JP2000283772A - Running position indication apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain detailed information of specified land marks by a simple operation or automatically. SOLUTION: The running position indication apparatus comprises a guide key G which is depressed to display on a screen 112 detailed information of a land mark LM being three-dimensionally displayed on a screen 111 read from map data storing means on a display means, and also to display on a picture detailed information of a specified facility mark or scene mark being displayed on a map read from the map data storing means on the screen, based on a signal showing that the distance of the facility mark or scene mark from the current position of own vehicle decreases within a fixed range.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling position display device for displaying, on a road map displayed on a display device, a mark such as the position of a vehicle, a facility, a traveling route, and the like in a vehicle-mounted navigation device.

[0002]

2. Description of the Related Art FIG. 10 is a schematic block diagram of a conventional car navigation system. In FIG. 10, reference numeral 1 denotes a direction sensor such as an optical gyro for detecting a relative running direction of an automobile, 2 denotes a distance sensor that generates a pulse corresponding to the number of rotations of wheels, and 3 denotes on / off signals of a brake switch, a parking switch, and the like. And 4 are sensor signals processing units for processing sensor signals such as a direction sensor 1, a distance sensor 2, and various sensor signals 3. Reference numeral 5 denotes a GPS (Global Positioning System) receiver, which receives and calculates radio waves transmitted from a plurality of satellites to obtain the position (latitude, longitude) of a reception point. Reference numeral 6 denotes a CD-ROM drive which reads map data from a CD-ROM 7 on which map data is recorded. 8
Is a display / operation unit installed in the passenger compartment, and has a liquid crystal display 8A for displaying a map and the current traveling position and direction of the car, and a touch panel 8B disposed on the front surface thereof. A switch for instructing enlargement or reduction of the map, a switch for instructing a route search, a switch for selecting a destination from the place names displayed on the liquid crystal display 8A, and the like are provided. Reference numeral 9 denotes an apparatus main body, which is arranged in a trunk room of an automobile.

In the apparatus main body 9, reference numeral 10 denotes a CPU (central processing unit) for performing various operations, and reference numeral 11 denotes a program RO which is a read-only or one-time rewritable memory storing various arithmetic programs to be executed by the CPU 10.
M and 12 are DRAMs which are rewritable memories for storing data from the direction sensor 1, the distance sensor 2, various sensor signals 3, the GPS receiver 5, the CD-ROM drive 6 and the like, and the calculation results of the CPU 10, etc .; SRAM is a backup memory for holding necessary data even when power supply to the apparatus main body 9 is stopped;
14 is a kanji character which is a read-only memory for storing patterns such as characters and symbols displayed on the liquid crystal display 8A.
A font ROM 15, an image processor for forming a display image based on map data or the current position data of the vehicle, 16 a map data output from the CPU 10,
VR, which is an image memory for synthesizing the current position data and the kanji and fonts output from the kanji / font ROM 14 such as town names and road names and displaying them on the liquid crystal display 8A
AM and 17 are RGB converters for converting the output data of the VRAM 16 into color signals and outputting them to the liquid crystal display 8A, 18 is the apparatus main body 9, display / operation unit 8, CD-ROM
This is a communication interface for controlling communication between the drive 6, the GPS receiver 5, and the like. Reference numeral 19 denotes a speaker that outputs sound.

FIG. 11 shows a format of map data stored in the CD-ROM 7, reference numeral 21 denotes a disk label, reference numeral 22 denotes a drawing parameter, reference numeral 23 denotes figure leaf management information, reference numeral 24
Are map leaves (map data), and these map leaves store background data, character data, road data, and the like, and store data for each unit map obtained by dividing a topographic map of Japan by latitude and longitude. ing. Each leaf is composed of map display levels A, B, and C that describe the same area.
Map display levels A, B, C are B more than A, C more than B
Is described in more detail. Each of the map display levels A, B, and C is composed of map display level management information and a plurality of units, and each unit describes a divided area obtained by dividing the area of each map display level into a plurality. , Unit header, character / symbol layer, background layer,
It is composed of a road layer, an option layer, and the like. Place names, road names, facility names, etc. displayed on the map are recorded in the character / symbol layer, and roads,
Data for drawing a map of a facility or the like is recorded. In the road layer, as shown in FIG. 12, data relating to coordinate points (nodes) and lines (links) describing roads including intersections, for example, nodes. Node numbers, latitude and longitude, link numbers of links, link distances, road gradient information, and the like are recorded. In FIG. 12, a white circle (○)
Indicates a node, a line between nodes indicates a link, and a black circle (●) indicates a node at an intersection. The data recorded in the road layer is not directly involved in map drawing,
It is used as road network information for map matching. At the end of the unit, an extension unit is set, and the extension unit stores photographic data 30 for a specific landmark (a facility serving as a landmark) in a bitmap.

In FIG. 11, reference numeral 25 denotes route search data, in which search data is recorded for each layer from layer 0 for a small area to layer n for a large area. The search data of each hierarchy is composed of node connection data 26, link estimated transit time (link cost) data 27, and route display data 28. Node connection data 2
As shown in FIG. 13, reference numeral 5 denotes data indicating to which node each of the nodes a to g, X, and Y is connected. For example, the node c is connected to the nodes a, d, f, and Y. To indicate that Also, link cost data 27
Indicates the link cost of the link between the nodes. For example, the link cost of the link between the nodes a and c is “5”, and the link cost of the link between the nodes a and b. Indicates that the link cost between the node a and the node d is “20”. The link cost is obtained from link cost = link distance / set speed, and the set speed is set according to the road type and the road width as shown in FIG. Route display data 2
8 stores data for displaying the route selected by the route search on the map on the liquid crystal display 8A.

In FIG. 11, reference numeral 29 denotes voice data such as voice guidance. The audio data 29 is recorded as a digital signal. This digital signal is D / A-converted, and then output from the amplifier to the speaker 19 via a filter to reproduce the audio guidance.

Next, the operation of the on-vehicle navigation device configured as described above will be described. In FIG. 10, the output of the direction sensor 1 and the output of the distance sensor 2 are:
When sent to the CPU 10 via the sensor processing unit 4, the CP
In U10, the current position of the own vehicle is calculated, the latitude and longitude of the current position are obtained, and the GPS receiver 5 is operated.
The current position is corrected based on the data from. The map data of the unit corresponding to the current position obtained in this manner is stored in a CD-R drive by the CD-ROM drive 6.
The map data is read from the OM 7 and stored in the DRAM 12 via the communication interface 18. DR
Part of the map data stored in the AM 12
And converted into image data by the image processor 15 and written to the VRAM 16. VRA
The image data stored in M16 is converted into a color signal by the RGB conversion unit 17, sent to the liquid crystal display 8A, and a map of a predetermined range including the current position is displayed. Also DRA
If the map data read from M12 includes character codes and symbol codes, patterns corresponding to these character codes and symbol codes are stored in the kanji / font ROM14.
And is displayed together with the map on the liquid crystal display 8A. In addition, the liquid crystal display 8A is based on a traveling speed and a traveling azimuth sequentially obtained as the vehicle travels.
Is sequentially changed.

Next, the route search operation will be described with reference to FIG. First, a destination is set in step S1. The destination is set, for example, by inputting the address of the destination, by specifying a point on the map displayed on the liquid crystal display 8A, or from a place name index displayed on the liquid crystal display 8A. This is done by selecting the place name. Next, step S2
Then, it is determined whether or not to start a route search. This determination is made based on whether or not the route search switch on the touch panel 8B has been operated. If it is determined in step S2 that the route search switch has been operated, the process proceeds to step S3, where a route search is performed. In this route search, as shown in FIG. 13, all the link costs from the departure point (current position node) X to the destination node Y are added, and the route with the lowest link cost is selected. In the case of (1), the total link cost (10 + 5 + 5 + 5 + 5 + 5 = 5 = 35) of the links X → a → c → d → f → g → Y becomes the smallest, so that a route connecting these links is selected. FIG.
The route selected in step S3 is displayed, for example, in red on the map of the liquid crystal display 8A in step S4.

FIG. 16 shows step S3 in FIG. 15 in more detail. First, a departure node and a destination node that are closest to the departure and destination positions input in step S11 are selected. In FIG. 13, the node X is selected as the departure node, and the node Y is selected as the destination node. Next, step S1
2 stores the route search data including the departure node X in the CD-ROM
7 and a route search on the departure point side is performed in step S13. In this route search, as described above, the route with the lowest total link cost is selected. Next, in step S14, it is determined whether or not the connection is made to the target node as a result of the search in step S13. The distance from the departure point to the destination is relatively short, and the CD-RO
If the destination node Y is included in the data read from M7, it is determined to be Y (yes) in step S14, but if the distance from the departure point to the destination is long, the processing proceeds to step S14. It is determined as N (No), and the process proceeds to Step S15. In step S15, route search data including the destination node Y is read from the CD-ROM 7, and in step S16, a route search on the destination side is performed. Step S1
At 7, it is determined whether or not the route selected by the route search on the destination side in step S16 is connected to the search route on the departure side. If the result of this determination is no, the search hierarchy is raised by one rank in step S18. If the read data in steps S12 and S15 is the route search data of layer 0, the rank is raised to layer 1 in step S18. Next, in step S19, the starting node and the destination node are reset, and the process returns to step S12.

FIG. 17 shows that the distance between the departure point and the destination is long,
FIG. 17 is a diagram illustrating an operation when it is determined to be NO in steps S14 and S17 in FIG. 16, wherein the route selected in the route search on the departure side is not connected to the destination node, and If the selected route is not connected to the route found in the route search on the departure side, the layer 1
Is read, and a departure node 32 and a destination node 33 are set. When the route indicated by the solid line is searched by the route search in the hierarchy 1, the determination is YES in step S14 in FIG. 16, and the process proceeds to step S20. In step S20, a route from the departure point to the destination is formed. Then, the display data of the searched route is created, and the route search ends.

FIG. 18 shows an example of a display screen. A map is displayed in a bird's eye view on the screen, and landmarks 41 serving as landmarks are displayed in three dimensions. The landmark 41 displayed in such a three-dimensional manner indicates that detailed information about the landmark is set, and that the detailed information can be obtained. When the landmark 41 is clicked, the detailed information is displayed as character information 42 and image information 43 such as a photograph.

[0012]

However, in the above-mentioned conventional traveling position display device, in order to obtain detailed information of a specific landmark displayed in three dimensions, after moving the cursor to the landmark, ENT is displayed. There is a problem in that it is necessary to press a key, and it takes time to move a cursor to a landmark.

The present invention solves such a conventional problem, and provides a traveling position display device capable of displaying detailed information such as a specific facility or landscape by a simple operation or automatically. The purpose is to do.

[0014]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for specifying a specific facility mark on a map read from a map data storage means on a display means. Is pressed, the detailed information of the facility mark is displayed on the display means, and the detailed information of the specific facility can be obtained by a simple operation.

According to the present invention, when a specific facility mark or landscape mark is displayed on a map read out from the map data storage means on a display means, the facility mark or landscape mark is displayed from the current position of the own vehicle. When the distance to the position of the mark is within a certain range, detailed information of the facility mark or the landscape mark is displayed on the display means based on a signal indicating that, and a specific facility or Detailed information such as landscape can be automatically obtained.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 of the present invention provides a current position calculating means for calculating a current position of a vehicle, a route searching means for searching for a route from a current position to a destination,
A travel position display device comprising: a map read out from a map data storage unit storing map data including a facility mark; and a display unit for displaying a current position and a searched route on the map. When a specific facility mark is displayed on the map read from the map data storage means onto the display means, pressing a specific instruction key displays detailed information of the facility mark on the display means. The present invention is a travel position display device characterized by including a display control means for performing a function of acquiring detailed information of a specific facility by a simple operation.

According to a second aspect of the present invention, there is provided the travel position display device according to the first aspect, wherein the specific facility mark is displayed three-dimensionally, and the facility mark can be easily recognized. It has the action of:

In the invention according to claim 3 of the present invention, when there are a plurality of specific facility marks, they are displayed in order from the one closer to the center of the screen. It is a position display device, even if multiple specific facility marks are displayed, without re-operating
It has the effect that detailed information of those facility marks can be acquired in order.

According to a fourth aspect of the present invention, when the detailed information of a specific facility mark includes character information and image information, the character information and the image information are displayed in order. The travel position display device according to any one of Items 1 to 3, having an effect that detailed information of a specific facility mark can be visually recognized using image information such as a photograph.

The invention according to claim 5 of the present invention is characterized in that a key for user registration of a specific facility mark is displayed on a screen displaying detailed information of a specific facility mark. The travel position display device according to any one of claims 1 to 4, wherein the detailed information of a specific facility mark is viewed, and if the facility is a useful facility for the user, the facility is registered as a user. This has the effect that the facility search can be performed efficiently.

The invention according to claim 6 of the present invention is characterized in that a key for setting a facility as a destination is displayed on a screen on which detailed information of a specific facility mark is displayed. The travel position display device according to any one of claims 1 to 5, wherein when the user wants to see the detailed information of a specific facility mark and go to the facility, the facility is set as a destination. This has an effect that a route search to the facility is automatically executed and the route can be displayed on a map.

According to a seventh aspect of the present invention, the travel position display according to any one of claims 1 to 6, wherein detailed information of a specific facility mark is displayed on a half side of a display screen. The device has the effect that detailed information of a specific facility mark can be known while looking at a road map.

The present invention according to claim 8 of the present invention provides a map data storing means for storing map data including facility marks and landscape marks, a current position calculating means for calculating a current position of a vehicle, and a destination from a current position. A travel position display device comprising: a route search means for searching for a route to the map; and a display means for displaying a map read from the map data storage means and displaying the current position and the searched route on the map. In the case where a specific facility mark or landscape mark is displayed on the map read from the map data storage means on the display means, the distance from the current position of the own vehicle to the location of the facility mark or landscape mark A display control means for displaying, on a display means, detailed information of the facility mark or the landscape mark based on a signal indicating that the information has entered a predetermined range. A running position display device characterized by having a has the effect that can automatically get more information, such as specific facilities and landscape.

According to a ninth aspect of the present invention, the distance from the current position of the vehicle to the position of the facility mark or the landscape mark is different between the facility mark and the landscape mark. The travel position display device has a function that the facility mark and the landscape mark can be distinguished and processed.

According to a tenth aspect of the present invention, the distance from the current position of the vehicle to the location of the facility mark or the landscape mark is longer in the landscape mark than in the facility mark. 9 is a traveling position display device. In the case of a facility mark, it is easier to understand if detailed information is provided after approaching the facility, and in the case of a landscape mark, it is better to provide detailed information from a distance. It has the effect of being easy to understand.

According to the eleventh aspect of the present invention, there is provided the travel position display device according to any one of the eighth to tenth aspects, further comprising a key for arbitrarily deleting detailed information of the facility mark or the landscape mark. In addition, since the detailed information is automatically displayed, when the detailed information is unnecessary, the detailed information can be immediately deleted by a key operation.

According to a twelfth aspect of the present invention, the erasure of the detailed information of the facility mark or the landscape mark is performed when the own vehicle is separated from the facility mark or the landscape mark by a certain distance or more. The travel position display device according to any one of claims 8 to 11, further comprising means for executing based on the information, and has an operation of automatically deleting detailed information.

According to a thirteenth aspect of the present invention, when the detailed information of a specific facility mark or landscape mark includes character information and image information, the character information and the image information are displayed in order. The traveling position display device according to any one of claims 8 to 12, wherein the detailed information of the specific facility mark can be visually recognized using image information such as a photograph.

The invention according to claim 14 of the present invention is characterized in that detailed information of a specific facility mark or landscape mark is displayed on a half side of a display screen. The traveling position display device has an effect that detailed information of a specific facility mark can be known while looking at a road map.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. (Embodiment 1) FIG. 1 is a schematic block diagram showing the configuration of a traveling position display device according to an embodiment of the present invention. The basic configuration is the same as that of the conventional example shown in FIG. FIG.
, 101 is a current position calculating means for calculating the current position of the vehicle, 102 is a route searching means for searching for a route from the current position to the destination, 103 is a map data storing means for storing map data including photographic image data, 104 Is an operation input means for performing an operation such as a setting input of a destination, and 105 is a display means for displaying the map data read from the map data storage means 103 on the display means 106 and displaying the current position of the vehicle on the displayed map. A display control means 106 for controlling when the traveling route to the destination is displayed in an overlapping manner is a display means such as a liquid crystal display device for displaying map data and other guidance.

Next, the operation of the present embodiment will be described. Since the basic operation of the traveling position display device is the same as that described in the prior art, only the operation unique to the present invention will be described here. This will be described with reference to FIG.
First, the current position of the vehicle is calculated by the current position calculating means 101, and subsequently, when a destination is set by the operation input means 104, a route search is performed by the route searching means 102. The control unit 107 reads necessary map data from the searched route from the map data storage unit 103, and the display control unit 105 displays the searched route together with the map on a display screen of the display unit 106. While the host vehicle is running, the user can select an arbitrary scale diagram, and can scroll the screen in an arbitrary direction by operating a cursor key. The user operates a cursor key (step S101) to display a desired map on the screen (step S102). For example, 1 in FIG.
11, a landmark (target facility) LM is displayed in three dimensions, and detailed information about the landmark is set in such a three-dimensionally displayed landmark. It is assumed that When the user is interested in the landmark LM, the guide key G displayed on the screen 111 is pressed (step S103). When the detailed information is not set for the landmark LM (step S1)
04), only the facility name is displayed on the screen 111 (step 105). When detailed information is set for the landmark LM, the screen changes to a screen 112 shown in FIG. 3, the landmark LM is surrounded by a red frame, and the facility name and the information key I are displayed. Is done. Then, when the user presses the information key I (step S10)
7) As shown in screens 113 and 114 in FIG. 4, details of the landmark are represented by characters when there is character data, by images such as photographs when there is image data, and by images such as photographs when both exist. When the information key I is pressed again on the screen 112, it is displayed in order (step S10).
8). Pressing the down cursor with the joystick key on the screen 113 or 114 displays the next page of detailed information, and pressing the up cursor on the next page screen returns to the screen 113 or 114. When the return key R is pressed on any screen, the screen returns to the screen 111 in FIG.

If there are a plurality of three-dimensionally displayed landmarks LM on the screen 111 in FIG. 3, the target facility is displayed on the screen 112 each time the guide key G is pressed in order from the landmark LM near the center of the screen. Is displayed in a red frame like When the memory point key M is pressed on the screen 112 in FIG. 3, a message indicating that the memory point has been set is displayed as shown in the screen 115 in FIG. 5, and the landmark LM is registered as a user. As a result, a user-specific registered location memo is created, and a search by the registered location becomes possible. When the destination key D is pressed on the screen 112 in FIG. 3, a message to confirm data around the destination is displayed as shown in a screen 116 in FIG. 5, and the node to the destination is obtained. If successful, the screen 117 changes to display a message indicating that the landmark LM has been set as the destination, and after 3 seconds, a map displaying the route from the current location to the landmark LM is displayed. Will be. Thus, when the user wants to see the detailed information of the landmark and go to the facility, the user can automatically acquire a route to the facility by setting the facility as a destination. .

FIG. 6 shows another example of a map screen according to the present embodiment. This is an example of a case where the traveling position display device according to the present embodiment has a function of dividing and displaying one screen into two left and right halves.
Is displayed, and a detailed map or a map having a different viewpoint or style is displayed in the right half. Even in such a two-split screen 118, when the landmark LM is three-dimensionally displayed on the displayed map, pressing the guide key G changes the screen to 119.
The landmark LM is surrounded by a red frame, and the facility name and the information key I are displayed. Then, when the user presses the information key I, the screen 11 in FIG.
3 or 114 is displayed in the right half. The subsequent operation is the same as the operation described above.

As described above, according to the first embodiment, when landmarks are three-dimensionally displayed on the map displayed on the screen, the guide key is pressed on the screen, thereby Since the detailed information of the landmark is displayed, the troublesome operation of first pressing the ENT key after placing the cursor on the landmark is unnecessary, and the detailed information on the landmark can be easily obtained. be able to. The detailed information about the landmark may be displayed on the screen or by audio only.
Screen display and voice guidance may be used together. As the image information, not only still image information but also moving image information may be used.

(Embodiment 2) Next, Embodiment 2 of the present invention will be described. The configuration of the travel position display device according to the second embodiment is the same as that shown in FIG. 1, and the only difference is the control by display control means 105.
Therefore, redundant description of the configuration will be omitted, and only the operation will be described below.

The basic operation of the traveling position display device according to the second embodiment is the same as that described in the prior art, and here, the operation specific to the present invention will be described with reference to FIGS.
This will be described with reference to FIGS. First, the current position of the vehicle is calculated by the current position calculating means 101, and subsequently, when a destination is set by the operation input means 104, a route search is performed by the route searching means 102. Control means 10
7 reads out necessary map data from the searched route from the map data storage means 103,
However, as shown in the screen 121 or 122 in FIG. 8, the searched route is displayed together with the map on the display screen on the display means 106. On the screen 121 in FIG. 8, a normal map road is displayed on the left half, and a map in which, for example, the Tokyo Metropolitan Expressway among the map roads is clearly displayed is displayed on the right half. The screen 122 in FIG. 8 displays a normal road map on one screen. If the landmark LM displayed three-dimensionally comes within 500 m of a straight line distance from the host vehicle position V while the host vehicle is traveling on the displayed route (step S121), a signal indicating this is sent to the control means. The display control means 105 received from 107 outputs detailed information on the landmark LM together with voice guidance (step S122). Here, as shown on a screen 123 in FIG. 8, a normal road map is displayed on the left half of the screen similarly to the screen 121, and a photographic image 124 related to the landmark LM is shown on the right half. This screen 123
9 shows a photo spot key P1, a re-guide key RG, and a photo release key P2. When the photo spot key P1 is pressed (step S123), a road centered on the landmark LM as shown in a screen 125 in FIG. The map is displayed on one screen (step S124). When the display change key is pressed on this screen 125, a road map mainly composed of, for example, an expressway is displayed as shown in a screen 126. When the memory point key is pressed, a memory point is set near a landmark as shown in a screen 127. When a message to the effect is displayed and the destination key is pressed, the destination is set as described with reference to FIG.
Further, by pressing various keys displayed on the screen 125, the operation set for the keys is performed. And
In the meantime, when the position V of the own vehicle is separated from the landmark LM by a linear distance of 700 m or more (Step S12
5), the display control means 105 which has received the signal indicating that from the control means 107 cancels the display of the detailed information on the landmark LM, and returns to the original screen 121 or 122 of FIG. 8 (step 126). Further, even before the host vehicle position V is 700 m away from the landmark LM, it is possible to return to the screen 121 or 122 by pressing the photo release key P2 on the screen 123. In addition, when the enlarged view of the intersection, the enlarged view of the three-dimensional intersection, the schematic diagram of the high-speed branch, the enlarged view of the lane, and the entire route screen after the search is completed are displayed, the screen is forcibly returned to the screen 121 or 122.

In the above description, the photographic image 124 is displayed as detailed information. However, if there is character information, the character information is displayed. If there is character information and photographic information, both are displayed in order. In the above description, landmarks that are facility information are described as targets for displaying detailed information. However, landscape marks that are environmental information such as mountains and seas can be targeted for detailed information. For example, a three-dimensional landscape mark may be set for Mt. Fuji, and when Mt. Fuji is approached, detailed information about Mt. In this case, since the landscape is generally large in area, detailed information is displayed when the vehicle enters a range that is farther than the facility mark, for example, 1000 m in a straight line distance, and the position of the own vehicle is displayed from the displayed landscape mark. However, it is preferable to cancel the display of the detailed information when the vehicle is 1200 m away from the vehicle, for example.

As described above, according to the second embodiment, when the facility mark or the landscape mark is three-dimensionally displayed on the map displayed on the screen, the specific distance set for the mark is displayed. Since the detailed information on the mark is displayed when the user is only approached, the user can easily obtain the detailed information on the mark without doing anything. For more information about landmarks,
Guidance by voice or image may be used, and image information may use not only still image information but also moving image information.

[0039]

As described above, according to the present invention, when a specific facility mark is displayed on the map read from the map data storage means on the display means, a specific instruction key is pressed. By doing so, the detailed information of the facility mark is displayed on the display means, so that the detailed information of the specific facility can be obtained by a simple operation.

According to the present invention, when a specific facility mark or landscape mark is displayed on the map read out from the map data storage means on the display means, the facility mark is displayed from the current position of the own vehicle. Or, when the distance to the position of the landscape mark is within a certain range, detailed information of the facility mark or the landscape mark is displayed on the display means based on a signal indicating that, so that a specific facility or This has an effect that detailed information such as landscape can be automatically acquired.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram showing a configuration of a traveling position display device according to Embodiments 1 and 2 of the present invention.

FIG. 2 is a flowchart showing an operation according to the first embodiment of the present invention.

FIG. 3 is a screen transition diagram showing an operation according to the first embodiment of the present invention.

FIG. 4 is a screen transition diagram showing an operation according to the first embodiment of the present invention.

FIG. 5 is a screen transition diagram showing an operation according to the first embodiment of the present invention.

FIG. 6 is a screen transition diagram showing an operation according to the first embodiment of the present invention.

FIG. 7 is a flowchart showing an operation according to the second embodiment of the present invention.

FIG. 8 is a screen transition diagram showing an operation according to the second embodiment of the present invention.

FIG. 9 is a screen transition diagram showing an operation according to the second embodiment of the present invention.

FIG. 10 is a block diagram showing a configuration of a vehicle-mounted navigation device in a conventional example.

FIG. 11 is a data structure diagram of map data stored on a CD-ROM.

FIG. 12 is a schematic diagram showing road data on map data.

FIG. 13 is a schematic diagram showing a route search method.

FIG. 14 is a list showing setting speeds for calculating link costs.

FIG. 15 is a flowchart showing a route search process.

FIG. 16 is a flowchart showing details of a route search process.

FIG. 17 is a schematic diagram showing a hierarchical structure for a route search process.

FIG. 18 is a screen diagram showing a display example after a route search process has been performed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 101 Current position calculation means 102 Route search means 103 Map data storage means 104 Operation input means 105 Display control means 106 Display means 107 Control means

Claims (14)

[Claims] 1. A current position calculation means for calculating a current position of a vehicle, a route search means for searching for a route from a current position to a destination, and a map data storage means for storing map data including facility marks. And a display means for displaying the current map and the searched route on the map, and displaying the current location and the searched route on the map. And a display control means for displaying detailed information of the facility mark on the display means by pressing a specific instruction key when the facility mark is displayed. 2. The travel position display device according to claim 1, wherein the specific facility mark is displayed three-dimensionally. 3. When there are a plurality of specific facility marks,
3. The travel position display device according to claim 1, wherein the display is performed in order from the one closer to the center of the screen. 4. The method according to claim 1, wherein when the detailed information of the specific facility mark includes character information and image information, the character information and the image information are displayed in order. Travel position display device. 5. The key according to claim 1, wherein a key for user registration of the facility is displayed on a screen on which detailed information of the specific facility mark is displayed. Travel position display device. 6. A key for setting a facility as a destination on a screen on which detailed information of a specific facility mark is displayed. 3. The travel position display device according to claim 1. 7. The travel position display device according to claim 1, wherein detailed information of a specific facility mark is displayed on a half side of a display screen. 8. Map data storage means for storing map data including facility marks and landscape marks, current position calculation means for calculating the current position of the vehicle, and route search means for searching for a route from the current location to the destination. A display device for displaying a map read from the map data storage means, and displaying the current position and the searched route on the map. When a specific facility mark or landscape mark is displayed on the map read out in the above, when the distance from the current position of the vehicle to the position of the facility mark or landscape mark falls within a certain range, Display means for displaying, on a display means, detailed information of the facility mark or the landscape mark based on a signal indicating the travel position. Display device. 9. The travel position display device according to claim 8, wherein the distance from the current position of the own vehicle to the position of the facility mark or the landscape mark differs between the facility mark and the landscape mark. 10. The travel position display device according to claim 9, wherein a distance from the current position of the own vehicle to a position of the facility mark or the landscape mark is longer in the landscape mark than in the facility mark. 11. A key according to claim 8, further comprising a key for arbitrarily deleting detailed information of the facility mark or the landscape mark.
0. The travel position display device according to any one of 0. 12. A system comprising: means for erasing detailed information of a facility mark or a landscape mark based on the distance information when the own vehicle is away from the location of the facility mark or the landscape mark by a certain distance or more. Item 12. The travel position display device according to any one of Items 8 to 11. 13. The method according to claim 8, wherein when the detailed information of the specific facility mark or the landscape mark includes character information and image information, the character information and the image information are displayed in order. 3. The travel position display device according to claim 1. 14. The travel position display device according to claim 8, wherein detailed information of a specific facility mark or landscape mark is displayed on a half side of a display screen.