JP2004061648A - Map display apparatus and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize more appropriate map display considering the moving velocity or the like. <P>SOLUTION: When an information display-menu window screen W2 is synthesized and displayed on a map screen W1, the information display-menu window screen W2 is displayed while animated if the velocity of the car is equal to or lower than the preliminarily determined velocity so as to present a high-grade display. For example, the information display-menu window screen W2 moves from the right side to the left side in the screen as shown by a broken arrow directing the left in Fig.(b), or the screen W2 is displayed as wiped as shown by a broken arrow in the vertical direction in the screen W2. If the velocity of the car exceeds the preliminarily determined velocity, the information display-menu window screen W2 is displayed as a still image as shown in Fig.(d). Therefore, more appropriate map display can be realized while preventing the driver from being too much preoccupied by the animation. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a map display device that is mounted on a moving body and displays a current position and a map image and a guide image around the current position.
[0002]
[Prior art]
2. Description of the Related Art There is known a technique in which a position is detected by a GPS or the like as a vehicle travels, map data around the position is read from a CD-ROM or a DVD-ROM, and displayed on a display together with a vehicle mark indicating the position of the vehicle. I have. Further, on the display screen, a menu screen showing functions that can be instructed by the user, such as enlargement / reduction / movement of a map, and a window for displaying information such as intersection information and sightseeing spot information are synthesized and displayed. I have. For example, an information display window or the like is displayed while being animated for the purpose of, for example, displaying a high-class feeling.
[0003]
Furthermore, a window for setting a guidance route from the departure point to the destination, displaying the guidance route on a map, and displaying information such as intersection information, traffic congestion information, sightseeing spot information, etc. according to the current position of the vehicle. Is also provided on the display screen.
[0004]
[Problems to be solved by the invention]
However, the menu screen and the information display screen displayed on the map screen in this way are displayed in a predetermined method programmed and at a predetermined position regardless of the moving speed of the host vehicle and the guidance state of the route. Therefore, various inconveniences have occurred. For example, when an information display window or the like is displayed while being animated, when the host vehicle is running at high speed, it is not preferable that the animation is overly distracted. Further, it is not preferable that the guidance route and the map around the guidance route are difficult to see by the menu screen or the information display window.
[0005]
Therefore, an object of the present invention is to realize a more appropriate map display in consideration of a moving speed, a route guidance situation, and the like.
[0006]
Means for Solving the Problems and Effects of the Invention
The map display device according to claim 1, which has been made to achieve the above object, is a map display device mounted on a moving body and capable of displaying another screen on a map screen by combining it. In accordance with the moving state of the moving object identified by the above, the display method of another screen to be synthesized and displayed on the map screen is changed and controlled. Various examples of other screens are conceivable. For example, as shown in claim 15, the screen includes at least one of a function menu screen such as enlargement / reduction / movement of a map and a current position peripheral information screen such as intersection information. Can be considered.
[0007]
The contents of the change control of the display method of another screen to be synthesized and displayed include, for example, the change control of the animation display method in which the screen contents, the screen position, the screen size, the screen shape, and the like are changed. It is possible to do. Further, regarding the moving state of the moving body, for example, it is conceivable to change and control the display method of another screen according to the moving speed as described in claim 4. It is conceivable to change and control the display method of another screen depending on whether the moving speed exceeds a predetermined determination speed. For example, a display control is considered in which a simple animation is displayed when the moving speed exceeds the determination speed, and a complicated animation is displayed when the moving speed is within the determination speed. In this case, as a simple animation display, for example, a display combining image size and shape change with a small number of frames can be considered. Can be considered. In addition, the animation display includes not only a change in the image content but also a change in the image position and a change in the image size and shape. Further, control such as displaying a complete still image instead of simple animation is also possible.
[0008]
By controlling the change of the display method according to the moving speed of the moving body in this manner, even when the information display window or the like is displayed while animating, for example, when the own vehicle is running at a high speed, the simple display is performed. The display is switched to a simple animation or a still image, and a more appropriate map display can be realized while preventing the animation from being overly distracted.
[0009]
It is conceivable that a plurality of determination speeds are set as described in claim 6, and the display method is changed for each determination speed. For example, as the determination speed increases, the degree of simplification of the animation is increased, and when the maximum determination speed is exceeded, a still image is displayed.
[0010]
Further, as described in claim 7, such a determination speed may be configured to be arbitrarily set by a user. For example, when a user is driving a vehicle as a moving object, there is an individual difference even in a simple animation that does not hinder driving. Therefore, if the judgment speed can be set by the user himself, it is possible to cope with such individual differences.
[0011]
In addition, regarding the moving state of the moving body, the display method of another screen may be changed and controlled according to whether the moving body is moving or stopped, for example, as described in claim 8 instead of the moving speed described above. . For example, when the moving object is a vehicle having a parking brake, it is possible to specify whether the vehicle is moving or stopped based on the operating state of the parking brake, for example, as described in claim 9, so that it can be easily determined.
[0012]
On the other hand, the map display device according to claim 2 is mounted on a moving body, and can display a map screen so that a guidance route for route guidance can be identified, and synthesizes another screen on the map screen. However, if the display position of the guidance route in the map screen specified by the display position specifying means and the display position of the other screen combined and displayed on the map screen overlap with each other, At least one of the other screen display method and the guidance route display method is changed and controlled. For example, as described in claim 10, it is conceivable to change and control the display position of another screen to be synthesized and displayed so that the guidance route and the periphery of the guidance route on the map screen are not hidden as much as possible. When a guidance route is displayed, it is preferable that the guidance route and the map around the guidance route are in a state in which they can be visually recognized as much as possible. Therefore, if they are combined and displayed so that they are not hidden as much as possible, more appropriate map display can be realized.
[0013]
Depending on the position of the guide route and the display size of another screen to be combined, the control of the display position alone may hide the guide route and its surroundings (such as the guide route). Therefore, in such a case, it is conceivable to change and control the display size of another screen to be synthesized and displayed as described in claim 11. That is, it is displayed in a reduced size. However, if the size is reduced too much, the content to be transmitted to the user on another screen is not sufficiently transmitted. Therefore, it is considered that there is a practical limit for reduction. Therefore, if the display position can be changed first, it is preferable to give priority to that change. That is, if both the control of the display position of the other screen and the control of the display position of the guidance route can be performed as described in claim 12, if both of them are still unable to cope, the display size is not changed. Make the change.
[0014]
It is also assumed that the guidance route or the like is hidden even if the size is reduced to the limit. Therefore, in such a case, it is conceivable that the map screen and the other screen are transparently synthesized so that the guide route can be visually recognized through the light (see claim 13).
It should be noted that these are thoughts that the display of the guidance route is prioritized when the guidance route exists, and when the guidance route itself is not displayed, another screen to be synthesized and displayed is displayed in a predetermined manner. What is necessary is just to display in a predetermined size at a position.
[0015]
The movement in the map display device according to any one of claim 1 and claims citing the same (specifically, claims 3 to 9, and claims 15 to 15). The state specifying means and the display control means for changing and controlling the display method according to the moving state of the moving object specified by the moving state specifying means are configured as a program for causing a computer to function as claimed in claim 16. You may.
[0016]
Similarly, in the map display device according to any one of Claim 2 and Claims citing the same (specifically, Claims 10 to 13 and Claim 15 referring to Claims 2 to 10 to 14). The display position specifying means and the display control means for changing and controlling the display method in accordance with the display position of the guidance route on the map screen specified by the display position specifying means are for causing a computer to function as claimed in claim 17. May be configured as a program.
[0017]
In this case, the program is stored in a computer-readable recording medium such as an FD, MO, DVD, CD-ROM, hard disk, or memory card, and the stored program is loaded into a computer system as needed. It can be used by starting. Alternatively, the program may be recorded in a ROM or a backup RAM as a computer-readable recording medium, and the ROM or the backup RAM may be incorporated in a computer system and used. Further, the program is not limited to the one stored in the recording medium, and may be used by being loaded and activated via a network.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments to which the present invention is applied will be described with reference to the drawings. It is needless to say that the embodiments of the present invention are not limited to the following examples, and can take various forms as long as they belong to the technical scope of the present invention.
[First embodiment]
In the first embodiment, since the map display device is applied to a navigation system, a schematic configuration of the navigation system 1 will be described with reference to FIG. The navigation system 1 is mounted on a vehicle as a moving body, and includes a vehicle position detecting device 100, a vehicle speed detecting device 101, a central processing unit (CPU) 102, a display image processing / synthesizing device 103, a map data storage device 105, A ROM 106 for storing various programs, a RAM 107 for storing various processing results, an operation system I / F 109, a display control device 111, and the like are connected via a bus line 104.
[0019]
The vehicle position detecting device 100 includes a well-known gyroscope, a GPS (Global Positioning System) GPS receiver that detects the position of the vehicle based on radio waves from satellites, and the like. Since each of these sensors and the like has an error having a different property, the sensors and the like are configured to be used while being interpolated by a plurality of sensors. Note that, depending on the accuracy, a part of the above-described components may be used, and a geomagnetic sensor, a steering rotation sensor, a wheel sensor for each rolling wheel, or the like may be used.
[0020]
The vehicle speed detecting device 101 detects the (moving) speed of the vehicle based on, for example, the number of vehicle speed pulses generated in proportion to the rotation angle of the drive shaft of the vehicle.
The CPU 102 controls the entire navigation system 1, and the display image processing / synthesizing device 103 executes an operation for synthesizing a display image with a menu screen or an information display screen.
[0021]
Further, the map data storage device 105 is a part for storing various data including map data and so-called map matching data for improving the accuracy of position detection. The road data forms a map by connecting a plurality of nodes such as intersections with links, and for each link, a unique number (link ID) for specifying the link and a link indicating the length of the link It stores link information including data of length, x and y coordinates of the start and end of the link, road width of the link, and road type (indicating road information such as a toll road). As a storage medium, a CD-ROM, a DVD-ROM, a hard disk, or the like is generally used, but another medium such as a memory card may be used. Needless to say, for example, when a CD-ROM or the like is used, a CD player or a DVD player for reading data is also provided.
[0022]
An operation switch 108 for receiving various operations by the user such as selection, enlargement, reduction, cursor movement, character input, and the like is connected to the operation system I / F 109. The operation system I / F 109 is an operation system interface for the input of the operation switch 108.
[0023]
Further, a display device 110 is connected to the display control device 111, and performs control for displaying a navigation image including a map image on the display device 110. Here, the navigation image includes not only a map screen W1 including a road map and a guidance route at the time of route guidance, but also a function menu screen such as enlargement / reduction / movement of a map, intersection information, traffic congestion information, or sightseeing around. There is an information display / menu window screen W2 indicating information on the vicinity of the current position such as geographical information.
[0024]
The operation switch 108 may be configured by, for example, a touch switch integrated with the display of the display device 110, a mechanical switch mounted around the display, or a remote control switch (not shown). Good.
[0025]
Next, a display process of a navigation image in the navigation system 1 of the first embodiment will be described with reference to a flowchart of FIG. This process is executed every predetermined time.
In S200 which is the first step, the current position of the own vehicle is detected by the vehicle position detecting device 100, and in the following S210, the moving speed (vehicle speed) of the own vehicle is detected by the vehicle speed detecting device 101.
[0026]
Then, it is determined whether or not the detected vehicle speed is higher than a predetermined speed for determination (determination speed) (S220). This determination is made by the CPU 102. When the vehicle speed is higher than the determination speed (S220: YES), the display image processing / synthesizing device 103 performs "image processing / synthesis without transition" (S230), while when the vehicle speed is equal to or lower than the determination speed (S220: NO). ), The display image processing / synthesizing apparatus 103 performs “image processing / synthesis with transition” (S240). Then, the image processed and synthesized in S230 or S240 is displayed by outputting it to the display device 110 using the display control device 111 (S250).
[0027]
Here, when the “image processing / combination with transition” in S240 is executed and the display image is output in S250, the following display is performed. That is, from the state in which the map screen W1 is displayed as shown in FIG. 3A, the information display / menu window screen W2 is moved from the right side of the screen as shown by a left-pointing arrow shown by a broken line in FIG. The information display / menu window screen W2 itself is displayed while being wiped, as displayed by moving to the left, or as indicated by a vertical arrow indicated by a broken line in the information display / menu window screen W2. Of course, the display of the movement which combined these may be sufficient.
[0028]
On the other hand, when the “image processing / combining without transition” in S230 is executed and the display image is output in S250, the following display is performed. That is, from the state where the map screen W1 is displayed as shown in FIG. 3C, the information display / menu window screen W2 only appears at a predetermined position as shown in FIG. 3D.
[0029]
In the first embodiment, the vehicle speed detecting device 101 and the CPU 102 correspond to “moving state specifying means” in claim 1, and the CPU 102 and the display control means 111 correspond to “display control means” in claim 1. .
As described above, in the navigation system 1 according to the first embodiment, when the information display / menu window screen W2 is synthesized and displayed on the map screen W1, only when the vehicle speed is equal to or lower than the determination speed (S220: NO), The information display / menu window screen W2 to be synthesized and displayed is displayed while animating (S240). If the vehicle speed exceeds the determination speed (S220: YES), the information display / menu window screen W2 is a still image. Since the display is performed (S230), a more appropriate map display can be realized while preventing the animation from being overly distracted.
[0030]
In addition, when the vehicle speed exceeds the determination speed, it is also possible to take measures such as not displaying the information display / menu window screen W2 at rest, but merely displaying a (relatively) simple animation. As a simple animation display in this case, for example, a display combining image size and shape change with a small number of frames can be considered. On the other hand, when the vehicle speed is equal to or less than the determination speed, a (relatively) complicated animation display is performed. This is, for example, a display that is long in time and combined with movement of an image and change in size and shape. is there.
[Second embodiment]
Since the map display device is also applied to the navigation system in the second embodiment, a schematic configuration of the navigation system 2 will be described with reference to FIG. The navigation system 2 is mounted on a vehicle as a moving body, and includes a vehicle position detection device 120, a vehicle speed detection device 121, a central processing unit (CPU) 122, a display image processing / synthesizing device 123, and a guidance route display position detection device. 124, a map data storage device 126, a ROM 127 for storing various programs, a RAM 128 for storing various processing results, a guidance route memory 129, an operation I / F 131, a display control device 133, and the like via a bus line 125. Connected and configured. An operation switch 130 is connected to the operation I / F 131, and a display device 132 is connected to the display control device 133.
[0031]
Among these components, “the vehicle position detection device 120, the vehicle speed detection device 121, the CPU 122, the display image processing / synthesizing device 123, the map data storage device 126, the ROM 127, the RAM 128, the operation switch 130, the operation system I / F 131, the display The device 132 and the display control device 133 are “the vehicle position detecting device 100, the vehicle speed detecting device 101, the CPU 102, the display image processing / synthesizing device 103, the bus line 104, the map data storage device 105, and the ROM 106 in the first embodiment described above. , RAM 107, operation switch 108, operation system I / F 109, display device 110, and display control device 111 ", respectively, and detailed description will be omitted.
[0032]
On the other hand, a guidance route display position detecting device 124 and a guidance route memory 129 which are configurations unique to the second embodiment will be described.
In the second embodiment, the CPU 122 searches (calculates) a guidance route. Specifically, from the current position of the vehicle detected by the vehicle position detection device 120 or the departure point input by the user via the operation switch 130 to the destination input by the user also via the operation switch 130 Calculate the route. As a method of automatically setting the optimum route, a method such as the Dijkstra method is known, and therefore, the details are omitted. The guidance route searched in this way is stored in the guidance route memory 129. When performing route guidance, for example, as shown in FIGS. 6A and 6C, a vehicle mark indicating the vehicle position and a guidance route R are displayed on a map around the vehicle position. In this case, the range of the map to be displayed is controlled so that the own vehicle position is near the center of the screen and the own vehicle traveling direction is toward the upper part of the screen. Further, the guidance route R is displayed on such a map. The guidance route appeals to the user's vision by displaying, for example, a conspicuous color along a road corresponding to the guidance route.
[0033]
When the guidance route R is displayed in this manner, the guidance route display position detecting device 124 detects at which position on the map screen the guidance route R exists. Various detection methods are conceivable. As an example, for example, as shown in FIG. 7A, the display range of the map screen W1 is divided into meshes, and it is determined which mesh the guidance route R passes. There is a method to do it. Since the guide route R is distinguished from the others by using a specific color, it can be determined based on the color.
[0034]
For example, in FIG. 7A, the map screen W1 is divided into 5 × 5, and mesh numbers 1 to 25 are assigned in order from the upper left to the lower right. In this case, the guidance route R passes through seven meshes of mesh numbers 4, 5, 8, 9, 13, 18, and 23. The remaining mesh is a mesh that does not pass through the guidance route R (the hatched portion in FIG. 7A), and connects them vertically and horizontally, and displays the center of gravity of the area of the mesh group occupying the largest area as an information display / The display center of the menu window screen W2. In the simple mesh connection, the connection area has an indeterminate polygon shape. For example, it is conceivable to select a region occupying the largest area as a rectangle in the connection area. For example, in the case of FIG. 7A, the area on the left side of the figure is larger than that on the right side. However, when the mesh of mesh number 3 is added, the area does not become a rectangle. , 2, 6, 7, 11, 12, 16, 17, 22, and 23 are used. Then, the center of gravity of the area of the mesh group is set as the display center of the information display / menu window screen W2.
[0035]
In addition to the selection of the region occupying the largest area as a rectangle in the combined region, for example, a rectangular portion that takes into account the vertical and horizontal proportions of the information display / menu window screen W2 to be displayed may be adopted.
Further, the example of FIG. 7A is divided into 5 × 5 meshes for easy understanding, but the size of the meshes is arbitrary. As a matter of course, if the size of one mesh is reduced, the accuracy in specifying the location of the guidance route R is improved, but the calculation load required for specifying the position increases.
[0036]
Next, a display process of a navigation image in the navigation system 1 of the second embodiment will be described with reference to a flowchart of FIG. This process is executed every predetermined time.
In step S300, which is the first step, the current position of the host vehicle is detected by the vehicle position detection device 120. In step S320, it is determined whether route guidance is currently being performed.
[0037]
When the route guidance is being performed (S320: YES), the display image processing / synthesizing apparatus 103 performs the image processing / combination on the “position that does not hinder the route guidance direction” (S330), and when the route guidance is not being performed (S330). (S320: NO), the display image processing / synthesizing apparatus 103 performs the image processing / synthesis to the “normal position” (S340). Then, the image processed and synthesized in S330 or S340 is displayed by outputting it to the display device 130 using the display control device 131 (S350).
[0038]
Here, whether or not the position is a position that does not hinder the route guidance direction in S330 is determined based on the guide route position in the map screen detected by the guide route display position detecting device 124 described above. For example, as shown in FIG. 6A, when the route guidance direction along the guidance route R from the position of the own vehicle near the center of the screen is directed to the right side of the screen, the information display / menu window screen W2 is shown in FIG. As shown in the figure, the position is displayed on the left side of the screen as “a position that does not hinder the route guidance direction”. Further, for example, as shown in FIG. 6C, when the route guidance direction along the guidance route R from the own vehicle position near the center of the screen is directed to the left side of the screen, the information display / menu window screen W2 is displayed as shown in FIG. ) Is displayed on the right side of the screen.
[0039]
On the other hand, the “normal position” of S340 is a predetermined fixed position, and may be, for example, one of the positions in FIG. 6B or FIG. 6D.
As the vehicle advances, the display position of the guidance route R on the screen naturally changes. Therefore, for example, even if the information display / menu window screen W2 is displayed on the left side of the screen without hiding the guidance route R as shown in FIG. Since R may be displayed, an information display / menu window screen W2 is displayed on the right side of the screen in that case. As described above, the information display / menu window screen W2 is displayed at an appropriate position that does not hide the guidance route R at each time.
[0040]
In the second embodiment, the guidance route display position detecting device 124 corresponds to “display position specifying means” in claim 2, and the CPU 122 and the display control means 131 correspond to “display control means” in claim 2. .
As described above, in the navigation system 2 according to the second embodiment, the information display / menu window screen W2 can be displayed at a position where the guidance route R is not hidden in the screen during the route guidance. It is possible to prevent a situation in which the user is not able to see the image, and a display appropriate for the user is realized.
[0041]
In the present embodiment, as described above, it is assumed that the map is displayed such that the vehicle position is near the center of the screen and the traveling direction of the vehicle is toward the upper part of the screen. As illustrated, it is considered that the guidance route R is often present only on either the left or right half of the screen. However, there are cases where a complicated traveling direction is inevitable, and the guidance route R is not always present in only one of the left and right halves of the screen. Even in such a case, the position where the guidance route R exists must be avoided. Information display / menu window screen W2. In this case, for example, if the information display / menu window screen W2 has the original size, a part of the guidance route R may be hidden no matter where it is displayed. Therefore, in that case, the information display / menu window screen W2 may be reduced in size and displayed.
[0042]
However, if the size is reduced too much, the content to be transmitted to the user on the information display / menu window screen W2 may not be sufficiently transmitted. For example, there are cases where the characters or icons to be displayed are too small. In reality, the size that can be reduced is limited. Therefore, if the guide route R is hidden even if the size is reduced to the limit size, for example, the map screen W1 and the information display / It is conceivable to display the guidance route R so as to be visually recognized, for example, by performing transparent synthesis with the menu window screen W2.
[0043]
Further, for the user who receives the route guidance, it is preferable that the guide route R is not hidden, but it is also not preferable that, for example, the information display / menu window screen W2 is located just before the guide route R. That is, it is preferable for the user to recognize the intersection name and the facility near the guidance route R in order to understand the route. Therefore, it is also a preferable measure to consider the information display / menu window screen W2 as an area that does not display as much as possible in a predetermined range around the guidance route R. Specifically, for example, there may be a range where the mark of an intersection (a gas station, a convenience store, etc.) existing along a road or the like is not hidden.
[0044]
[Another embodiment]
(1) Although only one determination speed is used in the first embodiment, a plurality of determination speeds may be set, and the display method may be changed for each determination speed. For example, as the determination speed increases, the degree of simplification of the animation is increased, and when the maximum determination speed is exceeded, a still image is displayed.
[0045]
Further, such a determination speed may be arbitrarily set by operating the operation switch 108 by the user. Regarding the contents of simple animation that does not hinder driving, there are individual differences depending on the experience and qualities of the driver. Therefore, if the driver can set the determination speed by himself, it is possible to cope with such individual differences.
[0046]
Further, control for changing the display method of the information display / menu window screen W2 may be performed according to the determination speed of zero, that is, whether the vehicle is moving or stopped. In this case, it is also possible to make the determination based on, for example, the operating state of the parking brake, without making the determination using the vehicle speed. This makes it easy to determine.
[0047]
(2) In the second embodiment, the display position of the information route / menu window screen W2 is changed without changing the display position of the guidance route R. However, the information display / menu window screen W2 is reversed. May be changed without changing the display position of the guidance route R. For example, as shown in FIG. 7B, when the guidance route R extends obliquely upward and leftward from the vicinity of the center of the map screen W1, the information display / menu window screen W2 displayed on the left side of the screen overlaps with a part thereof. As a result, a part of the guidance route R is hidden. Then, by moving the guidance route R to the right side, the two do not overlap.
[0048]
It is conceivable to cope by changing the display positions of both the guidance route R and the information display / menu window screen W2. Then, the size of the information display / menu window screen W2 described above may be changed only when such a change in the display position cannot be dealt with. If the size is reduced too much, the content to be transmitted to the user on the information display / menu window screen W2 may not be sufficiently transmitted to the user. Therefore, the size must be reduced only when the display position cannot be changed. Is considered to be preferable.
[0049]
(3) The display image processing / synthesizing devices 103 and 123 and the guidance route display position detecting device 124 in the above embodiment may be realized by hardware, or may be realized by software processing using a CPU or the like. .
(4) In the above embodiment, the current vehicle position is specified based on the data detected by the vehicle position detection devices 100 and 120 including a gyroscope and a GPS receiver. However, in order to specify the current position, such vehicle position detection devices 100 and 120 are not necessarily required. For example, an in-vehicle communication device for acquiring position information from a roadside beacon or the like may be provided, and the current position may be specified based on the acquired position information. Alternatively, a mobile phone, a PHS, or the like may be connected to the navigation systems 1, 2, and the current location may be specified by a position specifying function of the mobile phone, the PHS, or the like.
[0050]
(5) In the above embodiment, an example in which the present invention is applied to the in-vehicle navigation systems 1 and 2 has been described. However, the present invention is not limited to this application, and can be applied to, for example, a terminal device carried by a human. It is. Also in this case, for example, it is difficult to see if there is a moving display when running or walking, and if you are too distracted by the screen, it is easy to lose attention to the surroundings, so in such cases It is a preferable measure that the animation display is stopped and a still screen is displayed.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating an overall configuration of a navigation system according to a first embodiment.
FIG. 2 is a flowchart illustrating a display process in the navigation system according to the first embodiment.
FIG. 3 is an explanatory diagram of an example of display contents by display processing in the navigation system of the first embodiment.
FIG. 4 is a block diagram illustrating an overall configuration of a navigation system according to a second embodiment.
FIG. 5 is a flowchart illustrating a display process in the navigation system according to the second embodiment.
FIG. 6 is an explanatory diagram of a display content example by a display process in the navigation system of the second embodiment.
7A is an explanatory diagram of a method of determining a display position of a guide route R, and FIG. 7B is an explanatory diagram of a case where the display position of the guide route R is changed to cope with the change.
[Explanation of symbols]
1,2 ... Navigation system
100, 120 ... Vehicle position detecting device
101, 121: Vehicle speed detecting device
102, 122 ... CPU
103, 123 ... display image processing / synthesizing device
104, 125 ... bus line
105, 126 ... Map data storage device
106, 127 ... ROM
107, 128 ... RAM
108, 130 ... operation switches
109, 131 ... operation system I / F
110, 132 ... Display device
111, 133 ... Display control device
124: guidance route display position detection device
129: Guide route memory

Claims (17)

A map display device mounted on a moving body and capable of displaying another screen on a map screen by combining the screens,
Moving state specifying means for specifying a moving state of the moving body,
A map display device comprising: display control means for changing and controlling a display method of the another screen combined and displayed on the map screen according to a moving state of the moving object specified by the moving state specifying means. A map display device that is mounted on a moving body and that can display a map screen so that a guidance route for route guidance can be identified, and that can display another screen on the map screen by combining the screens,
Display position specifying means for specifying a display position of the guidance route in the map screen;
When the display position of the guidance route in the map screen specified by the display position specifying means and the display position of the other screen to be synthesized and displayed on the map screen overlap, the display method of the other screen or A display control means for changing and controlling at least one of the guidance route display methods. The map display device according to claim 1,
The map display characterized in that the control for changing the display method of the other screen by the display control means changes and controls an animation display method in which the screen content, the screen position, the screen size, the screen shape, and the like change. apparatus. The map display device according to claim 1, wherein
The moving state specifying means can specify a moving speed of the moving body,
The map display device, wherein the display control means changes and controls a display method of the another screen according to a moving speed of the moving body. The map display device according to claim 4,
The map display device, wherein the display control means controls to change a display method of the another screen depending on whether or not a moving speed of the moving body exceeds a predetermined determination speed. The map display device according to claim 5,
A map display device, wherein a plurality of the determination speeds are set. The map display device according to claim 5 or 6,
The map display device, wherein the determination speed used for determination by the display control means to change and control the display method can be arbitrarily set by a user. The map display device according to claim 1, wherein
The moving state specifying means can specify whether the moving body is moving or stopped, and the display control means sets the display method of the other screen according to whether the moving body is moving or stopped. A map display device that performs change control. The map display device according to claim 8,
The moving body is a vehicle having a parking brake,
The map display device, wherein the moving state specifying means specifies whether the moving body is moving or stopped based on an operation state of the parking brake. The map display device according to claim 2,
The display control means displays a display position of the other screen or the guide route on which the combined display is performed so that the guide route and the periphery of the guide route (hereinafter, a guide route and the like) in the map screen are not hidden as much as possible. A map display device for changing and controlling at least one of the positions. The map display device according to claim 10,
The display control means may control the display position of the other screen or at least one of the display positions of the guidance route, if the guidance route or the like in the map screen is hidden, and perform the composite display. A map display device for changing and controlling the display size of another screen. The map display device according to claim 11,
The display control means performs the combined display only when the guidance route or the like in the map screen is hidden even after performing both the display position control of the other screen and the display position control of the guidance route. A map display device, which changes and controls the display size of the other screen. The map display device according to claim 11 or 12,
The display control means may be configured such that, if the guidance route or the like is hidden even if the display size of the other screen to be combined and displayed is changed, the map screen and the other screen so that the guidance route can be seen through. A map display device characterized in that a screen is transparently synthesized. The map display device according to any one of claims 10 to 13,
The map display device, wherein the display control means displays the other screen to be combined and displayed at a predetermined position in a predetermined size when the guidance route is not displayed. The map display device according to any one of claims 1 to 13,
The other display screen to be combined and displayed includes at least one of a function menu screen such as enlargement / reduction / movement of a map and a current position peripheral information screen such as intersection information. A computer is specified by the moving state specifying means and the moving state specifying means in the map display device according to any one of claims 1, 3 to 9, or claim 15 citing those claims. And a program for functioning as the display control means for changing and controlling a display method according to a moving state of the moving body. A computer is specified by the display position specifying means and the display position specifying means in the map display device according to any one of Claims 2, 10 to 14, or Claims 15 to which those claims are cited. A program for functioning as the display control means for changing and controlling a display method according to a display position of the guidance route on the map screen.

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