply displayed. In the prior art of Japanese Patent Application Laid-Open No. 2-61690, the periphery of the current position of the vehicle is displayed on a large scale enlarged screen, and a continuous scale change area connecting the two screens is provided between the large scale reduced screen and the surrounding small scale screen. It provides a detailed map around the current location of the vehicle and guidance of the overall route.

[0004]

As shown in FIG. 13 (a), in the image display centering on the current position 1 of the vehicle on the enlarged screen 2, a point outside the display, such as the remaining portion of the route to the destination, is displayed. In order to see the map, it is necessary for the user himself to perform an operation for scrolling the screen or an operation for reducing the map. In the state where the reduced screen 3 is displayed as shown in FIG. 13B, a wide range can be displayed, so that the front part of the route can be viewed at the same time. However, when compared to the enlarged screen 2 shown in FIG.
Since detailed information around the current position 1 of the vehicle, such as a town name and a landmark, is not displayed, the obtained information is limited.

[0005] Next, when scrolling the map screen, the current map data is often stored in a CD-ROM or the like, which is the mainstream. Therefore, it is necessary to newly read a map screen distant from the current vehicle position 1,
The reading takes time. Furthermore, for scroll display, it is necessary to read out a continuous map screen,
More time is required. Further, in order to perform such scrolling and enlargement / reduction display, it is necessary for the user to perform an operation with intervention.

[0006] A user such as a vehicle driver does not want to provide route guidance on all roads. For example, when traveling on an expressway, if the name of a point exiting the expressway is known, it is possible to exit the expressway relatively easily. On a highway where there are few intersections, junctions and branches with other roads, it is not meaningful to enlarge and display the area around the current position of the vehicle to the full screen, and road information about the city area descending from the highway It is more important to know in advance. In addition, on general roads, there are times when you want to gather information in advance from the current location, such as points to enter an unknown area, complicated intersections, and residential areas that are always lost. It is difficult for the conventional navigation device to sufficiently cope with such a case.

In the case where only the vicinity of the current position of a vehicle is displayed on a large scale as in the prior art of Japanese Patent Application Laid-Open No. 4-335390, an area where detailed information is not necessarily required, such as when the vehicle is running on the highway. Is displayed in detail, and information on an area that needs to be known in detail, such as a destination, cannot be displayed in detail. Japanese Patent Application Laid-Open No. 6-307
In the prior art of 879, although it is possible to easily understand a target in the middle of a route to be displayed in a simplified manner, it is difficult to obtain information on how far the vehicle has progressed on the route.

In the prior art of JP-A-2-61390, a map around the current position of the vehicle is displayed in detail, as in JP-A-4-335390. Can not get to.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a navigation device that can effectively display a plurality of types of screens and display images more effectively for running a vehicle.

[0010]

In order to solve such a problem, the present invention reads out map data from a map storage means in which map data is stored, measures the current position of the vehicle by positioning means, and obtains the map data. And a map forming means for inputting a destination point and searching for a route to the destination and forming image data showing a simplified map. And a first displaying a simplified map from the map forming means.
In a navigation device including a screen and a display control means for controlling to simultaneously display a second screen for displaying the current position of the vehicle on a map, the display control means includes a predetermined range in the first screen. When the current position of the vehicle arrives within, control is performed so as to switch to one of the first screen and the second screen, which is a predetermined one.

According to the present invention, the first screen displays the guide route of the vehicle to the destination, and the second screen displays the current position of the vehicle on a map. On the first screen, the route to the destination is displayed in a simplified manner, the state of the route traveling thereafter can be easily grasped, and the map information around the current position of the vehicle can be known in detail. Then, when a specific point is reached, only the more convenient one of the first screen and the second screen is displayed (the less meaningful one is erased). By erasing the display of the route up to and displaying the map and the current position of the vehicle in a large size, the display becomes very easy to see.

Further, the present invention provides a navigation device for reading map data from a map storage means in which map data is stored, measuring a current position of the vehicle by a positioning means, and displaying an image by associating the current position of the vehicle with the map data. And
Input means for inputting a destination point, a map forming means for searching for a route to the destination and forming image data showing a simplified map, and a first screen for displaying a simplified map from the map forming means. , The second to display the current position of the vehicle on the map
And a display control means for controlling the display so as to simultaneously display the screen and the display screen. The display control means divides the display screen into two vertically and controls the second screen to be on the driver's seat side. It is characterized by the following.

According to the present invention, the display screen is vertically divided into two, and the second screen is controlled so as to be on the driver's seat side.
The driver can more easily see the current position of the vehicle on the driver side, and can effectively support driving.

According to the present invention, there is provided a navigation apparatus for reading map data from a map storage means in which map data is stored and displaying the map data together with the current position of the vehicle obtained by the positioning means. And a second screen for displaying the current position of the vehicle together with the map, and a display control means for controlling to simultaneously display the first screen for displaying the current position of the vehicle together with the map.

According to the present invention, it is possible to simultaneously view a map around the present point and a map around the point desired by the user, which are relatively necessary, thereby effectively supporting driving.

According to the present invention, a navigation device reads out map data from a map storage means in which map data is stored, measures a current position of the vehicle by a positioning means, and displays an image by associating the current position of the vehicle with the map data. At
Input means for inputting a destination point, search means for searching for a route to the destination, and a straight line that simplifies the route searched by the search means and a current position on the straight line corresponding to the current position. A display control means is provided for controlling to simultaneously display a first screen for displaying a position mark and a second screen for displaying the current position of the vehicle together with a map.

According to the present invention, the situation near the current location is:
It is possible to easily know information that is relatively necessary for driving, that is, the current progress status of the entire route, and to effectively support driving.

The present invention also provides a navigation device for reading map data from a map storage unit in which map data is stored, measuring a current position of the vehicle by a positioning unit, and displaying an image by associating the current position of the vehicle with the map data. At
An input unit for inputting a destination point, a search unit for searching for a route to the destination, and a first screen displaying a route map showing the entire route from the current position searched by the search unit to the destination are displayed. It is characterized by comprising display control means for controlling display and switching means for switching the simplicity of the route diagram according to the positional relationship between the current position and the destination. In a preferred embodiment, the display control means includes:
The first screen and a second screen for displaying the current position of the vehicle on a map.
And displaying the screen simultaneously.

According to the present invention, information on the entire route that may be required is displayed at a simple level that is easy for the driver to see, based on the positional relationship between the current point and the destination, so that driving assistance can be effectively performed. it can.

Further, the present invention provides a navigation device for reading map data from a map storage means in which map data is stored, measuring a current position of the vehicle by a positioning means, and displaying an image by associating the current position of the vehicle with the map data. And
Input means for inputting a destination point, and map formation for searching for a route to the destination and forming image data showing a simplified map showing the entirety using the map data stored in the map storage means. Means, a first screen for displaying a detailed map of the specific point, and a second screen for displaying the current position of the vehicle on a map
Display control means for controlling the display so that the screen is simultaneously superimposed and partially displayed such that the second screen is on the upper side.

According to the present invention, the first screen (detailed view), which is wide and has little influence even when a part of the road is not visible, is on the lower side. Since the second screen is displayed on the upper side without being hidden, necessary information is easily displayed, and driving assistance can be effectively performed.

In a preferred aspect of the present invention, the display control means is characterized in that the second screen is a screen for performing scroll display according to the movement of the vehicle, with the current position of the vehicle as a predetermined position. It is easy to check the moving state.

[0023]

FIG. 1 shows a schematic electrical configuration of a navigation device for carrying out the present invention. An electronic control unit (hereinafter abbreviated as “ECU”) 10 receives a signal representing the current position of the vehicle from the positioning means 11 and displays an image on the display unit 13 in association with the map data stored in the map data storage unit 12. indicate. Map data storage unit 12
Is realized by, for example, a CD-ROM or the like, and stores a plurality of map data. One of a plurality of map data can be selected from the operation unit 14, and a part of the data can be designated and stored in the set map screen storage unit 15. The setting map screen storage unit 15 is configured by a RAM capable of storing a plurality of designated areas, and the stored contents are backed up by a battery of the vehicle, and the designated contents are stored for a long time. Can be.

The positioning means 11 receives a plurality of radio waves from GPS satellites and measures the current position of the vehicle, and a vehicle speed sensor 1 for detecting the traveling speed of the vehicle.
7 and a direction sensor 17 for detecting the traveling direction of the vehicle. The operation unit 14 includes a cursor key, a map enlargement / reduction key, and the like. The route setting is also performed by operating the operation unit 14. The setting of the map to be stored in the setting map screen storage unit 15 is performed by operating the operation unit 14 while the selected map is displayed on the display unit 13. The display unit 13 is realized by a color liquid crystal display device or the like, and displays a screen on the first screen 13 by the ECU 10 serving as a display control unit.
a and the divided display on the second screen 13b is possible.

When a user such as a driver of a vehicle inputs a destination via the operation unit 14, a route from the previously input departure point or the current position of the vehicle is automatically set.
In order for the user to confirm the set route, the map displayed on the display unit 13 is scrolled, and a map serving as a key point for reaching a destination point such as a branch point of a point that does not know the road is displayed. Let it.

FIG. 2 shows a state in which a map serving as a key point for reaching the destination is displayed. For example, when specifying the half area near the displayed center as the specified range 20, the operation unit 14 can be used to specify the boundary lines 21, 21.
Specify 22 as the range. By this selection operation, the map screen corresponding to the designated range 20 is stored in the set map screen storage unit 15.

FIG. 3 shows a state of image display according to the first embodiment of the present invention. In the present embodiment, it is assumed that the navigation device is mounted on a right-hand drive vehicle, and a setting map screen storage unit 1 is provided in the left half of the passenger seat far from the driver's seat.
5 is displayed in a stationary state as the first screen 13a as the first screen 13a, and the current position display 23 of the vehicle is displayed on the right side near the driver's seat side while the scroll display centering on the current position display is performed. The second screen 13b is displayed.

The display of the second screen is similar to the scroll display centering on the current position display 23 in the conventional navigation device.

FIG. 4 shows an operation of selecting and storing a map in the designated range 20 in the set map screen storage unit 15. Step a
The operation is started from 1 and in step a2, it waits until the path selection mode is selected. In step a3, the destination is input, and in step a4, the shortest route to the destination is searched for and selected. In step a5, the control waits for the map screen designation mode. When the map screen is specified in the specified range 20 as shown in FIG. 2 in step a6, the specified screen is stored in the set map screen storage unit 15 in step a7, and the operation is ended in step a8.

The current position display 23 as shown in FIG.
In a state of invading the left still screen, it is possible to perform a display that is more easily understood by switching to a display centering on a still image than displaying both screens at the same time. Furthermore, if the current position display 23 scrolls around the current position display 23 when it reaches the vicinity of the center of the still display screen, the state around the vehicle can be easily grasped.

FIG. 5 shows the operation as described above.
Following step a8 in FIG. 4, the operation starts from step b1, and in step b2, guidance according to a preset route is started. In step b3, the display of the stored map screen and the current position screen are performed simultaneously as shown in FIG. In step b4, it is determined whether or not the current position has reached a predetermined position on the stored map screen. If not, the process returns to step b3. When it is determined in step b4 that the current position has reached the predetermined position, the display is switched to a display for updating the map while scrolling at the reduced scale of the stored map screen in step b5. In the above-described embodiment, the map screen is designated and stored in the route setting. However, the present invention is not limited to the route setting, and a map screen serving as a point may be stored and displayed in advance.

FIG. 6 shows a second embodiment of the present invention.
If the vehicle arrives within the still screen 24, the current position display 23
Is performed simultaneously with the scroll screen 25. Further, when the vehicle enters the still screen 24, which is a stored map screen, guidance that is easier to understand can be provided. FIG.
The simultaneous display of two screens as shown in FIG. 6A is performed by switching to the single screen display as shown in FIG. Normal scroll display is performed on a large scale, and the display screen can be switched more smoothly. In the case of simultaneous display of two screens in FIG. 6A, if the storage range 26 corresponding to the still screen 24 is also displayed on the scroll screen 25, the mutual relationship can be more easily understood. FIG.
The first screen 13a shows the entire route from the departure point to the destination point, and the second screen 13b shows a state in which scroll display centering on the current position of the vehicle is performed. FIG. 7A shows an entire route screen 27 in which the map scale from the departure point to the destination point is enlarged and the entire route is displayed on the same screen. In addition, the current position display 23 is performed, and it is shown that the vehicle is proceeding to approximately 6/10 of the route to the destination. FIG. 7B shows only the route image on the entire route screen 28 in a simplified manner, and also shows that the progress state is, for example, 4/10. In FIG. 7C, since the image cannot be displayed in a wide range of the route, it is simplified and shown in a straight line. Also, the current position display 23 is performed, and the extent to which the vehicle has traveled along the entire route is displayed, for example, as 5/10. In addition, the scroll screen 25 and the entire route screen 29 are not limited to the left and right divisions, but may be divided and displayed vertically.

FIG. 8 shows an operation for performing the display as shown in FIG. The operation starts from step c1, and in step c2, waits until the path setting mode is selected. In step c3, a starting point and a destination point are input, and in step c4, an optimal route to the destination point is selected. In step c5, it is determined whether or not the display between the departure point and the destination point is possible. When the map from the start point to the destination point can be displayed by enlarging the scale of the map, the scale of the map that can display both is selected in step c6, and the entire route screen 2 in FIG. 7A is selected in step c7.
7, a current position display 23 and a departure / destination point display are performed. If it is determined in step c5 that it is not possible to display between the departure point and the destination point, a simplified route is created in step c8. In step c9, a current position display 23 and a simplified departure / destination point display are performed as in the overall route screen 28 of FIG. 7B. When an appropriate image cannot be displayed due to a wider range, a straight line is displayed as in the entire route screen 29 in FIG. 7C as described above. In addition, FIG.
The display of the relative arrival route in (c) is performed based on the ratio of the route distance from the departure point to the destination and the travel distance of the vehicle from the departure point to the current position.

FIG. 9 shows an image display state according to the third embodiment of the present invention. FIG. 9A shows a state in which a display is performed in which only the scroll screen 30 around the current position of the normal vehicle is used as a window. For example, at a timing when it is necessary to display the destination screen 31 representing the vicinity of the destination, both of the two screens are displayed as windows as shown in FIG. 9B. Further, as shown in FIG. 9C, the destination screen 31 may be displayed first, and the scroll screen 30 may be displayed thereon as a window, if necessary.

FIG. 10 shows a state in which the scrolling screen 30 centering on the current position of the vehicle as shown in FIG. 9A is displayed, a destination point for navigation is input, and the destination screen 31 is displayed side by side. The following shows the operation to be performed. The operation starts from step d1, and a destination is input in step d2. In step d3, a two-screen display of a scroll screen 30 near the current position and a destination screen 31 near the destination as shown in FIG. 9B is performed. In step d4, it is determined whether or not the vehicle has reached the destination. Upon reaching the destination, the screen is returned to the single screen display of the scroll screen 30 displaying the current position as the center in step d5, and step d6.
To end the operation.

FIG. 11 shows a case where a destination point is inputted and
An operation of performing screen display and returning to one-screen display by reaching a destination or by operating a switch is shown. The operation from step e1 to step e4 is basically the same as the operation from step d1 to step d4 in FIG. In step e5, it is determined whether or not an OFF operation for stopping the two-screen display has been performed by the user. When the OFF operation has not been performed, the process returns to step e4. If the OFF operation has been performed, the process proceeds to step e6, and as in the case where it is determined in step e4 that the vehicle has reached the destination, step e6 is performed.
The display is returned to the single screen display in step 6, and the operation is terminated in step e7.

FIG. 12 shows the operation of switching between displaying a two-screen display and canceling the two-screen display as required by operating a switch after a destination is input. The operation starts from step f1, and a destination point is input in step f2. In step f3, it is determined whether or not the switch for specifying whether or not to perform the two-screen display is ON. When it is not turned on, one-screen display is continued. If it has been turned on, the process proceeds to step f4, where a two-screen display of the current position and the destination is performed. Step f4 below
Steps f8 to f8 respectively correspond to steps e3 to e7 in FIG.

[0038]

As described above, according to the present invention, the guidance screen of the vehicle to the destination is displayed on the first screen, and the current position of the vehicle is displayed on the map on the second screen. On the first screen, the route to the destination is displayed in a simplified manner, the state of the route traveling thereafter can be easily grasped, and the map information around the current position of the vehicle can be known in detail. Then, when a specific point is reached, only the more convenient one of the first screen and the second screen is displayed (the less meaningful one is erased). By erasing the display of the route up to and displaying the map and the current position of the vehicle in a large size, the display becomes very easy to see.

Further, since the display screen is vertically divided into two and the second screen is controlled to be on the driver's seat side, the driver can more easily see the current position of the vehicle on the driver's side, thereby effectively supporting driving. Can be.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic electrical configuration for implementing the present invention.

FIG. 2 is a diagram showing a map selection screen according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a two-screen display state according to the first embodiment of the present invention.

FIG. 4 is a flowchart showing an operation of the first exemplary embodiment of the present invention.

FIG. 5 is a flowchart showing the operation of the first embodiment of the present invention.

FIG. 6 is a diagram showing a display screen corresponding to the operation of the second embodiment of the present invention.

FIG. 7 is a diagram showing a display screen according to a third embodiment of the present invention.

FIG. 8 is a flowchart showing the operation of the third embodiment of the present invention.

FIG. 9 is a diagram showing a display screen according to a fourth embodiment of the present invention.

FIG. 10 is a flowchart showing the operation of the fourth embodiment of the present invention.

FIG. 11 is a flowchart showing the operation of the fifth embodiment of the present invention.

FIG. 12 is a flowchart showing the operation of the sixth embodiment of the present invention.

FIG. 13 is a diagram showing a screen displayed by a conventional navigation device.

[Explanation of symbols]

 Reference Signs List 10 ECU 11 Positioning means 12 Map data storage unit 13 Display unit 13a First screen 13b Second screen 14 Operation unit 15 Setting map screen storage unit 20 Specified range 23 Current position display 24 Still screen 25 Scroll screen 26 Storage range 27, 28, 29 Overall route screen 30 Scroll screen 31 Destination screen

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masayuki Katsuno 1-28-28 Goshodori, Hyogo-ku, Kobe-shi, Hyogo Prefecture Inside Fujitsu Ten Limited

Claims (8)

[Claims] 1. A navigation device for reading map data from a map storage means in which map data is stored, measuring a current position of the vehicle by a positioning means, and displaying an image in correspondence with the current position of the vehicle with the map data. Input means for inputting a destination point; map forming means for searching for a route to the destination and forming image data showing a simplified map; first screen for displaying a simplified map from the map forming means And a second screen for displaying the current position of the vehicle on a map, and a display control means for controlling to simultaneously display the second screen, wherein the display control means is provided within a predetermined range within the first screen. When the current position of the vehicle arrives at the vehicle, control is performed to switch to a predetermined one of the first screen and the second screen. Apparatus. 2. A navigation device for reading map data from a map storage means in which map data is stored, measuring a current position of the vehicle by a positioning means, and displaying an image by associating the current position of the vehicle with the map data. Input means for inputting a destination; a map forming means for searching for a route to the destination and forming image data showing a simplified map; and a first screen for displaying a simplified map from the map forming means. And a second screen for displaying the current position of the vehicle on a map, and a display control means for controlling to simultaneously display the second screen, wherein the display control means vertically divides the display screen into two, A navigation device that controls the second screen to be on the driver's seat side. 3. A navigation device for reading map data from a map storage means in which the map data is stored and displaying the map data together with the current position of the vehicle determined by the positioning means. A navigation device comprising: display control means for controlling to simultaneously display a first screen displaying a part thereof and a second screen displaying a current position of a vehicle together with a map. 4. A navigation device for reading map data from a map storage means in which map data is stored, measuring a current position of the vehicle by a positioning means, and displaying an image by associating the current position of the vehicle with the map data. Input means for inputting a point; searching means for searching for a route to a destination; a straight line which simplifies the route searched by the searching means and a current position on a position corresponding to the current position on the straight line A navigation device comprising: display control means for controlling to simultaneously display a first screen displaying a mark and a second screen displaying a current position of a vehicle together with a map. 5. A navigation device for reading map data from a map storage means in which map data is stored, measuring a current position of the vehicle by a positioning means, and displaying an image by associating the current position of the vehicle with the map data. An input unit for inputting a point; a search unit for searching for a route to a destination; and a first screen displaying a route map showing the entire route from the current position searched by the search unit to the destination. A navigation device comprising: display control means for controlling the route map; and switching means for switching the degree of simplicity of the route map according to the positional relationship between the current position and the destination. 6. The display control means according to claim 1, wherein:
6. The navigation device according to claim 5, wherein control is performed so as to simultaneously display a second screen for displaying a current position of the vehicle on a map. 7. A navigation device which reads out map data from a map storage means in which map data is stored, measures a current position of the vehicle by a positioning means, and displays an image by associating the current position of the vehicle with the map data. A first screen for displaying a detailed map of a point and a second screen for displaying the current position of the vehicle together with the map are displayed simultaneously and partially overlapped such that the second screen is located above the first screen. And a display control means for controlling the navigation device. 8. The display control means according to claim 1, wherein the second screen is a screen for performing scroll display according to the movement of the vehicle, with the current position of the vehicle as a predetermined position. The navigation device according to claim 1.