JP3204083B2 - Navigation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device for superimposing and displaying the position of a measured vehicle on map data.

[0002]

2. Description of the Related Art In recent years, GPS (Grobal P
ositioning system), vehicle position information obtained based on the output of a vehicle speed sensor, geomagnetic sensor, etc., and map data stored on an optical disk, IC card, etc., together with a liquid crystal display (LC).
D)) has been developed. In such a navigation device, a route that is a drive course from a starting point to a destination point is set on the map data, and further, with respect to the set route, an intersection at which the position and traveling direction of the vehicle are changed on the map data is enlarged and displayed. , Inform the user.

[0003]

In such a conventional navigation device, when a vehicle approaches an intersection where the course is changed, an enlarged view of the intersection is displayed. The intersection could not be displayed and the information on the traveling direction could not be grasped.

[0004] It is an object of the present invention to provide a navigation device that can easily grasp in advance route information at an intersection where a route is to be changed when driving according to a set route.

[0005]

SUMMARY OF THE INVENTION To solve this problem, the present invention provides a positioning means for positioning a vehicle, a map storage means for storing road map data, and an image signal such as road map data. Display means for performing the data input operation, a route setting storage means for setting a route connecting the starting point and the destination point on the road map data set by the operation means, and storing the route as route data. An enlarged map creating means for creating an enlarged map of an intersection based on road map data; and a screen of a display means divided into a predetermined number, and an intersection changing course based on the road map data and the route data is selected and selected. The enlarged view of the intersection is created by the enlarged view creating means, and the control means for outputting the enlarged view to the display means, and the simplified view of the entire route is created based on the route data.
Route map creating means, and an enlarged view of the intersection and the route map.
Control means for outputting to the display means in addition to the drawing .

[0006] Thus, a navigation device can be obtained in which, when driving according to the set route, the route information at the intersection where the route is changed can be easily grasped in advance.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention displays positioning means for positioning a vehicle, map storage means for storing road map data, and image signals such as road map data. Display means, operation means for performing data input operation, route setting storage means for setting a route connecting the starting point and the destination point on the road map data set by the operation means, and storing the route as route data; The screen of the enlarged view creating means for creating an enlarged view of the intersection based on the road map data and the screen of the display means are divided into a predetermined number, and the intersection changing the course based on the road map data and the route data is selected and selected. Control means for causing the enlarged view creation means to create an enlarged view of the intersection and outputting the information to the display means, so that a plurality of intersections for changing the course on the set route can be provided. And displays at the same time, said Lou
To create a simplified map of the entire route based on the data
It is provided with a figure creating means, and the control means is an enlarged view of the intersection.
By outputting the route map and the route map to the display unit , the route information at the intersection where the route on the route is changed can be easily grasped.

[0008]

The invention described in claim 3 of the present invention is characterized in that
In the first or second aspect , the control means includes:
The enlarged view of the intersection to be output to the display means is provided with a divided screen number, and the enlarged view of the intersection is provided with the same number at a position on the route map to which the enlarged view of the intersection corresponds, so that the enlarged view of the intersection and its The same number is given to the corresponding position on the route map of the intersection.

[0010]

An embodiment of the present invention will be described below with reference to a screen.

FIG. 1 is a functional block diagram of a navigation device according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes positioning means for positioning the position of a vehicle, which uses a GPS receiver that receives radio waves from a plurality of GPS satellites at the same time and outputs position information of the vehicle. However, the positioning method is not limited to the method called radio wave navigation by the GPS, and a self-contained navigation using a vehicle speed sensor, a gyro sensor, or the like may be used. Numeral 2 denotes data storage means for storing road map data and point information (hereinafter, referred to as "landmark information") as landmarks of buildings and facilities as digital data, and is a CD-ROM (Compact Disk-R).
ead Only Memory).
Reference numeral 3 denotes image display means for displaying an image signal such as map data, and an LCD or the like is used for a display screen. Reference numeral 4 denotes an operation means for inputting data by a user, which inputs data by operating a keyboard, a touch panel, or the like, or inputs data by recognizing a voice uttered by the user. And so on. Reference numeral 5 denotes a route setting storage unit that sets a drive route based on the start point and the destination point input from the operation unit 4 and stores the drive route as route data. Reference numeral 6 denotes a route diagram creating unit that creates a simplified diagram (hereinafter, referred to as “route diagram”) showing the entire drive route based on the route data of the drive route stored by the route setting storage unit 5.
Reference numeral 7 denotes an enlarged map creating means for creating an enlarged map of an intersection based on road map data. Reference numeral 8 denotes control means for controlling each of the above means.

The road map data stored in the data storage means 2 includes road information indicating the shape and connection status of the road, road width information indicating the width of the road, point information indicating an intersection, information regarding an intersection name, and the like. I have.

In the following description, it is assumed that the drive route from the starting point to the destination point has been set and stored in advance by the route setting storage means 5. As a method of setting a drive route, a method of minimizing the distance from the starting point to the destination point or a method of mainly passing through a main road has already been put into practical use, and a detailed description thereof will be omitted.

The enlarged view of the intersection created by the enlarged view creating means 7 is, for example, as shown in FIG. 4 described later, the outline of the road shape of the intersection, the traveling direction at the intersection, the name of the intersection, and the like. This is indicated by landmark information existing near the intersection.

The operation of the navigation device configured as described above will be described below.

FIG. 2 is an operation flowchart of the navigation device according to the embodiment of the present invention. As shown in FIG. 2, as initial processing, the control means 8 sets the number of enlarged views of the displayable intersections as the number of screen divisions (step 1), and resets a variable i for managing the divided screens (step 1). 2). In this embodiment, since the route map is displayed on a part of the divided screen, the number of enlarged views of the intersection that can be displayed is (i-1).

The route data of the drive route stored in the route setting storage means 5 is read (step 3), and a route map is created by the route map creating means 6 based on the route data and the corresponding road map data of the route data. (Step 4), it is determined whether the information is intersection information that changes the course (Step 5).

In step 5, if it is an intersection where the course is changed, the variable i is incremented (step 6),
The enlarged view of the intersection is created by the enlarged view creating means 7 (step 7), the enlarged view of the intersection is set on the divided screen indicated by the variable i (step 8), and the variable is set at the position of the corresponding intersection on the route diagram. The number indicated by i is set (step 9). On the other hand, if it is not an intersection that changes the course in step 5, the next data is read.

If the variable i becomes the number of possible displays of the intersection enlarged view, that is, the number obtained by subtracting 1 from the number of divided displays (variable i) (step 10), the image display means 3 displays the enlarged view of the intersection on the divided screen. And a route diagram is output (step 11), and the operation of the user is awaited (step 12). If the user performs an operation to display the next data, i is reset (step 13), and the operation from step 3 is repeated until the end of the route setting storage data. If it is not the display number of the enlarged view of the intersection, the next data is read.

In step 3, if the data to be read is the last data, processing of screen display (step 14) and operation waiting (step 15) are performed and the processing is terminated.

FIG. 3 is an explanatory diagram of screen division in one embodiment of the present invention, and FIG. 4 is a diagram showing a display example in one embodiment of the present invention, showing a case where the number of screen divisions is nine. FIG.
As shown in FIG. 4, numbers are assigned to the divided screens, and as shown in FIG. 4, the intersection where the course is changed and the variable i for managing the divided screens are made to correspond to each other, and the enlarged intersection map is set to the screen number indicated by i. Also, the route map is set at the position of the number of the screen division, and the variable i is superimposed and displayed at the position of the enlarged intersection. The method of screen division and the number of screen divisions are changed depending on the size of the screen and the visibility of the user, and are not particularly limited.

In this embodiment, the enlarged view of the intersection is created by the enlarged view creating means 7 based on the road map data. However, the enlarged view of the intersection is stored in the data storage means 2 as image data in advance. You may leave it.

As described above, in the present embodiment, the screen is divided and an enlarged view of the intersection where the course is changed is displayed in a list, so that the information about the intersection that changes the course which is the point of the set drive route can be understood in advance. It can be useful if you want to preview the set driving route. In addition, a route map, which is a simplified diagram of the drive route, is displayed on a part of the divided screen, and the numbers corresponding to the numbers assigned to the enlarged map of the intersection to be displayed are displayed on the route map, thereby displaying the enlarged map. The approximate position of the intersection on the drive route can be easily grasped.

[0024]

As described above, according to the present invention, positioning means for positioning the position of a vehicle, map storage means for storing road map data, and display means for displaying image signals such as road map data, Operation means for performing data input operation, route setting storage means for setting a route connecting a starting point and a destination point on the road map data set by the operation means, and storing the route data as route data; Enlarged map creating means for creating an enlarged map of the intersection based on the
Control of dividing the screen of the display means into a predetermined number, selecting an intersection whose course is to be changed based on the road map data and the route data, causing the enlarged view creation means to create an enlarged view of the selected intersection, and outputting the enlarged view to the display means Means for simultaneously displaying a plurality of intersections for changing the course in the set route, and displaying the route data.
For creating a simple map of the entire route based on the route map
A step, and the control means includes an enlarged view of the intersection and the route.
By outputting to the display means together with the route diagram , the route information at the intersection where the route on the route is changed can be easily grasped, and when the user wants to preview the drive course, for example, It is possible to grasp the course information at the intersection where the course is changed, which is the point of the course to be driven.

[0025] In addition, it is possible to display on the part of the screen obtained by dividing the its root view, such as when the user wants a preview of the drive course, at the intersection to perform a course change to be a point of course to drive in advance Route information and the outline of the driving route can be grasped.

Further, the control means assigns divided screen numbers to the enlarged view of the intersection output to the display means and assigns the same number to the position on the route map to which the enlarged view of the intersection applies. By assigning the same number to the enlarged view of the intersection and the corresponding position on the route map of the intersection, it is possible to grasp the approximate position of the intersection shown as the enlarged view on the route.

[Brief description of the drawings]

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

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

FIG. 3 is an explanatory diagram of screen division in one embodiment of the present invention.

FIG. 4 is a diagram showing a display example according to an embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 positioning means 2 data storage means 3 image display means 4 operation means 5 route setting storage means 6 route map creation means 7 enlarged map creation means 8 control means

Claims (5)

(57) [Claims] 1. Positioning means for positioning the position of a vehicle, map storage means for storing road map data, display means for displaying an image signal such as the road map data, and operation means for performing data input operation Route setting storage means for setting a route connecting the starting point and the destination point on the road map data, and storing the route data as route data; and an enlarged view creating means for creating an enlarged view of an intersection based on the road map data. Dividing the screen of the display means into a predetermined number, selecting an intersection that changes the course based on the road map data and the route data, and causing the enlarged view creation means to create an enlarged view of the selected intersection, Control means for outputting to the display means, and simultaneously displaying a plurality of enlarged views of the intersection changing the course, and a route based on the route data.
Route map creation means to create a simplified map of the entire
The control means generates an enlarged view of the intersection and the route map.
A navigation device for outputting to the display means . 2. A positioning device for positioning a position of a vehicle, a map storage device storing road map data, an enlarged map storage device storing an enlarged view of an intersection in the road map data, and Display means for displaying an image signal, operation means for performing data input operation, route setting storage means for setting a route connecting a starting point and a destination point on the road map data, and storing the route data as route data; The screen of the display means is divided into a predetermined number, an intersection where a course is changed based on the road map data and the route data is selected, an enlarged view of the selected intersection is read from the enlarged view storage means, and the display means is displayed. Control means for simultaneously outputting a plurality of enlarged views of the intersection changing the course and displaying a route based on the route data.
Route map creation means to create a simplified map of the entire
The control means generates an enlarged view of the intersection and the route map.
A navigation device for outputting to the display means . Wherein the control means is configured to impart a screen number divided in the enlarged view of an intersection to be output to the display unit, to grant the same number for the position of the drawing routes enlarged intersection of the appropriate the navigation device according to any one of 請 Motomeko 1 or 2. 4. is an enlarged view of the intersection plurality are listed at the same time, the navigation device according to any one of claims 1 to 3. With 5. The enlarged view of the intersection, the intersection name is also displayed, the navigation device according to any one of claims 1 to 4.