JPH09304107A - Navigator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide navigator which makes it possible to know the existence of facilities desired to call at and, moreover, to minimize bypassing at the time of calling at the facilities. SOLUTION: This navigator, mounted on a moving body, computes the position of the moving body and the azimuth of the advance thereof and displays the position and the azimuth of the advance of the moving body in an overlapping manner on a road map displayed in a display device 10, while it displays a route selected from ones which can be taken from the start position to the position of destination, as a set route, on the road map when these positions are specified. When a request for indication of facilities is made, in this case, a list of the names of facilities existing within a prescribed range of distance from the set route and the courses from the present position of the moving body to the facilities is displayed in the display device 10 under the control of a circuit 14-3 for searching for the facilities and displaying them, and when the facilities desired to call at are specified in the list displayed, these facilities are displayed in an overlapping manner on the road map displayed in the display device 10, under the control of a circuit 14-4 for controlling display of the specified facilities.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device having a display function of a current position and a moving direction of a moving body and a set route display function, and more particularly to a navigation device for displaying facility information around a route.

[0002]

2. Description of the Related Art A conventional navigation device receives a signal from a GPS satellite to detect the position and direction of travel of a person carrying or carrying the navigation device, and other information to determine the movement trajectory of the user. In combination with dead reckoning for detecting a position, the current position is estimated and displayed on a screen of a display device together with a road map and the like. Furthermore, when the person who carries or carries this navigation device sets the current position or an arbitrary point as the starting point and sets another point different from the starting point as the destination, the person can reach the destination from the starting point. There is also a navigation device configured to search a route, specify a set route from the searched routes, and guide the movement of a moving body by the set route.

[0003]

However, in the above-mentioned conventional navigation device for displaying the set route and guiding the movement of the moving body, a desired position different from the target position by the set route is set in the middle of the movement according to the set route. There may be times when you want to stop at a facility. In such a case, there is a problem that the desired facility exists, or the distance and direction to the facility cannot be known even if it is known that the desired facility exists.

Furthermore, when a user stops at a desired facility on the way according to the set route, depending on the traveling direction of the moving body, it is necessary to judge whether or not an extremely detour will be forced before returning to the set route from the stop facility. There was also a problem that I could not do it.

According to the present invention, a navigation system is possible in which the presence of a desired facility to stop by and the distance and direction to the desired facility can be known during movement based on a set route, and the detour from the stop facility to the return to the original set route can be minimized. The purpose is to provide a device.

[0006]

A navigation device according to the present invention is mounted on a moving body to calculate the position and traveling direction of the moving body, and displays the calculated position and traveling direction of the moving body on a display device. The route selected from the possible routes from the starting position to the destination position when the starting position and the destination position are specified is displayed as the set route on the road map while being displayed superimposed on the road map. In the navigation device used to guide the movement of the moving body,
When a facility display request is made, facility search / display means for displaying a list of facility names existing within a predetermined distance range from the set route and the route from the current position of the moving body to the facility on the display device, and displayed. And a designated facility display control means for displaying a designated stop facility by superimposing the designated stop facility on the road map when the stop facility is designated from the list.

According to the navigation apparatus of the present invention, the position and traveling direction of the moving body which are mounted on the moving body are calculated, and the calculated position and traveling direction of the moving body are displayed on the road map displayed on the display device. While superimposing and displaying,
Navigation to display a route selected from possible routes from the starting position to the destination position when the starting position and the destination position are specified as the set route on the road map to provide guidance for the movement of the moving body When a facility display request is made in the device, a list of facility names existing within a predetermined distance range from the set route and the route from the current position of the moving body to each facility under the control of the facility search / display control means The table is displayed on the display device, and when the stop-off facility is designated from the displayed list, the designated stop-over facility is displayed superimposed on the road map under the control of the designated facility display control means. .

Therefore, if there is a desired stop-off facility within a predetermined distance from the set route, the desired stop-off facility position is displayed on the road map before the moving body moves to the stop-off facility. As a result, it is necessary to take a detour to find the desired facility to drop in by knowing the transit road from the current position of the moving body to the desired facility to drop in and the return road to return to the set route from the desired facility to drop in by the road display on the display device. Disappears. Further, even if the user stops at the stop-off facility and deviates from the set route once, he / she can find the road with the fewest detours from the stop-off facility and can return to the set route by the little detour.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A navigation device according to the present invention will be described with reference to an embodiment.

The navigation device according to the embodiment of the present invention is an example of a vehicle-mounted navigation device, and FIG. 1 is a block diagram showing the configuration of the navigation device according to the embodiment of the present invention. .

A vehicle-mounted navigation device according to an embodiment of the present invention includes a plurality of map data including position information of data of various facilities and data for showing a relation between each map data and each map search. A CD-ROM 1 in which data and the like are recorded, a GPS signal receiving device 2 mounted on the vehicle for receiving signals from GPS satellites to determine the position and the traveling direction of the vehicle, and a relative position of the vehicle. A positioning device 5 including an azimuth sensor 3 including an angle sensor for detecting a moving direction and a distance sensor 4 for detecting a relative traveling distance of the vehicle, and map data read from the CD-ROM 1 for a plurality of display ranges. A buffer memory 6 for storing the data, a character generator 7 for displaying a character corresponding to a character code in the map data recorded in the CD-ROM 1, The display is enlarged, scrolled, so-called paging for switching the display to the next screen is configured, and the map and facility name display based on the map data recorded in the CD-ROM 1 as coordinate data is cooperated with the image memory 9. Display controller for displaying on the display device 10 (hereinafter referred to as GDC)
8 is provided.

The vehicle-mounted navigation device according to the embodiment of the present invention further includes a CPU 14, a touch panel 11 as an input device, a ROM 12 in which a program of the CPU 14 is stored, a work area, and data at the time of calculation by the CPU 14. RAM 13 for temporarily storing Here, although the touch panel 11 is independently displayed, the display device 10 may be a so-called touch screen in which the touch panel is superimposed on the display screen.

Based on a program stored in the ROM 12, the CPU 14 receives a signal from the GPS signal receiving device 2, a signal from the azimuth sensor 3 and a signal from the distance sensor 4, and calculates the position of the vehicle and the traveling direction of the vehicle. Then, the map data of the predetermined range including the calculated own vehicle position is recorded on the CD-RO.
M1 is read and written in the buffer memory 6, the map data in the range where the vehicle position is at the predetermined display position on the display device 10 is read from the buffer memory 6, and GD is read.
After controlling C8 to convert it into image data, the image data is stored in the image memory 9, and the character data corresponding to the character code in the map data is read from the character generator 7 into the image data and the character data stored in the image memory 9. The display device 10 displays the map and characters based on the map and the facility together with the vehicle position.

Here, the image memory 9 is a screen for displaying a vehicle position mark (hereinafter also referred to as a layer), a layer for displaying a map including roads, a route layer for displaying route guidance, and a facility display. With a storage capacity for multiple layers, such as a layer for display, a layer for displaying characters, etc.
The display based on each layer is superimposed and displayed on the screen of the display device 10 under the control of 14 and the GDC 8.

In the CD-ROM 1, the road information includes an intersection (node) and a road (link) connected to the intersection (node), and the position of the intersection (node) is recorded as coordinate data together with the map data. Further, road names, intersection names, facility names, and road positions are recorded.

The CPU 14 functionally calculates the position and traveling direction of the moving body mounted on the moving body, and superimposes the calculated position and traveling direction of the moving body on the road map displayed on the display device. Positioning calculation / display control circuit 1
4-1 and a route selected from the routes that can be taken from the departure position to the destination position when the departure position and the destination position are designated are displayed as a set route on the road map to guide the movement of the moving body. Route search / display control circuit 14-2
When a facility display request is made, a facility search / display circuit 14 that causes the display device to display a list of facility names existing within a predetermined distance range from the set road and the route from the current position of the moving body to the facility. 3, and a designated facility display control circuit 14-4 for designating a stop-by facility from the displayed list and displaying the designated stop-by facility on the road map when the stop-by facility is designated, It cooperates with the GDC 8 and the touch panel 11.

The operation of the navigation device according to the embodiment of the present invention configured as described above will be described with reference to the flowchart shown in FIG.

In the vehicle-mounted navigation device according to the embodiment of the present invention, when the execution of the program is started, the position of the own vehicle and the moving direction of the own vehicle are measured every predetermined period. More specifically, in positioning the own vehicle position and the moving direction of the own vehicle, the own vehicle position and the moving direction of the own vehicle based on the signal from the GPS signal receiving device 2 are based on the signals from the azimuth sensor 3 and the distance sensor 4. It is corrected based on the position and the traveling direction, and is corrected to the position on the road, and the positioning of the own vehicle position and the own vehicle moving direction ends.

Following positioning, it is checked whether or not it is instructed to search for facilities near the route (step S1). The instruction to search for a facility near the route is given by touching the display position of the search displayed on the display device 10 through the touch panel 11. If it is determined in step S1 that the search for facilities near the route is not instructed, another routine is executed.

When it is determined in step S1 that a search for facilities near the route is instructed, it is checked whether or not the route is set (step S2). The route is set by designating a starting position and a destination position and displaying possible routes, and by designating a traveling route from a plurality of possible display routes. This designated route is a set route, and guides the movement of the vehicle as a guide route. In some cases, the shortest route is displayed and that route is set as a guide route.

FIG. 3 is an example showing a display of the set route. In FIG. 3, reference numeral 21 indicates the own vehicle position and reference numeral 22.
Indicates a set route (hatched), reference numeral 23 indicates a destination position, reference numeral 24 indicates a road including the set route, reference numeral 25-
Reference numerals 1, 25-2, 25-3, and 25-4 indicate roads that are not set routes, respectively, and there is a starting position (not shown) further below the lower end position in FIG.

When it is determined in step S2 that the route has been set, facility selection is executed following step S2 (step S3). If it is determined in step S2 that the route has not been set,
The route is set (step S4), and then the facility is selected (step S3). When the facility is selected in step S3, the facility layer is selected (step S5), and the coordinate position of the facility on the facility layer is compared with the coordinate of the set route on the route layer (step S5).
6). Only the facilities adjacent to the set route are extracted by executing the collation in step S6 (step S7).
Here, the extracted range is a facility within a preset distance from the set route, and the predetermined range is an adjacent range.

The facilities extracted in step S7 are arranged in the order of the distance from the current position of the vehicle (step S7).
8) Then, a list of facility names and the distance traveled from the current position of the vehicle is displayed on the screen of the display device 10 (step S9). An example of the list display by executing step S10 is as shown in FIG. From the display of the list in step S9, it is possible to know whether the facility desired to drop in exists within the range adjacent to the set route, and further, the reach distance from the vehicle position to the facility via the set route.

A facility desired to drop in is selected from the screen displayed in step S9 (step S10). The facility desired to drop in at step S10 is selected by touching the desired facility position on the display screen through the touch panel 11. Subsequent to step S10, on the road map screen displayed on the display device 10, the facility desired to stop at the position on the display screen based on the position of the facility desired to stop is displayed (step S11). An example of this display in step S11 is as shown in FIG. 3, and the reference numeral 26 indicates the designated facility, which is additionally displayed as shown in FIG. 3 by the execution of step S11.

Therefore, from the display of FIG. 3, the position of the facility designated as the desired stop-by facility is known, the road 25-4 is traveled from the set route 22, the stop 26 is reached, and the roads 25-4 and 25-3 are again visited. A route from the setting route 22 to the facility 26 and a route from the facility 26 to the setting route 22 such as returning to the setting route via the route will be known. Further, when there are a plurality of desired stop-off facilities of the same type in the list display in step S9, a plurality of facilities are displayed in the display of FIG. 3 by designating a plurality of facilities, and not only the reach distance but the set route is returned again. It will be possible to judge whether the road situation is good or bad, and it will be easy to select a stop-off facility.

[0026]

As described above, according to the navigation device of the present invention, if there is a desired stopover facility within a predetermined distance range from the set route, the desired stopover facility position is displayed on the road map before the moving body moves. And as a result of this,
By the road display on the display device, the transit road from the current position of the moving object to the stop desired facility and the return road to return to the set route from the stop desired facility can be known, and it is not necessary to detour to find the desired facility to stop by, Further, even if the user stops at the stop-off facility and deviates from the set route once, it is possible to find the road with the least detour from the stop-off facility, and the effect of being able to return to the set route by the little detour is obtained.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a configuration of a navigation device according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of the navigation device according to the embodiment of the present invention.

FIG. 3 is a schematic diagram showing a display on the display device for explaining the operation of the navigation device according to the embodiment of the present invention.

FIG. 4 is a schematic diagram showing a display of a facility list on a display device for explaining the operation of the navigation device according to the embodiment of the present invention.

[Explanation of symbols]

 1 CD-ROM 2 GPS signal receiving device 3 Direction sensor 4 Distance sensor 5 Positioning device 6 Buffer memory 8 GDC 9 Image memory 10 Display device 11 Touch panel 14 CPU 14-1 Positioning calculation / display control circuit 14-2 Route search / display control Circuit 14-3 Facility search / display control circuit 14-4 Designated facility display control circuit 21 Own vehicle position 22 Set route 23 Target position 26 Facility position

Claims (1)

[Claims] 1. A moving body mounted on a moving body to calculate a position and a moving direction of the moving body, and the calculated position and moving direction of the moving body are superimposed and displayed on a road map displayed on a display device. In a navigation device that displays a route selected from possible routes from a starting position to a destination position when a position and a destination position are designated as the set route on the road map to guide the movement of a moving body When a facility display request is made, facility search / display means for displaying a list of facility names existing within a predetermined distance range from the set route and the route from the current position of the moving body to the facility on the display device, The designated facility display control means is provided for designating a stop-by facility from the list displayed and displaying the designated stop-by facility on the road map when the stop-by facility is designated. Navigation device according to claim.