JPH10332406A - Navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to set the route, which is present within arbitrary radii with a starting point and a destination as the centers and suitable for user's intention, by obtaining circles with the starting point, the destination and the starting point and the destination as the centers with an input means, and selecting the intended tollgates for the toll roads present within the circles. SOLUTION: The map-information that is read out of a map-information memory means 2 is displayed on a display means 4 on the image plane. Based on the map, the starting point and the destination are set and inputted by using an input means 5. The circumferences of the arbitrary diameters with the preset starting point and the destination as the center are set inputted into a memory 3. In an entrance memory means 6, the coordinates of the inputted circumferences are computed by a circumference computing means 7 and whether the tollgates for the toll roads are present in the coordinates or not is judged. The tollgates present in the coordinates are detected and provided by an entrance detecting means 8. Of the provided tollgates, the intended tollgate is selected. Thus, the path is set so as to include the intended entrance-rate paying post.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device, and more particularly to an improved navigation device having a function of automatically setting a traveling route by inputting a departure place and a destination on a map displayed on a display device. About.

[0002]

2. Description of the Related Art A current position is determined by using radio waves from a plurality of satellites, map data is read out from map information storage means such as a CD-ROM, and a map is displayed on a display device as a display means. In-vehicle navigation devices that can be used for route guidance are rapidly spreading.

[0003] Such a navigation device is configured, for example, as shown in FIG. This navigation device includes, for example, a control means 1 including a central processing unit (CPU) which incorporates a predetermined program and operates under program control, and a GPS which receives radio waves from a plurality of GPS satellites and outputs positioning data of a current position. Receiver and map information storage means 2 such as a CD-ROM storing map data
, A memory 3 for storing map data read from the map information storage means 2, an azimuth sensor (not shown) for measuring an azimuth, and a movement sensor (not shown) for measuring a movement from the departure place. ), Display means 4 such as a CRT or a liquid crystal display for displaying the map data read from the map information storage means 2 on a screen, and input means 5 for inputting data such as a departure place and a destination by keyboard operation or the like. It is configured.

By the way, the map data stored in the map information storage means 2 includes road network data connecting path points called nodes (nodes) such as intersections, branch points, and inflection points by straight lines called links. The guidance route is set based on the road network data. Therefore, the guide route is basically a point on the road network, but it is also possible to set a route point at a point outside the road network according to the user's preference.

[0005] This navigation device operates, for example, as follows. First, when the control means 1 is started, the control means 1 operates based on a program stored in the memory. Then, map data necessary for displaying the current position of the vehicle is read from the map information storage means 2 and displayed on the display means 4. On the other hand, the current position coordinates of the own vehicle are calculated from the absolute position measurement data from the GPS receiver or the position measurement data by the self-contained navigation based on the direction sensor and the movement amount sensor, and displayed on the display means 4 by the control means 1. It is overwritten on the map. The position of the vehicle on the map is moved and displayed as the vehicle moves. Therefore, the current position of the own vehicle can be easily confirmed on the map.

[0006]

By the way, prior to the use of the navigation device, the navigation device sets a departure place (usually the current position of the vehicle) and a destination, so that the navigation device can be operated from the departure place to the destination. Is automatically set. At this time, in addition to the departure point and the destination, by designating various points such as a to-be-stopped point, a toll road such as an expressway, and a national road to be used, the shortest distance based on the priority use degree of these requests is specified. Route setting is performed.

[0007] If the route set in this way is used,
The self-vehicle only needs to travel in accordance with the guidance route displayed on the display means 4, and it is possible to reliably move to the destination in the shortest distance.

However, in this navigation device, when searching for a route, the route is automatically searched based on the priorities of use of various roads such as toll roads such as expressways and national roads which are desired to be used. However, since the user cannot specify an interchange such as an expressway or a rampway entrance or exit (tollgate) that he / she wants to use, the entrance / exit tollgate intended by the user is not necessarily reflected in the set route, and the user's intention It may be provided by searching for a route different from the above. For this reason, even if the user intentionally sets a point where the user wants to drop in near the entrance toll gate where he / she wants to use, there is a problem that the entrance toll gate intended by the user cannot be used depending on the set route. Sometimes.

Therefore, an object of the present invention is to provide, at the time of automatic route setting, toll gate data of entrances and exits of toll roads existing within an arbitrary radius centered on a desired departure point and destination. The object of the present invention is to provide a navigation device capable of setting a route in accordance with the user's intention by selecting the navigation device.

[0010]

SUMMARY OF THE INVENTION Accordingly, in order to achieve the above-mentioned object, the present invention provides a map information storage means for storing map information and an entrance storage means for storing position data of an entrance tollgate on a toll road. Display means for displaying the map information read from the map information storage means on a screen; departure place, destination and departure place based on the map displayed on the display means;
Input means for inputting an arbitrary circumference centering on the destination;
Circumference calculating means for calculating the coordinates of the circumference around the input departure point and destination, and entrance detection for detecting an entrance tollgate present in the coordinates calculated by the circumference calculating means from the entrance storage means. Means, and control means for controlling each of these means, providing an entrance tollgate within an arbitrary circumference from the departure point and the destination set by the input means, including the selected entrance tollgate It is characterized in that the route is set as follows.

A second invention of the present invention is a map information storage means for storing map information, an entrance storage means for storing position data of an entrance toll gate on a toll road, and a map read from the map information storage means. Display means for displaying information on a screen, input means for inputting a departure place and a destination based on a map displayed on the display means, and a circle for calculating coordinates of a circumference including the input departure place and destination A circumference calculating means, an entrance / exit detecting means for detecting an entrance / exit tollgate present in the coordinates calculated by the circumference calculating means from the entrance / storage means, and a control means for controlling each of these means; An entrance toll gate within an arbitrary circumference is provided from the set departure point and destination, and a route is set so as to include the selected entrance toll gate.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a navigation device according to the present invention will be described with reference to FIGS. The same parts as those in the conventional example shown in FIG. 4 are denoted by the same reference numerals, and detailed description thereof will be omitted. The feature of this embodiment is that the circumference calculating means 7 calculates the coordinates of an arbitrary circumference centered on the starting point and the destination set based on the map displayed on the display means 4. The entrance toll booth located in the coordinates is detected and provided by the entrance detection means 8 from the entrance storage means 6, and a desired entrance toll booth is selected by selecting a desired entrance toll booth from the provided entrance toll booths. That is, the route is set so as to include

This navigation device operates, for example, as follows. First, the map information read from the map information storage means 2 is displayed on the screen of the display means 4, a departure place and a destination are set based on the map, and the latitude and longitude data of the departure place and the destination are input. When input using the means 5, this data is stored in the memory 3. When an arbitrary circumference centered on the departure place and the destination, for example, a circumference having a radius of 5 km, is input using the input means 5, the circumference calculation means 7 outputs the latitude / longitude (coordinates) on the input circumference. ) Is calculated, the latitude / longitude data of the toll gate on the toll road stored in the entrance storage unit 6 is checked by the entrance detection unit 8, and the entrance toll gate corresponding to the circumference is stored in the memory 3. Is transferred to the control means 1, and the control means 1 is controlled so that the display means 4 displays the data as shown in FIG. Therefore, as shown in FIG. 2, the display means 4 displays a plurality of entrance toll booths located within a circumference having a diameter of 10 km centering on the departure place. When a desired entrance tollgate is selected from the entrance tollgates, the selected data is transferred to the control means 1. If the desired entrance toll booth does not exist, or if there are no multiple entrance toll booths, the diameter of the circumference is appropriately changed and the same operation is performed. This completes the setting of the entrance tollgate desired by the user. In the subsequent search for the guide route, the entrance tollgate data set by the user is preferentially used.

The setting of the toll gate on the toll road described above is as follows.
Specifically, for example, it is performed according to the setting flow shown in FIG. First, at step S1, the map information read from the map information storage means 2 is displayed on the display means 4 on a screen, and a departure place and a destination are set and input using the input means 5 based on the map. In step S2, the set departure place,
A circumference having an arbitrary diameter centered on the destination is set and input to the memory 3 by the input means 5. In step S3,
The input coordinates of the circumference are calculated by the circumference calculation means 7, and whether or not an entrance tollgate of the toll road exists in the coordinates is determined by a search by the entrance / exit storage means 6. If it is determined that there is no entrance tollgate, the process returns to step S2, a larger circumference is set, and the same operation is performed. On the other hand, if it is determined that there is an entrance tollgate, the process proceeds to step S4. Step S4
Then, as shown in FIG. 2, it is determined whether or not a desired entrance tollgate has been selected from a plurality of entrance tollgates displayed on the screen of the display device 4. If it is determined that the desired entrance tollgate has not been selected, the process returns to step S2, where a circumference having a larger diameter is set, and the same operation is performed thereafter.
On the other hand, if it is determined that the desired entrance tollgate has been selected,
The data is input to the memory 3 and the processing flow ends. Note that this processing is similarly performed for the destination after the departure place is completed.

According to this embodiment, a plurality of toll gates on a toll road are provided along with the setting of a departure place and a destination.
By selecting a desired entrance tollgate, a route including these entrance tollgates is preferentially set at the time of route search. Therefore, it is possible to set a route that suits the user's preference.

In particular, after the departure place and destination are set by the input means 5, an arbitrary circumference centering on the departure place and destination is set.
By inputting, the circumference calculating means 7 calculates the coordinates on the circumference, inquires the entrance tollgate existing in the coordinates by the entrance detection means 8, and the existing entrance tollgate is displayed on the display means 4. You. Therefore, by selecting a desired entrance tollgate from the displayed entrance tollgates,
It is used effectively for route setting.

The tollgate on the toll road has coordinates (latitude / longitude) data at the entrance / exit storage means 6, so that the tollgate is located within an arbitrary circumference according to the setting of the departure place and the destination. The existing entrance tollgate can be easily searched by the entrance detection means 8.

The present invention is not limited only to the above-described embodiment. For example, the circumference calculating means automatically obtains a circumference having an arbitrary radius centered on the coordinates of the input starting point and destination. At the same time, it is also possible to determine the latitude / longitude on the circumference and detect the entrance tollgate of the toll road existing in the circumference by the entrance / exit detecting means.
This eliminates the need to input the circumference by the input means. Further, the doorway data can be stored in the map information storage means. Further, the current position positioning means may be constituted by a GPS receiver of the satellite navigation or a direction sensor and a movement amount sensor of the self-contained navigation, or may be configured to use both navigations in combination.

[0019]

As described above, according to the present invention, prior to the route search, the departure place and the destination are set, and an arbitrary circumference centered on the departure place and the destination is obtained. The entrance toll gate of the toll road existing in is searched by the entrance detection unit, and the existing entrance tollgate is displayed on the display unit, and a desired entrance tollgate is selected from among them. Since the route including the entrance tollgate is preferentially set, the route can be set according to the user's preference.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing a state where question data is displayed on a display means.

FIG. 3 is a flowchart for selecting a doorway tollgate;

FIG. 4 is a block diagram of a conventional navigation device.

[Explanation of symbols]

 Reference Signs List 1 control means 2 map information storage means 3 memory 4 display means 5 input means 6 doorway storage means 7 circumference calculation means 8 doorway detection means

Claims (2)

[Claims] 1. Map information storage means for storing map information, entrance / exit storage means for storing position data of an entrance toll gate on a toll road, and display means for displaying map information read from the map information storage means on a screen. Input means for inputting a departure place, a destination and a departure place and an arbitrary circumference centered on the destination based on the map displayed on the display means, and a circle centered on the input departure place and destination A circumference calculating means for calculating the coordinates of the circumference, an entrance detecting means for detecting an entrance tollgate present in the coordinates calculated by the circumference calculating means from the entrance storage means, and a control means for controlling these means. The departure place provided by the input means,
A navigation device which provides an entrance toll gate within an arbitrary circumference from a destination and sets a route so as to include the selected entrance tollgate. 2. Map information storage means for storing map information, entrance / exit storage means for storing position data of an entrance toll gate on a toll road, and display means for displaying map information read from the map information storage means on a screen. Input means for inputting a departure place and a destination based on a map displayed on a display means, circumference calculation means for calculating coordinates of a circumference including the input departure place and destination, and circumference calculation means Entrance / exit detecting means for detecting the entrance / exit tollgate present in the coordinates calculated by the entrance / exit storage means, and control means for controlling these means, from the departure place and destination set by the input means. A navigation device characterized by providing an entrance tollgate within an arbitrary circumference and setting a route to include a selected entrance tollgate.